diff --git a/360-photos.html b/360-photos.html
index 892e5cd66..80f7f51e6 100644
--- a/360-photos.html
+++ b/360-photos.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>360 Photos</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,22 +44,26 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene, WebXRView} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -86,36 +75,21 @@
       }));
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -123,6 +97,14 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
 
         renderer = new Renderer(gl);
         scene.setRenderer(renderer);
@@ -130,14 +112,9 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr').then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -147,21 +124,22 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
         // When rendering 360 photos/videos you want to ensure that the user's
         // head is always at the center of the rendered media. Otherwise users
         // with 6DoF hardware could walk towards the edges and see a very skewed
         // or outright broken view of the image. To prevent that, we request a
-        // 'head-model' frame of reference, which suppresses any positional
-        // information from the headset in favor of a head and neck model based
-        // solely on the device orientation. (As an added bonus this mode may
-        // be more power efficient on some hardware!)
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'position-disabled' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        // 'position-disabled' reference space, which suppresses any positional
+        // information from the headset. (As an added bonus this mode may be
+        // more power efficient on some hardware!)
+        let refSpaceType = session.isImmersive ? 'local' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
           }
           session.requestAnimationFrame(onXRFrame);
         });
@@ -172,17 +150,16 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -196,10 +173,7 @@
         if (pose) {
           let views = [];
           for (let view of pose.views) {
-            let renderView = new WebXRView();
-            renderView.projectionMatrix = view.projectionMatrix;
-            renderView.viewMatrix = view.viewMatrix;
-            renderView.viewport = glLayer.getViewport(view);
+            let renderView = new WebXRView(view, glLayer);
 
             // It's important to take into account which eye the view is
             // associated with in cases like this, since it informs which half
@@ -218,7 +192,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/controller-state.html b/controller-state.html
new file mode 100644
index 000000000..eb2771efe
--- /dev/null
+++ b/controller-state.html
@@ -0,0 +1,368 @@
+<!doctype html>
+<!--
+Copyright 2019 The Immersive Web Community Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-->
+<html>
+  <head>
+    <meta charset='utf-8'>
+    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
+    <meta name='mobile-web-app-capable' content='yes'>
+    <meta name='apple-mobile-web-app-capable' content='yes'>
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
+
+    <title>Controller State</title>
+
+    <link href='css/common.css' rel='stylesheet'></link>
+  </head>
+  <body>
+    <header>
+      <details open>
+        <summary>Controller State</summary>
+        <p>
+          This sample demonstrates using XRInputSource Gamepad button presses
+          to change box color and joystick/touchpad input to move boxes in 2
+          dimensions.
+          <a class="back" href="./index.html">Back</a>
+        </p>
+      </details>
+    </header>
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Node} from './js/render/core/node.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {BoxBuilder} from './js/render/geometry/box-builder.js';
+      import {PbrMaterial} from './js/render/materials/pbr.js';
+      import {mat4, vec3, quat} from './js/render/math/gl-matrix.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
+      }
+
+      // If requested, don't display the frame rate info.
+      let hideStats = QueryArgs.getBool('hideStats', false);
+
+      // XR globals.
+      let xrButton = null;
+      let xrImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
+
+      // WebGL scene globals.
+      let gl = null;
+      let renderer = null;
+      let scene = new Scene();
+      if (hideStats) {
+        scene.enableStats(false);
+      }
+      scene.addNode(new Gltf2Node({url: 'media/gltf/cube-room/cube-room.gltf'}));
+      scene.standingStats(true);
+
+      let floorSize = 10;
+      let floorPosition = [0, -floorSize / 2 + 0.01, 0];
+      let floorNode = null;
+
+      let boxTable = {};
+
+      const BOX_SIZE = 0.03;
+      const BOX_MOTION_RANGE = 0.010;
+      const BOX_SEPARATION = 0.04;
+      const BOX_SET_HEIGHT = 0.03;
+      const BOX_SET_DEPTH = -0.06;
+
+      class GamepadBox extends Node {
+        constructor(position) {
+          super();
+
+          this.position = position;
+          let boxBuilder = new BoxBuilder();
+          boxBuilder.pushCube([0, 0, 0], BOX_SIZE);
+          let boxPrimitive = boxBuilder.finishPrimitive(renderer);
+          let boxMaterial = new PbrMaterial();
+          boxMaterial.baseColorFactor.value = [0.1, 0.1, 0.1, 1]; // grey
+          this.renderPrimitive = renderer.createRenderPrimitive(boxPrimitive, boxMaterial);
+
+          this.addRenderPrimitive(this.renderPrimitive);
+
+          mat4.identity(this.matrix);
+          mat4.translate(this.matrix, this.matrix, this.position);
+
+          this._value = 0.0;
+          this._pressed = false;
+          this._touched = false;
+          this._dx = 0.0;
+          this._dy = 0.0;
+        }
+
+        _updateTransform() {
+          mat4.identity(this.matrix);
+          mat4.translate(this.matrix, this.matrix, this.position);
+          mat4.translate(this.matrix, this.matrix, [
+            this._dx * BOX_MOTION_RANGE,
+            -this._value * BOX_SIZE * 0.5,
+            this._dy * BOX_MOTION_RANGE
+          ]);
+          mat4.scale(this.matrix, this.matrix, [1.0, 1.05 - this._value, 1.0]);
+        }
+
+        _updateColor() {
+          let color = null;
+          if (this._pressed) {
+            color = [1, 0, 0, 1]; // Red
+          } else if (this._touched) {
+            color = [0.1, 0.5, 0.1, 1]; // Dark Green
+          } else {
+            color = [0.1, 0.1, 0.1, 1];  // Grey
+          }
+
+          this.renderPrimitive.uniforms.baseColorFactor.value = color;
+        }
+
+        set value(value) {
+          if (value != this._value) {
+            this._value = value;
+            this._updateTransform();
+          }
+        }
+
+        get value() {
+          return this._value;
+        }
+
+        set pressed(value) {
+          if (value != this._pressed) {
+            this._pressed = value;
+            this._updateColor();
+          }
+        }
+
+        get pressed() {
+          return this._pressed;
+        }
+
+        set touched(value) {
+          if (value != this._touched) {
+            this._touched = value;
+            this._updateColor();
+          }
+        }
+
+        get touched() {
+          return this._touched;
+        }
+
+        move(dx, dy) {
+          this._dx = dx;
+          this._dy = dy;
+          this._updateTransform();
+        }
+      }
+
+      class GamepadBoxSet extends Node {
+        constructor(buttonCount, axesCount) {
+          super();
+
+          let axesBoxCount = Math.ceil(axesCount / 2);
+          let rowLength = Math.max(buttonCount, axesBoxCount);
+
+          // Place the boxes in a horizontal line
+          this.buttonBoxes = [];
+          let hl = (rowLength - 1) * BOX_SEPARATION * 0.5;
+          for (let x = 0; x < buttonCount; ++x) {
+            let box = new GamepadBox([(x * BOX_SEPARATION) - hl, BOX_SET_HEIGHT, BOX_SET_DEPTH]);
+            this.buttonBoxes.push(box);
+            this.addNode(box);
+          }
+
+          this.axesBoxes = [];
+          for (let x = 0; x < axesBoxCount; ++x) {
+            let box = new GamepadBox([(x * BOX_SEPARATION) - hl, BOX_SET_HEIGHT, BOX_SET_DEPTH * 2]);
+            this.axesBoxes.push(box);
+            this.addNode(box);
+          }
+        }
+
+        update_state(gamepad) {
+          // The boxes associated with any given button will turn green if
+          // touched and red if pressed. The box height will also scale based
+          // on the button's value to make it appear like a button being pushed.
+          for (let i = 0; i < gamepad.buttons.length; ++i) {
+            this.buttonBoxes[i].pressed = gamepad.buttons[i].pressed;
+            this.buttonBoxes[i].value = gamepad.buttons[i].value;
+            this.buttonBoxes[i].touched = gamepad.buttons[i].touched;
+          }
+
+          // Axes are assumed to come in X/Y pairs and will wiggle the
+          // associated boxes around when moved.
+          for (let i = 0, j = 0; i < gamepad.axes.length; i+=2, ++j) {
+            this.axesBoxes[j].move(gamepad.axes[i], i + 1 < gamepad.axes.length ? gamepad.axes[i + 1] : 0);
+          }
+        }
+      }
+
+      function ProcessGamepad(gamepad, hand, pose) {
+        if (!(hand in boxTable)) {
+          boxTable[hand] = new GamepadBoxSet(gamepad.buttons.length, gamepad.axes.length);
+          scene.addNode(boxTable[hand]);
+        }
+
+        boxTable[hand].update_state(gamepad);
+
+        // Update the pose of the boxes to sync with the controller.
+        if (pose) {
+          boxTable[hand].matrix = pose.transform.matrix;
+        }
+      }
+
+      // Don't bother starting an inline session in this sample since WebXR
+      // gamepads are not available during inline sessions.
+      function initXR() {
+        xrButton = new WebXRButton({
+          onRequestSession: onRequestSession,
+          onEndSession: onEndSession
+        });
+        document.querySelector('header').appendChild(xrButton.domElement);
+
+        if (navigator.xr) {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
+            xrButton.enabled = true;
+          });
+
+          navigator.xr.requestSession('inline').then(onSessionStarted);
+        }
+      }
+
+      function initGL() {
+        if (gl)
+          return;
+
+        gl = createWebGLContext({
+          xrCompatible: true
+        });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
+
+        renderer = new Renderer(gl);
+
+        scene.setRenderer(renderer);
+        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: 'media/gltf/controller/controller.gltf'}));
+
+        addFloorBox();
+      }
+
+      function addFloorBox() {
+        let boxBuilder = new BoxBuilder();
+        boxBuilder.pushCube([0, 0, 0], floorSize);
+        let boxPrimitive = boxBuilder.finishPrimitive(renderer);
+
+        let boxMaterial = new PbrMaterial();
+        boxMaterial.baseColorFactor.value = [0.3, 0.3, 0.3, 1.0];
+        let boxRenderPrimitive = renderer.createRenderPrimitive(boxPrimitive, boxMaterial);
+
+        floorNode = new Node();
+        floorNode.addRenderPrimitive(boxRenderPrimitive);
+        floorNode.selectable = true;
+        scene.addNode(floorNode);
+        mat4.identity(floorNode.matrix);
+        mat4.translate(floorNode.matrix, floorNode.matrix, floorPosition);
+      }
+
+      function onRequestSession() {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
+          xrButton.setSession(session);
+          session.isImmersive = true;
+          onSessionStarted(session);
+        });
+      }
+
+      function onSessionStarted(session) {
+        session.addEventListener('end', () => xrButton.setSession(null));
+
+        initGL();
+
+        session.updateRenderState({
+          baseLayer : new XRWebGLLayer(session, gl)
+        });
+
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
+            xrImmersiveRefSpace = refSpace;
+          } else {
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
+          }
+          session.requestAnimationFrame(onXRFrame);
+        });
+      }
+
+      function onEndSession(session) {
+        session.end();
+      }
+
+      function onSessionEnded(event) {
+        if (event.session.isImmersive) {
+          xrButton.setSession(null);
+        }
+      }
+
+      function onXRFrame(time, frame) {
+        let session = frame.session;
+        let refSpace = session.isImmersive ?
+                         xrImmersiveRefSpace :
+                         inlineViewerHelper.referenceSpace;
+
+        let pose = frame.getViewerPose(refSpace);
+        scene.startFrame();
+        session.requestAnimationFrame(onXRFrame);
+
+        // Check for and respond to any gamepad state changes.
+        for (let source of session.inputSources) {
+          if (source.gamepad) {
+            let pose = frame.getPose(source.gripSpace, refSpace);
+            ProcessGamepad(source.gamepad, source.handedness, pose);
+          }
+        }
+
+        scene.updateInputSources(frame, refSpace);
+        scene.drawXRFrame(frame, pose);
+        scene.endFrame();
+      }
+
+      // Start the XR application.
+      initXR();
+    </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/explainer.html b/explainer.html
index df122075f..105d9f569 100644
--- a/explainer.html
+++ b/explainer.html
@@ -9,6 +9,9 @@
     <meta name='twitter:title' content='WebXR Samples Explainer'>
     <meta name='twitter:description' content='Overview of how the WebXR samples are designed'>
 
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
+
     <link rel='stylesheet' href='css/stylesheet.css'>
     <link rel='stylesheet' href='css/pygment_trac.css'>
 
diff --git a/fallback-rendering.html b/fallback-rendering.html
deleted file mode 100644
index 9f9b2d1aa..000000000
--- a/fallback-rendering.html
+++ /dev/null
@@ -1,252 +0,0 @@
-<!doctype html>
-<!--
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--->
-<html>
-  <head>
-    <meta charset='utf-8'>
-    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
-    <meta name='mobile-web-app-capable' content='yes'>
-    <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>Fallback Rendering</title>
-
-    <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
-  </head>
-  <body>
-    <header>
-      <details open>
-        <summary>Fallback Rendering</summary>
-        <p>
-          This sample demonstrates a way to fallback to rendering the scene when
-          WebXR isn't available.
-          <a class="back" href="./">Back</a>
-        </p>
-      </details>
-    </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new Gltf2Node({url: 'media/gltf/space/space.gltf'}));
-      scene.addNode(new SkyboxNode({url: 'media/textures/milky-way-4k.png'}));
-
-      let projectionMatrix = mat4.create();
-      let viewMatrix = mat4.create();
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          // If navigator.xr isn't present in the browser then we need to use
-          // the fallback rendering path.
-          initFallback();
-        }
-      }
-
-      // When we hit the fallback path, we'll need to initialize a few extra
-      // variables in order to render correctly.
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-
-        // Using a simple identity matrix for the view.
-        mat4.identity(viewMatrix);
-
-        // We need to track the canvas size in order to resize the WebGL
-        // backbuffer width and height, as well as update the projection matrix
-        // and adjust the viewport.
-        function onResize() {
-          gl.canvas.width = gl.canvas.offsetWidth * window.devicePixelRatio;
-          gl.canvas.height = gl.canvas.offsetHeight * window.devicePixelRatio;
-          mat4.perspective(projectionMatrix, Math.PI*0.4,
-                           gl.canvas.width/gl.canvas.height,
-                           0.1, 1000.0);
-          gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-        }
-        window.addEventListener('resize', onResize);
-        onResize();
-
-        // We'll kick off the render loop using the window's
-        // requestAnimationFrame function.
-        window.requestAnimationFrame(onWindowFrame);
-      }
-
-      // Since both the XR and fallback paths need to do the same WebGL
-      // initialization code, we've moved that code out to it's own function.
-      function initGL() {
-        if (gl)
-          return;
-
-        gl = createWebGLContext({
-          xrCompatible: true
-        });
-
-        renderer = new Renderer(gl);
-
-        scene.setRenderer(renderer);
-      }
-
-      function onRequestSession() {
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
-
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        session.requestAnimationFrame(onXRFrame);
-
-        scene.startFrame();
-
-        if (pose) {
-          let glLayer = session.renderState.baseLayer;
-          gl.bindFramebuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
-          gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-          for (let view of pose.views) {
-            let viewport = glLayer.getViewport(view);
-            gl.viewport(viewport.x, viewport.y,
-                        viewport.width, viewport.height);
-
-            scene.draw(view.projectionMatrix, view.viewMatrix);
-          }
-        }
-
-        scene.endFrame();
-      }
-
-      // This is the bulk of the fallback rendering loop. Notice that it looks
-      // a lot like a simplified version of the XR frame loop. Samples after
-      // this one will do some work to hide this for code readability purposes.
-      function onWindowFrame(t) {
-        window.requestAnimationFrame(onWindowFrame);
-
-        scene.startFrame();
-
-        // We can skip setting the framebuffer and viewport every frame, because
-        // it won't change from frame to frame and we're updating the viewport
-        // only when we resize for efficency.
-        gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-        // We're drawing with our own projection and view matrix now, and we 
-        // don't have a list of view to loop through, but otherwise all of the
-        // WebGL drawing logic is exactly the same.
-        scene.draw(projectionMatrix, viewMatrix);
-
-        scene.endFrame();
-      }
-
-      // Start the XR application.
-      initXR();
-      })();
-    </script>
-  </body>
-</html>
diff --git a/favicon-32x32.png b/favicon-32x32.png
index 2c6895444..c60d102c2 100644
Binary files a/favicon-32x32.png and b/favicon-32x32.png differ
diff --git a/favicon-96x96.png b/favicon-96x96.png
index 1f538066d..c004ab3bd 100644
Binary files a/favicon-96x96.png and b/favicon-96x96.png differ
diff --git a/favicon.ico b/favicon.ico
index 6f5f7be09..14ddec13c 100644
Binary files a/favicon.ico and b/favicon.ico differ
diff --git a/framebuffer-scaling.html b/framebuffer-scaling.html
index f876cf9bd..68a2f1f6d 100644
--- a/framebuffer-scaling.html
+++ b/framebuffer-scaling.html
@@ -25,26 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Framebuffer Scaling</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -69,17 +55,20 @@
     <main style='text-align: center;'>
       <p>Click 'Enter XR' to see content</p> 
     </main>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {CubeSeaNode} from './js/render/nodes/cube-sea.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       let scaleSelect = document.getElementById('framebufferScaleSelect');
       let scaleLabel = document.getElementById('framebufferScaleLabel');
@@ -110,27 +99,21 @@
       scene.addNode(new CubeSeaNode());
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
         }
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx  }).then(onSessionStarted);
+        navigator.xr.requestSession('immersive-vr').then(onSessionStarted);
       }
 
       function onSessionStarted(session) {
@@ -159,13 +142,12 @@
         // layer is created, though the UA is allowed to resize the framebuffer
         // at any time.
         let scale = parseFloat(scaleSelect.value);
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl, {
-          framebufferScaleFactor: scale
-        })});
+        session.updateRenderState({
+          baseLayer: new XRWebGLLayer(session, gl, { framebufferScaleFactor: scale })
+        });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
+        session.requestReferenceSpace('local').then((refSpace) => {
           xrRefSpace = refSpace;
-
           session.requestAnimationFrame(onXRFrame);
         });
       }
@@ -175,7 +157,6 @@
       }
 
       function onSessionEnded(event) {
-        document.body.removeChild(document.querySelector('#mirror-canvas'));
         xrButton.setSession(null);
 
         gl = null;
@@ -198,7 +179,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/xr-presentation.html b/immersive-vr-session.html
similarity index 77%
rename from xr-presentation.html
rename to immersive-vr-session.html
index 1adc81b24..6e33600aa 100644
--- a/xr-presentation.html
+++ b/immersive-vr-session.html
@@ -25,36 +25,21 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>XR Presentation</title>
+    <title>Immersive VR Session</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
       <details open>
-        <summary>XR Presentation</summary>
+        <summary>Immersive VR Session</summary>
         <p>
-          This sample demonstrates how to present a simple WebGL scene to a
-          XRDevice. The scene is not rendered to the page prior to XR
-          presentation, nor is it mirrored during presentation.
+          This sample demonstrates how to use an 'immersive-vr' XRSession to
+          present a simple WebGL scene to an XR device. The scene is not
+          rendered to the page.
           <a class="back" href="./">Back</a>
         </p>
       </details>
@@ -62,17 +47,20 @@
     <main style='text-align: center;'>
       <p>Click 'Enter XR' to see content</p> 
     </main>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
@@ -90,7 +78,7 @@
       function initXR() {
         // Adds a helper button to the page that indicates if any XRDevices are
         // available and let's the user pick between them if there's multiple.
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
@@ -100,7 +88,7 @@
         if (navigator.xr) {
           // If the device allows creation of exclusive sessions set it as the
           // target of the 'Enter XR' button.
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
         }
@@ -109,7 +97,7 @@
       // Called when the user selects a device to present to. In response we
       // will request an exclusive session from that device.
       function onRequestSession() {
-        navigator.xr.requestSession({mode: 'immersive-vr'}).then(onSessionStarted);
+        navigator.xr.requestSession('immersive-vr').then(onSessionStarted);
       }
 
       // Called when we've successfully acquired a XRSession. In response we
@@ -142,9 +130,9 @@
         session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
 
         // Get a frame of reference, which is required for querying poses. In
-        // this case an 'eye-level' frame of reference means that all poses will
+        // this case an 'local' frame of reference means that all poses will
         // be relative to the location where the XRDevice was first detected.
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
+        session.requestReferenceSpace('local').then((refSpace) => {
           xrRefSpace = refSpace;
 
           // Inform the session that we're ready to begin drawing.
@@ -211,10 +199,10 @@
             // isn't all that important. What is important is that it renders
             // into the XRWebGLLayer's framebuffer, using the viewport into that
             // framebuffer reported by the current view, and using the
-            // projection and view matricies from the current view and pose.
+            // projection matrix and view transform from the current view.
             // We bound the framebuffer and viewport up above, and are passing
             // in the appropriate matrices here to be used when rendering.
-            scene.draw(view.projectionMatrix, view.viewMatrix);
+            scene.draw(view.projectionMatrix, view.transform);
           }
         } else {
           // There's several options for handling cases where no pose is given.
@@ -236,7 +224,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/index.html b/index.html
index 8c813e3a4..579b22c34 100644
--- a/index.html
+++ b/index.html
@@ -74,14 +74,8 @@
         font-size: 0.8em;
       }
 
-      .annoying-warning {
-        background: #fdd;
-        color: red;
-        padding: 0 1em;
-        margin: 1em 0;
-        border: thick red;
-        border-style: solid;
-        border-radius: 1em;
+      .wordmark img {
+        width: 70%;
       }
     </style>
 
@@ -96,11 +90,15 @@
       <header class='header'>
         <div id='nav'>
             <a href='./' class='selected'>Samples</a>
-            <a href='proposals/'>Proposals</a>
+            <!--a href='proposals/'>Proposals</a-->
             <a href='tests/'>Test Pages</a>
         </div>
 
-        <h1><a href='' class='wordmark'><span>WebXR</span></a></h1>
+        <h1>
+          <a href='' class='wordmark'>
+            <img src='media/logo/webxr-logo.svg' alt='WebXR Logo'/>
+          </a>
+        </h1>
         <h2 class='tagline'>Sample Pages</h2>
       </header>
 
@@ -108,31 +106,15 @@ <h2 class='tagline'>Sample Pages</h2>
         <p>Sample pages demonstrating how to use various aspects of the WebXR API.<br/>
         <a href="explainer.html">Learn More</a></p>
 
-        <div class='annoying-warning'>
-          <p><b>WARNING:</b> The <a href="https://immersive-web.github.io/webxr/">WebXR Device API spec</a> is undergoing rapid development at this time.
-          These samples are not guaranteed to reflect the current state of the API or run on any browser until the specification has stablized.</p>
-
-	  <p>If the samples are not working for you, please <b>DON'T FILE BUG REPORTS</b> for this repository or in other issue trackers. This is
-          expected to happen until this notice is removed.</p>
-        </div>
-
         <script>
           let pages = [
-            { title: 'XR Presentation', category: 'Basics',
-              path: 'xr-presentation.html',
-              description: 'Demonstrates how to present a simple WebGL scene to a XRDevice.' },
+            { title: 'Immersive VR Session', category: 'Basics',
+              path: 'immersive-vr-session.html',
+              description: 'Demonstrates use of an "immersive-vr" XRSession to present a WebGL scene on an XR device.' },
 
-            { title: 'Mirroring', category: 'Basics',
-              path: 'mirroring.html',
-              description: 'Demonstrates how to mirroring exclusive session content to a canvas.' },
-
-            { title: 'Magic Window', category: 'Basics',
-              path: 'magic-window.html',
-              description: 'Demonstrates use of a non-exclusive XRSession to present "Magic Window" content.' },
-
-            { title: 'Fallback Rendering', category: 'Basics',
-              path: 'fallback-rendering.html',
-              description: 'Demonstrates a way to fallback to rendering the scene when WebXR isn\'t available..' },
+            { title: 'Inline Session', category: 'Basics',
+              path: 'inline-session.html',
+              description: 'Demonstrates use of an "inline" XRSession to present the same WebGL scene on the page and on an XR device.' },
 
             { tag: 'hr' },
             { tag: 'br' },
@@ -153,14 +135,14 @@ <h2 class='tagline'>Sample Pages</h2>
               path: 'input-selection.html',
               description: 'Demonstrates handling \'select\' events generated by XRInputSources.'},
 
+            { title: 'Controller State', category: 'Input',
+              path: 'controller-state.html',
+              description: 'Demonstrates responding to controller state from an XRInputSource\'s gamepad attribute.'},
+
             { title: 'Framebuffer Scaling', category: 'Performance',
               path: 'framebuffer-scaling.html',
               description: 'Demonstrates scaling a layer\'s framebuffer to statically control performance or quality.' },
 
-            { title: 'Viewport Scaling', category: 'Performance',
-              path: 'viewport-scaling.html',
-              description: 'Demonstrates scaling a layer\'s viewports to dynamically control performance or quality.' },
-
             { title: '360 Stereo Photos', category: 'Content',
               path: '360-photos.html',
               description: 'Demonstrates displaying a 360 degree equirectangular stereo photo.' },
@@ -177,29 +159,37 @@ <h2 class='tagline'>Sample Pages</h2>
               path: 'spectator-mode.html',
               description: 'Demonstrates rendering a 3rd person view of the scene to an external monitor.' },
 
+            { title: 'Teleportation', category: 'Advanced Techniques',
+              path: 'teleportation.html',
+              description: 'Demonstrates teleporting the viewer around the scene with getOffsetReferenceSpace().'},
+
             { tag: 'hr' },
             { tag: 'br' },
 
             { title: 'Barebones', category: 'WIN32_LEAN_AND_MEAN',
               path: 'xr-barebones.html',
-              description: 'Extremely simple use of WebXR with no library dependencies. Doesn\'t render anything exciting.' },
+              description: 'Extremely simple use of WebXR with no library dependencies. Doesn\'t render anything exciting.',
+              noPolyfill: true },
           ];
 
           let mainElement = document.getElementById("main");
 
           // Append an element for every item in the pages list.
+          let pageIndex = 0;
           for (var i = 0; i < pages.length; ++i) {
             var page = pages[i];
 
             if (page.tag) {
               mainElement.appendChild(document.createElement(page.tag));
               continue;
+            } else {
+              pageIndex++;
             }
 
             let article = document.createElement('article');
 
             let title = document.createElement('h3');
-            title.setAttribute('data-index', i + 1);
+            title.setAttribute('data-index', pageIndex);
 
             let titleLink = document.createElement('a');
             titleLink.href = page.path;
@@ -218,21 +208,18 @@ <h2 class='tagline'>Sample Pages</h2>
             let links = document.createElement('div');
             links.classList.add('links');
 
-            let liveLink = document.createElement('a');
-            liveLink.href = page.path;
-            liveLink.innerHTML = 'Open';
-            links.appendChild(liveLink);
-
-            let polyfillLink = document.createElement('a');
-            polyfillLink.href = page.path + '?allowPolyfill=1';
-            polyfillLink.innerHTML = 'Open with Polyfill';
-            links.appendChild(polyfillLink);
-
             let sourceLink = document.createElement('a');
             sourceLink.href = 'https://github.com/immersive-web/webxr-samples/blob/master/' + page.path;
             sourceLink.innerHTML = 'Source';
             links.appendChild(sourceLink);
 
+            if (!page.noPolyfill) {
+              let polyfillLink = document.createElement('a');
+              polyfillLink.href = page.path + '?usePolyfill=0';
+              polyfillLink.innerHTML = 'Run Without Polyfill';
+              links.appendChild(polyfillLink);
+            }
+
             article.appendChild(links);
 
             mainElement.appendChild(article);
diff --git a/inline-session.html b/inline-session.html
new file mode 100644
index 000000000..3a900ba89
--- /dev/null
+++ b/inline-session.html
@@ -0,0 +1,346 @@
+<!doctype html>
+<!--
+Copyright 2018 The Immersive Web Community Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-->
+<html>
+  <head>
+    <meta charset='utf-8'>
+    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
+    <meta name='mobile-web-app-capable' content='yes'>
+    <meta name='apple-mobile-web-app-capable' content='yes'>
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
+
+    <title>Inline Session</title>
+
+    <link href='css/common.css' rel='stylesheet'></link>
+  </head>
+  <body>
+    <header>
+      <details open>
+        <summary>Inline Session</summary>
+        <p>
+          This sample demonstrates use of an 'inline' XRSession to present
+          content on the page prior to entering XR presentation with an
+          immersive session. The viewer pose can be adjusted by clicking and
+          dragging with mouse or touch.
+          <a class="back" href="./">Back</a>
+          <p>
+            <input id='vertFOV' value='90' min='30' max='150' step='10' type='range'/><br/>
+            <label id='vertFOVLabel' for="vertFOV">Vertical FOV: </label>
+          </p>
+        </p>
+      </details>
+    </header>
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {mat4, vec3, quat} from './js/render/math/gl-matrix.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
+      }
+
+      // Inline sessions, by default, us a vertical field of view of 90 degrees
+      // when computing projection matrices. If an application wants to use a
+      // different FoV for inline sessions it can be specified by setting the
+      // inlineVerticalFieldOfView value in an updateRenderState call. Note that
+      // this only applies to inline sessions, and attempting to set that value
+      // for an immersive session will throw an error.
+      let inlineSession = null;
+      let fov = document.getElementById('vertFOV');
+      let fovLabel = document.getElementById('vertFOVLabel');
+      function updateFov() {
+        let value = parseFloat(fov.value);
+        // The inlineVerticalFieldOfView is specified in radians.
+        let radValue = value * (Math.PI / 180);
+
+        if (inlineSession) {
+          // As with any values set with updateRenderState, this will take
+          // effect on the next frame.
+          inlineSession.updateRenderState({
+            inlineVerticalFieldOfView: radValue
+          });
+        }
+        
+        // Set the label on the page
+        let label = `Vertical FOV: ${value} degrees`;
+        if (value == 90) {
+          label += ' (default)';
+        }
+        fovLabel.innerHTML = label;
+      }
+      fov.addEventListener('change', updateFov);
+
+      // XR globals.
+      let xrButton = null;
+      let xrImmersiveRefSpace = null;
+      let xrInlineRefSpace = null;
+
+      // WebGL scene globals.
+      let gl = null;
+      let renderer = null;
+      let scene = new Scene();
+      let solarSystem = new Gltf2Node({url: 'media/gltf/space/space.gltf'});
+      scene.addNode(solarSystem);
+      scene.addNode(new SkyboxNode({url: 'media/textures/milky-way-4k.png'}));
+
+      function initXR() {
+        xrButton = new WebXRButton({
+          onRequestSession: onRequestSession,
+          onEndSession: onEndSession
+        });
+        document.querySelector('header').appendChild(xrButton.domElement);
+
+        if (navigator.xr) {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
+            xrButton.enabled = true;
+          });
+
+          // Start up an inline session, which should always be supported on
+          // browsers that support WebXR regardless of the available hardware.
+          navigator.xr.requestSession('inline').then((session) => {
+            inlineSession = session;
+            onSessionStarted(session);
+            updateFov();
+          });
+        }
+      }
+
+      function onRequestSession() {
+        navigator.xr.requestSession('immersive-vr').then((session) => {
+          xrButton.setSession(session);
+          // Set a flag on the session so we can differentiate it from the
+          // inline session.
+          session.isImmersive = true;
+          onSessionStarted(session);
+        });
+      }
+
+      function onSessionStarted(session) {
+        session.addEventListener('end', onSessionEnded);
+
+        if (!gl) {
+          gl = createWebGLContext({
+            xrCompatible: true
+          });
+
+          // In order for an inline session to be used we must attach the WebGL
+          // canvas to the document, which will serve as the output surface for
+          // the results of the inline session's rendering.
+          document.body.appendChild(gl.canvas);
+          
+          // The canvas is synced with the window size via CSS, but we still
+          // need to update the width and height attributes in order to keep
+          // the default framebuffer resolution in-sync.
+          function onResize() {
+            gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+            gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+          }
+          window.addEventListener('resize', onResize);
+          onResize();
+
+          // Installs the listeners necessary to allow users to look around with
+          // inline sessions using the mouse or touch.
+          addInlineViewListeners(gl.canvas);
+
+          renderer = new Renderer(gl);
+
+          scene.setRenderer(renderer);
+        }
+        
+        // WebGL layers for inline sessions won't allocat their own framebuffer,
+        // which causes gl commands to naturally execute against the default
+        // framebuffer while still using the canvas dimensions to compute
+        // viewports and projection matrices.
+        let glLayer = new XRWebGLLayer(session, gl);
+
+        session.updateRenderState({
+          baseLayer: glLayer
+        });
+
+        let refSpaceType = session.isImmersive ? 'local' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          // Since we're dealing with multiple sessions now we need to track
+          // which XRReferenceSpace is associated with which XRSession.
+          if (session.isImmersive) {
+            xrImmersiveRefSpace = refSpace;
+          } else {
+            xrInlineRefSpace = refSpace;
+          }
+          session.requestAnimationFrame(onXRFrame);
+        });
+      }
+
+      function onEndSession(session) {
+        session.end();
+      }
+
+      function onSessionEnded(event) {
+        // Only reset the button when the immersive session ends.
+        if (event.session.isImmersive) {
+          xrButton.setSession(null);
+        }
+      }
+
+      // Called every time a XRSession requests that a new frame be drawn.
+      function onXRFrame(t, frame) {
+        let session = frame.session;
+        // Ensure that we're using the right frame of reference for the session.
+        let refSpace = session.isImmersive ?
+                         xrImmersiveRefSpace :
+                         xrInlineRefSpace;
+
+        // Account for the click-and-drag mouse movement or touch movement when
+        // calculating the viewer pose for inline sessions.
+        if (!session.isImmersive) {
+          refSpace = getAdjustedRefSpace(refSpace);
+        }
+
+        let pose = frame.getViewerPose(refSpace);
+
+        scene.startFrame();
+
+        session.requestAnimationFrame(onXRFrame);
+
+        if (pose) {
+          let glLayer = session.renderState.baseLayer;
+          gl.bindFramebuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
+          gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
+
+          for (let view of pose.views) {
+            let viewport = glLayer.getViewport(view);
+            gl.viewport(viewport.x, viewport.y,
+                        viewport.width, viewport.height);
+
+            scene.draw(view.projectionMatrix, view.transform);
+          }
+        }
+
+        scene.endFrame();
+      }
+
+      // Inline view adjustment code
+      // Allow the user to click and drag the mouse (or touch and drag the
+      // screen on handheld devices) to adjust the viewer pose for inline
+      // sessions. Samples after this one will hide this logic with a utility
+      // class (InlineViewerHelper).
+      let lookYaw = 0;
+      let lookPitch = 0;
+      const LOOK_SPEED = 0.0025;
+
+      // XRReferenceSpace offset is immutable, so return a new reference space
+      // that has an updated orientation.
+      function getAdjustedRefSpace(refSpace) {
+        // Represent the rotational component of the reference space as a
+        // quaternion.
+        let invOrientation = quat.create();
+        quat.rotateX(invOrientation, invOrientation, -lookPitch);
+        quat.rotateY(invOrientation, invOrientation, -lookYaw);
+        let xform = new XRRigidTransform(
+            {x: 0, y: 0, z: 0},
+            {x: invOrientation[0], y: invOrientation[1], z: invOrientation[2], w: invOrientation[3]});
+        return refSpace.getOffsetReferenceSpace(xform);
+      }
+
+      function rotateView(dx, dy) {
+        lookYaw += dx * LOOK_SPEED;
+        lookPitch += dy * LOOK_SPEED;
+        if (lookPitch < -Math.PI*0.5)
+            lookPitch = -Math.PI*0.5;
+        if (lookPitch > Math.PI*0.5)
+            lookPitch = Math.PI*0.5;
+      }
+
+      // Make the canvas listen for mouse and touch events so that we can
+      // adjust the viewer pose accordingly in inline sessions.
+      function addInlineViewListeners(canvas) {
+        canvas.addEventListener('mousemove', (event) => {
+          // Only rotate when the right button is pressed
+          if (event.buttons && 2) {
+            rotateView(event.movementX, event.movementY);
+          }
+        });
+
+        // Keep track of touch-related state so that users can touch and drag on
+        // the canvas to adjust the viewer pose in an inline session.
+        let primaryTouch = undefined;
+        let prevTouchX = undefined;
+        let prevTouchY = undefined;
+
+        // Keep track of all active touches, but only use the first touch to
+        // adjust the viewer pose.
+        canvas.addEventListener("touchstart", (event) => {
+          if (primaryTouch == undefined) {
+            let touch = event.changedTouches[0];
+            primaryTouch = touch.identifier;
+            prevTouchX = touch.pageX;
+            prevTouchY = touch.pageY;
+          }
+        });
+
+        // Update the set of active touches now that one or more touches
+        // finished. If the primary touch just finished, update the viewer pose
+        // based on the final touch movement.
+        canvas.addEventListener("touchend", (event) => {
+          for (let touch of event.changedTouches) {
+            if (primaryTouch == touch.identifier) {
+              primaryTouch = undefined;
+              rotateView(touch.pageX - prevTouchX, touch.pageY - prevTouchY);
+            }
+          }
+        });
+
+        // Update the set of active touches now that one or more touches was
+        // cancelled. Don't update the viewer pose when the primary touch was
+        // cancelled.
+        canvas.addEventListener("touchcancel", (event) => {
+          for (let touch of event.changedTouches) {
+            if (primaryTouch == touch.identifier) {
+              primaryTouch = undefined;
+            }
+          }
+        });
+
+        // Only use the delta between the most recent and previous events for
+        // the primary touch. Ignore the other touches.
+        canvas.addEventListener("touchmove", (event) => {
+          for (let touch of event.changedTouches) {
+            if (primaryTouch == touch.identifier) {
+              rotateView(touch.pageX - prevTouchX, touch.pageY - prevTouchY);
+              prevTouchX = touch.pageX;
+              prevTouchY = touch.pageY;
+            }
+          }
+        });
+      }
+
+      // Start the XR application.
+      initXR();
+    </script>
+  </body>
+</html>
diff --git a/input-selection.html b/input-selection.html
index 25742b65c..7163715b9 100644
--- a/input-selection.html
+++ b/input-selection.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Input Selection</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -58,70 +43,56 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Node} from './js/render/core/node.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {BoxBuilder} from './js/render/geometry/box-builder.js';
+      import {PbrMaterial} from './js/render/materials/pbr.js';
+      import {mat4} from './js/render/math/gl-matrix.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // Temporary
-      let hideStats = QueryArgs.getBool('hideStats', false);
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
       let renderer = null;
       let scene = new Scene();
-      if (hideStats) {
-        scene.enableStats(false);
-      }
       scene.addNode(new Gltf2Node({url: 'media/gltf/cube-room/cube-room.gltf'}));
       scene.standingStats(true);
 
       let boxes = [];
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -129,6 +100,14 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
 
         renderer = new Renderer(gl);
 
@@ -162,14 +141,11 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -183,39 +159,39 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
           }
-
           session.requestAnimationFrame(onXRFrame);
         });
       }
 
       function onSelect(ev) {
-        let refSpace = ev.frame.session.mode == "immersive-vr" ?
+        let refSpace = ev.frame.session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
 
-        let inputPose = ev.frame.getInputPose(ev.inputSource, refSpace);
-        if (!inputPose) {
+        let targetRayPose = ev.frame.getPose(ev.inputSource.targetRaySpace, refSpace);
+        if (!targetRayPose) {
           return;
         }
 
-        if (inputPose.targetRay) {
-          let hitResult = scene.hitTest(inputPose.targetRay)
-          if (hitResult) {
-            // Check to see if the hit result was one of our boxes.
-            for (let box of boxes) {
-              if (hitResult.node == box.node) {
-                // Change the box color to something random.
-                let uniforms = box.renderPrimitive.uniforms;
-                uniforms.baseColorFactor.value = [Math.random(), Math.random(), Math.random(), 1.0];
-              }
+        let hitResult = scene.hitTest(targetRayPose.transform);
+        if (hitResult) {
+          // Check to see if the hit result was one of our boxes.
+          for (let box of boxes) {
+            if (hitResult.node == box.node) {
+              // Change the box color to something random.
+              let uniforms = box.renderPrimitive.uniforms;
+              uniforms.baseColorFactor.value = [Math.random(), Math.random(), Math.random(), 1.0];
             }
           }
         }
@@ -226,17 +202,16 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function onXRFrame(time, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -265,7 +240,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/input-tracking.html b/input-tracking.html
index 4baa8b17e..bf956e0ca 100644
--- a/input-tracking.html
+++ b/input-tracking.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Input Tracking</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,22 +44,28 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {vec3} from './js/render/math/gl-matrix.js';
+      import {Ray} from './js/render/math/ray.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -85,40 +76,21 @@
       scene.standingStats(true);
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          // Note: If you don't want dragging on the canvas to do things like
-          // scroll or pull-to-refresh, you'll want to set touch-action: none;
-          // on the canvas' CSS style, which this page does in common.css
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -127,6 +99,18 @@
           xrCompatible: true
         });
 
+        // Note: If you don't want dragging on the canvas to do things like
+        // scroll or pull-to-refresh, you'll want to set touch-action: none;
+        // on the canvas' CSS style, which this page does in common.css
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
+
         renderer = new Renderer(gl);
 
         scene.setRenderer(renderer);
@@ -136,14 +120,11 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -153,15 +134,17 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
           }
-
           session.requestAnimationFrame(onXRFrame);
         });
       }
@@ -171,68 +154,68 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function updateInputSources(session, frame, refSpace) {
-        let inputSources = session.getInputSources();
-
-        for (let inputSource of inputSources) {
-          let inputPose = frame.getInputPose(inputSource, refSpace);
+        for (let inputSource of session.inputSources) {
+          let targetRayPose = frame.getPose(inputSource.targetRaySpace, refSpace);
 
           // We may not get a pose back in cases where the input source has lost
           // tracking or does not know where it is relative to the given frame
           // of reference.
-          if (!inputPose) {
+          if (!targetRayPose) {
             continue;
           }
 
-          if (inputPose.gripTransform.matrix) {
-            // If we have a grip matrix use it to render a mesh showing the
-            // position of the controller.
-            scene.inputRenderer.addController(inputPose.gripTransform.matrix);
+          if (inputSource.targetRayMode == 'tracked-pointer') {
+            // If we have a pointer matrix and the pointer origin is the users
+            // hand (as opposed to their head or the screen) use it to render
+            // a ray coming out of the input device to indicate the pointer
+            // direction.
+            scene.inputRenderer.addLaserPointer(targetRayPose.transform);
           }
 
-          if (inputPose.targetRay) {
-            if (inputSource.targetRayMode == 'tracked-pointer') {
-              // If we have a pointer matrix and the pointer origin is the users
-              // hand (as opposed to their head or the screen) use it to render
-              // a ray coming out of the input device to indicate the pointer
-              // direction.
-              scene.inputRenderer.addLaserPointer(inputPose.targetRay);
+          // If we have a pointer matrix we can also use it to render a cursor
+          // for both handheld and gaze-based input sources.
+
+          // Statically render the cursor 2 meters down the ray since we're
+          // not calculating any intersections in this sample.
+          let targetRay = new Ray(targetRayPose.transform);
+          let cursorDistance = 2.0;
+          let cursorPos = vec3.fromValues(
+              targetRay.origin.x,
+              targetRay.origin.y,
+              targetRay.origin.z
+              );
+          vec3.add(cursorPos, cursorPos, [
+              targetRay.direction.x * cursorDistance,
+              targetRay.direction.y * cursorDistance,
+              targetRay.direction.z * cursorDistance,
+              ]);
+          // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay.transformMatrix);
+
+          scene.inputRenderer.addCursor(cursorPos);
+          
+          if (inputSource.gripSpace) {
+            let gripPose = frame.getPose(inputSource.gripSpace, refSpace);
+            if (gripPose) {
+              // If we have a grip pose use it to render a mesh showing the
+              // position of the controller.
+              scene.inputRenderer.addController(gripPose.transform.matrix);
             }
-
-            // If we have a pointer matrix we can also use it to render a cursor
-            // for both handheld and gaze-based input sources.
-
-            // Statically render the cursor 2 meters down the ray since we're
-            // not calculating any intersections in this sample.
-            let cursorDistance = 2.0;
-            let cursorPos = vec3.fromValues(
-                inputPose.targetRay.origin.x,
-                inputPose.targetRay.origin.y,
-                inputPose.targetRay.origin.z
-                );
-            vec3.add(cursorPos, cursorPos, [
-                inputPose.targetRay.direction.x * cursorDistance,
-                inputPose.targetRay.direction.y * cursorDistance,
-                inputPose.targetRay.direction.z * cursorDistance,
-                ]);
-            // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay.transformMatrix);
-
-            scene.inputRenderer.addCursor(cursorPos);
           }
+          
         }
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -248,7 +231,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/js/cottontail/.eslintrc.json b/js/cottontail/.eslintrc.json
deleted file mode 100644
index d6719c99d..000000000
--- a/js/cottontail/.eslintrc.json
+++ /dev/null
@@ -1,20 +0,0 @@
-{
-  "extends": ["eslint:recommended","google"],
-  "parserOptions": {
-    "sourceType": "module"
-  },
-  "env": {
-    "browser": true,
-    "es6": true
-  },
-  "globals": {
-    "XRWebGLLayer": true
-  },
-  "rules": {
-    "max-len": [2,120],
-    "valid-jsdoc": [0, {}],
-    "require-jsdoc": [0, {}],
-    "no-console": 0,
-    "guard-for-in": 0
-  }
-}
diff --git a/js/cottontail/.gitignore b/js/cottontail/.gitignore
deleted file mode 100644
index ccb2c800f..000000000
--- a/js/cottontail/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-node_modules/
-package-lock.json
\ No newline at end of file
diff --git a/js/cottontail/LICENSE.md b/js/cottontail/LICENSE.md
deleted file mode 100644
index 3180b1bce..000000000
--- a/js/cottontail/LICENSE.md
+++ /dev/null
@@ -1,18 +0,0 @@
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
diff --git a/js/cottontail/README.md b/js/cottontail/README.md
deleted file mode 100644
index 54bb914d2..000000000
--- a/js/cottontail/README.md
+++ /dev/null
@@ -1,47 +0,0 @@
-Cottontail
-==========================================
-A simple WebGL renderering framework optimised for demonstrating WebXR concepts.
-
-Cottontail does two things well and not much else:
-
-1) Loading and Rendering GLTF 2.0 files.
-2) Optimising for WebXR-style rendering.
-
-However it explicitly goes out of it's way to NOT wrap much, if any, WebXR
-functionality. This is because arguably it's sole purpose in life is to enable
-the WebXR samples, who's sole purpose in life is to provide easy-to-follow code
-snippets demonstrating the API use and thus anything this code did to hide the
-WebXR API's direct use is counter productive.
-
-Using Cottontail for your own projects is very much not recommended, as you will
-almost certainly be better served by one of the other more popular frameworks
-out there.
-
-**About the name:** I wanted something that evoked XR imagery without being too
-heavy handed about it. The "White Rabbit" is prominent symbol in multiple peices
-of media about virtual worlds, such as the movie _The Matrix_ and the novel
-_Rainbows End_, which has a particularly heavy focus on AR/MR. So I liked the
-idea of riffing off of that. It's also nice (though unintended) bonus that the
-Daydream logo looks a bit like a stylized rabbit tail. Finally, it's based on
-some code that I started on Easter day, 2017.
-
-The real world may rest on the back of a giant tortise, but I propose
-that the virtual one is bunnies all the way down. ;)
-
-Building
---------
-Cottontail can be used directly by any browser with good JavaScript modules
-support, but to ensure widest compatibility (and shorter download times) using
-a version compiled into a single file is recommended. To build first install the
-[node.js](https://nodejs.org/en/) dependencies with:
-
-  `npm install`
-
-Then build with:
-
-  `npm run build-all`
-
-For faster development iteration you can also have the project rebuild with any
-code changes automatically by running:
-
-  `npm run watch`
diff --git a/js/cottontail/TODOs.md b/js/cottontail/TODOs.md
deleted file mode 100644
index 102aac3c3..000000000
--- a/js/cottontail/TODOs.md
+++ /dev/null
@@ -1,15 +0,0 @@
-Cottontail TODOs
-================
-
-  - Make texture upload use of `ImageBitmaps` when available
-  - Generally reduce use of GL enums at user level
-  - Clean up `Scene` logic, maybe rename to `WebXRSampleScene`?
-  - Node cloning has issues, doesn't handle renderer changes.
-
-Nice to haves
--------------
-
-  - Support GLTF skeletal animations
-  - Support Draco compression
-  - "Floaties"
-  - HTML-to-texture for captions. (SVG?)
\ No newline at end of file
diff --git a/js/cottontail/build/cottontail.debug.js b/js/cottontail/build/cottontail.debug.js
deleted file mode 100644
index fe26cdc20..000000000
--- a/js/cottontail/build/cottontail.debug.js
+++ /dev/null
@@ -1,15198 +0,0 @@
-/*!
- * Copyright 2018 The Immersive Web Community Group
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- * the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- * 
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- */
-(function webpackUniversalModuleDefinition(root, factory) {
-	if(typeof exports === 'object' && typeof module === 'object')
-		module.exports = factory();
-	else if(typeof define === 'function' && define.amd)
-		define([], factory);
-	else {
-		var a = factory();
-		for(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];
-	}
-})(window, function() {
-return /******/ (function(modules) { // webpackBootstrap
-/******/ 	// The module cache
-/******/ 	var installedModules = {};
-/******/
-/******/ 	// The require function
-/******/ 	function __webpack_require__(moduleId) {
-/******/
-/******/ 		// Check if module is in cache
-/******/ 		if(installedModules[moduleId]) {
-/******/ 			return installedModules[moduleId].exports;
-/******/ 		}
-/******/ 		// Create a new module (and put it into the cache)
-/******/ 		var module = installedModules[moduleId] = {
-/******/ 			i: moduleId,
-/******/ 			l: false,
-/******/ 			exports: {}
-/******/ 		};
-/******/
-/******/ 		// Execute the module function
-/******/ 		modules[moduleId].call(module.exports, module, module.exports, __webpack_require__);
-/******/
-/******/ 		// Flag the module as loaded
-/******/ 		module.l = true;
-/******/
-/******/ 		// Return the exports of the module
-/******/ 		return module.exports;
-/******/ 	}
-/******/
-/******/
-/******/ 	// expose the modules object (__webpack_modules__)
-/******/ 	__webpack_require__.m = modules;
-/******/
-/******/ 	// expose the module cache
-/******/ 	__webpack_require__.c = installedModules;
-/******/
-/******/ 	// define getter function for harmony exports
-/******/ 	__webpack_require__.d = function(exports, name, getter) {
-/******/ 		if(!__webpack_require__.o(exports, name)) {
-/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
-/******/ 		}
-/******/ 	};
-/******/
-/******/ 	// define __esModule on exports
-/******/ 	__webpack_require__.r = function(exports) {
-/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
-/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
-/******/ 		}
-/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
-/******/ 	};
-/******/
-/******/ 	// create a fake namespace object
-/******/ 	// mode & 1: value is a module id, require it
-/******/ 	// mode & 2: merge all properties of value into the ns
-/******/ 	// mode & 4: return value when already ns object
-/******/ 	// mode & 8|1: behave like require
-/******/ 	__webpack_require__.t = function(value, mode) {
-/******/ 		if(mode & 1) value = __webpack_require__(value);
-/******/ 		if(mode & 8) return value;
-/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
-/******/ 		var ns = Object.create(null);
-/******/ 		__webpack_require__.r(ns);
-/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
-/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
-/******/ 		return ns;
-/******/ 	};
-/******/
-/******/ 	// getDefaultExport function for compatibility with non-harmony modules
-/******/ 	__webpack_require__.n = function(module) {
-/******/ 		var getter = module && module.__esModule ?
-/******/ 			function getDefault() { return module['default']; } :
-/******/ 			function getModuleExports() { return module; };
-/******/ 		__webpack_require__.d(getter, 'a', getter);
-/******/ 		return getter;
-/******/ 	};
-/******/
-/******/ 	// Object.prototype.hasOwnProperty.call
-/******/ 	__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
-/******/
-/******/ 	// __webpack_public_path__
-/******/ 	__webpack_require__.p = "";
-/******/
-/******/
-/******/ 	// Load entry module and return exports
-/******/ 	return __webpack_require__(__webpack_require__.s = "./src/cottontail.js");
-/******/ })
-/************************************************************************/
-/******/ ({
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/common.js":
-/*!********************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/common.js ***!
-  \********************************************************/
-/*! exports provided: EPSILON, ARRAY_TYPE, RANDOM, setMatrixArrayType, toRadian, equals */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "EPSILON", function() { return EPSILON; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ARRAY_TYPE", function() { return ARRAY_TYPE; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "RANDOM", function() { return RANDOM; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setMatrixArrayType", function() { return setMatrixArrayType; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "toRadian", function() { return toRadian; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/**
- * Common utilities
- * @module glMatrix
- */
-
-// Configuration Constants
-const EPSILON = 0.000001;
-let ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;
-const RANDOM = Math.random;
-
-/**
- * Sets the type of array used when creating new vectors and matrices
- *
- * @param {Type} type Array type, such as Float32Array or Array
- */
-function setMatrixArrayType(type) {
-  ARRAY_TYPE = type;
-}
-
-const degree = Math.PI / 180;
-
-/**
- * Convert Degree To Radian
- *
- * @param {Number} a Angle in Degrees
- */
-function toRadian(a) {
-  return a * degree;
-}
-
-/**
- * Tests whether or not the arguments have approximately the same value, within an absolute
- * or relative tolerance of glMatrix.EPSILON (an absolute tolerance is used for values less
- * than or equal to 1.0, and a relative tolerance is used for larger values)
- *
- * @param {Number} a The first number to test.
- * @param {Number} b The second number to test.
- * @returns {Boolean} True if the numbers are approximately equal, false otherwise.
- */
-function equals(a, b) {
-  return Math.abs(a - b) <= EPSILON*Math.max(1.0, Math.abs(a), Math.abs(b));
-}
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/mat2.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/mat2.js ***!
-  \******************************************************/
-/*! exports provided: create, clone, copy, identity, fromValues, set, transpose, invert, adjoint, determinant, multiply, rotate, scale, fromRotation, fromScaling, str, frob, LDU, add, subtract, exactEquals, equals, multiplyScalar, multiplyScalarAndAdd, mul, sub */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transpose", function() { return transpose; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "adjoint", function() { return adjoint; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "determinant", function() { return determinant; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotate", function() { return rotate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotation", function() { return fromRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromScaling", function() { return fromScaling; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "frob", function() { return frob; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "LDU", function() { return LDU; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalar", function() { return multiplyScalar; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalarAndAdd", function() { return multiplyScalarAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 2x2 Matrix
- * @module mat2
- */
-
-/**
- * Creates a new identity mat2
- *
- * @returns {mat2} a new 2x2 matrix
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[1] = 0;
-    out[2] = 0;
-  }
-  out[0] = 1;
-  out[3] = 1;
-  return out;
-}
-
-/**
- * Creates a new mat2 initialized with values from an existing matrix
- *
- * @param {mat2} a matrix to clone
- * @returns {mat2} a new 2x2 matrix
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Copy the values from one mat2 to another
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the source matrix
- * @returns {mat2} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Set a mat2 to the identity matrix
- *
- * @param {mat2} out the receiving matrix
- * @returns {mat2} out
- */
-function identity(out) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  return out;
-}
-
-/**
- * Create a new mat2 with the given values
- *
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m10 Component in column 1, row 0 position (index 2)
- * @param {Number} m11 Component in column 1, row 1 position (index 3)
- * @returns {mat2} out A new 2x2 matrix
- */
-function fromValues(m00, m01, m10, m11) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m10;
-  out[3] = m11;
-  return out;
-}
-
-/**
- * Set the components of a mat2 to the given values
- *
- * @param {mat2} out the receiving matrix
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m10 Component in column 1, row 0 position (index 2)
- * @param {Number} m11 Component in column 1, row 1 position (index 3)
- * @returns {mat2} out
- */
-function set(out, m00, m01, m10, m11) {
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m10;
-  out[3] = m11;
-  return out;
-}
-
-/**
- * Transpose the values of a mat2
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the source matrix
- * @returns {mat2} out
- */
-function transpose(out, a) {
-  // If we are transposing ourselves we can skip a few steps but have to cache
-  // some values
-  if (out === a) {
-    let a1 = a[1];
-    out[1] = a[2];
-    out[2] = a1;
-  } else {
-    out[0] = a[0];
-    out[1] = a[2];
-    out[2] = a[1];
-    out[3] = a[3];
-  }
-
-  return out;
-}
-
-/**
- * Inverts a mat2
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the source matrix
- * @returns {mat2} out
- */
-function invert(out, a) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-
-  // Calculate the determinant
-  let det = a0 * a3 - a2 * a1;
-
-  if (!det) {
-    return null;
-  }
-  det = 1.0 / det;
-
-  out[0] =  a3 * det;
-  out[1] = -a1 * det;
-  out[2] = -a2 * det;
-  out[3] =  a0 * det;
-
-  return out;
-}
-
-/**
- * Calculates the adjugate of a mat2
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the source matrix
- * @returns {mat2} out
- */
-function adjoint(out, a) {
-  // Caching this value is nessecary if out == a
-  let a0 = a[0];
-  out[0] =  a[3];
-  out[1] = -a[1];
-  out[2] = -a[2];
-  out[3] =  a0;
-
-  return out;
-}
-
-/**
- * Calculates the determinant of a mat2
- *
- * @param {mat2} a the source matrix
- * @returns {Number} determinant of a
- */
-function determinant(a) {
-  return a[0] * a[3] - a[2] * a[1];
-}
-
-/**
- * Multiplies two mat2's
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the first operand
- * @param {mat2} b the second operand
- * @returns {mat2} out
- */
-function multiply(out, a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
-  out[0] = a0 * b0 + a2 * b1;
-  out[1] = a1 * b0 + a3 * b1;
-  out[2] = a0 * b2 + a2 * b3;
-  out[3] = a1 * b2 + a3 * b3;
-  return out;
-}
-
-/**
- * Rotates a mat2 by the given angle
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat2} out
- */
-function rotate(out, a, rad) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  out[0] = a0 *  c + a2 * s;
-  out[1] = a1 *  c + a3 * s;
-  out[2] = a0 * -s + a2 * c;
-  out[3] = a1 * -s + a3 * c;
-  return out;
-}
-
-/**
- * Scales the mat2 by the dimensions in the given vec2
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the matrix to rotate
- * @param {vec2} v the vec2 to scale the matrix by
- * @returns {mat2} out
- **/
-function scale(out, a, v) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let v0 = v[0], v1 = v[1];
-  out[0] = a0 * v0;
-  out[1] = a1 * v0;
-  out[2] = a2 * v1;
-  out[3] = a3 * v1;
-  return out;
-}
-
-/**
- * Creates a matrix from a given angle
- * This is equivalent to (but much faster than):
- *
- *     mat2.identity(dest);
- *     mat2.rotate(dest, dest, rad);
- *
- * @param {mat2} out mat2 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat2} out
- */
-function fromRotation(out, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  out[0] = c;
-  out[1] = s;
-  out[2] = -s;
-  out[3] = c;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector scaling
- * This is equivalent to (but much faster than):
- *
- *     mat2.identity(dest);
- *     mat2.scale(dest, dest, vec);
- *
- * @param {mat2} out mat2 receiving operation result
- * @param {vec2} v Scaling vector
- * @returns {mat2} out
- */
-function fromScaling(out, v) {
-  out[0] = v[0];
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = v[1];
-  return out;
-}
-
-/**
- * Returns a string representation of a mat2
- *
- * @param {mat2} a matrix to represent as a string
- * @returns {String} string representation of the matrix
- */
-function str(a) {
-  return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
-}
-
-/**
- * Returns Frobenius norm of a mat2
- *
- * @param {mat2} a the matrix to calculate Frobenius norm of
- * @returns {Number} Frobenius norm
- */
-function frob(a) {
-  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))
-}
-
-/**
- * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix
- * @param {mat2} L the lower triangular matrix
- * @param {mat2} D the diagonal matrix
- * @param {mat2} U the upper triangular matrix
- * @param {mat2} a the input matrix to factorize
- */
-
-function LDU(L, D, U, a) {
-  L[2] = a[2]/a[0];
-  U[0] = a[0];
-  U[1] = a[1];
-  U[3] = a[3] - L[2] * U[1];
-  return [L, D, U];
-}
-
-/**
- * Adds two mat2's
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the first operand
- * @param {mat2} b the second operand
- * @returns {mat2} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  return out;
-}
-
-/**
- * Subtracts matrix b from matrix a
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the first operand
- * @param {mat2} b the second operand
- * @returns {mat2} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  out[3] = a[3] - b[3];
-  return out;
-}
-
-/**
- * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
- *
- * @param {mat2} a The first matrix.
- * @param {mat2} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];
-}
-
-/**
- * Returns whether or not the matrices have approximately the same elements in the same position.
- *
- * @param {mat2} a The first matrix.
- * @param {mat2} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-          Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a3), Math.abs(b3)));
-}
-
-/**
- * Multiply each element of the matrix by a scalar.
- *
- * @param {mat2} out the receiving matrix
- * @param {mat2} a the matrix to scale
- * @param {Number} b amount to scale the matrix's elements by
- * @returns {mat2} out
- */
-function multiplyScalar(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  return out;
-}
-
-/**
- * Adds two mat2's after multiplying each element of the second operand by a scalar value.
- *
- * @param {mat2} out the receiving vector
- * @param {mat2} a the first operand
- * @param {mat2} b the second operand
- * @param {Number} scale the amount to scale b's elements by before adding
- * @returns {mat2} out
- */
-function multiplyScalarAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  out[3] = a[3] + (b[3] * scale);
-  return out;
-}
-
-/**
- * Alias for {@link mat2.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link mat2.subtract}
- * @function
- */
-const sub = subtract;
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/mat2d.js":
-/*!*******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/mat2d.js ***!
-  \*******************************************************/
-/*! exports provided: create, clone, copy, identity, fromValues, set, invert, determinant, multiply, rotate, scale, translate, fromRotation, fromScaling, fromTranslation, str, frob, add, subtract, multiplyScalar, multiplyScalarAndAdd, exactEquals, equals, mul, sub */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "determinant", function() { return determinant; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotate", function() { return rotate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "translate", function() { return translate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotation", function() { return fromRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromScaling", function() { return fromScaling; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromTranslation", function() { return fromTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "frob", function() { return frob; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalar", function() { return multiplyScalar; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalarAndAdd", function() { return multiplyScalarAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 2x3 Matrix
- * @module mat2d
- *
- * @description
- * A mat2d contains six elements defined as:
- * <pre>
- * [a, c, tx,
- *  b, d, ty]
- * </pre>
- * This is a short form for the 3x3 matrix:
- * <pre>
- * [a, c, tx,
- *  b, d, ty,
- *  0, 0, 1]
- * </pre>
- * The last row is ignored so the array is shorter and operations are faster.
- */
-
-/**
- * Creates a new identity mat2d
- *
- * @returns {mat2d} a new 2x3 matrix
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](6);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[1] = 0;
-    out[2] = 0;
-    out[4] = 0;
-    out[5] = 0;
-  }
-  out[0] = 1;
-  out[3] = 1;
-  return out;
-}
-
-/**
- * Creates a new mat2d initialized with values from an existing matrix
- *
- * @param {mat2d} a matrix to clone
- * @returns {mat2d} a new 2x3 matrix
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](6);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  return out;
-}
-
-/**
- * Copy the values from one mat2d to another
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the source matrix
- * @returns {mat2d} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  return out;
-}
-
-/**
- * Set a mat2d to the identity matrix
- *
- * @param {mat2d} out the receiving matrix
- * @returns {mat2d} out
- */
-function identity(out) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  out[4] = 0;
-  out[5] = 0;
-  return out;
-}
-
-/**
- * Create a new mat2d with the given values
- *
- * @param {Number} a Component A (index 0)
- * @param {Number} b Component B (index 1)
- * @param {Number} c Component C (index 2)
- * @param {Number} d Component D (index 3)
- * @param {Number} tx Component TX (index 4)
- * @param {Number} ty Component TY (index 5)
- * @returns {mat2d} A new mat2d
- */
-function fromValues(a, b, c, d, tx, ty) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](6);
-  out[0] = a;
-  out[1] = b;
-  out[2] = c;
-  out[3] = d;
-  out[4] = tx;
-  out[5] = ty;
-  return out;
-}
-
-/**
- * Set the components of a mat2d to the given values
- *
- * @param {mat2d} out the receiving matrix
- * @param {Number} a Component A (index 0)
- * @param {Number} b Component B (index 1)
- * @param {Number} c Component C (index 2)
- * @param {Number} d Component D (index 3)
- * @param {Number} tx Component TX (index 4)
- * @param {Number} ty Component TY (index 5)
- * @returns {mat2d} out
- */
-function set(out, a, b, c, d, tx, ty) {
-  out[0] = a;
-  out[1] = b;
-  out[2] = c;
-  out[3] = d;
-  out[4] = tx;
-  out[5] = ty;
-  return out;
-}
-
-/**
- * Inverts a mat2d
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the source matrix
- * @returns {mat2d} out
- */
-function invert(out, a) {
-  let aa = a[0], ab = a[1], ac = a[2], ad = a[3];
-  let atx = a[4], aty = a[5];
-
-  let det = aa * ad - ab * ac;
-  if(!det){
-    return null;
-  }
-  det = 1.0 / det;
-
-  out[0] = ad * det;
-  out[1] = -ab * det;
-  out[2] = -ac * det;
-  out[3] = aa * det;
-  out[4] = (ac * aty - ad * atx) * det;
-  out[5] = (ab * atx - aa * aty) * det;
-  return out;
-}
-
-/**
- * Calculates the determinant of a mat2d
- *
- * @param {mat2d} a the source matrix
- * @returns {Number} determinant of a
- */
-function determinant(a) {
-  return a[0] * a[3] - a[1] * a[2];
-}
-
-/**
- * Multiplies two mat2d's
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the first operand
- * @param {mat2d} b the second operand
- * @returns {mat2d} out
- */
-function multiply(out, a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
-  out[0] = a0 * b0 + a2 * b1;
-  out[1] = a1 * b0 + a3 * b1;
-  out[2] = a0 * b2 + a2 * b3;
-  out[3] = a1 * b2 + a3 * b3;
-  out[4] = a0 * b4 + a2 * b5 + a4;
-  out[5] = a1 * b4 + a3 * b5 + a5;
-  return out;
-}
-
-/**
- * Rotates a mat2d by the given angle
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat2d} out
- */
-function rotate(out, a, rad) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  out[0] = a0 *  c + a2 * s;
-  out[1] = a1 *  c + a3 * s;
-  out[2] = a0 * -s + a2 * c;
-  out[3] = a1 * -s + a3 * c;
-  out[4] = a4;
-  out[5] = a5;
-  return out;
-}
-
-/**
- * Scales the mat2d by the dimensions in the given vec2
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the matrix to translate
- * @param {vec2} v the vec2 to scale the matrix by
- * @returns {mat2d} out
- **/
-function scale(out, a, v) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
-  let v0 = v[0], v1 = v[1];
-  out[0] = a0 * v0;
-  out[1] = a1 * v0;
-  out[2] = a2 * v1;
-  out[3] = a3 * v1;
-  out[4] = a4;
-  out[5] = a5;
-  return out;
-}
-
-/**
- * Translates the mat2d by the dimensions in the given vec2
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the matrix to translate
- * @param {vec2} v the vec2 to translate the matrix by
- * @returns {mat2d} out
- **/
-function translate(out, a, v) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
-  let v0 = v[0], v1 = v[1];
-  out[0] = a0;
-  out[1] = a1;
-  out[2] = a2;
-  out[3] = a3;
-  out[4] = a0 * v0 + a2 * v1 + a4;
-  out[5] = a1 * v0 + a3 * v1 + a5;
-  return out;
-}
-
-/**
- * Creates a matrix from a given angle
- * This is equivalent to (but much faster than):
- *
- *     mat2d.identity(dest);
- *     mat2d.rotate(dest, dest, rad);
- *
- * @param {mat2d} out mat2d receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat2d} out
- */
-function fromRotation(out, rad) {
-  let s = Math.sin(rad), c = Math.cos(rad);
-  out[0] = c;
-  out[1] = s;
-  out[2] = -s;
-  out[3] = c;
-  out[4] = 0;
-  out[5] = 0;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector scaling
- * This is equivalent to (but much faster than):
- *
- *     mat2d.identity(dest);
- *     mat2d.scale(dest, dest, vec);
- *
- * @param {mat2d} out mat2d receiving operation result
- * @param {vec2} v Scaling vector
- * @returns {mat2d} out
- */
-function fromScaling(out, v) {
-  out[0] = v[0];
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = v[1];
-  out[4] = 0;
-  out[5] = 0;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector translation
- * This is equivalent to (but much faster than):
- *
- *     mat2d.identity(dest);
- *     mat2d.translate(dest, dest, vec);
- *
- * @param {mat2d} out mat2d receiving operation result
- * @param {vec2} v Translation vector
- * @returns {mat2d} out
- */
-function fromTranslation(out, v) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  out[4] = v[0];
-  out[5] = v[1];
-  return out;
-}
-
-/**
- * Returns a string representation of a mat2d
- *
- * @param {mat2d} a matrix to represent as a string
- * @returns {String} string representation of the matrix
- */
-function str(a) {
-  return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +
-          a[3] + ', ' + a[4] + ', ' + a[5] + ')';
-}
-
-/**
- * Returns Frobenius norm of a mat2d
- *
- * @param {mat2d} a the matrix to calculate Frobenius norm of
- * @returns {Number} Frobenius norm
- */
-function frob(a) {
-  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))
-}
-
-/**
- * Adds two mat2d's
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the first operand
- * @param {mat2d} b the second operand
- * @returns {mat2d} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  out[4] = a[4] + b[4];
-  out[5] = a[5] + b[5];
-  return out;
-}
-
-/**
- * Subtracts matrix b from matrix a
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the first operand
- * @param {mat2d} b the second operand
- * @returns {mat2d} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  out[3] = a[3] - b[3];
-  out[4] = a[4] - b[4];
-  out[5] = a[5] - b[5];
-  return out;
-}
-
-/**
- * Multiply each element of the matrix by a scalar.
- *
- * @param {mat2d} out the receiving matrix
- * @param {mat2d} a the matrix to scale
- * @param {Number} b amount to scale the matrix's elements by
- * @returns {mat2d} out
- */
-function multiplyScalar(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  out[4] = a[4] * b;
-  out[5] = a[5] * b;
-  return out;
-}
-
-/**
- * Adds two mat2d's after multiplying each element of the second operand by a scalar value.
- *
- * @param {mat2d} out the receiving vector
- * @param {mat2d} a the first operand
- * @param {mat2d} b the second operand
- * @param {Number} scale the amount to scale b's elements by before adding
- * @returns {mat2d} out
- */
-function multiplyScalarAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  out[3] = a[3] + (b[3] * scale);
-  out[4] = a[4] + (b[4] * scale);
-  out[5] = a[5] + (b[5] * scale);
-  return out;
-}
-
-/**
- * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
- *
- * @param {mat2d} a The first matrix.
- * @param {mat2d} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && a[4] === b[4] && a[5] === b[5];
-}
-
-/**
- * Returns whether or not the matrices have approximately the same elements in the same position.
- *
- * @param {mat2d} a The first matrix.
- * @param {mat2d} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-          Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
-          Math.abs(a4 - b4) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
-          Math.abs(a5 - b5) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a5), Math.abs(b5)));
-}
-
-/**
- * Alias for {@link mat2d.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link mat2d.subtract}
- * @function
- */
-const sub = subtract;
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/mat3.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/mat3.js ***!
-  \******************************************************/
-/*! exports provided: create, fromMat4, clone, copy, fromValues, set, identity, transpose, invert, adjoint, determinant, multiply, translate, rotate, scale, fromTranslation, fromRotation, fromScaling, fromMat2d, fromQuat, normalFromMat4, projection, str, frob, add, subtract, multiplyScalar, multiplyScalarAndAdd, exactEquals, equals, mul, sub */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromMat4", function() { return fromMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transpose", function() { return transpose; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "adjoint", function() { return adjoint; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "determinant", function() { return determinant; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "translate", function() { return translate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotate", function() { return rotate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromTranslation", function() { return fromTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotation", function() { return fromRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromScaling", function() { return fromScaling; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromMat2d", function() { return fromMat2d; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromQuat", function() { return fromQuat; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalFromMat4", function() { return normalFromMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "projection", function() { return projection; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "frob", function() { return frob; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalar", function() { return multiplyScalar; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalarAndAdd", function() { return multiplyScalarAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 3x3 Matrix
- * @module mat3
- */
-
-/**
- * Creates a new identity mat3
- *
- * @returns {mat3} a new 3x3 matrix
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](9);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[1] = 0;
-    out[2] = 0;
-    out[3] = 0;
-    out[5] = 0;
-    out[6] = 0;
-    out[7] = 0;
-  }
-  out[0] = 1;
-  out[4] = 1;
-  out[8] = 1;
-  return out;
-}
-
-/**
- * Copies the upper-left 3x3 values into the given mat3.
- *
- * @param {mat3} out the receiving 3x3 matrix
- * @param {mat4} a   the source 4x4 matrix
- * @returns {mat3} out
- */
-function fromMat4(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[4];
-  out[4] = a[5];
-  out[5] = a[6];
-  out[6] = a[8];
-  out[7] = a[9];
-  out[8] = a[10];
-  return out;
-}
-
-/**
- * Creates a new mat3 initialized with values from an existing matrix
- *
- * @param {mat3} a matrix to clone
- * @returns {mat3} a new 3x3 matrix
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](9);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  out[6] = a[6];
-  out[7] = a[7];
-  out[8] = a[8];
-  return out;
-}
-
-/**
- * Copy the values from one mat3 to another
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the source matrix
- * @returns {mat3} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  out[6] = a[6];
-  out[7] = a[7];
-  out[8] = a[8];
-  return out;
-}
-
-/**
- * Create a new mat3 with the given values
- *
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m02 Component in column 0, row 2 position (index 2)
- * @param {Number} m10 Component in column 1, row 0 position (index 3)
- * @param {Number} m11 Component in column 1, row 1 position (index 4)
- * @param {Number} m12 Component in column 1, row 2 position (index 5)
- * @param {Number} m20 Component in column 2, row 0 position (index 6)
- * @param {Number} m21 Component in column 2, row 1 position (index 7)
- * @param {Number} m22 Component in column 2, row 2 position (index 8)
- * @returns {mat3} A new mat3
- */
-function fromValues(m00, m01, m02, m10, m11, m12, m20, m21, m22) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](9);
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m02;
-  out[3] = m10;
-  out[4] = m11;
-  out[5] = m12;
-  out[6] = m20;
-  out[7] = m21;
-  out[8] = m22;
-  return out;
-}
-
-/**
- * Set the components of a mat3 to the given values
- *
- * @param {mat3} out the receiving matrix
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m02 Component in column 0, row 2 position (index 2)
- * @param {Number} m10 Component in column 1, row 0 position (index 3)
- * @param {Number} m11 Component in column 1, row 1 position (index 4)
- * @param {Number} m12 Component in column 1, row 2 position (index 5)
- * @param {Number} m20 Component in column 2, row 0 position (index 6)
- * @param {Number} m21 Component in column 2, row 1 position (index 7)
- * @param {Number} m22 Component in column 2, row 2 position (index 8)
- * @returns {mat3} out
- */
-function set(out, m00, m01, m02, m10, m11, m12, m20, m21, m22) {
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m02;
-  out[3] = m10;
-  out[4] = m11;
-  out[5] = m12;
-  out[6] = m20;
-  out[7] = m21;
-  out[8] = m22;
-  return out;
-}
-
-/**
- * Set a mat3 to the identity matrix
- *
- * @param {mat3} out the receiving matrix
- * @returns {mat3} out
- */
-function identity(out) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 1;
-  out[5] = 0;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 1;
-  return out;
-}
-
-/**
- * Transpose the values of a mat3
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the source matrix
- * @returns {mat3} out
- */
-function transpose(out, a) {
-  // If we are transposing ourselves we can skip a few steps but have to cache some values
-  if (out === a) {
-    let a01 = a[1], a02 = a[2], a12 = a[5];
-    out[1] = a[3];
-    out[2] = a[6];
-    out[3] = a01;
-    out[5] = a[7];
-    out[6] = a02;
-    out[7] = a12;
-  } else {
-    out[0] = a[0];
-    out[1] = a[3];
-    out[2] = a[6];
-    out[3] = a[1];
-    out[4] = a[4];
-    out[5] = a[7];
-    out[6] = a[2];
-    out[7] = a[5];
-    out[8] = a[8];
-  }
-
-  return out;
-}
-
-/**
- * Inverts a mat3
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the source matrix
- * @returns {mat3} out
- */
-function invert(out, a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2];
-  let a10 = a[3], a11 = a[4], a12 = a[5];
-  let a20 = a[6], a21 = a[7], a22 = a[8];
-
-  let b01 = a22 * a11 - a12 * a21;
-  let b11 = -a22 * a10 + a12 * a20;
-  let b21 = a21 * a10 - a11 * a20;
-
-  // Calculate the determinant
-  let det = a00 * b01 + a01 * b11 + a02 * b21;
-
-  if (!det) {
-    return null;
-  }
-  det = 1.0 / det;
-
-  out[0] = b01 * det;
-  out[1] = (-a22 * a01 + a02 * a21) * det;
-  out[2] = (a12 * a01 - a02 * a11) * det;
-  out[3] = b11 * det;
-  out[4] = (a22 * a00 - a02 * a20) * det;
-  out[5] = (-a12 * a00 + a02 * a10) * det;
-  out[6] = b21 * det;
-  out[7] = (-a21 * a00 + a01 * a20) * det;
-  out[8] = (a11 * a00 - a01 * a10) * det;
-  return out;
-}
-
-/**
- * Calculates the adjugate of a mat3
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the source matrix
- * @returns {mat3} out
- */
-function adjoint(out, a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2];
-  let a10 = a[3], a11 = a[4], a12 = a[5];
-  let a20 = a[6], a21 = a[7], a22 = a[8];
-
-  out[0] = (a11 * a22 - a12 * a21);
-  out[1] = (a02 * a21 - a01 * a22);
-  out[2] = (a01 * a12 - a02 * a11);
-  out[3] = (a12 * a20 - a10 * a22);
-  out[4] = (a00 * a22 - a02 * a20);
-  out[5] = (a02 * a10 - a00 * a12);
-  out[6] = (a10 * a21 - a11 * a20);
-  out[7] = (a01 * a20 - a00 * a21);
-  out[8] = (a00 * a11 - a01 * a10);
-  return out;
-}
-
-/**
- * Calculates the determinant of a mat3
- *
- * @param {mat3} a the source matrix
- * @returns {Number} determinant of a
- */
-function determinant(a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2];
-  let a10 = a[3], a11 = a[4], a12 = a[5];
-  let a20 = a[6], a21 = a[7], a22 = a[8];
-
-  return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);
-}
-
-/**
- * Multiplies two mat3's
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the first operand
- * @param {mat3} b the second operand
- * @returns {mat3} out
- */
-function multiply(out, a, b) {
-  let a00 = a[0], a01 = a[1], a02 = a[2];
-  let a10 = a[3], a11 = a[4], a12 = a[5];
-  let a20 = a[6], a21 = a[7], a22 = a[8];
-
-  let b00 = b[0], b01 = b[1], b02 = b[2];
-  let b10 = b[3], b11 = b[4], b12 = b[5];
-  let b20 = b[6], b21 = b[7], b22 = b[8];
-
-  out[0] = b00 * a00 + b01 * a10 + b02 * a20;
-  out[1] = b00 * a01 + b01 * a11 + b02 * a21;
-  out[2] = b00 * a02 + b01 * a12 + b02 * a22;
-
-  out[3] = b10 * a00 + b11 * a10 + b12 * a20;
-  out[4] = b10 * a01 + b11 * a11 + b12 * a21;
-  out[5] = b10 * a02 + b11 * a12 + b12 * a22;
-
-  out[6] = b20 * a00 + b21 * a10 + b22 * a20;
-  out[7] = b20 * a01 + b21 * a11 + b22 * a21;
-  out[8] = b20 * a02 + b21 * a12 + b22 * a22;
-  return out;
-}
-
-/**
- * Translate a mat3 by the given vector
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the matrix to translate
- * @param {vec2} v vector to translate by
- * @returns {mat3} out
- */
-function translate(out, a, v) {
-  let a00 = a[0], a01 = a[1], a02 = a[2],
-    a10 = a[3], a11 = a[4], a12 = a[5],
-    a20 = a[6], a21 = a[7], a22 = a[8],
-    x = v[0], y = v[1];
-
-  out[0] = a00;
-  out[1] = a01;
-  out[2] = a02;
-
-  out[3] = a10;
-  out[4] = a11;
-  out[5] = a12;
-
-  out[6] = x * a00 + y * a10 + a20;
-  out[7] = x * a01 + y * a11 + a21;
-  out[8] = x * a02 + y * a12 + a22;
-  return out;
-}
-
-/**
- * Rotates a mat3 by the given angle
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat3} out
- */
-function rotate(out, a, rad) {
-  let a00 = a[0], a01 = a[1], a02 = a[2],
-    a10 = a[3], a11 = a[4], a12 = a[5],
-    a20 = a[6], a21 = a[7], a22 = a[8],
-
-    s = Math.sin(rad),
-    c = Math.cos(rad);
-
-  out[0] = c * a00 + s * a10;
-  out[1] = c * a01 + s * a11;
-  out[2] = c * a02 + s * a12;
-
-  out[3] = c * a10 - s * a00;
-  out[4] = c * a11 - s * a01;
-  out[5] = c * a12 - s * a02;
-
-  out[6] = a20;
-  out[7] = a21;
-  out[8] = a22;
-  return out;
-};
-
-/**
- * Scales the mat3 by the dimensions in the given vec2
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the matrix to rotate
- * @param {vec2} v the vec2 to scale the matrix by
- * @returns {mat3} out
- **/
-function scale(out, a, v) {
-  let x = v[0], y = v[1];
-
-  out[0] = x * a[0];
-  out[1] = x * a[1];
-  out[2] = x * a[2];
-
-  out[3] = y * a[3];
-  out[4] = y * a[4];
-  out[5] = y * a[5];
-
-  out[6] = a[6];
-  out[7] = a[7];
-  out[8] = a[8];
-  return out;
-}
-
-/**
- * Creates a matrix from a vector translation
- * This is equivalent to (but much faster than):
- *
- *     mat3.identity(dest);
- *     mat3.translate(dest, dest, vec);
- *
- * @param {mat3} out mat3 receiving operation result
- * @param {vec2} v Translation vector
- * @returns {mat3} out
- */
-function fromTranslation(out, v) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 1;
-  out[5] = 0;
-  out[6] = v[0];
-  out[7] = v[1];
-  out[8] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from a given angle
- * This is equivalent to (but much faster than):
- *
- *     mat3.identity(dest);
- *     mat3.rotate(dest, dest, rad);
- *
- * @param {mat3} out mat3 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat3} out
- */
-function fromRotation(out, rad) {
-  let s = Math.sin(rad), c = Math.cos(rad);
-
-  out[0] = c;
-  out[1] = s;
-  out[2] = 0;
-
-  out[3] = -s;
-  out[4] = c;
-  out[5] = 0;
-
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector scaling
- * This is equivalent to (but much faster than):
- *
- *     mat3.identity(dest);
- *     mat3.scale(dest, dest, vec);
- *
- * @param {mat3} out mat3 receiving operation result
- * @param {vec2} v Scaling vector
- * @returns {mat3} out
- */
-function fromScaling(out, v) {
-  out[0] = v[0];
-  out[1] = 0;
-  out[2] = 0;
-
-  out[3] = 0;
-  out[4] = v[1];
-  out[5] = 0;
-
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 1;
-  return out;
-}
-
-/**
- * Copies the values from a mat2d into a mat3
- *
- * @param {mat3} out the receiving matrix
- * @param {mat2d} a the matrix to copy
- * @returns {mat3} out
- **/
-function fromMat2d(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = 0;
-
-  out[3] = a[2];
-  out[4] = a[3];
-  out[5] = 0;
-
-  out[6] = a[4];
-  out[7] = a[5];
-  out[8] = 1;
-  return out;
-}
-
-/**
-* Calculates a 3x3 matrix from the given quaternion
-*
-* @param {mat3} out mat3 receiving operation result
-* @param {quat} q Quaternion to create matrix from
-*
-* @returns {mat3} out
-*/
-function fromQuat(out, q) {
-  let x = q[0], y = q[1], z = q[2], w = q[3];
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-
-  let xx = x * x2;
-  let yx = y * x2;
-  let yy = y * y2;
-  let zx = z * x2;
-  let zy = z * y2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-
-  out[0] = 1 - yy - zz;
-  out[3] = yx - wz;
-  out[6] = zx + wy;
-
-  out[1] = yx + wz;
-  out[4] = 1 - xx - zz;
-  out[7] = zy - wx;
-
-  out[2] = zx - wy;
-  out[5] = zy + wx;
-  out[8] = 1 - xx - yy;
-
-  return out;
-}
-
-/**
-* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
-*
-* @param {mat3} out mat3 receiving operation result
-* @param {mat4} a Mat4 to derive the normal matrix from
-*
-* @returns {mat3} out
-*/
-function normalFromMat4(out, a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
-  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
-  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
-  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-  let b00 = a00 * a11 - a01 * a10;
-  let b01 = a00 * a12 - a02 * a10;
-  let b02 = a00 * a13 - a03 * a10;
-  let b03 = a01 * a12 - a02 * a11;
-  let b04 = a01 * a13 - a03 * a11;
-  let b05 = a02 * a13 - a03 * a12;
-  let b06 = a20 * a31 - a21 * a30;
-  let b07 = a20 * a32 - a22 * a30;
-  let b08 = a20 * a33 - a23 * a30;
-  let b09 = a21 * a32 - a22 * a31;
-  let b10 = a21 * a33 - a23 * a31;
-  let b11 = a22 * a33 - a23 * a32;
-
-  // Calculate the determinant
-  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-
-  if (!det) {
-    return null;
-  }
-  det = 1.0 / det;
-
-  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
-  out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
-  out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
-
-  out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
-  out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
-  out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
-
-  out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
-  out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
-  out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
-
-  return out;
-}
-
-/**
- * Generates a 2D projection matrix with the given bounds
- *
- * @param {mat3} out mat3 frustum matrix will be written into
- * @param {number} width Width of your gl context
- * @param {number} height Height of gl context
- * @returns {mat3} out
- */
-function projection(out, width, height) {
-    out[0] = 2 / width;
-    out[1] = 0;
-    out[2] = 0;
-    out[3] = 0;
-    out[4] = -2 / height;
-    out[5] = 0;
-    out[6] = -1;
-    out[7] = 1;
-    out[8] = 1;
-    return out;
-}
-
-/**
- * Returns a string representation of a mat3
- *
- * @param {mat3} a matrix to represent as a string
- * @returns {String} string representation of the matrix
- */
-function str(a) {
-  return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +
-          a[3] + ', ' + a[4] + ', ' + a[5] + ', ' +
-          a[6] + ', ' + a[7] + ', ' + a[8] + ')';
-}
-
-/**
- * Returns Frobenius norm of a mat3
- *
- * @param {mat3} a the matrix to calculate Frobenius norm of
- * @returns {Number} Frobenius norm
- */
-function frob(a) {
-  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))
-}
-
-/**
- * Adds two mat3's
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the first operand
- * @param {mat3} b the second operand
- * @returns {mat3} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  out[4] = a[4] + b[4];
-  out[5] = a[5] + b[5];
-  out[6] = a[6] + b[6];
-  out[7] = a[7] + b[7];
-  out[8] = a[8] + b[8];
-  return out;
-}
-
-/**
- * Subtracts matrix b from matrix a
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the first operand
- * @param {mat3} b the second operand
- * @returns {mat3} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  out[3] = a[3] - b[3];
-  out[4] = a[4] - b[4];
-  out[5] = a[5] - b[5];
-  out[6] = a[6] - b[6];
-  out[7] = a[7] - b[7];
-  out[8] = a[8] - b[8];
-  return out;
-}
-
-
-
-/**
- * Multiply each element of the matrix by a scalar.
- *
- * @param {mat3} out the receiving matrix
- * @param {mat3} a the matrix to scale
- * @param {Number} b amount to scale the matrix's elements by
- * @returns {mat3} out
- */
-function multiplyScalar(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  out[4] = a[4] * b;
-  out[5] = a[5] * b;
-  out[6] = a[6] * b;
-  out[7] = a[7] * b;
-  out[8] = a[8] * b;
-  return out;
-}
-
-/**
- * Adds two mat3's after multiplying each element of the second operand by a scalar value.
- *
- * @param {mat3} out the receiving vector
- * @param {mat3} a the first operand
- * @param {mat3} b the second operand
- * @param {Number} scale the amount to scale b's elements by before adding
- * @returns {mat3} out
- */
-function multiplyScalarAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  out[3] = a[3] + (b[3] * scale);
-  out[4] = a[4] + (b[4] * scale);
-  out[5] = a[5] + (b[5] * scale);
-  out[6] = a[6] + (b[6] * scale);
-  out[7] = a[7] + (b[7] * scale);
-  out[8] = a[8] + (b[8] * scale);
-  return out;
-}
-
-/**
- * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
- *
- * @param {mat3} a The first matrix.
- * @param {mat3} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] &&
-         a[3] === b[3] && a[4] === b[4] && a[5] === b[5] &&
-         a[6] === b[6] && a[7] === b[7] && a[8] === b[8];
-}
-
-/**
- * Returns whether or not the matrices have approximately the same elements in the same position.
- *
- * @param {mat3} a The first matrix.
- * @param {mat3} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7], a8 = a[8];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7], b8 = b[8];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-          Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
-          Math.abs(a4 - b4) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
-          Math.abs(a5 - b5) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
-          Math.abs(a6 - b6) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
-          Math.abs(a7 - b7) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&
-          Math.abs(a8 - b8) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a8), Math.abs(b8)));
-}
-
-/**
- * Alias for {@link mat3.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link mat3.subtract}
- * @function
- */
-const sub = subtract;
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/mat4.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/mat4.js ***!
-  \******************************************************/
-/*! exports provided: create, clone, copy, fromValues, set, identity, transpose, invert, adjoint, determinant, multiply, translate, scale, rotate, rotateX, rotateY, rotateZ, fromTranslation, fromScaling, fromRotation, fromXRotation, fromYRotation, fromZRotation, fromRotationTranslation, fromQuat2, getTranslation, getScaling, getRotation, fromRotationTranslationScale, fromRotationTranslationScaleOrigin, fromQuat, frustum, perspective, perspectiveFromFieldOfView, ortho, lookAt, targetTo, str, frob, add, subtract, multiplyScalar, multiplyScalarAndAdd, exactEquals, equals, mul, sub */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transpose", function() { return transpose; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "adjoint", function() { return adjoint; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "determinant", function() { return determinant; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "translate", function() { return translate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotate", function() { return rotate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateX", function() { return rotateX; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateY", function() { return rotateY; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateZ", function() { return rotateZ; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromTranslation", function() { return fromTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromScaling", function() { return fromScaling; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotation", function() { return fromRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromXRotation", function() { return fromXRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromYRotation", function() { return fromYRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromZRotation", function() { return fromZRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotationTranslation", function() { return fromRotationTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromQuat2", function() { return fromQuat2; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getTranslation", function() { return getTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getScaling", function() { return getScaling; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getRotation", function() { return getRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotationTranslationScale", function() { return fromRotationTranslationScale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotationTranslationScaleOrigin", function() { return fromRotationTranslationScaleOrigin; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromQuat", function() { return fromQuat; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "frustum", function() { return frustum; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "perspective", function() { return perspective; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "perspectiveFromFieldOfView", function() { return perspectiveFromFieldOfView; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ortho", function() { return ortho; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lookAt", function() { return lookAt; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "targetTo", function() { return targetTo; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "frob", function() { return frob; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalar", function() { return multiplyScalar; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiplyScalarAndAdd", function() { return multiplyScalarAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 4x4 Matrix<br>Format: column-major, when typed out it looks like row-major<br>The matrices are being post multiplied.
- * @module mat4
- */
-
-/**
- * Creates a new identity mat4
- *
- * @returns {mat4} a new 4x4 matrix
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](16);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[1] = 0;
-    out[2] = 0;
-    out[3] = 0;
-    out[4] = 0;
-    out[6] = 0;
-    out[7] = 0;
-    out[8] = 0;
-    out[9] = 0;
-    out[11] = 0;
-    out[12] = 0;
-    out[13] = 0;
-    out[14] = 0;
-  }
-  out[0] = 1;
-  out[5] = 1;
-  out[10] = 1;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a new mat4 initialized with values from an existing matrix
- *
- * @param {mat4} a matrix to clone
- * @returns {mat4} a new 4x4 matrix
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](16);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  out[6] = a[6];
-  out[7] = a[7];
-  out[8] = a[8];
-  out[9] = a[9];
-  out[10] = a[10];
-  out[11] = a[11];
-  out[12] = a[12];
-  out[13] = a[13];
-  out[14] = a[14];
-  out[15] = a[15];
-  return out;
-}
-
-/**
- * Copy the values from one mat4 to another
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the source matrix
- * @returns {mat4} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  out[6] = a[6];
-  out[7] = a[7];
-  out[8] = a[8];
-  out[9] = a[9];
-  out[10] = a[10];
-  out[11] = a[11];
-  out[12] = a[12];
-  out[13] = a[13];
-  out[14] = a[14];
-  out[15] = a[15];
-  return out;
-}
-
-/**
- * Create a new mat4 with the given values
- *
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m02 Component in column 0, row 2 position (index 2)
- * @param {Number} m03 Component in column 0, row 3 position (index 3)
- * @param {Number} m10 Component in column 1, row 0 position (index 4)
- * @param {Number} m11 Component in column 1, row 1 position (index 5)
- * @param {Number} m12 Component in column 1, row 2 position (index 6)
- * @param {Number} m13 Component in column 1, row 3 position (index 7)
- * @param {Number} m20 Component in column 2, row 0 position (index 8)
- * @param {Number} m21 Component in column 2, row 1 position (index 9)
- * @param {Number} m22 Component in column 2, row 2 position (index 10)
- * @param {Number} m23 Component in column 2, row 3 position (index 11)
- * @param {Number} m30 Component in column 3, row 0 position (index 12)
- * @param {Number} m31 Component in column 3, row 1 position (index 13)
- * @param {Number} m32 Component in column 3, row 2 position (index 14)
- * @param {Number} m33 Component in column 3, row 3 position (index 15)
- * @returns {mat4} A new mat4
- */
-function fromValues(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](16);
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m02;
-  out[3] = m03;
-  out[4] = m10;
-  out[5] = m11;
-  out[6] = m12;
-  out[7] = m13;
-  out[8] = m20;
-  out[9] = m21;
-  out[10] = m22;
-  out[11] = m23;
-  out[12] = m30;
-  out[13] = m31;
-  out[14] = m32;
-  out[15] = m33;
-  return out;
-}
-
-/**
- * Set the components of a mat4 to the given values
- *
- * @param {mat4} out the receiving matrix
- * @param {Number} m00 Component in column 0, row 0 position (index 0)
- * @param {Number} m01 Component in column 0, row 1 position (index 1)
- * @param {Number} m02 Component in column 0, row 2 position (index 2)
- * @param {Number} m03 Component in column 0, row 3 position (index 3)
- * @param {Number} m10 Component in column 1, row 0 position (index 4)
- * @param {Number} m11 Component in column 1, row 1 position (index 5)
- * @param {Number} m12 Component in column 1, row 2 position (index 6)
- * @param {Number} m13 Component in column 1, row 3 position (index 7)
- * @param {Number} m20 Component in column 2, row 0 position (index 8)
- * @param {Number} m21 Component in column 2, row 1 position (index 9)
- * @param {Number} m22 Component in column 2, row 2 position (index 10)
- * @param {Number} m23 Component in column 2, row 3 position (index 11)
- * @param {Number} m30 Component in column 3, row 0 position (index 12)
- * @param {Number} m31 Component in column 3, row 1 position (index 13)
- * @param {Number} m32 Component in column 3, row 2 position (index 14)
- * @param {Number} m33 Component in column 3, row 3 position (index 15)
- * @returns {mat4} out
- */
-function set(out, m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {
-  out[0] = m00;
-  out[1] = m01;
-  out[2] = m02;
-  out[3] = m03;
-  out[4] = m10;
-  out[5] = m11;
-  out[6] = m12;
-  out[7] = m13;
-  out[8] = m20;
-  out[9] = m21;
-  out[10] = m22;
-  out[11] = m23;
-  out[12] = m30;
-  out[13] = m31;
-  out[14] = m32;
-  out[15] = m33;
-  return out;
-}
-
-
-/**
- * Set a mat4 to the identity matrix
- *
- * @param {mat4} out the receiving matrix
- * @returns {mat4} out
- */
-function identity(out) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = 1;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = 1;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Transpose the values of a mat4
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the source matrix
- * @returns {mat4} out
- */
-function transpose(out, a) {
-  // If we are transposing ourselves we can skip a few steps but have to cache some values
-  if (out === a) {
-    let a01 = a[1], a02 = a[2], a03 = a[3];
-    let a12 = a[6], a13 = a[7];
-    let a23 = a[11];
-
-    out[1] = a[4];
-    out[2] = a[8];
-    out[3] = a[12];
-    out[4] = a01;
-    out[6] = a[9];
-    out[7] = a[13];
-    out[8] = a02;
-    out[9] = a12;
-    out[11] = a[14];
-    out[12] = a03;
-    out[13] = a13;
-    out[14] = a23;
-  } else {
-    out[0] = a[0];
-    out[1] = a[4];
-    out[2] = a[8];
-    out[3] = a[12];
-    out[4] = a[1];
-    out[5] = a[5];
-    out[6] = a[9];
-    out[7] = a[13];
-    out[8] = a[2];
-    out[9] = a[6];
-    out[10] = a[10];
-    out[11] = a[14];
-    out[12] = a[3];
-    out[13] = a[7];
-    out[14] = a[11];
-    out[15] = a[15];
-  }
-
-  return out;
-}
-
-/**
- * Inverts a mat4
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the source matrix
- * @returns {mat4} out
- */
-function invert(out, a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
-  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
-  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
-  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-  let b00 = a00 * a11 - a01 * a10;
-  let b01 = a00 * a12 - a02 * a10;
-  let b02 = a00 * a13 - a03 * a10;
-  let b03 = a01 * a12 - a02 * a11;
-  let b04 = a01 * a13 - a03 * a11;
-  let b05 = a02 * a13 - a03 * a12;
-  let b06 = a20 * a31 - a21 * a30;
-  let b07 = a20 * a32 - a22 * a30;
-  let b08 = a20 * a33 - a23 * a30;
-  let b09 = a21 * a32 - a22 * a31;
-  let b10 = a21 * a33 - a23 * a31;
-  let b11 = a22 * a33 - a23 * a32;
-
-  // Calculate the determinant
-  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-
-  if (!det) {
-    return null;
-  }
-  det = 1.0 / det;
-
-  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
-  out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
-  out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
-  out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
-  out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
-  out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
-  out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
-  out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
-  out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
-  out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
-  out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
-  out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
-  out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
-  out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
-  out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
-  out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
-
-  return out;
-}
-
-/**
- * Calculates the adjugate of a mat4
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the source matrix
- * @returns {mat4} out
- */
-function adjoint(out, a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
-  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
-  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
-  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-  out[0]  =  (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));
-  out[1]  = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));
-  out[2]  =  (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));
-  out[3]  = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));
-  out[4]  = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));
-  out[5]  =  (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));
-  out[6]  = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));
-  out[7]  =  (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));
-  out[8]  =  (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));
-  out[9]  = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));
-  out[10] =  (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));
-  out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));
-  out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));
-  out[13] =  (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));
-  out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));
-  out[15] =  (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));
-  return out;
-}
-
-/**
- * Calculates the determinant of a mat4
- *
- * @param {mat4} a the source matrix
- * @returns {Number} determinant of a
- */
-function determinant(a) {
-  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
-  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
-  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
-  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-  let b00 = a00 * a11 - a01 * a10;
-  let b01 = a00 * a12 - a02 * a10;
-  let b02 = a00 * a13 - a03 * a10;
-  let b03 = a01 * a12 - a02 * a11;
-  let b04 = a01 * a13 - a03 * a11;
-  let b05 = a02 * a13 - a03 * a12;
-  let b06 = a20 * a31 - a21 * a30;
-  let b07 = a20 * a32 - a22 * a30;
-  let b08 = a20 * a33 - a23 * a30;
-  let b09 = a21 * a32 - a22 * a31;
-  let b10 = a21 * a33 - a23 * a31;
-  let b11 = a22 * a33 - a23 * a32;
-
-  // Calculate the determinant
-  return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
-}
-
-/**
- * Multiplies two mat4s
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the first operand
- * @param {mat4} b the second operand
- * @returns {mat4} out
- */
-function multiply(out, a, b) {
-  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
-  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
-  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
-  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
-
-  // Cache only the current line of the second matrix
-  let b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
-  out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-  out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-  out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-  out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-  b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];
-  out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-  out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-  out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-  out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-  b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];
-  out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-  out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-  out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-  out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-
-  b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];
-  out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
-  out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
-  out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
-  out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
-  return out;
-}
-
-/**
- * Translate a mat4 by the given vector
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to translate
- * @param {vec3} v vector to translate by
- * @returns {mat4} out
- */
-function translate(out, a, v) {
-  let x = v[0], y = v[1], z = v[2];
-  let a00, a01, a02, a03;
-  let a10, a11, a12, a13;
-  let a20, a21, a22, a23;
-
-  if (a === out) {
-    out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
-    out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
-    out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
-    out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
-  } else {
-    a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
-    a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
-    a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
-
-    out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
-    out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
-    out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;
-
-    out[12] = a00 * x + a10 * y + a20 * z + a[12];
-    out[13] = a01 * x + a11 * y + a21 * z + a[13];
-    out[14] = a02 * x + a12 * y + a22 * z + a[14];
-    out[15] = a03 * x + a13 * y + a23 * z + a[15];
-  }
-
-  return out;
-}
-
-/**
- * Scales the mat4 by the dimensions in the given vec3 not using vectorization
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to scale
- * @param {vec3} v the vec3 to scale the matrix by
- * @returns {mat4} out
- **/
-function scale(out, a, v) {
-  let x = v[0], y = v[1], z = v[2];
-
-  out[0] = a[0] * x;
-  out[1] = a[1] * x;
-  out[2] = a[2] * x;
-  out[3] = a[3] * x;
-  out[4] = a[4] * y;
-  out[5] = a[5] * y;
-  out[6] = a[6] * y;
-  out[7] = a[7] * y;
-  out[8] = a[8] * z;
-  out[9] = a[9] * z;
-  out[10] = a[10] * z;
-  out[11] = a[11] * z;
-  out[12] = a[12];
-  out[13] = a[13];
-  out[14] = a[14];
-  out[15] = a[15];
-  return out;
-}
-
-/**
- * Rotates a mat4 by the given angle around the given axis
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @param {vec3} axis the axis to rotate around
- * @returns {mat4} out
- */
-function rotate(out, a, rad, axis) {
-  let x = axis[0], y = axis[1], z = axis[2];
-  let len = Math.sqrt(x * x + y * y + z * z);
-  let s, c, t;
-  let a00, a01, a02, a03;
-  let a10, a11, a12, a13;
-  let a20, a21, a22, a23;
-  let b00, b01, b02;
-  let b10, b11, b12;
-  let b20, b21, b22;
-
-  if (len < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]) { return null; }
-
-  len = 1 / len;
-  x *= len;
-  y *= len;
-  z *= len;
-
-  s = Math.sin(rad);
-  c = Math.cos(rad);
-  t = 1 - c;
-
-  a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
-  a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
-  a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
-
-  // Construct the elements of the rotation matrix
-  b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;
-  b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;
-  b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;
-
-  // Perform rotation-specific matrix multiplication
-  out[0] = a00 * b00 + a10 * b01 + a20 * b02;
-  out[1] = a01 * b00 + a11 * b01 + a21 * b02;
-  out[2] = a02 * b00 + a12 * b01 + a22 * b02;
-  out[3] = a03 * b00 + a13 * b01 + a23 * b02;
-  out[4] = a00 * b10 + a10 * b11 + a20 * b12;
-  out[5] = a01 * b10 + a11 * b11 + a21 * b12;
-  out[6] = a02 * b10 + a12 * b11 + a22 * b12;
-  out[7] = a03 * b10 + a13 * b11 + a23 * b12;
-  out[8] = a00 * b20 + a10 * b21 + a20 * b22;
-  out[9] = a01 * b20 + a11 * b21 + a21 * b22;
-  out[10] = a02 * b20 + a12 * b21 + a22 * b22;
-  out[11] = a03 * b20 + a13 * b21 + a23 * b22;
-
-  if (a !== out) { // If the source and destination differ, copy the unchanged last row
-    out[12] = a[12];
-    out[13] = a[13];
-    out[14] = a[14];
-    out[15] = a[15];
-  }
-  return out;
-}
-
-/**
- * Rotates a matrix by the given angle around the X axis
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function rotateX(out, a, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  let a10 = a[4];
-  let a11 = a[5];
-  let a12 = a[6];
-  let a13 = a[7];
-  let a20 = a[8];
-  let a21 = a[9];
-  let a22 = a[10];
-  let a23 = a[11];
-
-  if (a !== out) { // If the source and destination differ, copy the unchanged rows
-    out[0]  = a[0];
-    out[1]  = a[1];
-    out[2]  = a[2];
-    out[3]  = a[3];
-    out[12] = a[12];
-    out[13] = a[13];
-    out[14] = a[14];
-    out[15] = a[15];
-  }
-
-  // Perform axis-specific matrix multiplication
-  out[4] = a10 * c + a20 * s;
-  out[5] = a11 * c + a21 * s;
-  out[6] = a12 * c + a22 * s;
-  out[7] = a13 * c + a23 * s;
-  out[8] = a20 * c - a10 * s;
-  out[9] = a21 * c - a11 * s;
-  out[10] = a22 * c - a12 * s;
-  out[11] = a23 * c - a13 * s;
-  return out;
-}
-
-/**
- * Rotates a matrix by the given angle around the Y axis
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function rotateY(out, a, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  let a00 = a[0];
-  let a01 = a[1];
-  let a02 = a[2];
-  let a03 = a[3];
-  let a20 = a[8];
-  let a21 = a[9];
-  let a22 = a[10];
-  let a23 = a[11];
-
-  if (a !== out) { // If the source and destination differ, copy the unchanged rows
-    out[4]  = a[4];
-    out[5]  = a[5];
-    out[6]  = a[6];
-    out[7]  = a[7];
-    out[12] = a[12];
-    out[13] = a[13];
-    out[14] = a[14];
-    out[15] = a[15];
-  }
-
-  // Perform axis-specific matrix multiplication
-  out[0] = a00 * c - a20 * s;
-  out[1] = a01 * c - a21 * s;
-  out[2] = a02 * c - a22 * s;
-  out[3] = a03 * c - a23 * s;
-  out[8] = a00 * s + a20 * c;
-  out[9] = a01 * s + a21 * c;
-  out[10] = a02 * s + a22 * c;
-  out[11] = a03 * s + a23 * c;
-  return out;
-}
-
-/**
- * Rotates a matrix by the given angle around the Z axis
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to rotate
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function rotateZ(out, a, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-  let a00 = a[0];
-  let a01 = a[1];
-  let a02 = a[2];
-  let a03 = a[3];
-  let a10 = a[4];
-  let a11 = a[5];
-  let a12 = a[6];
-  let a13 = a[7];
-
-  if (a !== out) { // If the source and destination differ, copy the unchanged last row
-    out[8]  = a[8];
-    out[9]  = a[9];
-    out[10] = a[10];
-    out[11] = a[11];
-    out[12] = a[12];
-    out[13] = a[13];
-    out[14] = a[14];
-    out[15] = a[15];
-  }
-
-  // Perform axis-specific matrix multiplication
-  out[0] = a00 * c + a10 * s;
-  out[1] = a01 * c + a11 * s;
-  out[2] = a02 * c + a12 * s;
-  out[3] = a03 * c + a13 * s;
-  out[4] = a10 * c - a00 * s;
-  out[5] = a11 * c - a01 * s;
-  out[6] = a12 * c - a02 * s;
-  out[7] = a13 * c - a03 * s;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector translation
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.translate(dest, dest, vec);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {vec3} v Translation vector
- * @returns {mat4} out
- */
-function fromTranslation(out, v) {
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = 1;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = 1;
-  out[11] = 0;
-  out[12] = v[0];
-  out[13] = v[1];
-  out[14] = v[2];
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from a vector scaling
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.scale(dest, dest, vec);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {vec3} v Scaling vector
- * @returns {mat4} out
- */
-function fromScaling(out, v) {
-  out[0] = v[0];
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = v[1];
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = v[2];
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from a given angle around a given axis
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.rotate(dest, dest, rad, axis);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @param {vec3} axis the axis to rotate around
- * @returns {mat4} out
- */
-function fromRotation(out, rad, axis) {
-  let x = axis[0], y = axis[1], z = axis[2];
-  let len = Math.sqrt(x * x + y * y + z * z);
-  let s, c, t;
-
-  if (len < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]) { return null; }
-
-  len = 1 / len;
-  x *= len;
-  y *= len;
-  z *= len;
-
-  s = Math.sin(rad);
-  c = Math.cos(rad);
-  t = 1 - c;
-
-  // Perform rotation-specific matrix multiplication
-  out[0] = x * x * t + c;
-  out[1] = y * x * t + z * s;
-  out[2] = z * x * t - y * s;
-  out[3] = 0;
-  out[4] = x * y * t - z * s;
-  out[5] = y * y * t + c;
-  out[6] = z * y * t + x * s;
-  out[7] = 0;
-  out[8] = x * z * t + y * s;
-  out[9] = y * z * t - x * s;
-  out[10] = z * z * t + c;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from the given angle around the X axis
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.rotateX(dest, dest, rad);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function fromXRotation(out, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-
-  // Perform axis-specific matrix multiplication
-  out[0]  = 1;
-  out[1]  = 0;
-  out[2]  = 0;
-  out[3]  = 0;
-  out[4] = 0;
-  out[5] = c;
-  out[6] = s;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = -s;
-  out[10] = c;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from the given angle around the Y axis
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.rotateY(dest, dest, rad);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function fromYRotation(out, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-
-  // Perform axis-specific matrix multiplication
-  out[0]  = c;
-  out[1]  = 0;
-  out[2]  = -s;
-  out[3]  = 0;
-  out[4] = 0;
-  out[5] = 1;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = s;
-  out[9] = 0;
-  out[10] = c;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from the given angle around the Z axis
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.rotateZ(dest, dest, rad);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {Number} rad the angle to rotate the matrix by
- * @returns {mat4} out
- */
-function fromZRotation(out, rad) {
-  let s = Math.sin(rad);
-  let c = Math.cos(rad);
-
-  // Perform axis-specific matrix multiplication
-  out[0]  = c;
-  out[1]  = s;
-  out[2]  = 0;
-  out[3]  = 0;
-  out[4] = -s;
-  out[5] = c;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = 1;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Creates a matrix from a quaternion rotation and vector translation
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.translate(dest, vec);
- *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
- *     mat4.multiply(dest, quatMat);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
- * @param {vec3} v Translation vector
- * @returns {mat4} out
- */
-function fromRotationTranslation(out, q, v) {
-  // Quaternion math
-  let x = q[0], y = q[1], z = q[2], w = q[3];
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-
-  let xx = x * x2;
-  let xy = x * y2;
-  let xz = x * z2;
-  let yy = y * y2;
-  let yz = y * z2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-
-  out[0] = 1 - (yy + zz);
-  out[1] = xy + wz;
-  out[2] = xz - wy;
-  out[3] = 0;
-  out[4] = xy - wz;
-  out[5] = 1 - (xx + zz);
-  out[6] = yz + wx;
-  out[7] = 0;
-  out[8] = xz + wy;
-  out[9] = yz - wx;
-  out[10] = 1 - (xx + yy);
-  out[11] = 0;
-  out[12] = v[0];
-  out[13] = v[1];
-  out[14] = v[2];
-  out[15] = 1;
-
-  return out;
-}
-
-/**
- * Creates a new mat4 from a dual quat.
- *
- * @param {mat4} out Matrix
- * @param {quat2} a Dual Quaternion
- * @returns {mat4} mat4 receiving operation result
- */
-function fromQuat2(out, a) {
-  let translation = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](3);
-  let bx = -a[0], by = -a[1], bz = -a[2], bw = a[3],
-  ax = a[4], ay = a[5], az = a[6], aw = a[7];
-
-  let magnitude = bx * bx + by * by + bz * bz + bw * bw;
-  //Only scale if it makes sense
-  if (magnitude > 0) {
-    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2 / magnitude;
-    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2 / magnitude;
-    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2 / magnitude;
-  } else {
-    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;
-    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;
-    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;
-  }
-  fromRotationTranslation(out, a, translation);
-  return out;
-}
-
-/**
- * Returns the translation vector component of a transformation
- *  matrix. If a matrix is built with fromRotationTranslation,
- *  the returned vector will be the same as the translation vector
- *  originally supplied.
- * @param  {vec3} out Vector to receive translation component
- * @param  {mat4} mat Matrix to be decomposed (input)
- * @return {vec3} out
- */
-function getTranslation(out, mat) {
-  out[0] = mat[12];
-  out[1] = mat[13];
-  out[2] = mat[14];
-
-  return out;
-}
-
-/**
- * Returns the scaling factor component of a transformation
- *  matrix. If a matrix is built with fromRotationTranslationScale
- *  with a normalized Quaternion paramter, the returned vector will be
- *  the same as the scaling vector
- *  originally supplied.
- * @param  {vec3} out Vector to receive scaling factor component
- * @param  {mat4} mat Matrix to be decomposed (input)
- * @return {vec3} out
- */
-function getScaling(out, mat) {
-  let m11 = mat[0];
-  let m12 = mat[1];
-  let m13 = mat[2];
-  let m21 = mat[4];
-  let m22 = mat[5];
-  let m23 = mat[6];
-  let m31 = mat[8];
-  let m32 = mat[9];
-  let m33 = mat[10];
-
-  out[0] = Math.sqrt(m11 * m11 + m12 * m12 + m13 * m13);
-  out[1] = Math.sqrt(m21 * m21 + m22 * m22 + m23 * m23);
-  out[2] = Math.sqrt(m31 * m31 + m32 * m32 + m33 * m33);
-
-  return out;
-}
-
-/**
- * Returns a quaternion representing the rotational component
- *  of a transformation matrix. If a matrix is built with
- *  fromRotationTranslation, the returned quaternion will be the
- *  same as the quaternion originally supplied.
- * @param {quat} out Quaternion to receive the rotation component
- * @param {mat4} mat Matrix to be decomposed (input)
- * @return {quat} out
- */
-function getRotation(out, mat) {
-  // Algorithm taken from http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
-  let trace = mat[0] + mat[5] + mat[10];
-  let S = 0;
-
-  if (trace > 0) {
-    S = Math.sqrt(trace + 1.0) * 2;
-    out[3] = 0.25 * S;
-    out[0] = (mat[6] - mat[9]) / S;
-    out[1] = (mat[8] - mat[2]) / S;
-    out[2] = (mat[1] - mat[4]) / S;
-  } else if ((mat[0] > mat[5]) && (mat[0] > mat[10])) {
-    S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2;
-    out[3] = (mat[6] - mat[9]) / S;
-    out[0] = 0.25 * S;
-    out[1] = (mat[1] + mat[4]) / S;
-    out[2] = (mat[8] + mat[2]) / S;
-  } else if (mat[5] > mat[10]) {
-    S = Math.sqrt(1.0 + mat[5] - mat[0] - mat[10]) * 2;
-    out[3] = (mat[8] - mat[2]) / S;
-    out[0] = (mat[1] + mat[4]) / S;
-    out[1] = 0.25 * S;
-    out[2] = (mat[6] + mat[9]) / S;
-  } else {
-    S = Math.sqrt(1.0 + mat[10] - mat[0] - mat[5]) * 2;
-    out[3] = (mat[1] - mat[4]) / S;
-    out[0] = (mat[8] + mat[2]) / S;
-    out[1] = (mat[6] + mat[9]) / S;
-    out[2] = 0.25 * S;
-  }
-
-  return out;
-}
-
-/**
- * Creates a matrix from a quaternion rotation, vector translation and vector scale
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.translate(dest, vec);
- *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
- *     mat4.multiply(dest, quatMat);
- *     mat4.scale(dest, scale)
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
- * @param {vec3} v Translation vector
- * @param {vec3} s Scaling vector
- * @returns {mat4} out
- */
-function fromRotationTranslationScale(out, q, v, s) {
-  // Quaternion math
-  let x = q[0], y = q[1], z = q[2], w = q[3];
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-
-  let xx = x * x2;
-  let xy = x * y2;
-  let xz = x * z2;
-  let yy = y * y2;
-  let yz = y * z2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-  let sx = s[0];
-  let sy = s[1];
-  let sz = s[2];
-
-  out[0] = (1 - (yy + zz)) * sx;
-  out[1] = (xy + wz) * sx;
-  out[2] = (xz - wy) * sx;
-  out[3] = 0;
-  out[4] = (xy - wz) * sy;
-  out[5] = (1 - (xx + zz)) * sy;
-  out[6] = (yz + wx) * sy;
-  out[7] = 0;
-  out[8] = (xz + wy) * sz;
-  out[9] = (yz - wx) * sz;
-  out[10] = (1 - (xx + yy)) * sz;
-  out[11] = 0;
-  out[12] = v[0];
-  out[13] = v[1];
-  out[14] = v[2];
-  out[15] = 1;
-
-  return out;
-}
-
-/**
- * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin
- * This is equivalent to (but much faster than):
- *
- *     mat4.identity(dest);
- *     mat4.translate(dest, vec);
- *     mat4.translate(dest, origin);
- *     let quatMat = mat4.create();
- *     quat4.toMat4(quat, quatMat);
- *     mat4.multiply(dest, quatMat);
- *     mat4.scale(dest, scale)
- *     mat4.translate(dest, negativeOrigin);
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {quat4} q Rotation quaternion
- * @param {vec3} v Translation vector
- * @param {vec3} s Scaling vector
- * @param {vec3} o The origin vector around which to scale and rotate
- * @returns {mat4} out
- */
-function fromRotationTranslationScaleOrigin(out, q, v, s, o) {
-  // Quaternion math
-  let x = q[0], y = q[1], z = q[2], w = q[3];
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-
-  let xx = x * x2;
-  let xy = x * y2;
-  let xz = x * z2;
-  let yy = y * y2;
-  let yz = y * z2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-
-  let sx = s[0];
-  let sy = s[1];
-  let sz = s[2];
-
-  let ox = o[0];
-  let oy = o[1];
-  let oz = o[2];
-
-  let out0 = (1 - (yy + zz)) * sx;
-  let out1 = (xy + wz) * sx;
-  let out2 = (xz - wy) * sx;
-  let out4 = (xy - wz) * sy;
-  let out5 = (1 - (xx + zz)) * sy;
-  let out6 = (yz + wx) * sy;
-  let out8 = (xz + wy) * sz;
-  let out9 = (yz - wx) * sz;
-  let out10 = (1 - (xx + yy)) * sz;
-
-  out[0] = out0;
-  out[1] = out1;
-  out[2] = out2;
-  out[3] = 0;
-  out[4] = out4;
-  out[5] = out5;
-  out[6] = out6;
-  out[7] = 0;
-  out[8] = out8;
-  out[9] = out9;
-  out[10] = out10;
-  out[11] = 0;
-  out[12] = v[0] + ox - (out0 * ox + out4 * oy + out8 * oz);
-  out[13] = v[1] + oy - (out1 * ox + out5 * oy + out9 * oz);
-  out[14] = v[2] + oz - (out2 * ox + out6 * oy + out10 * oz);
-  out[15] = 1;
-
-  return out;
-}
-
-/**
- * Calculates a 4x4 matrix from the given quaternion
- *
- * @param {mat4} out mat4 receiving operation result
- * @param {quat} q Quaternion to create matrix from
- *
- * @returns {mat4} out
- */
-function fromQuat(out, q) {
-  let x = q[0], y = q[1], z = q[2], w = q[3];
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-
-  let xx = x * x2;
-  let yx = y * x2;
-  let yy = y * y2;
-  let zx = z * x2;
-  let zy = z * y2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-
-  out[0] = 1 - yy - zz;
-  out[1] = yx + wz;
-  out[2] = zx - wy;
-  out[3] = 0;
-
-  out[4] = yx - wz;
-  out[5] = 1 - xx - zz;
-  out[6] = zy + wx;
-  out[7] = 0;
-
-  out[8] = zx + wy;
-  out[9] = zy - wx;
-  out[10] = 1 - xx - yy;
-  out[11] = 0;
-
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
-  out[15] = 1;
-
-  return out;
-}
-
-/**
- * Generates a frustum matrix with the given bounds
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {Number} left Left bound of the frustum
- * @param {Number} right Right bound of the frustum
- * @param {Number} bottom Bottom bound of the frustum
- * @param {Number} top Top bound of the frustum
- * @param {Number} near Near bound of the frustum
- * @param {Number} far Far bound of the frustum
- * @returns {mat4} out
- */
-function frustum(out, left, right, bottom, top, near, far) {
-  let rl = 1 / (right - left);
-  let tb = 1 / (top - bottom);
-  let nf = 1 / (near - far);
-  out[0] = (near * 2) * rl;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = (near * 2) * tb;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = (right + left) * rl;
-  out[9] = (top + bottom) * tb;
-  out[10] = (far + near) * nf;
-  out[11] = -1;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = (far * near * 2) * nf;
-  out[15] = 0;
-  return out;
-}
-
-/**
- * Generates a perspective projection matrix with the given bounds.
- * Passing null/undefined/no value for far will generate infinite projection matrix.
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {number} fovy Vertical field of view in radians
- * @param {number} aspect Aspect ratio. typically viewport width/height
- * @param {number} near Near bound of the frustum
- * @param {number} far Far bound of the frustum, can be null or Infinity
- * @returns {mat4} out
- */
-function perspective(out, fovy, aspect, near, far) {
-  let f = 1.0 / Math.tan(fovy / 2), nf;
-  out[0] = f / aspect;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = f;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[11] = -1;
-  out[12] = 0;
-  out[13] = 0;
-  out[15] = 0;
-  if (far != null && far !== Infinity) {
-    nf = 1 / (near - far);
-    out[10] = (far + near) * nf;
-    out[14] = (2 * far * near) * nf;
-  } else {
-    out[10] = -1;
-    out[14] = -2 * near;
-  }
-  return out;
-}
-
-/**
- * Generates a perspective projection matrix with the given field of view.
- * This is primarily useful for generating projection matrices to be used
- * with the still experiemental WebVR API.
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {Object} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees
- * @param {number} near Near bound of the frustum
- * @param {number} far Far bound of the frustum
- * @returns {mat4} out
- */
-function perspectiveFromFieldOfView(out, fov, near, far) {
-  let upTan = Math.tan(fov.upDegrees * Math.PI/180.0);
-  let downTan = Math.tan(fov.downDegrees * Math.PI/180.0);
-  let leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0);
-  let rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0);
-  let xScale = 2.0 / (leftTan + rightTan);
-  let yScale = 2.0 / (upTan + downTan);
-
-  out[0] = xScale;
-  out[1] = 0.0;
-  out[2] = 0.0;
-  out[3] = 0.0;
-  out[4] = 0.0;
-  out[5] = yScale;
-  out[6] = 0.0;
-  out[7] = 0.0;
-  out[8] = -((leftTan - rightTan) * xScale * 0.5);
-  out[9] = ((upTan - downTan) * yScale * 0.5);
-  out[10] = far / (near - far);
-  out[11] = -1.0;
-  out[12] = 0.0;
-  out[13] = 0.0;
-  out[14] = (far * near) / (near - far);
-  out[15] = 0.0;
-  return out;
-}
-
-/**
- * Generates a orthogonal projection matrix with the given bounds
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {number} left Left bound of the frustum
- * @param {number} right Right bound of the frustum
- * @param {number} bottom Bottom bound of the frustum
- * @param {number} top Top bound of the frustum
- * @param {number} near Near bound of the frustum
- * @param {number} far Far bound of the frustum
- * @returns {mat4} out
- */
-function ortho(out, left, right, bottom, top, near, far) {
-  let lr = 1 / (left - right);
-  let bt = 1 / (bottom - top);
-  let nf = 1 / (near - far);
-  out[0] = -2 * lr;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
-  out[5] = -2 * bt;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
-  out[10] = 2 * nf;
-  out[11] = 0;
-  out[12] = (left + right) * lr;
-  out[13] = (top + bottom) * bt;
-  out[14] = (far + near) * nf;
-  out[15] = 1;
-  return out;
-}
-
-/**
- * Generates a look-at matrix with the given eye position, focal point, and up axis.
- * If you want a matrix that actually makes an object look at another object, you should use targetTo instead.
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {vec3} eye Position of the viewer
- * @param {vec3} center Point the viewer is looking at
- * @param {vec3} up vec3 pointing up
- * @returns {mat4} out
- */
-function lookAt(out, eye, center, up) {
-  let x0, x1, x2, y0, y1, y2, z0, z1, z2, len;
-  let eyex = eye[0];
-  let eyey = eye[1];
-  let eyez = eye[2];
-  let upx = up[0];
-  let upy = up[1];
-  let upz = up[2];
-  let centerx = center[0];
-  let centery = center[1];
-  let centerz = center[2];
-
-  if (Math.abs(eyex - centerx) < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] &&
-      Math.abs(eyey - centery) < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] &&
-      Math.abs(eyez - centerz) < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]) {
-    return identity(out);
-  }
-
-  z0 = eyex - centerx;
-  z1 = eyey - centery;
-  z2 = eyez - centerz;
-
-  len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);
-  z0 *= len;
-  z1 *= len;
-  z2 *= len;
-
-  x0 = upy * z2 - upz * z1;
-  x1 = upz * z0 - upx * z2;
-  x2 = upx * z1 - upy * z0;
-  len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);
-  if (!len) {
-    x0 = 0;
-    x1 = 0;
-    x2 = 0;
-  } else {
-    len = 1 / len;
-    x0 *= len;
-    x1 *= len;
-    x2 *= len;
-  }
-
-  y0 = z1 * x2 - z2 * x1;
-  y1 = z2 * x0 - z0 * x2;
-  y2 = z0 * x1 - z1 * x0;
-
-  len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);
-  if (!len) {
-    y0 = 0;
-    y1 = 0;
-    y2 = 0;
-  } else {
-    len = 1 / len;
-    y0 *= len;
-    y1 *= len;
-    y2 *= len;
-  }
-
-  out[0] = x0;
-  out[1] = y0;
-  out[2] = z0;
-  out[3] = 0;
-  out[4] = x1;
-  out[5] = y1;
-  out[6] = z1;
-  out[7] = 0;
-  out[8] = x2;
-  out[9] = y2;
-  out[10] = z2;
-  out[11] = 0;
-  out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);
-  out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);
-  out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);
-  out[15] = 1;
-
-  return out;
-}
-
-/**
- * Generates a matrix that makes something look at something else.
- *
- * @param {mat4} out mat4 frustum matrix will be written into
- * @param {vec3} eye Position of the viewer
- * @param {vec3} center Point the viewer is looking at
- * @param {vec3} up vec3 pointing up
- * @returns {mat4} out
- */
-function targetTo(out, eye, target, up) {
-  let eyex = eye[0],
-      eyey = eye[1],
-      eyez = eye[2],
-      upx = up[0],
-      upy = up[1],
-      upz = up[2];
-
-  let z0 = eyex - target[0],
-      z1 = eyey - target[1],
-      z2 = eyez - target[2];
-
-  let len = z0*z0 + z1*z1 + z2*z2;
-  if (len > 0) {
-    len = 1 / Math.sqrt(len);
-    z0 *= len;
-    z1 *= len;
-    z2 *= len;
-  }
-
-  let x0 = upy * z2 - upz * z1,
-      x1 = upz * z0 - upx * z2,
-      x2 = upx * z1 - upy * z0;
-
-  len = x0*x0 + x1*x1 + x2*x2;
-  if (len > 0) {
-    len = 1 / Math.sqrt(len);
-    x0 *= len;
-    x1 *= len;
-    x2 *= len;
-  }
-
-  out[0] = x0;
-  out[1] = x1;
-  out[2] = x2;
-  out[3] = 0;
-  out[4] = z1 * x2 - z2 * x1;
-  out[5] = z2 * x0 - z0 * x2;
-  out[6] = z0 * x1 - z1 * x0;
-  out[7] = 0;
-  out[8] = z0;
-  out[9] = z1;
-  out[10] = z2;
-  out[11] = 0;
-  out[12] = eyex;
-  out[13] = eyey;
-  out[14] = eyez;
-  out[15] = 1;
-  return out;
-};
-
-/**
- * Returns a string representation of a mat4
- *
- * @param {mat4} a matrix to represent as a string
- * @returns {String} string representation of the matrix
- */
-function str(a) {
-  return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
-          a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +
-          a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' +
-          a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';
-}
-
-/**
- * Returns Frobenius norm of a mat4
- *
- * @param {mat4} a the matrix to calculate Frobenius norm of
- * @returns {Number} Frobenius norm
- */
-function frob(a) {
-  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))
-}
-
-/**
- * Adds two mat4's
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the first operand
- * @param {mat4} b the second operand
- * @returns {mat4} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  out[4] = a[4] + b[4];
-  out[5] = a[5] + b[5];
-  out[6] = a[6] + b[6];
-  out[7] = a[7] + b[7];
-  out[8] = a[8] + b[8];
-  out[9] = a[9] + b[9];
-  out[10] = a[10] + b[10];
-  out[11] = a[11] + b[11];
-  out[12] = a[12] + b[12];
-  out[13] = a[13] + b[13];
-  out[14] = a[14] + b[14];
-  out[15] = a[15] + b[15];
-  return out;
-}
-
-/**
- * Subtracts matrix b from matrix a
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the first operand
- * @param {mat4} b the second operand
- * @returns {mat4} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  out[3] = a[3] - b[3];
-  out[4] = a[4] - b[4];
-  out[5] = a[5] - b[5];
-  out[6] = a[6] - b[6];
-  out[7] = a[7] - b[7];
-  out[8] = a[8] - b[8];
-  out[9] = a[9] - b[9];
-  out[10] = a[10] - b[10];
-  out[11] = a[11] - b[11];
-  out[12] = a[12] - b[12];
-  out[13] = a[13] - b[13];
-  out[14] = a[14] - b[14];
-  out[15] = a[15] - b[15];
-  return out;
-}
-
-/**
- * Multiply each element of the matrix by a scalar.
- *
- * @param {mat4} out the receiving matrix
- * @param {mat4} a the matrix to scale
- * @param {Number} b amount to scale the matrix's elements by
- * @returns {mat4} out
- */
-function multiplyScalar(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  out[4] = a[4] * b;
-  out[5] = a[5] * b;
-  out[6] = a[6] * b;
-  out[7] = a[7] * b;
-  out[8] = a[8] * b;
-  out[9] = a[9] * b;
-  out[10] = a[10] * b;
-  out[11] = a[11] * b;
-  out[12] = a[12] * b;
-  out[13] = a[13] * b;
-  out[14] = a[14] * b;
-  out[15] = a[15] * b;
-  return out;
-}
-
-/**
- * Adds two mat4's after multiplying each element of the second operand by a scalar value.
- *
- * @param {mat4} out the receiving vector
- * @param {mat4} a the first operand
- * @param {mat4} b the second operand
- * @param {Number} scale the amount to scale b's elements by before adding
- * @returns {mat4} out
- */
-function multiplyScalarAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  out[3] = a[3] + (b[3] * scale);
-  out[4] = a[4] + (b[4] * scale);
-  out[5] = a[5] + (b[5] * scale);
-  out[6] = a[6] + (b[6] * scale);
-  out[7] = a[7] + (b[7] * scale);
-  out[8] = a[8] + (b[8] * scale);
-  out[9] = a[9] + (b[9] * scale);
-  out[10] = a[10] + (b[10] * scale);
-  out[11] = a[11] + (b[11] * scale);
-  out[12] = a[12] + (b[12] * scale);
-  out[13] = a[13] + (b[13] * scale);
-  out[14] = a[14] + (b[14] * scale);
-  out[15] = a[15] + (b[15] * scale);
-  return out;
-}
-
-/**
- * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
- *
- * @param {mat4} a The first matrix.
- * @param {mat4} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&
-         a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7] &&
-         a[8] === b[8] && a[9] === b[9] && a[10] === b[10] && a[11] === b[11] &&
-         a[12] === b[12] && a[13] === b[13] && a[14] === b[14] && a[15] === b[15];
-}
-
-/**
- * Returns whether or not the matrices have approximately the same elements in the same position.
- *
- * @param {mat4} a The first matrix.
- * @param {mat4} b The second matrix.
- * @returns {Boolean} True if the matrices are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0  = a[0],  a1  = a[1],  a2  = a[2],  a3  = a[3];
-  let a4  = a[4],  a5  = a[5],  a6  = a[6],  a7  = a[7];
-  let a8  = a[8],  a9  = a[9],  a10 = a[10], a11 = a[11];
-  let a12 = a[12], a13 = a[13], a14 = a[14], a15 = a[15];
-
-  let b0  = b[0],  b1  = b[1],  b2  = b[2],  b3  = b[3];
-  let b4  = b[4],  b5  = b[5],  b6  = b[6],  b7  = b[7];
-  let b8  = b[8],  b9  = b[9],  b10 = b[10], b11 = b[11];
-  let b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15];
-
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-          Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
-          Math.abs(a4 - b4) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
-          Math.abs(a5 - b5) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
-          Math.abs(a6 - b6) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
-          Math.abs(a7 - b7) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&
-          Math.abs(a8 - b8) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a8), Math.abs(b8)) &&
-          Math.abs(a9 - b9) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a9), Math.abs(b9)) &&
-          Math.abs(a10 - b10) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a10), Math.abs(b10)) &&
-          Math.abs(a11 - b11) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a11), Math.abs(b11)) &&
-          Math.abs(a12 - b12) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a12), Math.abs(b12)) &&
-          Math.abs(a13 - b13) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a13), Math.abs(b13)) &&
-          Math.abs(a14 - b14) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a14), Math.abs(b14)) &&
-          Math.abs(a15 - b15) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a15), Math.abs(b15)));
-}
-
-/**
- * Alias for {@link mat4.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link mat4.subtract}
- * @function
- */
-const sub = subtract;
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/quat.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/quat.js ***!
-  \******************************************************/
-/*! exports provided: create, identity, setAxisAngle, getAxisAngle, multiply, rotateX, rotateY, rotateZ, calculateW, slerp, random, invert, conjugate, fromMat3, fromEuler, str, clone, fromValues, copy, set, add, mul, scale, dot, lerp, length, len, squaredLength, sqrLen, normalize, exactEquals, equals, rotationTo, sqlerp, setAxes */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setAxisAngle", function() { return setAxisAngle; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getAxisAngle", function() { return getAxisAngle; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateX", function() { return rotateX; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateY", function() { return rotateY; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateZ", function() { return rotateZ; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "calculateW", function() { return calculateW; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "slerp", function() { return slerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "random", function() { return random; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "conjugate", function() { return conjugate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromMat3", function() { return fromMat3; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromEuler", function() { return fromEuler; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dot", function() { return dot; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lerp", function() { return lerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "length", function() { return length; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "len", function() { return len; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredLength", function() { return squaredLength; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrLen", function() { return sqrLen; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalize", function() { return normalize; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotationTo", function() { return rotationTo; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqlerp", function() { return sqlerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setAxes", function() { return setAxes; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-/* harmony import */ var _mat3_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./mat3.js */ "./node_modules/gl-matrix/src/gl-matrix/mat3.js");
-/* harmony import */ var _vec3_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./vec3.js */ "./node_modules/gl-matrix/src/gl-matrix/vec3.js");
-/* harmony import */ var _vec4_js__WEBPACK_IMPORTED_MODULE_3__ = __webpack_require__(/*! ./vec4.js */ "./node_modules/gl-matrix/src/gl-matrix/vec4.js");
-
-
-
-
-
-/**
- * Quaternion
- * @module quat
- */
-
-/**
- * Creates a new identity quat
- *
- * @returns {quat} a new quaternion
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[0] = 0;
-    out[1] = 0;
-    out[2] = 0;
-  }
-  out[3] = 1;
-  return out;
-}
-
-/**
- * Set a quat to the identity quaternion
- *
- * @param {quat} out the receiving quaternion
- * @returns {quat} out
- */
-function identity(out) {
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  return out;
-}
-
-/**
- * Sets a quat from the given angle and rotation axis,
- * then returns it.
- *
- * @param {quat} out the receiving quaternion
- * @param {vec3} axis the axis around which to rotate
- * @param {Number} rad the angle in radians
- * @returns {quat} out
- **/
-function setAxisAngle(out, axis, rad) {
-  rad = rad * 0.5;
-  let s = Math.sin(rad);
-  out[0] = s * axis[0];
-  out[1] = s * axis[1];
-  out[2] = s * axis[2];
-  out[3] = Math.cos(rad);
-  return out;
-}
-
-/**
- * Gets the rotation axis and angle for a given
- *  quaternion. If a quaternion is created with
- *  setAxisAngle, this method will return the same
- *  values as providied in the original parameter list
- *  OR functionally equivalent values.
- * Example: The quaternion formed by axis [0, 0, 1] and
- *  angle -90 is the same as the quaternion formed by
- *  [0, 0, 1] and 270. This method favors the latter.
- * @param  {vec3} out_axis  Vector receiving the axis of rotation
- * @param  {quat} q     Quaternion to be decomposed
- * @return {Number}     Angle, in radians, of the rotation
- */
-function getAxisAngle(out_axis, q) {
-  let rad = Math.acos(q[3]) * 2.0;
-  let s = Math.sin(rad / 2.0);
-  if (s > _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]) {
-    out_axis[0] = q[0] / s;
-    out_axis[1] = q[1] / s;
-    out_axis[2] = q[2] / s;
-  } else {
-    // If s is zero, return any axis (no rotation - axis does not matter)
-    out_axis[0] = 1;
-    out_axis[1] = 0;
-    out_axis[2] = 0;
-  }
-  return rad;
-}
-
-/**
- * Multiplies two quat's
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @returns {quat} out
- */
-function multiply(out, a, b) {
-  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
-  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
-
-  out[0] = ax * bw + aw * bx + ay * bz - az * by;
-  out[1] = ay * bw + aw * by + az * bx - ax * bz;
-  out[2] = az * bw + aw * bz + ax * by - ay * bx;
-  out[3] = aw * bw - ax * bx - ay * by - az * bz;
-  return out;
-}
-
-/**
- * Rotates a quaternion by the given angle about the X axis
- *
- * @param {quat} out quat receiving operation result
- * @param {quat} a quat to rotate
- * @param {number} rad angle (in radians) to rotate
- * @returns {quat} out
- */
-function rotateX(out, a, rad) {
-  rad *= 0.5;
-
-  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
-  let bx = Math.sin(rad), bw = Math.cos(rad);
-
-  out[0] = ax * bw + aw * bx;
-  out[1] = ay * bw + az * bx;
-  out[2] = az * bw - ay * bx;
-  out[3] = aw * bw - ax * bx;
-  return out;
-}
-
-/**
- * Rotates a quaternion by the given angle about the Y axis
- *
- * @param {quat} out quat receiving operation result
- * @param {quat} a quat to rotate
- * @param {number} rad angle (in radians) to rotate
- * @returns {quat} out
- */
-function rotateY(out, a, rad) {
-  rad *= 0.5;
-
-  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
-  let by = Math.sin(rad), bw = Math.cos(rad);
-
-  out[0] = ax * bw - az * by;
-  out[1] = ay * bw + aw * by;
-  out[2] = az * bw + ax * by;
-  out[3] = aw * bw - ay * by;
-  return out;
-}
-
-/**
- * Rotates a quaternion by the given angle about the Z axis
- *
- * @param {quat} out quat receiving operation result
- * @param {quat} a quat to rotate
- * @param {number} rad angle (in radians) to rotate
- * @returns {quat} out
- */
-function rotateZ(out, a, rad) {
-  rad *= 0.5;
-
-  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
-  let bz = Math.sin(rad), bw = Math.cos(rad);
-
-  out[0] = ax * bw + ay * bz;
-  out[1] = ay * bw - ax * bz;
-  out[2] = az * bw + aw * bz;
-  out[3] = aw * bw - az * bz;
-  return out;
-}
-
-/**
- * Calculates the W component of a quat from the X, Y, and Z components.
- * Assumes that quaternion is 1 unit in length.
- * Any existing W component will be ignored.
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a quat to calculate W component of
- * @returns {quat} out
- */
-function calculateW(out, a) {
-  let x = a[0], y = a[1], z = a[2];
-
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
-  out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));
-  return out;
-}
-
-/**
- * Performs a spherical linear interpolation between two quat
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {quat} out
- */
-function slerp(out, a, b, t) {
-  // benchmarks:
-  //    http://jsperf.com/quaternion-slerp-implementations
-  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
-  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
-
-  let omega, cosom, sinom, scale0, scale1;
-
-  // calc cosine
-  cosom = ax * bx + ay * by + az * bz + aw * bw;
-  // adjust signs (if necessary)
-  if ( cosom < 0.0 ) {
-    cosom = -cosom;
-    bx = - bx;
-    by = - by;
-    bz = - bz;
-    bw = - bw;
-  }
-  // calculate coefficients
-  if ( (1.0 - cosom) > _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] ) {
-    // standard case (slerp)
-    omega  = Math.acos(cosom);
-    sinom  = Math.sin(omega);
-    scale0 = Math.sin((1.0 - t) * omega) / sinom;
-    scale1 = Math.sin(t * omega) / sinom;
-  } else {
-    // "from" and "to" quaternions are very close
-    //  ... so we can do a linear interpolation
-    scale0 = 1.0 - t;
-    scale1 = t;
-  }
-  // calculate final values
-  out[0] = scale0 * ax + scale1 * bx;
-  out[1] = scale0 * ay + scale1 * by;
-  out[2] = scale0 * az + scale1 * bz;
-  out[3] = scale0 * aw + scale1 * bw;
-
-  return out;
-}
-
-/**
- * Generates a random quaternion
- *
- * @param {quat} out the receiving quaternion
- * @returns {quat} out
- */
-function random(out) {
-  // Implementation of http://planning.cs.uiuc.edu/node198.html
-  // TODO: Calling random 3 times is probably not the fastest solution
-  let u1 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]();
-  let u2 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]();
-  let u3 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]();
-
-  let sqrt1MinusU1 = Math.sqrt(1 - u1);
-  let sqrtU1 = Math.sqrt(u1);
-
-  out[0] = sqrt1MinusU1 * Math.sin(2.0 * Math.PI * u2);
-  out[1] = sqrt1MinusU1 * Math.cos(2.0 * Math.PI * u2);
-  out[2] = sqrtU1 * Math.sin(2.0 * Math.PI * u3);
-  out[3] = sqrtU1 * Math.cos(2.0 * Math.PI * u3);
-  return out;
-}
-
-/**
- * Calculates the inverse of a quat
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a quat to calculate inverse of
- * @returns {quat} out
- */
-function invert(out, a) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let dot = a0*a0 + a1*a1 + a2*a2 + a3*a3;
-  let invDot = dot ? 1.0/dot : 0;
-
-  // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0
-
-  out[0] = -a0*invDot;
-  out[1] = -a1*invDot;
-  out[2] = -a2*invDot;
-  out[3] = a3*invDot;
-  return out;
-}
-
-/**
- * Calculates the conjugate of a quat
- * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a quat to calculate conjugate of
- * @returns {quat} out
- */
-function conjugate(out, a) {
-  out[0] = -a[0];
-  out[1] = -a[1];
-  out[2] = -a[2];
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Creates a quaternion from the given 3x3 rotation matrix.
- *
- * NOTE: The resultant quaternion is not normalized, so you should be sure
- * to renormalize the quaternion yourself where necessary.
- *
- * @param {quat} out the receiving quaternion
- * @param {mat3} m rotation matrix
- * @returns {quat} out
- * @function
- */
-function fromMat3(out, m) {
-  // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes
-  // article "Quaternion Calculus and Fast Animation".
-  let fTrace = m[0] + m[4] + m[8];
-  let fRoot;
-
-  if ( fTrace > 0.0 ) {
-    // |w| > 1/2, may as well choose w > 1/2
-    fRoot = Math.sqrt(fTrace + 1.0);  // 2w
-    out[3] = 0.5 * fRoot;
-    fRoot = 0.5/fRoot;  // 1/(4w)
-    out[0] = (m[5]-m[7])*fRoot;
-    out[1] = (m[6]-m[2])*fRoot;
-    out[2] = (m[1]-m[3])*fRoot;
-  } else {
-    // |w| <= 1/2
-    let i = 0;
-    if ( m[4] > m[0] )
-      i = 1;
-    if ( m[8] > m[i*3+i] )
-      i = 2;
-    let j = (i+1)%3;
-    let k = (i+2)%3;
-
-    fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);
-    out[i] = 0.5 * fRoot;
-    fRoot = 0.5 / fRoot;
-    out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;
-    out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;
-    out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;
-  }
-
-  return out;
-}
-
-/**
- * Creates a quaternion from the given euler angle x, y, z.
- *
- * @param {quat} out the receiving quaternion
- * @param {x} Angle to rotate around X axis in degrees.
- * @param {y} Angle to rotate around Y axis in degrees.
- * @param {z} Angle to rotate around Z axis in degrees.
- * @returns {quat} out
- * @function
- */
-function fromEuler(out, x, y, z) {
-    let halfToRad = 0.5 * Math.PI / 180.0;
-    x *= halfToRad;
-    y *= halfToRad;
-    z *= halfToRad;
-
-    let sx = Math.sin(x);
-    let cx = Math.cos(x);
-    let sy = Math.sin(y);
-    let cy = Math.cos(y);
-    let sz = Math.sin(z);
-    let cz = Math.cos(z);
-
-    out[0] = sx * cy * cz - cx * sy * sz;
-    out[1] = cx * sy * cz + sx * cy * sz;
-    out[2] = cx * cy * sz - sx * sy * cz;
-    out[3] = cx * cy * cz + sx * sy * sz;
-
-    return out;
-}
-
-/**
- * Returns a string representation of a quatenion
- *
- * @param {quat} a vector to represent as a string
- * @returns {String} string representation of the vector
- */
-function str(a) {
-  return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
-}
-
-/**
- * Creates a new quat initialized with values from an existing quaternion
- *
- * @param {quat} a quaternion to clone
- * @returns {quat} a new quaternion
- * @function
- */
-const clone = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["clone"];
-
-/**
- * Creates a new quat initialized with the given values
- *
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @param {Number} w W component
- * @returns {quat} a new quaternion
- * @function
- */
-const fromValues = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["fromValues"];
-
-/**
- * Copy the values from one quat to another
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the source quaternion
- * @returns {quat} out
- * @function
- */
-const copy = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["copy"];
-
-/**
- * Set the components of a quat to the given values
- *
- * @param {quat} out the receiving quaternion
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @param {Number} w W component
- * @returns {quat} out
- * @function
- */
-const set = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["set"];
-
-/**
- * Adds two quat's
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @returns {quat} out
- * @function
- */
-const add = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["add"];
-
-/**
- * Alias for {@link quat.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Scales a quat by a scalar number
- *
- * @param {quat} out the receiving vector
- * @param {quat} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {quat} out
- * @function
- */
-const scale = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["scale"];
-
-/**
- * Calculates the dot product of two quat's
- *
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @returns {Number} dot product of a and b
- * @function
- */
-const dot = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["dot"];
-
-/**
- * Performs a linear interpolation between two quat's
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {quat} out
- * @function
- */
-const lerp = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["lerp"];
-
-/**
- * Calculates the length of a quat
- *
- * @param {quat} a vector to calculate length of
- * @returns {Number} length of a
- */
-const length = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["length"];
-
-/**
- * Alias for {@link quat.length}
- * @function
- */
-const len = length;
-
-/**
- * Calculates the squared length of a quat
- *
- * @param {quat} a vector to calculate squared length of
- * @returns {Number} squared length of a
- * @function
- */
-const squaredLength = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["squaredLength"];
-
-/**
- * Alias for {@link quat.squaredLength}
- * @function
- */
-const sqrLen = squaredLength;
-
-/**
- * Normalize a quat
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a quaternion to normalize
- * @returns {quat} out
- * @function
- */
-const normalize = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["normalize"];
-
-/**
- * Returns whether or not the quaternions have exactly the same elements in the same position (when compared with ===)
- *
- * @param {quat} a The first quaternion.
- * @param {quat} b The second quaternion.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-const exactEquals = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["exactEquals"];
-
-/**
- * Returns whether or not the quaternions have approximately the same elements in the same position.
- *
- * @param {quat} a The first vector.
- * @param {quat} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-const equals = _vec4_js__WEBPACK_IMPORTED_MODULE_3__["equals"];
-
-/**
- * Sets a quaternion to represent the shortest rotation from one
- * vector to another.
- *
- * Both vectors are assumed to be unit length.
- *
- * @param {quat} out the receiving quaternion.
- * @param {vec3} a the initial vector
- * @param {vec3} b the destination vector
- * @returns {quat} out
- */
-const rotationTo = (function() {
-  let tmpvec3 = _vec3_js__WEBPACK_IMPORTED_MODULE_2__["create"]();
-  let xUnitVec3 = _vec3_js__WEBPACK_IMPORTED_MODULE_2__["fromValues"](1,0,0);
-  let yUnitVec3 = _vec3_js__WEBPACK_IMPORTED_MODULE_2__["fromValues"](0,1,0);
-
-  return function(out, a, b) {
-    let dot = _vec3_js__WEBPACK_IMPORTED_MODULE_2__["dot"](a, b);
-    if (dot < -0.999999) {
-      _vec3_js__WEBPACK_IMPORTED_MODULE_2__["cross"](tmpvec3, xUnitVec3, a);
-      if (_vec3_js__WEBPACK_IMPORTED_MODULE_2__["len"](tmpvec3) < 0.000001)
-        _vec3_js__WEBPACK_IMPORTED_MODULE_2__["cross"](tmpvec3, yUnitVec3, a);
-      _vec3_js__WEBPACK_IMPORTED_MODULE_2__["normalize"](tmpvec3, tmpvec3);
-      setAxisAngle(out, tmpvec3, Math.PI);
-      return out;
-    } else if (dot > 0.999999) {
-      out[0] = 0;
-      out[1] = 0;
-      out[2] = 0;
-      out[3] = 1;
-      return out;
-    } else {
-      _vec3_js__WEBPACK_IMPORTED_MODULE_2__["cross"](tmpvec3, a, b);
-      out[0] = tmpvec3[0];
-      out[1] = tmpvec3[1];
-      out[2] = tmpvec3[2];
-      out[3] = 1 + dot;
-      return normalize(out, out);
-    }
-  };
-})();
-
-/**
- * Performs a spherical linear interpolation with two control points
- *
- * @param {quat} out the receiving quaternion
- * @param {quat} a the first operand
- * @param {quat} b the second operand
- * @param {quat} c the third operand
- * @param {quat} d the fourth operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {quat} out
- */
-const sqlerp = (function () {
-  let temp1 = create();
-  let temp2 = create();
-
-  return function (out, a, b, c, d, t) {
-    slerp(temp1, a, d, t);
-    slerp(temp2, b, c, t);
-    slerp(out, temp1, temp2, 2 * t * (1 - t));
-
-    return out;
-  };
-}());
-
-/**
- * Sets the specified quaternion with values corresponding to the given
- * axes. Each axis is a vec3 and is expected to be unit length and
- * perpendicular to all other specified axes.
- *
- * @param {vec3} view  the vector representing the viewing direction
- * @param {vec3} right the vector representing the local "right" direction
- * @param {vec3} up    the vector representing the local "up" direction
- * @returns {quat} out
- */
-const setAxes = (function() {
-  let matr = _mat3_js__WEBPACK_IMPORTED_MODULE_1__["create"]();
-
-  return function(out, view, right, up) {
-    matr[0] = right[0];
-    matr[3] = right[1];
-    matr[6] = right[2];
-
-    matr[1] = up[0];
-    matr[4] = up[1];
-    matr[7] = up[2];
-
-    matr[2] = -view[0];
-    matr[5] = -view[1];
-    matr[8] = -view[2];
-
-    return normalize(out, fromMat3(out, matr));
-  };
-})();
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/quat2.js":
-/*!*******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/quat2.js ***!
-  \*******************************************************/
-/*! exports provided: create, clone, fromValues, fromRotationTranslationValues, fromRotationTranslation, fromTranslation, fromRotation, fromMat4, copy, identity, set, getReal, getDual, setReal, setDual, getTranslation, translate, rotateX, rotateY, rotateZ, rotateByQuatAppend, rotateByQuatPrepend, rotateAroundAxis, add, multiply, mul, scale, dot, lerp, invert, conjugate, length, len, squaredLength, sqrLen, normalize, str, exactEquals, equals */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotationTranslationValues", function() { return fromRotationTranslationValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotationTranslation", function() { return fromRotationTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromTranslation", function() { return fromTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromRotation", function() { return fromRotation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromMat4", function() { return fromMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "identity", function() { return identity; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getReal", function() { return getReal; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getDual", function() { return getDual; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setReal", function() { return setReal; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "setDual", function() { return setDual; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "getTranslation", function() { return getTranslation; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "translate", function() { return translate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateX", function() { return rotateX; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateY", function() { return rotateY; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateZ", function() { return rotateZ; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateByQuatAppend", function() { return rotateByQuatAppend; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateByQuatPrepend", function() { return rotateByQuatPrepend; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateAroundAxis", function() { return rotateAroundAxis; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dot", function() { return dot; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lerp", function() { return lerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "invert", function() { return invert; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "conjugate", function() { return conjugate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "length", function() { return length; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "len", function() { return len; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredLength", function() { return squaredLength; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrLen", function() { return sqrLen; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalize", function() { return normalize; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-/* harmony import */ var _quat_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(/*! ./quat.js */ "./node_modules/gl-matrix/src/gl-matrix/quat.js");
-/* harmony import */ var _mat4_js__WEBPACK_IMPORTED_MODULE_2__ = __webpack_require__(/*! ./mat4.js */ "./node_modules/gl-matrix/src/gl-matrix/mat4.js");
-
-
-
-
-/**
- * Dual Quaternion<br>
- * Format: [real, dual]<br>
- * Quaternion format: XYZW<br>
- * Make sure to have normalized dual quaternions, otherwise the functions may not work as intended.<br>
- * @module quat2
- */
-
-
-/**
- * Creates a new identity dual quat
- *
- * @returns {quat2} a new dual quaternion [real -> rotation, dual -> translation]
- */
-function create() {
-  let dq = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](8);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    dq[0] = 0;
-    dq[1] = 0;
-    dq[2] = 0;
-    dq[4] = 0;
-    dq[5] = 0;
-    dq[6] = 0;
-    dq[7] = 0;
-  }
-  dq[3] = 1;
-  return dq;
-}
-
-/**
- * Creates a new quat initialized with values from an existing quaternion
- *
- * @param {quat2} a dual quaternion to clone
- * @returns {quat2} new dual quaternion
- * @function
- */
-function clone(a) {
-  let dq = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](8);
-  dq[0] = a[0];
-  dq[1] = a[1];
-  dq[2] = a[2];
-  dq[3] = a[3];
-  dq[4] = a[4];
-  dq[5] = a[5];
-  dq[6] = a[6];
-  dq[7] = a[7];
-  return dq;
-}
-
-/**
- * Creates a new dual quat initialized with the given values
- *
- * @param {Number} x1 X component
- * @param {Number} y1 Y component
- * @param {Number} z1 Z component
- * @param {Number} w1 W component
- * @param {Number} x2 X component
- * @param {Number} y2 Y component
- * @param {Number} z2 Z component
- * @param {Number} w2 W component
- * @returns {quat2} new dual quaternion
- * @function
- */
-function fromValues(x1, y1, z1, w1, x2, y2, z2, w2) {
-  let dq = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](8);
-  dq[0] = x1;
-  dq[1] = y1;
-  dq[2] = z1;
-  dq[3] = w1;
-  dq[4] = x2;
-  dq[5] = y2;
-  dq[6] = z2;
-  dq[7] = w2;
-  return dq;
-}
-
-/**
- * Creates a new dual quat from the given values (quat and translation)
- *
- * @param {Number} x1 X component
- * @param {Number} y1 Y component
- * @param {Number} z1 Z component
- * @param {Number} w1 W component
- * @param {Number} x2 X component (translation)
- * @param {Number} y2 Y component (translation)
- * @param {Number} z2 Z component (translation)
- * @returns {quat2} new dual quaternion
- * @function
- */
-function fromRotationTranslationValues(x1, y1, z1, w1, x2, y2, z2) {
-  let dq = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](8);
-  dq[0] = x1;
-  dq[1] = y1;
-  dq[2] = z1;
-  dq[3] = w1;
-  let ax = x2 * 0.5,
-    ay = y2 * 0.5,
-    az = z2 * 0.5;
-  dq[4] = ax * w1 + ay * z1 - az * y1;
-  dq[5] = ay * w1 + az * x1 - ax * z1;
-  dq[6] = az * w1 + ax * y1 - ay * x1;
-  dq[7] = -ax * x1 - ay * y1 - az * z1;
-  return dq;
-}
-
-/**
- * Creates a dual quat from a quaternion and a translation
- *
- * @param {quat2} dual quaternion receiving operation result
- * @param {quat} q quaternion
- * @param {vec3} t tranlation vector
- * @returns {quat2} dual quaternion receiving operation result
- * @function
- */
-function fromRotationTranslation(out, q, t) {
-  let ax = t[0] * 0.5,
-    ay = t[1] * 0.5,
-    az = t[2] * 0.5,
-    bx = q[0],
-    by = q[1],
-    bz = q[2],
-    bw = q[3];
-  out[0] = bx;
-  out[1] = by;
-  out[2] = bz;
-  out[3] = bw;
-  out[4] = ax * bw + ay * bz - az * by;
-  out[5] = ay * bw + az * bx - ax * bz;
-  out[6] = az * bw + ax * by - ay * bx;
-  out[7] = -ax * bx - ay * by - az * bz;
-  return out;
-}
-
-/**
- * Creates a dual quat from a translation
- *
- * @param {quat2} dual quaternion receiving operation result
- * @param {vec3} t translation vector
- * @returns {quat2} dual quaternion receiving operation result
- * @function
- */
-function fromTranslation(out, t) {
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  out[4] = t[0] * 0.5;
-  out[5] = t[1] * 0.5;
-  out[6] = t[2] * 0.5;
-  out[7] = 0;
-  return out;
-}
-
-/**
- * Creates a dual quat from a quaternion
- *
- * @param {quat2} dual quaternion receiving operation result
- * @param {quat} q the quaternion
- * @returns {quat2} dual quaternion receiving operation result
- * @function
- */
-function fromRotation(out, q) {
-  out[0] = q[0];
-  out[1] = q[1];
-  out[2] = q[2];
-  out[3] = q[3];
-  out[4] = 0;
-  out[5] = 0;
-  out[6] = 0;
-  out[7] = 0;
-  return out;
-}
-
-/**
- * Creates a new dual quat from a matrix (4x4)
- *
- * @param {quat2} out the dual quaternion
- * @param {mat4} a the matrix
- * @returns {quat2} dual quat receiving operation result
- * @function
- */
-function fromMat4(out, a) {
-  //TODO Optimize this
-  let outer = _quat_js__WEBPACK_IMPORTED_MODULE_1__["create"]();
-  _mat4_js__WEBPACK_IMPORTED_MODULE_2__["getRotation"](outer, a);
-  let t = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](3);
-  _mat4_js__WEBPACK_IMPORTED_MODULE_2__["getTranslation"](t, a);
-  fromRotationTranslation(out, outer, t);
-  return out;
-}
-
-/**
- * Copy the values from one dual quat to another
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the source dual quaternion
- * @returns {quat2} out
- * @function
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  out[4] = a[4];
-  out[5] = a[5];
-  out[6] = a[6];
-  out[7] = a[7];
-  return out;
-}
-
-/**
- * Set a dual quat to the identity dual quaternion
- *
- * @param {quat2} out the receiving quaternion
- * @returns {quat2} out
- */
-function identity(out) {
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  out[4] = 0;
-  out[5] = 0;
-  out[6] = 0;
-  out[7] = 0;
-  return out;
-}
-
-/**
- * Set the components of a dual quat to the given values
- *
- * @param {quat2} out the receiving quaternion
- * @param {Number} x1 X component
- * @param {Number} y1 Y component
- * @param {Number} z1 Z component
- * @param {Number} w1 W component
- * @param {Number} x2 X component
- * @param {Number} y2 Y component
- * @param {Number} z2 Z component
- * @param {Number} w2 W component
- * @returns {quat2} out
- * @function
- */
-function set(out, x1, y1, z1, w1, x2, y2, z2, w2) {
-  out[0] = x1;
-  out[1] = y1;
-  out[2] = z1;
-  out[3] = w1;
-
-  out[4] = x2;
-  out[5] = y2;
-  out[6] = z2;
-  out[7] = w2;
-  return out;
-}
-
-/**
- * Gets the real part of a dual quat
- * @param  {quat} out real part
- * @param  {quat2} a Dual Quaternion
- * @return {quat} real part
- */
-const getReal = _quat_js__WEBPACK_IMPORTED_MODULE_1__["copy"];
-
-/**
- * Gets the dual part of a dual quat
- * @param  {quat} out dual part
- * @param  {quat2} a Dual Quaternion
- * @return {quat} dual part
- */
-function getDual(out, a) {
-  out[0] = a[4];
-  out[1] = a[5];
-  out[2] = a[6];
-  out[3] = a[7];
-  return out;
-}
-
-/**
- * Set the real component of a dual quat to the given quaternion
- *
- * @param {quat2} out the receiving quaternion
- * @param {quat} q a quaternion representing the real part
- * @returns {quat2} out
- * @function
- */
-const setReal = _quat_js__WEBPACK_IMPORTED_MODULE_1__["copy"];
-
-/**
- * Set the dual component of a dual quat to the given quaternion
- *
- * @param {quat2} out the receiving quaternion
- * @param {quat} q a quaternion representing the dual part
- * @returns {quat2} out
- * @function
- */
-function setDual(out, q) {
-  out[4] = q[0];
-  out[5] = q[1];
-  out[6] = q[2];
-  out[7] = q[3];
-  return out;
-}
-
-/**
- * Gets the translation of a normalized dual quat
- * @param  {vec3} out translation
- * @param  {quat2} a Dual Quaternion to be decomposed
- * @return {vec3} translation
- */
-function getTranslation(out, a) {
-  let ax = a[4],
-    ay = a[5],
-    az = a[6],
-    aw = a[7],
-    bx = -a[0],
-    by = -a[1],
-    bz = -a[2],
-    bw = a[3];
-  out[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;
-  out[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;
-  out[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;
-  return out;
-}
-
-/**
- * Translates a dual quat by the given vector
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to translate
- * @param {vec3} v vector to translate by
- * @returns {quat2} out
- */
-function translate(out, a, v) {
-  let ax1 = a[0],
-    ay1 = a[1],
-    az1 = a[2],
-    aw1 = a[3],
-    bx1 = v[0] * 0.5,
-    by1 = v[1] * 0.5,
-    bz1 = v[2] * 0.5,
-    ax2 = a[4],
-    ay2 = a[5],
-    az2 = a[6],
-    aw2 = a[7];
-  out[0] = ax1;
-  out[1] = ay1;
-  out[2] = az1;
-  out[3] = aw1;
-  out[4] = aw1 * bx1 + ay1 * bz1 - az1 * by1 + ax2;
-  out[5] = aw1 * by1 + az1 * bx1 - ax1 * bz1 + ay2;
-  out[6] = aw1 * bz1 + ax1 * by1 - ay1 * bx1 + az2;
-  out[7] = -ax1 * bx1 - ay1 * by1 - az1 * bz1 + aw2;
-  return out;
-}
-
-/**
- * Rotates a dual quat around the X axis
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to rotate
- * @param {number} rad how far should the rotation be
- * @returns {quat2} out
- */
-function rotateX(out, a, rad) {
-  let bx = -a[0],
-    by = -a[1],
-    bz = -a[2],
-    bw = a[3],
-    ax = a[4],
-    ay = a[5],
-    az = a[6],
-    aw = a[7],
-    ax1 = ax * bw + aw * bx + ay * bz - az * by,
-    ay1 = ay * bw + aw * by + az * bx - ax * bz,
-    az1 = az * bw + aw * bz + ax * by - ay * bx,
-    aw1 = aw * bw - ax * bx - ay * by - az * bz;
-  _quat_js__WEBPACK_IMPORTED_MODULE_1__["rotateX"](out, a, rad);
-  bx = out[0];
-  by = out[1];
-  bz = out[2];
-  bw = out[3];
-  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
-  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
-  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
-  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
-  return out;
-}
-
-/**
- * Rotates a dual quat around the Y axis
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to rotate
- * @param {number} rad how far should the rotation be
- * @returns {quat2} out
- */
-function rotateY(out, a, rad) {
-  let bx = -a[0],
-    by = -a[1],
-    bz = -a[2],
-    bw = a[3],
-    ax = a[4],
-    ay = a[5],
-    az = a[6],
-    aw = a[7],
-    ax1 = ax * bw + aw * bx + ay * bz - az * by,
-    ay1 = ay * bw + aw * by + az * bx - ax * bz,
-    az1 = az * bw + aw * bz + ax * by - ay * bx,
-    aw1 = aw * bw - ax * bx - ay * by - az * bz;
-  _quat_js__WEBPACK_IMPORTED_MODULE_1__["rotateY"](out, a, rad);
-  bx = out[0];
-  by = out[1];
-  bz = out[2];
-  bw = out[3];
-  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
-  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
-  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
-  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
-  return out;
-}
-
-/**
- * Rotates a dual quat around the Z axis
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to rotate
- * @param {number} rad how far should the rotation be
- * @returns {quat2} out
- */
-function rotateZ(out, a, rad) {
-  let bx = -a[0],
-    by = -a[1],
-    bz = -a[2],
-    bw = a[3],
-    ax = a[4],
-    ay = a[5],
-    az = a[6],
-    aw = a[7],
-    ax1 = ax * bw + aw * bx + ay * bz - az * by,
-    ay1 = ay * bw + aw * by + az * bx - ax * bz,
-    az1 = az * bw + aw * bz + ax * by - ay * bx,
-    aw1 = aw * bw - ax * bx - ay * by - az * bz;
-  _quat_js__WEBPACK_IMPORTED_MODULE_1__["rotateZ"](out, a, rad);
-  bx = out[0];
-  by = out[1];
-  bz = out[2];
-  bw = out[3];
-  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
-  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
-  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
-  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
-  return out;
-}
-
-/**
- * Rotates a dual quat by a given quaternion (a * q)
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to rotate
- * @param {quat} q quaternion to rotate by
- * @returns {quat2} out
- */
-function rotateByQuatAppend(out, a, q) {
-  let qx = q[0],
-    qy = q[1],
-    qz = q[2],
-    qw = q[3],
-    ax = a[0],
-    ay = a[1],
-    az = a[2],
-    aw = a[3];
-
-  out[0] = ax * qw + aw * qx + ay * qz - az * qy;
-  out[1] = ay * qw + aw * qy + az * qx - ax * qz;
-  out[2] = az * qw + aw * qz + ax * qy - ay * qx;
-  out[3] = aw * qw - ax * qx - ay * qy - az * qz;
-  ax = a[4];
-  ay = a[5];
-  az = a[6];
-  aw = a[7];
-  out[4] = ax * qw + aw * qx + ay * qz - az * qy;
-  out[5] = ay * qw + aw * qy + az * qx - ax * qz;
-  out[6] = az * qw + aw * qz + ax * qy - ay * qx;
-  out[7] = aw * qw - ax * qx - ay * qy - az * qz;
-  return out;
-}
-
-/**
- * Rotates a dual quat by a given quaternion (q * a)
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat} q quaternion to rotate by
- * @param {quat2} a the dual quaternion to rotate
- * @returns {quat2} out
- */
-function rotateByQuatPrepend(out, q, a) {
-  let qx = q[0],
-    qy = q[1],
-    qz = q[2],
-    qw = q[3],
-    bx = a[0],
-    by = a[1],
-    bz = a[2],
-    bw = a[3];
-
-  out[0] = qx * bw + qw * bx + qy * bz - qz * by;
-  out[1] = qy * bw + qw * by + qz * bx - qx * bz;
-  out[2] = qz * bw + qw * bz + qx * by - qy * bx;
-  out[3] = qw * bw - qx * bx - qy * by - qz * bz;
-  bx = a[4];
-  by = a[5];
-  bz = a[6];
-  bw = a[7];
-  out[4] = qx * bw + qw * bx + qy * bz - qz * by;
-  out[5] = qy * bw + qw * by + qz * bx - qx * bz;
-  out[6] = qz * bw + qw * bz + qx * by - qy * bx;
-  out[7] = qw * bw - qx * bx - qy * by - qz * bz;
-  return out;
-}
-
-/**
- * Rotates a dual quat around a given axis. Does the normalisation automatically
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the dual quaternion to rotate
- * @param {vec3} axis the axis to rotate around
- * @param {Number} rad how far the rotation should be
- * @returns {quat2} out
- */
-function rotateAroundAxis(out, a, axis, rad) {
-  //Special case for rad = 0
-  if (Math.abs(rad) < _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]) {
-    return copy(out, a);
-  }
-  let axisLength = Math.sqrt(axis[0] * axis[0] + axis[1] * axis[1] + axis[2] * axis[2]);
-
-  rad = rad * 0.5;
-  let s = Math.sin(rad);
-  let bx = s * axis[0] / axisLength;
-  let by = s * axis[1] / axisLength;
-  let bz = s * axis[2] / axisLength;
-  let bw = Math.cos(rad);
-
-  let ax1 = a[0],
-    ay1 = a[1],
-    az1 = a[2],
-    aw1 = a[3];
-  out[0] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
-  out[1] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
-  out[2] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
-  out[3] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
-
-  let ax = a[4],
-    ay = a[5],
-    az = a[6],
-    aw = a[7];
-  out[4] = ax * bw + aw * bx + ay * bz - az * by;
-  out[5] = ay * bw + aw * by + az * bx - ax * bz;
-  out[6] = az * bw + aw * bz + ax * by - ay * bx;
-  out[7] = aw * bw - ax * bx - ay * by - az * bz;
-
-  return out;
-}
-
-/**
- * Adds two dual quat's
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the first operand
- * @param {quat2} b the second operand
- * @returns {quat2} out
- * @function
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  out[4] = a[4] + b[4];
-  out[5] = a[5] + b[5];
-  out[6] = a[6] + b[6];
-  out[7] = a[7] + b[7];
-  return out;
-}
-
-/**
- * Multiplies two dual quat's
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a the first operand
- * @param {quat2} b the second operand
- * @returns {quat2} out
- */
-function multiply(out, a, b) {
-  let ax0 = a[0],
-    ay0 = a[1],
-    az0 = a[2],
-    aw0 = a[3],
-    bx1 = b[4],
-    by1 = b[5],
-    bz1 = b[6],
-    bw1 = b[7],
-    ax1 = a[4],
-    ay1 = a[5],
-    az1 = a[6],
-    aw1 = a[7],
-    bx0 = b[0],
-    by0 = b[1],
-    bz0 = b[2],
-    bw0 = b[3];
-  out[0] = ax0 * bw0 + aw0 * bx0 + ay0 * bz0 - az0 * by0;
-  out[1] = ay0 * bw0 + aw0 * by0 + az0 * bx0 - ax0 * bz0;
-  out[2] = az0 * bw0 + aw0 * bz0 + ax0 * by0 - ay0 * bx0;
-  out[3] = aw0 * bw0 - ax0 * bx0 - ay0 * by0 - az0 * bz0;
-  out[4] = ax0 * bw1 + aw0 * bx1 + ay0 * bz1 - az0 * by1 + ax1 * bw0 + aw1 * bx0 + ay1 * bz0 - az1 * by0;
-  out[5] = ay0 * bw1 + aw0 * by1 + az0 * bx1 - ax0 * bz1 + ay1 * bw0 + aw1 * by0 + az1 * bx0 - ax1 * bz0;
-  out[6] = az0 * bw1 + aw0 * bz1 + ax0 * by1 - ay0 * bx1 + az1 * bw0 + aw1 * bz0 + ax1 * by0 - ay1 * bx0;
-  out[7] = aw0 * bw1 - ax0 * bx1 - ay0 * by1 - az0 * bz1 + aw1 * bw0 - ax1 * bx0 - ay1 * by0 - az1 * bz0;
-  return out;
-}
-
-/**
- * Alias for {@link quat2.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Scales a dual quat by a scalar number
- *
- * @param {quat2} out the receiving dual quat
- * @param {quat2} a the dual quat to scale
- * @param {Number} b amount to scale the dual quat by
- * @returns {quat2} out
- * @function
- */
-function scale(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  out[4] = a[4] * b;
-  out[5] = a[5] * b;
-  out[6] = a[6] * b;
-  out[7] = a[7] * b;
-  return out;
-}
-
-/**
- * Calculates the dot product of two dual quat's (The dot product of the real parts)
- *
- * @param {quat2} a the first operand
- * @param {quat2} b the second operand
- * @returns {Number} dot product of a and b
- * @function
- */
-const dot = _quat_js__WEBPACK_IMPORTED_MODULE_1__["dot"];
-
-/**
- * Performs a linear interpolation between two dual quats's
- * NOTE: The resulting dual quaternions won't always be normalized (The error is most noticeable when t = 0.5)
- *
- * @param {quat2} out the receiving dual quat
- * @param {quat2} a the first operand
- * @param {quat2} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {quat2} out
- */
-function lerp(out, a, b, t) {
-  let mt = 1 - t;
-  if (dot(a, b) < 0) t = -t;
-
-  out[0] = a[0] * mt + b[0] * t;
-  out[1] = a[1] * mt + b[1] * t;
-  out[2] = a[2] * mt + b[2] * t;
-  out[3] = a[3] * mt + b[3] * t;
-  out[4] = a[4] * mt + b[4] * t;
-  out[5] = a[5] * mt + b[5] * t;
-  out[6] = a[6] * mt + b[6] * t;
-  out[7] = a[7] * mt + b[7] * t;
-
-  return out;
-}
-
-/**
- * Calculates the inverse of a dual quat. If they are normalized, conjugate is cheaper
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a dual quat to calculate inverse of
- * @returns {quat2} out
- */
-function invert(out, a) {
-  let sqlen = squaredLength(a);
-  out[0] = -a[0] / sqlen;
-  out[1] = -a[1] / sqlen;
-  out[2] = -a[2] / sqlen;
-  out[3] = a[3] / sqlen;
-  out[4] = -a[4] / sqlen;
-  out[5] = -a[5] / sqlen;
-  out[6] = -a[6] / sqlen;
-  out[7] = a[7] / sqlen;
-  return out;
-}
-
-/**
- * Calculates the conjugate of a dual quat
- * If the dual quaternion is normalized, this function is faster than quat2.inverse and produces the same result.
- *
- * @param {quat2} out the receiving quaternion
- * @param {quat2} a quat to calculate conjugate of
- * @returns {quat2} out
- */
-function conjugate(out, a) {
-  out[0] = -a[0];
-  out[1] = -a[1];
-  out[2] = -a[2];
-  out[3] = a[3];
-  out[4] = -a[4];
-  out[5] = -a[5];
-  out[6] = -a[6];
-  out[7] = a[7];
-  return out;
-}
-
-/**
- * Calculates the length of a dual quat
- *
- * @param {quat2} a dual quat to calculate length of
- * @returns {Number} length of a
- * @function
- */
-const length = _quat_js__WEBPACK_IMPORTED_MODULE_1__["length"];
-
-/**
- * Alias for {@link quat2.length}
- * @function
- */
-const len = length;
-
-/**
- * Calculates the squared length of a dual quat
- *
- * @param {quat2} a dual quat to calculate squared length of
- * @returns {Number} squared length of a
- * @function
- */
-const squaredLength = _quat_js__WEBPACK_IMPORTED_MODULE_1__["squaredLength"];
-
-/**
- * Alias for {@link quat2.squaredLength}
- * @function
- */
-const sqrLen = squaredLength;
-
-/**
- * Normalize a dual quat
- *
- * @param {quat2} out the receiving dual quaternion
- * @param {quat2} a dual quaternion to normalize
- * @returns {quat2} out
- * @function
- */
-function normalize(out, a) {
-  let magnitude = squaredLength(a);
-  if (magnitude > 0) {
-    magnitude = Math.sqrt(magnitude);
-
-    let a0 = a[0] / magnitude;
-    let a1 = a[1] / magnitude;
-    let a2 = a[2] / magnitude;
-    let a3 = a[3] / magnitude;
-
-    let b0 = a[4];
-    let b1 = a[5];
-    let b2 = a[6];
-    let b3 = a[7];
-
-    let a_dot_b = (a0 * b0) + (a1 * b1) + (a2 * b2) + (a3 * b3);
-
-    out[0] = a0;
-    out[1] = a1;
-    out[2] = a2;
-    out[3] = a3;
-
-    out[4] = (b0 - (a0 * a_dot_b)) / magnitude;
-    out[5] = (b1 - (a1 * a_dot_b)) / magnitude;
-    out[6] = (b2 - (a2 * a_dot_b)) / magnitude;
-    out[7] = (b3 - (a3 * a_dot_b)) / magnitude;
-  }
-  return out;
-}
-
-/**
- * Returns a string representation of a dual quatenion
- *
- * @param {quat2} a dual quaternion to represent as a string
- * @returns {String} string representation of the dual quat
- */
-function str(a) {
-  return 'quat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
-    a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ')';
-}
-
-/**
- * Returns whether or not the dual quaternions have exactly the same elements in the same position (when compared with ===)
- *
- * @param {quat2} a the first dual quaternion.
- * @param {quat2} b the second dual quaternion.
- * @returns {Boolean} true if the dual quaternions are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&
-    a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7];
-}
-
-/**
- * Returns whether or not the dual quaternions have approximately the same elements in the same position.
- *
- * @param {quat2} a the first dual quat.
- * @param {quat2} b the second dual quat.
- * @returns {Boolean} true if the dual quats are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0],
-    a1 = a[1],
-    a2 = a[2],
-    a3 = a[3],
-    a4 = a[4],
-    a5 = a[5],
-    a6 = a[6],
-    a7 = a[7];
-  let b0 = b[0],
-    b1 = b[1],
-    b2 = b[2],
-    b3 = b[3],
-    b4 = b[4],
-    b5 = b[5],
-    b6 = b[6],
-    b7 = b[7];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-    Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-    Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-    Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
-    Math.abs(a4 - b4) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
-    Math.abs(a5 - b5) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
-    Math.abs(a6 - b6) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
-    Math.abs(a7 - b7) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"] * Math.max(1.0, Math.abs(a7), Math.abs(b7)));
-}
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/vec2.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/vec2.js ***!
-  \******************************************************/
-/*! exports provided: create, clone, fromValues, copy, set, add, subtract, multiply, divide, ceil, floor, min, max, round, scale, scaleAndAdd, distance, squaredDistance, length, squaredLength, negate, inverse, normalize, dot, cross, lerp, random, transformMat2, transformMat2d, transformMat3, transformMat4, rotate, angle, str, exactEquals, equals, len, sub, mul, div, dist, sqrDist, sqrLen, forEach */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "divide", function() { return divide; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ceil", function() { return ceil; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "floor", function() { return floor; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "min", function() { return min; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "max", function() { return max; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "round", function() { return round; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scaleAndAdd", function() { return scaleAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "distance", function() { return distance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredDistance", function() { return squaredDistance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "length", function() { return length; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredLength", function() { return squaredLength; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "negate", function() { return negate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "inverse", function() { return inverse; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalize", function() { return normalize; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dot", function() { return dot; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "cross", function() { return cross; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lerp", function() { return lerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "random", function() { return random; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat2", function() { return transformMat2; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat2d", function() { return transformMat2d; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat3", function() { return transformMat3; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat4", function() { return transformMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotate", function() { return rotate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "angle", function() { return angle; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "len", function() { return len; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "div", function() { return div; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dist", function() { return dist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrDist", function() { return sqrDist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrLen", function() { return sqrLen; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "forEach", function() { return forEach; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 2 Dimensional Vector
- * @module vec2
- */
-
-/**
- * Creates a new, empty vec2
- *
- * @returns {vec2} a new 2D vector
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](2);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[0] = 0;
-    out[1] = 0;
-  }
-  return out;
-}
-
-/**
- * Creates a new vec2 initialized with values from an existing vector
- *
- * @param {vec2} a vector to clone
- * @returns {vec2} a new 2D vector
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](2);
-  out[0] = a[0];
-  out[1] = a[1];
-  return out;
-}
-
-/**
- * Creates a new vec2 initialized with the given values
- *
- * @param {Number} x X component
- * @param {Number} y Y component
- * @returns {vec2} a new 2D vector
- */
-function fromValues(x, y) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](2);
-  out[0] = x;
-  out[1] = y;
-  return out;
-}
-
-/**
- * Copy the values from one vec2 to another
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the source vector
- * @returns {vec2} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  return out;
-}
-
-/**
- * Set the components of a vec2 to the given values
- *
- * @param {vec2} out the receiving vector
- * @param {Number} x X component
- * @param {Number} y Y component
- * @returns {vec2} out
- */
-function set(out, x, y) {
-  out[0] = x;
-  out[1] = y;
-  return out;
-}
-
-/**
- * Adds two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  return out;
-}
-
-/**
- * Subtracts vector b from vector a
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  return out;
-}
-
-/**
- * Multiplies two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function multiply(out, a, b) {
-  out[0] = a[0] * b[0];
-  out[1] = a[1] * b[1];
-  return out;
-}
-
-/**
- * Divides two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function divide(out, a, b) {
-  out[0] = a[0] / b[0];
-  out[1] = a[1] / b[1];
-  return out;
-}
-
-/**
- * Math.ceil the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to ceil
- * @returns {vec2} out
- */
-function ceil(out, a) {
-  out[0] = Math.ceil(a[0]);
-  out[1] = Math.ceil(a[1]);
-  return out;
-}
-
-/**
- * Math.floor the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to floor
- * @returns {vec2} out
- */
-function floor(out, a) {
-  out[0] = Math.floor(a[0]);
-  out[1] = Math.floor(a[1]);
-  return out;
-}
-
-/**
- * Returns the minimum of two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function min(out, a, b) {
-  out[0] = Math.min(a[0], b[0]);
-  out[1] = Math.min(a[1], b[1]);
-  return out;
-}
-
-/**
- * Returns the maximum of two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec2} out
- */
-function max(out, a, b) {
-  out[0] = Math.max(a[0], b[0]);
-  out[1] = Math.max(a[1], b[1]);
-  return out;
-}
-
-/**
- * Math.round the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to round
- * @returns {vec2} out
- */
-function round (out, a) {
-  out[0] = Math.round(a[0]);
-  out[1] = Math.round(a[1]);
-  return out;
-}
-
-/**
- * Scales a vec2 by a scalar number
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {vec2} out
- */
-function scale(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  return out;
-}
-
-/**
- * Adds two vec2's after scaling the second operand by a scalar value
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @param {Number} scale the amount to scale b by before adding
- * @returns {vec2} out
- */
-function scaleAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  return out;
-}
-
-/**
- * Calculates the euclidian distance between two vec2's
- *
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {Number} distance between a and b
- */
-function distance(a, b) {
-  var x = b[0] - a[0],
-    y = b[1] - a[1];
-  return Math.sqrt(x*x + y*y);
-}
-
-/**
- * Calculates the squared euclidian distance between two vec2's
- *
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {Number} squared distance between a and b
- */
-function squaredDistance(a, b) {
-  var x = b[0] - a[0],
-    y = b[1] - a[1];
-  return x*x + y*y;
-}
-
-/**
- * Calculates the length of a vec2
- *
- * @param {vec2} a vector to calculate length of
- * @returns {Number} length of a
- */
-function length(a) {
-  var x = a[0],
-    y = a[1];
-  return Math.sqrt(x*x + y*y);
-}
-
-/**
- * Calculates the squared length of a vec2
- *
- * @param {vec2} a vector to calculate squared length of
- * @returns {Number} squared length of a
- */
-function squaredLength (a) {
-  var x = a[0],
-    y = a[1];
-  return x*x + y*y;
-}
-
-/**
- * Negates the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to negate
- * @returns {vec2} out
- */
-function negate(out, a) {
-  out[0] = -a[0];
-  out[1] = -a[1];
-  return out;
-}
-
-/**
- * Returns the inverse of the components of a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to invert
- * @returns {vec2} out
- */
-function inverse(out, a) {
-  out[0] = 1.0 / a[0];
-  out[1] = 1.0 / a[1];
-  return out;
-}
-
-/**
- * Normalize a vec2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a vector to normalize
- * @returns {vec2} out
- */
-function normalize(out, a) {
-  var x = a[0],
-    y = a[1];
-  var len = x*x + y*y;
-  if (len > 0) {
-    //TODO: evaluate use of glm_invsqrt here?
-    len = 1 / Math.sqrt(len);
-    out[0] = a[0] * len;
-    out[1] = a[1] * len;
-  }
-  return out;
-}
-
-/**
- * Calculates the dot product of two vec2's
- *
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {Number} dot product of a and b
- */
-function dot(a, b) {
-  return a[0] * b[0] + a[1] * b[1];
-}
-
-/**
- * Computes the cross product of two vec2's
- * Note that the cross product must by definition produce a 3D vector
- *
- * @param {vec3} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @returns {vec3} out
- */
-function cross(out, a, b) {
-  var z = a[0] * b[1] - a[1] * b[0];
-  out[0] = out[1] = 0;
-  out[2] = z;
-  return out;
-}
-
-/**
- * Performs a linear interpolation between two vec2's
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the first operand
- * @param {vec2} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec2} out
- */
-function lerp(out, a, b, t) {
-  var ax = a[0],
-    ay = a[1];
-  out[0] = ax + t * (b[0] - ax);
-  out[1] = ay + t * (b[1] - ay);
-  return out;
-}
-
-/**
- * Generates a random vector with the given scale
- *
- * @param {vec2} out the receiving vector
- * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
- * @returns {vec2} out
- */
-function random(out, scale) {
-  scale = scale || 1.0;
-  var r = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2.0 * Math.PI;
-  out[0] = Math.cos(r) * scale;
-  out[1] = Math.sin(r) * scale;
-  return out;
-}
-
-/**
- * Transforms the vec2 with a mat2
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the vector to transform
- * @param {mat2} m matrix to transform with
- * @returns {vec2} out
- */
-function transformMat2(out, a, m) {
-  var x = a[0],
-    y = a[1];
-  out[0] = m[0] * x + m[2] * y;
-  out[1] = m[1] * x + m[3] * y;
-  return out;
-}
-
-/**
- * Transforms the vec2 with a mat2d
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the vector to transform
- * @param {mat2d} m matrix to transform with
- * @returns {vec2} out
- */
-function transformMat2d(out, a, m) {
-  var x = a[0],
-    y = a[1];
-  out[0] = m[0] * x + m[2] * y + m[4];
-  out[1] = m[1] * x + m[3] * y + m[5];
-  return out;
-}
-
-/**
- * Transforms the vec2 with a mat3
- * 3rd vector component is implicitly '1'
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the vector to transform
- * @param {mat3} m matrix to transform with
- * @returns {vec2} out
- */
-function transformMat3(out, a, m) {
-  var x = a[0],
-    y = a[1];
-  out[0] = m[0] * x + m[3] * y + m[6];
-  out[1] = m[1] * x + m[4] * y + m[7];
-  return out;
-}
-
-/**
- * Transforms the vec2 with a mat4
- * 3rd vector component is implicitly '0'
- * 4th vector component is implicitly '1'
- *
- * @param {vec2} out the receiving vector
- * @param {vec2} a the vector to transform
- * @param {mat4} m matrix to transform with
- * @returns {vec2} out
- */
-function transformMat4(out, a, m) {
-  let x = a[0];
-  let y = a[1];
-  out[0] = m[0] * x + m[4] * y + m[12];
-  out[1] = m[1] * x + m[5] * y + m[13];
-  return out;
-}
-
-/**
- * Rotate a 2D vector
- * @param {vec2} out The receiving vec2
- * @param {vec2} a The vec2 point to rotate
- * @param {vec2} b The origin of the rotation
- * @param {Number} c The angle of rotation
- * @returns {vec2} out
- */
-function rotate(out, a, b, c) {
-  //Translate point to the origin
-  let p0 = a[0] - b[0],
-  p1 = a[1] - b[1],
-  sinC = Math.sin(c),
-  cosC = Math.cos(c);
-  
-  //perform rotation and translate to correct position
-  out[0] = p0*cosC - p1*sinC + b[0];
-  out[1] = p0*sinC + p1*cosC + b[1];
-
-  return out;
-}
-
-/**
- * Get the angle between two 2D vectors
- * @param {vec2} a The first operand
- * @param {vec2} b The second operand
- * @returns {Number} The angle in radians
- */
-function angle(a, b) {
-  let x1 = a[0],
-    y1 = a[1],
-    x2 = b[0],
-    y2 = b[1];
-  
-  let len1 = x1*x1 + y1*y1;
-  if (len1 > 0) {
-    //TODO: evaluate use of glm_invsqrt here?
-    len1 = 1 / Math.sqrt(len1);
-  }
-  
-  let len2 = x2*x2 + y2*y2;
-  if (len2 > 0) {
-    //TODO: evaluate use of glm_invsqrt here?
-    len2 = 1 / Math.sqrt(len2);
-  }
-  
-  let cosine = (x1 * x2 + y1 * y2) * len1 * len2;
-  
-  
-  if(cosine > 1.0) {
-    return 0;
-  }
-  else if(cosine < -1.0) {
-    return Math.PI;
-  } else {
-    return Math.acos(cosine);
-  }
-}
-
-/**
- * Returns a string representation of a vector
- *
- * @param {vec2} a vector to represent as a string
- * @returns {String} string representation of the vector
- */
-function str(a) {
-  return 'vec2(' + a[0] + ', ' + a[1] + ')';
-}
-
-/**
- * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===)
- *
- * @param {vec2} a The first vector.
- * @param {vec2} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1];
-}
-
-/**
- * Returns whether or not the vectors have approximately the same elements in the same position.
- *
- * @param {vec2} a The first vector.
- * @param {vec2} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1];
-  let b0 = b[0], b1 = b[1];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)));
-}
-
-/**
- * Alias for {@link vec2.length}
- * @function
- */
-const len = length;
-
-/**
- * Alias for {@link vec2.subtract}
- * @function
- */
-const sub = subtract;
-
-/**
- * Alias for {@link vec2.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link vec2.divide}
- * @function
- */
-const div = divide;
-
-/**
- * Alias for {@link vec2.distance}
- * @function
- */
-const dist = distance;
-
-/**
- * Alias for {@link vec2.squaredDistance}
- * @function
- */
-const sqrDist = squaredDistance;
-
-/**
- * Alias for {@link vec2.squaredLength}
- * @function
- */
-const sqrLen = squaredLength;
-
-/**
- * Perform some operation over an array of vec2s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-const forEach = (function() {
-  let vec = create();
-
-  return function(a, stride, offset, count, fn, arg) {
-    let i, l;
-    if(!stride) {
-      stride = 2;
-    }
-
-    if(!offset) {
-      offset = 0;
-    }
-
-    if(count) {
-      l = Math.min((count * stride) + offset, a.length);
-    } else {
-      l = a.length;
-    }
-
-    for(i = offset; i < l; i += stride) {
-      vec[0] = a[i]; vec[1] = a[i+1];
-      fn(vec, vec, arg);
-      a[i] = vec[0]; a[i+1] = vec[1];
-    }
-
-    return a;
-  };
-})();
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/vec3.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/vec3.js ***!
-  \******************************************************/
-/*! exports provided: create, clone, length, fromValues, copy, set, add, subtract, multiply, divide, ceil, floor, min, max, round, scale, scaleAndAdd, distance, squaredDistance, squaredLength, negate, inverse, normalize, dot, cross, lerp, hermite, bezier, random, transformMat4, transformMat3, transformQuat, rotateX, rotateY, rotateZ, angle, str, exactEquals, equals, sub, mul, div, dist, sqrDist, len, sqrLen, forEach */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "length", function() { return length; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "divide", function() { return divide; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ceil", function() { return ceil; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "floor", function() { return floor; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "min", function() { return min; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "max", function() { return max; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "round", function() { return round; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scaleAndAdd", function() { return scaleAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "distance", function() { return distance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredDistance", function() { return squaredDistance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredLength", function() { return squaredLength; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "negate", function() { return negate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "inverse", function() { return inverse; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalize", function() { return normalize; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dot", function() { return dot; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "cross", function() { return cross; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lerp", function() { return lerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "hermite", function() { return hermite; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "bezier", function() { return bezier; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "random", function() { return random; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat4", function() { return transformMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat3", function() { return transformMat3; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformQuat", function() { return transformQuat; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateX", function() { return rotateX; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateY", function() { return rotateY; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "rotateZ", function() { return rotateZ; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "angle", function() { return angle; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "div", function() { return div; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dist", function() { return dist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrDist", function() { return sqrDist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "len", function() { return len; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrLen", function() { return sqrLen; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "forEach", function() { return forEach; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 3 Dimensional Vector
- * @module vec3
- */
-
-/**
- * Creates a new, empty vec3
- *
- * @returns {vec3} a new 3D vector
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](3);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[0] = 0;
-    out[1] = 0;
-    out[2] = 0;
-  }
-  return out;
-}
-
-/**
- * Creates a new vec3 initialized with values from an existing vector
- *
- * @param {vec3} a vector to clone
- * @returns {vec3} a new 3D vector
- */
-function clone(a) {
-  var out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](3);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  return out;
-}
-
-/**
- * Calculates the length of a vec3
- *
- * @param {vec3} a vector to calculate length of
- * @returns {Number} length of a
- */
-function length(a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  return Math.sqrt(x*x + y*y + z*z);
-}
-
-/**
- * Creates a new vec3 initialized with the given values
- *
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @returns {vec3} a new 3D vector
- */
-function fromValues(x, y, z) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](3);
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
-  return out;
-}
-
-/**
- * Copy the values from one vec3 to another
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the source vector
- * @returns {vec3} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  return out;
-}
-
-/**
- * Set the components of a vec3 to the given values
- *
- * @param {vec3} out the receiving vector
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @returns {vec3} out
- */
-function set(out, x, y, z) {
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
-  return out;
-}
-
-/**
- * Adds two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  return out;
-}
-
-/**
- * Subtracts vector b from vector a
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  return out;
-}
-
-/**
- * Multiplies two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function multiply(out, a, b) {
-  out[0] = a[0] * b[0];
-  out[1] = a[1] * b[1];
-  out[2] = a[2] * b[2];
-  return out;
-}
-
-/**
- * Divides two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function divide(out, a, b) {
-  out[0] = a[0] / b[0];
-  out[1] = a[1] / b[1];
-  out[2] = a[2] / b[2];
-  return out;
-}
-
-/**
- * Math.ceil the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to ceil
- * @returns {vec3} out
- */
-function ceil(out, a) {
-  out[0] = Math.ceil(a[0]);
-  out[1] = Math.ceil(a[1]);
-  out[2] = Math.ceil(a[2]);
-  return out;
-}
-
-/**
- * Math.floor the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to floor
- * @returns {vec3} out
- */
-function floor(out, a) {
-  out[0] = Math.floor(a[0]);
-  out[1] = Math.floor(a[1]);
-  out[2] = Math.floor(a[2]);
-  return out;
-}
-
-/**
- * Returns the minimum of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function min(out, a, b) {
-  out[0] = Math.min(a[0], b[0]);
-  out[1] = Math.min(a[1], b[1]);
-  out[2] = Math.min(a[2], b[2]);
-  return out;
-}
-
-/**
- * Returns the maximum of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function max(out, a, b) {
-  out[0] = Math.max(a[0], b[0]);
-  out[1] = Math.max(a[1], b[1]);
-  out[2] = Math.max(a[2], b[2]);
-  return out;
-}
-
-/**
- * Math.round the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to round
- * @returns {vec3} out
- */
-function round(out, a) {
-  out[0] = Math.round(a[0]);
-  out[1] = Math.round(a[1]);
-  out[2] = Math.round(a[2]);
-  return out;
-}
-
-/**
- * Scales a vec3 by a scalar number
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {vec3} out
- */
-function scale(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  return out;
-}
-
-/**
- * Adds two vec3's after scaling the second operand by a scalar value
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @param {Number} scale the amount to scale b by before adding
- * @returns {vec3} out
- */
-function scaleAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  return out;
-}
-
-/**
- * Calculates the euclidian distance between two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} distance between a and b
- */
-function distance(a, b) {
-  let x = b[0] - a[0];
-  let y = b[1] - a[1];
-  let z = b[2] - a[2];
-  return Math.sqrt(x*x + y*y + z*z);
-}
-
-/**
- * Calculates the squared euclidian distance between two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} squared distance between a and b
- */
-function squaredDistance(a, b) {
-  let x = b[0] - a[0];
-  let y = b[1] - a[1];
-  let z = b[2] - a[2];
-  return x*x + y*y + z*z;
-}
-
-/**
- * Calculates the squared length of a vec3
- *
- * @param {vec3} a vector to calculate squared length of
- * @returns {Number} squared length of a
- */
-function squaredLength(a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  return x*x + y*y + z*z;
-}
-
-/**
- * Negates the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to negate
- * @returns {vec3} out
- */
-function negate(out, a) {
-  out[0] = -a[0];
-  out[1] = -a[1];
-  out[2] = -a[2];
-  return out;
-}
-
-/**
- * Returns the inverse of the components of a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to invert
- * @returns {vec3} out
- */
-function inverse(out, a) {
-  out[0] = 1.0 / a[0];
-  out[1] = 1.0 / a[1];
-  out[2] = 1.0 / a[2];
-  return out;
-}
-
-/**
- * Normalize a vec3
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a vector to normalize
- * @returns {vec3} out
- */
-function normalize(out, a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  let len = x*x + y*y + z*z;
-  if (len > 0) {
-    //TODO: evaluate use of glm_invsqrt here?
-    len = 1 / Math.sqrt(len);
-    out[0] = a[0] * len;
-    out[1] = a[1] * len;
-    out[2] = a[2] * len;
-  }
-  return out;
-}
-
-/**
- * Calculates the dot product of two vec3's
- *
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {Number} dot product of a and b
- */
-function dot(a, b) {
-  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
-}
-
-/**
- * Computes the cross product of two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @returns {vec3} out
- */
-function cross(out, a, b) {
-  let ax = a[0], ay = a[1], az = a[2];
-  let bx = b[0], by = b[1], bz = b[2];
-
-  out[0] = ay * bz - az * by;
-  out[1] = az * bx - ax * bz;
-  out[2] = ax * by - ay * bx;
-  return out;
-}
-
-/**
- * Performs a linear interpolation between two vec3's
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec3} out
- */
-function lerp(out, a, b, t) {
-  let ax = a[0];
-  let ay = a[1];
-  let az = a[2];
-  out[0] = ax + t * (b[0] - ax);
-  out[1] = ay + t * (b[1] - ay);
-  out[2] = az + t * (b[2] - az);
-  return out;
-}
-
-/**
- * Performs a hermite interpolation with two control points
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @param {vec3} c the third operand
- * @param {vec3} d the fourth operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec3} out
- */
-function hermite(out, a, b, c, d, t) {
-  let factorTimes2 = t * t;
-  let factor1 = factorTimes2 * (2 * t - 3) + 1;
-  let factor2 = factorTimes2 * (t - 2) + t;
-  let factor3 = factorTimes2 * (t - 1);
-  let factor4 = factorTimes2 * (3 - 2 * t);
-
-  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;
-  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;
-  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;
-
-  return out;
-}
-
-/**
- * Performs a bezier interpolation with two control points
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the first operand
- * @param {vec3} b the second operand
- * @param {vec3} c the third operand
- * @param {vec3} d the fourth operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec3} out
- */
-function bezier(out, a, b, c, d, t) {
-  let inverseFactor = 1 - t;
-  let inverseFactorTimesTwo = inverseFactor * inverseFactor;
-  let factorTimes2 = t * t;
-  let factor1 = inverseFactorTimesTwo * inverseFactor;
-  let factor2 = 3 * t * inverseFactorTimesTwo;
-  let factor3 = 3 * factorTimes2 * inverseFactor;
-  let factor4 = factorTimes2 * t;
-
-  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;
-  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;
-  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;
-
-  return out;
-}
-
-/**
- * Generates a random vector with the given scale
- *
- * @param {vec3} out the receiving vector
- * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
- * @returns {vec3} out
- */
-function random(out, scale) {
-  scale = scale || 1.0;
-
-  let r = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2.0 * Math.PI;
-  let z = (_common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2.0) - 1.0;
-  let zScale = Math.sqrt(1.0-z*z) * scale;
-
-  out[0] = Math.cos(r) * zScale;
-  out[1] = Math.sin(r) * zScale;
-  out[2] = z * scale;
-  return out;
-}
-
-/**
- * Transforms the vec3 with a mat4.
- * 4th vector component is implicitly '1'
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to transform
- * @param {mat4} m matrix to transform with
- * @returns {vec3} out
- */
-function transformMat4(out, a, m) {
-  let x = a[0], y = a[1], z = a[2];
-  let w = m[3] * x + m[7] * y + m[11] * z + m[15];
-  w = w || 1.0;
-  out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;
-  out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;
-  out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;
-  return out;
-}
-
-/**
- * Transforms the vec3 with a mat3.
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to transform
- * @param {mat3} m the 3x3 matrix to transform with
- * @returns {vec3} out
- */
-function transformMat3(out, a, m) {
-  let x = a[0], y = a[1], z = a[2];
-  out[0] = x * m[0] + y * m[3] + z * m[6];
-  out[1] = x * m[1] + y * m[4] + z * m[7];
-  out[2] = x * m[2] + y * m[5] + z * m[8];
-  return out;
-}
-
-/**
- * Transforms the vec3 with a quat
- * Can also be used for dual quaternions. (Multiply it with the real part)
- *
- * @param {vec3} out the receiving vector
- * @param {vec3} a the vector to transform
- * @param {quat} q quaternion to transform with
- * @returns {vec3} out
- */
-function transformQuat(out, a, q) {
-    // benchmarks: https://jsperf.com/quaternion-transform-vec3-implementations-fixed
-    let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
-    let x = a[0], y = a[1], z = a[2];
-    // var qvec = [qx, qy, qz];
-    // var uv = vec3.cross([], qvec, a);
-    let uvx = qy * z - qz * y,
-        uvy = qz * x - qx * z,
-        uvz = qx * y - qy * x;
-    // var uuv = vec3.cross([], qvec, uv);
-    let uuvx = qy * uvz - qz * uvy,
-        uuvy = qz * uvx - qx * uvz,
-        uuvz = qx * uvy - qy * uvx;
-    // vec3.scale(uv, uv, 2 * w);
-    let w2 = qw * 2;
-    uvx *= w2;
-    uvy *= w2;
-    uvz *= w2;
-    // vec3.scale(uuv, uuv, 2);
-    uuvx *= 2;
-    uuvy *= 2;
-    uuvz *= 2;
-    // return vec3.add(out, a, vec3.add(out, uv, uuv));
-    out[0] = x + uvx + uuvx;
-    out[1] = y + uvy + uuvy;
-    out[2] = z + uvz + uuvz;
-    return out;
-}
-
-/**
- * Rotate a 3D vector around the x-axis
- * @param {vec3} out The receiving vec3
- * @param {vec3} a The vec3 point to rotate
- * @param {vec3} b The origin of the rotation
- * @param {Number} c The angle of rotation
- * @returns {vec3} out
- */
-function rotateX(out, a, b, c){
-  let p = [], r=[];
-  //Translate point to the origin
-  p[0] = a[0] - b[0];
-  p[1] = a[1] - b[1];
-  p[2] = a[2] - b[2];
-
-  //perform rotation
-  r[0] = p[0];
-  r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);
-  r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);
-
-  //translate to correct position
-  out[0] = r[0] + b[0];
-  out[1] = r[1] + b[1];
-  out[2] = r[2] + b[2];
-
-  return out;
-}
-
-/**
- * Rotate a 3D vector around the y-axis
- * @param {vec3} out The receiving vec3
- * @param {vec3} a The vec3 point to rotate
- * @param {vec3} b The origin of the rotation
- * @param {Number} c The angle of rotation
- * @returns {vec3} out
- */
-function rotateY(out, a, b, c){
-  let p = [], r=[];
-  //Translate point to the origin
-  p[0] = a[0] - b[0];
-  p[1] = a[1] - b[1];
-  p[2] = a[2] - b[2];
-
-  //perform rotation
-  r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);
-  r[1] = p[1];
-  r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);
-
-  //translate to correct position
-  out[0] = r[0] + b[0];
-  out[1] = r[1] + b[1];
-  out[2] = r[2] + b[2];
-
-  return out;
-}
-
-/**
- * Rotate a 3D vector around the z-axis
- * @param {vec3} out The receiving vec3
- * @param {vec3} a The vec3 point to rotate
- * @param {vec3} b The origin of the rotation
- * @param {Number} c The angle of rotation
- * @returns {vec3} out
- */
-function rotateZ(out, a, b, c){
-  let p = [], r=[];
-  //Translate point to the origin
-  p[0] = a[0] - b[0];
-  p[1] = a[1] - b[1];
-  p[2] = a[2] - b[2];
-
-  //perform rotation
-  r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);
-  r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);
-  r[2] = p[2];
-
-  //translate to correct position
-  out[0] = r[0] + b[0];
-  out[1] = r[1] + b[1];
-  out[2] = r[2] + b[2];
-
-  return out;
-}
-
-/**
- * Get the angle between two 3D vectors
- * @param {vec3} a The first operand
- * @param {vec3} b The second operand
- * @returns {Number} The angle in radians
- */
-function angle(a, b) {
-  let tempA = fromValues(a[0], a[1], a[2]);
-  let tempB = fromValues(b[0], b[1], b[2]);
-
-  normalize(tempA, tempA);
-  normalize(tempB, tempB);
-
-  let cosine = dot(tempA, tempB);
-
-  if(cosine > 1.0) {
-    return 0;
-  }
-  else if(cosine < -1.0) {
-    return Math.PI;
-  } else {
-    return Math.acos(cosine);
-  }
-}
-
-/**
- * Returns a string representation of a vector
- *
- * @param {vec3} a vector to represent as a string
- * @returns {String} string representation of the vector
- */
-function str(a) {
-  return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
-}
-
-/**
- * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)
- *
- * @param {vec3} a The first vector.
- * @param {vec3} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2];
-}
-
-/**
- * Returns whether or not the vectors have approximately the same elements in the same position.
- *
- * @param {vec3} a The first vector.
- * @param {vec3} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2];
-  let b0 = b[0], b1 = b[1], b2 = b[2];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)));
-}
-
-/**
- * Alias for {@link vec3.subtract}
- * @function
- */
-const sub = subtract;
-
-/**
- * Alias for {@link vec3.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link vec3.divide}
- * @function
- */
-const div = divide;
-
-/**
- * Alias for {@link vec3.distance}
- * @function
- */
-const dist = distance;
-
-/**
- * Alias for {@link vec3.squaredDistance}
- * @function
- */
-const sqrDist = squaredDistance;
-
-/**
- * Alias for {@link vec3.length}
- * @function
- */
-const len = length;
-
-/**
- * Alias for {@link vec3.squaredLength}
- * @function
- */
-const sqrLen = squaredLength;
-
-/**
- * Perform some operation over an array of vec3s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-const forEach = (function() {
-  let vec = create();
-
-  return function(a, stride, offset, count, fn, arg) {
-    let i, l;
-    if(!stride) {
-      stride = 3;
-    }
-
-    if(!offset) {
-      offset = 0;
-    }
-
-    if(count) {
-      l = Math.min((count * stride) + offset, a.length);
-    } else {
-      l = a.length;
-    }
-
-    for(i = offset; i < l; i += stride) {
-      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];
-      fn(vec, vec, arg);
-      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];
-    }
-
-    return a;
-  };
-})();
-
-
-/***/ }),
-
-/***/ "./node_modules/gl-matrix/src/gl-matrix/vec4.js":
-/*!******************************************************!*\
-  !*** ./node_modules/gl-matrix/src/gl-matrix/vec4.js ***!
-  \******************************************************/
-/*! exports provided: create, clone, fromValues, copy, set, add, subtract, multiply, divide, ceil, floor, min, max, round, scale, scaleAndAdd, distance, squaredDistance, length, squaredLength, negate, inverse, normalize, dot, lerp, random, transformMat4, transformQuat, str, exactEquals, equals, sub, mul, div, dist, sqrDist, len, sqrLen, forEach */
-/***/ (function(module, __webpack_exports__, __webpack_require__) {
-
-"use strict";
-__webpack_require__.r(__webpack_exports__);
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "create", function() { return create; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "clone", function() { return clone; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "fromValues", function() { return fromValues; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "copy", function() { return copy; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "set", function() { return set; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "add", function() { return add; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "subtract", function() { return subtract; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "multiply", function() { return multiply; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "divide", function() { return divide; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "ceil", function() { return ceil; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "floor", function() { return floor; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "min", function() { return min; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "max", function() { return max; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "round", function() { return round; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scale", function() { return scale; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "scaleAndAdd", function() { return scaleAndAdd; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "distance", function() { return distance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredDistance", function() { return squaredDistance; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "length", function() { return length; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "squaredLength", function() { return squaredLength; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "negate", function() { return negate; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "inverse", function() { return inverse; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "normalize", function() { return normalize; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dot", function() { return dot; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "lerp", function() { return lerp; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "random", function() { return random; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformMat4", function() { return transformMat4; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "transformQuat", function() { return transformQuat; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "str", function() { return str; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "exactEquals", function() { return exactEquals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "equals", function() { return equals; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sub", function() { return sub; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "mul", function() { return mul; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "div", function() { return div; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "dist", function() { return dist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrDist", function() { return sqrDist; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "len", function() { return len; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "sqrLen", function() { return sqrLen; });
-/* harmony export (binding) */ __webpack_require__.d(__webpack_exports__, "forEach", function() { return forEach; });
-/* harmony import */ var _common_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(/*! ./common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-
-/**
- * 4 Dimensional Vector
- * @module vec4
- */
-
-/**
- * Creates a new, empty vec4
- *
- * @returns {vec4} a new 4D vector
- */
-function create() {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  if(_common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"] != Float32Array) {
-    out[0] = 0;
-    out[1] = 0;
-    out[2] = 0;
-    out[3] = 0;
-  }
-  return out;
-}
-
-/**
- * Creates a new vec4 initialized with values from an existing vector
- *
- * @param {vec4} a vector to clone
- * @returns {vec4} a new 4D vector
- */
-function clone(a) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Creates a new vec4 initialized with the given values
- *
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @param {Number} w W component
- * @returns {vec4} a new 4D vector
- */
-function fromValues(x, y, z, w) {
-  let out = new _common_js__WEBPACK_IMPORTED_MODULE_0__["ARRAY_TYPE"](4);
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
-  out[3] = w;
-  return out;
-}
-
-/**
- * Copy the values from one vec4 to another
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the source vector
- * @returns {vec4} out
- */
-function copy(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Set the components of a vec4 to the given values
- *
- * @param {vec4} out the receiving vector
- * @param {Number} x X component
- * @param {Number} y Y component
- * @param {Number} z Z component
- * @param {Number} w W component
- * @returns {vec4} out
- */
-function set(out, x, y, z, w) {
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
-  out[3] = w;
-  return out;
-}
-
-/**
- * Adds two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function add(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
-  out[3] = a[3] + b[3];
-  return out;
-}
-
-/**
- * Subtracts vector b from vector a
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function subtract(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
-  out[3] = a[3] - b[3];
-  return out;
-}
-
-/**
- * Multiplies two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function multiply(out, a, b) {
-  out[0] = a[0] * b[0];
-  out[1] = a[1] * b[1];
-  out[2] = a[2] * b[2];
-  out[3] = a[3] * b[3];
-  return out;
-}
-
-/**
- * Divides two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function divide(out, a, b) {
-  out[0] = a[0] / b[0];
-  out[1] = a[1] / b[1];
-  out[2] = a[2] / b[2];
-  out[3] = a[3] / b[3];
-  return out;
-}
-
-/**
- * Math.ceil the components of a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to ceil
- * @returns {vec4} out
- */
-function ceil(out, a) {
-  out[0] = Math.ceil(a[0]);
-  out[1] = Math.ceil(a[1]);
-  out[2] = Math.ceil(a[2]);
-  out[3] = Math.ceil(a[3]);
-  return out;
-}
-
-/**
- * Math.floor the components of a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to floor
- * @returns {vec4} out
- */
-function floor(out, a) {
-  out[0] = Math.floor(a[0]);
-  out[1] = Math.floor(a[1]);
-  out[2] = Math.floor(a[2]);
-  out[3] = Math.floor(a[3]);
-  return out;
-}
-
-/**
- * Returns the minimum of two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function min(out, a, b) {
-  out[0] = Math.min(a[0], b[0]);
-  out[1] = Math.min(a[1], b[1]);
-  out[2] = Math.min(a[2], b[2]);
-  out[3] = Math.min(a[3], b[3]);
-  return out;
-}
-
-/**
- * Returns the maximum of two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {vec4} out
- */
-function max(out, a, b) {
-  out[0] = Math.max(a[0], b[0]);
-  out[1] = Math.max(a[1], b[1]);
-  out[2] = Math.max(a[2], b[2]);
-  out[3] = Math.max(a[3], b[3]);
-  return out;
-}
-
-/**
- * Math.round the components of a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to round
- * @returns {vec4} out
- */
-function round(out, a) {
-  out[0] = Math.round(a[0]);
-  out[1] = Math.round(a[1]);
-  out[2] = Math.round(a[2]);
-  out[3] = Math.round(a[3]);
-  return out;
-}
-
-/**
- * Scales a vec4 by a scalar number
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the vector to scale
- * @param {Number} b amount to scale the vector by
- * @returns {vec4} out
- */
-function scale(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  out[3] = a[3] * b;
-  return out;
-}
-
-/**
- * Adds two vec4's after scaling the second operand by a scalar value
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @param {Number} scale the amount to scale b by before adding
- * @returns {vec4} out
- */
-function scaleAndAdd(out, a, b, scale) {
-  out[0] = a[0] + (b[0] * scale);
-  out[1] = a[1] + (b[1] * scale);
-  out[2] = a[2] + (b[2] * scale);
-  out[3] = a[3] + (b[3] * scale);
-  return out;
-}
-
-/**
- * Calculates the euclidian distance between two vec4's
- *
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {Number} distance between a and b
- */
-function distance(a, b) {
-  let x = b[0] - a[0];
-  let y = b[1] - a[1];
-  let z = b[2] - a[2];
-  let w = b[3] - a[3];
-  return Math.sqrt(x*x + y*y + z*z + w*w);
-}
-
-/**
- * Calculates the squared euclidian distance between two vec4's
- *
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {Number} squared distance between a and b
- */
-function squaredDistance(a, b) {
-  let x = b[0] - a[0];
-  let y = b[1] - a[1];
-  let z = b[2] - a[2];
-  let w = b[3] - a[3];
-  return x*x + y*y + z*z + w*w;
-}
-
-/**
- * Calculates the length of a vec4
- *
- * @param {vec4} a vector to calculate length of
- * @returns {Number} length of a
- */
-function length(a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  let w = a[3];
-  return Math.sqrt(x*x + y*y + z*z + w*w);
-}
-
-/**
- * Calculates the squared length of a vec4
- *
- * @param {vec4} a vector to calculate squared length of
- * @returns {Number} squared length of a
- */
-function squaredLength(a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  let w = a[3];
-  return x*x + y*y + z*z + w*w;
-}
-
-/**
- * Negates the components of a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to negate
- * @returns {vec4} out
- */
-function negate(out, a) {
-  out[0] = -a[0];
-  out[1] = -a[1];
-  out[2] = -a[2];
-  out[3] = -a[3];
-  return out;
-}
-
-/**
- * Returns the inverse of the components of a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to invert
- * @returns {vec4} out
- */
-function inverse(out, a) {
-  out[0] = 1.0 / a[0];
-  out[1] = 1.0 / a[1];
-  out[2] = 1.0 / a[2];
-  out[3] = 1.0 / a[3];
-  return out;
-}
-
-/**
- * Normalize a vec4
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a vector to normalize
- * @returns {vec4} out
- */
-function normalize(out, a) {
-  let x = a[0];
-  let y = a[1];
-  let z = a[2];
-  let w = a[3];
-  let len = x*x + y*y + z*z + w*w;
-  if (len > 0) {
-    len = 1 / Math.sqrt(len);
-    out[0] = x * len;
-    out[1] = y * len;
-    out[2] = z * len;
-    out[3] = w * len;
-  }
-  return out;
-}
-
-/**
- * Calculates the dot product of two vec4's
- *
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @returns {Number} dot product of a and b
- */
-function dot(a, b) {
-  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
-}
-
-/**
- * Performs a linear interpolation between two vec4's
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the first operand
- * @param {vec4} b the second operand
- * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
- * @returns {vec4} out
- */
-function lerp(out, a, b, t) {
-  let ax = a[0];
-  let ay = a[1];
-  let az = a[2];
-  let aw = a[3];
-  out[0] = ax + t * (b[0] - ax);
-  out[1] = ay + t * (b[1] - ay);
-  out[2] = az + t * (b[2] - az);
-  out[3] = aw + t * (b[3] - aw);
-  return out;
-}
-
-/**
- * Generates a random vector with the given scale
- *
- * @param {vec4} out the receiving vector
- * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
- * @returns {vec4} out
- */
-function random(out, scale) {
-  scale = scale || 1.0;
-
-  // Marsaglia, George. Choosing a Point from the Surface of a
-  // Sphere. Ann. Math. Statist. 43 (1972), no. 2, 645--646.
-  // http://projecteuclid.org/euclid.aoms/1177692644;
-  var v1, v2, v3, v4;
-  var s1, s2;
-  do {
-    v1 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2 - 1;
-    v2 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2 - 1;
-    s1 = v1 * v1 + v2 * v2;
-  } while (s1 >= 1);
-  do {
-    v3 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2 - 1;
-    v4 = _common_js__WEBPACK_IMPORTED_MODULE_0__["RANDOM"]() * 2 - 1;
-    s2 = v3 * v3 + v4 * v4;
-  } while (s2 >= 1);
-
-  var d = Math.sqrt((1 - s1) / s2);
-  out[0] = scale * v1;
-  out[1] = scale * v2;
-  out[2] = scale * v3 * d;
-  out[3] = scale * v4 * d;
-  return out;
-}
-
-/**
- * Transforms the vec4 with a mat4.
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the vector to transform
- * @param {mat4} m matrix to transform with
- * @returns {vec4} out
- */
-function transformMat4(out, a, m) {
-  let x = a[0], y = a[1], z = a[2], w = a[3];
-  out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;
-  out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;
-  out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;
-  out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;
-  return out;
-}
-
-/**
- * Transforms the vec4 with a quat
- *
- * @param {vec4} out the receiving vector
- * @param {vec4} a the vector to transform
- * @param {quat} q quaternion to transform with
- * @returns {vec4} out
- */
-function transformQuat(out, a, q) {
-  let x = a[0], y = a[1], z = a[2];
-  let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
-
-  // calculate quat * vec
-  let ix = qw * x + qy * z - qz * y;
-  let iy = qw * y + qz * x - qx * z;
-  let iz = qw * z + qx * y - qy * x;
-  let iw = -qx * x - qy * y - qz * z;
-
-  // calculate result * inverse quat
-  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
-  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
-  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
-  out[3] = a[3];
-  return out;
-}
-
-/**
- * Returns a string representation of a vector
- *
- * @param {vec4} a vector to represent as a string
- * @returns {String} string representation of the vector
- */
-function str(a) {
-  return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
-}
-
-/**
- * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)
- *
- * @param {vec4} a The first vector.
- * @param {vec4} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function exactEquals(a, b) {
-  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];
-}
-
-/**
- * Returns whether or not the vectors have approximately the same elements in the same position.
- *
- * @param {vec4} a The first vector.
- * @param {vec4} b The second vector.
- * @returns {Boolean} True if the vectors are equal, false otherwise.
- */
-function equals(a, b) {
-  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
-  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
-  return (Math.abs(a0 - b0) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
-          Math.abs(a1 - b1) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
-          Math.abs(a2 - b2) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
-          Math.abs(a3 - b3) <= _common_js__WEBPACK_IMPORTED_MODULE_0__["EPSILON"]*Math.max(1.0, Math.abs(a3), Math.abs(b3)));
-}
-
-/**
- * Alias for {@link vec4.subtract}
- * @function
- */
-const sub = subtract;
-
-/**
- * Alias for {@link vec4.multiply}
- * @function
- */
-const mul = multiply;
-
-/**
- * Alias for {@link vec4.divide}
- * @function
- */
-const div = divide;
-
-/**
- * Alias for {@link vec4.distance}
- * @function
- */
-const dist = distance;
-
-/**
- * Alias for {@link vec4.squaredDistance}
- * @function
- */
-const sqrDist = squaredDistance;
-
-/**
- * Alias for {@link vec4.length}
- * @function
- */
-const len = length;
-
-/**
- * Alias for {@link vec4.squaredLength}
- * @function
- */
-const sqrLen = squaredLength;
-
-/**
- * Perform some operation over an array of vec4s.
- *
- * @param {Array} a the array of vectors to iterate over
- * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed
- * @param {Number} offset Number of elements to skip at the beginning of the array
- * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array
- * @param {Function} fn Function to call for each vector in the array
- * @param {Object} [arg] additional argument to pass to fn
- * @returns {Array} a
- * @function
- */
-const forEach = (function() {
-  let vec = create();
-
-  return function(a, stride, offset, count, fn, arg) {
-    let i, l;
-    if(!stride) {
-      stride = 4;
-    }
-
-    if(!offset) {
-      offset = 0;
-    }
-
-    if(count) {
-      l = Math.min((count * stride) + offset, a.length);
-    } else {
-      l = a.length;
-    }
-
-    for(i = offset; i < l; i += stride) {
-      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];
-      fn(vec, vec, arg);
-      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];
-    }
-
-    return a;
-  };
-})();
-
-
-/***/ }),
-
-/***/ "./src/core/material.js":
-/*!******************************!*\
-  !*** ./src/core/material.js ***!
-  \******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-exports.stateToBlendFunc = stateToBlendFunc;
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var GL = WebGLRenderingContext; // For enums
-
-var CAP = exports.CAP = {
-  // Enable caps
-  CULL_FACE: 0x001,
-  BLEND: 0x002,
-  DEPTH_TEST: 0x004,
-  STENCIL_TEST: 0x008,
-  COLOR_MASK: 0x010,
-  DEPTH_MASK: 0x020,
-  STENCIL_MASK: 0x040
-};
-
-var MAT_STATE = exports.MAT_STATE = {
-  CAPS_RANGE: 0x000000FF,
-  BLEND_SRC_SHIFT: 8,
-  BLEND_SRC_RANGE: 0x00000F00,
-  BLEND_DST_SHIFT: 12,
-  BLEND_DST_RANGE: 0x0000F000,
-  BLEND_FUNC_RANGE: 0x0000FF00,
-  DEPTH_FUNC_SHIFT: 16,
-  DEPTH_FUNC_RANGE: 0x000F0000
-};
-
-var RENDER_ORDER = exports.RENDER_ORDER = {
-  // Render opaque objects first.
-  OPAQUE: 0,
-
-  // Render the sky after all opaque object to save fill rate.
-  SKY: 1,
-
-  // Render transparent objects next so that the opaqe objects show through.
-  TRANSPARENT: 2,
-
-  // Finally render purely additive effects like pointer rays so that they
-  // can render without depth mask.
-  ADDITIVE: 3,
-
-  // Render order will be picked based on the material properties.
-  DEFAULT: 4
-};
-
-function stateToBlendFunc(state, mask, shift) {
-  var value = (state & mask) >> shift;
-  switch (value) {
-    case 0:
-    case 1:
-      return value;
-    default:
-      return value - 2 + GL.SRC_COLOR;
-  }
-}
-
-var MaterialState = exports.MaterialState = function () {
-  function MaterialState() {
-    _classCallCheck(this, MaterialState);
-
-    this._state = CAP.CULL_FACE | CAP.DEPTH_TEST | CAP.COLOR_MASK | CAP.DEPTH_MASK;
-
-    // Use a fairly commonly desired blend func as the default.
-    this.blendFuncSrc = GL.SRC_ALPHA;
-    this.blendFuncDst = GL.ONE_MINUS_SRC_ALPHA;
-
-    this.depthFunc = GL.LESS;
-  }
-
-  _createClass(MaterialState, [{
-    key: "cullFace",
-    get: function get() {
-      return !!(this._state & CAP.CULL_FACE);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.CULL_FACE;
-      } else {
-        this._state &= ~CAP.CULL_FACE;
-      }
-    }
-  }, {
-    key: "blend",
-    get: function get() {
-      return !!(this._state & CAP.BLEND);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.BLEND;
-      } else {
-        this._state &= ~CAP.BLEND;
-      }
-    }
-  }, {
-    key: "depthTest",
-    get: function get() {
-      return !!(this._state & CAP.DEPTH_TEST);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.DEPTH_TEST;
-      } else {
-        this._state &= ~CAP.DEPTH_TEST;
-      }
-    }
-  }, {
-    key: "stencilTest",
-    get: function get() {
-      return !!(this._state & CAP.STENCIL_TEST);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.STENCIL_TEST;
-      } else {
-        this._state &= ~CAP.STENCIL_TEST;
-      }
-    }
-  }, {
-    key: "colorMask",
-    get: function get() {
-      return !!(this._state & CAP.COLOR_MASK);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.COLOR_MASK;
-      } else {
-        this._state &= ~CAP.COLOR_MASK;
-      }
-    }
-  }, {
-    key: "depthMask",
-    get: function get() {
-      return !!(this._state & CAP.DEPTH_MASK);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.DEPTH_MASK;
-      } else {
-        this._state &= ~CAP.DEPTH_MASK;
-      }
-    }
-  }, {
-    key: "depthFunc",
-    get: function get() {
-      return ((this._state & MAT_STATE.DEPTH_FUNC_RANGE) >> MAT_STATE.DEPTH_FUNC_SHIFT) + GL.NEVER;
-    },
-    set: function set(value) {
-      value = value - GL.NEVER;
-      this._state &= ~MAT_STATE.DEPTH_FUNC_RANGE;
-      this._state |= value << MAT_STATE.DEPTH_FUNC_SHIFT;
-    }
-  }, {
-    key: "stencilMask",
-    get: function get() {
-      return !!(this._state & CAP.STENCIL_MASK);
-    },
-    set: function set(value) {
-      if (value) {
-        this._state |= CAP.STENCIL_MASK;
-      } else {
-        this._state &= ~CAP.STENCIL_MASK;
-      }
-    }
-  }, {
-    key: "blendFuncSrc",
-    get: function get() {
-      return stateToBlendFunc(this._state, MAT_STATE.BLEND_SRC_RANGE, MAT_STATE.BLEND_SRC_SHIFT);
-    },
-    set: function set(value) {
-      switch (value) {
-        case 0:
-        case 1:
-          break;
-        default:
-          value = value - GL.SRC_COLOR + 2;
-      }
-      this._state &= ~MAT_STATE.BLEND_SRC_RANGE;
-      this._state |= value << MAT_STATE.BLEND_SRC_SHIFT;
-    }
-  }, {
-    key: "blendFuncDst",
-    get: function get() {
-      return stateToBlendFunc(this._state, MAT_STATE.BLEND_DST_RANGE, MAT_STATE.BLEND_DST_SHIFT);
-    },
-    set: function set(value) {
-      switch (value) {
-        case 0:
-        case 1:
-          break;
-        default:
-          value = value - GL.SRC_COLOR + 2;
-      }
-      this._state &= ~MAT_STATE.BLEND_DST_RANGE;
-      this._state |= value << MAT_STATE.BLEND_DST_SHIFT;
-    }
-  }]);
-
-  return MaterialState;
-}();
-
-var MaterialSampler = function () {
-  function MaterialSampler(uniformName) {
-    _classCallCheck(this, MaterialSampler);
-
-    this._uniformName = uniformName;
-    this._texture = null;
-  }
-
-  _createClass(MaterialSampler, [{
-    key: "texture",
-    get: function get() {
-      return this._texture;
-    },
-    set: function set(value) {
-      this._texture = value;
-    }
-  }]);
-
-  return MaterialSampler;
-}();
-
-var MaterialUniform = function () {
-  function MaterialUniform(uniformName, defaultValue, length) {
-    _classCallCheck(this, MaterialUniform);
-
-    this._uniformName = uniformName;
-    this._value = defaultValue;
-    this._length = length;
-    if (!this._length) {
-      if (defaultValue instanceof Array) {
-        this._length = defaultValue.length;
-      } else {
-        this._length = 1;
-      }
-    }
-  }
-
-  _createClass(MaterialUniform, [{
-    key: "value",
-    get: function get() {
-      return this._value;
-    },
-    set: function set(value) {
-      this._value = value;
-    }
-  }]);
-
-  return MaterialUniform;
-}();
-
-var Material = exports.Material = function () {
-  function Material() {
-    _classCallCheck(this, Material);
-
-    this.state = new MaterialState();
-    this.renderOrder = RENDER_ORDER.DEFAULT;
-    this._samplers = [];
-    this._uniforms = [];
-  }
-
-  _createClass(Material, [{
-    key: "defineSampler",
-    value: function defineSampler(uniformName) {
-      var sampler = new MaterialSampler(uniformName);
-      this._samplers.push(sampler);
-      return sampler;
-    }
-  }, {
-    key: "defineUniform",
-    value: function defineUniform(uniformName) {
-      var defaultValue = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
-      var length = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
-
-      var uniform = new MaterialUniform(uniformName, defaultValue, length);
-      this._uniforms.push(uniform);
-      return uniform;
-    }
-  }, {
-    key: "getProgramDefines",
-    value: function getProgramDefines(renderPrimitive) {
-      return {};
-    }
-  }, {
-    key: "materialName",
-    get: function get() {
-      return null;
-    }
-  }, {
-    key: "vertexSource",
-    get: function get() {
-      return null;
-    }
-  }, {
-    key: "fragmentSource",
-    get: function get() {
-      return null;
-    }
-  }]);
-
-  return Material;
-}();
-
-/***/ }),
-
-/***/ "./src/core/node.js":
-/*!**************************!*\
-  !*** ./src/core/node.js ***!
-  \**************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Node = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var _ray = __webpack_require__(/*! ../math/ray.js */ "./src/math/ray.js");
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var DEFAULT_TRANSLATION = new Float32Array([0, 0, 0]);
-var DEFAULT_ROTATION = new Float32Array([0, 0, 0, 1]);
-var DEFAULT_SCALE = new Float32Array([1, 1, 1]);
-
-var tmpRayMatrix = _glMatrix.mat4.create();
-
-var Node = exports.Node = function () {
-  function Node() {
-    _classCallCheck(this, Node);
-
-    this.name = null; // Only for debugging
-    this.children = [];
-    this.parent = null;
-    this.visible = true;
-    this.selectable = false;
-
-    this._matrix = null;
-
-    this._dirtyTRS = false;
-    this._translation = null;
-    this._rotation = null;
-    this._scale = null;
-
-    this._dirtyWorldMatrix = false;
-    this._worldMatrix = null;
-
-    this._activeFrameId = -1;
-    this._hoverFrameId = -1;
-    this._renderPrimitives = null;
-    this._renderer = null;
-
-    this._selectHandler = null;
-  }
-
-  _createClass(Node, [{
-    key: '_setRenderer',
-    value: function _setRenderer(renderer) {
-      if (this._renderer == renderer) {
-        return;
-      }
-
-      if (this._renderer) {
-        // Changing the renderer removes any previously attached renderPrimitives
-        // from a different renderer.
-        this.clearRenderPrimitives();
-      }
-
-      this._renderer = renderer;
-      if (renderer) {
-        this.onRendererChanged(renderer);
-
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = this.children[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var child = _step.value;
-
-            child._setRenderer(renderer);
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-      }
-    }
-  }, {
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {}
-    // Override in other node types to respond to changes in the renderer.
-
-
-    // Create a clone of this node and all of it's children. Does not duplicate
-    // RenderPrimitives, the cloned nodes will be treated as new instances of the
-    // geometry.
-
-  }, {
-    key: 'clone',
-    value: function clone() {
-      var _this = this;
-
-      var cloneNode = new Node();
-      cloneNode.name = this.name;
-      cloneNode.visible = this.visible;
-      cloneNode._renderer = this._renderer;
-
-      cloneNode._dirtyTRS = this._dirtyTRS;
-
-      if (this._translation) {
-        cloneNode._translation = _glMatrix.vec3.create();
-        _glMatrix.vec3.copy(cloneNode._translation, this._translation);
-      }
-
-      if (this._rotation) {
-        cloneNode._rotation = _glMatrix.quat.create();
-        _glMatrix.quat.copy(cloneNode._rotation, this._rotation);
-      }
-
-      if (this._scale) {
-        cloneNode._scale = _glMatrix.vec3.create();
-        _glMatrix.vec3.copy(cloneNode._scale, this._scale);
-      }
-
-      // Only copy the matrices if they're not already dirty.
-      if (!cloneNode._dirtyTRS && this._matrix) {
-        cloneNode._matrix = _glMatrix.mat4.create();
-        _glMatrix.mat4.copy(cloneNode._matrix, this._matrix);
-      }
-
-      cloneNode._dirtyWorldMatrix = this._dirtyWorldMatrix;
-      if (!cloneNode._dirtyWorldMatrix && this._worldMatrix) {
-        cloneNode._worldMatrix = _glMatrix.mat4.create();
-        _glMatrix.mat4.copy(cloneNode._worldMatrix, this._worldMatrix);
-      }
-
-      this.waitForComplete().then(function () {
-        if (_this._renderPrimitives) {
-          var _iteratorNormalCompletion2 = true;
-          var _didIteratorError2 = false;
-          var _iteratorError2 = undefined;
-
-          try {
-            for (var _iterator2 = _this._renderPrimitives[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-              var primitive = _step2.value;
-
-              cloneNode.addRenderPrimitive(primitive);
-            }
-          } catch (err) {
-            _didIteratorError2 = true;
-            _iteratorError2 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion2 && _iterator2.return) {
-                _iterator2.return();
-              }
-            } finally {
-              if (_didIteratorError2) {
-                throw _iteratorError2;
-              }
-            }
-          }
-        }
-
-        var _iteratorNormalCompletion3 = true;
-        var _didIteratorError3 = false;
-        var _iteratorError3 = undefined;
-
-        try {
-          for (var _iterator3 = _this.children[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-            var child = _step3.value;
-
-            cloneNode.addNode(child.clone());
-          }
-        } catch (err) {
-          _didIteratorError3 = true;
-          _iteratorError3 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion3 && _iterator3.return) {
-              _iterator3.return();
-            }
-          } finally {
-            if (_didIteratorError3) {
-              throw _iteratorError3;
-            }
-          }
-        }
-      });
-
-      return cloneNode;
-    }
-  }, {
-    key: 'markActive',
-    value: function markActive(frameId) {
-      if (this.visible && this._renderPrimitives) {
-        this._activeFrameId = frameId;
-        var _iteratorNormalCompletion4 = true;
-        var _didIteratorError4 = false;
-        var _iteratorError4 = undefined;
-
-        try {
-          for (var _iterator4 = this._renderPrimitives[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-            var primitive = _step4.value;
-
-            primitive.markActive(frameId);
-          }
-        } catch (err) {
-          _didIteratorError4 = true;
-          _iteratorError4 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion4 && _iterator4.return) {
-              _iterator4.return();
-            }
-          } finally {
-            if (_didIteratorError4) {
-              throw _iteratorError4;
-            }
-          }
-        }
-      }
-
-      var _iteratorNormalCompletion5 = true;
-      var _didIteratorError5 = false;
-      var _iteratorError5 = undefined;
-
-      try {
-        for (var _iterator5 = this.children[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-          var child = _step5.value;
-
-          if (child.visible) {
-            child.markActive(frameId);
-          }
-        }
-      } catch (err) {
-        _didIteratorError5 = true;
-        _iteratorError5 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion5 && _iterator5.return) {
-            _iterator5.return();
-          }
-        } finally {
-          if (_didIteratorError5) {
-            throw _iteratorError5;
-          }
-        }
-      }
-    }
-  }, {
-    key: 'addNode',
-    value: function addNode(value) {
-      if (!value || value.parent == this) {
-        return;
-      }
-
-      if (value.parent) {
-        value.parent.removeNode(value);
-      }
-      value.parent = this;
-
-      this.children.push(value);
-
-      if (this._renderer) {
-        value._setRenderer(this._renderer);
-      }
-    }
-  }, {
-    key: 'removeNode',
-    value: function removeNode(value) {
-      var i = this.children.indexOf(value);
-      if (i > -1) {
-        this.children.splice(i, 1);
-        value.parent = null;
-      }
-    }
-  }, {
-    key: 'clearNodes',
-    value: function clearNodes() {
-      var _iteratorNormalCompletion6 = true;
-      var _didIteratorError6 = false;
-      var _iteratorError6 = undefined;
-
-      try {
-        for (var _iterator6 = this.children[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-          var child = _step6.value;
-
-          child.parent = null;
-        }
-      } catch (err) {
-        _didIteratorError6 = true;
-        _iteratorError6 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion6 && _iterator6.return) {
-            _iterator6.return();
-          }
-        } finally {
-          if (_didIteratorError6) {
-            throw _iteratorError6;
-          }
-        }
-      }
-
-      this.children = [];
-    }
-  }, {
-    key: 'setMatrixDirty',
-    value: function setMatrixDirty() {
-      if (!this._dirtyWorldMatrix) {
-        this._dirtyWorldMatrix = true;
-        var _iteratorNormalCompletion7 = true;
-        var _didIteratorError7 = false;
-        var _iteratorError7 = undefined;
-
-        try {
-          for (var _iterator7 = this.children[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-            var child = _step7.value;
-
-            child.setMatrixDirty();
-          }
-        } catch (err) {
-          _didIteratorError7 = true;
-          _iteratorError7 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion7 && _iterator7.return) {
-              _iterator7.return();
-            }
-          } finally {
-            if (_didIteratorError7) {
-              throw _iteratorError7;
-            }
-          }
-        }
-      }
-    }
-  }, {
-    key: '_updateLocalMatrix',
-    value: function _updateLocalMatrix() {
-      if (!this._matrix) {
-        this._matrix = _glMatrix.mat4.create();
-      }
-
-      if (this._dirtyTRS) {
-        this._dirtyTRS = false;
-        _glMatrix.mat4.fromRotationTranslationScale(this._matrix, this._rotation || DEFAULT_ROTATION, this._translation || DEFAULT_TRANSLATION, this._scale || DEFAULT_SCALE);
-      }
-
-      return this._matrix;
-    }
-  }, {
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      var _this2 = this;
-
-      var childPromises = [];
-      var _iteratorNormalCompletion8 = true;
-      var _didIteratorError8 = false;
-      var _iteratorError8 = undefined;
-
-      try {
-        for (var _iterator8 = this.children[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-          var child = _step8.value;
-
-          childPromises.push(child.waitForComplete());
-        }
-      } catch (err) {
-        _didIteratorError8 = true;
-        _iteratorError8 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion8 && _iterator8.return) {
-            _iterator8.return();
-          }
-        } finally {
-          if (_didIteratorError8) {
-            throw _iteratorError8;
-          }
-        }
-      }
-
-      if (this._renderPrimitives) {
-        var _iteratorNormalCompletion9 = true;
-        var _didIteratorError9 = false;
-        var _iteratorError9 = undefined;
-
-        try {
-          for (var _iterator9 = this._renderPrimitives[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-            var primitive = _step9.value;
-
-            childPromises.push(primitive.waitForComplete());
-          }
-        } catch (err) {
-          _didIteratorError9 = true;
-          _iteratorError9 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion9 && _iterator9.return) {
-              _iterator9.return();
-            }
-          } finally {
-            if (_didIteratorError9) {
-              throw _iteratorError9;
-            }
-          }
-        }
-      }
-      return Promise.all(childPromises).then(function () {
-        return _this2;
-      });
-    }
-  }, {
-    key: 'addRenderPrimitive',
-    value: function addRenderPrimitive(primitive) {
-      if (!this._renderPrimitives) {
-        this._renderPrimitives = [primitive];
-      } else {
-        this._renderPrimitives.push(primitive);
-      }
-      primitive._instances.push(this);
-    }
-  }, {
-    key: 'removeRenderPrimitive',
-    value: function removeRenderPrimitive(primitive) {
-      if (!this._renderPrimitives) {
-        return;
-      }
-
-      var index = this._renderPrimitives._instances.indexOf(primitive);
-      if (index > -1) {
-        this._renderPrimitives._instances.splice(index, 1);
-
-        index = primitive._instances.indexOf(this);
-        if (index > -1) {
-          primitive._instances.splice(index, 1);
-        }
-
-        if (!this._renderPrimitives.length) {
-          this._renderPrimitives = null;
-        }
-      }
-    }
-  }, {
-    key: 'clearRenderPrimitives',
-    value: function clearRenderPrimitives() {
-      if (this._renderPrimitives) {
-        var _iteratorNormalCompletion10 = true;
-        var _didIteratorError10 = false;
-        var _iteratorError10 = undefined;
-
-        try {
-          for (var _iterator10 = this._renderPrimitives[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
-            var primitive = _step10.value;
-
-            var index = primitive._instances.indexOf(this);
-            if (index > -1) {
-              primitive._instances.splice(index, 1);
-            }
-          }
-        } catch (err) {
-          _didIteratorError10 = true;
-          _iteratorError10 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion10 && _iterator10.return) {
-              _iterator10.return();
-            }
-          } finally {
-            if (_didIteratorError10) {
-              throw _iteratorError10;
-            }
-          }
-        }
-
-        this._renderPrimitives = null;
-      }
-    }
-  }, {
-    key: '_hitTestSelectableNode',
-    value: function _hitTestSelectableNode(ray) {
-      if (this._renderPrimitives) {
-        var localRay = null;
-        var _iteratorNormalCompletion11 = true;
-        var _didIteratorError11 = false;
-        var _iteratorError11 = undefined;
-
-        try {
-          for (var _iterator11 = this._renderPrimitives[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
-            var primitive = _step11.value;
-
-            if (primitive._min) {
-              if (!localRay) {
-                _glMatrix.mat4.invert(tmpRayMatrix, this.worldMatrix);
-                _glMatrix.mat4.multiply(tmpRayMatrix, tmpRayMatrix, ray.transformMatrix);
-                localRay = new _ray.Ray(tmpRayMatrix);
-              }
-              var intersection = localRay.intersectsAABB(primitive._min, primitive._max);
-              if (intersection) {
-                _glMatrix.vec3.transformMat4(intersection, intersection, this.worldMatrix);
-                return intersection;
-              }
-            }
-          }
-        } catch (err) {
-          _didIteratorError11 = true;
-          _iteratorError11 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion11 && _iterator11.return) {
-              _iterator11.return();
-            }
-          } finally {
-            if (_didIteratorError11) {
-              throw _iteratorError11;
-            }
-          }
-        }
-      }
-      var _iteratorNormalCompletion12 = true;
-      var _didIteratorError12 = false;
-      var _iteratorError12 = undefined;
-
-      try {
-        for (var _iterator12 = this.children[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
-          var child = _step12.value;
-
-          var _intersection = child._hitTestSelectableNode(ray);
-          if (_intersection) {
-            return _intersection;
-          }
-        }
-      } catch (err) {
-        _didIteratorError12 = true;
-        _iteratorError12 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion12 && _iterator12.return) {
-            _iterator12.return();
-          }
-        } finally {
-          if (_didIteratorError12) {
-            throw _iteratorError12;
-          }
-        }
-      }
-
-      return null;
-    }
-  }, {
-    key: 'hitTest',
-    value: function hitTest(ray) {
-      if (this.selectable && this.visible) {
-        var intersection = this._hitTestSelectableNode(ray);
-
-        if (intersection) {
-          var origin = _glMatrix.vec3.fromValues(ray.origin.x, ray.origin.y, ray.origin.z);
-          return {
-            node: this,
-            intersection: intersection,
-            distance: _glMatrix.vec3.distance(origin, intersection)
-          };
-        }
-        return null;
-      }
-
-      var result = null;
-      var _iteratorNormalCompletion13 = true;
-      var _didIteratorError13 = false;
-      var _iteratorError13 = undefined;
-
-      try {
-        for (var _iterator13 = this.children[Symbol.iterator](), _step13; !(_iteratorNormalCompletion13 = (_step13 = _iterator13.next()).done); _iteratorNormalCompletion13 = true) {
-          var child = _step13.value;
-
-          var childResult = child.hitTest(ray);
-          if (childResult) {
-            if (!result || result.distance > childResult.distance) {
-              result = childResult;
-            }
-          }
-        }
-      } catch (err) {
-        _didIteratorError13 = true;
-        _iteratorError13 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion13 && _iterator13.return) {
-            _iterator13.return();
-          }
-        } finally {
-          if (_didIteratorError13) {
-            throw _iteratorError13;
-          }
-        }
-      }
-
-      return result;
-    }
-  }, {
-    key: 'onSelect',
-    value: function onSelect(value) {
-      this._selectHandler = value;
-    }
-  }, {
-    key: 'handleSelect',
-
-
-    // Called when a selectable node is selected.
-    value: function handleSelect() {
-      if (this._selectHandler) {
-        this._selectHandler();
-      }
-    }
-
-    // Called when a selectable element is pointed at.
-
-  }, {
-    key: 'onHoverStart',
-    value: function onHoverStart() {}
-
-    // Called when a selectable element is no longer pointed at.
-
-  }, {
-    key: 'onHoverEnd',
-    value: function onHoverEnd() {}
-  }, {
-    key: '_update',
-    value: function _update(timestamp, frameDelta) {
-      this.onUpdate(timestamp, frameDelta);
-
-      var _iteratorNormalCompletion14 = true;
-      var _didIteratorError14 = false;
-      var _iteratorError14 = undefined;
-
-      try {
-        for (var _iterator14 = this.children[Symbol.iterator](), _step14; !(_iteratorNormalCompletion14 = (_step14 = _iterator14.next()).done); _iteratorNormalCompletion14 = true) {
-          var child = _step14.value;
-
-          child._update(timestamp, frameDelta);
-        }
-      } catch (err) {
-        _didIteratorError14 = true;
-        _iteratorError14 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion14 && _iterator14.return) {
-            _iterator14.return();
-          }
-        } finally {
-          if (_didIteratorError14) {
-            throw _iteratorError14;
-          }
-        }
-      }
-    }
-
-    // Called every frame so that the nodes can animate themselves
-
-  }, {
-    key: 'onUpdate',
-    value: function onUpdate(timestamp, frameDelta) {}
-  }, {
-    key: 'matrix',
-    set: function set(value) {
-      if (value) {
-        if (!this._matrix) {
-          this._matrix = _glMatrix.mat4.create();
-        }
-        _glMatrix.mat4.copy(this._matrix, value);
-      } else {
-        this._matrix = null;
-      }
-      this.setMatrixDirty();
-      this._dirtyTRS = false;
-      this._translation = null;
-      this._rotation = null;
-      this._scale = null;
-    },
-    get: function get() {
-      this.setMatrixDirty();
-
-      return this._updateLocalMatrix();
-    }
-  }, {
-    key: 'worldMatrix',
-    get: function get() {
-      if (!this._worldMatrix) {
-        this._dirtyWorldMatrix = true;
-        this._worldMatrix = _glMatrix.mat4.create();
-      }
-
-      if (this._dirtyWorldMatrix || this._dirtyTRS) {
-        if (this.parent) {
-          // TODO: Some optimizations that could be done here if the node matrix
-          // is an identity matrix.
-          _glMatrix.mat4.mul(this._worldMatrix, this.parent.worldMatrix, this._updateLocalMatrix());
-        } else {
-          _glMatrix.mat4.copy(this._worldMatrix, this._updateLocalMatrix());
-        }
-        this._dirtyWorldMatrix = false;
-      }
-
-      return this._worldMatrix;
-    }
-
-    // TODO: Decompose matrix when fetching these?
-
-  }, {
-    key: 'translation',
-    set: function set(value) {
-      if (value != null) {
-        this._dirtyTRS = true;
-        this.setMatrixDirty();
-      }
-      this._translation = value;
-    },
-    get: function get() {
-      this._dirtyTRS = true;
-      this.setMatrixDirty();
-      if (!this._translation) {
-        this._translation = _glMatrix.vec3.clone(DEFAULT_TRANSLATION);
-      }
-      return this._translation;
-    }
-  }, {
-    key: 'rotation',
-    set: function set(value) {
-      if (value != null) {
-        this._dirtyTRS = true;
-        this.setMatrixDirty();
-      }
-      this._rotation = value;
-    },
-    get: function get() {
-      this._dirtyTRS = true;
-      this.setMatrixDirty();
-      if (!this._rotation) {
-        this._rotation = _glMatrix.quat.clone(DEFAULT_ROTATION);
-      }
-      return this._rotation;
-    }
-  }, {
-    key: 'scale',
-    set: function set(value) {
-      if (value != null) {
-        this._dirtyTRS = true;
-        this.setMatrixDirty();
-      }
-      this._scale = value;
-    },
-    get: function get() {
-      this._dirtyTRS = true;
-      this.setMatrixDirty();
-      if (!this._scale) {
-        this._scale = _glMatrix.vec3.clone(DEFAULT_SCALE);
-      }
-      return this._scale;
-    }
-  }, {
-    key: 'renderPrimitives',
-    get: function get() {
-      return this._renderPrimitives;
-    }
-  }, {
-    key: 'selectHandler',
-    get: function get() {
-      return this._selectHandler;
-    }
-  }]);
-
-  return Node;
-}();
-
-/***/ }),
-
-/***/ "./src/core/primitive.js":
-/*!*******************************!*\
-  !*** ./src/core/primitive.js ***!
-  \*******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Primitive = exports.PrimitiveAttribute = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var PrimitiveAttribute = exports.PrimitiveAttribute = function PrimitiveAttribute(name, buffer, componentCount, componentType, stride, byteOffset) {
-  _classCallCheck(this, PrimitiveAttribute);
-
-  this.name = name;
-  this.buffer = buffer;
-  this.componentCount = componentCount || 3;
-  this.componentType = componentType || 5126; // gl.FLOAT;
-  this.stride = stride || 0;
-  this.byteOffset = byteOffset || 0;
-  this.normalized = false;
-};
-
-var Primitive = exports.Primitive = function () {
-  function Primitive(attributes, elementCount, mode) {
-    _classCallCheck(this, Primitive);
-
-    this.attributes = attributes || [];
-    this.elementCount = elementCount || 0;
-    this.mode = mode || 4; // gl.TRIANGLES;
-    this.indexBuffer = null;
-    this.indexByteOffset = 0;
-    this.indexType = 0;
-    this._min = null;
-    this._max = null;
-  }
-
-  _createClass(Primitive, [{
-    key: 'setIndexBuffer',
-    value: function setIndexBuffer(indexBuffer, byteOffset, indexType) {
-      this.indexBuffer = indexBuffer;
-      this.indexByteOffset = byteOffset || 0;
-      this.indexType = indexType || 5123; // gl.UNSIGNED_SHORT;
-    }
-  }, {
-    key: 'setBounds',
-    value: function setBounds(min, max) {
-      this._min = _glMatrix.vec3.clone(min);
-      this._max = _glMatrix.vec3.clone(max);
-    }
-  }]);
-
-  return Primitive;
-}();
-
-/***/ }),
-
-/***/ "./src/core/program.js":
-/*!*****************************!*\
-  !*** ./src/core/program.js ***!
-  \*****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var Program = exports.Program = function () {
-  function Program(gl, vertSrc, fragSrc, attribMap, defines) {
-    _classCallCheck(this, Program);
-
-    this._gl = gl;
-    this.program = gl.createProgram();
-    this.attrib = null;
-    this.uniform = null;
-    this.defines = {};
-
-    this._firstUse = true;
-    this._nextUseCallbacks = [];
-
-    var definesString = '';
-    if (defines) {
-      for (var define in defines) {
-        this.defines[define] = defines[define];
-        definesString += '#define ' + define + ' ' + defines[define] + '\n';
-      }
-    }
-
-    this._vertShader = gl.createShader(gl.VERTEX_SHADER);
-    gl.attachShader(this.program, this._vertShader);
-    gl.shaderSource(this._vertShader, definesString + vertSrc);
-    gl.compileShader(this._vertShader);
-
-    this._fragShader = gl.createShader(gl.FRAGMENT_SHADER);
-    gl.attachShader(this.program, this._fragShader);
-    gl.shaderSource(this._fragShader, definesString + fragSrc);
-    gl.compileShader(this._fragShader);
-
-    if (attribMap) {
-      this.attrib = {};
-      for (var attribName in attribMap) {
-        gl.bindAttribLocation(this.program, attribMap[attribName], attribName);
-        this.attrib[attribName] = attribMap[attribName];
-      }
-    }
-
-    gl.linkProgram(this.program);
-  }
-
-  _createClass(Program, [{
-    key: 'onNextUse',
-    value: function onNextUse(callback) {
-      this._nextUseCallbacks.push(callback);
-    }
-  }, {
-    key: 'use',
-    value: function use() {
-      var gl = this._gl;
-
-      // If this is the first time the program has been used do all the error checking and
-      // attrib/uniform querying needed.
-      if (this._firstUse) {
-        this._firstUse = false;
-        if (!gl.getProgramParameter(this.program, gl.LINK_STATUS)) {
-          if (!gl.getShaderParameter(this._vertShader, gl.COMPILE_STATUS)) {
-            console.error('Vertex shader compile error: ' + gl.getShaderInfoLog(this._vertShader));
-          } else if (!gl.getShaderParameter(this._fragShader, gl.COMPILE_STATUS)) {
-            console.error('Fragment shader compile error: ' + gl.getShaderInfoLog(this._fragShader));
-          } else {
-            console.error('Program link error: ' + gl.getProgramInfoLog(this.program));
-          }
-          gl.deleteProgram(this.program);
-          this.program = null;
-        } else {
-          if (!this.attrib) {
-            this.attrib = {};
-            var attribCount = gl.getProgramParameter(this.program, gl.ACTIVE_ATTRIBUTES);
-            for (var i = 0; i < attribCount; i++) {
-              var attribInfo = gl.getActiveAttrib(this.program, i);
-              this.attrib[attribInfo.name] = gl.getAttribLocation(this.program, attribInfo.name);
-            }
-          }
-
-          this.uniform = {};
-          var uniformCount = gl.getProgramParameter(this.program, gl.ACTIVE_UNIFORMS);
-          var uniformName = '';
-          for (var _i = 0; _i < uniformCount; _i++) {
-            var uniformInfo = gl.getActiveUniform(this.program, _i);
-            uniformName = uniformInfo.name.replace('[0]', '');
-            this.uniform[uniformName] = gl.getUniformLocation(this.program, uniformName);
-          }
-        }
-        gl.deleteShader(this._vertShader);
-        gl.deleteShader(this._fragShader);
-      }
-
-      gl.useProgram(this.program);
-
-      if (this._nextUseCallbacks.length) {
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = this._nextUseCallbacks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var callback = _step.value;
-
-            callback(this);
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-
-        this._nextUseCallbacks = [];
-      }
-    }
-  }]);
-
-  return Program;
-}();
-
-/***/ }),
-
-/***/ "./src/core/renderer.js":
-/*!******************************!*\
-  !*** ./src/core/renderer.js ***!
-  \******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Renderer = exports.RenderTexture = exports.RenderView = exports.ATTRIB_MASK = exports.ATTRIB = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-exports.createWebGLContext = createWebGLContext;
-
-var _material = __webpack_require__(/*! ./material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ./node.js */ "./src/core/node.js");
-
-var _program = __webpack_require__(/*! ./program.js */ "./src/core/program.js");
-
-var _texture = __webpack_require__(/*! ./texture.js */ "./src/core/texture.js");
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var ATTRIB = exports.ATTRIB = {
-  POSITION: 1,
-  NORMAL: 2,
-  TANGENT: 3,
-  TEXCOORD_0: 4,
-  TEXCOORD_1: 5,
-  COLOR_0: 6
-};
-
-var ATTRIB_MASK = exports.ATTRIB_MASK = {
-  POSITION: 0x0001,
-  NORMAL: 0x0002,
-  TANGENT: 0x0004,
-  TEXCOORD_0: 0x0008,
-  TEXCOORD_1: 0x0010,
-  COLOR_0: 0x0020
-};
-
-var GL = WebGLRenderingContext; // For enums
-
-var DEF_LIGHT_DIR = new Float32Array([-0.1, -1.0, -0.2]);
-var DEF_LIGHT_COLOR = new Float32Array([3.0, 3.0, 3.0]);
-
-var PRECISION_REGEX = new RegExp('precision (lowp|mediump|highp) float;');
-
-var VERTEX_SHADER_SINGLE_ENTRY = '\nuniform mat4 PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX;\n\nvoid main() {\n  gl_Position = vertex_main(PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX);\n}\n';
-
-var VERTEX_SHADER_MULTI_ENTRY = '\n#ERROR Multiview rendering is not implemented\nvoid main() {\n  gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n}\n';
-
-var FRAGMENT_SHADER_ENTRY = '\nvoid main() {\n  gl_FragColor = fragment_main();\n}\n';
-
-function isPowerOfTwo(n) {
-  return (n & n - 1) === 0;
-}
-
-// Creates a WebGL context and initializes it with some common default state.
-function createWebGLContext(glAttribs) {
-  glAttribs = glAttribs || { alpha: false };
-
-  var webglCanvas = document.createElement('canvas');
-  var contextTypes = glAttribs.webgl2 ? ['webgl2'] : ['webgl', 'experimental-webgl'];
-  var context = null;
-
-  var _iteratorNormalCompletion = true;
-  var _didIteratorError = false;
-  var _iteratorError = undefined;
-
-  try {
-    for (var _iterator = contextTypes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-      var contextType = _step.value;
-
-      context = webglCanvas.getContext(contextType, glAttribs);
-      if (context) {
-        break;
-      }
-    }
-  } catch (err) {
-    _didIteratorError = true;
-    _iteratorError = err;
-  } finally {
-    try {
-      if (!_iteratorNormalCompletion && _iterator.return) {
-        _iterator.return();
-      }
-    } finally {
-      if (_didIteratorError) {
-        throw _iteratorError;
-      }
-    }
-  }
-
-  if (!context) {
-    var webglType = glAttribs.webgl2 ? 'WebGL 2' : 'WebGL';
-    console.error('This browser does not support ' + webglType + '.');
-    return null;
-  }
-
-  return context;
-}
-
-var RenderView = exports.RenderView = function () {
-  function RenderView(projectionMatrix, viewMatrix) {
-    var viewport = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
-    var eye = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 'left';
-
-    _classCallCheck(this, RenderView);
-
-    this.projectionMatrix = projectionMatrix;
-    this.viewMatrix = viewMatrix;
-    this.viewport = viewport;
-    // If an eye isn't given the left eye is assumed.
-    this._eye = eye;
-    this._eyeIndex = eye == 'left' ? 0 : 1;
-  }
-
-  _createClass(RenderView, [{
-    key: 'eye',
-    get: function get() {
-      return this._eye;
-    },
-    set: function set(value) {
-      this._eye = value;
-      this._eyeIndex = value == 'left' ? 0 : 1;
-    }
-  }, {
-    key: 'eyeIndex',
-    get: function get() {
-      return this._eyeIndex;
-    }
-  }]);
-
-  return RenderView;
-}();
-
-var RenderBuffer = function () {
-  function RenderBuffer(target, usage, buffer) {
-    var _this = this;
-
-    var length = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
-
-    _classCallCheck(this, RenderBuffer);
-
-    this._target = target;
-    this._usage = usage;
-    this._length = length;
-    if (buffer instanceof Promise) {
-      this._buffer = null;
-      this._promise = buffer.then(function (buffer) {
-        _this._buffer = buffer;
-        return _this;
-      });
-    } else {
-      this._buffer = buffer;
-      this._promise = Promise.resolve(this);
-    }
-  }
-
-  _createClass(RenderBuffer, [{
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      return this._promise;
-    }
-  }]);
-
-  return RenderBuffer;
-}();
-
-var RenderPrimitiveAttribute = function RenderPrimitiveAttribute(primitiveAttribute) {
-  _classCallCheck(this, RenderPrimitiveAttribute);
-
-  this._attrib_index = ATTRIB[primitiveAttribute.name];
-  this._componentCount = primitiveAttribute.componentCount;
-  this._componentType = primitiveAttribute.componentType;
-  this._stride = primitiveAttribute.stride;
-  this._byteOffset = primitiveAttribute.byteOffset;
-  this._normalized = primitiveAttribute.normalized;
-};
-
-var RenderPrimitiveAttributeBuffer = function RenderPrimitiveAttributeBuffer(buffer) {
-  _classCallCheck(this, RenderPrimitiveAttributeBuffer);
-
-  this._buffer = buffer;
-  this._attributes = [];
-};
-
-var RenderPrimitive = function () {
-  function RenderPrimitive(primitive) {
-    _classCallCheck(this, RenderPrimitive);
-
-    this._activeFrameId = 0;
-    this._instances = [];
-    this._material = null;
-
-    this.setPrimitive(primitive);
-  }
-
-  _createClass(RenderPrimitive, [{
-    key: 'setPrimitive',
-    value: function setPrimitive(primitive) {
-      this._mode = primitive.mode;
-      this._elementCount = primitive.elementCount;
-      this._promise = null;
-      this._vao = null;
-      this._complete = false;
-      this._attributeBuffers = [];
-      this._attributeMask = 0;
-
-      var _iteratorNormalCompletion2 = true;
-      var _didIteratorError2 = false;
-      var _iteratorError2 = undefined;
-
-      try {
-        for (var _iterator2 = primitive.attributes[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-          var attribute = _step2.value;
-
-          this._attributeMask |= ATTRIB_MASK[attribute.name];
-          var renderAttribute = new RenderPrimitiveAttribute(attribute);
-          var foundBuffer = false;
-          var _iteratorNormalCompletion3 = true;
-          var _didIteratorError3 = false;
-          var _iteratorError3 = undefined;
-
-          try {
-            for (var _iterator3 = this._attributeBuffers[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-              var attributeBuffer = _step3.value;
-
-              if (attributeBuffer._buffer == attribute.buffer) {
-                attributeBuffer._attributes.push(renderAttribute);
-                foundBuffer = true;
-                break;
-              }
-            }
-          } catch (err) {
-            _didIteratorError3 = true;
-            _iteratorError3 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion3 && _iterator3.return) {
-                _iterator3.return();
-              }
-            } finally {
-              if (_didIteratorError3) {
-                throw _iteratorError3;
-              }
-            }
-          }
-
-          if (!foundBuffer) {
-            var _attributeBuffer = new RenderPrimitiveAttributeBuffer(attribute.buffer);
-            _attributeBuffer._attributes.push(renderAttribute);
-            this._attributeBuffers.push(_attributeBuffer);
-          }
-        }
-      } catch (err) {
-        _didIteratorError2 = true;
-        _iteratorError2 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion2 && _iterator2.return) {
-            _iterator2.return();
-          }
-        } finally {
-          if (_didIteratorError2) {
-            throw _iteratorError2;
-          }
-        }
-      }
-
-      this._indexBuffer = null;
-      this._indexByteOffset = 0;
-      this._indexType = 0;
-
-      if (primitive.indexBuffer) {
-        this._indexByteOffset = primitive.indexByteOffset;
-        this._indexType = primitive.indexType;
-        this._indexBuffer = primitive.indexBuffer;
-      }
-
-      if (primitive._min) {
-        this._min = _glMatrix.vec3.clone(primitive._min);
-        this._max = _glMatrix.vec3.clone(primitive._max);
-      } else {
-        this._min = null;
-        this._max = null;
-      }
-
-      if (this._material != null) {
-        this.waitForComplete(); // To flip the _complete flag.
-      }
-    }
-  }, {
-    key: 'setRenderMaterial',
-    value: function setRenderMaterial(material) {
-      this._material = material;
-      this._promise = null;
-      this._complete = false;
-
-      if (this._material != null) {
-        this.waitForComplete(); // To flip the _complete flag.
-      }
-    }
-  }, {
-    key: 'markActive',
-    value: function markActive(frameId) {
-      if (this._complete && this._activeFrameId != frameId) {
-        if (this._material) {
-          if (!this._material.markActive(frameId)) {
-            return;
-          }
-        }
-        this._activeFrameId = frameId;
-      }
-    }
-  }, {
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      var _this2 = this;
-
-      if (!this._promise) {
-        if (!this._material) {
-          return Promise.reject('RenderPrimitive does not have a material');
-        }
-
-        var completionPromises = [];
-
-        var _iteratorNormalCompletion4 = true;
-        var _didIteratorError4 = false;
-        var _iteratorError4 = undefined;
-
-        try {
-          for (var _iterator4 = this._attributeBuffers[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-            var attributeBuffer = _step4.value;
-
-            if (!attributeBuffer._buffer._buffer) {
-              completionPromises.push(attributeBuffer._buffer._promise);
-            }
-          }
-        } catch (err) {
-          _didIteratorError4 = true;
-          _iteratorError4 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion4 && _iterator4.return) {
-              _iterator4.return();
-            }
-          } finally {
-            if (_didIteratorError4) {
-              throw _iteratorError4;
-            }
-          }
-        }
-
-        if (this._indexBuffer && !this._indexBuffer._buffer) {
-          completionPromises.push(this._indexBuffer._promise);
-        }
-
-        this._promise = Promise.all(completionPromises).then(function () {
-          _this2._complete = true;
-          return _this2;
-        });
-      }
-      return this._promise;
-    }
-  }, {
-    key: 'samplers',
-    get: function get() {
-      return this._material._samplerDictionary;
-    }
-  }, {
-    key: 'uniforms',
-    get: function get() {
-      return this._material._uniform_dictionary;
-    }
-  }]);
-
-  return RenderPrimitive;
-}();
-
-var RenderTexture = exports.RenderTexture = function () {
-  function RenderTexture(texture) {
-    _classCallCheck(this, RenderTexture);
-
-    this._texture = texture;
-    this._complete = false;
-    this._activeFrameId = 0;
-    this._activeCallback = null;
-  }
-
-  _createClass(RenderTexture, [{
-    key: 'markActive',
-    value: function markActive(frameId) {
-      if (this._activeCallback && this._activeFrameId != frameId) {
-        this._activeFrameId = frameId;
-        this._activeCallback(this);
-      }
-    }
-  }]);
-
-  return RenderTexture;
-}();
-
-var inverseMatrix = _glMatrix.mat4.create();
-
-function setCap(gl, glEnum, cap, prevState, state) {
-  var change = (state & cap) - (prevState & cap);
-  if (!change) {
-    return;
-  }
-
-  if (change > 0) {
-    gl.enable(glEnum);
-  } else {
-    gl.disable(glEnum);
-  }
-}
-
-var RenderMaterialSampler = function () {
-  function RenderMaterialSampler(renderer, materialSampler, index) {
-    _classCallCheck(this, RenderMaterialSampler);
-
-    this._renderer = renderer;
-    this._uniformName = materialSampler._uniformName;
-    this._renderTexture = renderer._getRenderTexture(materialSampler._texture);
-    this._index = index;
-  }
-
-  _createClass(RenderMaterialSampler, [{
-    key: 'texture',
-    set: function set(value) {
-      this._renderTexture = this._renderer._getRenderTexture(value);
-    }
-  }]);
-
-  return RenderMaterialSampler;
-}();
-
-var RenderMaterialUniform = function () {
-  function RenderMaterialUniform(materialUniform) {
-    _classCallCheck(this, RenderMaterialUniform);
-
-    this._uniformName = materialUniform._uniformName;
-    this._uniform = null;
-    this._length = materialUniform._length;
-    if (materialUniform._value instanceof Array) {
-      this._value = new Float32Array(materialUniform._value);
-    } else {
-      this._value = new Float32Array([materialUniform._value]);
-    }
-  }
-
-  _createClass(RenderMaterialUniform, [{
-    key: 'value',
-    set: function set(value) {
-      if (this._value.length == 1) {
-        this._value[0] = value;
-      } else {
-        for (var i = 0; i < this._value.length; ++i) {
-          this._value[i] = value[i];
-        }
-      }
-    }
-  }]);
-
-  return RenderMaterialUniform;
-}();
-
-var RenderMaterial = function () {
-  function RenderMaterial(renderer, material, program) {
-    _classCallCheck(this, RenderMaterial);
-
-    this._program = program;
-    this._state = material.state._state;
-    this._activeFrameId = 0;
-    this._completeForActiveFrame = false;
-
-    this._samplerDictionary = {};
-    this._samplers = [];
-    for (var i = 0; i < material._samplers.length; ++i) {
-      var renderSampler = new RenderMaterialSampler(renderer, material._samplers[i], i);
-      this._samplers.push(renderSampler);
-      this._samplerDictionary[renderSampler._uniformName] = renderSampler;
-    }
-
-    this._uniform_dictionary = {};
-    this._uniforms = [];
-    var _iteratorNormalCompletion5 = true;
-    var _didIteratorError5 = false;
-    var _iteratorError5 = undefined;
-
-    try {
-      for (var _iterator5 = material._uniforms[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-        var uniform = _step5.value;
-
-        var renderUniform = new RenderMaterialUniform(uniform);
-        this._uniforms.push(renderUniform);
-        this._uniform_dictionary[renderUniform._uniformName] = renderUniform;
-      }
-    } catch (err) {
-      _didIteratorError5 = true;
-      _iteratorError5 = err;
-    } finally {
-      try {
-        if (!_iteratorNormalCompletion5 && _iterator5.return) {
-          _iterator5.return();
-        }
-      } finally {
-        if (_didIteratorError5) {
-          throw _iteratorError5;
-        }
-      }
-    }
-
-    this._firstBind = true;
-
-    this._renderOrder = material.renderOrder;
-    if (this._renderOrder == _material.RENDER_ORDER.DEFAULT) {
-      if (this._state & _material.CAP.BLEND) {
-        this._renderOrder = _material.RENDER_ORDER.TRANSPARENT;
-      } else {
-        this._renderOrder = _material.RENDER_ORDER.OPAQUE;
-      }
-    }
-  }
-
-  _createClass(RenderMaterial, [{
-    key: 'bind',
-    value: function bind(gl) {
-      // First time we do a binding, cache the uniform locations and remove
-      // unused uniforms from the list.
-      if (this._firstBind) {
-        for (var i = 0; i < this._samplers.length;) {
-          var sampler = this._samplers[i];
-          if (!this._program.uniform[sampler._uniformName]) {
-            this._samplers.splice(i, 1);
-            continue;
-          }
-          ++i;
-        }
-
-        for (var _i = 0; _i < this._uniforms.length;) {
-          var uniform = this._uniforms[_i];
-          uniform._uniform = this._program.uniform[uniform._uniformName];
-          if (!uniform._uniform) {
-            this._uniforms.splice(_i, 1);
-            continue;
-          }
-          ++_i;
-        }
-        this._firstBind = false;
-      }
-
-      var _iteratorNormalCompletion6 = true;
-      var _didIteratorError6 = false;
-      var _iteratorError6 = undefined;
-
-      try {
-        for (var _iterator6 = this._samplers[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-          var _sampler = _step6.value;
-
-          gl.activeTexture(gl.TEXTURE0 + _sampler._index);
-          if (_sampler._renderTexture && _sampler._renderTexture._complete) {
-            gl.bindTexture(gl.TEXTURE_2D, _sampler._renderTexture._texture);
-          } else {
-            gl.bindTexture(gl.TEXTURE_2D, null);
-          }
-        }
-      } catch (err) {
-        _didIteratorError6 = true;
-        _iteratorError6 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion6 && _iterator6.return) {
-            _iterator6.return();
-          }
-        } finally {
-          if (_didIteratorError6) {
-            throw _iteratorError6;
-          }
-        }
-      }
-
-      var _iteratorNormalCompletion7 = true;
-      var _didIteratorError7 = false;
-      var _iteratorError7 = undefined;
-
-      try {
-        for (var _iterator7 = this._uniforms[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-          var _uniform = _step7.value;
-
-          switch (_uniform._length) {
-            case 1:
-              gl.uniform1fv(_uniform._uniform, _uniform._value);break;
-            case 2:
-              gl.uniform2fv(_uniform._uniform, _uniform._value);break;
-            case 3:
-              gl.uniform3fv(_uniform._uniform, _uniform._value);break;
-            case 4:
-              gl.uniform4fv(_uniform._uniform, _uniform._value);break;
-          }
-        }
-      } catch (err) {
-        _didIteratorError7 = true;
-        _iteratorError7 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion7 && _iterator7.return) {
-            _iterator7.return();
-          }
-        } finally {
-          if (_didIteratorError7) {
-            throw _iteratorError7;
-          }
-        }
-      }
-    }
-  }, {
-    key: 'markActive',
-    value: function markActive(frameId) {
-      if (this._activeFrameId != frameId) {
-        this._activeFrameId = frameId;
-        this._completeForActiveFrame = true;
-        for (var i = 0; i < this._samplers.length; ++i) {
-          var sampler = this._samplers[i];
-          if (sampler._renderTexture) {
-            if (!sampler._renderTexture._complete) {
-              this._completeForActiveFrame = false;
-              break;
-            }
-            sampler._renderTexture.markActive(frameId);
-          }
-        }
-      }
-      return this._completeForActiveFrame;
-    }
-
-    // Material State fetchers
-
-  }, {
-    key: '_capsDiff',
-
-
-    // Only really for use from the renderer
-    value: function _capsDiff(otherState) {
-      return otherState & _material.MAT_STATE.CAPS_RANGE ^ this._state & _material.MAT_STATE.CAPS_RANGE;
-    }
-  }, {
-    key: '_blendDiff',
-    value: function _blendDiff(otherState) {
-      if (!(this._state & _material.CAP.BLEND)) {
-        return 0;
-      }
-      return otherState & _material.MAT_STATE.BLEND_FUNC_RANGE ^ this._state & _material.MAT_STATE.BLEND_FUNC_RANGE;
-    }
-  }, {
-    key: '_depthFuncDiff',
-    value: function _depthFuncDiff(otherState) {
-      if (!(this._state & _material.CAP.DEPTH_TEST)) {
-        return 0;
-      }
-      return otherState & _material.MAT_STATE.DEPTH_FUNC_RANGE ^ this._state & _material.MAT_STATE.DEPTH_FUNC_RANGE;
-    }
-  }, {
-    key: 'cullFace',
-    get: function get() {
-      return !!(this._state & _material.CAP.CULL_FACE);
-    }
-  }, {
-    key: 'blend',
-    get: function get() {
-      return !!(this._state & _material.CAP.BLEND);
-    }
-  }, {
-    key: 'depthTest',
-    get: function get() {
-      return !!(this._state & _material.CAP.DEPTH_TEST);
-    }
-  }, {
-    key: 'stencilTest',
-    get: function get() {
-      return !!(this._state & _material.CAP.STENCIL_TEST);
-    }
-  }, {
-    key: 'colorMask',
-    get: function get() {
-      return !!(this._state & _material.CAP.COLOR_MASK);
-    }
-  }, {
-    key: 'depthMask',
-    get: function get() {
-      return !!(this._state & _material.CAP.DEPTH_MASK);
-    }
-  }, {
-    key: 'stencilMask',
-    get: function get() {
-      return !!(this._state & _material.CAP.STENCIL_MASK);
-    }
-  }, {
-    key: 'depthFunc',
-    get: function get() {
-      return ((this._state & _material.MAT_STATE.DEPTH_FUNC_RANGE) >> _material.MAT_STATE.DEPTH_FUNC_SHIFT) + GL.NEVER;
-    }
-  }, {
-    key: 'blendFuncSrc',
-    get: function get() {
-      return (0, _material.stateToBlendFunc)(this._state, _material.MAT_STATE.BLEND_SRC_RANGE, _material.MAT_STATE.BLEND_SRC_SHIFT);
-    }
-  }, {
-    key: 'blendFuncDst',
-    get: function get() {
-      return (0, _material.stateToBlendFunc)(this._state, _material.MAT_STATE.BLEND_DST_RANGE, _material.MAT_STATE.BLEND_DST_SHIFT);
-    }
-  }]);
-
-  return RenderMaterial;
-}();
-
-var Renderer = exports.Renderer = function () {
-  function Renderer(gl) {
-    _classCallCheck(this, Renderer);
-
-    this._gl = gl || createWebGLContext();
-    this._frameId = 0;
-    this._programCache = {};
-    this._textureCache = {};
-    this._renderPrimitives = Array(_material.RENDER_ORDER.DEFAULT);
-    this._cameraPositions = [];
-
-    this._vaoExt = gl.getExtension('OES_vertex_array_object');
-
-    var fragHighPrecision = gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT);
-    this._defaultFragPrecision = fragHighPrecision.precision > 0 ? 'highp' : 'mediump';
-
-    this._depthMaskNeedsReset = false;
-    this._colorMaskNeedsReset = false;
-
-    this._globalLightColor = _glMatrix.vec3.clone(DEF_LIGHT_COLOR);
-    this._globalLightDir = _glMatrix.vec3.clone(DEF_LIGHT_DIR);
-  }
-
-  _createClass(Renderer, [{
-    key: 'createRenderBuffer',
-    value: function createRenderBuffer(target, data) {
-      var usage = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : GL.STATIC_DRAW;
-
-      var gl = this._gl;
-      var glBuffer = gl.createBuffer();
-
-      if (data instanceof Promise) {
-        var renderBuffer = new RenderBuffer(target, usage, data.then(function (data) {
-          gl.bindBuffer(target, glBuffer);
-          gl.bufferData(target, data, usage);
-          renderBuffer._length = data.byteLength;
-          return glBuffer;
-        }));
-        return renderBuffer;
-      } else {
-        gl.bindBuffer(target, glBuffer);
-        gl.bufferData(target, data, usage);
-        return new RenderBuffer(target, usage, glBuffer, data.byteLength);
-      }
-    }
-  }, {
-    key: 'updateRenderBuffer',
-    value: function updateRenderBuffer(buffer, data) {
-      var _this3 = this;
-
-      var offset = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 0;
-
-      if (buffer._buffer) {
-        var gl = this._gl;
-        gl.bindBuffer(buffer._target, buffer._buffer);
-        if (offset == 0 && buffer._length == data.byteLength) {
-          gl.bufferData(buffer._target, data, buffer._usage);
-        } else {
-          gl.bufferSubData(buffer._target, offset, data);
-        }
-      } else {
-        buffer.waitForComplete().then(function (buffer) {
-          _this3.updateRenderBuffer(buffer, data, offset);
-        });
-      }
-    }
-  }, {
-    key: 'createRenderPrimitive',
-    value: function createRenderPrimitive(primitive, material) {
-      var renderPrimitive = new RenderPrimitive(primitive);
-
-      var program = this._getMaterialProgram(material, renderPrimitive);
-      var renderMaterial = new RenderMaterial(this, material, program);
-      renderPrimitive.setRenderMaterial(renderMaterial);
-
-      if (!this._renderPrimitives[renderMaterial._renderOrder]) {
-        this._renderPrimitives[renderMaterial._renderOrder] = [];
-      }
-
-      this._renderPrimitives[renderMaterial._renderOrder].push(renderPrimitive);
-
-      return renderPrimitive;
-    }
-  }, {
-    key: 'createMesh',
-    value: function createMesh(primitive, material) {
-      var meshNode = new _node.Node();
-      meshNode.addRenderPrimitive(this.createRenderPrimitive(primitive, material));
-      return meshNode;
-    }
-  }, {
-    key: 'drawViews',
-    value: function drawViews(views, rootNode) {
-      if (!rootNode) {
-        return;
-      }
-
-      var gl = this._gl;
-      this._frameId++;
-
-      rootNode.markActive(this._frameId);
-
-      // If there's only one view then flip the algorithm a bit so that we're only
-      // setting the viewport once.
-      if (views.length == 1 && views[0].viewport) {
-        var vp = views[0].viewport;
-        this._gl.viewport(vp.x, vp.y, vp.width, vp.height);
-      }
-
-      // Get the positions of the 'camera' for each view matrix.
-      for (var i = 0; i < views.length; ++i) {
-        _glMatrix.mat4.invert(inverseMatrix, views[i].viewMatrix);
-
-        if (this._cameraPositions.length <= i) {
-          this._cameraPositions.push(_glMatrix.vec3.create());
-        }
-        var cameraPosition = this._cameraPositions[i];
-        _glMatrix.vec3.set(cameraPosition, 0, 0, 0);
-        _glMatrix.vec3.transformMat4(cameraPosition, cameraPosition, inverseMatrix);
-      }
-
-      // Draw each set of render primitives in order
-      var _iteratorNormalCompletion8 = true;
-      var _didIteratorError8 = false;
-      var _iteratorError8 = undefined;
-
-      try {
-        for (var _iterator8 = this._renderPrimitives[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-          var renderPrimitives = _step8.value;
-
-          if (renderPrimitives && renderPrimitives.length) {
-            this._drawRenderPrimitiveSet(views, renderPrimitives);
-          }
-        }
-      } catch (err) {
-        _didIteratorError8 = true;
-        _iteratorError8 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion8 && _iterator8.return) {
-            _iterator8.return();
-          }
-        } finally {
-          if (_didIteratorError8) {
-            throw _iteratorError8;
-          }
-        }
-      }
-
-      if (this._vaoExt) {
-        this._vaoExt.bindVertexArrayOES(null);
-      }
-
-      if (this._depthMaskNeedsReset) {
-        gl.depthMask(true);
-      }
-      if (this._colorMaskNeedsReset) {
-        gl.colorMask(true, true, true, true);
-      }
-    }
-  }, {
-    key: '_drawRenderPrimitiveSet',
-    value: function _drawRenderPrimitiveSet(views, renderPrimitives) {
-      var gl = this._gl;
-      var program = null;
-      var material = null;
-      var attribMask = 0;
-
-      // Loop through every primitive known to the renderer.
-      var _iteratorNormalCompletion9 = true;
-      var _didIteratorError9 = false;
-      var _iteratorError9 = undefined;
-
-      try {
-        for (var _iterator9 = renderPrimitives[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-          var primitive = _step9.value;
-
-          // Skip over those that haven't been marked as active for this frame.
-          if (primitive._activeFrameId != this._frameId) {
-            continue;
-          }
-
-          // Bind the primitive material's program if it's different than the one we
-          // were using for the previous primitive.
-          // TODO: The ording of this could be more efficient.
-          if (program != primitive._material._program) {
-            program = primitive._material._program;
-            program.use();
-
-            if (program.uniform.LIGHT_DIRECTION) {
-              gl.uniform3fv(program.uniform.LIGHT_DIRECTION, this._globalLightDir);
-            }
-
-            if (program.uniform.LIGHT_COLOR) {
-              gl.uniform3fv(program.uniform.LIGHT_COLOR, this._globalLightColor);
-            }
-
-            if (views.length == 1) {
-              gl.uniformMatrix4fv(program.uniform.PROJECTION_MATRIX, false, views[0].projectionMatrix);
-              gl.uniformMatrix4fv(program.uniform.VIEW_MATRIX, false, views[0].viewMatrix);
-              gl.uniform3fv(program.uniform.CAMERA_POSITION, this._cameraPositions[0]);
-              gl.uniform1i(program.uniform.EYE_INDEX, views[0].eyeIndex);
-            }
-          }
-
-          if (material != primitive._material) {
-            this._bindMaterialState(primitive._material, material);
-            primitive._material.bind(gl, program, material);
-            material = primitive._material;
-          }
-
-          if (this._vaoExt) {
-            if (primitive._vao) {
-              this._vaoExt.bindVertexArrayOES(primitive._vao);
-            } else {
-              primitive._vao = this._vaoExt.createVertexArrayOES();
-              this._vaoExt.bindVertexArrayOES(primitive._vao);
-              this._bindPrimitive(primitive);
-            }
-          } else {
-            this._bindPrimitive(primitive, attribMask);
-            attribMask = primitive._attributeMask;
-          }
-
-          for (var i = 0; i < views.length; ++i) {
-            var view = views[i];
-            if (views.length > 1) {
-              if (view.viewport) {
-                var vp = view.viewport;
-                gl.viewport(vp.x, vp.y, vp.width, vp.height);
-              }
-              gl.uniformMatrix4fv(program.uniform.PROJECTION_MATRIX, false, view.projectionMatrix);
-              gl.uniformMatrix4fv(program.uniform.VIEW_MATRIX, false, view.viewMatrix);
-              gl.uniform3fv(program.uniform.CAMERA_POSITION, this._cameraPositions[i]);
-              gl.uniform1i(program.uniform.EYE_INDEX, view.eyeIndex);
-            }
-
-            var _iteratorNormalCompletion10 = true;
-            var _didIteratorError10 = false;
-            var _iteratorError10 = undefined;
-
-            try {
-              for (var _iterator10 = primitive._instances[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
-                var instance = _step10.value;
-
-                if (instance._activeFrameId != this._frameId) {
-                  continue;
-                }
-
-                gl.uniformMatrix4fv(program.uniform.MODEL_MATRIX, false, instance.worldMatrix);
-
-                if (primitive._indexBuffer) {
-                  gl.drawElements(primitive._mode, primitive._elementCount, primitive._indexType, primitive._indexByteOffset);
-                } else {
-                  gl.drawArrays(primitive._mode, 0, primitive._elementCount);
-                }
-              }
-            } catch (err) {
-              _didIteratorError10 = true;
-              _iteratorError10 = err;
-            } finally {
-              try {
-                if (!_iteratorNormalCompletion10 && _iterator10.return) {
-                  _iterator10.return();
-                }
-              } finally {
-                if (_didIteratorError10) {
-                  throw _iteratorError10;
-                }
-              }
-            }
-          }
-        }
-      } catch (err) {
-        _didIteratorError9 = true;
-        _iteratorError9 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion9 && _iterator9.return) {
-            _iterator9.return();
-          }
-        } finally {
-          if (_didIteratorError9) {
-            throw _iteratorError9;
-          }
-        }
-      }
-    }
-  }, {
-    key: '_getRenderTexture',
-    value: function _getRenderTexture(texture) {
-      var _this4 = this;
-
-      if (!texture) {
-        return null;
-      }
-
-      var key = texture.textureKey;
-      if (!key) {
-        throw new Error('Texure does not have a valid key');
-      }
-
-      if (key in this._textureCache) {
-        return this._textureCache[key];
-      } else {
-        var gl = this._gl;
-        var textureHandle = gl.createTexture();
-
-        var renderTexture = new RenderTexture(textureHandle);
-        this._textureCache[key] = renderTexture;
-
-        if (texture instanceof _texture.DataTexture) {
-          gl.bindTexture(gl.TEXTURE_2D, textureHandle);
-          gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.width, texture.height, 0, texture.format, texture._type, texture._data);
-          this._setSamplerParameters(texture);
-          renderTexture._complete = true;
-        } else {
-          texture.waitForComplete().then(function () {
-            gl.bindTexture(gl.TEXTURE_2D, textureHandle);
-            gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.format, gl.UNSIGNED_BYTE, texture.source);
-            _this4._setSamplerParameters(texture);
-            renderTexture._complete = true;
-
-            if (texture instanceof _texture.VideoTexture) {
-              // Once the video starts playing, set a callback to update it's
-              // contents each frame.
-              texture._video.addEventListener('playing', function () {
-                renderTexture._activeCallback = function () {
-                  if (!texture._video.paused && !texture._video.waiting) {
-                    gl.bindTexture(gl.TEXTURE_2D, textureHandle);
-                    gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.format, gl.UNSIGNED_BYTE, texture.source);
-                  }
-                };
-              });
-            }
-          });
-        }
-
-        return renderTexture;
-      }
-    }
-  }, {
-    key: '_setSamplerParameters',
-    value: function _setSamplerParameters(texture) {
-      var gl = this._gl;
-
-      var sampler = texture.sampler;
-      var powerOfTwo = isPowerOfTwo(texture.width) && isPowerOfTwo(texture.height);
-      var mipmap = powerOfTwo && texture.mipmap;
-      if (mipmap) {
-        gl.generateMipmap(gl.TEXTURE_2D);
-      }
-
-      var minFilter = sampler.minFilter || (mipmap ? gl.LINEAR_MIPMAP_LINEAR : gl.LINEAR);
-      var wrapS = sampler.wrapS || (powerOfTwo ? gl.REPEAT : gl.CLAMP_TO_EDGE);
-      var wrapT = sampler.wrapT || (powerOfTwo ? gl.REPEAT : gl.CLAMP_TO_EDGE);
-
-      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, sampler.magFilter || gl.LINEAR);
-      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter);
-      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, wrapS);
-      gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, wrapT);
-    }
-  }, {
-    key: '_getProgramKey',
-    value: function _getProgramKey(name, defines) {
-      var key = name + ':';
-
-      for (var define in defines) {
-        key += define + '=' + defines[define] + ',';
-      }
-
-      return key;
-    }
-  }, {
-    key: '_getMaterialProgram',
-    value: function _getMaterialProgram(material, renderPrimitive) {
-      var _this5 = this;
-
-      var materialName = material.materialName;
-      var vertexSource = material.vertexSource;
-      var fragmentSource = material.fragmentSource;
-
-      // These should always be defined for every material
-      if (materialName == null) {
-        throw new Error('Material does not have a name');
-      }
-      if (vertexSource == null) {
-        throw new Error('Material "' + materialName + '" does not have a vertex source');
-      }
-      if (fragmentSource == null) {
-        throw new Error('Material "' + materialName + '" does not have a fragment source');
-      }
-
-      var defines = material.getProgramDefines(renderPrimitive);
-      var key = this._getProgramKey(materialName, defines);
-
-      if (key in this._programCache) {
-        return this._programCache[key];
-      } else {
-        var multiview = false; // Handle this dynamically later
-        var fullVertexSource = vertexSource;
-        fullVertexSource += multiview ? VERTEX_SHADER_MULTI_ENTRY : VERTEX_SHADER_SINGLE_ENTRY;
-
-        var precisionMatch = fragmentSource.match(PRECISION_REGEX);
-        var fragPrecisionHeader = precisionMatch ? '' : 'precision ' + this._defaultFragPrecision + ' float;\n';
-
-        var fullFragmentSource = fragPrecisionHeader + fragmentSource;
-        fullFragmentSource += FRAGMENT_SHADER_ENTRY;
-
-        var program = new _program.Program(this._gl, fullVertexSource, fullFragmentSource, ATTRIB, defines);
-        this._programCache[key] = program;
-
-        program.onNextUse(function (program) {
-          // Bind the samplers to the right texture index. This is constant for
-          // the lifetime of the program.
-          for (var i = 0; i < material._samplers.length; ++i) {
-            var sampler = material._samplers[i];
-            var uniform = program.uniform[sampler._uniformName];
-            if (uniform) {
-              _this5._gl.uniform1i(uniform, i);
-            }
-          }
-        });
-
-        return program;
-      }
-    }
-  }, {
-    key: '_bindPrimitive',
-    value: function _bindPrimitive(primitive, attribMask) {
-      var gl = this._gl;
-
-      // If the active attributes have changed then update the active set.
-      if (attribMask != primitive._attributeMask) {
-        for (var attrib in ATTRIB) {
-          if (primitive._attributeMask & ATTRIB_MASK[attrib]) {
-            gl.enableVertexAttribArray(ATTRIB[attrib]);
-          } else {
-            gl.disableVertexAttribArray(ATTRIB[attrib]);
-          }
-        }
-      }
-
-      // Bind the primitive attributes and indices.
-      var _iteratorNormalCompletion11 = true;
-      var _didIteratorError11 = false;
-      var _iteratorError11 = undefined;
-
-      try {
-        for (var _iterator11 = primitive._attributeBuffers[Symbol.iterator](), _step11; !(_iteratorNormalCompletion11 = (_step11 = _iterator11.next()).done); _iteratorNormalCompletion11 = true) {
-          var attributeBuffer = _step11.value;
-
-          gl.bindBuffer(gl.ARRAY_BUFFER, attributeBuffer._buffer._buffer);
-          var _iteratorNormalCompletion12 = true;
-          var _didIteratorError12 = false;
-          var _iteratorError12 = undefined;
-
-          try {
-            for (var _iterator12 = attributeBuffer._attributes[Symbol.iterator](), _step12; !(_iteratorNormalCompletion12 = (_step12 = _iterator12.next()).done); _iteratorNormalCompletion12 = true) {
-              var _attrib = _step12.value;
-
-              gl.vertexAttribPointer(_attrib._attrib_index, _attrib._componentCount, _attrib._componentType, _attrib._normalized, _attrib._stride, _attrib._byteOffset);
-            }
-          } catch (err) {
-            _didIteratorError12 = true;
-            _iteratorError12 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion12 && _iterator12.return) {
-                _iterator12.return();
-              }
-            } finally {
-              if (_didIteratorError12) {
-                throw _iteratorError12;
-              }
-            }
-          }
-        }
-      } catch (err) {
-        _didIteratorError11 = true;
-        _iteratorError11 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion11 && _iterator11.return) {
-            _iterator11.return();
-          }
-        } finally {
-          if (_didIteratorError11) {
-            throw _iteratorError11;
-          }
-        }
-      }
-
-      if (primitive._indexBuffer) {
-        gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, primitive._indexBuffer._buffer);
-      } else {
-        gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);
-      }
-    }
-  }, {
-    key: '_bindMaterialState',
-    value: function _bindMaterialState(material) {
-      var prevMaterial = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
-
-      var gl = this._gl;
-
-      var state = material._state;
-      var prevState = prevMaterial ? prevMaterial._state : ~state;
-
-      // Return early if both materials use identical state
-      if (state == prevState) {
-        return;
-      }
-
-      // Any caps bits changed?
-      if (material._capsDiff(prevState)) {
-        setCap(gl, gl.CULL_FACE, _material.CAP.CULL_FACE, prevState, state);
-        setCap(gl, gl.BLEND, _material.CAP.BLEND, prevState, state);
-        setCap(gl, gl.DEPTH_TEST, _material.CAP.DEPTH_TEST, prevState, state);
-        setCap(gl, gl.STENCIL_TEST, _material.CAP.STENCIL_TEST, prevState, state);
-
-        var colorMaskChange = (state & _material.CAP.COLOR_MASK) - (prevState & _material.CAP.COLOR_MASK);
-        if (colorMaskChange) {
-          var mask = colorMaskChange > 1;
-          this._colorMaskNeedsReset = !mask;
-          gl.colorMask(mask, mask, mask, mask);
-        }
-
-        var depthMaskChange = (state & _material.CAP.DEPTH_MASK) - (prevState & _material.CAP.DEPTH_MASK);
-        if (depthMaskChange) {
-          this._depthMaskNeedsReset = !(depthMaskChange > 1);
-          gl.depthMask(depthMaskChange > 1);
-        }
-
-        var stencilMaskChange = (state & _material.CAP.STENCIL_MASK) - (prevState & _material.CAP.STENCIL_MASK);
-        if (stencilMaskChange) {
-          gl.stencilMask(stencilMaskChange > 1);
-        }
-      }
-
-      // Blending enabled and blend func changed?
-      if (material._blendDiff(prevState)) {
-        gl.blendFunc(material.blendFuncSrc, material.blendFuncDst);
-      }
-
-      // Depth testing enabled and depth func changed?
-      if (material._depthFuncDiff(prevState)) {
-        gl.depthFunc(material.depthFunc);
-      }
-    }
-  }, {
-    key: 'gl',
-    get: function get() {
-      return this._gl;
-    }
-  }, {
-    key: 'globalLightColor',
-    set: function set(value) {
-      _glMatrix.vec3.copy(this._globalLightColor, value);
-    },
-    get: function get() {
-      return _glMatrix.vec3.clone(this._globalLightColor);
-    }
-  }, {
-    key: 'globalLightDir',
-    set: function set(value) {
-      _glMatrix.vec3.copy(this._globalLightDir, value);
-    },
-    get: function get() {
-      return _glMatrix.vec3.clone(this._globalLightDir);
-    }
-  }]);
-
-  return Renderer;
-}();
-
-/***/ }),
-
-/***/ "./src/core/texture.js":
-/*!*****************************!*\
-  !*** ./src/core/texture.js ***!
-  \*****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var GL = WebGLRenderingContext; // For enums
-
-var TextureSampler = exports.TextureSampler = function TextureSampler() {
-  _classCallCheck(this, TextureSampler);
-
-  this.minFilter = null;
-  this.magFilter = null;
-  this.wrapS = null;
-  this.wrapT = null;
-};
-
-var Texture = exports.Texture = function () {
-  function Texture() {
-    _classCallCheck(this, Texture);
-
-    this.sampler = new TextureSampler();
-    this.mipmap = true;
-    // TODO: Anisotropy
-  }
-
-  _createClass(Texture, [{
-    key: 'format',
-    get: function get() {
-      return GL.RGBA;
-    }
-  }, {
-    key: 'width',
-    get: function get() {
-      return 0;
-    }
-  }, {
-    key: 'height',
-    get: function get() {
-      return 0;
-    }
-  }, {
-    key: 'textureKey',
-    get: function get() {
-      return null;
-    }
-  }]);
-
-  return Texture;
-}();
-
-var ImageTexture = exports.ImageTexture = function (_Texture) {
-  _inherits(ImageTexture, _Texture);
-
-  function ImageTexture(img) {
-    _classCallCheck(this, ImageTexture);
-
-    var _this = _possibleConstructorReturn(this, (ImageTexture.__proto__ || Object.getPrototypeOf(ImageTexture)).call(this));
-
-    _this._img = img;
-    _this._imgBitmap = null;
-
-    if (img.src && img.complete) {
-      if (img.naturalWidth) {
-        _this._promise = _this._finishImage();
-      } else {
-        _this._promise = Promise.reject('Image provided had failed to load.');
-      }
-    } else {
-      _this._promise = new Promise(function (resolve, reject) {
-        img.addEventListener('load', function () {
-          return resolve(_this._finishImage());
-        });
-        img.addEventListener('error', reject);
-      });
-    }
-    return _this;
-  }
-
-  _createClass(ImageTexture, [{
-    key: '_finishImage',
-    value: function _finishImage() {
-      var _this2 = this;
-
-      if (window.createImageBitmap) {
-        return window.createImageBitmap(this._img).then(function (imgBitmap) {
-          _this2._imgBitmap = imgBitmap;
-          return Promise.resolve(_this2);
-        });
-      }
-      return Promise.resolve(this);
-    }
-  }, {
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      return this._promise;
-    }
-  }, {
-    key: 'format',
-    get: function get() {
-      // TODO: Can be RGB in some cases.
-      return GL.RGBA;
-    }
-  }, {
-    key: 'width',
-    get: function get() {
-      return this._img.width;
-    }
-  }, {
-    key: 'height',
-    get: function get() {
-      return this._img.height;
-    }
-  }, {
-    key: 'textureKey',
-    get: function get() {
-      return this._img.src;
-    }
-  }, {
-    key: 'source',
-    get: function get() {
-      return this._imgBitmap || this._img;
-    }
-  }]);
-
-  return ImageTexture;
-}(Texture);
-
-var UrlTexture = exports.UrlTexture = function (_ImageTexture) {
-  _inherits(UrlTexture, _ImageTexture);
-
-  function UrlTexture(url) {
-    _classCallCheck(this, UrlTexture);
-
-    var img = new Image();
-
-    var _this3 = _possibleConstructorReturn(this, (UrlTexture.__proto__ || Object.getPrototypeOf(UrlTexture)).call(this, img));
-
-    img.src = url;
-    return _this3;
-  }
-
-  return UrlTexture;
-}(ImageTexture);
-
-var BlobTexture = exports.BlobTexture = function (_ImageTexture2) {
-  _inherits(BlobTexture, _ImageTexture2);
-
-  function BlobTexture(blob) {
-    _classCallCheck(this, BlobTexture);
-
-    var img = new Image();
-
-    var _this4 = _possibleConstructorReturn(this, (BlobTexture.__proto__ || Object.getPrototypeOf(BlobTexture)).call(this, img));
-
-    img.src = window.URL.createObjectURL(blob);
-    return _this4;
-  }
-
-  return BlobTexture;
-}(ImageTexture);
-
-var VideoTexture = exports.VideoTexture = function (_Texture2) {
-  _inherits(VideoTexture, _Texture2);
-
-  function VideoTexture(video) {
-    _classCallCheck(this, VideoTexture);
-
-    var _this5 = _possibleConstructorReturn(this, (VideoTexture.__proto__ || Object.getPrototypeOf(VideoTexture)).call(this));
-
-    _this5._video = video;
-
-    if (video.readyState >= 2) {
-      _this5._promise = Promise.resolve(_this5);
-    } else if (video.error) {
-      _this5._promise = Promise.reject(video.error);
-    } else {
-      _this5._promise = new Promise(function (resolve, reject) {
-        video.addEventListener('loadeddata', function () {
-          return resolve(_this5);
-        });
-        video.addEventListener('error', reject);
-      });
-    }
-    return _this5;
-  }
-
-  _createClass(VideoTexture, [{
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      return this._promise;
-    }
-  }, {
-    key: 'format',
-    get: function get() {
-      // TODO: Can be RGB in some cases.
-      return GL.RGBA;
-    }
-  }, {
-    key: 'width',
-    get: function get() {
-      return this._video.videoWidth;
-    }
-  }, {
-    key: 'height',
-    get: function get() {
-      return this._video.videoHeight;
-    }
-  }, {
-    key: 'textureKey',
-    get: function get() {
-      return this._video.src;
-    }
-  }, {
-    key: 'source',
-    get: function get() {
-      return this._video;
-    }
-  }]);
-
-  return VideoTexture;
-}(Texture);
-
-var nextDataTextureIndex = 0;
-
-var DataTexture = exports.DataTexture = function (_Texture3) {
-  _inherits(DataTexture, _Texture3);
-
-  function DataTexture(data, width, height) {
-    var format = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : GL.RGBA;
-    var type = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : GL.UNSIGNED_BYTE;
-
-    _classCallCheck(this, DataTexture);
-
-    var _this6 = _possibleConstructorReturn(this, (DataTexture.__proto__ || Object.getPrototypeOf(DataTexture)).call(this));
-
-    _this6._data = data;
-    _this6._width = width;
-    _this6._height = height;
-    _this6._format = format;
-    _this6._type = type;
-    _this6._key = 'DATA_' + nextDataTextureIndex;
-    nextDataTextureIndex++;
-    return _this6;
-  }
-
-  _createClass(DataTexture, [{
-    key: 'format',
-    get: function get() {
-      return this._format;
-    }
-  }, {
-    key: 'width',
-    get: function get() {
-      return this._width;
-    }
-  }, {
-    key: 'height',
-    get: function get() {
-      return this._height;
-    }
-  }, {
-    key: 'textureKey',
-    get: function get() {
-      return this._key;
-    }
-  }]);
-
-  return DataTexture;
-}(Texture);
-
-var ColorTexture = exports.ColorTexture = function (_DataTexture) {
-  _inherits(ColorTexture, _DataTexture);
-
-  function ColorTexture(r, g, b, a) {
-    _classCallCheck(this, ColorTexture);
-
-    var colorData = new Uint8Array([r * 255.0, g * 255.0, b * 255.0, a * 255.0]);
-
-    var _this7 = _possibleConstructorReturn(this, (ColorTexture.__proto__ || Object.getPrototypeOf(ColorTexture)).call(this, colorData, 1, 1));
-
-    _this7.mipmap = false;
-    _this7._key = 'COLOR_' + colorData[0] + '_' + colorData[1] + '_' + colorData[2] + '_' + colorData[3];
-    return _this7;
-  }
-
-  return ColorTexture;
-}(DataTexture);
-
-/***/ }),
-
-/***/ "./src/cottontail.js":
-/*!***************************!*\
-  !*** ./src/cottontail.js ***!
-  \***************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _node = __webpack_require__(/*! ./core/node.js */ "./src/core/node.js");
-
-Object.defineProperty(exports, 'Node', {
-  enumerable: true,
-  get: function get() {
-    return _node.Node;
-  }
-});
-
-var _renderer = __webpack_require__(/*! ./core/renderer.js */ "./src/core/renderer.js");
-
-Object.defineProperty(exports, 'Renderer', {
-  enumerable: true,
-  get: function get() {
-    return _renderer.Renderer;
-  }
-});
-Object.defineProperty(exports, 'createWebGLContext', {
-  enumerable: true,
-  get: function get() {
-    return _renderer.createWebGLContext;
-  }
-});
-
-var _texture = __webpack_require__(/*! ./core/texture.js */ "./src/core/texture.js");
-
-Object.defineProperty(exports, 'UrlTexture', {
-  enumerable: true,
-  get: function get() {
-    return _texture.UrlTexture;
-  }
-});
-
-var _primitiveStream = __webpack_require__(/*! ./geometry/primitive-stream.js */ "./src/geometry/primitive-stream.js");
-
-Object.defineProperty(exports, 'PrimitiveStream', {
-  enumerable: true,
-  get: function get() {
-    return _primitiveStream.PrimitiveStream;
-  }
-});
-
-var _boxBuilder = __webpack_require__(/*! ./geometry/box-builder.js */ "./src/geometry/box-builder.js");
-
-Object.defineProperty(exports, 'BoxBuilder', {
-  enumerable: true,
-  get: function get() {
-    return _boxBuilder.BoxBuilder;
-  }
-});
-
-var _pbr = __webpack_require__(/*! ./materials/pbr.js */ "./src/materials/pbr.js");
-
-Object.defineProperty(exports, 'PbrMaterial', {
-  enumerable: true,
-  get: function get() {
-    return _pbr.PbrMaterial;
-  }
-});
-
-var _glMatrix = __webpack_require__(/*! ./math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-Object.defineProperty(exports, 'mat4', {
-  enumerable: true,
-  get: function get() {
-    return _glMatrix.mat4;
-  }
-});
-Object.defineProperty(exports, 'mat3', {
-  enumerable: true,
-  get: function get() {
-    return _glMatrix.mat3;
-  }
-});
-Object.defineProperty(exports, 'vec3', {
-  enumerable: true,
-  get: function get() {
-    return _glMatrix.vec3;
-  }
-});
-Object.defineProperty(exports, 'vec4', {
-  enumerable: true,
-  get: function get() {
-    return _glMatrix.vec4;
-  }
-});
-Object.defineProperty(exports, 'quat', {
-  enumerable: true,
-  get: function get() {
-    return _glMatrix.quat;
-  }
-});
-
-var _boundsRenderer = __webpack_require__(/*! ./nodes/bounds-renderer.js */ "./src/nodes/bounds-renderer.js");
-
-Object.defineProperty(exports, 'BoundsRenderer', {
-  enumerable: true,
-  get: function get() {
-    return _boundsRenderer.BoundsRenderer;
-  }
-});
-
-var _button = __webpack_require__(/*! ./nodes/button.js */ "./src/nodes/button.js");
-
-Object.defineProperty(exports, 'ButtonNode', {
-  enumerable: true,
-  get: function get() {
-    return _button.ButtonNode;
-  }
-});
-
-var _dropShadow = __webpack_require__(/*! ./nodes/drop-shadow.js */ "./src/nodes/drop-shadow.js");
-
-Object.defineProperty(exports, 'DropShadowNode', {
-  enumerable: true,
-  get: function get() {
-    return _dropShadow.DropShadowNode;
-  }
-});
-
-var _cubeSea = __webpack_require__(/*! ./nodes/cube-sea.js */ "./src/nodes/cube-sea.js");
-
-Object.defineProperty(exports, 'CubeSeaNode', {
-  enumerable: true,
-  get: function get() {
-    return _cubeSea.CubeSeaNode;
-  }
-});
-
-var _gltf = __webpack_require__(/*! ./nodes/gltf2.js */ "./src/nodes/gltf2.js");
-
-Object.defineProperty(exports, 'Gltf2Node', {
-  enumerable: true,
-  get: function get() {
-    return _gltf.Gltf2Node;
-  }
-});
-
-var _skybox = __webpack_require__(/*! ./nodes/skybox.js */ "./src/nodes/skybox.js");
-
-Object.defineProperty(exports, 'SkyboxNode', {
-  enumerable: true,
-  get: function get() {
-    return _skybox.SkyboxNode;
-  }
-});
-
-var _video = __webpack_require__(/*! ./nodes/video.js */ "./src/nodes/video.js");
-
-Object.defineProperty(exports, 'VideoNode', {
-  enumerable: true,
-  get: function get() {
-    return _video.VideoNode;
-  }
-});
-
-var _scene = __webpack_require__(/*! ./scenes/scene.js */ "./src/scenes/scene.js");
-
-Object.defineProperty(exports, 'WebXRView', {
-  enumerable: true,
-  get: function get() {
-    return _scene.WebXRView;
-  }
-});
-Object.defineProperty(exports, 'Scene', {
-  enumerable: true,
-  get: function get() {
-    return _scene.Scene;
-  }
-});
-
-var _fallbackHelper = __webpack_require__(/*! ./util/fallback-helper.js */ "./src/util/fallback-helper.js");
-
-Object.defineProperty(exports, 'FallbackHelper', {
-  enumerable: true,
-  get: function get() {
-    return _fallbackHelper.FallbackHelper;
-  }
-});
-
-var _queryArgs = __webpack_require__(/*! ./util/query-args.js */ "./src/util/query-args.js");
-
-Object.defineProperty(exports, 'QueryArgs', {
-  enumerable: true,
-  get: function get() {
-    return _queryArgs.QueryArgs;
-  }
-});
-
-/***/ }),
-
-/***/ "./src/geometry/box-builder.js":
-/*!*************************************!*\
-  !*** ./src/geometry/box-builder.js ***!
-  \*************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.BoxBuilder = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _primitiveStream = __webpack_require__(/*! ./primitive-stream.js */ "./src/geometry/primitive-stream.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var BoxBuilder = exports.BoxBuilder = function (_GeometryBuilderBase) {
-  _inherits(BoxBuilder, _GeometryBuilderBase);
-
-  function BoxBuilder() {
-    _classCallCheck(this, BoxBuilder);
-
-    return _possibleConstructorReturn(this, (BoxBuilder.__proto__ || Object.getPrototypeOf(BoxBuilder)).apply(this, arguments));
-  }
-
-  _createClass(BoxBuilder, [{
-    key: 'pushBox',
-    value: function pushBox(min, max) {
-      var stream = this.primitiveStream;
-
-      var w = max[0] - min[0];
-      var h = max[1] - min[1];
-      var d = max[2] - min[2];
-
-      var wh = w * 0.5;
-      var hh = h * 0.5;
-      var dh = d * 0.5;
-
-      var cx = min[0] + wh;
-      var cy = min[1] + hh;
-      var cz = min[2] + dh;
-
-      stream.startGeometry();
-
-      // Bottom
-      var idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 1, idx + 2);
-      stream.pushTriangle(idx, idx + 2, idx + 3);
-
-      //                 X       Y       Z      U    V    NX    NY   NZ
-      stream.pushVertex(-wh + cx, -hh + cy, -dh + cz, 0.0, 1.0, 0.0, -1.0, 0.0);
-      stream.pushVertex(+wh + cx, -hh + cy, -dh + cz, 1.0, 1.0, 0.0, -1.0, 0.0);
-      stream.pushVertex(+wh + cx, -hh + cy, +dh + cz, 1.0, 0.0, 0.0, -1.0, 0.0);
-      stream.pushVertex(-wh + cx, -hh + cy, +dh + cz, 0.0, 0.0, 0.0, -1.0, 0.0);
-
-      // Top
-      idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 2, idx + 1);
-      stream.pushTriangle(idx, idx + 3, idx + 2);
-
-      stream.pushVertex(-wh + cx, +hh + cy, -dh + cz, 0.0, 0.0, 0.0, 1.0, 0.0);
-      stream.pushVertex(+wh + cx, +hh + cy, -dh + cz, 1.0, 0.0, 0.0, 1.0, 0.0);
-      stream.pushVertex(+wh + cx, +hh + cy, +dh + cz, 1.0, 1.0, 0.0, 1.0, 0.0);
-      stream.pushVertex(-wh + cx, +hh + cy, +dh + cz, 0.0, 1.0, 0.0, 1.0, 0.0);
-
-      // Left
-      idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 2, idx + 1);
-      stream.pushTriangle(idx, idx + 3, idx + 2);
-
-      stream.pushVertex(-wh + cx, -hh + cy, -dh + cz, 0.0, 1.0, -1.0, 0.0, 0.0);
-      stream.pushVertex(-wh + cx, +hh + cy, -dh + cz, 0.0, 0.0, -1.0, 0.0, 0.0);
-      stream.pushVertex(-wh + cx, +hh + cy, +dh + cz, 1.0, 0.0, -1.0, 0.0, 0.0);
-      stream.pushVertex(-wh + cx, -hh + cy, +dh + cz, 1.0, 1.0, -1.0, 0.0, 0.0);
-
-      // Right
-      idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 1, idx + 2);
-      stream.pushTriangle(idx, idx + 2, idx + 3);
-
-      stream.pushVertex(+wh + cx, -hh + cy, -dh + cz, 1.0, 1.0, 1.0, 0.0, 0.0);
-      stream.pushVertex(+wh + cx, +hh + cy, -dh + cz, 1.0, 0.0, 1.0, 0.0, 0.0);
-      stream.pushVertex(+wh + cx, +hh + cy, +dh + cz, 0.0, 0.0, 1.0, 0.0, 0.0);
-      stream.pushVertex(+wh + cx, -hh + cy, +dh + cz, 0.0, 1.0, 1.0, 0.0, 0.0);
-
-      // Back
-      idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 2, idx + 1);
-      stream.pushTriangle(idx, idx + 3, idx + 2);
-
-      stream.pushVertex(-wh + cx, -hh + cy, -dh + cz, 1.0, 1.0, 0.0, 0.0, -1.0);
-      stream.pushVertex(+wh + cx, -hh + cy, -dh + cz, 0.0, 1.0, 0.0, 0.0, -1.0);
-      stream.pushVertex(+wh + cx, +hh + cy, -dh + cz, 0.0, 0.0, 0.0, 0.0, -1.0);
-      stream.pushVertex(-wh + cx, +hh + cy, -dh + cz, 1.0, 0.0, 0.0, 0.0, -1.0);
-
-      // Front
-      idx = stream.nextVertexIndex;
-      stream.pushTriangle(idx, idx + 1, idx + 2);
-      stream.pushTriangle(idx, idx + 2, idx + 3);
-
-      stream.pushVertex(-wh + cx, -hh + cy, +dh + cz, 0.0, 1.0, 0.0, 0.0, 1.0);
-      stream.pushVertex(+wh + cx, -hh + cy, +dh + cz, 1.0, 1.0, 0.0, 0.0, 1.0);
-      stream.pushVertex(+wh + cx, +hh + cy, +dh + cz, 1.0, 0.0, 0.0, 0.0, 1.0);
-      stream.pushVertex(-wh + cx, +hh + cy, +dh + cz, 0.0, 0.0, 0.0, 0.0, 1.0);
-
-      stream.endGeometry();
-    }
-  }, {
-    key: 'pushCube',
-    value: function pushCube() {
-      var center = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : [0, 0, 0];
-      var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1.0;
-
-      var hs = size * 0.5;
-      this.pushBox([center[0] - hs, center[1] - hs, center[2] - hs], [center[0] + hs, center[1] + hs, center[2] + hs]);
-    }
-  }]);
-
-  return BoxBuilder;
-}(_primitiveStream.GeometryBuilderBase);
-
-/***/ }),
-
-/***/ "./src/geometry/primitive-stream.js":
-/*!******************************************!*\
-  !*** ./src/geometry/primitive-stream.js ***!
-  \******************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.GeometryBuilderBase = exports.PrimitiveStream = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var GL = WebGLRenderingContext; // For enums
-
-var tempVec3 = _glMatrix.vec3.create();
-
-var PrimitiveStream = exports.PrimitiveStream = function () {
-  function PrimitiveStream(options) {
-    _classCallCheck(this, PrimitiveStream);
-
-    this._vertices = [];
-    this._indices = [];
-
-    this._geometryStarted = false;
-
-    this._vertexOffset = 0;
-    this._vertexIndex = 0;
-    this._highIndex = 0;
-
-    this._flipWinding = false;
-    this._invertNormals = false;
-    this._transform = null;
-    this._normalTransform = null;
-    this._min = null;
-    this._max = null;
-  }
-
-  _createClass(PrimitiveStream, [{
-    key: 'startGeometry',
-    value: function startGeometry() {
-      if (this._geometryStarted) {
-        throw new Error('Attempted to start a new geometry before the previous one was ended.');
-      }
-
-      this._geometryStarted = true;
-      this._vertexIndex = 0;
-      this._highIndex = 0;
-    }
-  }, {
-    key: 'endGeometry',
-    value: function endGeometry() {
-      if (!this._geometryStarted) {
-        throw new Error('Attempted to end a geometry before one was started.');
-      }
-
-      if (this._highIndex >= this._vertexIndex) {
-        throw new Error('Geometry contains indices that are out of bounds.\n                       (Contains an index of ' + this._highIndex + ' when the vertex count is ' + this._vertexIndex + ')');
-      }
-
-      this._geometryStarted = false;
-      this._vertexOffset += this._vertexIndex;
-
-      // TODO: Anything else need to be done to finish processing here?
-    }
-  }, {
-    key: 'pushVertex',
-    value: function pushVertex(x, y, z) {
-      var u = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : 0;
-      var v = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 0;
-      var nx = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;
-      var ny = arguments.length > 6 && arguments[6] !== undefined ? arguments[6] : 0;
-      var nz = arguments.length > 7 && arguments[7] !== undefined ? arguments[7] : 1;
-
-      if (!this._geometryStarted) {
-        throw new Error('Cannot push vertices before calling startGeometry().');
-      }
-
-      // Transform the incoming vertex if we have a transformation matrix
-      if (this._transform) {
-        tempVec3[0] = x;
-        tempVec3[1] = y;
-        tempVec3[2] = z;
-        _glMatrix.vec3.transformMat4(tempVec3, tempVec3, this._transform);
-        x = tempVec3[0];
-        y = tempVec3[1];
-        z = tempVec3[2];
-
-        tempVec3[0] = nx;
-        tempVec3[1] = ny;
-        tempVec3[2] = nz;
-        _glMatrix.vec3.transformMat3(tempVec3, tempVec3, this._normalTransform);
-        nx = tempVec3[0];
-        ny = tempVec3[1];
-        nz = tempVec3[2];
-      }
-
-      if (this._invertNormals) {
-        nx *= -1.0;
-        ny *= -1.0;
-        nz *= -1.0;
-      }
-
-      this._vertices.push(x, y, z, u, v, nx, ny, nz);
-
-      if (this._min) {
-        this._min[0] = Math.min(this._min[0], x);
-        this._min[1] = Math.min(this._min[1], y);
-        this._min[2] = Math.min(this._min[2], z);
-        this._max[0] = Math.max(this._max[0], x);
-        this._max[1] = Math.max(this._max[1], y);
-        this._max[2] = Math.max(this._max[2], z);
-      } else {
-        this._min = _glMatrix.vec3.fromValues(x, y, z);
-        this._max = _glMatrix.vec3.fromValues(x, y, z);
-      }
-
-      return this._vertexIndex++;
-    }
-  }, {
-    key: 'pushTriangle',
-    value: function pushTriangle(idxA, idxB, idxC) {
-      if (!this._geometryStarted) {
-        throw new Error('Cannot push triangles before calling startGeometry().');
-      }
-
-      this._highIndex = Math.max(this._highIndex, idxA, idxB, idxC);
-
-      idxA += this._vertexOffset;
-      idxB += this._vertexOffset;
-      idxC += this._vertexOffset;
-
-      if (this._flipWinding) {
-        this._indices.push(idxC, idxB, idxA);
-      } else {
-        this._indices.push(idxA, idxB, idxC);
-      }
-    }
-  }, {
-    key: 'clear',
-    value: function clear() {
-      if (this._geometryStarted) {
-        throw new Error('Cannot clear before ending the current geometry.');
-      }
-
-      this._vertices = [];
-      this._indices = [];
-      this._vertexOffset = 0;
-      this._min = null;
-      this._max = null;
-    }
-  }, {
-    key: 'finishPrimitive',
-    value: function finishPrimitive(renderer) {
-      if (!this._vertexOffset) {
-        throw new Error('Attempted to call finishPrimitive() before creating any geometry.');
-      }
-
-      var vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(this._vertices));
-      var indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(this._indices));
-
-      var attribs = [new _primitive.PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 32, 0), new _primitive.PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 32, 12), new _primitive.PrimitiveAttribute('NORMAL', vertexBuffer, 3, GL.FLOAT, 32, 20)];
-
-      var primitive = new _primitive.Primitive(attribs, this._indices.length);
-      primitive.setIndexBuffer(indexBuffer);
-      primitive.setBounds(this._min, this._max);
-
-      return primitive;
-    }
-  }, {
-    key: 'flipWinding',
-    set: function set(value) {
-      if (this._geometryStarted) {
-        throw new Error('Cannot change flipWinding before ending the current geometry.');
-      }
-      this._flipWinding = value;
-    },
-    get: function get() {
-      this._flipWinding;
-    }
-  }, {
-    key: 'invertNormals',
-    set: function set(value) {
-      if (this._geometryStarted) {
-        throw new Error('Cannot change invertNormals before ending the current geometry.');
-      }
-      this._invertNormals = value;
-    },
-    get: function get() {
-      this._invertNormals;
-    }
-  }, {
-    key: 'transform',
-    set: function set(value) {
-      if (this._geometryStarted) {
-        throw new Error('Cannot change transform before ending the current geometry.');
-      }
-      this._transform = value;
-      if (this._transform) {
-        if (!this._normalTransform) {
-          this._normalTransform = _glMatrix.mat3.create();
-        }
-        _glMatrix.mat3.fromMat4(this._normalTransform, this._transform);
-      }
-    },
-    get: function get() {
-      this._transform;
-    }
-  }, {
-    key: 'nextVertexIndex',
-    get: function get() {
-      return this._vertexIndex;
-    }
-  }]);
-
-  return PrimitiveStream;
-}();
-
-var GeometryBuilderBase = exports.GeometryBuilderBase = function () {
-  function GeometryBuilderBase(primitiveStream) {
-    _classCallCheck(this, GeometryBuilderBase);
-
-    if (primitiveStream) {
-      this._stream = primitiveStream;
-    } else {
-      this._stream = new PrimitiveStream();
-    }
-  }
-
-  _createClass(GeometryBuilderBase, [{
-    key: 'finishPrimitive',
-    value: function finishPrimitive(renderer) {
-      return this._stream.finishPrimitive(renderer);
-    }
-  }, {
-    key: 'clear',
-    value: function clear() {
-      this._stream.clear();
-    }
-  }, {
-    key: 'primitiveStream',
-    set: function set(value) {
-      this._stream = value;
-    },
-    get: function get() {
-      return this._stream;
-    }
-  }]);
-
-  return GeometryBuilderBase;
-}();
-
-/***/ }),
-
-/***/ "./src/loaders/gltf2.js":
-/*!******************************!*\
-  !*** ./src/loaders/gltf2.js ***!
-  \******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Gltf2Loader = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var _pbr = __webpack_require__(/*! ../materials/pbr.js */ "./src/materials/pbr.js");
-
-var _node2 = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _texture = __webpack_require__(/*! ../core/texture.js */ "./src/core/texture.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var GL = WebGLRenderingContext; // For enums
-
-var GLB_MAGIC = 0x46546C67;
-var CHUNK_TYPE = {
-  JSON: 0x4E4F534A,
-  BIN: 0x004E4942
-};
-
-function isAbsoluteUri(uri) {
-  var absRegEx = new RegExp('^' + window.location.protocol, 'i');
-  return !!uri.match(absRegEx);
-}
-
-function isDataUri(uri) {
-  var dataRegEx = /^data:/;
-  return !!uri.match(dataRegEx);
-}
-
-function resolveUri(uri, baseUrl) {
-  if (isAbsoluteUri(uri) || isDataUri(uri)) {
-    return uri;
-  }
-  return baseUrl + uri;
-}
-
-function getComponentCount(type) {
-  switch (type) {
-    case 'SCALAR':
-      return 1;
-    case 'VEC2':
-      return 2;
-    case 'VEC3':
-      return 3;
-    case 'VEC4':
-      return 4;
-    default:
-      return 0;
-  }
-}
-
-/**
- * Gltf2SceneLoader
- * Loads glTF 2.0 scenes into a renderable node tree.
- */
-
-var Gltf2Loader = exports.Gltf2Loader = function () {
-  function Gltf2Loader(renderer) {
-    _classCallCheck(this, Gltf2Loader);
-
-    this.renderer = renderer;
-    this._gl = renderer._gl;
-  }
-
-  _createClass(Gltf2Loader, [{
-    key: 'loadFromUrl',
-    value: function loadFromUrl(url) {
-      var _this = this;
-
-      return fetch(url).then(function (response) {
-        var i = url.lastIndexOf('/');
-        var baseUrl = i !== 0 ? url.substring(0, i + 1) : '';
-
-        if (url.endsWith('.gltf')) {
-          return response.json().then(function (json) {
-            return _this.loadFromJson(json, baseUrl);
-          });
-        } else if (url.endsWith('.glb')) {
-          return response.arrayBuffer().then(function (arrayBuffer) {
-            return _this.loadFromBinary(arrayBuffer, baseUrl);
-          });
-        } else {
-          throw new Error('Unrecognized file extension');
-        }
-      });
-    }
-  }, {
-    key: 'loadFromBinary',
-    value: function loadFromBinary(arrayBuffer, baseUrl) {
-      var headerView = new DataView(arrayBuffer, 0, 12);
-      var magic = headerView.getUint32(0, true);
-      var version = headerView.getUint32(4, true);
-      var length = headerView.getUint32(8, true);
-
-      if (magic != GLB_MAGIC) {
-        throw new Error('Invalid magic string in binary header.');
-      }
-
-      if (version != 2) {
-        throw new Error('Incompatible version in binary header.');
-      }
-
-      var chunks = {};
-      var chunkOffset = 12;
-      while (chunkOffset < length) {
-        var chunkHeaderView = new DataView(arrayBuffer, chunkOffset, 8);
-        var chunkLength = chunkHeaderView.getUint32(0, true);
-        var chunkType = chunkHeaderView.getUint32(4, true);
-        chunks[chunkType] = arrayBuffer.slice(chunkOffset + 8, chunkOffset + 8 + chunkLength);
-        chunkOffset += chunkLength + 8;
-      }
-
-      if (!chunks[CHUNK_TYPE.JSON]) {
-        throw new Error('File contained no json chunk.');
-      }
-
-      var decoder = new TextDecoder('utf-8');
-      var jsonString = decoder.decode(chunks[CHUNK_TYPE.JSON]);
-      var json = JSON.parse(jsonString);
-      return this.loadFromJson(json, baseUrl, chunks[CHUNK_TYPE.BIN]);
-    }
-  }, {
-    key: 'loadFromJson',
-    value: function loadFromJson(json, baseUrl, binaryChunk) {
-      if (!json.asset) {
-        throw new Error('Missing asset description.');
-      }
-
-      if (json.asset.minVersion != '2.0' && json.asset.version != '2.0') {
-        throw new Error('Incompatible asset version.');
-      }
-
-      var buffers = [];
-      if (binaryChunk) {
-        buffers[0] = new Gltf2Resource({}, baseUrl, binaryChunk);
-      } else {
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = json.buffers[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var buffer = _step.value;
-
-            buffers.push(new Gltf2Resource(buffer, baseUrl));
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-      }
-
-      var bufferViews = [];
-      var _iteratorNormalCompletion2 = true;
-      var _didIteratorError2 = false;
-      var _iteratorError2 = undefined;
-
-      try {
-        for (var _iterator2 = json.bufferViews[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-          var bufferView = _step2.value;
-
-          bufferViews.push(new Gltf2BufferView(bufferView, buffers));
-        }
-      } catch (err) {
-        _didIteratorError2 = true;
-        _iteratorError2 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion2 && _iterator2.return) {
-            _iterator2.return();
-          }
-        } finally {
-          if (_didIteratorError2) {
-            throw _iteratorError2;
-          }
-        }
-      }
-
-      var images = [];
-      if (json.images) {
-        var _iteratorNormalCompletion3 = true;
-        var _didIteratorError3 = false;
-        var _iteratorError3 = undefined;
-
-        try {
-          for (var _iterator3 = json.images[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-            var image = _step3.value;
-
-            images.push(new Gltf2Resource(image, baseUrl));
-          }
-        } catch (err) {
-          _didIteratorError3 = true;
-          _iteratorError3 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion3 && _iterator3.return) {
-              _iterator3.return();
-            }
-          } finally {
-            if (_didIteratorError3) {
-              throw _iteratorError3;
-            }
-          }
-        }
-      }
-
-      var textures = [];
-      if (json.textures) {
-        var _iteratorNormalCompletion4 = true;
-        var _didIteratorError4 = false;
-        var _iteratorError4 = undefined;
-
-        try {
-          for (var _iterator4 = json.textures[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
-            var texture = _step4.value;
-
-            var _image = images[texture.source];
-            var glTexture = _image.texture(bufferViews);
-            if (texture.sampler) {
-              var sampler = sampler[texture.sampler];
-              glTexture.sampler.minFilter = sampler.minFilter;
-              glTexture.sampler.magFilter = sampler.magFilter;
-              glTexture.sampler.wrapS = sampler.wrapS;
-              glTexture.sampler.wrapT = sampler.wrapT;
-            }
-            textures.push(glTexture);
-          }
-        } catch (err) {
-          _didIteratorError4 = true;
-          _iteratorError4 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion4 && _iterator4.return) {
-              _iterator4.return();
-            }
-          } finally {
-            if (_didIteratorError4) {
-              throw _iteratorError4;
-            }
-          }
-        }
-      }
-
-      function getTexture(textureInfo) {
-        if (!textureInfo) {
-          return null;
-        }
-        return textures[textureInfo.index];
-      }
-
-      var materials = [];
-      if (json.materials) {
-        var _iteratorNormalCompletion5 = true;
-        var _didIteratorError5 = false;
-        var _iteratorError5 = undefined;
-
-        try {
-          for (var _iterator5 = json.materials[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
-            var material = _step5.value;
-
-            var glMaterial = new _pbr.PbrMaterial();
-            var pbr = material.pbrMetallicRoughness || {};
-
-            glMaterial.baseColorFactor.value = pbr.baseColorFactor || [1, 1, 1, 1];
-            glMaterial.baseColor.texture = getTexture(pbr.baseColorTexture);
-            glMaterial.metallicRoughnessFactor.value = [pbr.metallicFactor || 1.0, pbr.roughnessFactor || 1.0];
-            glMaterial.metallicRoughness.texture = getTexture(pbr.metallicRoughnessTexture);
-            glMaterial.normal.texture = getTexture(json.normalTexture);
-            glMaterial.occlusion.texture = getTexture(json.occlusionTexture);
-            glMaterial.occlusionStrength.value = json.occlusionTexture && json.occlusionTexture.strength ? json.occlusionTexture.strength : 1.0;
-            glMaterial.emissiveFactor.value = material.emissiveFactor || [0, 0, 0];
-            glMaterial.emissive.texture = getTexture(json.emissiveTexture);
-            if (!glMaterial.emissive.texture && json.emissiveFactor) {
-              glMaterial.emissive.texture = new _texture.ColorTexture(1.0, 1.0, 1.0, 1.0);
-            }
-
-            switch (material.alphaMode) {
-              case 'BLEND':
-                glMaterial.state.blend = true;
-                break;
-              case 'MASK':
-                // Not really supported.
-                glMaterial.state.blend = true;
-                break;
-              default:
-                // Includes 'OPAQUE'
-                glMaterial.state.blend = false;
-            }
-
-            // glMaterial.alpha_mode = material.alphaMode;
-            // glMaterial.alpha_cutoff = material.alphaCutoff;
-            glMaterial.state.cullFace = !material.doubleSided;
-
-            materials.push(glMaterial);
-          }
-        } catch (err) {
-          _didIteratorError5 = true;
-          _iteratorError5 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion5 && _iterator5.return) {
-              _iterator5.return();
-            }
-          } finally {
-            if (_didIteratorError5) {
-              throw _iteratorError5;
-            }
-          }
-        }
-      }
-
-      var accessors = json.accessors;
-
-      var meshes = [];
-      var _iteratorNormalCompletion6 = true;
-      var _didIteratorError6 = false;
-      var _iteratorError6 = undefined;
-
-      try {
-        for (var _iterator6 = json.meshes[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
-          var mesh = _step6.value;
-
-          var glMesh = new Gltf2Mesh();
-          meshes.push(glMesh);
-
-          var _iteratorNormalCompletion8 = true;
-          var _didIteratorError8 = false;
-          var _iteratorError8 = undefined;
-
-          try {
-            for (var _iterator8 = mesh.primitives[Symbol.iterator](), _step8; !(_iteratorNormalCompletion8 = (_step8 = _iterator8.next()).done); _iteratorNormalCompletion8 = true) {
-              var primitive = _step8.value;
-
-              var _material = null;
-              if ('material' in primitive) {
-                _material = materials[primitive.material];
-              } else {
-                // Create a "default" material if the primitive has none.
-                _material = new _pbr.PbrMaterial();
-              }
-
-              var attributes = [];
-              var elementCount = 0;
-              /* let glPrimitive = new Gltf2Primitive(primitive, material);
-              glMesh.primitives.push(glPrimitive); */
-
-              var min = null;
-              var max = null;
-
-              for (var name in primitive.attributes) {
-                var accessor = accessors[primitive.attributes[name]];
-                var _bufferView = bufferViews[accessor.bufferView];
-                elementCount = accessor.count;
-
-                var glAttribute = new _primitive.PrimitiveAttribute(name, _bufferView.renderBuffer(this.renderer, GL.ARRAY_BUFFER), getComponentCount(accessor.type), accessor.componentType, _bufferView.byteStride || 0, accessor.byteOffset || 0);
-                glAttribute.normalized = accessor.normalized || false;
-
-                if (name == 'POSITION') {
-                  min = accessor.min;
-                  max = accessor.max;
-                }
-
-                attributes.push(glAttribute);
-              }
-
-              var glPrimitive = new _primitive.Primitive(attributes, elementCount, primitive.mode);
-
-              if ('indices' in primitive) {
-                var _accessor = accessors[primitive.indices];
-                var _bufferView2 = bufferViews[_accessor.bufferView];
-
-                glPrimitive.setIndexBuffer(_bufferView2.renderBuffer(this.renderer, GL.ELEMENT_ARRAY_BUFFER), _accessor.byteOffset || 0, _accessor.componentType);
-                glPrimitive.indexType = _accessor.componentType;
-                glPrimitive.indexByteOffset = _accessor.byteOffset || 0;
-                glPrimitive.elementCount = _accessor.count;
-              }
-
-              if (min && max) {
-                glPrimitive.setBounds(min, max);
-              }
-
-              // After all the attributes have been processed, get a program that is
-              // appropriate for both the material and the primitive attributes.
-              glMesh.primitives.push(this.renderer.createRenderPrimitive(glPrimitive, _material));
-            }
-          } catch (err) {
-            _didIteratorError8 = true;
-            _iteratorError8 = err;
-          } finally {
-            try {
-              if (!_iteratorNormalCompletion8 && _iterator8.return) {
-                _iterator8.return();
-              }
-            } finally {
-              if (_didIteratorError8) {
-                throw _iteratorError8;
-              }
-            }
-          }
-        }
-      } catch (err) {
-        _didIteratorError6 = true;
-        _iteratorError6 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion6 && _iterator6.return) {
-            _iterator6.return();
-          }
-        } finally {
-          if (_didIteratorError6) {
-            throw _iteratorError6;
-          }
-        }
-      }
-
-      var sceneNode = new _node2.Node();
-      var scene = json.scenes[json.scene];
-      var _iteratorNormalCompletion7 = true;
-      var _didIteratorError7 = false;
-      var _iteratorError7 = undefined;
-
-      try {
-        for (var _iterator7 = scene.nodes[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
-          var nodeId = _step7.value;
-
-          var node = json.nodes[nodeId];
-          sceneNode.addNode(this.processNodes(node, json.nodes, meshes));
-        }
-      } catch (err) {
-        _didIteratorError7 = true;
-        _iteratorError7 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion7 && _iterator7.return) {
-            _iterator7.return();
-          }
-        } finally {
-          if (_didIteratorError7) {
-            throw _iteratorError7;
-          }
-        }
-      }
-
-      return sceneNode;
-    }
-  }, {
-    key: 'processNodes',
-    value: function processNodes(node, nodes, meshes) {
-      var glNode = new _node2.Node();
-      glNode.name = node.name;
-
-      if ('mesh' in node) {
-        var mesh = meshes[node.mesh];
-        var _iteratorNormalCompletion9 = true;
-        var _didIteratorError9 = false;
-        var _iteratorError9 = undefined;
-
-        try {
-          for (var _iterator9 = mesh.primitives[Symbol.iterator](), _step9; !(_iteratorNormalCompletion9 = (_step9 = _iterator9.next()).done); _iteratorNormalCompletion9 = true) {
-            var primitive = _step9.value;
-
-            glNode.addRenderPrimitive(primitive);
-          }
-        } catch (err) {
-          _didIteratorError9 = true;
-          _iteratorError9 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion9 && _iterator9.return) {
-              _iterator9.return();
-            }
-          } finally {
-            if (_didIteratorError9) {
-              throw _iteratorError9;
-            }
-          }
-        }
-      }
-
-      if (node.matrix) {
-        glNode.matrix = new Float32Array(node.matrix);
-      } else if (node.translation || node.rotation || node.scale) {
-        if (node.translation) {
-          glNode.translation = new Float32Array(node.translation);
-        }
-
-        if (node.rotation) {
-          glNode.rotation = new Float32Array(node.rotation);
-        }
-
-        if (node.scale) {
-          glNode.scale = new Float32Array(node.scale);
-        }
-      }
-
-      if (node.children) {
-        var _iteratorNormalCompletion10 = true;
-        var _didIteratorError10 = false;
-        var _iteratorError10 = undefined;
-
-        try {
-          for (var _iterator10 = node.children[Symbol.iterator](), _step10; !(_iteratorNormalCompletion10 = (_step10 = _iterator10.next()).done); _iteratorNormalCompletion10 = true) {
-            var nodeId = _step10.value;
-
-            var _node = nodes[nodeId];
-            glNode.addNode(this.processNodes(_node, nodes, meshes));
-          }
-        } catch (err) {
-          _didIteratorError10 = true;
-          _iteratorError10 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion10 && _iterator10.return) {
-              _iterator10.return();
-            }
-          } finally {
-            if (_didIteratorError10) {
-              throw _iteratorError10;
-            }
-          }
-        }
-      }
-
-      return glNode;
-    }
-  }]);
-
-  return Gltf2Loader;
-}();
-
-var Gltf2Mesh = function Gltf2Mesh() {
-  _classCallCheck(this, Gltf2Mesh);
-
-  this.primitives = [];
-};
-
-var Gltf2BufferView = function () {
-  function Gltf2BufferView(json, buffers) {
-    _classCallCheck(this, Gltf2BufferView);
-
-    this.buffer = buffers[json.buffer];
-    this.byteOffset = json.byteOffset || 0;
-    this.byteLength = json.byteLength || null;
-    this.byteStride = json.byteStride;
-
-    this._viewPromise = null;
-    this._renderBuffer = null;
-  }
-
-  _createClass(Gltf2BufferView, [{
-    key: 'dataView',
-    value: function dataView() {
-      var _this2 = this;
-
-      if (!this._viewPromise) {
-        this._viewPromise = this.buffer.arrayBuffer().then(function (arrayBuffer) {
-          return new DataView(arrayBuffer, _this2.byteOffset, _this2.byteLength);
-        });
-      }
-      return this._viewPromise;
-    }
-  }, {
-    key: 'renderBuffer',
-    value: function renderBuffer(renderer, target) {
-      if (!this._renderBuffer) {
-        this._renderBuffer = renderer.createRenderBuffer(target, this.dataView());
-      }
-      return this._renderBuffer;
-    }
-  }]);
-
-  return Gltf2BufferView;
-}();
-
-var Gltf2Resource = function () {
-  function Gltf2Resource(json, baseUrl, arrayBuffer) {
-    _classCallCheck(this, Gltf2Resource);
-
-    this.json = json;
-    this.baseUrl = baseUrl;
-
-    this._dataPromise = null;
-    this._texture = null;
-    if (arrayBuffer) {
-      this._dataPromise = Promise.resolve(arrayBuffer);
-    }
-  }
-
-  _createClass(Gltf2Resource, [{
-    key: 'arrayBuffer',
-    value: function arrayBuffer() {
-      if (!this._dataPromise) {
-        if (isDataUri(this.json.uri)) {
-          var base64String = this.json.uri.replace('data:application/octet-stream;base64,', '');
-          var binaryArray = Uint8Array.from(atob(base64String), function (c) {
-            return c.charCodeAt(0);
-          });
-          this._dataPromise = Promise.resolve(binaryArray.buffer);
-          return this._dataPromise;
-        }
-
-        this._dataPromise = fetch(resolveUri(this.json.uri, this.baseUrl)).then(function (response) {
-          return response.arrayBuffer();
-        });
-      }
-      return this._dataPromise;
-    }
-  }, {
-    key: 'texture',
-    value: function texture(bufferViews) {
-      var _this3 = this;
-
-      if (!this._texture) {
-        var img = new Image();
-        this._texture = new _texture.ImageTexture(img);
-
-        if (this.json.uri) {
-          if (isDataUri(this.json.uri)) {
-            img.src = this.json.uri;
-          } else {
-            img.src = '' + this.baseUrl + this.json.uri;
-          }
-        } else {
-          var view = bufferViews[this.json.bufferView];
-          view.dataView().then(function (dataView) {
-            var blob = new Blob([dataView], { type: _this3.json.mimeType });
-            img.src = window.URL.createObjectURL(blob);
-          });
-        }
-      }
-      return this._texture;
-    }
-  }]);
-
-  return Gltf2Resource;
-}();
-
-/***/ }),
-
-/***/ "./src/materials/pbr.js":
-/*!******************************!*\
-  !*** ./src/materials/pbr.js ***!
-  \******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.PbrMaterial = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _renderer = __webpack_require__(/*! ../core/renderer.js */ "./src/core/renderer.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var VERTEX_SOURCE = '\nattribute vec3 POSITION, NORMAL;\nattribute vec2 TEXCOORD_0, TEXCOORD_1;\n\nuniform vec3 CAMERA_POSITION;\nuniform vec3 LIGHT_DIRECTION;\n\nvarying vec3 vLight; // Vector from vertex to light.\nvarying vec3 vView; // Vector from vertex to camera.\nvarying vec2 vTex;\n\n#ifdef USE_NORMAL_MAP\nattribute vec4 TANGENT;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_VERTEX_COLOR\nattribute vec4 COLOR_0;\nvarying vec4 vCol;\n#endif\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vec3 n = normalize(vec3(model * vec4(NORMAL, 0.0)));\n#ifdef USE_NORMAL_MAP\n  vec3 t = normalize(vec3(model * vec4(TANGENT.xyz, 0.0)));\n  vec3 b = cross(n, t) * TANGENT.w;\n  vTBN = mat3(t, b, n);\n#else\n  vNorm = n;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  vCol = COLOR_0;\n#endif\n\n  vTex = TEXCOORD_0;\n  vec4 mPos = model * vec4(POSITION, 1.0);\n  vLight = -LIGHT_DIRECTION;\n  vView = CAMERA_POSITION - mPos.xyz;\n  return proj * view * mPos;\n}';
-
-// These equations are borrowed with love from this docs from Epic because I
-// just don't have anything novel to bring to the PBR scene.
-// http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes_v2.pdf
-var EPIC_PBR_FUNCTIONS = '\nvec3 lambertDiffuse(vec3 cDiff) {\n  return cDiff / M_PI;\n}\n\nfloat specD(float a, float nDotH) {\n  float aSqr = a * a;\n  float f = ((nDotH * nDotH) * (aSqr - 1.0) + 1.0);\n  return aSqr / (M_PI * f * f);\n}\n\nfloat specG(float roughness, float nDotL, float nDotV) {\n  float k = (roughness + 1.0) * (roughness + 1.0) / 8.0;\n  float gl = nDotL / (nDotL * (1.0 - k) + k);\n  float gv = nDotV / (nDotV * (1.0 - k) + k);\n  return gl * gv;\n}\n\nvec3 specF(float vDotH, vec3 F0) {\n  float exponent = (-5.55473 * vDotH - 6.98316) * vDotH;\n  float base = 2.0;\n  return F0 + (1.0 - F0) * pow(base, exponent);\n}';
-
-var FRAGMENT_SOURCE = '\n#define M_PI 3.14159265\n\nuniform vec4 baseColorFactor;\n#ifdef USE_BASE_COLOR_MAP\nuniform sampler2D baseColorTex;\n#endif\n\nvarying vec3 vLight;\nvarying vec3 vView;\nvarying vec2 vTex;\n\n#ifdef USE_VERTEX_COLOR\nvarying vec4 vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\nuniform sampler2D normalTex;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_METAL_ROUGH_MAP\nuniform sampler2D metallicRoughnessTex;\n#endif\nuniform vec2 metallicRoughnessFactor;\n\n#ifdef USE_OCCLUSION\nuniform sampler2D occlusionTex;\nuniform float occlusionStrength;\n#endif\n\n#ifdef USE_EMISSIVE_TEXTURE\nuniform sampler2D emissiveTex;\n#endif\nuniform vec3 emissiveFactor;\n\nuniform vec3 LIGHT_COLOR;\n\nconst vec3 dielectricSpec = vec3(0.04);\nconst vec3 black = vec3(0.0);\n\n' + EPIC_PBR_FUNCTIONS + '\n\nvec4 fragment_main() {\n#ifdef USE_BASE_COLOR_MAP\n  vec4 baseColor = texture2D(baseColorTex, vTex) * baseColorFactor;\n#else\n  vec4 baseColor = baseColorFactor;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  baseColor *= vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\n  vec3 n = texture2D(normalTex, vTex).rgb;\n  n = normalize(vTBN * (2.0 * n - 1.0));\n#else\n  vec3 n = normalize(vNorm);\n#endif\n\n#ifdef FULLY_ROUGH\n  float metallic = 0.0;\n#else\n  float metallic = metallicRoughnessFactor.x;\n#endif\n\n  float roughness = metallicRoughnessFactor.y;\n\n#ifdef USE_METAL_ROUGH_MAP\n  vec4 metallicRoughness = texture2D(metallicRoughnessTex, vTex);\n  metallic *= metallicRoughness.b;\n  roughness *= metallicRoughness.g;\n#endif\n  \n  vec3 l = normalize(vLight);\n  vec3 v = normalize(vView);\n  vec3 h = normalize(l+v);\n\n  float nDotL = clamp(dot(n, l), 0.001, 1.0);\n  float nDotV = abs(dot(n, v)) + 0.001;\n  float nDotH = max(dot(n, h), 0.0);\n  float vDotH = max(dot(v, h), 0.0);\n\n  // From GLTF Spec\n  vec3 cDiff = mix(baseColor.rgb * (1.0 - dielectricSpec.r), black, metallic); // Diffuse color\n  vec3 F0 = mix(dielectricSpec, baseColor.rgb, metallic); // Specular color\n  float a = roughness * roughness;\n\n#ifdef FULLY_ROUGH\n  vec3 specular = F0 * 0.45;\n#else\n  vec3 F = specF(vDotH, F0);\n  float D = specD(a, nDotH);\n  float G = specG(roughness, nDotL, nDotV);\n  vec3 specular = (D * F * G) / (4.0 * nDotL * nDotV);\n#endif\n  float halfLambert = dot(n, l) * 0.5 + 0.5;\n  halfLambert *= halfLambert;\n\n  vec3 color = (halfLambert * LIGHT_COLOR * lambertDiffuse(cDiff)) + specular;\n\n#ifdef USE_OCCLUSION\n  float occlusion = texture2D(occlusionTex, vTex).r;\n  color = mix(color, color * occlusion, occlusionStrength);\n#endif\n  \n  vec3 emissive = emissiveFactor;\n#ifdef USE_EMISSIVE_TEXTURE\n  emissive *= texture2D(emissiveTex, vTex).rgb;\n#endif\n  color += emissive;\n\n  // gamma correction\n  //color = pow(color, vec3(1.0/2.2));\n\n  return vec4(color, baseColor.a);\n}';
-
-var PbrMaterial = exports.PbrMaterial = function (_Material) {
-  _inherits(PbrMaterial, _Material);
-
-  function PbrMaterial() {
-    _classCallCheck(this, PbrMaterial);
-
-    var _this = _possibleConstructorReturn(this, (PbrMaterial.__proto__ || Object.getPrototypeOf(PbrMaterial)).call(this));
-
-    _this.baseColor = _this.defineSampler('baseColorTex');
-    _this.metallicRoughness = _this.defineSampler('metallicRoughnessTex');
-    _this.normal = _this.defineSampler('normalTex');
-    _this.occlusion = _this.defineSampler('occlusionTex');
-    _this.emissive = _this.defineSampler('emissiveTex');
-
-    _this.baseColorFactor = _this.defineUniform('baseColorFactor', [1.0, 1.0, 1.0, 1.0]);
-    _this.metallicRoughnessFactor = _this.defineUniform('metallicRoughnessFactor', [1.0, 1.0]);
-    _this.occlusionStrength = _this.defineUniform('occlusionStrength', 1.0);
-    _this.emissiveFactor = _this.defineUniform('emissiveFactor', [0, 0, 0]);
-    return _this;
-  }
-
-  _createClass(PbrMaterial, [{
-    key: 'getProgramDefines',
-    value: function getProgramDefines(renderPrimitive) {
-      var programDefines = {};
-
-      if (renderPrimitive._attributeMask & _renderer.ATTRIB_MASK.COLOR_0) {
-        programDefines['USE_VERTEX_COLOR'] = 1;
-      }
-
-      if (renderPrimitive._attributeMask & _renderer.ATTRIB_MASK.TEXCOORD_0) {
-        if (this.baseColor.texture) {
-          programDefines['USE_BASE_COLOR_MAP'] = 1;
-        }
-
-        if (this.normal.texture && renderPrimitive._attributeMask & _renderer.ATTRIB_MASK.TANGENT) {
-          programDefines['USE_NORMAL_MAP'] = 1;
-        }
-
-        if (this.metallicRoughness.texture) {
-          programDefines['USE_METAL_ROUGH_MAP'] = 1;
-        }
-
-        if (this.occlusion.texture) {
-          programDefines['USE_OCCLUSION'] = 1;
-        }
-
-        if (this.emissive.texture) {
-          programDefines['USE_EMISSIVE_TEXTURE'] = 1;
-        }
-      }
-
-      if ((!this.metallicRoughness.texture || !(renderPrimitive._attributeMask & _renderer.ATTRIB_MASK.TEXCOORD_0)) && this.metallicRoughnessFactor.value[1] == 1.0) {
-        programDefines['FULLY_ROUGH'] = 1;
-      }
-
-      return programDefines;
-    }
-  }, {
-    key: 'materialName',
-    get: function get() {
-      return 'PBR';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return VERTEX_SOURCE;
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return FRAGMENT_SOURCE;
-    }
-  }]);
-
-  return PbrMaterial;
-}(_material.Material);
-
-/***/ }),
-
-/***/ "./src/math/gl-matrix.js":
-/*!*******************************!*\
-  !*** ./src/math/gl-matrix.js ***!
-  \*******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.vec4 = exports.vec3 = exports.vec2 = exports.quat2 = exports.quat = exports.mat4 = exports.mat3 = exports.mat2d = exports.mat2 = exports.glMatrix = undefined;
-
-var _common = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/common.js */ "./node_modules/gl-matrix/src/gl-matrix/common.js");
-
-var glMatrix = _interopRequireWildcard(_common);
-
-var _mat = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/mat2.js */ "./node_modules/gl-matrix/src/gl-matrix/mat2.js");
-
-var mat2 = _interopRequireWildcard(_mat);
-
-var _mat2d = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/mat2d.js */ "./node_modules/gl-matrix/src/gl-matrix/mat2d.js");
-
-var mat2d = _interopRequireWildcard(_mat2d);
-
-var _mat2 = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/mat3.js */ "./node_modules/gl-matrix/src/gl-matrix/mat3.js");
-
-var mat3 = _interopRequireWildcard(_mat2);
-
-var _mat3 = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/mat4.js */ "./node_modules/gl-matrix/src/gl-matrix/mat4.js");
-
-var mat4 = _interopRequireWildcard(_mat3);
-
-var _quat = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/quat.js */ "./node_modules/gl-matrix/src/gl-matrix/quat.js");
-
-var quat = _interopRequireWildcard(_quat);
-
-var _quat2 = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/quat2.js */ "./node_modules/gl-matrix/src/gl-matrix/quat2.js");
-
-var quat2 = _interopRequireWildcard(_quat2);
-
-var _vec = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/vec2.js */ "./node_modules/gl-matrix/src/gl-matrix/vec2.js");
-
-var vec2 = _interopRequireWildcard(_vec);
-
-var _vec2 = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/vec3.js */ "./node_modules/gl-matrix/src/gl-matrix/vec3.js");
-
-var vec3 = _interopRequireWildcard(_vec2);
-
-var _vec3 = __webpack_require__(/*! ../../node_modules/gl-matrix/src/gl-matrix/vec4.js */ "./node_modules/gl-matrix/src/gl-matrix/vec4.js");
-
-var vec4 = _interopRequireWildcard(_vec3);
-
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
-
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-exports.glMatrix = glMatrix;
-exports.mat2 = mat2;
-exports.mat2d = mat2d;
-exports.mat3 = mat3;
-exports.mat4 = mat4;
-exports.quat = quat;
-exports.quat2 = quat2;
-exports.vec2 = vec2;
-exports.vec3 = vec3;
-exports.vec4 = vec4;
-
-/***/ }),
-
-/***/ "./src/math/ray.js":
-/*!*************************!*\
-  !*** ./src/math/ray.js ***!
-  \*************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Ray = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var _glMatrix = __webpack_require__(/*! ./gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var normalMat = _glMatrix.mat3.create();
-
-var RAY_INTERSECTION_OFFSET = 0.02;
-
-var Ray = exports.Ray = function () {
-  function Ray() {
-    var matrix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
-
-    _classCallCheck(this, Ray);
-
-    this.origin = _glMatrix.vec3.create();
-
-    this._dir = _glMatrix.vec3.create();
-    this._dir[2] = -1.0;
-
-    if (matrix) {
-      _glMatrix.vec3.transformMat4(this.origin, this.origin, matrix);
-      _glMatrix.mat3.fromMat4(normalMat, matrix);
-      _glMatrix.vec3.transformMat3(this._dir, this._dir, normalMat);
-    }
-
-    // To force the inverse and sign calculations.
-    this.dir = this._dir;
-  }
-
-  _createClass(Ray, [{
-    key: 'intersectsAABB',
-
-
-    // Borrowed from:
-    // eslint-disable-next-line max-len
-    // https://www.scratchapixel.com/lessons/3d-basic-rendering/minimal-ray-tracer-rendering-simple-shapes/ray-box-intersection
-    value: function intersectsAABB(min, max) {
-      var r = this;
-
-      var bounds = [min, max];
-
-      var tmin = (bounds[r.sign[0]][0] - r.origin[0]) * r.inv_dir[0];
-      var tmax = (bounds[1 - r.sign[0]][0] - r.origin[0]) * r.inv_dir[0];
-      var tymin = (bounds[r.sign[1]][1] - r.origin[1]) * r.inv_dir[1];
-      var tymax = (bounds[1 - r.sign[1]][1] - r.origin[1]) * r.inv_dir[1];
-
-      if (tmin > tymax || tymin > tmax) {
-        return null;
-      }
-      if (tymin > tmin) {
-        tmin = tymin;
-      }
-      if (tymax < tmax) {
-        tmax = tymax;
-      }
-
-      var tzmin = (bounds[r.sign[2]][2] - r.origin[2]) * r.inv_dir[2];
-      var tzmax = (bounds[1 - r.sign[2]][2] - r.origin[2]) * r.inv_dir[2];
-
-      if (tmin > tzmax || tzmin > tmax) {
-        return null;
-      }
-      if (tzmin > tmin) {
-        tmin = tzmin;
-      }
-      if (tzmax < tmax) {
-        tmax = tzmax;
-      }
-
-      var t = -1;
-      if (tmin > 0 && tmax > 0) {
-        t = Math.min(tmin, tmax);
-      } else if (tmin > 0) {
-        t = tmin;
-      } else if (tmax > 0) {
-        t = tmax;
-      } else {
-        // Intersection is behind the ray origin.
-        return null;
-      }
-
-      // Push ray intersection point back along the ray a bit so that cursors
-      // don't accidentally intersect with the hit surface.
-      t -= RAY_INTERSECTION_OFFSET;
-
-      // Return the point where the ray first intersected with the AABB.
-      var intersectionPoint = _glMatrix.vec3.clone(this._dir);
-      _glMatrix.vec3.scale(intersectionPoint, intersectionPoint, t);
-      _glMatrix.vec3.add(intersectionPoint, intersectionPoint, this.origin);
-      return intersectionPoint;
-    }
-  }, {
-    key: 'dir',
-    get: function get() {
-      return this._dir;
-    },
-    set: function set(value) {
-      this._dir = _glMatrix.vec3.copy(this._dir, value);
-      _glMatrix.vec3.normalize(this._dir, this._dir);
-
-      this.inv_dir = _glMatrix.vec3.fromValues(1.0 / this._dir[0], 1.0 / this._dir[1], 1.0 / this._dir[2]);
-
-      this.sign = [this.inv_dir[0] < 0 ? 1 : 0, this.inv_dir[1] < 0 ? 1 : 0, this.inv_dir[2] < 0 ? 1 : 0];
-    }
-  }]);
-
-  return Ray;
-}();
-
-/***/ }),
-
-/***/ "./src/nodes/bounds-renderer.js":
-/*!**************************************!*\
-  !*** ./src/nodes/bounds-renderer.js ***!
-  \**************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.BoundsRenderer = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-This file renders a passed in XRStageBounds object and attempts
-to render geometry on the floor to indicate where the bounds is.
-XRStageBounds' `geometry` is a series of XRStageBoundsPoints (in
-clockwise-order) with `x` and `z` properties for each.
-*/
-
-var GL = WebGLRenderingContext; // For enums
-
-var BoundsMaterial = function (_Material) {
-  _inherits(BoundsMaterial, _Material);
-
-  function BoundsMaterial() {
-    _classCallCheck(this, BoundsMaterial);
-
-    var _this = _possibleConstructorReturn(this, (BoundsMaterial.__proto__ || Object.getPrototypeOf(BoundsMaterial)).call(this));
-
-    _this.state.blend = true;
-    _this.state.blendFuncSrc = GL.SRC_ALPHA;
-    _this.state.blendFuncDst = GL.ONE;
-    _this.state.depthTest = false;
-    return _this;
-  }
-
-  _createClass(BoundsMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'BOUNDS_RENDERER';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    precision mediump float;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 1.0, 0.0, 0.3);\n    }';
-    }
-  }]);
-
-  return BoundsMaterial;
-}(_material.Material);
-
-var BoundsRenderer = exports.BoundsRenderer = function (_Node) {
-  _inherits(BoundsRenderer, _Node);
-
-  function BoundsRenderer() {
-    _classCallCheck(this, BoundsRenderer);
-
-    var _this2 = _possibleConstructorReturn(this, (BoundsRenderer.__proto__ || Object.getPrototypeOf(BoundsRenderer)).call(this));
-
-    _this2._stageBounds = null;
-    return _this2;
-  }
-
-  _createClass(BoundsRenderer, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      this.stageBounds = this._stageBounds;
-    }
-  }, {
-    key: 'stageBounds',
-    get: function get() {
-      return this._stageBounds;
-    },
-    set: function set(stageBounds) {
-      if (this._stageBounds) {
-        this.clearRenderPrimitives();
-      }
-      this._stageBounds = stageBounds;
-      if (!stageBounds || stageBounds.length === 0 || !this._renderer) {
-        return;
-      }
-
-      var verts = [];
-      var indices = [];
-
-      // Tessellate the bounding points from XRStageBounds and connect
-      // each point to a neighbor and 0,0,0.
-      var pointCount = stageBounds.geometry.length;
-      for (var i = 0; i < pointCount; i++) {
-        var point = stageBounds.geometry[i];
-        verts.push(point.x, 0, point.z);
-        indices.push(i, i === 0 ? pointCount - 1 : i - 1, pointCount);
-      }
-      // Center point
-      verts.push(0, 0, 0);
-
-      var vertexBuffer = this._renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(verts));
-      var indexBuffer = this._renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));
-
-      var attribs = [new _primitive.PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 12, 0)];
-
-      var primitive = new _primitive.Primitive(attribs, indices.length);
-      primitive.setIndexBuffer(indexBuffer);
-
-      var renderPrimitive = this._renderer.createRenderPrimitive(primitive, new BoundsMaterial());
-      this.addRenderPrimitive(renderPrimitive);
-    }
-  }]);
-
-  return BoundsRenderer;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/button.js":
-/*!*****************************!*\
-  !*** ./src/nodes/button.js ***!
-  \*****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.ButtonNode = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitiveStream = __webpack_require__(/*! ../geometry/primitive-stream.js */ "./src/geometry/primitive-stream.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var BUTTON_SIZE = 0.1;
-var BUTTON_CORNER_RADIUS = 0.025;
-var BUTTON_CORNER_SEGMENTS = 8;
-var BUTTON_ICON_SIZE = 0.07;
-var BUTTON_LAYER_DISTANCE = 0.005;
-var BUTTON_COLOR = 0.75;
-var BUTTON_ALPHA = 0.85;
-var BUTTON_HOVER_COLOR = 0.9;
-var BUTTON_HOVER_ALPHA = 1.0;
-var BUTTON_HOVER_SCALE = 1.1;
-var BUTTON_HOVER_TRANSITION_TIME_MS = 200;
-
-var ButtonMaterial = function (_Material) {
-  _inherits(ButtonMaterial, _Material);
-
-  function ButtonMaterial() {
-    _classCallCheck(this, ButtonMaterial);
-
-    var _this = _possibleConstructorReturn(this, (ButtonMaterial.__proto__ || Object.getPrototypeOf(ButtonMaterial)).call(this));
-
-    _this.state.blend = true;
-
-    _this.defineUniform('hoverAmount', 0);
-    return _this;
-  }
-
-  _createClass(ButtonMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'BUTTON_MATERIAL';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n\n    uniform float hoverAmount;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      float scale = mix(1.0, ' + BUTTON_HOVER_SCALE + ', hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    uniform float hoverAmount;\n\n    const vec4 default_color = vec4(' + BUTTON_COLOR + ', ' + BUTTON_COLOR + ', ' + BUTTON_COLOR + ', ' + BUTTON_ALPHA + ');\n    const vec4 hover_color = vec4(' + BUTTON_HOVER_COLOR + ', ' + BUTTON_HOVER_COLOR + ',\n                                  ' + BUTTON_HOVER_COLOR + ', ' + BUTTON_HOVER_ALPHA + ');\n\n    vec4 fragment_main() {\n      return mix(default_color, hover_color, hoverAmount);\n    }';
-    }
-  }]);
-
-  return ButtonMaterial;
-}(_material.Material);
-
-var ButtonIconMaterial = function (_Material2) {
-  _inherits(ButtonIconMaterial, _Material2);
-
-  function ButtonIconMaterial() {
-    _classCallCheck(this, ButtonIconMaterial);
-
-    var _this2 = _possibleConstructorReturn(this, (ButtonIconMaterial.__proto__ || Object.getPrototypeOf(ButtonIconMaterial)).call(this));
-
-    _this2.state.blend = true;
-
-    _this2.defineUniform('hoverAmount', 0);
-    _this2.icon = _this2.defineSampler('icon');
-    return _this2;
-  }
-
-  _createClass(ButtonIconMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'BUTTON_ICON_MATERIAL';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    uniform float hoverAmount;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      float scale = mix(1.0, ' + BUTTON_HOVER_SCALE + ', hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    uniform sampler2D icon;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(icon, vTexCoord);\n    }';
-    }
-  }]);
-
-  return ButtonIconMaterial;
-}(_material.Material);
-
-var ButtonNode = exports.ButtonNode = function (_Node) {
-  _inherits(ButtonNode, _Node);
-
-  function ButtonNode(iconTexture, callback) {
-    _classCallCheck(this, ButtonNode);
-
-    // All buttons are selectable by default.
-    var _this3 = _possibleConstructorReturn(this, (ButtonNode.__proto__ || Object.getPrototypeOf(ButtonNode)).call(this));
-
-    _this3.selectable = true;
-
-    _this3._selectHandler = callback;
-    _this3._iconTexture = iconTexture;
-    _this3._hovered = false;
-    _this3._hoverT = 0;
-    return _this3;
-  }
-
-  _createClass(ButtonNode, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      var stream = new _primitiveStream.PrimitiveStream();
-
-      var hd = BUTTON_LAYER_DISTANCE * 0.5;
-
-      // Build a rounded rect for the background.
-      var hs = BUTTON_SIZE * 0.5;
-      var ihs = hs - BUTTON_CORNER_RADIUS;
-      stream.startGeometry();
-
-      // Rounded corners and sides
-      var segments = BUTTON_CORNER_SEGMENTS * 4;
-      for (var i = 0; i < segments; ++i) {
-        var rad = i * (Math.PI * 2.0 / segments);
-        var x = Math.cos(rad) * BUTTON_CORNER_RADIUS;
-        var y = Math.sin(rad) * BUTTON_CORNER_RADIUS;
-        var section = Math.floor(i / BUTTON_CORNER_SEGMENTS);
-        switch (section) {
-          case 0:
-            x += ihs;
-            y += ihs;
-            break;
-          case 1:
-            x -= ihs;
-            y += ihs;
-            break;
-          case 2:
-            x -= ihs;
-            y -= ihs;
-            break;
-          case 3:
-            x += ihs;
-            y -= ihs;
-            break;
-        }
-
-        stream.pushVertex(x, y, -hd, 0, 0, 0, 0, 1);
-
-        if (i > 1) {
-          stream.pushTriangle(0, i - 1, i);
-        }
-      }
-
-      stream.endGeometry();
-
-      var buttonPrimitive = stream.finishPrimitive(renderer);
-      this._buttonRenderPrimitive = renderer.createRenderPrimitive(buttonPrimitive, new ButtonMaterial());
-      this.addRenderPrimitive(this._buttonRenderPrimitive);
-
-      // Build a simple textured quad for the foreground.
-      hs = BUTTON_ICON_SIZE * 0.5;
-      stream.clear();
-      stream.startGeometry();
-
-      stream.pushVertex(-hs, hs, hd, 0, 0, 0, 0, 1);
-      stream.pushVertex(-hs, -hs, hd, 0, 1, 0, 0, 1);
-      stream.pushVertex(hs, -hs, hd, 1, 1, 0, 0, 1);
-      stream.pushVertex(hs, hs, hd, 1, 0, 0, 0, 1);
-
-      stream.pushTriangle(0, 1, 2);
-      stream.pushTriangle(0, 2, 3);
-
-      stream.endGeometry();
-
-      var iconPrimitive = stream.finishPrimitive(renderer);
-      var iconMaterial = new ButtonIconMaterial();
-      iconMaterial.icon.texture = this._iconTexture;
-      this._iconRenderPrimitive = renderer.createRenderPrimitive(iconPrimitive, iconMaterial);
-      this.addRenderPrimitive(this._iconRenderPrimitive);
-    }
-  }, {
-    key: 'onHoverStart',
-    value: function onHoverStart() {
-      this._hovered = true;
-    }
-  }, {
-    key: 'onHoverEnd',
-    value: function onHoverEnd() {
-      this._hovered = false;
-    }
-  }, {
-    key: '_updateHoverState',
-    value: function _updateHoverState() {
-      var t = this._hoverT / BUTTON_HOVER_TRANSITION_TIME_MS;
-      // Cubic Ease In/Out
-      // TODO: Get a better animation system
-      var hoverAmount = t < .5 ? 4 * t * t * t : (t - 1) * (2 * t - 2) * (2 * t - 2) + 1;
-      this._buttonRenderPrimitive.uniforms.hoverAmount.value = hoverAmount;
-      this._iconRenderPrimitive.uniforms.hoverAmount.value = hoverAmount;
-    }
-  }, {
-    key: 'onUpdate',
-    value: function onUpdate(timestamp, frameDelta) {
-      if (this._hovered && this._hoverT < BUTTON_HOVER_TRANSITION_TIME_MS) {
-        this._hoverT = Math.min(BUTTON_HOVER_TRANSITION_TIME_MS, this._hoverT + frameDelta);
-        this._updateHoverState();
-      } else if (!this._hovered && this._hoverT > 0) {
-        this._hoverT = Math.max(0.0, this._hoverT - frameDelta);
-        this._updateHoverState();
-      }
-    }
-  }, {
-    key: 'iconTexture',
-    get: function get() {
-      return this._iconTexture;
-    },
-    set: function set(value) {
-      if (this._iconTexture == value) {
-        return;
-      }
-
-      this._iconTexture = value;
-      this._iconRenderPrimitive.samplers.icon.texture = value;
-    }
-  }]);
-
-  return ButtonNode;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/cube-sea.js":
-/*!*******************************!*\
-  !*** ./src/nodes/cube-sea.js ***!
-  \*******************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.CubeSeaNode = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _texture = __webpack_require__(/*! ../core/texture.js */ "./src/core/texture.js");
-
-var _boxBuilder = __webpack_require__(/*! ../geometry/box-builder.js */ "./src/geometry/box-builder.js");
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var CubeSeaMaterial = function (_Material) {
-  _inherits(CubeSeaMaterial, _Material);
-
-  function CubeSeaMaterial() {
-    var heavy = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
-
-    _classCallCheck(this, CubeSeaMaterial);
-
-    var _this = _possibleConstructorReturn(this, (CubeSeaMaterial.__proto__ || Object.getPrototypeOf(CubeSeaMaterial)).call(this));
-
-    _this.heavy = heavy;
-
-    _this.baseColor = _this.defineSampler('baseColor');
-    return _this;
-  }
-
-  _createClass(CubeSeaMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'CUBE_SEA';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    attribute vec3 NORMAL;\n\n    varying vec2 vTexCoord;\n    varying vec3 vLight;\n\n    const vec3 lightDir = vec3(0.75, 0.5, 1.0);\n    const vec3 ambientColor = vec3(0.5, 0.5, 0.5);\n    const vec3 lightColor = vec3(0.75, 0.75, 0.75);\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec3 normalRotated = vec3(model * vec4(NORMAL, 0.0));\n      float lightFactor = max(dot(normalize(lightDir), normalRotated), 0.0);\n      vLight = ambientColor + (lightColor * lightFactor);\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      if (!this.heavy) {
-        return '\n      precision mediump float;\n      uniform sampler2D baseColor;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec4 fragment_main() {\n        return vec4(vLight, 1.0) * texture2D(baseColor, vTexCoord);\n      }';
-      } else {
-        // Used when we want to stress the GPU a bit more.
-        // Stolen with love from https://www.clicktorelease.com/code/codevember-2016/4/
-        return '\n      precision mediump float;\n\n      uniform sampler2D diffuse;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec2 dimensions = vec2(64, 64);\n      float seed = 0.42;\n\n      vec2 hash( vec2 p ) {\n        p=vec2(dot(p,vec2(127.1,311.7)),dot(p,vec2(269.5,183.3)));\n        return fract(sin(p)*18.5453);\n      }\n\n      vec3 hash3( vec2 p ) {\n          vec3 q = vec3( dot(p,vec2(127.1,311.7)),\n                 dot(p,vec2(269.5,183.3)),\n                 dot(p,vec2(419.2,371.9)) );\n        return fract(sin(q)*43758.5453);\n      }\n\n      float iqnoise( in vec2 x, float u, float v ) {\n        vec2 p = floor(x);\n        vec2 f = fract(x);\n        float k = 1.0+63.0*pow(1.0-v,4.0);\n        float va = 0.0;\n        float wt = 0.0;\n        for( int j=-2; j<=2; j++ )\n          for( int i=-2; i<=2; i++ ) {\n            vec2 g = vec2( float(i),float(j) );\n            vec3 o = hash3( p + g )*vec3(u,u,1.0);\n            vec2 r = g - f + o.xy;\n            float d = dot(r,r);\n            float ww = pow( 1.0-smoothstep(0.0,1.414,sqrt(d)), k );\n            va += o.z*ww;\n            wt += ww;\n          }\n        return va/wt;\n      }\n\n      // return distance, and cell id\n      vec2 voronoi( in vec2 x ) {\n        vec2 n = floor( x );\n        vec2 f = fract( x );\n        vec3 m = vec3( 8.0 );\n        for( int j=-1; j<=1; j++ )\n          for( int i=-1; i<=1; i++ ) {\n            vec2  g = vec2( float(i), float(j) );\n            vec2  o = hash( n + g );\n            vec2  r = g - f + (0.5+0.5*sin(seed+6.2831*o));\n            float d = dot( r, r );\n            if( d<m.x )\n              m = vec3( d, o );\n          }\n        return vec2( sqrt(m.x), m.y+m.z );\n      }\n\n      vec4 fragment_main() {\n        vec2 uv = ( vTexCoord );\n        uv *= vec2( 10., 10. );\n        uv += seed;\n        vec2 p = 0.5 - 0.5*sin( 0.*vec2(1.01,1.71) );\n\n        vec2 c = voronoi( uv );\n        vec3 col = vec3( c.y / 2. );\n\n        float f = iqnoise( 1. * uv + c.y, p.x, p.y );\n        col *= 1.0 + .25 * vec3( f );\n\n        return vec4(vLight, 1.0) * texture2D(diffuse, vTexCoord) * vec4( col, 1. );\n      }';
-      }
-    }
-  }]);
-
-  return CubeSeaMaterial;
-}(_material.Material);
-
-var CubeSeaNode = exports.CubeSeaNode = function (_Node) {
-  _inherits(CubeSeaNode, _Node);
-
-  function CubeSeaNode() {
-    var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
-
-    _classCallCheck(this, CubeSeaNode);
-
-    // Test variables
-    // If true, use a very heavyweight shader to stress the GPU.
-    var _this2 = _possibleConstructorReturn(this, (CubeSeaNode.__proto__ || Object.getPrototypeOf(CubeSeaNode)).call(this));
-
-    _this2.heavyGpu = !!options.heavyGpu;
-
-    // Number and size of the static cubes. Warning, large values
-    // don't render right due to overflow of the int16 indices.
-    _this2.cubeCount = options.cubeCount || (_this2.heavyGpu ? 12 : 10);
-    _this2.cubeScale = options.cubeScale || 1.0;
-
-    // Draw only half the world cubes. Helps test variable render cost
-    // when combined with heavyGpu.
-    _this2.halfOnly = !!options.halfOnly;
-
-    // Automatically spin the world cubes. Intended for automated testing,
-    // not recommended for viewing in a headset.
-    _this2.autoRotate = !!options.autoRotate;
-
-    _this2._texture = new _texture.UrlTexture(options.imageUrl || 'media/textures/cube-sea.png');
-
-    _this2._material = new CubeSeaMaterial(_this2.heavyGpu);
-    _this2._material.baseColor.texture = _this2._texture;
-
-    _this2._renderPrimitive = null;
-    return _this2;
-  }
-
-  _createClass(CubeSeaNode, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      this._renderPrimitive = null;
-
-      var boxBuilder = new _boxBuilder.BoxBuilder();
-
-      // Build the spinning "hero" cubes
-      boxBuilder.pushCube([0, 0.25, -0.8], 0.1);
-      boxBuilder.pushCube([0.8, 0.25, 0], 0.1);
-      boxBuilder.pushCube([0, 0.25, 0.8], 0.1);
-      boxBuilder.pushCube([-0.8, 0.25, 0], 0.1);
-
-      var heroPrimitive = boxBuilder.finishPrimitive(renderer);
-
-      this.heroNode = renderer.createMesh(heroPrimitive, this._material);
-
-      this.rebuildCubes(boxBuilder);
-
-      this.cubeSeaNode = new _node.Node();
-      this.cubeSeaNode.addRenderPrimitive(this._renderPrimitive);
-
-      this.addNode(this.cubeSeaNode);
-      this.addNode(this.heroNode);
-
-      return this.waitForComplete();
-    }
-  }, {
-    key: 'rebuildCubes',
-    value: function rebuildCubes(boxBuilder) {
-      if (!this._renderer) {
-        return;
-      }
-
-      if (!boxBuilder) {
-        boxBuilder = new _boxBuilder.BoxBuilder();
-      } else {
-        boxBuilder.clear();
-      }
-
-      var size = 0.4 * this.cubeScale;
-
-      // Build the cube sea
-      var halfGrid = this.cubeCount * 0.5;
-      for (var x = 0; x < this.cubeCount; ++x) {
-        for (var y = 0; y < this.cubeCount; ++y) {
-          for (var z = 0; z < this.cubeCount; ++z) {
-            var pos = [x - halfGrid, y - halfGrid, z - halfGrid];
-            // Only draw cubes on one side. Useful for testing variable render
-            // cost that depends on view direction.
-            if (this.halfOnly && pos[0] < 0) {
-              continue;
-            }
-
-            // Don't place a cube in the center of the grid.
-            if (pos[0] == 0 && pos[1] == 0 && pos[2] == 0) {
-              continue;
-            }
-
-            boxBuilder.pushCube(pos, size);
-          }
-        }
-      }
-
-      if (this.cubeCount > 12) {
-        // Each cube has 6 sides with 2 triangles and 3 indices per triangle, so
-        // the total number of indices needed is cubeCount^3 * 36. This exceeds
-        // the short index range past 12 cubes.
-        boxBuilder.indexType = 5125; // gl.UNSIGNED_INT
-      }
-      var cubeSeaPrimitive = boxBuilder.finishPrimitive(this._renderer);
-
-      if (!this._renderPrimitive) {
-        this._renderPrimitive = this._renderer.createRenderPrimitive(cubeSeaPrimitive, this._material);
-      } else {
-        this._renderPrimitive.setPrimitive(cubeSeaPrimitive);
-      }
-    }
-  }, {
-    key: 'onUpdate',
-    value: function onUpdate(timestamp, frameDelta) {
-      if (this.autoRotate) {
-        _glMatrix.mat4.fromRotation(this.cubeSeaNode.matrix, timestamp / 500, [0, -1, 0]);
-      }
-      _glMatrix.mat4.fromRotation(this.heroNode.matrix, timestamp / 2000, [0, 1, 0]);
-    }
-  }]);
-
-  return CubeSeaNode;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/drop-shadow.js":
-/*!**********************************!*\
-  !*** ./src/nodes/drop-shadow.js ***!
-  \**********************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.DropShadowNode = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitiveStream = __webpack_require__(/*! ../geometry/primitive-stream.js */ "./src/geometry/primitive-stream.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var GL = WebGLRenderingContext; // For enums
-
-var SHADOW_SEGMENTS = 32;
-var SHADOW_GROUND_OFFSET = 0.01;
-var SHADOW_CENTER_ALPHA = 0.7;
-var SHADOW_INNER_ALPHA = 0.3;
-var SHADOW_OUTER_ALPHA = 0.0;
-var SHADOW_INNER_RADIUS = 0.6;
-var SHADOW_OUTER_RADIUS = 1.0;
-
-var DropShadowMaterial = function (_Material) {
-  _inherits(DropShadowMaterial, _Material);
-
-  function DropShadowMaterial() {
-    _classCallCheck(this, DropShadowMaterial);
-
-    var _this = _possibleConstructorReturn(this, (DropShadowMaterial.__proto__ || Object.getPrototypeOf(DropShadowMaterial)).call(this));
-
-    _this.state.blend = true;
-    _this.state.blendFuncSrc = GL.ONE;
-    _this.state.blendFuncDst = GL.ONE_MINUS_SRC_ALPHA;
-    _this.state.depthFunc = GL.LEQUAL;
-    _this.state.depthMask = false;
-    return _this;
-  }
-
-  _createClass(DropShadowMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'DROP_SHADOW_MATERIAL';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying float vShadow;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vShadow = TEXCOORD_0.x;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    varying float vShadow;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 0.0, 0.0, vShadow);\n    }';
-    }
-  }]);
-
-  return DropShadowMaterial;
-}(_material.Material);
-
-var DropShadowNode = exports.DropShadowNode = function (_Node) {
-  _inherits(DropShadowNode, _Node);
-
-  function DropShadowNode(iconTexture, callback) {
-    _classCallCheck(this, DropShadowNode);
-
-    return _possibleConstructorReturn(this, (DropShadowNode.__proto__ || Object.getPrototypeOf(DropShadowNode)).call(this));
-  }
-
-  _createClass(DropShadowNode, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      var stream = new _primitiveStream.PrimitiveStream();
-
-      stream.startGeometry();
-
-      // Shadow center
-      stream.pushVertex(0, SHADOW_GROUND_OFFSET, 0, SHADOW_CENTER_ALPHA);
-
-      var segRad = Math.PI * 2.0 / SHADOW_SEGMENTS;
-
-      var idx = void 0;
-      for (var i = 0; i < SHADOW_SEGMENTS; ++i) {
-        idx = stream.nextVertexIndex;
-
-        var rad = i * segRad;
-        var x = Math.cos(rad);
-        var y = Math.sin(rad);
-        stream.pushVertex(x * SHADOW_INNER_RADIUS, SHADOW_GROUND_OFFSET, y * SHADOW_INNER_RADIUS, SHADOW_INNER_ALPHA);
-        stream.pushVertex(x * SHADOW_OUTER_RADIUS, SHADOW_GROUND_OFFSET, y * SHADOW_OUTER_RADIUS, SHADOW_OUTER_ALPHA);
-
-        if (i > 0) {
-          // Inner circle
-          stream.pushTriangle(0, idx, idx - 2);
-
-          // Outer circle
-          stream.pushTriangle(idx, idx + 1, idx - 1);
-          stream.pushTriangle(idx, idx - 1, idx - 2);
-        }
-      }
-
-      stream.pushTriangle(0, 1, idx);
-
-      stream.pushTriangle(1, 2, idx + 1);
-      stream.pushTriangle(1, idx + 1, idx);
-
-      stream.endGeometry();
-
-      var shadowPrimitive = stream.finishPrimitive(renderer);
-      this._shadowRenderPrimitive = renderer.createRenderPrimitive(shadowPrimitive, new DropShadowMaterial());
-      this.addRenderPrimitive(this._shadowRenderPrimitive);
-    }
-  }]);
-
-  return DropShadowNode;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/gltf2.js":
-/*!****************************!*\
-  !*** ./src/nodes/gltf2.js ***!
-  \****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Gltf2Node = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _gltf = __webpack_require__(/*! ../loaders/gltf2.js */ "./src/loaders/gltf2.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-// Using a weak map here allows us to cache a loader per-renderer without
-// modifying the renderer object or leaking memory when it's garbage collected.
-var gltfLoaderMap = new WeakMap();
-
-var Gltf2Node = exports.Gltf2Node = function (_Node) {
-  _inherits(Gltf2Node, _Node);
-
-  function Gltf2Node(options) {
-    _classCallCheck(this, Gltf2Node);
-
-    var _this = _possibleConstructorReturn(this, (Gltf2Node.__proto__ || Object.getPrototypeOf(Gltf2Node)).call(this));
-
-    _this._url = options.url;
-
-    _this._promise = null;
-    _this._resolver = null;
-    _this._rejecter = null;
-    return _this;
-  }
-
-  _createClass(Gltf2Node, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      var _this2 = this;
-
-      var loader = gltfLoaderMap.get(renderer);
-      if (!loader) {
-        loader = new _gltf.Gltf2Loader(renderer);
-        gltfLoaderMap.set(renderer, loader);
-      }
-
-      // Do we have a previously resolved promise? If so clear it.
-      if (!this._resolver && this._promise) {
-        this._promise = null;
-      }
-
-      this._ensurePromise();
-
-      loader.loadFromUrl(this._url).then(function (sceneNode) {
-        _this2.addNode(sceneNode);
-        _this2._resolver(sceneNode.waitForComplete());
-        _this2._resolver = null;
-        _this2._rejecter = null;
-      }).catch(function (err) {
-        _this2._rejecter(err);
-        _this2._resolver = null;
-        _this2._rejecter = null;
-      });
-    }
-  }, {
-    key: '_ensurePromise',
-    value: function _ensurePromise() {
-      var _this3 = this;
-
-      if (!this._promise) {
-        this._promise = new Promise(function (resolve, reject) {
-          _this3._resolver = resolve;
-          _this3._rejecter = reject;
-        });
-      }
-      return this._promise;
-    }
-  }, {
-    key: 'waitForComplete',
-    value: function waitForComplete() {
-      return this._ensurePromise();
-    }
-  }]);
-
-  return Gltf2Node;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/input-renderer.js":
-/*!*************************************!*\
-  !*** ./src/nodes/input-renderer.js ***!
-  \*************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.InputRenderer = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _texture = __webpack_require__(/*! ../core/texture.js */ "./src/core/texture.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var GL = WebGLRenderingContext; // For enums
-
-// Laser texture data, 48x1 RGBA (not premultiplied alpha). This represents a
-// "cross section" of the laser beam with a bright core and a feathered edge.
-// Borrowed from Chromium source code.
-var LASER_TEXTURE_DATA = new Uint8Array([0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0xff, 0x02, 0xbf, 0xbf, 0xbf, 0x04, 0xcc, 0xcc, 0xcc, 0x05, 0xdb, 0xdb, 0xdb, 0x07, 0xcc, 0xcc, 0xcc, 0x0a, 0xd8, 0xd8, 0xd8, 0x0d, 0xd2, 0xd2, 0xd2, 0x11, 0xce, 0xce, 0xce, 0x15, 0xce, 0xce, 0xce, 0x1a, 0xce, 0xce, 0xce, 0x1f, 0xcd, 0xcd, 0xcd, 0x24, 0xc8, 0xc8, 0xc8, 0x2a, 0xc9, 0xc9, 0xc9, 0x2f, 0xc9, 0xc9, 0xc9, 0x34, 0xc9, 0xc9, 0xc9, 0x39, 0xc9, 0xc9, 0xc9, 0x3d, 0xc8, 0xc8, 0xc8, 0x41, 0xcb, 0xcb, 0xcb, 0x44, 0xee, 0xee, 0xee, 0x87, 0xfa, 0xfa, 0xfa, 0xc8, 0xf9, 0xf9, 0xf9, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xfa, 0xfa, 0xfa, 0xc9, 0xfa, 0xfa, 0xfa, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xfa, 0xfa, 0xfa, 0xc8, 0xee, 0xee, 0xee, 0x87, 0xcb, 0xcb, 0xcb, 0x44, 0xc8, 0xc8, 0xc8, 0x41, 0xc9, 0xc9, 0xc9, 0x3d, 0xc9, 0xc9, 0xc9, 0x39, 0xc9, 0xc9, 0xc9, 0x34, 0xc9, 0xc9, 0xc9, 0x2f, 0xc8, 0xc8, 0xc8, 0x2a, 0xcd, 0xcd, 0xcd, 0x24, 0xce, 0xce, 0xce, 0x1f, 0xce, 0xce, 0xce, 0x1a, 0xce, 0xce, 0xce, 0x15, 0xd2, 0xd2, 0xd2, 0x11, 0xd8, 0xd8, 0xd8, 0x0d, 0xcc, 0xcc, 0xcc, 0x0a, 0xdb, 0xdb, 0xdb, 0x07, 0xcc, 0xcc, 0xcc, 0x05, 0xbf, 0xbf, 0xbf, 0x04, 0xff, 0xff, 0xff, 0x02, 0xff, 0xff, 0xff, 0x01]);
-
-var LASER_LENGTH = 1.0;
-var LASER_DIAMETER = 0.01;
-var LASER_FADE_END = 0.535;
-var LASER_FADE_POINT = 0.5335;
-var LASER_DEFAULT_COLOR = [1.0, 1.0, 1.0, 0.25];
-
-var CURSOR_RADIUS = 0.004;
-var CURSOR_SHADOW_RADIUS = 0.007;
-var CURSOR_SHADOW_INNER_LUMINANCE = 0.5;
-var CURSOR_SHADOW_OUTER_LUMINANCE = 0.0;
-var CURSOR_SHADOW_INNER_OPACITY = 0.75;
-var CURSOR_SHADOW_OUTER_OPACITY = 0.0;
-var CURSOR_OPACITY = 0.9;
-var CURSOR_SEGMENTS = 16;
-var CURSOR_DEFAULT_COLOR = [1.0, 1.0, 1.0, 1.0];
-var CURSOR_DEFAULT_HIDDEN_COLOR = [0.5, 0.5, 0.5, 0.25];
-
-var DEFAULT_RESET_OPTIONS = {
-  controllers: true,
-  lasers: true,
-  cursors: true
-};
-
-var LaserMaterial = function (_Material) {
-  _inherits(LaserMaterial, _Material);
-
-  function LaserMaterial() {
-    _classCallCheck(this, LaserMaterial);
-
-    var _this = _possibleConstructorReturn(this, (LaserMaterial.__proto__ || Object.getPrototypeOf(LaserMaterial)).call(this));
-
-    _this.renderOrder = _material.RENDER_ORDER.ADDITIVE;
-    _this.state.cullFace = false;
-    _this.state.blend = true;
-    _this.state.blendFuncSrc = GL.ONE;
-    _this.state.blendFuncDst = GL.ONE;
-    _this.state.depthMask = false;
-
-    _this.laser = _this.defineSampler('diffuse');
-    _this.laser.texture = new _texture.DataTexture(LASER_TEXTURE_DATA, 48, 1);
-    _this.laserColor = _this.defineUniform('laserColor', LASER_DEFAULT_COLOR);
-    return _this;
-  }
-
-  _createClass(LaserMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'INPUT_LASER';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    precision mediump float;\n\n    uniform vec4 laserColor;\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    const float fadePoint = ' + LASER_FADE_POINT + ';\n    const float fadeEnd = ' + LASER_FADE_END + ';\n\n    vec4 fragment_main() {\n      vec2 uv = vTexCoord;\n      float front_fade_factor = 1.0 - clamp(1.0 - (uv.y - fadePoint) / (1.0 - fadePoint), 0.0, 1.0);\n      float back_fade_factor = clamp((uv.y - fadePoint) / (fadeEnd - fadePoint), 0.0, 1.0);\n      vec4 color = laserColor * texture2D(diffuse, vTexCoord);\n      float opacity = color.a * front_fade_factor * back_fade_factor;\n      return vec4(color.rgb * opacity, opacity);\n    }';
-    }
-  }]);
-
-  return LaserMaterial;
-}(_material.Material);
-
-var CURSOR_VERTEX_SHADER = '\nattribute vec4 POSITION;\n\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vLuminance = POSITION.z;\n  vOpacity = POSITION.w;\n\n  // Billboarded, constant size vertex transform.\n  vec4 screenPos = proj * view * model * vec4(0.0, 0.0, 0.0, 1.0);\n  screenPos /= screenPos.w;\n  screenPos.xy += POSITION.xy;\n  return screenPos;\n}';
-
-var CURSOR_FRAGMENT_SHADER = '\nprecision mediump float;\n\nuniform vec4 cursorColor;\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 fragment_main() {\n  vec3 color = cursorColor.rgb * vLuminance;\n  float opacity = cursorColor.a * vOpacity;\n  return vec4(color * opacity, opacity);\n}';
-
-// Cursors are drawn as billboards that always face the camera and are rendered
-// as a fixed size no matter how far away they are.
-
-var CursorMaterial = function (_Material2) {
-  _inherits(CursorMaterial, _Material2);
-
-  function CursorMaterial() {
-    _classCallCheck(this, CursorMaterial);
-
-    var _this2 = _possibleConstructorReturn(this, (CursorMaterial.__proto__ || Object.getPrototypeOf(CursorMaterial)).call(this));
-
-    _this2.renderOrder = _material.RENDER_ORDER.ADDITIVE;
-    _this2.state.cullFace = false;
-    _this2.state.blend = true;
-    _this2.state.blendFuncSrc = GL.ONE;
-    _this2.state.depthMask = false;
-
-    _this2.cursorColor = _this2.defineUniform('cursorColor', CURSOR_DEFAULT_COLOR);
-    return _this2;
-  }
-
-  _createClass(CursorMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'INPUT_CURSOR';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return CURSOR_VERTEX_SHADER;
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return CURSOR_FRAGMENT_SHADER;
-    }
-  }]);
-
-  return CursorMaterial;
-}(_material.Material);
-
-var CursorHiddenMaterial = function (_Material3) {
-  _inherits(CursorHiddenMaterial, _Material3);
-
-  function CursorHiddenMaterial() {
-    _classCallCheck(this, CursorHiddenMaterial);
-
-    var _this3 = _possibleConstructorReturn(this, (CursorHiddenMaterial.__proto__ || Object.getPrototypeOf(CursorHiddenMaterial)).call(this));
-
-    _this3.renderOrder = _material.RENDER_ORDER.ADDITIVE;
-    _this3.state.cullFace = false;
-    _this3.state.blend = true;
-    _this3.state.blendFuncSrc = GL.ONE;
-    _this3.state.depthFunc = GL.GEQUAL;
-    _this3.state.depthMask = false;
-
-    _this3.cursorColor = _this3.defineUniform('cursorColor', CURSOR_DEFAULT_HIDDEN_COLOR);
-    return _this3;
-  }
-
-  // TODO: Rename to "program_name"
-
-
-  _createClass(CursorHiddenMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'INPUT_CURSOR_2';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return CURSOR_VERTEX_SHADER;
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return CURSOR_FRAGMENT_SHADER;
-    }
-  }]);
-
-  return CursorHiddenMaterial;
-}(_material.Material);
-
-var InputRenderer = exports.InputRenderer = function (_Node) {
-  _inherits(InputRenderer, _Node);
-
-  function InputRenderer() {
-    _classCallCheck(this, InputRenderer);
-
-    var _this4 = _possibleConstructorReturn(this, (InputRenderer.__proto__ || Object.getPrototypeOf(InputRenderer)).call(this));
-
-    _this4._maxInputElements = 32;
-
-    _this4._controllers = [];
-    _this4._controllerNode = null;
-    _this4._controllerNodeHandedness = null;
-    _this4._lasers = null;
-    _this4._cursors = null;
-
-    _this4._activeControllers = 0;
-    _this4._activeLasers = 0;
-    _this4._activeCursors = 0;
-    return _this4;
-  }
-
-  _createClass(InputRenderer, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      this._controllers = [];
-      this._controllerNode = null;
-      this._controllerNodeHandedness = null;
-      this._lasers = null;
-      this._cursors = null;
-
-      this._activeControllers = 0;
-      this._activeLasers = 0;
-      this._activeCursors = 0;
-    }
-  }, {
-    key: 'setControllerMesh',
-    value: function setControllerMesh(controllerNode) {
-      var handedness = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'right';
-
-      this._controllerNode = controllerNode;
-      this._controllerNode.visible = false;
-      // FIXME: Temporary fix to initialize for cloning.
-      this.addNode(this._controllerNode);
-      this._controllerNodeHandedness = handedness;
-    }
-  }, {
-    key: 'addController',
-    value: function addController(gripMatrix) {
-      if (!this._controllerNode) {
-        return;
-      }
-
-      var controller = null;
-      if (this._activeControllers < this._controllers.length) {
-        controller = this._controllers[this._activeControllers];
-      } else {
-        controller = this._controllerNode.clone();
-        this.addNode(controller);
-        this._controllers.push(controller);
-      }
-      this._activeControllers = (this._activeControllers + 1) % this._maxInputElements;
-
-      controller.matrix = gripMatrix;
-      controller.visible = true;
-    }
-  }, {
-    key: 'addLaserPointer',
-    value: function addLaserPointer(targetRay) {
-      // Create the laser pointer mesh if needed.
-      if (!this._lasers && this._renderer) {
-        this._lasers = [this._createLaserMesh()];
-        this.addNode(this._lasers[0]);
-      }
-
-      var laser = null;
-      if (this._activeLasers < this._lasers.length) {
-        laser = this._lasers[this._activeLasers];
-      } else {
-        laser = this._lasers[0].clone();
-        this.addNode(laser);
-        this._lasers.push(laser);
-      }
-      this._activeLasers = (this._activeLasers + 1) % this._maxInputElements;
-
-      laser.matrix = targetRay.transformMatrix;
-      laser.visible = true;
-    }
-  }, {
-    key: 'addCursor',
-    value: function addCursor(cursorPos) {
-      // Create the cursor mesh if needed.
-      if (!this._cursors && this._renderer) {
-        this._cursors = [this._createCursorMesh()];
-        this.addNode(this._cursors[0]);
-      }
-
-      var cursor = null;
-      if (this._activeCursors < this._cursors.length) {
-        cursor = this._cursors[this._activeCursors];
-      } else {
-        cursor = this._cursors[0].clone();
-        this.addNode(cursor);
-        this._cursors.push(cursor);
-      }
-      this._activeCursors = (this._activeCursors + 1) % this._maxInputElements;
-
-      cursor.translation = cursorPos;
-      cursor.visible = true;
-    }
-  }, {
-    key: 'reset',
-    value: function reset(options) {
-      if (!options) {
-        options = DEFAULT_RESET_OPTIONS;
-      }
-      if (this._controllers && options.controllers) {
-        var _iteratorNormalCompletion = true;
-        var _didIteratorError = false;
-        var _iteratorError = undefined;
-
-        try {
-          for (var _iterator = this._controllers[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-            var controller = _step.value;
-
-            controller.visible = false;
-          }
-        } catch (err) {
-          _didIteratorError = true;
-          _iteratorError = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion && _iterator.return) {
-              _iterator.return();
-            }
-          } finally {
-            if (_didIteratorError) {
-              throw _iteratorError;
-            }
-          }
-        }
-
-        this._activeControllers = 0;
-      }
-      if (this._lasers && options.lasers) {
-        var _iteratorNormalCompletion2 = true;
-        var _didIteratorError2 = false;
-        var _iteratorError2 = undefined;
-
-        try {
-          for (var _iterator2 = this._lasers[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-            var laser = _step2.value;
-
-            laser.visible = false;
-          }
-        } catch (err) {
-          _didIteratorError2 = true;
-          _iteratorError2 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion2 && _iterator2.return) {
-              _iterator2.return();
-            }
-          } finally {
-            if (_didIteratorError2) {
-              throw _iteratorError2;
-            }
-          }
-        }
-
-        this._activeLasers = 0;
-      }
-      if (this._cursors && options.cursors) {
-        var _iteratorNormalCompletion3 = true;
-        var _didIteratorError3 = false;
-        var _iteratorError3 = undefined;
-
-        try {
-          for (var _iterator3 = this._cursors[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-            var cursor = _step3.value;
-
-            cursor.visible = false;
-          }
-        } catch (err) {
-          _didIteratorError3 = true;
-          _iteratorError3 = err;
-        } finally {
-          try {
-            if (!_iteratorNormalCompletion3 && _iterator3.return) {
-              _iterator3.return();
-            }
-          } finally {
-            if (_didIteratorError3) {
-              throw _iteratorError3;
-            }
-          }
-        }
-
-        this._activeCursors = 0;
-      }
-    }
-  }, {
-    key: '_createLaserMesh',
-    value: function _createLaserMesh() {
-      var gl = this._renderer._gl;
-
-      var lr = LASER_DIAMETER * 0.5;
-      var ll = LASER_LENGTH;
-
-      // Laser is rendered as cross-shaped beam
-      var laserVerts = [
-      // X    Y   Z    U    V
-      0.0, lr, 0.0, 0.0, 1.0, 0.0, lr, -ll, 0.0, 0.0, 0.0, -lr, 0.0, 1.0, 1.0, 0.0, -lr, -ll, 1.0, 0.0, lr, 0.0, 0.0, 0.0, 1.0, lr, 0.0, -ll, 0.0, 0.0, -lr, 0.0, 0.0, 1.0, 1.0, -lr, 0.0, -ll, 1.0, 0.0, 0.0, -lr, 0.0, 0.0, 1.0, 0.0, -lr, -ll, 0.0, 0.0, 0.0, lr, 0.0, 1.0, 1.0, 0.0, lr, -ll, 1.0, 0.0, -lr, 0.0, 0.0, 0.0, 1.0, -lr, 0.0, -ll, 0.0, 0.0, lr, 0.0, 0.0, 1.0, 1.0, lr, 0.0, -ll, 1.0, 0.0];
-      var laserIndices = [0, 1, 2, 1, 3, 2, 4, 5, 6, 5, 7, 6, 8, 9, 10, 9, 11, 10, 12, 13, 14, 13, 15, 14];
-
-      var laserVertexBuffer = this._renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(laserVerts));
-      var laserIndexBuffer = this._renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(laserIndices));
-
-      var laserIndexCount = laserIndices.length;
-
-      var laserAttribs = [new _primitive.PrimitiveAttribute('POSITION', laserVertexBuffer, 3, gl.FLOAT, 20, 0), new _primitive.PrimitiveAttribute('TEXCOORD_0', laserVertexBuffer, 2, gl.FLOAT, 20, 12)];
-
-      var laserPrimitive = new _primitive.Primitive(laserAttribs, laserIndexCount);
-      laserPrimitive.setIndexBuffer(laserIndexBuffer);
-
-      var laserMaterial = new LaserMaterial();
-
-      var laserRenderPrimitive = this._renderer.createRenderPrimitive(laserPrimitive, laserMaterial);
-      var meshNode = new _node.Node();
-      meshNode.addRenderPrimitive(laserRenderPrimitive);
-      return meshNode;
-    }
-  }, {
-    key: '_createCursorMesh',
-    value: function _createCursorMesh() {
-      var gl = this._renderer._gl;
-
-      // Cursor is a circular white dot with a dark "shadow" skirt around the edge
-      // that fades from black to transparent as it moves out from the center.
-      // Cursor verts are packed as [X, Y, Luminance, Opacity]
-      var cursorVerts = [];
-      var cursorIndices = [];
-
-      var segRad = 2.0 * Math.PI / CURSOR_SEGMENTS;
-
-      // Cursor center
-      for (var i = 0; i < CURSOR_SEGMENTS; ++i) {
-        var rad = i * segRad;
-        var x = Math.cos(rad);
-        var y = Math.sin(rad);
-        cursorVerts.push(x * CURSOR_RADIUS, y * CURSOR_RADIUS, 1.0, CURSOR_OPACITY);
-
-        if (i > 1) {
-          cursorIndices.push(0, i - 1, i);
-        }
-      }
-
-      var indexOffset = CURSOR_SEGMENTS;
-
-      // Cursor Skirt
-      for (var _i = 0; _i < CURSOR_SEGMENTS; ++_i) {
-        var _rad = _i * segRad;
-        var _x2 = Math.cos(_rad);
-        var _y = Math.sin(_rad);
-        cursorVerts.push(_x2 * CURSOR_RADIUS, _y * CURSOR_RADIUS, CURSOR_SHADOW_INNER_LUMINANCE, CURSOR_SHADOW_INNER_OPACITY);
-        cursorVerts.push(_x2 * CURSOR_SHADOW_RADIUS, _y * CURSOR_SHADOW_RADIUS, CURSOR_SHADOW_OUTER_LUMINANCE, CURSOR_SHADOW_OUTER_OPACITY);
-
-        if (_i > 0) {
-          var _idx = indexOffset + _i * 2;
-          cursorIndices.push(_idx - 2, _idx - 1, _idx);
-          cursorIndices.push(_idx - 1, _idx + 1, _idx);
-        }
-      }
-
-      var idx = indexOffset + CURSOR_SEGMENTS * 2;
-      cursorIndices.push(idx - 2, idx - 1, indexOffset);
-      cursorIndices.push(idx - 1, indexOffset + 1, indexOffset);
-
-      var cursorVertexBuffer = this._renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(cursorVerts));
-      var cursorIndexBuffer = this._renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(cursorIndices));
-
-      var cursorIndexCount = cursorIndices.length;
-
-      var cursorAttribs = [new _primitive.PrimitiveAttribute('POSITION', cursorVertexBuffer, 4, gl.FLOAT, 16, 0)];
-
-      var cursorPrimitive = new _primitive.Primitive(cursorAttribs, cursorIndexCount);
-      cursorPrimitive.setIndexBuffer(cursorIndexBuffer);
-
-      var cursorMaterial = new CursorMaterial();
-      var cursorHiddenMaterial = new CursorHiddenMaterial();
-
-      // Cursor renders two parts: The bright opaque cursor for areas where it's
-      // not obscured and a more transparent, darker version for areas where it's
-      // behind another object.
-      var cursorRenderPrimitive = this._renderer.createRenderPrimitive(cursorPrimitive, cursorMaterial);
-      var cursorHiddenRenderPrimitive = this._renderer.createRenderPrimitive(cursorPrimitive, cursorHiddenMaterial);
-      var meshNode = new _node.Node();
-      meshNode.addRenderPrimitive(cursorRenderPrimitive);
-      meshNode.addRenderPrimitive(cursorHiddenRenderPrimitive);
-      return meshNode;
-    }
-  }]);
-
-  return InputRenderer;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/seven-segment-text.js":
-/*!*****************************************!*\
-  !*** ./src/nodes/seven-segment-text.js ***!
-  \*****************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.SevenSegmentText = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-Renders simple text using a seven-segment LED style pattern. Only really good
-for numbers and a limited number of other characters.
-*/
-
-var TEXT_KERNING = 2.0;
-
-var SevenSegmentMaterial = function (_Material) {
-  _inherits(SevenSegmentMaterial, _Material);
-
-  function SevenSegmentMaterial() {
-    _classCallCheck(this, SevenSegmentMaterial);
-
-    return _possibleConstructorReturn(this, (SevenSegmentMaterial.__proto__ || Object.getPrototypeOf(SevenSegmentMaterial)).apply(this, arguments));
-  }
-
-  _createClass(SevenSegmentMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'SEVEN_SEGMENT_TEXT';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 0.0, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    precision mediump float;\n    const vec4 color = vec4(0.0, 1.0, 0.0, 1.0);\n\n    vec4 fragment_main() {\n      return color;\n    }';
-    }
-  }]);
-
-  return SevenSegmentMaterial;
-}(_material.Material);
-
-var SevenSegmentText = exports.SevenSegmentText = function (_Node) {
-  _inherits(SevenSegmentText, _Node);
-
-  function SevenSegmentText() {
-    _classCallCheck(this, SevenSegmentText);
-
-    var _this2 = _possibleConstructorReturn(this, (SevenSegmentText.__proto__ || Object.getPrototypeOf(SevenSegmentText)).call(this));
-
-    _this2._text = '';
-    _this2._charNodes = [];
-    return _this2;
-  }
-
-  _createClass(SevenSegmentText, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      this.clearNodes();
-      this._charNodes = [];
-
-      var vertices = [];
-      var segmentIndices = {};
-      var indices = [];
-
-      var width = 0.5;
-      var thickness = 0.25;
-
-      function defineSegment(id, left, top, right, bottom) {
-        var idx = vertices.length / 2;
-        vertices.push(left, top, right, top, right, bottom, left, bottom);
-
-        segmentIndices[id] = [idx, idx + 2, idx + 1, idx, idx + 3, idx + 2];
-      }
-
-      var characters = {};
-      function defineCharacter(c, segments) {
-        var character = {
-          character: c,
-          offset: indices.length * 2,
-          count: 0
-        };
-
-        for (var i = 0; i < segments.length; ++i) {
-          var idx = segments[i];
-          var segment = segmentIndices[idx];
-          character.count += segment.length;
-          indices.push.apply(indices, _toConsumableArray(segment));
-        }
-
-        characters[c] = character;
-      }
-
-      /* Segment layout is as follows:
-       |-0-|
-      3   4
-      |-1-|
-      5   6
-      |-2-|
-       */
-
-      defineSegment(0, -1, 1, width, 1 - thickness);
-      defineSegment(1, -1, thickness * 0.5, width, -thickness * 0.5);
-      defineSegment(2, -1, -1 + thickness, width, -1);
-      defineSegment(3, -1, 1, -1 + thickness, -thickness * 0.5);
-      defineSegment(4, width - thickness, 1, width, -thickness * 0.5);
-      defineSegment(5, -1, thickness * 0.5, -1 + thickness, -1);
-      defineSegment(6, width - thickness, thickness * 0.5, width, -1);
-
-      defineCharacter('0', [0, 2, 3, 4, 5, 6]);
-      defineCharacter('1', [4, 6]);
-      defineCharacter('2', [0, 1, 2, 4, 5]);
-      defineCharacter('3', [0, 1, 2, 4, 6]);
-      defineCharacter('4', [1, 3, 4, 6]);
-      defineCharacter('5', [0, 1, 2, 3, 6]);
-      defineCharacter('6', [0, 1, 2, 3, 5, 6]);
-      defineCharacter('7', [0, 4, 6]);
-      defineCharacter('8', [0, 1, 2, 3, 4, 5, 6]);
-      defineCharacter('9', [0, 1, 2, 3, 4, 6]);
-      defineCharacter('A', [0, 1, 3, 4, 5, 6]);
-      defineCharacter('B', [1, 2, 3, 5, 6]);
-      defineCharacter('C', [0, 2, 3, 5]);
-      defineCharacter('D', [1, 2, 4, 5, 6]);
-      defineCharacter('E', [0, 1, 2, 4, 6]);
-      defineCharacter('F', [0, 1, 3, 5]);
-      defineCharacter('P', [0, 1, 3, 4, 5]);
-      defineCharacter('-', [1]);
-      defineCharacter(' ', []);
-      defineCharacter('_', [2]); // Used for undefined characters
-
-      var gl = renderer.gl;
-      var vertexBuffer = renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(vertices));
-      var indexBuffer = renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));
-
-      var vertexAttribs = [new _primitive.PrimitiveAttribute('POSITION', vertexBuffer, 2, gl.FLOAT, 8, 0)];
-
-      var primitive = new _primitive.Primitive(vertexAttribs, indices.length);
-      primitive.setIndexBuffer(indexBuffer);
-
-      var material = new SevenSegmentMaterial();
-
-      this._charPrimitives = {};
-      for (var char in characters) {
-        var charDef = characters[char];
-        primitive.elementCount = charDef.count;
-        primitive.indexByteOffset = charDef.offset;
-        this._charPrimitives[char] = renderer.createRenderPrimitive(primitive, material);
-      }
-
-      this.text = this._text;
-    }
-  }, {
-    key: 'text',
-    get: function get() {
-      return this._text;
-    },
-    set: function set(value) {
-      this._text = value;
-
-      var i = 0;
-      var charPrimitive = null;
-      for (; i < value.length; ++i) {
-        if (value[i] in this._charPrimitives) {
-          charPrimitive = this._charPrimitives[value[i]];
-        } else {
-          charPrimitive = this._charPrimitives['_'];
-        }
-
-        if (this._charNodes.length <= i) {
-          var node = new _node.Node();
-          node.addRenderPrimitive(charPrimitive);
-          var offset = i * TEXT_KERNING;
-          node.translation = [offset, 0, 0];
-          this._charNodes.push(node);
-          this.addNode(node);
-        } else {
-          // This is sort of an abuse of how these things are expected to work,
-          // but it's the cheapest thing I could think of that didn't break the
-          // world.
-          this._charNodes[i].clearRenderPrimitives();
-          this._charNodes[i].addRenderPrimitive(charPrimitive);
-          this._charNodes[i].visible = true;
-        }
-      }
-
-      // If there's any nodes left over make them invisible
-      for (; i < this._charNodes.length; ++i) {
-        this._charNodes[i].visible = false;
-      }
-    }
-  }]);
-
-  return SevenSegmentText;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/skybox.js":
-/*!*****************************!*\
-  !*** ./src/nodes/skybox.js ***!
-  \*****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.SkyboxNode = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _texture = __webpack_require__(/*! ../core/texture.js */ "./src/core/texture.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-Node for displaying 360 equirect images as a skybox.
-*/
-
-var GL = WebGLRenderingContext; // For enums
-
-var SkyboxMaterial = function (_Material) {
-  _inherits(SkyboxMaterial, _Material);
-
-  function SkyboxMaterial() {
-    _classCallCheck(this, SkyboxMaterial);
-
-    var _this = _possibleConstructorReturn(this, (SkyboxMaterial.__proto__ || Object.getPrototypeOf(SkyboxMaterial)).call(this));
-
-    _this.renderOrder = _material.RENDER_ORDER.SKY;
-    _this.state.depthFunc = GL.LEQUAL;
-    _this.state.depthMask = false;
-
-    _this.image = _this.defineSampler('diffuse');
-
-    _this.texCoordScaleOffset = _this.defineUniform('texCoordScaleOffset', [1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0], 4);
-    return _this;
-  }
-
-  _createClass(SkyboxMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'SKYBOX';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      // Drop the translation portion of the view matrix\n      view[3].xyz = vec3(0.0, 0.0, 0.0);\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n\n      // Returning the W component for both Z and W forces the geometry depth to\n      // the far plane. When combined with a depth func of LEQUAL this makes the\n      // sky write to any depth fragment that has not been written to yet.\n      return out_vec.xyww;\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }';
-    }
-  }]);
-
-  return SkyboxMaterial;
-}(_material.Material);
-
-var SkyboxNode = exports.SkyboxNode = function (_Node) {
-  _inherits(SkyboxNode, _Node);
-
-  function SkyboxNode(options) {
-    _classCallCheck(this, SkyboxNode);
-
-    var _this2 = _possibleConstructorReturn(this, (SkyboxNode.__proto__ || Object.getPrototypeOf(SkyboxNode)).call(this));
-
-    _this2._url = options.url;
-    _this2._displayMode = options.displayMode || 'mono';
-    _this2._rotationY = options.rotationY || 0;
-    return _this2;
-  }
-
-  _createClass(SkyboxNode, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      var vertices = [];
-      var indices = [];
-
-      var latSegments = 40;
-      var lonSegments = 40;
-
-      // Create the vertices/indices
-      for (var i = 0; i <= latSegments; ++i) {
-        var theta = i * Math.PI / latSegments;
-        var sinTheta = Math.sin(theta);
-        var cosTheta = Math.cos(theta);
-
-        var idxOffsetA = i * (lonSegments + 1);
-        var idxOffsetB = (i + 1) * (lonSegments + 1);
-
-        for (var j = 0; j <= lonSegments; ++j) {
-          var phi = j * 2 * Math.PI / lonSegments + this._rotationY;
-          var x = Math.sin(phi) * sinTheta;
-          var y = cosTheta;
-          var z = -Math.cos(phi) * sinTheta;
-          var u = j / lonSegments;
-          var v = i / latSegments;
-
-          // Vertex shader will force the geometry to the far plane, so the
-          // radius of the sphere is immaterial.
-          vertices.push(x, y, z, u, v);
-
-          if (i < latSegments && j < lonSegments) {
-            var idxA = idxOffsetA + j;
-            var idxB = idxOffsetB + j;
-
-            indices.push(idxA, idxB, idxA + 1, idxB, idxB + 1, idxA + 1);
-          }
-        }
-      }
-
-      var vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(vertices));
-      var indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));
-
-      var attribs = [new _primitive.PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 20, 0), new _primitive.PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 20, 12)];
-
-      var primitive = new _primitive.Primitive(attribs, indices.length);
-      primitive.setIndexBuffer(indexBuffer);
-
-      var material = new SkyboxMaterial();
-      material.image.texture = new _texture.UrlTexture(this._url);
-
-      switch (this._displayMode) {
-        case 'mono':
-          material.texCoordScaleOffset.value = [1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0];
-          break;
-        case 'stereoTopBottom':
-          material.texCoordScaleOffset.value = [1.0, 0.5, 0.0, 0.0, 1.0, 0.5, 0.0, 0.5];
-          break;
-        case 'stereoLeftRight':
-          material.texCoordScaleOffset.value = [0.5, 1.0, 0.0, 0.0, 0.5, 1.0, 0.5, 0.0];
-          break;
-      }
-
-      var renderPrimitive = renderer.createRenderPrimitive(primitive, material);
-      this.addRenderPrimitive(renderPrimitive);
-    }
-  }]);
-
-  return SkyboxNode;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/stats-viewer.js":
-/*!***********************************!*\
-  !*** ./src/nodes/stats-viewer.js ***!
-  \***********************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.StatsViewer = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _sevenSegmentText = __webpack_require__(/*! ./seven-segment-text.js */ "./src/nodes/seven-segment-text.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-Heavily inspired by Mr. Doobs stats.js, this FPS counter is rendered completely
-with WebGL, allowing it to be shown in cases where overlaid HTML elements aren't
-usable (like WebXR), or if you want the FPS counter to be rendered as part of
-your scene.
-*/
-
-var SEGMENTS = 30;
-var MAX_FPS = 90;
-
-var StatsMaterial = function (_Material) {
-  _inherits(StatsMaterial, _Material);
-
-  function StatsMaterial() {
-    _classCallCheck(this, StatsMaterial);
-
-    return _possibleConstructorReturn(this, (StatsMaterial.__proto__ || Object.getPrototypeOf(StatsMaterial)).apply(this, arguments));
-  }
-
-  _createClass(StatsMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'STATS_VIEWER';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    attribute vec3 POSITION;\n    attribute vec3 COLOR_0;\n    varying vec4 vColor;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vColor = vec4(COLOR_0, 1.0);\n      return proj * view * model * vec4(POSITION, 1.0);\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    precision mediump float;\n    varying vec4 vColor;\n\n    vec4 fragment_main() {\n      return vColor;\n    }';
-    }
-  }]);
-
-  return StatsMaterial;
-}(_material.Material);
-
-function segmentToX(i) {
-  return 0.9 / SEGMENTS * i - 0.45;
-}
-
-function fpsToY(value) {
-  return Math.min(value, MAX_FPS) * (0.7 / MAX_FPS) - 0.45;
-}
-
-function fpsToRGB(value) {
-  return {
-    r: Math.max(0.0, Math.min(1.0, 1.0 - value / 60)),
-    g: Math.max(0.0, Math.min(1.0, (value - 15) / (MAX_FPS - 15))),
-    b: Math.max(0.0, Math.min(1.0, (value - 15) / (MAX_FPS - 15)))
-  };
-}
-
-var now = window.performance && performance.now ? performance.now.bind(performance) : Date.now;
-
-var StatsViewer = exports.StatsViewer = function (_Node) {
-  _inherits(StatsViewer, _Node);
-
-  function StatsViewer() {
-    _classCallCheck(this, StatsViewer);
-
-    var _this2 = _possibleConstructorReturn(this, (StatsViewer.__proto__ || Object.getPrototypeOf(StatsViewer)).call(this));
-
-    _this2._performanceMonitoring = false;
-
-    _this2._startTime = now();
-    _this2._prevFrameTime = _this2._startTime;
-    _this2._prevGraphUpdateTime = _this2._startTime;
-    _this2._frames = 0;
-    _this2._fpsAverage = 0;
-    _this2._fpsMin = 0;
-    _this2._fpsStep = _this2._performanceMonitoring ? 1000 : 250;
-    _this2._lastSegment = 0;
-
-    _this2._fpsVertexBuffer = null;
-    _this2._fpsRenderPrimitive = null;
-    _this2._fpsNode = null;
-
-    _this2._sevenSegmentNode = new _sevenSegmentText.SevenSegmentText();
-    // Hard coded because it doesn't change:
-    // Scale by 0.075 in X and Y
-    // Translate into upper left corner w/ z = 0.02
-    _this2._sevenSegmentNode.matrix = new Float32Array([0.075, 0, 0, 0, 0, 0.075, 0, 0, 0, 0, 1, 0, -0.3625, 0.3625, 0.02, 1]);
-    return _this2;
-  }
-
-  _createClass(StatsViewer, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      this.clearNodes();
-
-      var gl = renderer.gl;
-
-      var fpsVerts = [];
-      var fpsIndices = [];
-
-      // Graph geometry
-      for (var i = 0; i < SEGMENTS; ++i) {
-        // Bar top
-        fpsVerts.push(segmentToX(i), fpsToY(0), 0.02, 0.0, 1.0, 1.0);
-        fpsVerts.push(segmentToX(i + 1), fpsToY(0), 0.02, 0.0, 1.0, 1.0);
-
-        // Bar bottom
-        fpsVerts.push(segmentToX(i), fpsToY(0), 0.02, 0.0, 1.0, 1.0);
-        fpsVerts.push(segmentToX(i + 1), fpsToY(0), 0.02, 0.0, 1.0, 1.0);
-
-        var idx = i * 4;
-        fpsIndices.push(idx, idx + 3, idx + 1, idx + 3, idx, idx + 2);
-      }
-
-      function addBGSquare(left, bottom, right, top, z, r, g, b) {
-        var idx = fpsVerts.length / 6;
-
-        fpsVerts.push(left, bottom, z, r, g, b);
-        fpsVerts.push(right, top, z, r, g, b);
-        fpsVerts.push(left, top, z, r, g, b);
-        fpsVerts.push(right, bottom, z, r, g, b);
-
-        fpsIndices.push(idx, idx + 1, idx + 2, idx, idx + 3, idx + 1);
-      }
-
-      // Panel Background
-      addBGSquare(-0.5, -0.5, 0.5, 0.5, 0.0, 0.0, 0.0, 0.125);
-
-      // FPS Background
-      addBGSquare(-0.45, -0.45, 0.45, 0.25, 0.01, 0.0, 0.0, 0.4);
-
-      // 30 FPS line
-      addBGSquare(-0.45, fpsToY(30), 0.45, fpsToY(32), 0.015, 0.5, 0.0, 0.5);
-
-      // 60 FPS line
-      addBGSquare(-0.45, fpsToY(60), 0.45, fpsToY(62), 0.015, 0.2, 0.0, 0.75);
-
-      this._fpsVertexBuffer = renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(fpsVerts), gl.DYNAMIC_DRAW);
-      var fpsIndexBuffer = renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(fpsIndices));
-
-      var fpsAttribs = [new _primitive.PrimitiveAttribute('POSITION', this._fpsVertexBuffer, 3, gl.FLOAT, 24, 0), new _primitive.PrimitiveAttribute('COLOR_0', this._fpsVertexBuffer, 3, gl.FLOAT, 24, 12)];
-
-      var fpsPrimitive = new _primitive.Primitive(fpsAttribs, fpsIndices.length);
-      fpsPrimitive.setIndexBuffer(fpsIndexBuffer);
-      fpsPrimitive.setBounds([-0.5, -0.5, 0.0], [0.5, 0.5, 0.015]);
-
-      this._fpsRenderPrimitive = renderer.createRenderPrimitive(fpsPrimitive, new StatsMaterial());
-      this._fpsNode = new _node.Node();
-      this._fpsNode.addRenderPrimitive(this._fpsRenderPrimitive);
-
-      this.addNode(this._fpsNode);
-      this.addNode(this._sevenSegmentNode);
-    }
-  }, {
-    key: 'begin',
-    value: function begin() {
-      this._startTime = now();
-    }
-  }, {
-    key: 'end',
-    value: function end() {
-      var time = now();
-
-      var frameFps = 1000 / (time - this._prevFrameTime);
-      this._prevFrameTime = time;
-      this._fpsMin = this._frames ? Math.min(this._fpsMin, frameFps) : frameFps;
-      this._frames++;
-
-      if (time > this._prevGraphUpdateTime + this._fpsStep) {
-        var intervalTime = time - this._prevGraphUpdateTime;
-        this._fpsAverage = Math.round(1000 / (intervalTime / this._frames));
-
-        // Draw both average and minimum FPS for this period
-        // so that dropped frames are more clearly visible.
-        this._updateGraph(this._fpsMin, this._fpsAverage);
-        if (this._performanceMonitoring) {
-          console.log('Average FPS: ' + this._fpsAverage + ' Min FPS: ' + this._fpsMin);
-        }
-
-        this._prevGraphUpdateTime = time;
-        this._frames = 0;
-        this._fpsMin = 0;
-      }
-    }
-  }, {
-    key: '_updateGraph',
-    value: function _updateGraph(valueLow, valueHigh) {
-      var color = fpsToRGB(valueLow);
-      // Draw a range from the low to high value. Artificially widen the
-      // range a bit to ensure that near-equal values still remain
-      // visible - the logic here should match that used by the
-      // "60 FPS line" setup below. Hitting 60fps consistently will
-      // keep the top half of the 60fps background line visible.
-      var y0 = fpsToY(valueLow - 1);
-      var y1 = fpsToY(valueHigh + 1);
-
-      // Update the current segment with the new FPS value
-      var updateVerts = [segmentToX(this._lastSegment), y1, 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment + 1), y1, 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment), y0, 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment + 1), y0, 0.02, color.r, color.g, color.b];
-
-      // Re-shape the next segment into the green "progress" line
-      color.r = 0.2;
-      color.g = 1.0;
-      color.b = 0.2;
-
-      if (this._lastSegment == SEGMENTS - 1) {
-        // If we're updating the last segment we need to do two bufferSubDatas
-        // to update the segment and turn the first segment into the progress line.
-        this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts), this._lastSegment * 24 * 4);
-        updateVerts = [segmentToX(0), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b, segmentToX(.25), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b, segmentToX(0), fpsToY(0), 0.02, color.r, color.g, color.b, segmentToX(.25), fpsToY(0), 0.02, color.r, color.g, color.b];
-        this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts), 0);
-      } else {
-        updateVerts.push(segmentToX(this._lastSegment + 1), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment + 1.25), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment + 1), fpsToY(0), 0.02, color.r, color.g, color.b, segmentToX(this._lastSegment + 1.25), fpsToY(0), 0.02, color.r, color.g, color.b);
-        this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts), this._lastSegment * 24 * 4);
-      }
-
-      this._lastSegment = (this._lastSegment + 1) % SEGMENTS;
-
-      this._sevenSegmentNode.text = this._fpsAverage + ' FP5';
-    }
-  }, {
-    key: 'performanceMonitoring',
-    get: function get() {
-      return this._performanceMonitoring;
-    },
-    set: function set(value) {
-      this._performanceMonitoring = value;
-      this._fpsStep = value ? 1000 : 250;
-    }
-  }]);
-
-  return StatsViewer;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/nodes/video.js":
-/*!****************************!*\
-  !*** ./src/nodes/video.js ***!
-  \****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.VideoNode = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _material = __webpack_require__(/*! ../core/material.js */ "./src/core/material.js");
-
-var _primitive = __webpack_require__(/*! ../core/primitive.js */ "./src/core/primitive.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _texture = __webpack_require__(/*! ../core/texture.js */ "./src/core/texture.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-Node for displaying 2D or stereo videos on a quad.
-*/
-
-var GL = WebGLRenderingContext; // For enums
-
-var VideoMaterial = function (_Material) {
-  _inherits(VideoMaterial, _Material);
-
-  function VideoMaterial() {
-    _classCallCheck(this, VideoMaterial);
-
-    var _this = _possibleConstructorReturn(this, (VideoMaterial.__proto__ || Object.getPrototypeOf(VideoMaterial)).call(this));
-
-    _this.image = _this.defineSampler('diffuse');
-
-    _this.texCoordScaleOffset = _this.defineUniform('texCoordScaleOffset', [1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0], 4);
-    return _this;
-  }
-
-  _createClass(VideoMaterial, [{
-    key: 'materialName',
-    get: function get() {
-      return 'VIDEO_PLAYER';
-    }
-  }, {
-    key: 'vertexSource',
-    get: function get() {
-      return '\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n      return out_vec;\n    }';
-    }
-  }, {
-    key: 'fragmentSource',
-    get: function get() {
-      return '\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }';
-    }
-  }]);
-
-  return VideoMaterial;
-}(_material.Material);
-
-var VideoNode = exports.VideoNode = function (_Node) {
-  _inherits(VideoNode, _Node);
-
-  function VideoNode(options) {
-    _classCallCheck(this, VideoNode);
-
-    var _this2 = _possibleConstructorReturn(this, (VideoNode.__proto__ || Object.getPrototypeOf(VideoNode)).call(this));
-
-    _this2._video = options.video;
-    _this2._displayMode = options.displayMode || 'mono';
-
-    _this2._video_texture = new _texture.VideoTexture(_this2._video);
-    return _this2;
-  }
-
-  _createClass(VideoNode, [{
-    key: 'onRendererChanged',
-    value: function onRendererChanged(renderer) {
-      var vertices = [-1.0, 1.0, 0.0, 0.0, 0.0, 1.0, 1.0, 0.0, 1.0, 0.0, 1.0, -1.0, 0.0, 1.0, 1.0, -1.0, -1.0, 0.0, 0.0, 1.0];
-      var indices = [0, 2, 1, 0, 3, 2];
-
-      var vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(vertices));
-      var indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));
-
-      var attribs = [new _primitive.PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 20, 0), new _primitive.PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 20, 12)];
-
-      var primitive = new _primitive.Primitive(attribs, indices.length);
-      primitive.setIndexBuffer(indexBuffer);
-      primitive.setBounds([-1.0, -1.0, 0.0], [1.0, 1.0, 0.015]);
-
-      var material = new VideoMaterial();
-      material.image.texture = this._video_texture;
-
-      switch (this._displayMode) {
-        case 'mono':
-          material.texCoordScaleOffset.value = [1.0, 1.0, 0.0, 0.0, 1.0, 1.0, 0.0, 0.0];
-          break;
-        case 'stereoTopBottom':
-          material.texCoordScaleOffset.value = [1.0, 0.5, 0.0, 0.0, 1.0, 0.5, 0.0, 0.5];
-          break;
-        case 'stereoLeftRight':
-          material.texCoordScaleOffset.value = [0.5, 1.0, 0.0, 0.0, 0.5, 1.0, 0.5, 0.0];
-          break;
-      }
-
-      var renderPrimitive = renderer.createRenderPrimitive(primitive, material);
-      this.addRenderPrimitive(renderPrimitive);
-    }
-  }, {
-    key: 'aspectRatio',
-    get: function get() {
-      var width = this._video.videoWidth;
-      var height = this._video.videoHeight;
-
-      switch (this._displayMode) {
-        case 'stereoTopBottom':
-          height *= 0.5;break;
-        case 'stereoLeftRight':
-          width *= 0.5;break;
-      }
-
-      if (!height || !width) {
-        return 1;
-      }
-
-      return width / height;
-    }
-  }]);
-
-  return VideoNode;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/scenes/scene.js":
-/*!*****************************!*\
-  !*** ./src/scenes/scene.js ***!
-  \*****************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.Scene = exports.WebXRView = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-var _renderer = __webpack_require__(/*! ../core/renderer.js */ "./src/core/renderer.js");
-
-var _inputRenderer = __webpack_require__(/*! ../nodes/input-renderer.js */ "./src/nodes/input-renderer.js");
-
-var _statsViewer = __webpack_require__(/*! ../nodes/stats-viewer.js */ "./src/nodes/stats-viewer.js");
-
-var _node = __webpack_require__(/*! ../core/node.js */ "./src/core/node.js");
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; } // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var WebXRView = exports.WebXRView = function (_RenderView) {
-  _inherits(WebXRView, _RenderView);
-
-  function WebXRView(view, pose, layer) {
-    _classCallCheck(this, WebXRView);
-
-    return _possibleConstructorReturn(this, (WebXRView.__proto__ || Object.getPrototypeOf(WebXRView)).call(this, view ? view.projectionMatrix : null, pose && view ? view.viewMatrix : null, layer && view ? layer.getViewport(view) : null, view ? view.eye : 'left'));
-  }
-
-  return WebXRView;
-}(_renderer.RenderView);
-
-var Scene = exports.Scene = function (_Node) {
-  _inherits(Scene, _Node);
-
-  function Scene() {
-    _classCallCheck(this, Scene);
-
-    var _this2 = _possibleConstructorReturn(this, (Scene.__proto__ || Object.getPrototypeOf(Scene)).call(this));
-
-    _this2._timestamp = -1;
-    _this2._frameDelta = 0;
-    _this2._statsStanding = false;
-    _this2._stats = null;
-    _this2._statsEnabled = false;
-    _this2.enableStats(true); // Ensure the stats are added correctly by default.
-
-    _this2._inputRenderer = null;
-    _this2._resetInputEndFrame = true;
-
-    _this2._lastTimestamp = 0;
-
-    _this2._hoverFrame = 0;
-    _this2._hoveredNodes = [];
-
-    _this2.clear = true;
-    return _this2;
-  }
-
-  _createClass(Scene, [{
-    key: 'setRenderer',
-    value: function setRenderer(renderer) {
-      this._setRenderer(renderer);
-    }
-  }, {
-    key: 'loseRenderer',
-    value: function loseRenderer() {
-      if (this._renderer) {
-        this._stats = null;
-        this._renderer = null;
-        this._inputRenderer = null;
-      }
-    }
-  }, {
-    key: 'updateInputSources',
-
-
-    // Helper function that automatically adds the appropriate visual elements for
-    // all input sources.
-    value: function updateInputSources(frame, refSpace) {
-      // FIXME: Check for the existence of the API first. This check should be
-      // removed once the input API is part of the official spec.
-      if (!frame.session.getInputSources) {
-        return;
-      }
-
-      var inputSources = frame.session.getInputSources();
-
-      var newHoveredNodes = [];
-      var lastHoverFrame = this._hoverFrame;
-      this._hoverFrame++;
-
-      var _iteratorNormalCompletion = true;
-      var _didIteratorError = false;
-      var _iteratorError = undefined;
-
-      try {
-        for (var _iterator = inputSources[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-          var inputSource = _step.value;
-
-          var inputPose = frame.getInputPose(inputSource, refSpace);
-
-          if (!inputPose) {
-            continue;
-          }
-
-          // Any time that we have a grip matrix, we'll render a controller.
-          if (inputPose.gripTransform.matrix) {
-            this.inputRenderer.addController(inputPose.gripTransform.matrix);
-          }
-
-          if (inputPose.targetRay) {
-            if (inputSource.targetRayMode == 'tracked-pointer') {
-              // If we have a pointer matrix and the pointer origin is the users
-              // hand (as opposed to their head or the screen) use it to render
-              // a ray coming out of the input device to indicate the pointer
-              // direction.
-              this.inputRenderer.addLaserPointer(inputPose.targetRay);
-            }
-
-            // If we have a pointer matrix we can also use it to render a cursor
-            // for both handheld and gaze-based input sources.
-
-            // Check and see if the pointer is pointing at any selectable objects.
-            var hitResult = this.hitTest(inputPose.targetRay);
-
-            if (hitResult) {
-              // Render a cursor at the intersection point.
-              this.inputRenderer.addCursor(hitResult.intersection);
-
-              if (hitResult.node._hoverFrameId != lastHoverFrame) {
-                hitResult.node.onHoverStart();
-              }
-              hitResult.node._hoverFrameId = this._hoverFrame;
-              newHoveredNodes.push(hitResult.node);
-            } else {
-              // Statically render the cursor 1 meters down the ray since we didn't
-              // hit anything selectable.
-              var cursorDistance = 1.0;
-              var cursorPos = _glMatrix.vec3.fromValues(inputPose.targetRay.origin.x, inputPose.targetRay.origin.y, inputPose.targetRay.origin.z);
-              _glMatrix.vec3.add(cursorPos, cursorPos, [inputPose.targetRay.direction.x * cursorDistance, inputPose.targetRay.direction.y * cursorDistance, inputPose.targetRay.direction.z * cursorDistance]);
-              // let cursorPos = vec3.fromValues(0, 0, -1.0);
-              // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay);
-              this.inputRenderer.addCursor(cursorPos);
-            }
-          }
-        }
-      } catch (err) {
-        _didIteratorError = true;
-        _iteratorError = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion && _iterator.return) {
-            _iterator.return();
-          }
-        } finally {
-          if (_didIteratorError) {
-            throw _iteratorError;
-          }
-        }
-      }
-
-      var _iteratorNormalCompletion2 = true;
-      var _didIteratorError2 = false;
-      var _iteratorError2 = undefined;
-
-      try {
-        for (var _iterator2 = this._hoveredNodes[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
-          var hoverNode = _step2.value;
-
-          if (hoverNode._hoverFrameId != this._hoverFrame) {
-            hoverNode.onHoverEnd();
-          }
-        }
-      } catch (err) {
-        _didIteratorError2 = true;
-        _iteratorError2 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion2 && _iterator2.return) {
-            _iterator2.return();
-          }
-        } finally {
-          if (_didIteratorError2) {
-            throw _iteratorError2;
-          }
-        }
-      }
-
-      this._hoveredNodes = newHoveredNodes;
-    }
-  }, {
-    key: 'handleSelect',
-    value: function handleSelect(inputSource, frame, refSpace) {
-      var inputPose = frame.getInputPose(inputSource, refSpace);
-
-      if (!inputPose) {
-        return;
-      }
-
-      this.handleSelectPointer(inputPose.targetRay);
-    }
-  }, {
-    key: 'handleSelectPointer',
-    value: function handleSelectPointer(targetRay) {
-      if (targetRay) {
-        // Check and see if the pointer is pointing at any selectable objects.
-        var hitResult = this.hitTest(targetRay);
-
-        if (hitResult) {
-          // Render a cursor at the intersection point.
-          hitResult.node.handleSelect();
-        }
-      }
-    }
-  }, {
-    key: 'enableStats',
-    value: function enableStats(enable) {
-      if (enable == this._statsEnabled) {
-        return;
-      }
-
-      this._statsEnabled = enable;
-
-      if (enable) {
-        this._stats = new _statsViewer.StatsViewer();
-        this._stats.selectable = true;
-        this.addNode(this._stats);
-
-        if (this._statsStanding) {
-          this._stats.translation = [0, 1.4, -0.75];
-        } else {
-          this._stats.translation = [0, -0.3, -0.5];
-        }
-        this._stats.scale = [0.3, 0.3, 0.3];
-        _glMatrix.quat.fromEuler(this._stats.rotation, -45.0, 0.0, 0.0);
-      } else if (!enable) {
-        if (this._stats) {
-          this.removeNode(this._stats);
-          this._stats = null;
-        }
-      }
-    }
-  }, {
-    key: 'standingStats',
-    value: function standingStats(enable) {
-      this._statsStanding = enable;
-      if (this._stats) {
-        if (this._statsStanding) {
-          this._stats.translation = [0, 1.4, -0.75];
-        } else {
-          this._stats.translation = [0, -0.3, -0.5];
-        }
-        this._stats.scale = [0.3, 0.3, 0.3];
-        _glMatrix.quat.fromEuler(this._stats.rotation, -45.0, 0.0, 0.0);
-      }
-    }
-  }, {
-    key: 'draw',
-    value: function draw(projectionMatrix, viewMatrix, eye) {
-      var view = new _renderer.RenderView();
-      view.projectionMatrix = projectionMatrix;
-      view.viewMatrix = viewMatrix;
-      if (eye) {
-        view.eye = eye;
-      }
-
-      this.drawViewArray([view]);
-    }
-
-    /** Draws the scene into the base layer of the XRFrame's session */
-
-  }, {
-    key: 'drawXRFrame',
-    value: function drawXRFrame(xrFrame, pose) {
-      if (!this._renderer || !pose) {
-        return;
-      }
-
-      var gl = this._renderer.gl;
-      var session = xrFrame.session;
-      // Assumed to be a XRWebGLLayer for now.
-      var layer = session.renderState.baseLayer;
-
-      if (!gl) {
-        return;
-      }
-
-      gl.bindFramebuffer(gl.FRAMEBUFFER, layer.framebuffer);
-
-      if (this.clear) {
-        gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-      }
-
-      var views = [];
-      var _iteratorNormalCompletion3 = true;
-      var _didIteratorError3 = false;
-      var _iteratorError3 = undefined;
-
-      try {
-        for (var _iterator3 = pose.views[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
-          var view = _step3.value;
-
-          views.push(new WebXRView(view, pose, layer));
-        }
-      } catch (err) {
-        _didIteratorError3 = true;
-        _iteratorError3 = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion3 && _iterator3.return) {
-            _iterator3.return();
-          }
-        } finally {
-          if (_didIteratorError3) {
-            throw _iteratorError3;
-          }
-        }
-      }
-
-      this.drawViewArray(views);
-    }
-  }, {
-    key: 'drawViewArray',
-    value: function drawViewArray(views) {
-      // Don't draw when we don't have a valid context
-      if (!this._renderer) {
-        return;
-      }
-
-      this._renderer.drawViews(views, this);
-    }
-  }, {
-    key: 'startFrame',
-    value: function startFrame() {
-      var prevTimestamp = this._timestamp;
-      this._timestamp = performance.now();
-      if (this._stats) {
-        this._stats.begin();
-      }
-
-      if (prevTimestamp >= 0) {
-        this._frameDelta = this._timestamp - prevTimestamp;
-      } else {
-        this._frameDelta = 0;
-      }
-
-      this._update(this._timestamp, this._frameDelta);
-
-      return this._frameDelta;
-    }
-  }, {
-    key: 'endFrame',
-    value: function endFrame() {
-      if (this._inputRenderer && this._resetInputEndFrame) {
-        this._inputRenderer.reset();
-      }
-
-      if (this._stats) {
-        this._stats.end();
-      }
-    }
-
-    // Override to load scene resources on construction or context restore.
-
-  }, {
-    key: 'onLoadScene',
-    value: function onLoadScene(renderer) {
-      return Promise.resolve();
-    }
-  }, {
-    key: 'inputRenderer',
-    get: function get() {
-      if (!this._inputRenderer) {
-        this._inputRenderer = new _inputRenderer.InputRenderer();
-        this.addNode(this._inputRenderer);
-      }
-      return this._inputRenderer;
-    }
-  }]);
-
-  return Scene;
-}(_node.Node);
-
-/***/ }),
-
-/***/ "./src/util/fallback-helper.js":
-/*!*************************************!*\
-  !*** ./src/util/fallback-helper.js ***!
-  \*************************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-exports.FallbackHelper = undefined;
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }(); // Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-var _glMatrix = __webpack_require__(/*! ../math/gl-matrix.js */ "./src/math/gl-matrix.js");
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var LOOK_SPEED = 0.0025;
-
-var FallbackHelper = exports.FallbackHelper = function () {
-  function FallbackHelper(scene, gl) {
-    var _this = this;
-
-    _classCallCheck(this, FallbackHelper);
-
-    this.scene = scene;
-    this.gl = gl;
-    this._emulateStage = false;
-
-    this.lookYaw = 0;
-    this.lookPitch = 0;
-
-    this.viewMatrix = _glMatrix.mat4.create();
-
-    var projectionMatrix = _glMatrix.mat4.create();
-    this.projectionMatrix = projectionMatrix;
-
-    // Using a simple identity matrix for the view.
-    _glMatrix.mat4.identity(this.viewMatrix);
-
-    // We need to track the canvas size in order to resize the WebGL
-    // backbuffer width and height, as well as update the projection matrix
-    // and adjust the viewport.
-    function onResize() {
-      gl.canvas.width = gl.canvas.offsetWidth * window.devicePixelRatio;
-      gl.canvas.height = gl.canvas.offsetHeight * window.devicePixelRatio;
-      _glMatrix.mat4.perspective(projectionMatrix, Math.PI * 0.4, gl.canvas.width / gl.canvas.height, 0.1, 1000.0);
-      gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-    }
-    window.addEventListener('resize', onResize);
-    onResize();
-
-    // Upding the view matrix with touch or mouse events.
-    var canvas = gl.canvas;
-    var lastTouchX = 0;
-    var lastTouchY = 0;
-    canvas.addEventListener('touchstart', function (ev) {
-      if (ev.touches.length == 2) {
-        lastTouchX = ev.touches[1].pageX;
-        lastTouchY = ev.touches[1].pageY;
-      }
-    });
-    canvas.addEventListener('touchmove', function (ev) {
-      // Rotate the view when two fingers are being used.
-      if (ev.touches.length == 2) {
-        _this.onLook(ev.touches[1].pageX - lastTouchX, ev.touches[1].pageY - lastTouchY);
-        lastTouchX = ev.touches[1].pageX;
-        lastTouchY = ev.touches[1].pageY;
-      }
-    });
-    canvas.addEventListener('mousemove', function (ev) {
-      // Only rotate when the right button is pressed.
-      if (ev.buttons & 2) {
-        _this.onLook(ev.movementX, ev.movementY);
-      }
-    });
-    canvas.addEventListener('contextmenu', function (ev) {
-      // Prevent context menus on the canvas so that we can use right click to rotate.
-      ev.preventDefault();
-    });
-
-    this.boundOnFrame = this.onFrame.bind(this);
-    window.requestAnimationFrame(this.boundOnFrame);
-  }
-
-  _createClass(FallbackHelper, [{
-    key: 'onLook',
-    value: function onLook(yaw, pitch) {
-      this.lookYaw += yaw * LOOK_SPEED;
-      this.lookPitch += pitch * LOOK_SPEED;
-
-      // Clamp pitch rotation beyond looking straight up or down.
-      if (this.lookPitch < -Math.PI * 0.5) {
-        this.lookPitch = -Math.PI * 0.5;
-      }
-      if (this.lookPitch > Math.PI * 0.5) {
-        this.lookPitch = Math.PI * 0.5;
-      }
-
-      this.updateView();
-    }
-  }, {
-    key: 'onFrame',
-    value: function onFrame(t) {
-      var gl = this.gl;
-      window.requestAnimationFrame(this.boundOnFrame);
-
-      this.scene.startFrame();
-
-      // We can skip setting the framebuffer and viewport every frame, because
-      // it won't change from frame to frame and we're updating the viewport
-      // only when we resize for efficency.
-      gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-      // We're drawing with our own projection and view matrix now, and we
-      // don't have a list of view to loop through, but otherwise all of the
-      // WebGL drawing logic is exactly the same.
-      this.scene.draw(this.projectionMatrix, this.viewMatrix);
-
-      this.scene.endFrame();
-    }
-  }, {
-    key: 'updateView',
-    value: function updateView() {
-      _glMatrix.mat4.identity(this.viewMatrix);
-
-      _glMatrix.mat4.rotateX(this.viewMatrix, this.viewMatrix, -this.lookPitch);
-      _glMatrix.mat4.rotateY(this.viewMatrix, this.viewMatrix, -this.lookYaw);
-
-      // If we're emulating a stage frame of reference we'll need to move the view
-      // matrix roughly a meter and a half up in the air.
-      if (this._emulateStage) {
-        _glMatrix.mat4.translate(this.viewMatrix, this.viewMatrix, [0, -1.6, 0]);
-      }
-    }
-  }, {
-    key: 'emulateStage',
-    get: function get() {
-      return this._emulateStage;
-    },
-    set: function set(value) {
-      this._emulateStage = value;
-      this.updateView();
-    }
-  }]);
-
-  return FallbackHelper;
-}();
-
-/***/ }),
-
-/***/ "./src/util/query-args.js":
-/*!********************************!*\
-  !*** ./src/util/query-args.js ***!
-  \********************************/
-/*! no static exports found */
-/***/ (function(module, exports, __webpack_require__) {
-
-"use strict";
-
-
-Object.defineProperty(exports, "__esModule", {
-  value: true
-});
-
-var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();
-
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-/*
-Provides a simple way to get values from the query string if they're present
-and use a default value if not. Not strictly a "WebGL" utility, but I use it
-frequently enough for debugging that I wanted to include it here.
-
-Example:
-For the URL http://example.com/index.html?particleCount=1000
-
-QueryArgs.getInt("particleCount", 100); // URL overrides, returns 1000
-QueryArgs.getInt("particleSize", 10); // Not in URL, returns default of 10
-*/
-
-var urlArgs = null;
-window.onhashchange = function () {
-  // Force re-parsing on next access
-  urlArgs = null;
-};
-
-function ensureArgsCached() {
-  if (!urlArgs) {
-    urlArgs = {};
-    var query = window.location.search.substring(1) || window.location.hash.substring(1);
-    var vars = query.split('&');
-    for (var i = 0; i < vars.length; i++) {
-      var pair = vars[i].split('=');
-      urlArgs[pair[0].toLowerCase()] = decodeURIComponent(pair[1]);
-    }
-  }
-}
-
-var QueryArgs = exports.QueryArgs = function () {
-  function QueryArgs() {
-    _classCallCheck(this, QueryArgs);
-  }
-
-  _createClass(QueryArgs, null, [{
-    key: 'getString',
-    value: function getString(name, defaultValue) {
-      ensureArgsCached();
-      var lcaseName = name.toLowerCase();
-      if (lcaseName in urlArgs) {
-        return urlArgs[lcaseName];
-      }
-      return defaultValue;
-    }
-  }, {
-    key: 'getInt',
-    value: function getInt(name, defaultValue) {
-      ensureArgsCached();
-      var lcaseName = name.toLowerCase();
-      if (lcaseName in urlArgs) {
-        return parseInt(urlArgs[lcaseName], 10);
-      }
-      return defaultValue;
-    }
-  }, {
-    key: 'getFloat',
-    value: function getFloat(name, defaultValue) {
-      ensureArgsCached();
-      var lcaseName = name.toLowerCase();
-      if (lcaseName in urlArgs) {
-        return parseFloat(urlArgs[lcaseName]);
-      }
-      return defaultValue;
-    }
-  }, {
-    key: 'getBool',
-    value: function getBool(name, defaultValue) {
-      ensureArgsCached();
-      var lcaseName = name.toLowerCase();
-      if (lcaseName in urlArgs) {
-        return parseInt(urlArgs[lcaseName], 10) != 0;
-      }
-      return defaultValue;
-    }
-  }]);
-
-  return QueryArgs;
-}();
-
-/***/ })
-
-/******/ });
-});
-//# sourceMappingURL=cottontail.debug.js.map
\ No newline at end of file
diff --git a/js/cottontail/build/cottontail.debug.js.map b/js/cottontail/build/cottontail.debug.js.map
deleted file mode 100644
index f9fa6940b..000000000
--- a/js/cottontail/build/cottontail.debug.js.map
+++ /dev/null
@@ -1 +0,0 @@
-{"version":3,"sources":["webpack:///webpack/universalModuleDefinition","webpack:///webpack/bootstrap","webpack:///./node_modules/gl-matrix/src/gl-matrix/common.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/mat2.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/mat2d.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/mat3.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/mat4.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/quat.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/quat2.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/vec2.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/vec3.js","webpack:///./node_modules/gl-matrix/src/gl-matrix/vec4.js","webpack:///./src/core/material.js","webpack:///./src/core/node.js","webpack:///./src/core/primitive.js","webpack:///./src/core/program.js","webpack:///./src/core/renderer.js","webpack:///./src/core/texture.js","webpack:///./src/cottontail.js","webpack:///./src/geometry/box-builder.js","webpack:///./src/geometry/primitive-stream.js","webpack:///./src/loaders/gltf2.js","webpack:///./src/materials/pbr.js","webpack:///./src/math/gl-matrix.js","webpack:///./src/math/ray.js","webpack:///./src/nodes/bounds-renderer.js","webpack:///./src/nodes/button.js","webpack:///./src/nodes/cube-sea.js","webpack:///./src/nodes/drop-shadow.js","webpack:///./src/nodes/gltf2.js","webpack:///./src/nodes/input-renderer.js","webpack:///./src/nodes/seven-segment-text.js","webpack:///./src/nodes/skybox.js","webpack:///./src/nodes/stats-viewer.js","webpack:///./src/nodes/video.js","webpack:///./src/scenes/scene.js","webpack:///./src/util/fallback-helper.js","webpack:///./src/util/query-args.js"],"names":["stateToBlendFunc","GL","WebGLRenderingContext","CAP","CULL_FACE","BLEND","DEPTH_TEST","STENCIL_TEST","COLOR_MASK","DEPTH_MASK","STENCIL_MASK","MAT_STATE","CAPS_RANGE","BLEND_SRC_SHIFT","BLEND_SRC_RANGE","BLEND_DST_SHIFT","BLEND_DST_RANGE","BLEND_FUNC_RANGE","DEPTH_FUNC_SHIFT","DEPTH_FUNC_RANGE","RENDER_ORDER","OPAQUE","SKY","TRANSPARENT","ADDITIVE","DEFAULT","state","mask","shift","value","SRC_COLOR","MaterialState","_state","blendFuncSrc","SRC_ALPHA","blendFuncDst","ONE_MINUS_SRC_ALPHA","depthFunc","LESS","NEVER","MaterialSampler","uniformName","_uniformName","_texture","MaterialUniform","defaultValue","length","_value","_length","Array","Material","renderOrder","_samplers","_uniforms","sampler","push","uniform","renderPrimitive","DEFAULT_TRANSLATION","Float32Array","DEFAULT_ROTATION","DEFAULT_SCALE","tmpRayMatrix","mat4","create","Node","name","children","parent","visible","selectable","_matrix","_dirtyTRS","_translation","_rotation","_scale","_dirtyWorldMatrix","_worldMatrix","_activeFrameId","_hoverFrameId","_renderPrimitives","_renderer","_selectHandler","renderer","clearRenderPrimitives","onRendererChanged","child","_setRenderer","cloneNode","vec3","copy","quat","waitForComplete","then","primitive","addRenderPrimitive","addNode","clone","frameId","markActive","removeNode","i","indexOf","splice","setMatrixDirty","fromRotationTranslationScale","childPromises","Promise","all","_instances","index","ray","localRay","_min","invert","worldMatrix","multiply","transformMatrix","Ray","intersection","intersectsAABB","_max","transformMat4","_hitTestSelectableNode","origin","fromValues","x","y","z","node","distance","result","childResult","hitTest","timestamp","frameDelta","onUpdate","_update","_updateLocalMatrix","mul","PrimitiveAttribute","buffer","componentCount","componentType","stride","byteOffset","normalized","Primitive","attributes","elementCount","mode","indexBuffer","indexByteOffset","indexType","min","max","Program","gl","vertSrc","fragSrc","attribMap","defines","_gl","program","createProgram","attrib","_firstUse","_nextUseCallbacks","definesString","define","_vertShader","createShader","VERTEX_SHADER","attachShader","shaderSource","compileShader","_fragShader","FRAGMENT_SHADER","attribName","bindAttribLocation","linkProgram","callback","getProgramParameter","LINK_STATUS","getShaderParameter","COMPILE_STATUS","console","error","getShaderInfoLog","getProgramInfoLog","deleteProgram","attribCount","ACTIVE_ATTRIBUTES","attribInfo","getActiveAttrib","getAttribLocation","uniformCount","ACTIVE_UNIFORMS","uniformInfo","getActiveUniform","replace","getUniformLocation","deleteShader","useProgram","createWebGLContext","ATTRIB","POSITION","NORMAL","TANGENT","TEXCOORD_0","TEXCOORD_1","COLOR_0","ATTRIB_MASK","DEF_LIGHT_DIR","DEF_LIGHT_COLOR","PRECISION_REGEX","RegExp","VERTEX_SHADER_SINGLE_ENTRY","VERTEX_SHADER_MULTI_ENTRY","FRAGMENT_SHADER_ENTRY","isPowerOfTwo","n","glAttribs","alpha","webglCanvas","document","createElement","contextTypes","webgl2","context","contextType","getContext","webglType","RenderView","projectionMatrix","viewMatrix","viewport","eye","_eye","_eyeIndex","RenderBuffer","target","usage","_target","_usage","_buffer","_promise","resolve","RenderPrimitiveAttribute","primitiveAttribute","_attrib_index","_componentCount","_componentType","_stride","_byteOffset","_normalized","RenderPrimitiveAttributeBuffer","_attributes","RenderPrimitive","_material","setPrimitive","_mode","_elementCount","_vao","_complete","_attributeBuffers","_attributeMask","attribute","renderAttribute","foundBuffer","attributeBuffer","_indexBuffer","_indexByteOffset","_indexType","material","reject","completionPromises","_samplerDictionary","_uniform_dictionary","RenderTexture","texture","_activeCallback","inverseMatrix","setCap","glEnum","cap","prevState","change","enable","disable","RenderMaterialSampler","materialSampler","_renderTexture","_getRenderTexture","_index","RenderMaterialUniform","materialUniform","_uniform","RenderMaterial","_program","_completeForActiveFrame","renderSampler","renderUniform","_firstBind","_renderOrder","activeTexture","TEXTURE0","bindTexture","TEXTURE_2D","uniform1fv","uniform2fv","uniform3fv","uniform4fv","otherState","Renderer","_frameId","_programCache","_textureCache","_cameraPositions","_vaoExt","getExtension","fragHighPrecision","getShaderPrecisionFormat","HIGH_FLOAT","_defaultFragPrecision","precision","_depthMaskNeedsReset","_colorMaskNeedsReset","_globalLightColor","_globalLightDir","data","STATIC_DRAW","glBuffer","createBuffer","renderBuffer","bindBuffer","bufferData","byteLength","offset","bufferSubData","updateRenderBuffer","_getMaterialProgram","renderMaterial","setRenderMaterial","meshNode","createRenderPrimitive","views","rootNode","vp","width","height","cameraPosition","set","renderPrimitives","_drawRenderPrimitiveSet","bindVertexArrayOES","depthMask","colorMask","attribMask","use","LIGHT_DIRECTION","LIGHT_COLOR","uniformMatrix4fv","PROJECTION_MATRIX","VIEW_MATRIX","CAMERA_POSITION","uniform1i","EYE_INDEX","eyeIndex","_bindMaterialState","bind","createVertexArrayOES","_bindPrimitive","view","instance","MODEL_MATRIX","drawElements","drawArrays","key","textureKey","Error","textureHandle","createTexture","renderTexture","DataTexture","texImage2D","format","_type","_data","_setSamplerParameters","UNSIGNED_BYTE","source","VideoTexture","_video","addEventListener","paused","waiting","powerOfTwo","mipmap","generateMipmap","minFilter","LINEAR_MIPMAP_LINEAR","LINEAR","wrapS","REPEAT","CLAMP_TO_EDGE","wrapT","texParameteri","TEXTURE_MAG_FILTER","magFilter","TEXTURE_MIN_FILTER","TEXTURE_WRAP_S","TEXTURE_WRAP_T","materialName","vertexSource","fragmentSource","getProgramDefines","_getProgramKey","multiview","fullVertexSource","precisionMatch","match","fragPrecisionHeader","fullFragmentSource","onNextUse","enableVertexAttribArray","disableVertexAttribArray","ARRAY_BUFFER","vertexAttribPointer","ELEMENT_ARRAY_BUFFER","prevMaterial","_capsDiff","colorMaskChange","depthMaskChange","stencilMaskChange","stencilMask","_blendDiff","blendFunc","_depthFuncDiff","TextureSampler","Texture","RGBA","ImageTexture","img","_img","_imgBitmap","src","complete","naturalWidth","_finishImage","window","createImageBitmap","imgBitmap","UrlTexture","url","Image","BlobTexture","blob","URL","createObjectURL","video","readyState","videoWidth","videoHeight","nextDataTextureIndex","type","_width","_height","_format","_key","ColorTexture","r","g","b","a","colorData","Uint8Array","PrimitiveStream","BoxBuilder","PbrMaterial","mat3","vec4","BoundsRenderer","ButtonNode","DropShadowNode","CubeSeaNode","Gltf2Node","SkyboxNode","VideoNode","WebXRView","Scene","FallbackHelper","QueryArgs","stream","primitiveStream","w","h","d","wh","hh","dh","cx","cy","cz","startGeometry","idx","nextVertexIndex","pushTriangle","pushVertex","endGeometry","center","size","hs","pushBox","GeometryBuilderBase","tempVec3","options","_vertices","_indices","_geometryStarted","_vertexOffset","_vertexIndex","_highIndex","_flipWinding","_invertNormals","_transform","_normalTransform","u","v","nx","ny","nz","transformMat3","Math","idxA","idxB","idxC","vertexBuffer","createRenderBuffer","Uint16Array","attribs","FLOAT","setIndexBuffer","setBounds","fromMat4","_stream","finishPrimitive","clear","GLB_MAGIC","CHUNK_TYPE","JSON","BIN","isAbsoluteUri","uri","absRegEx","location","protocol","isDataUri","dataRegEx","resolveUri","baseUrl","getComponentCount","Gltf2Loader","fetch","response","lastIndexOf","substring","endsWith","json","loadFromJson","arrayBuffer","loadFromBinary","headerView","DataView","magic","getUint32","version","chunks","chunkOffset","chunkHeaderView","chunkLength","chunkType","slice","decoder","TextDecoder","jsonString","decode","parse","binaryChunk","asset","minVersion","buffers","Gltf2Resource","bufferViews","bufferView","Gltf2BufferView","images","image","textures","glTexture","getTexture","textureInfo","materials","glMaterial","pbr","pbrMetallicRoughness","baseColorFactor","baseColor","baseColorTexture","metallicRoughnessFactor","metallicFactor","roughnessFactor","metallicRoughness","metallicRoughnessTexture","normal","normalTexture","occlusion","occlusionTexture","occlusionStrength","strength","emissiveFactor","emissive","emissiveTexture","alphaMode","blend","cullFace","doubleSided","accessors","meshes","mesh","glMesh","Gltf2Mesh","primitives","accessor","count","glAttribute","byteStride","glPrimitive","indices","sceneNode","scene","scenes","nodes","nodeId","processNodes","glNode","matrix","translation","rotation","scale","_viewPromise","_renderBuffer","dataView","_dataPromise","base64String","binaryArray","from","atob","c","charCodeAt","Blob","mimeType","VERTEX_SOURCE","EPIC_PBR_FUNCTIONS","FRAGMENT_SOURCE","defineSampler","defineUniform","programDefines","glMatrix","mat2","mat2d","quat2","vec2","normalMat","RAY_INTERSECTION_OFFSET","_dir","dir","bounds","tmin","sign","inv_dir","tmax","tymin","tymax","tzmin","tzmax","t","intersectionPoint","add","normalize","BoundsMaterial","ONE","depthTest","_stageBounds","stageBounds","verts","pointCount","geometry","point","BUTTON_SIZE","BUTTON_CORNER_RADIUS","BUTTON_CORNER_SEGMENTS","BUTTON_ICON_SIZE","BUTTON_LAYER_DISTANCE","BUTTON_COLOR","BUTTON_ALPHA","BUTTON_HOVER_COLOR","BUTTON_HOVER_ALPHA","BUTTON_HOVER_SCALE","BUTTON_HOVER_TRANSITION_TIME_MS","ButtonMaterial","ButtonIconMaterial","icon","iconTexture","_iconTexture","_hovered","_hoverT","hd","ihs","segments","rad","PI","cos","sin","section","floor","buttonPrimitive","_buttonRenderPrimitive","iconPrimitive","iconMaterial","_iconRenderPrimitive","hoverAmount","uniforms","_updateHoverState","samplers","CubeSeaMaterial","heavy","heavyGpu","cubeCount","cubeScale","halfOnly","autoRotate","imageUrl","_renderPrimitive","boxBuilder","pushCube","heroPrimitive","heroNode","createMesh","rebuildCubes","cubeSeaNode","halfGrid","pos","cubeSeaPrimitive","fromRotation","SHADOW_SEGMENTS","SHADOW_GROUND_OFFSET","SHADOW_CENTER_ALPHA","SHADOW_INNER_ALPHA","SHADOW_OUTER_ALPHA","SHADOW_INNER_RADIUS","SHADOW_OUTER_RADIUS","DropShadowMaterial","LEQUAL","segRad","shadowPrimitive","_shadowRenderPrimitive","gltfLoaderMap","WeakMap","_url","_resolver","_rejecter","loader","get","_ensurePromise","loadFromUrl","catch","err","LASER_TEXTURE_DATA","LASER_LENGTH","LASER_DIAMETER","LASER_FADE_END","LASER_FADE_POINT","LASER_DEFAULT_COLOR","CURSOR_RADIUS","CURSOR_SHADOW_RADIUS","CURSOR_SHADOW_INNER_LUMINANCE","CURSOR_SHADOW_OUTER_LUMINANCE","CURSOR_SHADOW_INNER_OPACITY","CURSOR_SHADOW_OUTER_OPACITY","CURSOR_OPACITY","CURSOR_SEGMENTS","CURSOR_DEFAULT_COLOR","CURSOR_DEFAULT_HIDDEN_COLOR","DEFAULT_RESET_OPTIONS","controllers","lasers","cursors","LaserMaterial","laser","laserColor","CURSOR_VERTEX_SHADER","CURSOR_FRAGMENT_SHADER","CursorMaterial","cursorColor","CursorHiddenMaterial","GEQUAL","InputRenderer","_maxInputElements","_controllers","_controllerNode","_controllerNodeHandedness","_lasers","_cursors","_activeControllers","_activeLasers","_activeCursors","controllerNode","handedness","gripMatrix","controller","targetRay","_createLaserMesh","cursorPos","_createCursorMesh","cursor","lr","ll","laserVerts","laserIndices","laserVertexBuffer","laserIndexBuffer","laserIndexCount","laserAttribs","laserPrimitive","laserMaterial","laserRenderPrimitive","cursorVerts","cursorIndices","indexOffset","cursorVertexBuffer","cursorIndexBuffer","cursorIndexCount","cursorAttribs","cursorPrimitive","cursorMaterial","cursorHiddenMaterial","cursorRenderPrimitive","cursorHiddenRenderPrimitive","TEXT_KERNING","SevenSegmentMaterial","SevenSegmentText","_text","_charNodes","clearNodes","vertices","segmentIndices","thickness","defineSegment","id","left","top","right","bottom","characters","defineCharacter","character","segment","vertexAttribs","_charPrimitives","char","charDef","text","charPrimitive","SkyboxMaterial","texCoordScaleOffset","_displayMode","displayMode","_rotationY","rotationY","latSegments","lonSegments","theta","sinTheta","cosTheta","idxOffsetA","idxOffsetB","j","phi","SEGMENTS","MAX_FPS","StatsMaterial","segmentToX","fpsToY","fpsToRGB","now","performance","Date","StatsViewer","_performanceMonitoring","_startTime","_prevFrameTime","_prevGraphUpdateTime","_frames","_fpsAverage","_fpsMin","_fpsStep","_lastSegment","_fpsVertexBuffer","_fpsRenderPrimitive","_fpsNode","_sevenSegmentNode","fpsVerts","fpsIndices","addBGSquare","DYNAMIC_DRAW","fpsIndexBuffer","fpsAttribs","fpsPrimitive","time","frameFps","intervalTime","round","_updateGraph","log","valueLow","valueHigh","color","y0","y1","updateVerts","VideoMaterial","_video_texture","pose","layer","getViewport","_timestamp","_frameDelta","_statsStanding","_stats","_statsEnabled","enableStats","_inputRenderer","_resetInputEndFrame","_lastTimestamp","_hoverFrame","_hoveredNodes","frame","refSpace","session","getInputSources","inputSources","newHoveredNodes","lastHoverFrame","inputSource","inputPose","getInputPose","gripTransform","inputRenderer","addController","targetRayMode","addLaserPointer","hitResult","addCursor","onHoverStart","cursorDistance","direction","hoverNode","onHoverEnd","handleSelectPointer","handleSelect","fromEuler","drawViewArray","xrFrame","renderState","baseLayer","bindFramebuffer","FRAMEBUFFER","framebuffer","COLOR_BUFFER_BIT","DEPTH_BUFFER_BIT","drawViews","prevTimestamp","begin","reset","end","LOOK_SPEED","_emulateStage","lookYaw","lookPitch","identity","onResize","canvas","offsetWidth","devicePixelRatio","offsetHeight","perspective","drawingBufferWidth","drawingBufferHeight","lastTouchX","lastTouchY","ev","touches","pageX","pageY","onLook","buttons","movementX","movementY","preventDefault","boundOnFrame","onFrame","requestAnimationFrame","yaw","pitch","updateView","startFrame","draw","endFrame","rotateX","rotateY","translate","urlArgs","onhashchange","ensureArgsCached","query","search","hash","vars","split","pair","toLowerCase","decodeURIComponent","lcaseName","parseInt","parseFloat"],"mappings":";;;;;;;;;;;;;;;;;;;;;AAAA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,CAAC;AACD,O;ACVA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;;AAGA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,kDAA0C,gCAAgC;AAC1E;AACA;;AAEA;AACA;AACA;AACA,gEAAwD,kBAAkB;AAC1E;AACA,yDAAiD,cAAc;AAC/D;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,iDAAyC,iCAAiC;AAC1E,wHAAgH,mBAAmB,EAAE;AACrI;AACA;;AAEA;AACA;AACA;AACA,mCAA2B,0BAA0B,EAAE;AACvD,yCAAiC,eAAe;AAChD;AACA;AACA;;AAEA;AACA,8DAAsD,+DAA+D;;AAErH;AACA;;;AAGA;AACA;;;;;;;;;;;;;AClFA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AACA;AACA;AACA;;AAEA;AACO;AACA;AACA;;AAEP;AACA;AACA;AACA,WAAW,KAAK;AAChB;AACO;AACP;AACA;;AAEA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;;;;;;;;;;;;ACzCA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAuC;;AAEvC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB;;AAEO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;;;;;;;;;;;;AC9ZP;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,MAAM;AACnB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;;;;;;;;;;;;AC/bP;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,UAAU,KAAK;AACf,UAAU,KAAK;AACf;AACA,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,UAAU,KAAK;AACf,UAAU,KAAK;AACf;AACA,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;;AAIA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;;;;;;;;;;;;AC1uBP;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AAGA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA,YAAY,WAAW,WAAW;AAClC;AACA;AACA;AACA;;AAEA,YAAY,WAAW,YAAY;AACnC;AACA;AACA;AACA;;AAEA,aAAa,YAAY,YAAY;AACrC;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH,eAAe,YAAY,YAAY;AACvC,eAAe,YAAY,YAAY;AACvC,eAAe,YAAY,aAAa;;AAExC,iBAAiB,cAAc,cAAc;AAC7C,iBAAiB,cAAc,cAAc;AAC7C,iBAAiB,cAAc,eAAe;;AAE9C;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,YAAY,kDAAgB,GAAG,aAAa;;AAE5C;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA,aAAa,YAAY,YAAY;AACrC,aAAa,YAAY,YAAY;AACrC,aAAa,YAAY,aAAa;;AAEtC;AACA,sBAAsB,yBAAyB;AAC/C,0BAA0B,qBAAqB;AAC/C,0BAA0B,yBAAyB;;AAEnD;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,kBAAkB;AAClB;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,kBAAkB;AAClB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,kBAAkB;AAClB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,kBAAkB;AAClB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA,YAAY,kDAAgB,GAAG,aAAa;;AAE5C;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,aAAa,KAAK;AAClB;AACO;AACP,wBAAwB,qDAAmB;AAC3C;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,YAAY,KAAK;AACjB,YAAY,KAAK;AACjB,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA,YAAY,KAAK;AACjB,YAAY,KAAK;AACjB,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB;AACA,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD,iCAAiC,kDAAgB;AACjD;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;;;;;;;;;;;;AClrDP;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAuC;AACN;AACA;AACA;;AAEjC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,YAAY,KAAK;AACjB,YAAY,KAAK;AACjB,YAAY,OAAO;AACnB;AACO;AACP;AACA;AACA,UAAU,kDAAgB;AAC1B;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,uBAAuB,kDAAgB;AACvC;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA,WAAW,iDAAe;AAC1B,WAAW,iDAAe;AAC1B,WAAW,iDAAe;;AAE1B;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;;AAEA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACA;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA,oCAAoC;AACpC;AACA,sBAAsB;AACtB;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,EAAE;AACb,WAAW,EAAE;AACb,WAAW,EAAE;AACb,aAAa,KAAK;AAClB;AACA;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACA;AACO,cAAc,8CAAU;;AAE/B;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACA;AACO,mBAAmB,mDAAe;;AAEzC;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACA;AACO,aAAa,6CAAS;;AAE7B;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACA;AACO,YAAY,4CAAQ;;AAE3B;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACA;AACO,YAAY,4CAAQ;;AAE3B;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACA;AACO,cAAc,8CAAU;;AAE/B;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACA;AACO,YAAY,4CAAQ;;AAE3B;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACA;AACO,aAAa,6CAAS;;AAE7B;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO,eAAe,+CAAW;;AAEjC;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACA;AACO,sBAAsB,sDAAkB;;AAE/C;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACA;AACO,kBAAkB,kDAAc;;AAEvC;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO,oBAAoB,oDAAgB;;AAE3C;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO,eAAe,+CAAW;;AAEjC;AACA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,+CAAW;AAC3B,kBAAkB,mDAAe;AACjC,kBAAkB,mDAAe;;AAEjC;AACA,cAAc,4CAAQ;AACtB;AACA,MAAM,8CAAU;AAChB,UAAU,4CAAQ;AAClB,QAAQ,8CAAU;AAClB,MAAM,kDAAc;AACpB;AACA;AACA,KAAK;AACL;AACA;AACA;AACA;AACA;AACA,KAAK;AACL,MAAM,8CAAU;AAChB;AACA;AACA;AACA;AACA;AACA;AACA;AACA,CAAC;;AAED;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA,CAAC;;AAED;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,aAAa,+CAAW;;AAExB;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,CAAC;;;;;;;;;;;;;ACtnBD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;AACN;AACA;;AAElC;AACA;AACA;AACA;AACA;AACA;AACA;;;AAGA;AACA;AACA;AACA,aAAa,MAAM;AACnB;AACO;AACP,eAAe,qDAAmB;AAClC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACA;AACO;AACP,eAAe,qDAAmB;AAClC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP,eAAe,qDAAmB;AAClC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP,eAAe,qDAAmB;AAClC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA,cAAc,+CAAW;AACzB,EAAE,oDAAgB;AAClB,cAAc,qDAAmB;AACjC,EAAE,uDAAmB;AACrB;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA,YAAY,KAAK;AACjB,YAAY,MAAM;AAClB,YAAY,KAAK;AACjB;AACO,gBAAgB,6CAAS;;AAEhC;AACA;AACA,YAAY,KAAK;AACjB,YAAY,MAAM;AAClB,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO,gBAAgB,6CAAS;;AAEhC;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA,YAAY,KAAK;AACjB,YAAY,MAAM;AAClB,YAAY,KAAK;AACjB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,EAAE,gDAAY;AACd;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,EAAE,gDAAY;AACd;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,EAAE,gDAAY;AACd;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA,sBAAsB,kDAAgB;AACtC;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACA;AACO,YAAY,4CAAQ;;AAE3B;AACA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACA;AACO,eAAe,+CAAW;;AAEjC;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACA;AACO,sBAAsB,sDAAkB;;AAE/C;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,MAAM;AACnB;AACA;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,MAAM;AACjB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,+BAA+B,kDAAgB;AAC/C,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC,yBAAyB,kDAAgB;AACzC;;;;;;;;;;;;;ACr1BA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA,UAAU,iDAAe;AACzB;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,MAAM;AACjB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;;;AAGA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,SAAS;AACpB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,KAAK;AACL;AACA;;AAEA,mBAAmB,OAAO;AAC1B,oBAAoB;AACpB;AACA,oBAAoB;AACpB;;AAEA;AACA;AACA,CAAC;;;;;;;;;;;;;AChnBD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA,UAAU,iDAAe;AACzB,WAAW,iDAAe;AAC1B;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;;AAEA;;AAEA;AACA;AACA;AACA;AACA;AACA,GAAG;AACH;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,SAAS;AACpB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,KAAK;AACL;AACA;;AAEA,mBAAmB,OAAO;AAC1B,oBAAoB,iBAAiB;AACrC;AACA,oBAAoB,iBAAiB;AACrC;;AAEA;AACA;AACA,CAAC;;;;;;;;;;;;;AChwBD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAwC;;AAExC;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC,KAAK,qDAAmB;AACxB;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP,gBAAgB,qDAAmB;AACnC;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,OAAO;AAClB,aAAa,KAAK;AAClB;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA,SAAS,iDAAe;AACxB,SAAS,iDAAe;AACxB;AACA,GAAG;AACH;AACA,SAAS,iDAAe;AACxB,SAAS,iDAAe;AACxB;AACA,GAAG;;AAEH;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,KAAK;AAClB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,aAAa,OAAO;AACpB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;;AAEA;AACA;AACA;AACA,WAAW,KAAK;AAChB,WAAW,KAAK;AAChB,aAAa,QAAQ;AACrB;AACO;AACP;AACA;AACA,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C,+BAA+B,kDAAgB;AAC/C;;AAEA;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA,cAAc;AACd;AACA;AACO;;AAEP;AACA;AACA;AACA,WAAW,MAAM;AACjB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,OAAO;AAClB,WAAW,SAAS;AACpB,WAAW,OAAO;AAClB,aAAa,MAAM;AACnB;AACA;AACO;AACP;;AAEA;AACA;AACA;AACA;AACA;;AAEA;AACA;AACA;;AAEA;AACA;AACA,KAAK;AACL;AACA;;AAEA,mBAAmB,OAAO;AAC1B,oBAAoB,iBAAiB,iBAAiB;AACtD;AACA,oBAAoB,iBAAiB,iBAAiB;AACtD;;AAEA;AACA;AACA,CAAC;;;;;;;;;;;;;;;;;;;;;QC3hBeA,gB,GAAAA,gB;;;;AA9DhB;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,IAAMC,KAAKC,qBAAX,C,CAAkC;;AAE3B,IAAMC,oBAAM;AACjB;AACAC,aAAW,KAFM;AAGjBC,SAAO,KAHU;AAIjBC,cAAY,KAJK;AAKjBC,gBAAc,KALG;AAMjBC,cAAY,KANK;AAOjBC,cAAY,KAPK;AAQjBC,gBAAc;AARG,CAAZ;;AAWA,IAAMC,gCAAY;AACvBC,cAAY,UADW;AAEvBC,mBAAiB,CAFM;AAGvBC,mBAAiB,UAHM;AAIvBC,mBAAiB,EAJM;AAKvBC,mBAAiB,UALM;AAMvBC,oBAAkB,UANK;AAOvBC,oBAAkB,EAPK;AAQvBC,oBAAkB;AARK,CAAlB;;AAWA,IAAMC,sCAAe;AAC1B;AACAC,UAAQ,CAFkB;;AAI1B;AACAC,OAAK,CALqB;;AAO1B;AACAC,eAAa,CARa;;AAU1B;AACA;AACAC,YAAU,CAZgB;;AAc1B;AACAC,WAAS;AAfiB,CAArB;;AAkBA,SAASzB,gBAAT,CAA0B0B,KAA1B,EAAiCC,IAAjC,EAAuCC,KAAvC,EAA8C;AACnD,MAAIC,QAAQ,CAACH,QAAQC,IAAT,KAAkBC,KAA9B;AACA,UAAQC,KAAR;AACE,SAAK,CAAL;AACA,SAAK,CAAL;AACE,aAAOA,KAAP;AACF;AACE,aAAQA,QAAQ,CAAT,GAAc5B,GAAG6B,SAAxB;AALJ;AAOD;;IAEYC,a,WAAAA,a;AACX,2BAAc;AAAA;;AACZ,SAAKC,MAAL,GAAc7B,IAAIC,SAAJ,GACAD,IAAIG,UADJ,GAEAH,IAAIK,UAFJ,GAGAL,IAAIM,UAHlB;;AAKA;AACA,SAAKwB,YAAL,GAAoBhC,GAAGiC,SAAvB;AACA,SAAKC,YAAL,GAAoBlC,GAAGmC,mBAAvB;;AAEA,SAAKC,SAAL,GAAiBpC,GAAGqC,IAApB;AACD;;;;wBAEc;AACb,aAAO,CAAC,EAAE,KAAKN,MAAL,GAAc7B,IAAIC,SAApB,CAAR;AACD,K;sBACYyB,K,EAAO;AAClB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIC,SAAnB;AACD,OAFD,MAEO;AACL,aAAK4B,MAAL,IAAe,CAAC7B,IAAIC,SAApB;AACD;AACF;;;wBAEW;AACV,aAAO,CAAC,EAAE,KAAK4B,MAAL,GAAc7B,IAAIE,KAApB,CAAR;AACD,K;sBACSwB,K,EAAO;AACf,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIE,KAAnB;AACD,OAFD,MAEO;AACL,aAAK2B,MAAL,IAAe,CAAC7B,IAAIE,KAApB;AACD;AACF;;;wBAEe;AACd,aAAO,CAAC,EAAE,KAAK2B,MAAL,GAAc7B,IAAIG,UAApB,CAAR;AACD,K;sBACauB,K,EAAO;AACnB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIG,UAAnB;AACD,OAFD,MAEO;AACL,aAAK0B,MAAL,IAAe,CAAC7B,IAAIG,UAApB;AACD;AACF;;;wBAEiB;AAChB,aAAO,CAAC,EAAE,KAAK0B,MAAL,GAAc7B,IAAII,YAApB,CAAR;AACD,K;sBACesB,K,EAAO;AACrB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAII,YAAnB;AACD,OAFD,MAEO;AACL,aAAKyB,MAAL,IAAe,CAAC7B,IAAII,YAApB;AACD;AACF;;;wBAEe;AACd,aAAO,CAAC,EAAE,KAAKyB,MAAL,GAAc7B,IAAIK,UAApB,CAAR;AACD,K;sBACaqB,K,EAAO;AACnB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIK,UAAnB;AACD,OAFD,MAEO;AACL,aAAKwB,MAAL,IAAe,CAAC7B,IAAIK,UAApB;AACD;AACF;;;wBAEe;AACd,aAAO,CAAC,EAAE,KAAKwB,MAAL,GAAc7B,IAAIM,UAApB,CAAR;AACD,K;sBACaoB,K,EAAO;AACnB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIM,UAAnB;AACD,OAFD,MAEO;AACL,aAAKuB,MAAL,IAAe,CAAC7B,IAAIM,UAApB;AACD;AACF;;;wBAEe;AACd,aAAO,CAAC,CAAC,KAAKuB,MAAL,GAAcrB,UAAUQ,gBAAzB,KAA8CR,UAAUO,gBAAzD,IAA6EjB,GAAGsC,KAAvF;AACD,K;sBACaV,K,EAAO;AACnBA,cAAQA,QAAQ5B,GAAGsC,KAAnB;AACA,WAAKP,MAAL,IAAe,CAACrB,UAAUQ,gBAA1B;AACA,WAAKa,MAAL,IAAgBH,SAASlB,UAAUO,gBAAnC;AACD;;;wBAEiB;AAChB,aAAO,CAAC,EAAE,KAAKc,MAAL,GAAc7B,IAAIO,YAApB,CAAR;AACD,K;sBACemB,K,EAAO;AACrB,UAAIA,KAAJ,EAAW;AACT,aAAKG,MAAL,IAAe7B,IAAIO,YAAnB;AACD,OAFD,MAEO;AACL,aAAKsB,MAAL,IAAe,CAAC7B,IAAIO,YAApB;AACD;AACF;;;wBAEkB;AACjB,aAAOV,iBAAiB,KAAKgC,MAAtB,EAA8BrB,UAAUG,eAAxC,EAAyDH,UAAUE,eAAnE,CAAP;AACD,K;sBACgBgB,K,EAAO;AACtB,cAAQA,KAAR;AACE,aAAK,CAAL;AACA,aAAK,CAAL;AACE;AACF;AACEA,kBAASA,QAAQ5B,GAAG6B,SAAZ,GAAyB,CAAjC;AALJ;AAOA,WAAKE,MAAL,IAAe,CAACrB,UAAUG,eAA1B;AACA,WAAKkB,MAAL,IAAgBH,SAASlB,UAAUE,eAAnC;AACD;;;wBAEkB;AACjB,aAAOb,iBAAiB,KAAKgC,MAAtB,EAA8BrB,UAAUK,eAAxC,EAAyDL,UAAUI,eAAnE,CAAP;AACD,K;sBACgBc,K,EAAO;AACtB,cAAQA,KAAR;AACE,aAAK,CAAL;AACA,aAAK,CAAL;AACE;AACF;AACEA,kBAASA,QAAQ5B,GAAG6B,SAAZ,GAAyB,CAAjC;AALJ;AAOA,WAAKE,MAAL,IAAe,CAACrB,UAAUK,eAA1B;AACA,WAAKgB,MAAL,IAAgBH,SAASlB,UAAUI,eAAnC;AACD;;;;;;IAGGyB,e;AACJ,2BAAYC,WAAZ,EAAyB;AAAA;;AACvB,SAAKC,YAAL,GAAoBD,WAApB;AACA,SAAKE,QAAL,GAAgB,IAAhB;AACD;;;;wBAEa;AACZ,aAAO,KAAKA,QAAZ;AACD,K;sBAEWd,K,EAAO;AACjB,WAAKc,QAAL,GAAgBd,KAAhB;AACD;;;;;;IAGGe,e;AACJ,2BAAYH,WAAZ,EAAyBI,YAAzB,EAAuCC,MAAvC,EAA+C;AAAA;;AAC7C,SAAKJ,YAAL,GAAoBD,WAApB;AACA,SAAKM,MAAL,GAAcF,YAAd;AACA,SAAKG,OAAL,GAAeF,MAAf;AACA,QAAI,CAAC,KAAKE,OAAV,EAAmB;AACjB,UAAIH,wBAAwBI,KAA5B,EAAmC;AACjC,aAAKD,OAAL,GAAeH,aAAaC,MAA5B;AACD,OAFD,MAEO;AACL,aAAKE,OAAL,GAAe,CAAf;AACD;AACF;AACF;;;;wBAEW;AACV,aAAO,KAAKD,MAAZ;AACD,K;sBAESlB,K,EAAO;AACf,WAAKkB,MAAL,GAAclB,KAAd;AACD;;;;;;IAGUqB,Q,WAAAA,Q;AACX,sBAAc;AAAA;;AACZ,SAAKxB,KAAL,GAAa,IAAIK,aAAJ,EAAb;AACA,SAAKoB,WAAL,GAAmB/B,aAAaK,OAAhC;AACA,SAAK2B,SAAL,GAAiB,EAAjB;AACA,SAAKC,SAAL,GAAiB,EAAjB;AACD;;;;kCAEaZ,W,EAAa;AACzB,UAAIa,UAAU,IAAId,eAAJ,CAAoBC,WAApB,CAAd;AACA,WAAKW,SAAL,CAAeG,IAAf,CAAoBD,OAApB;AACA,aAAOA,OAAP;AACD;;;kCAEab,W,EAA0C;AAAA,UAA7BI,YAA6B,uEAAhB,IAAgB;AAAA,UAAVC,MAAU,uEAAH,CAAG;;AACtD,UAAIU,UAAU,IAAIZ,eAAJ,CAAoBH,WAApB,EAAiCI,YAAjC,EAA+CC,MAA/C,CAAd;AACA,WAAKO,SAAL,CAAeE,IAAf,CAAoBC,OAApB;AACA,aAAOA,OAAP;AACD;;;sCAciBC,e,EAAiB;AACjC,aAAO,EAAP;AACD;;;wBAdkB;AACjB,aAAO,IAAP;AACD;;;wBAEkB;AACjB,aAAO,IAAP;AACD;;;wBAEoB;AACnB,aAAO,IAAP;AACD;;;;;;;;;;;;;;;;;;;;;;;qjBChRH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;AACA;;;;AAEA,IAAMC,sBAAsB,IAAIC,YAAJ,CAAiB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAAjB,CAA5B;AACA,IAAMC,mBAAmB,IAAID,YAAJ,CAAiB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,CAAjB,CAAzB;AACA,IAAME,gBAAgB,IAAIF,YAAJ,CAAiB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAAjB,CAAtB;;AAEA,IAAIG,eAAeC,eAAKC,MAAL,EAAnB;;IAEaC,I,WAAAA,I;AACX,kBAAc;AAAA;;AACZ,SAAKC,IAAL,GAAY,IAAZ,CADY,CACM;AAClB,SAAKC,QAAL,GAAgB,EAAhB;AACA,SAAKC,MAAL,GAAc,IAAd;AACA,SAAKC,OAAL,GAAe,IAAf;AACA,SAAKC,UAAL,GAAkB,KAAlB;;AAEA,SAAKC,OAAL,GAAe,IAAf;;AAEA,SAAKC,SAAL,GAAiB,KAAjB;AACA,SAAKC,YAAL,GAAoB,IAApB;AACA,SAAKC,SAAL,GAAiB,IAAjB;AACA,SAAKC,MAAL,GAAc,IAAd;;AAEA,SAAKC,iBAAL,GAAyB,KAAzB;AACA,SAAKC,YAAL,GAAoB,IAApB;;AAEA,SAAKC,cAAL,GAAsB,CAAC,CAAvB;AACA,SAAKC,aAAL,GAAqB,CAAC,CAAtB;AACA,SAAKC,iBAAL,GAAyB,IAAzB;AACA,SAAKC,SAAL,GAAiB,IAAjB;;AAEA,SAAKC,cAAL,GAAsB,IAAtB;AACD;;;;iCAEYC,Q,EAAU;AACrB,UAAI,KAAKF,SAAL,IAAkBE,QAAtB,EAAgC;AAC9B;AACD;;AAED,UAAI,KAAKF,SAAT,EAAoB;AAClB;AACA;AACA,aAAKG,qBAAL;AACD;;AAED,WAAKH,SAAL,GAAiBE,QAAjB;AACA,UAAIA,QAAJ,EAAc;AACZ,aAAKE,iBAAL,CAAuBF,QAAvB;;AADY;AAAA;AAAA;;AAAA;AAGZ,+BAAkB,KAAKhB,QAAvB,8HAAiC;AAAA,gBAAxBmB,KAAwB;;AAC/BA,kBAAMC,YAAN,CAAmBJ,QAAnB;AACD;AALW;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAMb;AACF;;;sCAEiBA,Q,EAAU,CAE3B;AADC;;;AAGF;AACA;AACA;;;;4BACQ;AAAA;;AACN,UAAIK,YAAY,IAAIvB,IAAJ,EAAhB;AACAuB,gBAAUtB,IAAV,GAAiB,KAAKA,IAAtB;AACAsB,gBAAUnB,OAAV,GAAoB,KAAKA,OAAzB;AACAmB,gBAAUP,SAAV,GAAsB,KAAKA,SAA3B;;AAEAO,gBAAUhB,SAAV,GAAsB,KAAKA,SAA3B;;AAEA,UAAI,KAAKC,YAAT,EAAuB;AACrBe,kBAAUf,YAAV,GAAyBgB,eAAKzB,MAAL,EAAzB;AACAyB,uBAAKC,IAAL,CAAUF,UAAUf,YAApB,EAAkC,KAAKA,YAAvC;AACD;;AAED,UAAI,KAAKC,SAAT,EAAoB;AAClBc,kBAAUd,SAAV,GAAsBiB,eAAK3B,MAAL,EAAtB;AACA2B,uBAAKD,IAAL,CAAUF,UAAUd,SAApB,EAA+B,KAAKA,SAApC;AACD;;AAED,UAAI,KAAKC,MAAT,EAAiB;AACfa,kBAAUb,MAAV,GAAmBc,eAAKzB,MAAL,EAAnB;AACAyB,uBAAKC,IAAL,CAAUF,UAAUb,MAApB,EAA4B,KAAKA,MAAjC;AACD;;AAED;AACA,UAAI,CAACa,UAAUhB,SAAX,IAAwB,KAAKD,OAAjC,EAA0C;AACxCiB,kBAAUjB,OAAV,GAAoBR,eAAKC,MAAL,EAApB;AACAD,uBAAK2B,IAAL,CAAUF,UAAUjB,OAApB,EAA6B,KAAKA,OAAlC;AACD;;AAEDiB,gBAAUZ,iBAAV,GAA8B,KAAKA,iBAAnC;AACA,UAAI,CAACY,UAAUZ,iBAAX,IAAgC,KAAKC,YAAzC,EAAuD;AACrDW,kBAAUX,YAAV,GAAyBd,eAAKC,MAAL,EAAzB;AACAD,uBAAK2B,IAAL,CAAUF,UAAUX,YAApB,EAAkC,KAAKA,YAAvC;AACD;;AAED,WAAKe,eAAL,GAAuBC,IAAvB,CAA4B,YAAM;AAChC,YAAI,MAAKb,iBAAT,EAA4B;AAAA;AAAA;AAAA;;AAAA;AAC1B,kCAAsB,MAAKA,iBAA3B,mIAA8C;AAAA,kBAArCc,SAAqC;;AAC5CN,wBAAUO,kBAAV,CAA6BD,SAA7B;AACD;AAHyB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAI3B;;AAL+B;AAAA;AAAA;;AAAA;AAOhC,gCAAkB,MAAK3B,QAAvB,mIAAiC;AAAA,gBAAxBmB,KAAwB;;AAC/BE,sBAAUQ,OAAV,CAAkBV,MAAMW,KAAN,EAAlB;AACD;AAT+B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAUjC,OAVD;;AAYA,aAAOT,SAAP;AACD;;;+BAEUU,O,EAAS;AAClB,UAAI,KAAK7B,OAAL,IAAgB,KAAKW,iBAAzB,EAA4C;AAC1C,aAAKF,cAAL,GAAsBoB,OAAtB;AAD0C;AAAA;AAAA;;AAAA;AAE1C,gCAAsB,KAAKlB,iBAA3B,mIAA8C;AAAA,gBAArCc,SAAqC;;AAC5CA,sBAAUK,UAAV,CAAqBD,OAArB;AACD;AAJyC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAK3C;;AANiB;AAAA;AAAA;;AAAA;AAQlB,8BAAkB,KAAK/B,QAAvB,mIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/B,cAAIA,MAAMjB,OAAV,EAAmB;AACjBiB,kBAAMa,UAAN,CAAiBD,OAAjB;AACD;AACF;AAZiB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAanB;;;4BAEOrE,K,EAAO;AACb,UAAI,CAACA,KAAD,IAAUA,MAAMuC,MAAN,IAAgB,IAA9B,EAAoC;AAClC;AACD;;AAED,UAAIvC,MAAMuC,MAAV,EAAkB;AAChBvC,cAAMuC,MAAN,CAAagC,UAAb,CAAwBvE,KAAxB;AACD;AACDA,YAAMuC,MAAN,GAAe,IAAf;;AAEA,WAAKD,QAAL,CAAcZ,IAAd,CAAmB1B,KAAnB;;AAEA,UAAI,KAAKoD,SAAT,EAAoB;AAClBpD,cAAM0D,YAAN,CAAmB,KAAKN,SAAxB;AACD;AACF;;;+BAEUpD,K,EAAO;AAChB,UAAIwE,IAAI,KAAKlC,QAAL,CAAcmC,OAAd,CAAsBzE,KAAtB,CAAR;AACA,UAAIwE,IAAI,CAAC,CAAT,EAAY;AACV,aAAKlC,QAAL,CAAcoC,MAAd,CAAqBF,CAArB,EAAwB,CAAxB;AACAxE,cAAMuC,MAAN,GAAe,IAAf;AACD;AACF;;;iCAEY;AAAA;AAAA;AAAA;;AAAA;AACX,8BAAkB,KAAKD,QAAvB,mIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/BA,gBAAMlB,MAAN,GAAe,IAAf;AACD;AAHU;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAIX,WAAKD,QAAL,GAAgB,EAAhB;AACD;;;qCAEgB;AACf,UAAI,CAAC,KAAKS,iBAAV,EAA6B;AAC3B,aAAKA,iBAAL,GAAyB,IAAzB;AAD2B;AAAA;AAAA;;AAAA;AAE3B,gCAAkB,KAAKT,QAAvB,mIAAiC;AAAA,gBAAxBmB,KAAwB;;AAC/BA,kBAAMkB,cAAN;AACD;AAJ0B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAK5B;AACF;;;yCAEoB;AACnB,UAAI,CAAC,KAAKjC,OAAV,EAAmB;AACjB,aAAKA,OAAL,GAAeR,eAAKC,MAAL,EAAf;AACD;;AAED,UAAI,KAAKQ,SAAT,EAAoB;AAClB,aAAKA,SAAL,GAAiB,KAAjB;AACAT,uBAAK0C,4BAAL,CACE,KAAKlC,OADP,EAEE,KAAKG,SAAL,IAAkBd,gBAFpB,EAGE,KAAKa,YAAL,IAAqBf,mBAHvB,EAIE,KAAKiB,MAAL,IAAed,aAJjB;AAKD;;AAED,aAAO,KAAKU,OAAZ;AACD;;;sCAgGiB;AAAA;;AAChB,UAAImC,gBAAgB,EAApB;AADgB;AAAA;AAAA;;AAAA;AAEhB,8BAAkB,KAAKvC,QAAvB,mIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/BoB,wBAAcnD,IAAd,CAAmB+B,MAAMM,eAAN,EAAnB;AACD;AAJe;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAKhB,UAAI,KAAKZ,iBAAT,EAA4B;AAAA;AAAA;AAAA;;AAAA;AAC1B,gCAAsB,KAAKA,iBAA3B,mIAA8C;AAAA,gBAArCc,SAAqC;;AAC5CY,0BAAcnD,IAAd,CAAmBuC,UAAUF,eAAV,EAAnB;AACD;AAHyB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAI3B;AACD,aAAOe,QAAQC,GAAR,CAAYF,aAAZ,EAA2Bb,IAA3B,CAAgC;AAAA,eAAM,MAAN;AAAA,OAAhC,CAAP;AACD;;;uCAMkBC,S,EAAW;AAC5B,UAAI,CAAC,KAAKd,iBAAV,EAA6B;AAC3B,aAAKA,iBAAL,GAAyB,CAACc,SAAD,CAAzB;AACD,OAFD,MAEO;AACL,aAAKd,iBAAL,CAAuBzB,IAAvB,CAA4BuC,SAA5B;AACD;AACDA,gBAAUe,UAAV,CAAqBtD,IAArB,CAA0B,IAA1B;AACD;;;0CAEqBuC,S,EAAW;AAC/B,UAAI,CAAC,KAAKd,iBAAV,EAA6B;AAC3B;AACD;;AAED,UAAI8B,QAAQ,KAAK9B,iBAAL,CAAuB6B,UAAvB,CAAkCP,OAAlC,CAA0CR,SAA1C,CAAZ;AACA,UAAIgB,QAAQ,CAAC,CAAb,EAAgB;AACd,aAAK9B,iBAAL,CAAuB6B,UAAvB,CAAkCN,MAAlC,CAAyCO,KAAzC,EAAgD,CAAhD;;AAEAA,gBAAQhB,UAAUe,UAAV,CAAqBP,OAArB,CAA6B,IAA7B,CAAR;AACA,YAAIQ,QAAQ,CAAC,CAAb,EAAgB;AACdhB,oBAAUe,UAAV,CAAqBN,MAArB,CAA4BO,KAA5B,EAAmC,CAAnC;AACD;;AAED,YAAI,CAAC,KAAK9B,iBAAL,CAAuBlC,MAA5B,EAAoC;AAClC,eAAKkC,iBAAL,GAAyB,IAAzB;AACD;AACF;AACF;;;4CAEuB;AACtB,UAAI,KAAKA,iBAAT,EAA4B;AAAA;AAAA;AAAA;;AAAA;AAC1B,iCAAsB,KAAKA,iBAA3B,wIAA8C;AAAA,gBAArCc,SAAqC;;AAC5C,gBAAIgB,QAAQhB,UAAUe,UAAV,CAAqBP,OAArB,CAA6B,IAA7B,CAAZ;AACA,gBAAIQ,QAAQ,CAAC,CAAb,EAAgB;AACdhB,wBAAUe,UAAV,CAAqBN,MAArB,CAA4BO,KAA5B,EAAmC,CAAnC;AACD;AACF;AANyB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAO1B,aAAK9B,iBAAL,GAAyB,IAAzB;AACD;AACF;;;2CAEsB+B,G,EAAK;AAC1B,UAAI,KAAK/B,iBAAT,EAA4B;AAC1B,YAAIgC,WAAW,IAAf;AAD0B;AAAA;AAAA;;AAAA;AAE1B,iCAAsB,KAAKhC,iBAA3B,wIAA8C;AAAA,gBAArCc,SAAqC;;AAC5C,gBAAIA,UAAUmB,IAAd,EAAoB;AAClB,kBAAI,CAACD,QAAL,EAAe;AACbjD,+BAAKmD,MAAL,CAAYpD,YAAZ,EAA0B,KAAKqD,WAA/B;AACApD,+BAAKqD,QAAL,CAActD,YAAd,EAA4BA,YAA5B,EAA0CiD,IAAIM,eAA9C;AACAL,2BAAW,IAAIM,QAAJ,CAAQxD,YAAR,CAAX;AACD;AACD,kBAAIyD,eAAeP,SAASQ,cAAT,CAAwB1B,UAAUmB,IAAlC,EAAwCnB,UAAU2B,IAAlD,CAAnB;AACA,kBAAIF,YAAJ,EAAkB;AAChB9B,+BAAKiC,aAAL,CAAmBH,YAAnB,EAAiCA,YAAjC,EAA+C,KAAKJ,WAApD;AACA,uBAAOI,YAAP;AACD;AACF;AACF;AAfyB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAgB3B;AAjByB;AAAA;AAAA;;AAAA;AAkB1B,+BAAkB,KAAKpD,QAAvB,wIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/B,cAAIiC,gBAAejC,MAAMqC,sBAAN,CAA6BZ,GAA7B,CAAnB;AACA,cAAIQ,aAAJ,EAAkB;AAChB,mBAAOA,aAAP;AACD;AACF;AAvByB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAwB1B,aAAO,IAAP;AACD;;;4BAEOR,G,EAAK;AACX,UAAI,KAAKzC,UAAL,IAAmB,KAAKD,OAA5B,EAAqC;AACnC,YAAIkD,eAAe,KAAKI,sBAAL,CAA4BZ,GAA5B,CAAnB;;AAEA,YAAIQ,YAAJ,EAAkB;AAChB,cAAIK,SAASnC,eAAKoC,UAAL,CAAgBd,IAAIa,MAAJ,CAAWE,CAA3B,EAA8Bf,IAAIa,MAAJ,CAAWG,CAAzC,EAA4ChB,IAAIa,MAAJ,CAAWI,CAAvD,CAAb;AACA,iBAAO;AACLC,kBAAM,IADD;AAELV,0BAAcA,YAFT;AAGLW,sBAAUzC,eAAKyC,QAAL,CAAcN,MAAd,EAAsBL,YAAtB;AAHL,WAAP;AAKD;AACD,eAAO,IAAP;AACD;;AAED,UAAIY,SAAS,IAAb;AAfW;AAAA;AAAA;;AAAA;AAgBX,+BAAkB,KAAKhE,QAAvB,wIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/B,cAAI8C,cAAc9C,MAAM+C,OAAN,CAActB,GAAd,CAAlB;AACA,cAAIqB,WAAJ,EAAiB;AACf,gBAAI,CAACD,MAAD,IAAWA,OAAOD,QAAP,GAAkBE,YAAYF,QAA7C,EAAuD;AACrDC,uBAASC,WAAT;AACD;AACF;AACF;AAvBU;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAwBX,aAAOD,MAAP;AACD;;;6BAEQtG,K,EAAO;AACd,WAAKqD,cAAL,GAAsBrD,KAAtB;AACD;;;;;AAMD;mCACe;AACb,UAAI,KAAKqD,cAAT,EAAyB;AACvB,aAAKA,cAAL;AACD;AACF;;AAED;;;;mCACe,CAEd;;AAED;;;;iCACa,CAEZ;;;4BAEOoD,S,EAAWC,U,EAAY;AAC7B,WAAKC,QAAL,CAAcF,SAAd,EAAyBC,UAAzB;;AAD6B;AAAA;AAAA;;AAAA;AAG7B,+BAAkB,KAAKpE,QAAvB,wIAAiC;AAAA,cAAxBmB,KAAwB;;AAC/BA,gBAAMmD,OAAN,CAAcH,SAAd,EAAyBC,UAAzB;AACD;AAL4B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAM9B;;AAED;;;;6BACSD,S,EAAWC,U,EAAY,CAE/B;;;sBAlPU1G,K,EAAO;AAChB,UAAIA,KAAJ,EAAW;AACT,YAAI,CAAC,KAAK0C,OAAV,EAAmB;AACjB,eAAKA,OAAL,GAAeR,eAAKC,MAAL,EAAf;AACD;AACDD,uBAAK2B,IAAL,CAAU,KAAKnB,OAAf,EAAwB1C,KAAxB;AACD,OALD,MAKO;AACL,aAAK0C,OAAL,GAAe,IAAf;AACD;AACD,WAAKiC,cAAL;AACA,WAAKhC,SAAL,GAAiB,KAAjB;AACA,WAAKC,YAAL,GAAoB,IAApB;AACA,WAAKC,SAAL,GAAiB,IAAjB;AACA,WAAKC,MAAL,GAAc,IAAd;AACD,K;wBAEY;AACX,WAAK6B,cAAL;;AAEA,aAAO,KAAKkC,kBAAL,EAAP;AACD;;;wBAEiB;AAChB,UAAI,CAAC,KAAK7D,YAAV,EAAwB;AACtB,aAAKD,iBAAL,GAAyB,IAAzB;AACA,aAAKC,YAAL,GAAoBd,eAAKC,MAAL,EAApB;AACD;;AAED,UAAI,KAAKY,iBAAL,IAA0B,KAAKJ,SAAnC,EAA8C;AAC5C,YAAI,KAAKJ,MAAT,EAAiB;AACf;AACA;AACAL,yBAAK4E,GAAL,CAAS,KAAK9D,YAAd,EAA4B,KAAKT,MAAL,CAAY+C,WAAxC,EAAqD,KAAKuB,kBAAL,EAArD;AACD,SAJD,MAIO;AACL3E,yBAAK2B,IAAL,CAAU,KAAKb,YAAf,EAA6B,KAAK6D,kBAAL,EAA7B;AACD;AACD,aAAK9D,iBAAL,GAAyB,KAAzB;AACD;;AAED,aAAO,KAAKC,YAAZ;AACD;;AAED;;;;sBACgBhD,K,EAAO;AACrB,UAAIA,SAAS,IAAb,EAAmB;AACjB,aAAK2C,SAAL,GAAiB,IAAjB;AACA,aAAKgC,cAAL;AACD;AACD,WAAK/B,YAAL,GAAoB5C,KAApB;AACD,K;wBAEiB;AAChB,WAAK2C,SAAL,GAAiB,IAAjB;AACA,WAAKgC,cAAL;AACA,UAAI,CAAC,KAAK/B,YAAV,EAAwB;AACtB,aAAKA,YAAL,GAAoBgB,eAAKQ,KAAL,CAAWvC,mBAAX,CAApB;AACD;AACD,aAAO,KAAKe,YAAZ;AACD;;;sBAEY5C,K,EAAO;AAClB,UAAIA,SAAS,IAAb,EAAmB;AACjB,aAAK2C,SAAL,GAAiB,IAAjB;AACA,aAAKgC,cAAL;AACD;AACD,WAAK9B,SAAL,GAAiB7C,KAAjB;AACD,K;wBAEc;AACb,WAAK2C,SAAL,GAAiB,IAAjB;AACA,WAAKgC,cAAL;AACA,UAAI,CAAC,KAAK9B,SAAV,EAAqB;AACnB,aAAKA,SAAL,GAAiBiB,eAAKM,KAAL,CAAWrC,gBAAX,CAAjB;AACD;AACD,aAAO,KAAKc,SAAZ;AACD;;;sBAES7C,K,EAAO;AACf,UAAIA,SAAS,IAAb,EAAmB;AACjB,aAAK2C,SAAL,GAAiB,IAAjB;AACA,aAAKgC,cAAL;AACD;AACD,WAAK7B,MAAL,GAAc9C,KAAd;AACD,K;wBAEW;AACV,WAAK2C,SAAL,GAAiB,IAAjB;AACA,WAAKgC,cAAL;AACA,UAAI,CAAC,KAAK7B,MAAV,EAAkB;AAChB,aAAKA,MAAL,GAAcc,eAAKQ,KAAL,CAAWpC,aAAX,CAAd;AACD;AACD,aAAO,KAAKc,MAAZ;AACD;;;wBAesB;AACrB,aAAO,KAAKK,iBAAZ;AACD;;;wBAqGmB;AAClB,aAAO,KAAKE,cAAZ;AACD;;;;;;;;;;;;;;;;;;;;;;;;;AC9YH;;0JApBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;IAIa0D,kB,WAAAA,kB,GACX,4BAAY1E,IAAZ,EAAkB2E,MAAlB,EAA0BC,cAA1B,EAA0CC,aAA1C,EAAyDC,MAAzD,EAAiEC,UAAjE,EAA6E;AAAA;;AAC3E,OAAK/E,IAAL,GAAYA,IAAZ;AACA,OAAK2E,MAAL,GAAcA,MAAd;AACA,OAAKC,cAAL,GAAsBA,kBAAkB,CAAxC;AACA,OAAKC,aAAL,GAAqBA,iBAAiB,IAAtC,CAJ2E,CAI/B;AAC5C,OAAKC,MAAL,GAAcA,UAAU,CAAxB;AACA,OAAKC,UAAL,GAAkBA,cAAc,CAAhC;AACA,OAAKC,UAAL,GAAkB,KAAlB;AACD,C;;IAGUC,S,WAAAA,S;AACX,qBAAYC,UAAZ,EAAwBC,YAAxB,EAAsCC,IAAtC,EAA4C;AAAA;;AAC1C,SAAKF,UAAL,GAAkBA,cAAc,EAAhC;AACA,SAAKC,YAAL,GAAoBA,gBAAgB,CAApC;AACA,SAAKC,IAAL,GAAYA,QAAQ,CAApB,CAH0C,CAGnB;AACvB,SAAKC,WAAL,GAAmB,IAAnB;AACA,SAAKC,eAAL,GAAuB,CAAvB;AACA,SAAKC,SAAL,GAAiB,CAAjB;AACA,SAAKxC,IAAL,GAAY,IAAZ;AACA,SAAKQ,IAAL,GAAY,IAAZ;AACD;;;;mCAEc8B,W,EAAaN,U,EAAYQ,S,EAAW;AACjD,WAAKF,WAAL,GAAmBA,WAAnB;AACA,WAAKC,eAAL,GAAuBP,cAAc,CAArC;AACA,WAAKQ,SAAL,GAAiBA,aAAa,IAA9B,CAHiD,CAGb;AACrC;;;8BAESC,G,EAAKC,G,EAAK;AAClB,WAAK1C,IAAL,GAAYxB,eAAKQ,KAAL,CAAWyD,GAAX,CAAZ;AACA,WAAKjC,IAAL,GAAYhC,eAAKQ,KAAL,CAAW0D,GAAX,CAAZ;AACD;;;;;;;;;;;;;;;;;;;;;;;;;;ACvDH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;IAEaC,O,WAAAA,O;AACX,mBAAYC,EAAZ,EAAgBC,OAAhB,EAAyBC,OAAzB,EAAkCC,SAAlC,EAA6CC,OAA7C,EAAsD;AAAA;;AACpD,SAAKC,GAAL,GAAWL,EAAX;AACA,SAAKM,OAAL,GAAeN,GAAGO,aAAH,EAAf;AACA,SAAKC,MAAL,GAAc,IAAd;AACA,SAAK7G,OAAL,GAAe,IAAf;AACA,SAAKyG,OAAL,GAAe,EAAf;;AAEA,SAAKK,SAAL,GAAiB,IAAjB;AACA,SAAKC,iBAAL,GAAyB,EAAzB;;AAEA,QAAIC,gBAAgB,EAApB;AACA,QAAIP,OAAJ,EAAa;AACX,WAAK,IAAIQ,MAAT,IAAmBR,OAAnB,EAA4B;AAC1B,aAAKA,OAAL,CAAaQ,MAAb,IAAuBR,QAAQQ,MAAR,CAAvB;AACAD,sCAA4BC,MAA5B,SAAsCR,QAAQQ,MAAR,CAAtC;AACD;AACF;;AAED,SAAKC,WAAL,GAAmBb,GAAGc,YAAH,CAAgBd,GAAGe,aAAnB,CAAnB;AACAf,OAAGgB,YAAH,CAAgB,KAAKV,OAArB,EAA8B,KAAKO,WAAnC;AACAb,OAAGiB,YAAH,CAAgB,KAAKJ,WAArB,EAAkCF,gBAAgBV,OAAlD;AACAD,OAAGkB,aAAH,CAAiB,KAAKL,WAAtB;;AAEA,SAAKM,WAAL,GAAmBnB,GAAGc,YAAH,CAAgBd,GAAGoB,eAAnB,CAAnB;AACApB,OAAGgB,YAAH,CAAgB,KAAKV,OAArB,EAA8B,KAAKa,WAAnC;AACAnB,OAAGiB,YAAH,CAAgB,KAAKE,WAArB,EAAkCR,gBAAgBT,OAAlD;AACAF,OAAGkB,aAAH,CAAiB,KAAKC,WAAtB;;AAEA,QAAIhB,SAAJ,EAAe;AACb,WAAKK,MAAL,GAAc,EAAd;AACA,WAAK,IAAIa,UAAT,IAAuBlB,SAAvB,EAAkC;AAChCH,WAAGsB,kBAAH,CAAsB,KAAKhB,OAA3B,EAAoCH,UAAUkB,UAAV,CAApC,EAA2DA,UAA3D;AACA,aAAKb,MAAL,CAAYa,UAAZ,IAA0BlB,UAAUkB,UAAV,CAA1B;AACD;AACF;;AAEDrB,OAAGuB,WAAH,CAAe,KAAKjB,OAApB;AACD;;;;8BAESkB,Q,EAAU;AAClB,WAAKd,iBAAL,CAAuBhH,IAAvB,CAA4B8H,QAA5B;AACD;;;0BAEK;AACJ,UAAIxB,KAAK,KAAKK,GAAd;;AAEA;AACA;AACA,UAAI,KAAKI,SAAT,EAAoB;AAClB,aAAKA,SAAL,GAAiB,KAAjB;AACA,YAAI,CAACT,GAAGyB,mBAAH,CAAuB,KAAKnB,OAA5B,EAAqCN,GAAG0B,WAAxC,CAAL,EAA2D;AACzD,cAAI,CAAC1B,GAAG2B,kBAAH,CAAsB,KAAKd,WAA3B,EAAwCb,GAAG4B,cAA3C,CAAL,EAAiE;AAC/DC,oBAAQC,KAAR,CAAc,kCAAkC9B,GAAG+B,gBAAH,CAAoB,KAAKlB,WAAzB,CAAhD;AACD,WAFD,MAEO,IAAI,CAACb,GAAG2B,kBAAH,CAAsB,KAAKR,WAA3B,EAAwCnB,GAAG4B,cAA3C,CAAL,EAAiE;AACtEC,oBAAQC,KAAR,CAAc,oCAAoC9B,GAAG+B,gBAAH,CAAoB,KAAKZ,WAAzB,CAAlD;AACD,WAFM,MAEA;AACLU,oBAAQC,KAAR,CAAc,yBAAyB9B,GAAGgC,iBAAH,CAAqB,KAAK1B,OAA1B,CAAvC;AACD;AACDN,aAAGiC,aAAH,CAAiB,KAAK3B,OAAtB;AACA,eAAKA,OAAL,GAAe,IAAf;AACD,SAVD,MAUO;AACL,cAAI,CAAC,KAAKE,MAAV,EAAkB;AAChB,iBAAKA,MAAL,GAAc,EAAd;AACA,gBAAI0B,cAAclC,GAAGyB,mBAAH,CAAuB,KAAKnB,OAA5B,EAAqCN,GAAGmC,iBAAxC,CAAlB;AACA,iBAAK,IAAI3F,IAAI,CAAb,EAAgBA,IAAI0F,WAApB,EAAiC1F,GAAjC,EAAsC;AACpC,kBAAI4F,aAAapC,GAAGqC,eAAH,CAAmB,KAAK/B,OAAxB,EAAiC9D,CAAjC,CAAjB;AACA,mBAAKgE,MAAL,CAAY4B,WAAW/H,IAAvB,IAA+B2F,GAAGsC,iBAAH,CAAqB,KAAKhC,OAA1B,EAAmC8B,WAAW/H,IAA9C,CAA/B;AACD;AACF;;AAED,eAAKV,OAAL,GAAe,EAAf;AACA,cAAI4I,eAAevC,GAAGyB,mBAAH,CAAuB,KAAKnB,OAA5B,EAAqCN,GAAGwC,eAAxC,CAAnB;AACA,cAAI5J,cAAc,EAAlB;AACA,eAAK,IAAI4D,KAAI,CAAb,EAAgBA,KAAI+F,YAApB,EAAkC/F,IAAlC,EAAuC;AACrC,gBAAIiG,cAAczC,GAAG0C,gBAAH,CAAoB,KAAKpC,OAAzB,EAAkC9D,EAAlC,CAAlB;AACA5D,0BAAc6J,YAAYpI,IAAZ,CAAiBsI,OAAjB,CAAyB,KAAzB,EAAgC,EAAhC,CAAd;AACA,iBAAKhJ,OAAL,CAAaf,WAAb,IAA4BoH,GAAG4C,kBAAH,CAAsB,KAAKtC,OAA3B,EAAoC1H,WAApC,CAA5B;AACD;AACF;AACDoH,WAAG6C,YAAH,CAAgB,KAAKhC,WAArB;AACAb,WAAG6C,YAAH,CAAgB,KAAK1B,WAArB;AACD;;AAEDnB,SAAG8C,UAAH,CAAc,KAAKxC,OAAnB;;AAEA,UAAI,KAAKI,iBAAL,CAAuBzH,MAA3B,EAAmC;AAAA;AAAA;AAAA;;AAAA;AACjC,+BAAqB,KAAKyH,iBAA1B,8HAA6C;AAAA,gBAApCc,QAAoC;;AAC3CA,qBAAS,IAAT;AACD;AAHgC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAIjC,aAAKd,iBAAL,GAAyB,EAAzB;AACD;AACF;;;;;;;;;;;;;;;;;;;;;;;qjBChHH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;QA2DgBqC,kB,GAAAA,kB;;AAzDhB;;AACA;;AACA;;AACA;;AACA;;;;AAEO,IAAMC,0BAAS;AACpBC,YAAU,CADU;AAEpBC,UAAQ,CAFY;AAGpBC,WAAS,CAHW;AAIpBC,cAAY,CAJQ;AAKpBC,cAAY,CALQ;AAMpBC,WAAS;AANW,CAAf;;AASA,IAAMC,oCAAc;AACzBN,YAAU,MADe;AAEzBC,UAAQ,MAFiB;AAGzBC,WAAS,MAHgB;AAIzBC,cAAY,MAJa;AAKzBC,cAAY,MALa;AAMzBC,WAAS;AANgB,CAApB;;AASP,IAAMlN,KAAKC,qBAAX,C,CAAkC;;AAElC,IAAMmN,gBAAgB,IAAI1J,YAAJ,CAAiB,CAAC,CAAC,GAAF,EAAO,CAAC,GAAR,EAAa,CAAC,GAAd,CAAjB,CAAtB;AACA,IAAM2J,kBAAkB,IAAI3J,YAAJ,CAAiB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,CAAjB,CAAxB;;AAEA,IAAM4J,kBAAkB,IAAIC,MAAJ,CAAW,uCAAX,CAAxB;;AAEA,IAAMC,6LAAN;;AAQA,IAAMC,4IAAN;;AAOA,IAAMC,iFAAN;;AAMA,SAASC,YAAT,CAAsBC,CAAtB,EAAyB;AACvB,SAAO,CAACA,IAAKA,IAAI,CAAV,MAAkB,CAAzB;AACD;;AAED;AACO,SAASjB,kBAAT,CAA4BkB,SAA5B,EAAuC;AAC5CA,cAAYA,aAAa,EAACC,OAAO,KAAR,EAAzB;;AAEA,MAAIC,cAAcC,SAASC,aAAT,CAAuB,QAAvB,CAAlB;AACA,MAAIC,eAAeL,UAAUM,MAAV,GAAmB,CAAC,QAAD,CAAnB,GAAgC,CAAC,OAAD,EAAU,oBAAV,CAAnD;AACA,MAAIC,UAAU,IAAd;;AAL4C;AAAA;AAAA;;AAAA;AAO5C,yBAAwBF,YAAxB,8HAAsC;AAAA,UAA7BG,WAA6B;;AACpCD,gBAAUL,YAAYO,UAAZ,CAAuBD,WAAvB,EAAoCR,SAApC,CAAV;AACA,UAAIO,OAAJ,EAAa;AACX;AACD;AACF;AAZ2C;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAc5C,MAAI,CAACA,OAAL,EAAc;AACZ,QAAIG,YAAaV,UAAUM,MAAV,GAAmB,SAAnB,GAA+B,OAAhD;AACA1C,YAAQC,KAAR,CAAc,mCAAmC6C,SAAnC,GAA+C,GAA7D;AACA,WAAO,IAAP;AACD;;AAED,SAAOH,OAAP;AACD;;IAEYI,U,WAAAA,U;AACX,sBAAYC,gBAAZ,EAA8BC,UAA9B,EAAyE;AAAA,QAA/BC,QAA+B,uEAApB,IAAoB;AAAA,QAAdC,GAAc,uEAAR,MAAQ;;AAAA;;AACvE,SAAKH,gBAAL,GAAwBA,gBAAxB;AACA,SAAKC,UAAL,GAAkBA,UAAlB;AACA,SAAKC,QAAL,GAAgBA,QAAhB;AACA;AACA,SAAKE,IAAL,GAAYD,GAAZ;AACA,SAAKE,SAAL,GAAkBF,OAAO,MAAP,GAAgB,CAAhB,GAAoB,CAAtC;AACD;;;;wBAES;AACR,aAAO,KAAKC,IAAZ;AACD,K;sBAEOjN,K,EAAO;AACb,WAAKiN,IAAL,GAAYjN,KAAZ;AACA,WAAKkN,SAAL,GAAkBlN,SAAS,MAAT,GAAkB,CAAlB,GAAsB,CAAxC;AACD;;;wBAEc;AACb,aAAO,KAAKkN,SAAZ;AACD;;;;;;IAGGC,Y;AACJ,wBAAYC,MAAZ,EAAoBC,KAApB,EAA2BrG,MAA3B,EAA+C;AAAA;;AAAA,QAAZ/F,MAAY,uEAAH,CAAG;;AAAA;;AAC7C,SAAKqM,OAAL,GAAeF,MAAf;AACA,SAAKG,MAAL,GAAcF,KAAd;AACA,SAAKlM,OAAL,GAAeF,MAAf;AACA,QAAI+F,kBAAkBlC,OAAtB,EAA+B;AAC7B,WAAK0I,OAAL,GAAe,IAAf;AACA,WAAKC,QAAL,GAAgBzG,OAAOhD,IAAP,CAAY,UAACgD,MAAD,EAAY;AACtC,cAAKwG,OAAL,GAAexG,MAAf;AACA,eAAO,KAAP;AACD,OAHe,CAAhB;AAID,KAND,MAMO;AACL,WAAKwG,OAAL,GAAexG,MAAf;AACA,WAAKyG,QAAL,GAAgB3I,QAAQ4I,OAAR,CAAgB,IAAhB,CAAhB;AACD;AACF;;;;sCAEiB;AAChB,aAAO,KAAKD,QAAZ;AACD;;;;;;IAGGE,wB,GACJ,kCAAYC,kBAAZ,EAAgC;AAAA;;AAC9B,OAAKC,aAAL,GAAqB7C,OAAO4C,mBAAmBvL,IAA1B,CAArB;AACA,OAAKyL,eAAL,GAAuBF,mBAAmB3G,cAA1C;AACA,OAAK8G,cAAL,GAAsBH,mBAAmB1G,aAAzC;AACA,OAAK8G,OAAL,GAAeJ,mBAAmBzG,MAAlC;AACA,OAAK8G,WAAL,GAAmBL,mBAAmBxG,UAAtC;AACA,OAAK8G,WAAL,GAAmBN,mBAAmBvG,UAAtC;AACD,C;;IAGG8G,8B,GACJ,wCAAYnH,MAAZ,EAAoB;AAAA;;AAClB,OAAKwG,OAAL,GAAexG,MAAf;AACA,OAAKoH,WAAL,GAAmB,EAAnB;AACD,C;;IAGGC,e;AACJ,2BAAYpK,SAAZ,EAAuB;AAAA;;AACrB,SAAKhB,cAAL,GAAsB,CAAtB;AACA,SAAK+B,UAAL,GAAkB,EAAlB;AACA,SAAKsJ,SAAL,GAAiB,IAAjB;;AAEA,SAAKC,YAAL,CAAkBtK,SAAlB;AACD;;;;iCAEYA,S,EAAW;AACtB,WAAKuK,KAAL,GAAavK,UAAUwD,IAAvB;AACA,WAAKgH,aAAL,GAAqBxK,UAAUuD,YAA/B;AACA,WAAKiG,QAAL,GAAgB,IAAhB;AACA,WAAKiB,IAAL,GAAY,IAAZ;AACA,WAAKC,SAAL,GAAiB,KAAjB;AACA,WAAKC,iBAAL,GAAyB,EAAzB;AACA,WAAKC,cAAL,GAAsB,CAAtB;;AAPsB;AAAA;AAAA;;AAAA;AAStB,8BAAsB5K,UAAUsD,UAAhC,mIAA4C;AAAA,cAAnCuH,SAAmC;;AAC1C,eAAKD,cAAL,IAAuBtD,YAAYuD,UAAUzM,IAAtB,CAAvB;AACA,cAAI0M,kBAAkB,IAAIpB,wBAAJ,CAA6BmB,SAA7B,CAAtB;AACA,cAAIE,cAAc,KAAlB;AAH0C;AAAA;AAAA;;AAAA;AAI1C,kCAA4B,KAAKJ,iBAAjC,mIAAoD;AAAA,kBAA3CK,eAA2C;;AAClD,kBAAIA,gBAAgBzB,OAAhB,IAA2BsB,UAAU9H,MAAzC,EAAiD;AAC/CiI,gCAAgBb,WAAhB,CAA4B1M,IAA5B,CAAiCqN,eAAjC;AACAC,8BAAc,IAAd;AACA;AACD;AACF;AAVyC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAW1C,cAAI,CAACA,WAAL,EAAkB;AAChB,gBAAIC,mBAAkB,IAAId,8BAAJ,CAAmCW,UAAU9H,MAA7C,CAAtB;AACAiI,6BAAgBb,WAAhB,CAA4B1M,IAA5B,CAAiCqN,eAAjC;AACA,iBAAKH,iBAAL,CAAuBlN,IAAvB,CAA4BuN,gBAA5B;AACD;AACF;AAzBqB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AA2BtB,WAAKC,YAAL,GAAoB,IAApB;AACA,WAAKC,gBAAL,GAAwB,CAAxB;AACA,WAAKC,UAAL,GAAkB,CAAlB;;AAEA,UAAInL,UAAUyD,WAAd,EAA2B;AACzB,aAAKyH,gBAAL,GAAwBlL,UAAU0D,eAAlC;AACA,aAAKyH,UAAL,GAAkBnL,UAAU2D,SAA5B;AACA,aAAKsH,YAAL,GAAoBjL,UAAUyD,WAA9B;AACD;;AAED,UAAIzD,UAAUmB,IAAd,EAAoB;AAClB,aAAKA,IAAL,GAAYxB,eAAKQ,KAAL,CAAWH,UAAUmB,IAArB,CAAZ;AACA,aAAKQ,IAAL,GAAYhC,eAAKQ,KAAL,CAAWH,UAAU2B,IAArB,CAAZ;AACD,OAHD,MAGO;AACL,aAAKR,IAAL,GAAY,IAAZ;AACA,aAAKQ,IAAL,GAAY,IAAZ;AACD;;AAED,UAAI,KAAK0I,SAAL,IAAkB,IAAtB,EAA4B;AAC1B,aAAKvK,eAAL,GAD0B,CACF;AACzB;AACF;;;sCAEiBsL,Q,EAAU;AAC1B,WAAKf,SAAL,GAAiBe,QAAjB;AACA,WAAK5B,QAAL,GAAgB,IAAhB;AACA,WAAKkB,SAAL,GAAiB,KAAjB;;AAEA,UAAI,KAAKL,SAAL,IAAkB,IAAtB,EAA4B;AAC1B,aAAKvK,eAAL,GAD0B,CACF;AACzB;AACF;;;+BAEUM,O,EAAS;AAClB,UAAI,KAAKsK,SAAL,IAAkB,KAAK1L,cAAL,IAAuBoB,OAA7C,EAAsD;AACpD,YAAI,KAAKiK,SAAT,EAAoB;AAClB,cAAI,CAAC,KAAKA,SAAL,CAAehK,UAAf,CAA0BD,OAA1B,CAAL,EAAyC;AACvC;AACD;AACF;AACD,aAAKpB,cAAL,GAAsBoB,OAAtB;AACD;AACF;;;sCAUiB;AAAA;;AAChB,UAAI,CAAC,KAAKoJ,QAAV,EAAoB;AAClB,YAAI,CAAC,KAAKa,SAAV,EAAqB;AACnB,iBAAOxJ,QAAQwK,MAAR,CAAe,0CAAf,CAAP;AACD;;AAED,YAAIC,qBAAqB,EAAzB;;AALkB;AAAA;AAAA;;AAAA;AAOlB,gCAA4B,KAAKX,iBAAjC,mIAAoD;AAAA,gBAA3CK,eAA2C;;AAClD,gBAAI,CAACA,gBAAgBzB,OAAhB,CAAwBA,OAA7B,EAAsC;AACpC+B,iCAAmB7N,IAAnB,CAAwBuN,gBAAgBzB,OAAhB,CAAwBC,QAAhD;AACD;AACF;AAXiB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAalB,YAAI,KAAKyB,YAAL,IAAqB,CAAC,KAAKA,YAAL,CAAkB1B,OAA5C,EAAqD;AACnD+B,6BAAmB7N,IAAnB,CAAwB,KAAKwN,YAAL,CAAkBzB,QAA1C;AACD;;AAED,aAAKA,QAAL,GAAgB3I,QAAQC,GAAR,CAAYwK,kBAAZ,EAAgCvL,IAAhC,CAAqC,YAAM;AACzD,iBAAK2K,SAAL,GAAiB,IAAjB;AACA,iBAAO,MAAP;AACD,SAHe,CAAhB;AAID;AACD,aAAO,KAAKlB,QAAZ;AACD;;;wBAhCc;AACb,aAAO,KAAKa,SAAL,CAAekB,kBAAtB;AACD;;;wBAEc;AACb,aAAO,KAAKlB,SAAL,CAAemB,mBAAtB;AACD;;;;;;IA6BUC,a,WAAAA,a;AACX,yBAAYC,OAAZ,EAAqB;AAAA;;AACnB,SAAK7O,QAAL,GAAgB6O,OAAhB;AACA,SAAKhB,SAAL,GAAiB,KAAjB;AACA,SAAK1L,cAAL,GAAsB,CAAtB;AACA,SAAK2M,eAAL,GAAuB,IAAvB;AACD;;;;+BAEUvL,O,EAAS;AAClB,UAAI,KAAKuL,eAAL,IAAwB,KAAK3M,cAAL,IAAuBoB,OAAnD,EAA4D;AAC1D,aAAKpB,cAAL,GAAsBoB,OAAtB;AACA,aAAKuL,eAAL,CAAqB,IAArB;AACD;AACF;;;;;;AAGH,IAAMC,gBAAgB3N,eAAKC,MAAL,EAAtB;;AAEA,SAAS2N,MAAT,CAAgB9H,EAAhB,EAAoB+H,MAApB,EAA4BC,GAA5B,EAAiCC,SAAjC,EAA4CpQ,KAA5C,EAAmD;AACjD,MAAIqQ,SAAS,CAACrQ,QAAQmQ,GAAT,KAAiBC,YAAYD,GAA7B,CAAb;AACA,MAAI,CAACE,MAAL,EAAa;AACX;AACD;;AAED,MAAIA,SAAS,CAAb,EAAgB;AACdlI,OAAGmI,MAAH,CAAUJ,MAAV;AACD,GAFD,MAEO;AACL/H,OAAGoI,OAAH,CAAWL,MAAX;AACD;AACF;;IAEKM,qB;AACJ,iCAAY/M,QAAZ,EAAsBgN,eAAtB,EAAuCrL,KAAvC,EAA8C;AAAA;;AAC5C,SAAK7B,SAAL,GAAiBE,QAAjB;AACA,SAAKzC,YAAL,GAAoByP,gBAAgBzP,YAApC;AACA,SAAK0P,cAAL,GAAsBjN,SAASkN,iBAAT,CAA2BF,gBAAgBxP,QAA3C,CAAtB;AACA,SAAK2P,MAAL,GAAcxL,KAAd;AACD;;;;sBAEWjF,K,EAAO;AACjB,WAAKuQ,cAAL,GAAsB,KAAKnN,SAAL,CAAeoN,iBAAf,CAAiCxQ,KAAjC,CAAtB;AACD;;;;;;IAGG0Q,qB;AACJ,iCAAYC,eAAZ,EAA6B;AAAA;;AAC3B,SAAK9P,YAAL,GAAoB8P,gBAAgB9P,YAApC;AACA,SAAK+P,QAAL,GAAgB,IAAhB;AACA,SAAKzP,OAAL,GAAewP,gBAAgBxP,OAA/B;AACA,QAAIwP,gBAAgBzP,MAAhB,YAAkCE,KAAtC,EAA6C;AAC3C,WAAKF,MAAL,GAAc,IAAIY,YAAJ,CAAiB6O,gBAAgBzP,MAAjC,CAAd;AACD,KAFD,MAEO;AACL,WAAKA,MAAL,GAAc,IAAIY,YAAJ,CAAiB,CAAC6O,gBAAgBzP,MAAjB,CAAjB,CAAd;AACD;AACF;;;;sBAESlB,K,EAAO;AACf,UAAI,KAAKkB,MAAL,CAAYD,MAAZ,IAAsB,CAA1B,EAA6B;AAC3B,aAAKC,MAAL,CAAY,CAAZ,IAAiBlB,KAAjB;AACD,OAFD,MAEO;AACL,aAAK,IAAIwE,IAAI,CAAb,EAAgBA,IAAI,KAAKtD,MAAL,CAAYD,MAAhC,EAAwC,EAAEuD,CAA1C,EAA6C;AAC3C,eAAKtD,MAAL,CAAYsD,CAAZ,IAAiBxE,MAAMwE,CAAN,CAAjB;AACD;AACF;AACF;;;;;;IAGGqM,c;AACJ,0BAAYvN,QAAZ,EAAsB+L,QAAtB,EAAgC/G,OAAhC,EAAyC;AAAA;;AACvC,SAAKwI,QAAL,GAAgBxI,OAAhB;AACA,SAAKnI,MAAL,GAAckP,SAASxP,KAAT,CAAeM,MAA7B;AACA,SAAK8C,cAAL,GAAsB,CAAtB;AACA,SAAK8N,uBAAL,GAA+B,KAA/B;;AAEA,SAAKvB,kBAAL,GAA0B,EAA1B;AACA,SAAKjO,SAAL,GAAiB,EAAjB;AACA,SAAK,IAAIiD,IAAI,CAAb,EAAgBA,IAAI6K,SAAS9N,SAAT,CAAmBN,MAAvC,EAA+C,EAAEuD,CAAjD,EAAoD;AAClD,UAAIwM,gBAAgB,IAAIX,qBAAJ,CAA0B/M,QAA1B,EAAoC+L,SAAS9N,SAAT,CAAmBiD,CAAnB,CAApC,EAA2DA,CAA3D,CAApB;AACA,WAAKjD,SAAL,CAAeG,IAAf,CAAoBsP,aAApB;AACA,WAAKxB,kBAAL,CAAwBwB,cAAcnQ,YAAtC,IAAsDmQ,aAAtD;AACD;;AAED,SAAKvB,mBAAL,GAA2B,EAA3B;AACA,SAAKjO,SAAL,GAAiB,EAAjB;AAfuC;AAAA;AAAA;;AAAA;AAgBvC,4BAAoB6N,SAAS7N,SAA7B,mIAAwC;AAAA,YAA/BG,OAA+B;;AACtC,YAAIsP,gBAAgB,IAAIP,qBAAJ,CAA0B/O,OAA1B,CAApB;AACA,aAAKH,SAAL,CAAeE,IAAf,CAAoBuP,aAApB;AACA,aAAKxB,mBAAL,CAAyBwB,cAAcpQ,YAAvC,IAAuDoQ,aAAvD;AACD;AApBsC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAsBvC,SAAKC,UAAL,GAAkB,IAAlB;;AAEA,SAAKC,YAAL,GAAoB9B,SAAS/N,WAA7B;AACA,QAAI,KAAK6P,YAAL,IAAqB5R,uBAAaK,OAAtC,EAA+C;AAC7C,UAAI,KAAKO,MAAL,GAAc7B,cAAIE,KAAtB,EAA6B;AAC3B,aAAK2S,YAAL,GAAoB5R,uBAAaG,WAAjC;AACD,OAFD,MAEO;AACL,aAAKyR,YAAL,GAAoB5R,uBAAaC,MAAjC;AACD;AACF;AACF;;;;yBAEIwI,E,EAAI;AACP;AACA;AACA,UAAI,KAAKkJ,UAAT,EAAqB;AACnB,aAAK,IAAI1M,IAAI,CAAb,EAAgBA,IAAI,KAAKjD,SAAL,CAAeN,MAAnC,GAA4C;AAC1C,cAAIQ,UAAU,KAAKF,SAAL,CAAeiD,CAAf,CAAd;AACA,cAAI,CAAC,KAAKsM,QAAL,CAAcnP,OAAd,CAAsBF,QAAQZ,YAA9B,CAAL,EAAkD;AAChD,iBAAKU,SAAL,CAAemD,MAAf,CAAsBF,CAAtB,EAAyB,CAAzB;AACA;AACD;AACD,YAAEA,CAAF;AACD;;AAED,aAAK,IAAIA,KAAI,CAAb,EAAgBA,KAAI,KAAKhD,SAAL,CAAeP,MAAnC,GAA4C;AAC1C,cAAIU,UAAU,KAAKH,SAAL,CAAegD,EAAf,CAAd;AACA7C,kBAAQiP,QAAR,GAAmB,KAAKE,QAAL,CAAcnP,OAAd,CAAsBA,QAAQd,YAA9B,CAAnB;AACA,cAAI,CAACc,QAAQiP,QAAb,EAAuB;AACrB,iBAAKpP,SAAL,CAAekD,MAAf,CAAsBF,EAAtB,EAAyB,CAAzB;AACA;AACD;AACD,YAAEA,EAAF;AACD;AACD,aAAK0M,UAAL,GAAkB,KAAlB;AACD;;AAvBM;AAAA;AAAA;;AAAA;AAyBP,8BAAoB,KAAK3P,SAAzB,mIAAoC;AAAA,cAA3BE,QAA2B;;AAClCuG,aAAGoJ,aAAH,CAAiBpJ,GAAGqJ,QAAH,GAAc5P,SAAQgP,MAAvC;AACA,cAAIhP,SAAQ8O,cAAR,IAA0B9O,SAAQ8O,cAAR,CAAuB5B,SAArD,EAAgE;AAC9D3G,eAAGsJ,WAAH,CAAetJ,GAAGuJ,UAAlB,EAA8B9P,SAAQ8O,cAAR,CAAuBzP,QAArD;AACD,WAFD,MAEO;AACLkH,eAAGsJ,WAAH,CAAetJ,GAAGuJ,UAAlB,EAA8B,IAA9B;AACD;AACF;AAhCM;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAAA;AAAA;AAAA;;AAAA;AAkCP,8BAAoB,KAAK/P,SAAzB,mIAAoC;AAAA,cAA3BG,QAA2B;;AAClC,kBAAQA,SAAQR,OAAhB;AACE,iBAAK,CAAL;AAAQ6G,iBAAGwJ,UAAH,CAAc7P,SAAQiP,QAAtB,EAAgCjP,SAAQT,MAAxC,EAAiD;AACzD,iBAAK,CAAL;AAAQ8G,iBAAGyJ,UAAH,CAAc9P,SAAQiP,QAAtB,EAAgCjP,SAAQT,MAAxC,EAAiD;AACzD,iBAAK,CAAL;AAAQ8G,iBAAG0J,UAAH,CAAc/P,SAAQiP,QAAtB,EAAgCjP,SAAQT,MAAxC,EAAiD;AACzD,iBAAK,CAAL;AAAQ8G,iBAAG2J,UAAH,CAAchQ,SAAQiP,QAAtB,EAAgCjP,SAAQT,MAAxC,EAAiD;AAJ3D;AAMD;AAzCM;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AA0CR;;;+BAEUmD,O,EAAS;AAClB,UAAI,KAAKpB,cAAL,IAAuBoB,OAA3B,EAAoC;AAClC,aAAKpB,cAAL,GAAsBoB,OAAtB;AACA,aAAK0M,uBAAL,GAA+B,IAA/B;AACA,aAAK,IAAIvM,IAAI,CAAb,EAAgBA,IAAI,KAAKjD,SAAL,CAAeN,MAAnC,EAA2C,EAAEuD,CAA7C,EAAgD;AAC9C,cAAI/C,UAAU,KAAKF,SAAL,CAAeiD,CAAf,CAAd;AACA,cAAI/C,QAAQ8O,cAAZ,EAA4B;AAC1B,gBAAI,CAAC9O,QAAQ8O,cAAR,CAAuB5B,SAA5B,EAAuC;AACrC,mBAAKoC,uBAAL,GAA+B,KAA/B;AACA;AACD;AACDtP,oBAAQ8O,cAAR,CAAuBjM,UAAvB,CAAkCD,OAAlC;AACD;AACF;AACF;AACD,aAAO,KAAK0M,uBAAZ;AACD;;AAED;;;;;;AAgCA;8BACUa,U,EAAY;AACpB,aAAQA,aAAa9S,oBAAUC,UAAxB,GAAuC,KAAKoB,MAAL,GAAcrB,oBAAUC,UAAtE;AACD;;;+BAEU6S,U,EAAY;AACrB,UAAI,EAAE,KAAKzR,MAAL,GAAc7B,cAAIE,KAApB,CAAJ,EAAgC;AAC9B,eAAO,CAAP;AACD;AACD,aAAQoT,aAAa9S,oBAAUM,gBAAxB,GAA6C,KAAKe,MAAL,GAAcrB,oBAAUM,gBAA5E;AACD;;;mCAEcwS,U,EAAY;AACzB,UAAI,EAAE,KAAKzR,MAAL,GAAc7B,cAAIG,UAApB,CAAJ,EAAqC;AACnC,eAAO,CAAP;AACD;AACD,aAAQmT,aAAa9S,oBAAUQ,gBAAxB,GAA6C,KAAKa,MAAL,GAAcrB,oBAAUQ,gBAA5E;AACD;;;wBAhDc;AACb,aAAO,CAAC,EAAE,KAAKa,MAAL,GAAc7B,cAAIC,SAApB,CAAR;AACD;;;wBACW;AACV,aAAO,CAAC,EAAE,KAAK4B,MAAL,GAAc7B,cAAIE,KAApB,CAAR;AACD;;;wBACe;AACd,aAAO,CAAC,EAAE,KAAK2B,MAAL,GAAc7B,cAAIG,UAApB,CAAR;AACD;;;wBACiB;AAChB,aAAO,CAAC,EAAE,KAAK0B,MAAL,GAAc7B,cAAII,YAApB,CAAR;AACD;;;wBACe;AACd,aAAO,CAAC,EAAE,KAAKyB,MAAL,GAAc7B,cAAIK,UAApB,CAAR;AACD;;;wBACe;AACd,aAAO,CAAC,EAAE,KAAKwB,MAAL,GAAc7B,cAAIM,UAApB,CAAR;AACD;;;wBACiB;AAChB,aAAO,CAAC,EAAE,KAAKuB,MAAL,GAAc7B,cAAIO,YAApB,CAAR;AACD;;;wBACe;AACd,aAAO,CAAC,CAAC,KAAKsB,MAAL,GAAcrB,oBAAUQ,gBAAzB,KAA8CR,oBAAUO,gBAAzD,IAA6EjB,GAAGsC,KAAvF;AACD;;;wBACkB;AACjB,aAAO,gCAAiB,KAAKP,MAAtB,EAA8BrB,oBAAUG,eAAxC,EAAyDH,oBAAUE,eAAnE,CAAP;AACD;;;wBACkB;AACjB,aAAO,gCAAiB,KAAKmB,MAAtB,EAA8BrB,oBAAUK,eAAxC,EAAyDL,oBAAUI,eAAnE,CAAP;AACD;;;;;;IAsBU2S,Q,WAAAA,Q;AACX,oBAAY7J,EAAZ,EAAgB;AAAA;;AACd,SAAKK,GAAL,GAAWL,MAAM+C,oBAAjB;AACA,SAAK+G,QAAL,GAAgB,CAAhB;AACA,SAAKC,aAAL,GAAqB,EAArB;AACA,SAAKC,aAAL,GAAqB,EAArB;AACA,SAAK7O,iBAAL,GAAyB/B,MAAM7B,uBAAaK,OAAnB,CAAzB;AACA,SAAKqS,gBAAL,GAAwB,EAAxB;;AAEA,SAAKC,OAAL,GAAelK,GAAGmK,YAAH,CAAgB,yBAAhB,CAAf;;AAEA,QAAIC,oBAAoBpK,GAAGqK,wBAAH,CAA4BrK,GAAGoB,eAA/B,EAAgDpB,GAAGsK,UAAnD,CAAxB;AACA,SAAKC,qBAAL,GAA6BH,kBAAkBI,SAAlB,GAA8B,CAA9B,GAAkC,OAAlC,GAA4C,SAAzE;;AAEA,SAAKC,oBAAL,GAA4B,KAA5B;AACA,SAAKC,oBAAL,GAA4B,KAA5B;;AAEA,SAAKC,iBAAL,GAAyB/O,eAAKQ,KAAL,CAAWqH,eAAX,CAAzB;AACA,SAAKmH,eAAL,GAAuBhP,eAAKQ,KAAL,CAAWoH,aAAX,CAAvB;AACD;;;;uCAsBkB4B,M,EAAQyF,I,EAA8B;AAAA,UAAxBxF,KAAwB,uEAAhBjP,GAAG0U,WAAa;;AACvD,UAAI9K,KAAK,KAAKK,GAAd;AACA,UAAI0K,WAAW/K,GAAGgL,YAAH,EAAf;;AAEA,UAAIH,gBAAgB/N,OAApB,EAA6B;AAC3B,YAAImO,eAAe,IAAI9F,YAAJ,CAAiBC,MAAjB,EAAyBC,KAAzB,EAAgCwF,KAAK7O,IAAL,CAAU,UAAC6O,IAAD,EAAU;AACrE7K,aAAGkL,UAAH,CAAc9F,MAAd,EAAsB2F,QAAtB;AACA/K,aAAGmL,UAAH,CAAc/F,MAAd,EAAsByF,IAAtB,EAA4BxF,KAA5B;AACA4F,uBAAa9R,OAAb,GAAuB0R,KAAKO,UAA5B;AACA,iBAAOL,QAAP;AACD,SALkD,CAAhC,CAAnB;AAMA,eAAOE,YAAP;AACD,OARD,MAQO;AACLjL,WAAGkL,UAAH,CAAc9F,MAAd,EAAsB2F,QAAtB;AACA/K,WAAGmL,UAAH,CAAc/F,MAAd,EAAsByF,IAAtB,EAA4BxF,KAA5B;AACA,eAAO,IAAIF,YAAJ,CAAiBC,MAAjB,EAAyBC,KAAzB,EAAgC0F,QAAhC,EAA0CF,KAAKO,UAA/C,CAAP;AACD;AACF;;;uCAEkBpM,M,EAAQ6L,I,EAAkB;AAAA;;AAAA,UAAZQ,MAAY,uEAAH,CAAG;;AAC3C,UAAIrM,OAAOwG,OAAX,EAAoB;AAClB,YAAIxF,KAAK,KAAKK,GAAd;AACAL,WAAGkL,UAAH,CAAclM,OAAOsG,OAArB,EAA8BtG,OAAOwG,OAArC;AACA,YAAI6F,UAAU,CAAV,IAAerM,OAAO7F,OAAP,IAAkB0R,KAAKO,UAA1C,EAAsD;AACpDpL,aAAGmL,UAAH,CAAcnM,OAAOsG,OAArB,EAA8BuF,IAA9B,EAAoC7L,OAAOuG,MAA3C;AACD,SAFD,MAEO;AACLvF,aAAGsL,aAAH,CAAiBtM,OAAOsG,OAAxB,EAAiC+F,MAAjC,EAAyCR,IAAzC;AACD;AACF,OARD,MAQO;AACL7L,eAAOjD,eAAP,GAAyBC,IAAzB,CAA8B,UAACgD,MAAD,EAAY;AACxC,iBAAKuM,kBAAL,CAAwBvM,MAAxB,EAAgC6L,IAAhC,EAAsCQ,MAAtC;AACD,SAFD;AAGD;AACF;;;0CAEqBpP,S,EAAWoL,Q,EAAU;AACzC,UAAIzN,kBAAkB,IAAIyM,eAAJ,CAAoBpK,SAApB,CAAtB;;AAEA,UAAIqE,UAAU,KAAKkL,mBAAL,CAAyBnE,QAAzB,EAAmCzN,eAAnC,CAAd;AACA,UAAI6R,iBAAiB,IAAI5C,cAAJ,CAAmB,IAAnB,EAAyBxB,QAAzB,EAAmC/G,OAAnC,CAArB;AACA1G,sBAAgB8R,iBAAhB,CAAkCD,cAAlC;;AAEA,UAAI,CAAC,KAAKtQ,iBAAL,CAAuBsQ,eAAetC,YAAtC,CAAL,EAA0D;AACxD,aAAKhO,iBAAL,CAAuBsQ,eAAetC,YAAtC,IAAsD,EAAtD;AACD;;AAED,WAAKhO,iBAAL,CAAuBsQ,eAAetC,YAAtC,EAAoDzP,IAApD,CAAyDE,eAAzD;;AAEA,aAAOA,eAAP;AACD;;;+BAEUqC,S,EAAWoL,Q,EAAU;AAC9B,UAAIsE,WAAW,IAAIvR,UAAJ,EAAf;AACAuR,eAASzP,kBAAT,CAA4B,KAAK0P,qBAAL,CAA2B3P,SAA3B,EAAsCoL,QAAtC,CAA5B;AACA,aAAOsE,QAAP;AACD;;;8BAESE,K,EAAOC,Q,EAAU;AACzB,UAAI,CAACA,QAAL,EAAe;AACb;AACD;;AAED,UAAI9L,KAAK,KAAKK,GAAd;AACA,WAAKyJ,QAAL;;AAEAgC,eAASxP,UAAT,CAAoB,KAAKwN,QAAzB;;AAEA;AACA;AACA,UAAI+B,MAAM5S,MAAN,IAAgB,CAAhB,IAAqB4S,MAAM,CAAN,EAAS9G,QAAlC,EAA4C;AAC1C,YAAIgH,KAAKF,MAAM,CAAN,EAAS9G,QAAlB;AACA,aAAK1E,GAAL,CAAS0E,QAAT,CAAkBgH,GAAG9N,CAArB,EAAwB8N,GAAG7N,CAA3B,EAA8B6N,GAAGC,KAAjC,EAAwCD,GAAGE,MAA3C;AACD;;AAED;AACA,WAAK,IAAIzP,IAAI,CAAb,EAAgBA,IAAIqP,MAAM5S,MAA1B,EAAkC,EAAEuD,CAApC,EAAuC;AACrCtC,uBAAKmD,MAAL,CAAYwK,aAAZ,EAA2BgE,MAAMrP,CAAN,EAASsI,UAApC;;AAEA,YAAI,KAAKmF,gBAAL,CAAsBhR,MAAtB,IAAgCuD,CAApC,EAAuC;AACrC,eAAKyN,gBAAL,CAAsBvQ,IAAtB,CAA2BkC,eAAKzB,MAAL,EAA3B;AACD;AACD,YAAI+R,iBAAiB,KAAKjC,gBAAL,CAAsBzN,CAAtB,CAArB;AACAZ,uBAAKuQ,GAAL,CAASD,cAAT,EAAyB,CAAzB,EAA4B,CAA5B,EAA+B,CAA/B;AACAtQ,uBAAKiC,aAAL,CAAmBqO,cAAnB,EAAmCA,cAAnC,EAAmDrE,aAAnD;AACD;;AAED;AA7ByB;AAAA;AAAA;;AAAA;AA8BzB,8BAA6B,KAAK1M,iBAAlC,mIAAqD;AAAA,cAA5CiR,gBAA4C;;AACnD,cAAIA,oBAAoBA,iBAAiBnT,MAAzC,EAAiD;AAC/C,iBAAKoT,uBAAL,CAA6BR,KAA7B,EAAoCO,gBAApC;AACD;AACF;AAlCwB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAoCzB,UAAI,KAAKlC,OAAT,EAAkB;AAChB,aAAKA,OAAL,CAAaoC,kBAAb,CAAgC,IAAhC;AACD;;AAED,UAAI,KAAK7B,oBAAT,EAA+B;AAC7BzK,WAAGuM,SAAH,CAAa,IAAb;AACD;AACD,UAAI,KAAK7B,oBAAT,EAA+B;AAC7B1K,WAAGwM,SAAH,CAAa,IAAb,EAAmB,IAAnB,EAAyB,IAAzB,EAA+B,IAA/B;AACD;AACF;;;4CAEuBX,K,EAAOO,gB,EAAkB;AAC/C,UAAIpM,KAAK,KAAKK,GAAd;AACA,UAAIC,UAAU,IAAd;AACA,UAAI+G,WAAW,IAAf;AACA,UAAIoF,aAAa,CAAjB;;AAEA;AAN+C;AAAA;AAAA;;AAAA;AAO/C,8BAAsBL,gBAAtB,mIAAwC;AAAA,cAA/BnQ,SAA+B;;AACtC;AACA,cAAIA,UAAUhB,cAAV,IAA4B,KAAK6O,QAArC,EAA+C;AAC7C;AACD;;AAED;AACA;AACA;AACA,cAAIxJ,WAAWrE,UAAUqK,SAAV,CAAoBwC,QAAnC,EAA6C;AAC3CxI,sBAAUrE,UAAUqK,SAAV,CAAoBwC,QAA9B;AACAxI,oBAAQoM,GAAR;;AAEA,gBAAIpM,QAAQ3G,OAAR,CAAgBgT,eAApB,EAAqC;AACnC3M,iBAAG0J,UAAH,CAAcpJ,QAAQ3G,OAAR,CAAgBgT,eAA9B,EAA+C,KAAK/B,eAApD;AACD;;AAED,gBAAItK,QAAQ3G,OAAR,CAAgBiT,WAApB,EAAiC;AAC/B5M,iBAAG0J,UAAH,CAAcpJ,QAAQ3G,OAAR,CAAgBiT,WAA9B,EAA2C,KAAKjC,iBAAhD;AACD;;AAED,gBAAIkB,MAAM5S,MAAN,IAAgB,CAApB,EAAuB;AACrB+G,iBAAG6M,gBAAH,CAAoBvM,QAAQ3G,OAAR,CAAgBmT,iBAApC,EAAuD,KAAvD,EAA8DjB,MAAM,CAAN,EAAShH,gBAAvE;AACA7E,iBAAG6M,gBAAH,CAAoBvM,QAAQ3G,OAAR,CAAgBoT,WAApC,EAAiD,KAAjD,EAAwDlB,MAAM,CAAN,EAAS/G,UAAjE;AACA9E,iBAAG0J,UAAH,CAAcpJ,QAAQ3G,OAAR,CAAgBqT,eAA9B,EAA+C,KAAK/C,gBAAL,CAAsB,CAAtB,CAA/C;AACAjK,iBAAGiN,SAAH,CAAa3M,QAAQ3G,OAAR,CAAgBuT,SAA7B,EAAwCrB,MAAM,CAAN,EAASsB,QAAjD;AACD;AACF;;AAED,cAAI9F,YAAYpL,UAAUqK,SAA1B,EAAqC;AACnC,iBAAK8G,kBAAL,CAAwBnR,UAAUqK,SAAlC,EAA6Ce,QAA7C;AACApL,sBAAUqK,SAAV,CAAoB+G,IAApB,CAAyBrN,EAAzB,EAA6BM,OAA7B,EAAsC+G,QAAtC;AACAA,uBAAWpL,UAAUqK,SAArB;AACD;;AAED,cAAI,KAAK4D,OAAT,EAAkB;AAChB,gBAAIjO,UAAUyK,IAAd,EAAoB;AAClB,mBAAKwD,OAAL,CAAaoC,kBAAb,CAAgCrQ,UAAUyK,IAA1C;AACD,aAFD,MAEO;AACLzK,wBAAUyK,IAAV,GAAiB,KAAKwD,OAAL,CAAaoD,oBAAb,EAAjB;AACA,mBAAKpD,OAAL,CAAaoC,kBAAb,CAAgCrQ,UAAUyK,IAA1C;AACA,mBAAK6G,cAAL,CAAoBtR,SAApB;AACD;AACF,WARD,MAQO;AACL,iBAAKsR,cAAL,CAAoBtR,SAApB,EAA+BwQ,UAA/B;AACAA,yBAAaxQ,UAAU4K,cAAvB;AACD;;AAED,eAAK,IAAIrK,IAAI,CAAb,EAAgBA,IAAIqP,MAAM5S,MAA1B,EAAkC,EAAEuD,CAApC,EAAuC;AACrC,gBAAIgR,OAAO3B,MAAMrP,CAAN,CAAX;AACA,gBAAIqP,MAAM5S,MAAN,GAAe,CAAnB,EAAsB;AACpB,kBAAIuU,KAAKzI,QAAT,EAAmB;AACjB,oBAAIgH,KAAKyB,KAAKzI,QAAd;AACA/E,mBAAG+E,QAAH,CAAYgH,GAAG9N,CAAf,EAAkB8N,GAAG7N,CAArB,EAAwB6N,GAAGC,KAA3B,EAAkCD,GAAGE,MAArC;AACD;AACDjM,iBAAG6M,gBAAH,CAAoBvM,QAAQ3G,OAAR,CAAgBmT,iBAApC,EAAuD,KAAvD,EAA8DU,KAAK3I,gBAAnE;AACA7E,iBAAG6M,gBAAH,CAAoBvM,QAAQ3G,OAAR,CAAgBoT,WAApC,EAAiD,KAAjD,EAAwDS,KAAK1I,UAA7D;AACA9E,iBAAG0J,UAAH,CAAcpJ,QAAQ3G,OAAR,CAAgBqT,eAA9B,EAA+C,KAAK/C,gBAAL,CAAsBzN,CAAtB,CAA/C;AACAwD,iBAAGiN,SAAH,CAAa3M,QAAQ3G,OAAR,CAAgBuT,SAA7B,EAAwCM,KAAKL,QAA7C;AACD;;AAXoC;AAAA;AAAA;;AAAA;AAarC,qCAAqBlR,UAAUe,UAA/B,wIAA2C;AAAA,oBAAlCyQ,QAAkC;;AACzC,oBAAIA,SAASxS,cAAT,IAA2B,KAAK6O,QAApC,EAA8C;AAC5C;AACD;;AAED9J,mBAAG6M,gBAAH,CAAoBvM,QAAQ3G,OAAR,CAAgB+T,YAApC,EAAkD,KAAlD,EAAyDD,SAASnQ,WAAlE;;AAEA,oBAAIrB,UAAUiL,YAAd,EAA4B;AAC1BlH,qBAAG2N,YAAH,CAAgB1R,UAAUuK,KAA1B,EAAiCvK,UAAUwK,aAA3C,EACIxK,UAAUmL,UADd,EAC0BnL,UAAUkL,gBADpC;AAED,iBAHD,MAGO;AACLnH,qBAAG4N,UAAH,CAAc3R,UAAUuK,KAAxB,EAA+B,CAA/B,EAAkCvK,UAAUwK,aAA5C;AACD;AACF;AA1BoC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AA2BtC;AACF;AAnF8C;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAoFhD;;;sCAEiBkB,O,EAAS;AAAA;;AACzB,UAAI,CAACA,OAAL,EAAc;AACZ,eAAO,IAAP;AACD;;AAED,UAAIkG,MAAMlG,QAAQmG,UAAlB;AACA,UAAI,CAACD,GAAL,EAAU;AACR,cAAM,IAAIE,KAAJ,CAAU,kCAAV,CAAN;AACD;;AAED,UAAIF,OAAO,KAAK7D,aAAhB,EAA+B;AAC7B,eAAO,KAAKA,aAAL,CAAmB6D,GAAnB,CAAP;AACD,OAFD,MAEO;AACL,YAAI7N,KAAK,KAAKK,GAAd;AACA,YAAI2N,gBAAgBhO,GAAGiO,aAAH,EAApB;;AAEA,YAAIC,gBAAgB,IAAIxG,aAAJ,CAAkBsG,aAAlB,CAApB;AACA,aAAKhE,aAAL,CAAmB6D,GAAnB,IAA0BK,aAA1B;;AAEA,YAAIvG,mBAAmBwG,oBAAvB,EAAoC;AAClCnO,aAAGsJ,WAAH,CAAetJ,GAAGuJ,UAAlB,EAA8ByE,aAA9B;AACAhO,aAAGoO,UAAH,CAAcpO,GAAGuJ,UAAjB,EAA6B,CAA7B,EAAgC5B,QAAQ0G,MAAxC,EAAgD1G,QAAQqE,KAAxD,EAA+DrE,QAAQsE,MAAvE,EAC6B,CAD7B,EACgCtE,QAAQ0G,MADxC,EACgD1G,QAAQ2G,KADxD,EAC+D3G,QAAQ4G,KADvE;AAEA,eAAKC,qBAAL,CAA2B7G,OAA3B;AACAuG,wBAAcvH,SAAd,GAA0B,IAA1B;AACD,SAND,MAMO;AACLgB,kBAAQ5L,eAAR,GAA0BC,IAA1B,CAA+B,YAAM;AACnCgE,eAAGsJ,WAAH,CAAetJ,GAAGuJ,UAAlB,EAA8ByE,aAA9B;AACAhO,eAAGoO,UAAH,CAAcpO,GAAGuJ,UAAjB,EAA6B,CAA7B,EAAgC5B,QAAQ0G,MAAxC,EAAgD1G,QAAQ0G,MAAxD,EAAgErO,GAAGyO,aAAnE,EAAkF9G,QAAQ+G,MAA1F;AACA,mBAAKF,qBAAL,CAA2B7G,OAA3B;AACAuG,0BAAcvH,SAAd,GAA0B,IAA1B;;AAEA,gBAAIgB,mBAAmBgH,qBAAvB,EAAqC;AACnC;AACA;AACAhH,sBAAQiH,MAAR,CAAeC,gBAAf,CAAgC,SAAhC,EAA2C,YAAM;AAC/CX,8BAActG,eAAd,GAAgC,YAAM;AACpC,sBAAI,CAACD,QAAQiH,MAAR,CAAeE,MAAhB,IAA0B,CAACnH,QAAQiH,MAAR,CAAeG,OAA9C,EAAuD;AACrD/O,uBAAGsJ,WAAH,CAAetJ,GAAGuJ,UAAlB,EAA8ByE,aAA9B;AACAhO,uBAAGoO,UAAH,CAAcpO,GAAGuJ,UAAjB,EAA6B,CAA7B,EAAgC5B,QAAQ0G,MAAxC,EAAgD1G,QAAQ0G,MAAxD,EAAgErO,GAAGyO,aAAnE,EAAkF9G,QAAQ+G,MAA1F;AACD;AACF,iBALD;AAMD,eAPD;AAQD;AACF,WAlBD;AAmBD;;AAED,eAAOR,aAAP;AACD;AACF;;;0CAEqBvG,O,EAAS;AAC7B,UAAI3H,KAAK,KAAKK,GAAd;;AAEA,UAAI5G,UAAUkO,QAAQlO,OAAtB;AACA,UAAIuV,aAAajL,aAAa4D,QAAQqE,KAArB,KAA+BjI,aAAa4D,QAAQsE,MAArB,CAAhD;AACA,UAAIgD,SAASD,cAAcrH,QAAQsH,MAAnC;AACA,UAAIA,MAAJ,EAAY;AACVjP,WAAGkP,cAAH,CAAkBlP,GAAGuJ,UAArB;AACD;;AAED,UAAI4F,YAAY1V,QAAQ0V,SAAR,KAAsBF,SAASjP,GAAGoP,oBAAZ,GAAmCpP,GAAGqP,MAA5D,CAAhB;AACA,UAAIC,QAAQ7V,QAAQ6V,KAAR,KAAkBN,aAAahP,GAAGuP,MAAhB,GAAyBvP,GAAGwP,aAA9C,CAAZ;AACA,UAAIC,QAAQhW,QAAQgW,KAAR,KAAkBT,aAAahP,GAAGuP,MAAhB,GAAyBvP,GAAGwP,aAA9C,CAAZ;;AAEAxP,SAAG0P,aAAH,CAAiB1P,GAAGuJ,UAApB,EAAgCvJ,GAAG2P,kBAAnC,EAAuDlW,QAAQmW,SAAR,IAAqB5P,GAAGqP,MAA/E;AACArP,SAAG0P,aAAH,CAAiB1P,GAAGuJ,UAApB,EAAgCvJ,GAAG6P,kBAAnC,EAAuDV,SAAvD;AACAnP,SAAG0P,aAAH,CAAiB1P,GAAGuJ,UAApB,EAAgCvJ,GAAG8P,cAAnC,EAAmDR,KAAnD;AACAtP,SAAG0P,aAAH,CAAiB1P,GAAGuJ,UAApB,EAAgCvJ,GAAG+P,cAAnC,EAAmDN,KAAnD;AACD;;;mCAEcpV,I,EAAM+F,O,EAAS;AAC5B,UAAIyN,MAASxT,IAAT,MAAJ;;AAEA,WAAK,IAAIuG,MAAT,IAAmBR,OAAnB,EAA4B;AAC1ByN,eAAUjN,MAAV,SAAoBR,QAAQQ,MAAR,CAApB;AACD;;AAED,aAAOiN,GAAP;AACD;;;wCAEmBxG,Q,EAAUzN,e,EAAiB;AAAA;;AAC7C,UAAIoW,eAAe3I,SAAS2I,YAA5B;AACA,UAAIC,eAAe5I,SAAS4I,YAA5B;AACA,UAAIC,iBAAiB7I,SAAS6I,cAA9B;;AAEA;AACA,UAAIF,gBAAgB,IAApB,EAA0B;AACxB,cAAM,IAAIjC,KAAJ,CAAU,+BAAV,CAAN;AACD;AACD,UAAIkC,gBAAgB,IAApB,EAA0B;AACxB,cAAM,IAAIlC,KAAJ,gBAAuBiC,YAAvB,qCAAN;AACD;AACD,UAAIE,kBAAkB,IAAtB,EAA4B;AAC1B,cAAM,IAAInC,KAAJ,gBAAuBiC,YAAvB,uCAAN;AACD;;AAED,UAAI5P,UAAUiH,SAAS8I,iBAAT,CAA2BvW,eAA3B,CAAd;AACA,UAAIiU,MAAM,KAAKuC,cAAL,CAAoBJ,YAApB,EAAkC5P,OAAlC,CAAV;;AAEA,UAAIyN,OAAO,KAAK9D,aAAhB,EAA+B;AAC7B,eAAO,KAAKA,aAAL,CAAmB8D,GAAnB,CAAP;AACD,OAFD,MAEO;AACL,YAAIwC,YAAY,KAAhB,CADK,CACkB;AACvB,YAAIC,mBAAmBL,YAAvB;AACAK,4BAAoBD,YAAYxM,yBAAZ,GACYD,0BADhC;;AAGA,YAAI2M,iBAAiBL,eAAeM,KAAf,CAAqB9M,eAArB,CAArB;AACA,YAAI+M,sBAAsBF,iBAAiB,EAAjB,kBAAmC,KAAKhG,qBAAxC,cAA1B;;AAEA,YAAImG,qBAAqBD,sBAAsBP,cAA/C;AACAQ,8BAAsB5M,qBAAtB;;AAEA,YAAIxD,UAAU,IAAIP,gBAAJ,CAAY,KAAKM,GAAjB,EAAsBiQ,gBAAtB,EAAwCI,kBAAxC,EAA4D1N,MAA5D,EAAoE5C,OAApE,CAAd;AACA,aAAK2J,aAAL,CAAmB8D,GAAnB,IAA0BvN,OAA1B;;AAEAA,gBAAQqQ,SAAR,CAAkB,UAACrQ,OAAD,EAAa;AAC7B;AACA;AACA,eAAK,IAAI9D,IAAI,CAAb,EAAgBA,IAAI6K,SAAS9N,SAAT,CAAmBN,MAAvC,EAA+C,EAAEuD,CAAjD,EAAoD;AAClD,gBAAI/C,UAAU4N,SAAS9N,SAAT,CAAmBiD,CAAnB,CAAd;AACA,gBAAI7C,UAAU2G,QAAQ3G,OAAR,CAAgBF,QAAQZ,YAAxB,CAAd;AACA,gBAAIc,OAAJ,EAAa;AACX,qBAAK0G,GAAL,CAAS4M,SAAT,CAAmBtT,OAAnB,EAA4B6C,CAA5B;AACD;AACF;AACF,SAVD;;AAYA,eAAO8D,OAAP;AACD;AACF;;;mCAEcrE,S,EAAWwQ,U,EAAY;AACpC,UAAIzM,KAAK,KAAKK,GAAd;;AAEA;AACA,UAAIoM,cAAcxQ,UAAU4K,cAA5B,EAA4C;AAC1C,aAAK,IAAIrG,MAAT,IAAmBwC,MAAnB,EAA2B;AACzB,cAAI/G,UAAU4K,cAAV,GAA2BtD,YAAY/C,MAAZ,CAA/B,EAAoD;AAClDR,eAAG4Q,uBAAH,CAA2B5N,OAAOxC,MAAP,CAA3B;AACD,WAFD,MAEO;AACLR,eAAG6Q,wBAAH,CAA4B7N,OAAOxC,MAAP,CAA5B;AACD;AACF;AACF;;AAED;AAdoC;AAAA;AAAA;;AAAA;AAepC,+BAA4BvE,UAAU2K,iBAAtC,wIAAyD;AAAA,cAAhDK,eAAgD;;AACvDjH,aAAGkL,UAAH,CAAclL,GAAG8Q,YAAjB,EAA+B7J,gBAAgBzB,OAAhB,CAAwBA,OAAvD;AADuD;AAAA;AAAA;;AAAA;AAEvD,mCAAmByB,gBAAgBb,WAAnC,wIAAgD;AAAA,kBAAvC5F,OAAuC;;AAC9CR,iBAAG+Q,mBAAH,CACIvQ,QAAOqF,aADX,EAC0BrF,QAAOsF,eADjC,EACkDtF,QAAOuF,cADzD,EAEIvF,QAAO0F,WAFX,EAEwB1F,QAAOwF,OAF/B,EAEwCxF,QAAOyF,WAF/C;AAGD;AANsD;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAOxD;AAtBmC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAwBpC,UAAIhK,UAAUiL,YAAd,EAA4B;AAC1BlH,WAAGkL,UAAH,CAAclL,GAAGgR,oBAAjB,EAAuC/U,UAAUiL,YAAV,CAAuB1B,OAA9D;AACD,OAFD,MAEO;AACLxF,WAAGkL,UAAH,CAAclL,GAAGgR,oBAAjB,EAAuC,IAAvC;AACD;AACF;;;uCAEkB3J,Q,EAA+B;AAAA,UAArB4J,YAAqB,uEAAN,IAAM;;AAChD,UAAIjR,KAAK,KAAKK,GAAd;;AAEA,UAAIxI,QAAQwP,SAASlP,MAArB;AACA,UAAI8P,YAAYgJ,eAAeA,aAAa9Y,MAA5B,GAAqC,CAACN,KAAtD;;AAEA;AACA,UAAIA,SAASoQ,SAAb,EAAwB;AACtB;AACD;;AAED;AACA,UAAIZ,SAAS6J,SAAT,CAAmBjJ,SAAnB,CAAJ,EAAmC;AACjCH,eAAO9H,EAAP,EAAWA,GAAGzJ,SAAd,EAAyBD,cAAIC,SAA7B,EAAwC0R,SAAxC,EAAmDpQ,KAAnD;AACAiQ,eAAO9H,EAAP,EAAWA,GAAGxJ,KAAd,EAAqBF,cAAIE,KAAzB,EAAgCyR,SAAhC,EAA2CpQ,KAA3C;AACAiQ,eAAO9H,EAAP,EAAWA,GAAGvJ,UAAd,EAA0BH,cAAIG,UAA9B,EAA0CwR,SAA1C,EAAqDpQ,KAArD;AACAiQ,eAAO9H,EAAP,EAAWA,GAAGtJ,YAAd,EAA4BJ,cAAII,YAAhC,EAA8CuR,SAA9C,EAAyDpQ,KAAzD;;AAEA,YAAIsZ,kBAAkB,CAACtZ,QAAQvB,cAAIK,UAAb,KAA4BsR,YAAY3R,cAAIK,UAA5C,CAAtB;AACA,YAAIwa,eAAJ,EAAqB;AACnB,cAAIrZ,OAAOqZ,kBAAkB,CAA7B;AACA,eAAKzG,oBAAL,GAA4B,CAAC5S,IAA7B;AACAkI,aAAGwM,SAAH,CAAa1U,IAAb,EAAmBA,IAAnB,EAAyBA,IAAzB,EAA+BA,IAA/B;AACD;;AAED,YAAIsZ,kBAAkB,CAACvZ,QAAQvB,cAAIM,UAAb,KAA4BqR,YAAY3R,cAAIM,UAA5C,CAAtB;AACA,YAAIwa,eAAJ,EAAqB;AACnB,eAAK3G,oBAAL,GAA4B,EAAE2G,kBAAkB,CAApB,CAA5B;AACApR,aAAGuM,SAAH,CAAa6E,kBAAkB,CAA/B;AACD;;AAED,YAAIC,oBAAoB,CAACxZ,QAAQvB,cAAIO,YAAb,KAA8BoR,YAAY3R,cAAIO,YAA9C,CAAxB;AACA,YAAIwa,iBAAJ,EAAuB;AACrBrR,aAAGsR,WAAH,CAAeD,oBAAoB,CAAnC;AACD;AACF;;AAED;AACA,UAAIhK,SAASkK,UAAT,CAAoBtJ,SAApB,CAAJ,EAAoC;AAClCjI,WAAGwR,SAAH,CAAanK,SAASjP,YAAtB,EAAoCiP,SAAS/O,YAA7C;AACD;;AAED;AACA,UAAI+O,SAASoK,cAAT,CAAwBxJ,SAAxB,CAAJ,EAAwC;AACtCjI,WAAGxH,SAAH,CAAa6O,SAAS7O,SAAtB;AACD;AACF;;;wBAraQ;AACP,aAAO,KAAK6H,GAAZ;AACD;;;sBAEoBrI,K,EAAO;AAC1B4D,qBAAKC,IAAL,CAAU,KAAK8O,iBAAf,EAAkC3S,KAAlC;AACD,K;wBAEsB;AACrB,aAAO4D,eAAKQ,KAAL,CAAW,KAAKuO,iBAAhB,CAAP;AACD;;;sBAEkB3S,K,EAAO;AACxB4D,qBAAKC,IAAL,CAAU,KAAK+O,eAAf,EAAgC5S,KAAhC;AACD,K;wBAEoB;AACnB,aAAO4D,eAAKQ,KAAL,CAAW,KAAKwO,eAAhB,CAAP;AACD;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;ACthBH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA,IAAMxU,KAAKC,qBAAX,C,CAAkC;;IAErBqb,c,WAAAA,c,GACX,0BAAc;AAAA;;AACZ,OAAKvC,SAAL,GAAiB,IAAjB;AACA,OAAKS,SAAL,GAAiB,IAAjB;AACA,OAAKN,KAAL,GAAa,IAAb;AACA,OAAKG,KAAL,GAAa,IAAb;AACD,C;;IAGUkC,O,WAAAA,O;AACX,qBAAc;AAAA;;AACZ,SAAKlY,OAAL,GAAe,IAAIiY,cAAJ,EAAf;AACA,SAAKzC,MAAL,GAAc,IAAd;AACA;AACD;;;;wBAEY;AACX,aAAO7Y,GAAGwb,IAAV;AACD;;;wBAEW;AACV,aAAO,CAAP;AACD;;;wBAEY;AACX,aAAO,CAAP;AACD;;;wBAEgB;AACf,aAAO,IAAP;AACD;;;;;;IAGUC,Y,WAAAA,Y;;;AACX,wBAAYC,GAAZ,EAAiB;AAAA;;AAAA;;AAGf,UAAKC,IAAL,GAAYD,GAAZ;AACA,UAAKE,UAAL,GAAkB,IAAlB;;AAEA,QAAIF,IAAIG,GAAJ,IAAWH,IAAII,QAAnB,EAA6B;AAC3B,UAAIJ,IAAIK,YAAR,EAAsB;AACpB,cAAK1M,QAAL,GAAgB,MAAK2M,YAAL,EAAhB;AACD,OAFD,MAEO;AACL,cAAK3M,QAAL,GAAgB3I,QAAQwK,MAAR,CAAe,oCAAf,CAAhB;AACD;AACF,KAND,MAMO;AACL,YAAK7B,QAAL,GAAgB,IAAI3I,OAAJ,CAAY,UAAC4I,OAAD,EAAU4B,MAAV,EAAqB;AAC/CwK,YAAIjD,gBAAJ,CAAqB,MAArB,EAA6B;AAAA,iBAAMnJ,QAAQ,MAAK0M,YAAL,EAAR,CAAN;AAAA,SAA7B;AACAN,YAAIjD,gBAAJ,CAAqB,OAArB,EAA8BvH,MAA9B;AACD,OAHe,CAAhB;AAID;AAjBc;AAkBhB;;;;mCAEc;AAAA;;AACb,UAAI+K,OAAOC,iBAAX,EAA8B;AAC5B,eAAOD,OAAOC,iBAAP,CAAyB,KAAKP,IAA9B,EAAoC/V,IAApC,CAAyC,UAACuW,SAAD,EAAe;AAC7D,iBAAKP,UAAL,GAAkBO,SAAlB;AACA,iBAAOzV,QAAQ4I,OAAR,CAAgB,MAAhB,CAAP;AACD,SAHM,CAAP;AAID;AACD,aAAO5I,QAAQ4I,OAAR,CAAgB,IAAhB,CAAP;AACD;;;sCAeiB;AAChB,aAAO,KAAKD,QAAZ;AACD;;;wBAfY;AACX;AACA,aAAOrP,GAAGwb,IAAV;AACD;;;wBAEW;AACV,aAAO,KAAKG,IAAL,CAAU/F,KAAjB;AACD;;;wBAEY;AACX,aAAO,KAAK+F,IAAL,CAAU9F,MAAjB;AACD;;;wBAMgB;AACf,aAAO,KAAK8F,IAAL,CAAUE,GAAjB;AACD;;;wBAEY;AACX,aAAO,KAAKD,UAAL,IAAmB,KAAKD,IAA/B;AACD;;;;EAtD+BJ,O;;IAyDrBa,U,WAAAA,U;;;AACX,sBAAYC,GAAZ,EAAiB;AAAA;;AACf,QAAIX,MAAM,IAAIY,KAAJ,EAAV;;AADe,yHAETZ,GAFS;;AAGfA,QAAIG,GAAJ,GAAUQ,GAAV;AAHe;AAIhB;;;EAL6BZ,Y;;IAQnBc,W,WAAAA,W;;;AACX,uBAAYC,IAAZ,EAAkB;AAAA;;AAChB,QAAId,MAAM,IAAIY,KAAJ,EAAV;;AADgB,2HAEVZ,GAFU;;AAGhBA,QAAIG,GAAJ,GAAUI,OAAOQ,GAAP,CAAWC,eAAX,CAA2BF,IAA3B,CAAV;AAHgB;AAIjB;;;EAL8Bf,Y;;IAQpBlD,Y,WAAAA,Y;;;AACX,wBAAYoE,KAAZ,EAAmB;AAAA;;AAAA;;AAGjB,WAAKnE,MAAL,GAAcmE,KAAd;;AAEA,QAAIA,MAAMC,UAAN,IAAoB,CAAxB,EAA2B;AACzB,aAAKvN,QAAL,GAAgB3I,QAAQ4I,OAAR,QAAhB;AACD,KAFD,MAEO,IAAIqN,MAAMjR,KAAV,EAAiB;AACtB,aAAK2D,QAAL,GAAgB3I,QAAQwK,MAAR,CAAeyL,MAAMjR,KAArB,CAAhB;AACD,KAFM,MAEA;AACL,aAAK2D,QAAL,GAAgB,IAAI3I,OAAJ,CAAY,UAAC4I,OAAD,EAAU4B,MAAV,EAAqB;AAC/CyL,cAAMlE,gBAAN,CAAuB,YAAvB,EAAqC;AAAA,iBAAMnJ,eAAN;AAAA,SAArC;AACAqN,cAAMlE,gBAAN,CAAuB,OAAvB,EAAgCvH,MAAhC;AACD,OAHe,CAAhB;AAID;AAdgB;AAelB;;;;sCAeiB;AAChB,aAAO,KAAK7B,QAAZ;AACD;;;wBAfY;AACX;AACA,aAAOrP,GAAGwb,IAAV;AACD;;;wBAEW;AACV,aAAO,KAAKhD,MAAL,CAAYqE,UAAnB;AACD;;;wBAEY;AACX,aAAO,KAAKrE,MAAL,CAAYsE,WAAnB;AACD;;;wBAMgB;AACf,aAAO,KAAKtE,MAAL,CAAYqD,GAAnB;AACD;;;wBAEY;AACX,aAAO,KAAKrD,MAAZ;AACD;;;;EAzC+B+C,O;;AA4ClC,IAAIwB,uBAAuB,CAA3B;;IAEahF,W,WAAAA,W;;;AACX,uBAAYtD,IAAZ,EAAkBmB,KAAlB,EAAyBC,MAAzB,EAA4E;AAAA,QAA3CoC,MAA2C,uEAAlCjY,GAAGwb,IAA+B;AAAA,QAAzBwB,IAAyB,uEAAlBhd,GAAGqY,aAAe;;AAAA;;AAAA;;AAG1E,WAAKF,KAAL,GAAa1D,IAAb;AACA,WAAKwI,MAAL,GAAcrH,KAAd;AACA,WAAKsH,OAAL,GAAerH,MAAf;AACA,WAAKsH,OAAL,GAAelF,MAAf;AACA,WAAKC,KAAL,GAAa8E,IAAb;AACA,WAAKI,IAAL,aAAoBL,oBAApB;AACAA;AAT0E;AAU3E;;;;wBAEY;AACX,aAAO,KAAKI,OAAZ;AACD;;;wBAEW;AACV,aAAO,KAAKF,MAAZ;AACD;;;wBAEY;AACX,aAAO,KAAKC,OAAZ;AACD;;;wBAEgB;AACf,aAAO,KAAKE,IAAZ;AACD;;;;EA3B8B7B,O;;IA8BpB8B,Y,WAAAA,Y;;;AACX,wBAAYC,CAAZ,EAAeC,CAAf,EAAkBC,CAAlB,EAAqBC,CAArB,EAAwB;AAAA;;AACtB,QAAIC,YAAY,IAAIC,UAAJ,CAAe,CAACL,IAAE,KAAH,EAAUC,IAAE,KAAZ,EAAmBC,IAAE,KAArB,EAA4BC,IAAE,KAA9B,CAAf,CAAhB;;AADsB,6HAEhBC,SAFgB,EAEL,CAFK,EAEF,CAFE;;AAItB,WAAK7E,MAAL,GAAc,KAAd;AACA,WAAKuE,IAAL,cAAqBM,UAAU,CAAV,CAArB,SAAqCA,UAAU,CAAV,CAArC,SAAqDA,UAAU,CAAV,CAArD,SAAqEA,UAAU,CAAV,CAArE;AALsB;AAMvB;;;EAP+B3F,W;;;;;;;;;;;;;;;;;;;;;;;iBCxL1B/T,I;;;;;;;;;qBACAyP,Q;;;;;;qBAAU9G,kB;;;;;;;;;oBACVyP,U;;;;;;;;;4BAEAwB,e;;;;;;;;;uBACAC,U;;;;;;;;;gBAEAC,W;;;;;;;;;qBAEAha,I;;;;;;qBAAMia,I;;;;;;qBAAMvY,I;;;;;;qBAAMwY,I;;;;;;qBAAMtY,I;;;;;;;;;2BAExBuY,c;;;;;;;;;mBACAC,U;;;;;;;;;uBACAC,c;;;;;;;;;oBACAC,W;;;;;;;;;iBACAC,S;;;;;;;;;mBACAC,U;;;;;;;;;kBACAC,S;;;;;;;;;kBAEAC,S;;;;;;kBAAWC,K;;;;;;;;;2BAEXC,c;;;;;;;;;sBACAC,S;;;;;;;;;;;;;;;;;;;;;;;ACtBR;;;;;;+eApBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;IAIad,U,WAAAA,U;;;;;;;;;;;4BACHpU,G,EAAKC,G,EAAK;AAChB,UAAIkV,SAAS,KAAKC,eAAlB;;AAEA,UAAIC,IAAIpV,IAAI,CAAJ,IAASD,IAAI,CAAJ,CAAjB;AACA,UAAIsV,IAAIrV,IAAI,CAAJ,IAASD,IAAI,CAAJ,CAAjB;AACA,UAAIuV,IAAItV,IAAI,CAAJ,IAASD,IAAI,CAAJ,CAAjB;;AAEA,UAAIwV,KAAKH,IAAI,GAAb;AACA,UAAII,KAAKH,IAAI,GAAb;AACA,UAAII,KAAKH,IAAI,GAAb;;AAEA,UAAII,KAAK3V,IAAI,CAAJ,IAASwV,EAAlB;AACA,UAAII,KAAK5V,IAAI,CAAJ,IAASyV,EAAlB;AACA,UAAII,KAAK7V,IAAI,CAAJ,IAAS0V,EAAlB;;AAEAP,aAAOW,aAAP;;AAEA;AACA,UAAIC,MAAMZ,OAAOa,eAAjB;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEA;AACAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,CAAC,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,CAAC,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,CAAC,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,CAAC,GAA1D,EAA+D,GAA/D;;AAEA;AACAE,YAAMZ,OAAOa,eAAb;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;;AAEA;AACAE,YAAMZ,OAAOa,eAAb;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,CAAC,GAArD,EAA0D,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,CAAC,GAArD,EAA0D,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,CAAC,GAArD,EAA0D,GAA1D,EAA+D,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,CAAC,GAArD,EAA0D,GAA1D,EAA+D,GAA/D;;AAEA;AACAE,YAAMZ,OAAOa,eAAb;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;;AAEA;AACAE,YAAMZ,OAAOa,eAAb;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,CAAC,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,CAAC,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,CAAC,GAA/D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,CAAC,GAA/D;;AAEA;AACAE,YAAMZ,OAAOa,eAAb;AACAb,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,aAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;;AAEAZ,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;AACAV,aAAOe,UAAP,CAAkB,CAACV,EAAD,GAAIG,EAAtB,EAA0B,CAACF,EAAD,GAAIG,EAA9B,EAAkC,CAACF,EAAD,GAAIG,EAAtC,EAA0C,GAA1C,EAA+C,GAA/C,EAAoD,GAApD,EAAyD,GAAzD,EAA8D,GAA9D;;AAEAV,aAAOgB,WAAP;AACD;;;+BAEwC;AAAA,UAAhCC,MAAgC,uEAAvB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAAuB;AAAA,UAAZC,IAAY,uEAAL,GAAK;;AACvC,UAAIC,KAAKD,OAAO,GAAhB;AACA,WAAKE,OAAL,CAAa,CAACH,OAAO,CAAP,IAAYE,EAAb,EAAiBF,OAAO,CAAP,IAAYE,EAA7B,EAAiCF,OAAO,CAAP,IAAYE,EAA7C,CAAb,EACa,CAACF,OAAO,CAAP,IAAYE,EAAb,EAAiBF,OAAO,CAAP,IAAYE,EAA7B,EAAiCF,OAAO,CAAP,IAAYE,EAA7C,CADb;AAED;;;;EAtF6BE,oC;;;;;;;;;;;;;;;;;;;qjBCtBhC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;AACA;;;;AAEA,IAAMjgB,KAAKC,qBAAX,C,CAAkC;;AAElC,IAAMigB,WAAW1a,eAAKzB,MAAL,EAAjB;;IAEa6Z,e,WAAAA,e;AACX,2BAAYuC,OAAZ,EAAqB;AAAA;;AACnB,SAAKC,SAAL,GAAiB,EAAjB;AACA,SAAKC,QAAL,GAAgB,EAAhB;;AAEA,SAAKC,gBAAL,GAAwB,KAAxB;;AAEA,SAAKC,aAAL,GAAqB,CAArB;AACA,SAAKC,YAAL,GAAoB,CAApB;AACA,SAAKC,UAAL,GAAkB,CAAlB;;AAEA,SAAKC,YAAL,GAAoB,KAApB;AACA,SAAKC,cAAL,GAAsB,KAAtB;AACA,SAAKC,UAAL,GAAkB,IAAlB;AACA,SAAKC,gBAAL,GAAwB,IAAxB;AACA,SAAK7Z,IAAL,GAAY,IAAZ;AACA,SAAKQ,IAAL,GAAY,IAAZ;AACD;;;;oCAyCe;AACd,UAAI,KAAK8Y,gBAAT,EAA2B;AACzB,cAAM,IAAI3I,KAAJ,wEAAN;AACD;;AAED,WAAK2I,gBAAL,GAAwB,IAAxB;AACA,WAAKE,YAAL,GAAoB,CAApB;AACA,WAAKC,UAAL,GAAkB,CAAlB;AACD;;;kCAEa;AACZ,UAAI,CAAC,KAAKH,gBAAV,EAA4B;AAC1B,cAAM,IAAI3I,KAAJ,uDAAN;AACD;;AAED,UAAI,KAAK8I,UAAL,IAAmB,KAAKD,YAA5B,EAA0C;AACxC,cAAM,IAAI7I,KAAJ,sGACmC,KAAK8I,UADxC,kCAC+E,KAAKD,YADpF,OAAN;AAED;;AAED,WAAKF,gBAAL,GAAwB,KAAxB;AACA,WAAKC,aAAL,IAAsB,KAAKC,YAA3B;;AAEA;AACD;;;+BAEU3Y,C,EAAGC,C,EAAGC,C,EAAyC;AAAA,UAAtC+Y,CAAsC,uEAAlC,CAAkC;AAAA,UAA/BC,CAA+B,uEAA3B,CAA2B;AAAA,UAAxBC,EAAwB,uEAAnB,CAAmB;AAAA,UAAhBC,EAAgB,uEAAX,CAAW;AAAA,UAARC,EAAQ,uEAAH,CAAG;;AACxD,UAAI,CAAC,KAAKZ,gBAAV,EAA4B;AAC1B,cAAM,IAAI3I,KAAJ,wDAAN;AACD;;AAED;AACA,UAAI,KAAKiJ,UAAT,EAAqB;AACnBV,iBAAS,CAAT,IAAcrY,CAAd;AACAqY,iBAAS,CAAT,IAAcpY,CAAd;AACAoY,iBAAS,CAAT,IAAcnY,CAAd;AACAvC,uBAAKiC,aAAL,CAAmByY,QAAnB,EAA6BA,QAA7B,EAAuC,KAAKU,UAA5C;AACA/Y,YAAIqY,SAAS,CAAT,CAAJ;AACApY,YAAIoY,SAAS,CAAT,CAAJ;AACAnY,YAAImY,SAAS,CAAT,CAAJ;;AAEAA,iBAAS,CAAT,IAAcc,EAAd;AACAd,iBAAS,CAAT,IAAce,EAAd;AACAf,iBAAS,CAAT,IAAcgB,EAAd;AACA1b,uBAAK2b,aAAL,CAAmBjB,QAAnB,EAA6BA,QAA7B,EAAuC,KAAKW,gBAA5C;AACAG,aAAKd,SAAS,CAAT,CAAL;AACAe,aAAKf,SAAS,CAAT,CAAL;AACAgB,aAAKhB,SAAS,CAAT,CAAL;AACD;;AAED,UAAI,KAAKS,cAAT,EAAyB;AACvBK,cAAM,CAAC,GAAP;AACAC,cAAM,CAAC,GAAP;AACAC,cAAM,CAAC,GAAP;AACD;;AAED,WAAKd,SAAL,CAAe9c,IAAf,CAAoBuE,CAApB,EAAuBC,CAAvB,EAA0BC,CAA1B,EAA6B+Y,CAA7B,EAAgCC,CAAhC,EAAmCC,EAAnC,EAAuCC,EAAvC,EAA2CC,EAA3C;;AAEA,UAAI,KAAKla,IAAT,EAAe;AACb,aAAKA,IAAL,CAAU,CAAV,IAAeoa,KAAK3X,GAAL,CAAS,KAAKzC,IAAL,CAAU,CAAV,CAAT,EAAuBa,CAAvB,CAAf;AACA,aAAKb,IAAL,CAAU,CAAV,IAAeoa,KAAK3X,GAAL,CAAS,KAAKzC,IAAL,CAAU,CAAV,CAAT,EAAuBc,CAAvB,CAAf;AACA,aAAKd,IAAL,CAAU,CAAV,IAAeoa,KAAK3X,GAAL,CAAS,KAAKzC,IAAL,CAAU,CAAV,CAAT,EAAuBe,CAAvB,CAAf;AACA,aAAKP,IAAL,CAAU,CAAV,IAAe4Z,KAAK1X,GAAL,CAAS,KAAKlC,IAAL,CAAU,CAAV,CAAT,EAAuBK,CAAvB,CAAf;AACA,aAAKL,IAAL,CAAU,CAAV,IAAe4Z,KAAK1X,GAAL,CAAS,KAAKlC,IAAL,CAAU,CAAV,CAAT,EAAuBM,CAAvB,CAAf;AACA,aAAKN,IAAL,CAAU,CAAV,IAAe4Z,KAAK1X,GAAL,CAAS,KAAKlC,IAAL,CAAU,CAAV,CAAT,EAAuBO,CAAvB,CAAf;AACD,OAPD,MAOO;AACL,aAAKf,IAAL,GAAYxB,eAAKoC,UAAL,CAAgBC,CAAhB,EAAmBC,CAAnB,EAAsBC,CAAtB,CAAZ;AACA,aAAKP,IAAL,GAAYhC,eAAKoC,UAAL,CAAgBC,CAAhB,EAAmBC,CAAnB,EAAsBC,CAAtB,CAAZ;AACD;;AAED,aAAO,KAAKyY,YAAL,EAAP;AACD;;;iCAMYa,I,EAAMC,I,EAAMC,I,EAAM;AAC7B,UAAI,CAAC,KAAKjB,gBAAV,EAA4B;AAC1B,cAAM,IAAI3I,KAAJ,yDAAN;AACD;;AAED,WAAK8I,UAAL,GAAkBW,KAAK1X,GAAL,CAAS,KAAK+W,UAAd,EAA0BY,IAA1B,EAAgCC,IAAhC,EAAsCC,IAAtC,CAAlB;;AAEAF,cAAQ,KAAKd,aAAb;AACAe,cAAQ,KAAKf,aAAb;AACAgB,cAAQ,KAAKhB,aAAb;;AAEA,UAAI,KAAKG,YAAT,EAAuB;AACrB,aAAKL,QAAL,CAAc/c,IAAd,CAAmBie,IAAnB,EAAyBD,IAAzB,EAA+BD,IAA/B;AACD,OAFD,MAEO;AACL,aAAKhB,QAAL,CAAc/c,IAAd,CAAmB+d,IAAnB,EAAyBC,IAAzB,EAA+BC,IAA/B;AACD;AACF;;;4BAEO;AACN,UAAI,KAAKjB,gBAAT,EAA2B;AACzB,cAAM,IAAI3I,KAAJ,oDAAN;AACD;;AAED,WAAKyI,SAAL,GAAiB,EAAjB;AACA,WAAKC,QAAL,GAAgB,EAAhB;AACA,WAAKE,aAAL,GAAqB,CAArB;AACA,WAAKvZ,IAAL,GAAY,IAAZ;AACA,WAAKQ,IAAL,GAAY,IAAZ;AACD;;;oCAEetC,Q,EAAU;AACxB,UAAI,CAAC,KAAKqb,aAAV,EAAyB;AACvB,cAAM,IAAI5I,KAAJ,qEAAN;AACD;;AAED,UAAI6J,eAAetc,SAASuc,kBAAT,CAA4BzhB,GAAG0a,YAA/B,EAA6C,IAAIhX,YAAJ,CAAiB,KAAK0c,SAAtB,CAA7C,CAAnB;AACA,UAAI9W,cAAcpE,SAASuc,kBAAT,CAA4BzhB,GAAG4a,oBAA/B,EAAqD,IAAI8G,WAAJ,CAAgB,KAAKrB,QAArB,CAArD,CAAlB;;AAEA,UAAIsB,UAAU,CACZ,IAAIhZ,6BAAJ,CAAuB,UAAvB,EAAmC6Y,YAAnC,EAAiD,CAAjD,EAAoDxhB,GAAG4hB,KAAvD,EAA8D,EAA9D,EAAkE,CAAlE,CADY,EAEZ,IAAIjZ,6BAAJ,CAAuB,YAAvB,EAAqC6Y,YAArC,EAAmD,CAAnD,EAAsDxhB,GAAG4hB,KAAzD,EAAgE,EAAhE,EAAoE,EAApE,CAFY,EAGZ,IAAIjZ,6BAAJ,CAAuB,QAAvB,EAAiC6Y,YAAjC,EAA+C,CAA/C,EAAkDxhB,GAAG4hB,KAArD,EAA4D,EAA5D,EAAgE,EAAhE,CAHY,CAAd;;AAMA,UAAI/b,YAAY,IAAIqD,oBAAJ,CAAcyY,OAAd,EAAuB,KAAKtB,QAAL,CAAcxd,MAArC,CAAhB;AACAgD,gBAAUgc,cAAV,CAAyBvY,WAAzB;AACAzD,gBAAUic,SAAV,CAAoB,KAAK9a,IAAzB,EAA+B,KAAKQ,IAApC;;AAEA,aAAO3B,SAAP;AACD;;;sBArKejE,K,EAAO;AACrB,UAAI,KAAK0e,gBAAT,EAA2B;AACzB,cAAM,IAAI3I,KAAJ,iEAAN;AACD;AACD,WAAK+I,YAAL,GAAoB9e,KAApB;AACD,K;wBAEiB;AAChB,WAAK8e,YAAL;AACD;;;sBAEiB9e,K,EAAO;AACvB,UAAI,KAAK0e,gBAAT,EAA2B;AACzB,cAAM,IAAI3I,KAAJ,mEAAN;AACD;AACD,WAAKgJ,cAAL,GAAsB/e,KAAtB;AACD,K;wBAEmB;AAClB,WAAK+e,cAAL;AACD;;;sBAEa/e,K,EAAO;AACnB,UAAI,KAAK0e,gBAAT,EAA2B;AACzB,cAAM,IAAI3I,KAAJ,+DAAN;AACD;AACD,WAAKiJ,UAAL,GAAkBhf,KAAlB;AACA,UAAI,KAAKgf,UAAT,EAAqB;AACnB,YAAI,CAAC,KAAKC,gBAAV,EAA4B;AAC1B,eAAKA,gBAAL,GAAwB9C,eAAKha,MAAL,EAAxB;AACD;AACDga,uBAAKgE,QAAL,CAAc,KAAKlB,gBAAnB,EAAqC,KAAKD,UAA1C;AACD;AACF,K;wBAEe;AACd,WAAKA,UAAL;AACD;;;wBA2EqB;AACpB,aAAO,KAAKJ,YAAZ;AACD;;;;;;IAsDUP,mB,WAAAA,mB;AACX,+BAAYpB,eAAZ,EAA6B;AAAA;;AAC3B,QAAIA,eAAJ,EAAqB;AACnB,WAAKmD,OAAL,GAAenD,eAAf;AACD,KAFD,MAEO;AACL,WAAKmD,OAAL,GAAe,IAAIpE,eAAJ,EAAf;AACD;AACF;;;;oCAUe1Y,Q,EAAU;AACxB,aAAO,KAAK8c,OAAL,CAAaC,eAAb,CAA6B/c,QAA7B,CAAP;AACD;;;4BAEO;AACN,WAAK8c,OAAL,CAAaE,KAAb;AACD;;;sBAdmBtgB,K,EAAO;AACzB,WAAKogB,OAAL,GAAepgB,KAAf;AACD,K;wBAEqB;AACpB,aAAO,KAAKogB,OAAZ;AACD;;;;;;;;;;;;;;;;;;;;;;;qjBCrOH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;AACA;;AACA;;AACA;;;;AAEA,IAAMhiB,KAAKC,qBAAX,C,CAAkC;;AAElC,IAAMkiB,YAAY,UAAlB;AACA,IAAMC,aAAa;AACjBC,QAAM,UADW;AAEjBC,OAAK;AAFY,CAAnB;;AAKA,SAASC,aAAT,CAAuBC,GAAvB,EAA4B;AAC1B,MAAIC,WAAW,IAAIlV,MAAJ,CAAW,MAAI0O,OAAOyG,QAAP,CAAgBC,QAA/B,EAAyC,GAAzC,CAAf;AACA,SAAO,CAAC,CAACH,IAAIpI,KAAJ,CAAUqI,QAAV,CAAT;AACD;;AAED,SAASG,SAAT,CAAmBJ,GAAnB,EAAwB;AACtB,MAAIK,YAAY,QAAhB;AACA,SAAO,CAAC,CAACL,IAAIpI,KAAJ,CAAUyI,SAAV,CAAT;AACD;;AAED,SAASC,UAAT,CAAoBN,GAApB,EAAyBO,OAAzB,EAAkC;AAChC,MAAIR,cAAcC,GAAd,KAAsBI,UAAUJ,GAAV,CAA1B,EAA0C;AACtC,WAAOA,GAAP;AACH;AACD,SAAOO,UAAUP,GAAjB;AACD;;AAED,SAASQ,iBAAT,CAA2BhG,IAA3B,EAAiC;AAC/B,UAAQA,IAAR;AACE,SAAK,QAAL;AAAe,aAAO,CAAP;AACf,SAAK,MAAL;AAAa,aAAO,CAAP;AACb,SAAK,MAAL;AAAa,aAAO,CAAP;AACb,SAAK,MAAL;AAAa,aAAO,CAAP;AACb;AAAS,aAAO,CAAP;AALX;AAOD;;AAED;;;;;IAKaiG,W,WAAAA,W;AACX,uBAAY/d,QAAZ,EAAsB;AAAA;;AACpB,SAAKA,QAAL,GAAgBA,QAAhB;AACA,SAAK+E,GAAL,GAAW/E,SAAS+E,GAApB;AACD;;;;gCAEWoS,G,EAAK;AAAA;;AACf,aAAO6G,MAAM7G,GAAN,EACFzW,IADE,CACG,UAACud,QAAD,EAAc;AAClB,YAAI/c,IAAIiW,IAAI+G,WAAJ,CAAgB,GAAhB,CAAR;AACA,YAAIL,UAAW3c,MAAM,CAAP,GAAYiW,IAAIgH,SAAJ,CAAc,CAAd,EAAiBjd,IAAI,CAArB,CAAZ,GAAsC,EAApD;;AAEA,YAAIiW,IAAIiH,QAAJ,CAAa,OAAb,CAAJ,EAA2B;AACzB,iBAAOH,SAASI,IAAT,GAAgB3d,IAAhB,CAAqB,UAAC2d,IAAD,EAAU;AACpC,mBAAO,MAAKC,YAAL,CAAkBD,IAAlB,EAAwBR,OAAxB,CAAP;AACD,WAFM,CAAP;AAGD,SAJD,MAIO,IAAI1G,IAAIiH,QAAJ,CAAa,MAAb,CAAJ,EAA0B;AAC/B,iBAAOH,SAASM,WAAT,GAAuB7d,IAAvB,CAA4B,UAAC6d,WAAD,EAAiB;AAClD,mBAAO,MAAKC,cAAL,CAAoBD,WAApB,EAAiCV,OAAjC,CAAP;AACD,WAFM,CAAP;AAGD,SAJM,MAIA;AACL,gBAAM,IAAIpL,KAAJ,CAAU,6BAAV,CAAN;AACD;AACF,OAhBE,CAAP;AAiBD;;;mCAEc8L,W,EAAaV,O,EAAS;AACnC,UAAIY,aAAa,IAAIC,QAAJ,CAAaH,WAAb,EAA0B,CAA1B,EAA6B,EAA7B,CAAjB;AACA,UAAII,QAAQF,WAAWG,SAAX,CAAqB,CAArB,EAAwB,IAAxB,CAAZ;AACA,UAAIC,UAAUJ,WAAWG,SAAX,CAAqB,CAArB,EAAwB,IAAxB,CAAd;AACA,UAAIjhB,SAAS8gB,WAAWG,SAAX,CAAqB,CAArB,EAAwB,IAAxB,CAAb;;AAEA,UAAID,SAAS1B,SAAb,EAAwB;AACtB,cAAM,IAAIxK,KAAJ,CAAU,wCAAV,CAAN;AACD;;AAED,UAAIoM,WAAW,CAAf,EAAkB;AAChB,cAAM,IAAIpM,KAAJ,CAAU,wCAAV,CAAN;AACD;;AAED,UAAIqM,SAAS,EAAb;AACA,UAAIC,cAAc,EAAlB;AACA,aAAOA,cAAcphB,MAArB,EAA6B;AAC3B,YAAIqhB,kBAAkB,IAAIN,QAAJ,CAAaH,WAAb,EAA0BQ,WAA1B,EAAuC,CAAvC,CAAtB;AACA,YAAIE,cAAcD,gBAAgBJ,SAAhB,CAA0B,CAA1B,EAA6B,IAA7B,CAAlB;AACA,YAAIM,YAAYF,gBAAgBJ,SAAhB,CAA0B,CAA1B,EAA6B,IAA7B,CAAhB;AACAE,eAAOI,SAAP,IAAoBX,YAAYY,KAAZ,CAAkBJ,cAAc,CAAhC,EAAmCA,cAAc,CAAd,GAAkBE,WAArD,CAApB;AACAF,uBAAeE,cAAc,CAA7B;AACD;;AAED,UAAI,CAACH,OAAO5B,WAAWC,IAAlB,CAAL,EAA8B;AAC5B,cAAM,IAAI1K,KAAJ,CAAU,+BAAV,CAAN;AACD;;AAED,UAAI2M,UAAU,IAAIC,WAAJ,CAAgB,OAAhB,CAAd;AACA,UAAIC,aAAaF,QAAQG,MAAR,CAAeT,OAAO5B,WAAWC,IAAlB,CAAf,CAAjB;AACA,UAAIkB,OAAOlB,KAAKqC,KAAL,CAAWF,UAAX,CAAX;AACA,aAAO,KAAKhB,YAAL,CAAkBD,IAAlB,EAAwBR,OAAxB,EAAiCiB,OAAO5B,WAAWE,GAAlB,CAAjC,CAAP;AACD;;;iCAEYiB,I,EAAMR,O,EAAS4B,W,EAAa;AACvC,UAAI,CAACpB,KAAKqB,KAAV,EAAiB;AACf,cAAM,IAAIjN,KAAJ,CAAU,4BAAV,CAAN;AACD;;AAED,UAAI4L,KAAKqB,KAAL,CAAWC,UAAX,IAAyB,KAAzB,IAAkCtB,KAAKqB,KAAL,CAAWb,OAAX,IAAsB,KAA5D,EAAmE;AACjE,cAAM,IAAIpM,KAAJ,CAAU,6BAAV,CAAN;AACD;;AAED,UAAImN,UAAU,EAAd;AACA,UAAIH,WAAJ,EAAiB;AACfG,gBAAQ,CAAR,IAAa,IAAIC,aAAJ,CAAkB,EAAlB,EAAsBhC,OAAtB,EAA+B4B,WAA/B,CAAb;AACD,OAFD,MAEO;AAAA;AAAA;AAAA;;AAAA;AACL,+BAAmBpB,KAAKuB,OAAxB,8HAAiC;AAAA,gBAAxBlc,MAAwB;;AAC/Bkc,oBAAQxhB,IAAR,CAAa,IAAIyhB,aAAJ,CAAkBnc,MAAlB,EAA0Bma,OAA1B,CAAb;AACD;AAHI;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAIN;;AAED,UAAIiC,cAAc,EAAlB;AAlBuC;AAAA;AAAA;;AAAA;AAmBvC,8BAAuBzB,KAAKyB,WAA5B,mIAAyC;AAAA,cAAhCC,UAAgC;;AACvCD,sBAAY1hB,IAAZ,CAAiB,IAAI4hB,eAAJ,CAAoBD,UAApB,EAAgCH,OAAhC,CAAjB;AACD;AArBsC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAuBvC,UAAIK,SAAS,EAAb;AACA,UAAI5B,KAAK4B,MAAT,EAAiB;AAAA;AAAA;AAAA;;AAAA;AACf,gCAAkB5B,KAAK4B,MAAvB,mIAA+B;AAAA,gBAAtBC,KAAsB;;AAC7BD,mBAAO7hB,IAAP,CAAY,IAAIyhB,aAAJ,CAAkBK,KAAlB,EAAyBrC,OAAzB,CAAZ;AACD;AAHc;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAIhB;;AAED,UAAIsC,WAAW,EAAf;AACA,UAAI9B,KAAK8B,QAAT,EAAmB;AAAA;AAAA;AAAA;;AAAA;AACjB,gCAAoB9B,KAAK8B,QAAzB,mIAAmC;AAAA,gBAA1B9T,OAA0B;;AACjC,gBAAI6T,SAAQD,OAAO5T,QAAQ+G,MAAf,CAAZ;AACA,gBAAIgN,YAAYF,OAAM7T,OAAN,CAAcyT,WAAd,CAAhB;AACA,gBAAIzT,QAAQlO,OAAZ,EAAqB;AACnB,kBAAIA,UAAUA,QAAQkO,QAAQlO,OAAhB,CAAd;AACAiiB,wBAAUjiB,OAAV,CAAkB0V,SAAlB,GAA8B1V,QAAQ0V,SAAtC;AACAuM,wBAAUjiB,OAAV,CAAkBmW,SAAlB,GAA8BnW,QAAQmW,SAAtC;AACA8L,wBAAUjiB,OAAV,CAAkB6V,KAAlB,GAA0B7V,QAAQ6V,KAAlC;AACAoM,wBAAUjiB,OAAV,CAAkBgW,KAAlB,GAA0BhW,QAAQgW,KAAlC;AACD;AACDgM,qBAAS/hB,IAAT,CAAcgiB,SAAd;AACD;AAZgB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAalB;;AAED,eAASC,UAAT,CAAoBC,WAApB,EAAiC;AAC/B,YAAI,CAACA,WAAL,EAAkB;AAChB,iBAAO,IAAP;AACD;AACD,eAAOH,SAASG,YAAY3e,KAArB,CAAP;AACD;;AAED,UAAI4e,YAAY,EAAhB;AACA,UAAIlC,KAAKkC,SAAT,EAAoB;AAAA;AAAA;AAAA;;AAAA;AAClB,gCAAqBlC,KAAKkC,SAA1B,mIAAqC;AAAA,gBAA5BxU,QAA4B;;AACnC,gBAAIyU,aAAa,IAAI5H,gBAAJ,EAAjB;AACA,gBAAI6H,MAAM1U,SAAS2U,oBAAT,IAAiC,EAA3C;;AAEAF,uBAAWG,eAAX,CAA2BjkB,KAA3B,GAAmC+jB,IAAIE,eAAJ,IAAuB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,CAA1D;AACAH,uBAAWI,SAAX,CAAqBvU,OAArB,GAA+BgU,WAAWI,IAAII,gBAAf,CAA/B;AACAL,uBAAWM,uBAAX,CAAmCpkB,KAAnC,GAA2C,CACzC+jB,IAAIM,cAAJ,IAAsB,GADmB,EAEzCN,IAAIO,eAAJ,IAAuB,GAFkB,CAA3C;AAIAR,uBAAWS,iBAAX,CAA6B5U,OAA7B,GAAuCgU,WAAWI,IAAIS,wBAAf,CAAvC;AACAV,uBAAWW,MAAX,CAAkB9U,OAAlB,GAA4BgU,WAAWhC,KAAK+C,aAAhB,CAA5B;AACAZ,uBAAWa,SAAX,CAAqBhV,OAArB,GAA+BgU,WAAWhC,KAAKiD,gBAAhB,CAA/B;AACAd,uBAAWe,iBAAX,CAA6B7kB,KAA7B,GAAsC2hB,KAAKiD,gBAAL,IAAyBjD,KAAKiD,gBAAL,CAAsBE,QAAhD,GACCnD,KAAKiD,gBAAL,CAAsBE,QADvB,GACkC,GADvE;AAEAhB,uBAAWiB,cAAX,CAA0B/kB,KAA1B,GAAkCqP,SAAS0V,cAAT,IAA2B,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAA7D;AACAjB,uBAAWkB,QAAX,CAAoBrV,OAApB,GAA8BgU,WAAWhC,KAAKsD,eAAhB,CAA9B;AACA,gBAAI,CAACnB,WAAWkB,QAAX,CAAoBrV,OAArB,IAAgCgS,KAAKoD,cAAzC,EAAyD;AACvDjB,yBAAWkB,QAAX,CAAoBrV,OAApB,GAA8B,IAAI8L,qBAAJ,CAAiB,GAAjB,EAAsB,GAAtB,EAA2B,GAA3B,EAAgC,GAAhC,CAA9B;AACD;;AAED,oBAAQpM,SAAS6V,SAAjB;AACE,mBAAK,OAAL;AACEpB,2BAAWjkB,KAAX,CAAiBslB,KAAjB,GAAyB,IAAzB;AACA;AACF,mBAAK,MAAL;AACE;AACArB,2BAAWjkB,KAAX,CAAiBslB,KAAjB,GAAyB,IAAzB;AACA;AACF;AAAS;AACPrB,2BAAWjkB,KAAX,CAAiBslB,KAAjB,GAAyB,KAAzB;AATJ;;AAYA;AACA;AACArB,uBAAWjkB,KAAX,CAAiBulB,QAAjB,GAA4B,CAAE/V,SAASgW,WAAvC;;AAEAxB,sBAAUniB,IAAV,CAAeoiB,UAAf;AACD;AAvCiB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAwCnB;;AAED,UAAIwB,YAAY3D,KAAK2D,SAArB;;AAEA,UAAIC,SAAS,EAAb;AAlGuC;AAAA;AAAA;;AAAA;AAmGvC,8BAAiB5D,KAAK4D,MAAtB,mIAA8B;AAAA,cAArBC,IAAqB;;AAC5B,cAAIC,SAAS,IAAIC,SAAJ,EAAb;AACAH,iBAAO7jB,IAAP,CAAY+jB,MAAZ;;AAF4B;AAAA;AAAA;;AAAA;AAI5B,kCAAsBD,KAAKG,UAA3B,mIAAuC;AAAA,kBAA9B1hB,SAA8B;;AACrC,kBAAIoL,YAAW,IAAf;AACA,kBAAI,cAAcpL,SAAlB,EAA6B;AAC3BoL,4BAAWwU,UAAU5f,UAAUoL,QAApB,CAAX;AACD,eAFD,MAEO;AACL;AACAA,4BAAW,IAAI6M,gBAAJ,EAAX;AACD;;AAED,kBAAI3U,aAAa,EAAjB;AACA,kBAAIC,eAAe,CAAnB;AACA;;;AAGA,kBAAIK,MAAM,IAAV;AACA,kBAAIC,MAAM,IAAV;;AAEA,mBAAK,IAAIzF,IAAT,IAAiB4B,UAAUsD,UAA3B,EAAuC;AACrC,oBAAIqe,WAAWN,UAAUrhB,UAAUsD,UAAV,CAAqBlF,IAArB,CAAV,CAAf;AACA,oBAAIghB,cAAaD,YAAYwC,SAASvC,UAArB,CAAjB;AACA7b,+BAAeoe,SAASC,KAAxB;;AAEA,oBAAIC,cAAc,IAAI/e,6BAAJ,CAChB1E,IADgB,EAEhBghB,YAAWpQ,YAAX,CAAwB,KAAK3P,QAA7B,EAAuClF,GAAG0a,YAA1C,CAFgB,EAGhBsI,kBAAkBwE,SAASxK,IAA3B,CAHgB,EAIhBwK,SAAS1e,aAJO,EAKhBmc,YAAW0C,UAAX,IAAyB,CALT,EAMhBH,SAASxe,UAAT,IAAuB,CANP,CAAlB;AAQA0e,4BAAYze,UAAZ,GAAyBue,SAASve,UAAT,IAAuB,KAAhD;;AAEA,oBAAIhF,QAAQ,UAAZ,EAAwB;AACtBwF,wBAAM+d,SAAS/d,GAAf;AACAC,wBAAM8d,SAAS9d,GAAf;AACD;;AAEDP,2BAAW7F,IAAX,CAAgBokB,WAAhB;AACD;;AAED,kBAAIE,cAAc,IAAI1e,oBAAJ,CAAcC,UAAd,EAA0BC,YAA1B,EAAwCvD,UAAUwD,IAAlD,CAAlB;;AAEA,kBAAI,aAAaxD,SAAjB,EAA4B;AAC1B,oBAAI2hB,YAAWN,UAAUrhB,UAAUgiB,OAApB,CAAf;AACA,oBAAI5C,eAAaD,YAAYwC,UAASvC,UAArB,CAAjB;;AAEA2C,4BAAY/F,cAAZ,CACEoD,aAAWpQ,YAAX,CAAwB,KAAK3P,QAA7B,EAAuClF,GAAG4a,oBAA1C,CADF,EAEE4M,UAASxe,UAAT,IAAuB,CAFzB,EAGEwe,UAAS1e,aAHX;AAKA8e,4BAAYpe,SAAZ,GAAwBge,UAAS1e,aAAjC;AACA8e,4BAAYre,eAAZ,GAA8Bie,UAASxe,UAAT,IAAuB,CAArD;AACA4e,4BAAYxe,YAAZ,GAA2Boe,UAASC,KAApC;AACD;;AAED,kBAAIhe,OAAOC,GAAX,EAAgB;AACdke,4BAAY9F,SAAZ,CAAsBrY,GAAtB,EAA2BC,GAA3B;AACD;;AAED;AACA;AACA2d,qBAAOE,UAAP,CAAkBjkB,IAAlB,CACI,KAAK4B,QAAL,CAAcsQ,qBAAd,CAAoCoS,WAApC,EAAiD3W,SAAjD,CADJ;AAED;AApE2B;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAqE7B;AAxKsC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AA0KvC,UAAI6W,YAAY,IAAI9jB,WAAJ,EAAhB;AACA,UAAI+jB,QAAQxE,KAAKyE,MAAL,CAAYzE,KAAKwE,KAAjB,CAAZ;AA3KuC;AAAA;AAAA;;AAAA;AA4KvC,8BAAmBA,MAAME,KAAzB,mIAAgC;AAAA,cAAvBC,MAAuB;;AAC9B,cAAIlgB,OAAOub,KAAK0E,KAAL,CAAWC,MAAX,CAAX;AACAJ,oBAAU/hB,OAAV,CACI,KAAKoiB,YAAL,CAAkBngB,IAAlB,EAAwBub,KAAK0E,KAA7B,EAAoCd,MAApC,CADJ;AAED;AAhLsC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAkLvC,aAAOW,SAAP;AACD;;;iCAEY9f,I,EAAMigB,K,EAAOd,M,EAAQ;AAChC,UAAIiB,SAAS,IAAIpkB,WAAJ,EAAb;AACAokB,aAAOnkB,IAAP,GAAc+D,KAAK/D,IAAnB;;AAEA,UAAI,UAAU+D,IAAd,EAAoB;AAClB,YAAIof,OAAOD,OAAOnf,KAAKof,IAAZ,CAAX;AADkB;AAAA;AAAA;;AAAA;AAElB,gCAAsBA,KAAKG,UAA3B,mIAAuC;AAAA,gBAA9B1hB,SAA8B;;AACrCuiB,mBAAOtiB,kBAAP,CAA0BD,SAA1B;AACD;AAJiB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAKnB;;AAED,UAAImC,KAAKqgB,MAAT,EAAiB;AACfD,eAAOC,MAAP,GAAgB,IAAI3kB,YAAJ,CAAiBsE,KAAKqgB,MAAtB,CAAhB;AACD,OAFD,MAEO,IAAIrgB,KAAKsgB,WAAL,IAAoBtgB,KAAKugB,QAAzB,IAAqCvgB,KAAKwgB,KAA9C,EAAqD;AAC1D,YAAIxgB,KAAKsgB,WAAT,EAAsB;AACpBF,iBAAOE,WAAP,GAAqB,IAAI5kB,YAAJ,CAAiBsE,KAAKsgB,WAAtB,CAArB;AACD;;AAED,YAAItgB,KAAKugB,QAAT,EAAmB;AACjBH,iBAAOG,QAAP,GAAkB,IAAI7kB,YAAJ,CAAiBsE,KAAKugB,QAAtB,CAAlB;AACD;;AAED,YAAIvgB,KAAKwgB,KAAT,EAAgB;AACdJ,iBAAOI,KAAP,GAAe,IAAI9kB,YAAJ,CAAiBsE,KAAKwgB,KAAtB,CAAf;AACD;AACF;;AAED,UAAIxgB,KAAK9D,QAAT,EAAmB;AAAA;AAAA;AAAA;;AAAA;AACjB,iCAAmB8D,KAAK9D,QAAxB,wIAAkC;AAAA,gBAAzBgkB,MAAyB;;AAChC,gBAAIlgB,QAAOigB,MAAMC,MAAN,CAAX;AACAE,mBAAOriB,OAAP,CAAe,KAAKoiB,YAAL,CAAkBngB,KAAlB,EAAwBigB,KAAxB,EAA+Bd,MAA/B,CAAf;AACD;AAJgB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAKlB;;AAED,aAAOiB,MAAP;AACD;;;;;;IAGGd,S,GACJ,qBAAc;AAAA;;AACZ,OAAKC,UAAL,GAAkB,EAAlB;AACD,C;;IAGGrC,e;AACJ,2BAAY3B,IAAZ,EAAkBuB,OAAlB,EAA2B;AAAA;;AACzB,SAAKlc,MAAL,GAAckc,QAAQvB,KAAK3a,MAAb,CAAd;AACA,SAAKI,UAAL,GAAkBua,KAAKva,UAAL,IAAmB,CAArC;AACA,SAAKgM,UAAL,GAAkBuO,KAAKvO,UAAL,IAAmB,IAArC;AACA,SAAK2S,UAAL,GAAkBpE,KAAKoE,UAAvB;;AAEA,SAAKc,YAAL,GAAoB,IAApB;AACA,SAAKC,aAAL,GAAqB,IAArB;AACD;;;;+BAEU;AAAA;;AACT,UAAI,CAAC,KAAKD,YAAV,EAAwB;AACtB,aAAKA,YAAL,GAAoB,KAAK7f,MAAL,CAAY6a,WAAZ,GAA0B7d,IAA1B,CAA+B,UAAC6d,WAAD,EAAiB;AAClE,iBAAO,IAAIG,QAAJ,CAAaH,WAAb,EAA0B,OAAKza,UAA/B,EAA2C,OAAKgM,UAAhD,CAAP;AACD,SAFmB,CAApB;AAGD;AACD,aAAO,KAAKyT,YAAZ;AACD;;;iCAEYvjB,Q,EAAU8J,M,EAAQ;AAC7B,UAAI,CAAC,KAAK0Z,aAAV,EAAyB;AACvB,aAAKA,aAAL,GAAqBxjB,SAASuc,kBAAT,CAA4BzS,MAA5B,EAAoC,KAAK2Z,QAAL,EAApC,CAArB;AACD;AACD,aAAO,KAAKD,aAAZ;AACD;;;;;;IAGG3D,a;AACJ,yBAAYxB,IAAZ,EAAkBR,OAAlB,EAA2BU,WAA3B,EAAwC;AAAA;;AACtC,SAAKF,IAAL,GAAYA,IAAZ;AACA,SAAKR,OAAL,GAAeA,OAAf;;AAEA,SAAK6F,YAAL,GAAoB,IAApB;AACA,SAAKlmB,QAAL,GAAgB,IAAhB;AACA,QAAI+gB,WAAJ,EAAiB;AACf,WAAKmF,YAAL,GAAoBliB,QAAQ4I,OAAR,CAAgBmU,WAAhB,CAApB;AACD;AACF;;;;kCAEa;AACZ,UAAI,CAAC,KAAKmF,YAAV,EAAwB;AACtB,YAAIhG,UAAU,KAAKW,IAAL,CAAUf,GAApB,CAAJ,EAA8B;AAC5B,cAAIqG,eAAe,KAAKtF,IAAL,CAAUf,GAAV,CAAcjW,OAAd,CAAsB,uCAAtB,EAA+D,EAA/D,CAAnB;AACA,cAAIuc,cAAcnL,WAAWoL,IAAX,CAAgBC,KAAKH,YAAL,CAAhB,EAAoC,UAACI,CAAD;AAAA,mBAAOA,EAAEC,UAAF,CAAa,CAAb,CAAP;AAAA,WAApC,CAAlB;AACA,eAAKN,YAAL,GAAoBliB,QAAQ4I,OAAR,CAAgBwZ,YAAYlgB,MAA5B,CAApB;AACA,iBAAO,KAAKggB,YAAZ;AACD;;AAED,aAAKA,YAAL,GAAoB1F,MAAMJ,WAAW,KAAKS,IAAL,CAAUf,GAArB,EAA0B,KAAKO,OAA/B,CAAN,EACfnd,IADe,CACV,UAACud,QAAD;AAAA,iBAAcA,SAASM,WAAT,EAAd;AAAA,SADU,CAApB;AAED;AACD,aAAO,KAAKmF,YAAZ;AACD;;;4BAEO5D,W,EAAa;AAAA;;AACnB,UAAI,CAAC,KAAKtiB,QAAV,EAAoB;AAClB,YAAIgZ,MAAM,IAAIY,KAAJ,EAAV;AACA,aAAK5Z,QAAL,GAAgB,IAAI+Y,qBAAJ,CAAiBC,GAAjB,CAAhB;;AAEA,YAAI,KAAK6H,IAAL,CAAUf,GAAd,EAAmB;AACjB,cAAII,UAAU,KAAKW,IAAL,CAAUf,GAApB,CAAJ,EAA8B;AAC5B9G,gBAAIG,GAAJ,GAAU,KAAK0H,IAAL,CAAUf,GAApB;AACD,WAFD,MAEO;AACL9G,gBAAIG,GAAJ,QAAa,KAAKkH,OAAlB,GAA4B,KAAKQ,IAAL,CAAUf,GAAtC;AACD;AACF,SAND,MAMO;AACL,cAAIpL,OAAO4N,YAAY,KAAKzB,IAAL,CAAU0B,UAAtB,CAAX;AACA7N,eAAKuR,QAAL,GAAgB/iB,IAAhB,CAAqB,UAAC+iB,QAAD,EAAc;AACjC,gBAAInM,OAAO,IAAI2M,IAAJ,CAAS,CAACR,QAAD,CAAT,EAAqB,EAAC3L,MAAM,OAAKuG,IAAL,CAAU6F,QAAjB,EAArB,CAAX;AACA1N,gBAAIG,GAAJ,GAAUI,OAAOQ,GAAP,CAAWC,eAAX,CAA2BF,IAA3B,CAAV;AACD,WAHD;AAID;AACF;AACD,aAAO,KAAK9Z,QAAZ;AACD;;;;;;;;;;;;;;;;;;;;;;;;;ACrZH;;AACA;;;;;;+eArBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAKA,IAAM2mB,u9BAAN;;AA4CA;AACA;AACA;AACA,IAAMC,+nBAAN;;AAwBA,IAAMC,qyBA2CJD,kBA3CI,w9DAAN;;IAyHaxL,W,WAAAA,W;;;AACX,yBAAc;AAAA;;AAAA;;AAGZ,UAAKgI,SAAL,GAAiB,MAAK0D,aAAL,CAAmB,cAAnB,CAAjB;AACA,UAAKrD,iBAAL,GAAyB,MAAKqD,aAAL,CAAmB,sBAAnB,CAAzB;AACA,UAAKnD,MAAL,GAAc,MAAKmD,aAAL,CAAmB,WAAnB,CAAd;AACA,UAAKjD,SAAL,GAAiB,MAAKiD,aAAL,CAAmB,cAAnB,CAAjB;AACA,UAAK5C,QAAL,GAAgB,MAAK4C,aAAL,CAAmB,aAAnB,CAAhB;;AAEA,UAAK3D,eAAL,GAAuB,MAAK4D,aAAL,CAAmB,iBAAnB,EAAsC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,CAAtC,CAAvB;AACA,UAAKzD,uBAAL,GAA+B,MAAKyD,aAAL,CAAmB,yBAAnB,EAA8C,CAAC,GAAD,EAAM,GAAN,CAA9C,CAA/B;AACA,UAAKhD,iBAAL,GAAyB,MAAKgD,aAAL,CAAmB,mBAAnB,EAAwC,GAAxC,CAAzB;AACA,UAAK9C,cAAL,GAAsB,MAAK8C,aAAL,CAAmB,gBAAnB,EAAqC,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAArC,CAAtB;AAZY;AAab;;;;sCAciBjmB,e,EAAiB;AACjC,UAAIkmB,iBAAiB,EAArB;;AAEA,UAAIlmB,gBAAgBiN,cAAhB,GAAiCtD,sBAAYD,OAAjD,EAA0D;AACxDwc,uBAAe,kBAAf,IAAqC,CAArC;AACD;;AAED,UAAIlmB,gBAAgBiN,cAAhB,GAAiCtD,sBAAYH,UAAjD,EAA6D;AAC3D,YAAI,KAAK8Y,SAAL,CAAevU,OAAnB,EAA4B;AAC1BmY,yBAAe,oBAAf,IAAuC,CAAvC;AACD;;AAED,YAAI,KAAKrD,MAAL,CAAY9U,OAAZ,IAAwB/N,gBAAgBiN,cAAhB,GAAiCtD,sBAAYJ,OAAzE,EAAmF;AACjF2c,yBAAe,gBAAf,IAAmC,CAAnC;AACD;;AAED,YAAI,KAAKvD,iBAAL,CAAuB5U,OAA3B,EAAoC;AAClCmY,yBAAe,qBAAf,IAAwC,CAAxC;AACD;;AAED,YAAI,KAAKnD,SAAL,CAAehV,OAAnB,EAA4B;AAC1BmY,yBAAe,eAAf,IAAkC,CAAlC;AACD;;AAED,YAAI,KAAK9C,QAAL,CAAcrV,OAAlB,EAA2B;AACzBmY,yBAAe,sBAAf,IAAyC,CAAzC;AACD;AACF;;AAED,UAAI,CAAC,CAAC,KAAKvD,iBAAL,CAAuB5U,OAAxB,IACA,EAAE/N,gBAAgBiN,cAAhB,GAAiCtD,sBAAYH,UAA/C,CADD,KAEA,KAAKgZ,uBAAL,CAA6BpkB,KAA7B,CAAmC,CAAnC,KAAyC,GAF7C,EAEkD;AAChD8nB,uBAAe,aAAf,IAAgC,CAAhC;AACD;;AAED,aAAOA,cAAP;AACD;;;wBAhDkB;AACjB,aAAO,KAAP;AACD;;;wBAEkB;AACjB,aAAOL,aAAP;AACD;;;wBAEoB;AACnB,aAAOE,eAAP;AACD;;;;EA1B8BtmB,kB;;;;;;;;;;;;;;;;;;;ACnMjC;;IAAY0mB,Q;;AACZ;;IAAYC,I;;AACZ;;IAAYC,K;;AACZ;;IAAY9L,I;;AACZ;;IAAYja,I;;AACZ;;IAAY4B,I;;AACZ;;IAAYokB,K;;AACZ;;IAAYC,I;;AACZ;;IAAYvkB,I;;AACZ;;IAAYwY,I;;;;AA7BZ;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;QAcE2L,Q,GAAAA,Q;QACAC,I,GAAAA,I;QACAC,K,GAAAA,K;QACA9L,I,GAAAA,I;QACAja,I,GAAAA,I;QACA4B,I,GAAAA,I;QACAokB,K,GAAAA,K;QACAC,I,GAAAA,I;QACAvkB,I,GAAAA,I;QACAwY,I,GAAAA,I;;;;;;;;;;;;;;;;;;;qjBCzCF;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;AAEA,IAAIgM,YAAYjM,eAAKha,MAAL,EAAhB;;AAEA,IAAMkmB,0BAA0B,IAAhC;;IAEa5iB,G,WAAAA,G;AACX,iBAA2B;AAAA,QAAfghB,MAAe,uEAAN,IAAM;;AAAA;;AACzB,SAAK1gB,MAAL,GAAcnC,eAAKzB,MAAL,EAAd;;AAEA,SAAKmmB,IAAL,GAAY1kB,eAAKzB,MAAL,EAAZ;AACA,SAAKmmB,IAAL,CAAU,CAAV,IAAe,CAAC,GAAhB;;AAEA,QAAI7B,MAAJ,EAAY;AACV7iB,qBAAKiC,aAAL,CAAmB,KAAKE,MAAxB,EAAgC,KAAKA,MAArC,EAA6C0gB,MAA7C;AACAtK,qBAAKgE,QAAL,CAAciI,SAAd,EAAyB3B,MAAzB;AACA7iB,qBAAK2b,aAAL,CAAmB,KAAK+I,IAAxB,EAA8B,KAAKA,IAAnC,EAAyCF,SAAzC;AACD;;AAED;AACA,SAAKG,GAAL,GAAW,KAAKD,IAAhB;AACD;;;;;;AAsBD;AACA;AACA;mCACezgB,G,EAAKC,G,EAAK;AACvB,UAAI4T,IAAI,IAAR;;AAEA,UAAI8M,SAAS,CAAC3gB,GAAD,EAAMC,GAAN,CAAb;;AAEA,UAAI2gB,OAAO,CAACD,OAAO9M,EAAEgN,IAAF,CAAO,CAAP,CAAP,EAAkB,CAAlB,IAAuBhN,EAAE3V,MAAF,CAAS,CAAT,CAAxB,IAAuC2V,EAAEiN,OAAF,CAAU,CAAV,CAAlD;AACA,UAAIC,OAAO,CAACJ,OAAO,IAAE9M,EAAEgN,IAAF,CAAO,CAAP,CAAT,EAAoB,CAApB,IAAyBhN,EAAE3V,MAAF,CAAS,CAAT,CAA1B,IAAyC2V,EAAEiN,OAAF,CAAU,CAAV,CAApD;AACA,UAAIE,QAAQ,CAACL,OAAO9M,EAAEgN,IAAF,CAAO,CAAP,CAAP,EAAkB,CAAlB,IAAuBhN,EAAE3V,MAAF,CAAS,CAAT,CAAxB,IAAuC2V,EAAEiN,OAAF,CAAU,CAAV,CAAnD;AACA,UAAIG,QAAQ,CAACN,OAAO,IAAE9M,EAAEgN,IAAF,CAAO,CAAP,CAAT,EAAoB,CAApB,IAAyBhN,EAAE3V,MAAF,CAAS,CAAT,CAA1B,IAAyC2V,EAAEiN,OAAF,CAAU,CAAV,CAArD;;AAEA,UAAKF,OAAOK,KAAR,IAAmBD,QAAQD,IAA/B,EAAsC;AACpC,eAAO,IAAP;AACD;AACD,UAAIC,QAAQJ,IAAZ,EAAkB;AAChBA,eAAOI,KAAP;AACD;AACD,UAAIC,QAAQF,IAAZ,EAAkB;AAChBA,eAAOE,KAAP;AACD;;AAED,UAAIC,QAAQ,CAACP,OAAO9M,EAAEgN,IAAF,CAAO,CAAP,CAAP,EAAkB,CAAlB,IAAuBhN,EAAE3V,MAAF,CAAS,CAAT,CAAxB,IAAuC2V,EAAEiN,OAAF,CAAU,CAAV,CAAnD;AACA,UAAIK,QAAQ,CAACR,OAAO,IAAE9M,EAAEgN,IAAF,CAAO,CAAP,CAAT,EAAoB,CAApB,IAAyBhN,EAAE3V,MAAF,CAAS,CAAT,CAA1B,IAAyC2V,EAAEiN,OAAF,CAAU,CAAV,CAArD;;AAEA,UAAKF,OAAOO,KAAR,IAAmBD,QAAQH,IAA/B,EAAsC;AACpC,eAAO,IAAP;AACD;AACD,UAAIG,QAAQN,IAAZ,EAAkB;AAChBA,eAAOM,KAAP;AACD;AACD,UAAIC,QAAQJ,IAAZ,EAAkB;AAChBA,eAAOI,KAAP;AACD;;AAED,UAAIC,IAAI,CAAC,CAAT;AACA,UAAIR,OAAO,CAAP,IAAYG,OAAO,CAAvB,EAA0B;AACxBK,YAAIzJ,KAAK3X,GAAL,CAAS4gB,IAAT,EAAeG,IAAf,CAAJ;AACD,OAFD,MAEO,IAAIH,OAAO,CAAX,EAAc;AACnBQ,YAAIR,IAAJ;AACD,OAFM,MAEA,IAAIG,OAAO,CAAX,EAAc;AACnBK,YAAIL,IAAJ;AACD,OAFM,MAEA;AACL;AACA,eAAO,IAAP;AACD;;AAED;AACA;AACAK,WAAKZ,uBAAL;;AAEA;AACA,UAAIa,oBAAoBtlB,eAAKQ,KAAL,CAAW,KAAKkkB,IAAhB,CAAxB;AACA1kB,qBAAKgjB,KAAL,CAAWsC,iBAAX,EAA8BA,iBAA9B,EAAiDD,CAAjD;AACArlB,qBAAKulB,GAAL,CAASD,iBAAT,EAA4BA,iBAA5B,EAA+C,KAAKnjB,MAApD;AACA,aAAOmjB,iBAAP;AACD;;;wBA7ES;AACR,aAAO,KAAKZ,IAAZ;AACD,K;sBAEOtoB,K,EAAO;AACb,WAAKsoB,IAAL,GAAY1kB,eAAKC,IAAL,CAAU,KAAKykB,IAAf,EAAqBtoB,KAArB,CAAZ;AACA4D,qBAAKwlB,SAAL,CAAe,KAAKd,IAApB,EAA0B,KAAKA,IAA/B;;AAEA,WAAKK,OAAL,GAAe/kB,eAAKoC,UAAL,CACb,MAAM,KAAKsiB,IAAL,CAAU,CAAV,CADO,EAEb,MAAM,KAAKA,IAAL,CAAU,CAAV,CAFO,EAGb,MAAM,KAAKA,IAAL,CAAU,CAAV,CAHO,CAAf;;AAKA,WAAKI,IAAL,GAAY,CACT,KAAKC,OAAL,CAAa,CAAb,IAAkB,CAAnB,GAAwB,CAAxB,GAA4B,CADlB,EAET,KAAKA,OAAL,CAAa,CAAb,IAAkB,CAAnB,GAAwB,CAAxB,GAA4B,CAFlB,EAGT,KAAKA,OAAL,CAAa,CAAb,IAAkB,CAAnB,GAAwB,CAAxB,GAA4B,CAHlB,CAAZ;AAKD;;;;;;;;;;;;;;;;;;;;;;;;;AClCH;;AACA;;AACA;;;;;;+eA7BA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;;;;AAWA,IAAMvqB,KAAKC,qBAAX,C,CAAkC;;IAE5BgrB,c;;;AACJ,4BAAc;AAAA;;AAAA;;AAGZ,UAAKxpB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;AACA,UAAKtlB,KAAL,CAAWO,YAAX,GAA0BhC,GAAGiC,SAA7B;AACA,UAAKR,KAAL,CAAWS,YAAX,GAA0BlC,GAAGkrB,GAA7B;AACA,UAAKzpB,KAAL,CAAW0pB,SAAX,GAAuB,KAAvB;AANY;AAOb;;;;wBAEkB;AACjB,aAAO,iBAAP;AACD;;;wBAEkB;AACjB;AAMD;;;wBAEoB;AACnB;AAMD;;;;EA9B0BloB,kB;;IAiChBgb,c,WAAAA,c;;;AACX,4BAAc;AAAA;;AAAA;;AAGZ,WAAKmN,YAAL,GAAoB,IAApB;AAHY;AAIb;;;;sCAEiBlmB,Q,EAAU;AAC1B,WAAKmmB,WAAL,GAAmB,KAAKD,YAAxB;AACD;;;wBAEiB;AAChB,aAAO,KAAKA,YAAZ;AACD,K;sBAEeC,W,EAAa;AAC3B,UAAI,KAAKD,YAAT,EAAuB;AACrB,aAAKjmB,qBAAL;AACD;AACD,WAAKimB,YAAL,GAAoBC,WAApB;AACA,UAAI,CAACA,WAAD,IAAgBA,YAAYxoB,MAAZ,KAAuB,CAAvC,IAA4C,CAAC,KAAKmC,SAAtD,EAAiE;AAC/D;AACD;;AAED,UAAIsmB,QAAQ,EAAZ;AACA,UAAIzD,UAAU,EAAd;;AAEA;AACA;AACA,UAAM0D,aAAaF,YAAYG,QAAZ,CAAqB3oB,MAAxC;AACA,WAAK,IAAIuD,IAAI,CAAb,EAAgBA,IAAImlB,UAApB,EAAgCnlB,GAAhC,EAAqC;AACnC,YAAMqlB,QAAQJ,YAAYG,QAAZ,CAAqBplB,CAArB,CAAd;AACAklB,cAAMhoB,IAAN,CAAWmoB,MAAM5jB,CAAjB,EAAoB,CAApB,EAAuB4jB,MAAM1jB,CAA7B;AACA8f,gBAAQvkB,IAAR,CAAa8C,CAAb,EAAgBA,MAAM,CAAN,GAAUmlB,aAAa,CAAvB,GAA2BnlB,IAAI,CAA/C,EAAkDmlB,UAAlD;AACD;AACD;AACAD,YAAMhoB,IAAN,CAAW,CAAX,EAAc,CAAd,EAAiB,CAAjB;;AAEA,UAAIke,eAAe,KAAKxc,SAAL,CAAeyc,kBAAf,CAAkCzhB,GAAG0a,YAArC,EAAmD,IAAIhX,YAAJ,CAAiB4nB,KAAjB,CAAnD,CAAnB;AACA,UAAIhiB,cAAc,KAAKtE,SAAL,CAAeyc,kBAAf,CAAkCzhB,GAAG4a,oBAArC,EAA2D,IAAI8G,WAAJ,CAAgBmG,OAAhB,CAA3D,CAAlB;;AAEA,UAAIlG,UAAU,CACZ,IAAIhZ,6BAAJ,CAAuB,UAAvB,EAAmC6Y,YAAnC,EAAiD,CAAjD,EAAoDxhB,GAAG4hB,KAAvD,EAA8D,EAA9D,EAAkE,CAAlE,CADY,CAAd;;AAIA,UAAI/b,YAAY,IAAIqD,oBAAJ,CAAcyY,OAAd,EAAuBkG,QAAQhlB,MAA/B,CAAhB;AACAgD,gBAAUgc,cAAV,CAAyBvY,WAAzB;;AAEA,UAAI9F,kBAAkB,KAAKwB,SAAL,CAAewQ,qBAAf,CAAqC3P,SAArC,EAAgD,IAAIolB,cAAJ,EAAhD,CAAtB;AACA,WAAKnlB,kBAAL,CAAwBtC,eAAxB;AACD;;;;EAlDiCQ,U;;;;;;;;;;;;;;;;;;;;;AC9CpC;;AACA;;AACA;;;;;;+eAtBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAMA,IAAM0nB,cAAc,GAApB;AACA,IAAMC,uBAAuB,KAA7B;AACA,IAAMC,yBAAyB,CAA/B;AACA,IAAMC,mBAAmB,IAAzB;AACA,IAAMC,wBAAwB,KAA9B;AACA,IAAMC,eAAe,IAArB;AACA,IAAMC,eAAe,IAArB;AACA,IAAMC,qBAAqB,GAA3B;AACA,IAAMC,qBAAqB,GAA3B;AACA,IAAMC,qBAAqB,GAA3B;AACA,IAAMC,kCAAkC,GAAxC;;IAEMC,c;;;AACJ,4BAAc;AAAA;;AAAA;;AAGZ,UAAK5qB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;;AAEA,UAAK0C,aAAL,CAAmB,aAAnB,EAAkC,CAAlC;AALY;AAMb;;;;wBAEkB;AACjB,aAAO,iBAAP;AACD;;;wBAEkB;AACjB,6KAM2B0C,kBAN3B;AAUD;;;wBAEoB;AACnB,0FAGkCJ,YAHlC,UAGmDA,YAHnD,UAGoEA,YAHpE,UAGqFC,YAHrF,8CAIgCC,kBAJhC,UAIuDA,kBAJvD,6CAKgCA,kBALhC,UAKuDC,kBALvD;AAUD;;;;EArC0BjpB,kB;;IAwCvBqpB,kB;;;AACJ,gCAAc;AAAA;;AAAA;;AAGZ,WAAK7qB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;;AAEA,WAAK0C,aAAL,CAAmB,aAAnB,EAAkC,CAAlC;AACA,WAAK8C,IAAL,GAAY,OAAK/C,aAAL,CAAmB,MAAnB,CAAZ;AANY;AAOb;;;;wBAEkB;AACjB,aAAO,sBAAP;AACD;;;wBAEkB;AACjB,2QAU2B2C,kBAV3B;AAcD;;;wBAEoB;AACnB;AAOD;;;;EAvC8BlpB,kB;;IA0CpBib,U,WAAAA,U;;;AACX,sBAAYsO,WAAZ,EAAyBphB,QAAzB,EAAmC;AAAA;;AAGjC;AAHiC;;AAIjC,WAAK/G,UAAL,GAAkB,IAAlB;;AAEA,WAAKY,cAAL,GAAsBmG,QAAtB;AACA,WAAKqhB,YAAL,GAAoBD,WAApB;AACA,WAAKE,QAAL,GAAgB,KAAhB;AACA,WAAKC,OAAL,GAAe,CAAf;AATiC;AAUlC;;;;sCAeiBznB,Q,EAAU;AAC1B,UAAI0Z,SAAS,IAAIhB,gCAAJ,EAAb;;AAEA,UAAIgP,KAAKd,wBAAwB,GAAjC;;AAEA;AACA,UAAI/L,KAAK2L,cAAc,GAAvB;AACA,UAAImB,MAAM9M,KAAK4L,oBAAf;AACA/M,aAAOW,aAAP;;AAEA;AACA,UAAIuN,WAAWlB,yBAAyB,CAAxC;AACA,WAAK,IAAIxlB,IAAI,CAAb,EAAgBA,IAAI0mB,QAApB,EAA8B,EAAE1mB,CAAhC,EAAmC;AACjC,YAAI2mB,MAAM3mB,KAAMgb,KAAK4L,EAAL,GAAU,GAAX,GAAkBF,QAAvB,CAAV;AACA,YAAIjlB,IAAIuZ,KAAK6L,GAAL,CAASF,GAAT,IAAgBpB,oBAAxB;AACA,YAAI7jB,IAAIsZ,KAAK8L,GAAL,CAASH,GAAT,IAAgBpB,oBAAxB;AACA,YAAIwB,UAAU/L,KAAKgM,KAAL,CAAWhnB,IAAIwlB,sBAAf,CAAd;AACA,gBAAQuB,OAAR;AACE,eAAK,CAAL;AACEtlB,iBAAKglB,GAAL;AACA/kB,iBAAK+kB,GAAL;AACA;AACF,eAAK,CAAL;AACEhlB,iBAAKglB,GAAL;AACA/kB,iBAAK+kB,GAAL;AACA;AACF,eAAK,CAAL;AACEhlB,iBAAKglB,GAAL;AACA/kB,iBAAK+kB,GAAL;AACA;AACF,eAAK,CAAL;AACEhlB,iBAAKglB,GAAL;AACA/kB,iBAAK+kB,GAAL;AACA;AAhBJ;;AAmBAjO,eAAOe,UAAP,CAAkB9X,CAAlB,EAAqBC,CAArB,EAAwB,CAAC8kB,EAAzB,EAA6B,CAA7B,EAAgC,CAAhC,EAAmC,CAAnC,EAAsC,CAAtC,EAAyC,CAAzC;;AAEA,YAAIxmB,IAAI,CAAR,EAAW;AACTwY,iBAAOc,YAAP,CAAoB,CAApB,EAAuBtZ,IAAE,CAAzB,EAA4BA,CAA5B;AACD;AACF;;AAEDwY,aAAOgB,WAAP;;AAEA,UAAIyN,kBAAkBzO,OAAOqD,eAAP,CAAuB/c,QAAvB,CAAtB;AACA,WAAKooB,sBAAL,GAA8BpoB,SAASsQ,qBAAT,CAA+B6X,eAA/B,EAAgD,IAAIhB,cAAJ,EAAhD,CAA9B;AACA,WAAKvmB,kBAAL,CAAwB,KAAKwnB,sBAA7B;;AAEA;AACAvN,WAAK8L,mBAAmB,GAAxB;AACAjN,aAAOsD,KAAP;AACAtD,aAAOW,aAAP;;AAEAX,aAAOe,UAAP,CAAkB,CAACI,EAAnB,EAAuBA,EAAvB,EAA2B6M,EAA3B,EAA+B,CAA/B,EAAkC,CAAlC,EAAqC,CAArC,EAAwC,CAAxC,EAA2C,CAA3C;AACAhO,aAAOe,UAAP,CAAkB,CAACI,EAAnB,EAAuB,CAACA,EAAxB,EAA4B6M,EAA5B,EAAgC,CAAhC,EAAmC,CAAnC,EAAsC,CAAtC,EAAyC,CAAzC,EAA4C,CAA5C;AACAhO,aAAOe,UAAP,CAAkBI,EAAlB,EAAsB,CAACA,EAAvB,EAA2B6M,EAA3B,EAA+B,CAA/B,EAAkC,CAAlC,EAAqC,CAArC,EAAwC,CAAxC,EAA2C,CAA3C;AACAhO,aAAOe,UAAP,CAAkBI,EAAlB,EAAsBA,EAAtB,EAA0B6M,EAA1B,EAA8B,CAA9B,EAAiC,CAAjC,EAAoC,CAApC,EAAuC,CAAvC,EAA0C,CAA1C;;AAEAhO,aAAOc,YAAP,CAAoB,CAApB,EAAuB,CAAvB,EAA0B,CAA1B;AACAd,aAAOc,YAAP,CAAoB,CAApB,EAAuB,CAAvB,EAA0B,CAA1B;;AAEAd,aAAOgB,WAAP;;AAEA,UAAI2N,gBAAgB3O,OAAOqD,eAAP,CAAuB/c,QAAvB,CAApB;AACA,UAAIsoB,eAAe,IAAIlB,kBAAJ,EAAnB;AACAkB,mBAAajB,IAAb,CAAkBhb,OAAlB,GAA4B,KAAKkb,YAAjC;AACA,WAAKgB,oBAAL,GAA4BvoB,SAASsQ,qBAAT,CAA+B+X,aAA/B,EAA8CC,YAA9C,CAA5B;AACA,WAAK1nB,kBAAL,CAAwB,KAAK2nB,oBAA7B;AACD;;;mCAEc;AACb,WAAKf,QAAL,GAAgB,IAAhB;AACD;;;iCAEY;AACX,WAAKA,QAAL,GAAgB,KAAhB;AACD;;;wCAEmB;AAClB,UAAI7B,IAAI,KAAK8B,OAAL,GAAeP,+BAAvB;AACA;AACA;AACA,UAAIsB,cAAc7C,IAAE,EAAF,GAAO,IAAEA,CAAF,GAAIA,CAAJ,GAAMA,CAAb,GAAiB,CAACA,IAAE,CAAH,KAAO,IAAEA,CAAF,GAAI,CAAX,KAAe,IAAEA,CAAF,GAAI,CAAnB,IAAsB,CAAzD;AACA,WAAKyC,sBAAL,CAA4BK,QAA5B,CAAqCD,WAArC,CAAiD9rB,KAAjD,GAAyD8rB,WAAzD;AACA,WAAKD,oBAAL,CAA0BE,QAA1B,CAAmCD,WAAnC,CAA+C9rB,KAA/C,GAAuD8rB,WAAvD;AACD;;;6BAEQrlB,S,EAAWC,U,EAAY;AAC9B,UAAI,KAAKokB,QAAL,IAAiB,KAAKC,OAAL,GAAeP,+BAApC,EAAqE;AACnE,aAAKO,OAAL,GAAevL,KAAK3X,GAAL,CAAS2iB,+BAAT,EAA0C,KAAKO,OAAL,GAAerkB,UAAzD,CAAf;AACA,aAAKslB,iBAAL;AACD,OAHD,MAGO,IAAI,CAAC,KAAKlB,QAAN,IAAkB,KAAKC,OAAL,GAAe,CAArC,EAAwC;AAC7C,aAAKA,OAAL,GAAevL,KAAK1X,GAAL,CAAS,GAAT,EAAc,KAAKijB,OAAL,GAAerkB,UAA7B,CAAf;AACA,aAAKslB,iBAAL;AACD;AACF;;;wBA7GiB;AAChB,aAAO,KAAKnB,YAAZ;AACD,K;sBAEe7qB,K,EAAO;AACrB,UAAI,KAAK6qB,YAAL,IAAqB7qB,KAAzB,EAAgC;AAC9B;AACD;;AAED,WAAK6qB,YAAL,GAAoB7qB,KAApB;AACA,WAAK6rB,oBAAL,CAA0BI,QAA1B,CAAmCtB,IAAnC,CAAwChb,OAAxC,GAAkD3P,KAAlD;AACD;;;;EAxB6BoC,U;;;;;;;;;;;;;;;;;;;;;AClGhC;;AACA;;AACA;;AACA;;AACA;;;;;;+eAxBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;IAQM8pB,e;;;AACJ,6BAA2B;AAAA,QAAfC,KAAe,uEAAP,KAAO;;AAAA;;AAAA;;AAGzB,UAAKA,KAAL,GAAaA,KAAb;;AAEA,UAAKjI,SAAL,GAAiB,MAAK0D,aAAL,CAAmB,WAAnB,CAAjB;AALyB;AAM1B;;;;wBAEkB;AACjB,aAAO,UAAP;AACD;;;wBAEkB;AACjB;AAmBD;;;wBAEoB;AACnB,UAAI,CAAC,KAAKuE,KAAV,EAAiB;AACf;AASD,OAVD,MAUO;AACL;AACA;AACA;AAwED;AACF;;;;EA1H2B9qB,kB;;IA6HjBmb,W,WAAAA,W;;;AACX,yBAA0B;AAAA,QAAd+B,OAAc,uEAAJ,EAAI;;AAAA;;AAGxB;AACA;AAJwB;;AAKxB,WAAK6N,QAAL,GAAgB,CAAC,CAAC7N,QAAQ6N,QAA1B;;AAEA;AACA;AACA,WAAKC,SAAL,GAAiB9N,QAAQ8N,SAAR,KAAsB,OAAKD,QAAL,GAAgB,EAAhB,GAAqB,EAA3C,CAAjB;AACA,WAAKE,SAAL,GAAiB/N,QAAQ+N,SAAR,IAAqB,GAAtC;;AAEA;AACA;AACA,WAAKC,QAAL,GAAgB,CAAC,CAAChO,QAAQgO,QAA1B;;AAEA;AACA;AACA,WAAKC,UAAL,GAAkB,CAAC,CAACjO,QAAQiO,UAA5B;;AAEA,WAAK1rB,QAAL,GAAgB,IAAI0Z,mBAAJ,CAAe+D,QAAQkO,QAAR,IAAoB,6BAAnC,CAAhB;;AAEA,WAAKne,SAAL,GAAiB,IAAI4d,eAAJ,CAAoB,OAAKE,QAAzB,CAAjB;AACA,WAAK9d,SAAL,CAAe4V,SAAf,CAAyBvU,OAAzB,GAAmC,OAAK7O,QAAxC;;AAEA,WAAK4rB,gBAAL,GAAwB,IAAxB;AAzBwB;AA0BzB;;;;sCAEiBppB,Q,EAAU;AAC1B,WAAKopB,gBAAL,GAAwB,IAAxB;;AAEA,UAAIC,aAAa,IAAI1Q,sBAAJ,EAAjB;;AAEA;AACA0Q,iBAAWC,QAAX,CAAoB,CAAC,CAAD,EAAI,IAAJ,EAAU,CAAC,GAAX,CAApB,EAAqC,GAArC;AACAD,iBAAWC,QAAX,CAAoB,CAAC,GAAD,EAAM,IAAN,EAAY,CAAZ,CAApB,EAAoC,GAApC;AACAD,iBAAWC,QAAX,CAAoB,CAAC,CAAD,EAAI,IAAJ,EAAU,GAAV,CAApB,EAAoC,GAApC;AACAD,iBAAWC,QAAX,CAAoB,CAAC,CAAC,GAAF,EAAO,IAAP,EAAa,CAAb,CAApB,EAAqC,GAArC;;AAEA,UAAIC,gBAAgBF,WAAWtM,eAAX,CAA2B/c,QAA3B,CAApB;;AAEA,WAAKwpB,QAAL,GAAgBxpB,SAASypB,UAAT,CAAoBF,aAApB,EAAmC,KAAKve,SAAxC,CAAhB;;AAEA,WAAK0e,YAAL,CAAkBL,UAAlB;;AAEA,WAAKM,WAAL,GAAmB,IAAI7qB,UAAJ,EAAnB;AACA,WAAK6qB,WAAL,CAAiB/oB,kBAAjB,CAAoC,KAAKwoB,gBAAzC;;AAEA,WAAKvoB,OAAL,CAAa,KAAK8oB,WAAlB;AACA,WAAK9oB,OAAL,CAAa,KAAK2oB,QAAlB;;AAEA,aAAO,KAAK/oB,eAAL,EAAP;AACD;;;iCAEY4oB,U,EAAY;AACvB,UAAI,CAAC,KAAKvpB,SAAV,EAAqB;AACnB;AACD;;AAED,UAAI,CAACupB,UAAL,EAAiB;AACfA,qBAAa,IAAI1Q,sBAAJ,EAAb;AACD,OAFD,MAEO;AACL0Q,mBAAWrM,KAAX;AACD;;AAED,UAAIpC,OAAO,MAAM,KAAKoO,SAAtB;;AAEA;AACA,UAAIY,WAAW,KAAKb,SAAL,GAAiB,GAAhC;AACA,WAAK,IAAIpmB,IAAI,CAAb,EAAgBA,IAAI,KAAKomB,SAAzB,EAAoC,EAAEpmB,CAAtC,EAAyC;AACvC,aAAK,IAAIC,IAAI,CAAb,EAAgBA,IAAI,KAAKmmB,SAAzB,EAAoC,EAAEnmB,CAAtC,EAAyC;AACvC,eAAK,IAAIC,IAAI,CAAb,EAAgBA,IAAI,KAAKkmB,SAAzB,EAAoC,EAAElmB,CAAtC,EAAyC;AACvC,gBAAIgnB,MAAM,CAAClnB,IAAIinB,QAAL,EAAehnB,IAAIgnB,QAAnB,EAA6B/mB,IAAI+mB,QAAjC,CAAV;AACA;AACA;AACA,gBAAI,KAAKX,QAAL,IAAiBY,IAAI,CAAJ,IAAS,CAA9B,EAAiC;AAC/B;AACD;;AAED;AACA,gBAAIA,IAAI,CAAJ,KAAU,CAAV,IAAeA,IAAI,CAAJ,KAAU,CAAzB,IAA8BA,IAAI,CAAJ,KAAU,CAA5C,EAA+C;AAC7C;AACD;;AAEDR,uBAAWC,QAAX,CAAoBO,GAApB,EAAyBjP,IAAzB;AACD;AACF;AACF;;AAED,UAAI,KAAKmO,SAAL,GAAiB,EAArB,EAAyB;AACvB;AACA;AACA;AACAM,mBAAW/kB,SAAX,GAAuB,IAAvB,CAJuB,CAIM;AAC9B;AACD,UAAIwlB,mBAAmBT,WAAWtM,eAAX,CAA2B,KAAKjd,SAAhC,CAAvB;;AAEA,UAAI,CAAC,KAAKspB,gBAAV,EAA4B;AAC1B,aAAKA,gBAAL,GAAwB,KAAKtpB,SAAL,CAAewQ,qBAAf,CAAqCwZ,gBAArC,EAAuD,KAAK9e,SAA5D,CAAxB;AACD,OAFD,MAEO;AACL,aAAKoe,gBAAL,CAAsBne,YAAtB,CAAmC6e,gBAAnC;AACD;AACF;;;6BAEQ3mB,S,EAAWC,U,EAAY;AAC9B,UAAI,KAAK8lB,UAAT,EAAqB;AACnBtqB,uBAAKmrB,YAAL,CAAkB,KAAKJ,WAAL,CAAiBxG,MAAnC,EAA2ChgB,YAAY,GAAvD,EAA4D,CAAC,CAAD,EAAI,CAAC,CAAL,EAAQ,CAAR,CAA5D;AACD;AACDvE,qBAAKmrB,YAAL,CAAkB,KAAKP,QAAL,CAAcrG,MAAhC,EAAwChgB,YAAY,IAApD,EAA0D,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAA1D;AACD;;;;EA9G8BrE,U;;;;;;;;;;;;;;;;;;;;;ACnIjC;;AACA;;AACA;;;;;;+eAtBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAMA,IAAMhE,KAAKC,qBAAX,C,CAAkC;;AAElC,IAAMivB,kBAAkB,EAAxB;AACA,IAAMC,uBAAuB,IAA7B;AACA,IAAMC,sBAAsB,GAA5B;AACA,IAAMC,qBAAqB,GAA3B;AACA,IAAMC,qBAAqB,GAA3B;AACA,IAAMC,sBAAsB,GAA5B;AACA,IAAMC,sBAAsB,GAA5B;;IAEMC,kB;;;AACJ,gCAAc;AAAA;;AAAA;;AAGZ,UAAKhuB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;AACA,UAAKtlB,KAAL,CAAWO,YAAX,GAA0BhC,GAAGkrB,GAA7B;AACA,UAAKzpB,KAAL,CAAWS,YAAX,GAA0BlC,GAAGmC,mBAA7B;AACA,UAAKV,KAAL,CAAWW,SAAX,GAAuBpC,GAAG0vB,MAA1B;AACA,UAAKjuB,KAAL,CAAW0U,SAAX,GAAuB,KAAvB;AAPY;AAQb;;;;wBAEkB;AACjB,aAAO,sBAAP;AACD;;;wBAEkB;AACjB;AAUD;;;wBAEoB;AACnB;AAMD;;;;EAnC8BlT,kB;;IAsCpBkb,c,WAAAA,c;;;AACX,0BAAYqO,WAAZ,EAAyBphB,QAAzB,EAAmC;AAAA;;AAAA;AAElC;;;;sCAEiBlG,Q,EAAU;AAC1B,UAAI0Z,SAAS,IAAIhB,gCAAJ,EAAb;;AAEAgB,aAAOW,aAAP;;AAEA;AACAX,aAAOe,UAAP,CAAkB,CAAlB,EAAqBwP,oBAArB,EAA2C,CAA3C,EAA8CC,mBAA9C;;AAEA,UAAIO,SAAWvO,KAAK4L,EAAL,GAAU,GAAX,GAAkBkC,eAAhC;;AAEA,UAAI1P,YAAJ;AACA,WAAK,IAAIpZ,IAAI,CAAb,EAAgBA,IAAI8oB,eAApB,EAAqC,EAAE9oB,CAAvC,EAA0C;AACxCoZ,cAAMZ,OAAOa,eAAb;;AAEA,YAAIsN,MAAM3mB,IAAIupB,MAAd;AACA,YAAI9nB,IAAIuZ,KAAK6L,GAAL,CAASF,GAAT,CAAR;AACA,YAAIjlB,IAAIsZ,KAAK8L,GAAL,CAASH,GAAT,CAAR;AACAnO,eAAOe,UAAP,CAAkB9X,IAAI0nB,mBAAtB,EAA2CJ,oBAA3C,EAAiErnB,IAAIynB,mBAArE,EAA0FF,kBAA1F;AACAzQ,eAAOe,UAAP,CAAkB9X,IAAI2nB,mBAAtB,EAA2CL,oBAA3C,EAAiErnB,IAAI0nB,mBAArE,EAA0FF,kBAA1F;;AAEA,YAAIlpB,IAAI,CAAR,EAAW;AACT;AACAwY,iBAAOc,YAAP,CAAoB,CAApB,EAAuBF,GAAvB,EAA4BA,MAAI,CAAhC;;AAEA;AACAZ,iBAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACAZ,iBAAOc,YAAP,CAAoBF,GAApB,EAAyBA,MAAI,CAA7B,EAAgCA,MAAI,CAApC;AACD;AACF;;AAEDZ,aAAOc,YAAP,CAAoB,CAApB,EAAuB,CAAvB,EAA0BF,GAA1B;;AAEAZ,aAAOc,YAAP,CAAoB,CAApB,EAAuB,CAAvB,EAA0BF,MAAI,CAA9B;AACAZ,aAAOc,YAAP,CAAoB,CAApB,EAAuBF,MAAI,CAA3B,EAA8BA,GAA9B;;AAEAZ,aAAOgB,WAAP;;AAEA,UAAIgQ,kBAAkBhR,OAAOqD,eAAP,CAAuB/c,QAAvB,CAAtB;AACA,WAAK2qB,sBAAL,GAA8B3qB,SAASsQ,qBAAT,CAA+Boa,eAA/B,EAAgD,IAAIH,kBAAJ,EAAhD,CAA9B;AACA,WAAK3pB,kBAAL,CAAwB,KAAK+pB,sBAA7B;AACD;;;;EA7CiC7rB,U;;;;;;;;;;;;;;;;;;;;;ACpDpC;;AACA;;;;;;+eArBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAKA;AACA;AACA,IAAI8rB,gBAAgB,IAAIC,OAAJ,EAApB;;IAEa1R,S,WAAAA,S;;;AACX,qBAAY8B,OAAZ,EAAqB;AAAA;;AAAA;;AAEnB,UAAK6P,IAAL,GAAY7P,QAAQ9D,GAApB;;AAEA,UAAKhN,QAAL,GAAgB,IAAhB;AACA,UAAK4gB,SAAL,GAAiB,IAAjB;AACA,UAAKC,SAAL,GAAiB,IAAjB;AANmB;AAOpB;;;;sCAEiBhrB,Q,EAAU;AAAA;;AAC1B,UAAIirB,SAASL,cAAcM,GAAd,CAAkBlrB,QAAlB,CAAb;AACA,UAAI,CAACirB,MAAL,EAAa;AACXA,iBAAS,IAAIlN,iBAAJ,CAAgB/d,QAAhB,CAAT;AACA4qB,sBAAc/Z,GAAd,CAAkB7Q,QAAlB,EAA4BirB,MAA5B;AACD;;AAED;AACA,UAAI,CAAC,KAAKF,SAAN,IAAmB,KAAK5gB,QAA5B,EAAsC;AACpC,aAAKA,QAAL,GAAgB,IAAhB;AACD;;AAED,WAAKghB,cAAL;;AAEAF,aAAOG,WAAP,CAAmB,KAAKN,IAAxB,EAA8BpqB,IAA9B,CAAmC,UAACkiB,SAAD,EAAe;AAChD,eAAK/hB,OAAL,CAAa+hB,SAAb;AACA,eAAKmI,SAAL,CAAenI,UAAUniB,eAAV,EAAf;AACA,eAAKsqB,SAAL,GAAiB,IAAjB;AACA,eAAKC,SAAL,GAAiB,IAAjB;AACD,OALD,EAKGK,KALH,CAKS,UAACC,GAAD,EAAS;AAChB,eAAKN,SAAL,CAAeM,GAAf;AACA,eAAKP,SAAL,GAAiB,IAAjB;AACA,eAAKC,SAAL,GAAiB,IAAjB;AACD,OATD;AAUD;;;qCAEgB;AAAA;;AACf,UAAI,CAAC,KAAK7gB,QAAV,EAAoB;AAClB,aAAKA,QAAL,GAAgB,IAAI3I,OAAJ,CAAY,UAAC4I,OAAD,EAAU4B,MAAV,EAAqB;AAC/C,iBAAK+e,SAAL,GAAiB3gB,OAAjB;AACA,iBAAK4gB,SAAL,GAAiBhf,MAAjB;AACD,SAHe,CAAhB;AAID;AACD,aAAO,KAAK7B,QAAZ;AACD;;;sCAEiB;AAChB,aAAO,KAAKghB,cAAL,EAAP;AACD;;;;EAhD4BrsB,U;;;;;;;;;;;;;;;;;;;;;ACP/B;;AACA;;AACA;;AACA;;;;;;+eAvBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAOA,IAAMhE,KAAKC,qBAAX,C,CAAkC;;AAElC;AACA;AACA;AACA,IAAMwwB,qBAAqB,IAAI9S,UAAJ,CAAe,CAC1C,IAD0C,EACpC,IADoC,EAC9B,IAD8B,EACxB,IADwB,EAClB,IADkB,EACZ,IADY,EACN,IADM,EACA,IADA,EACM,IADN,EACY,IADZ,EACkB,IADlB,EACwB,IADxB,EAC8B,IAD9B,EACoC,IADpC,EAC0C,IAD1C,EACgD,IADhD,EAE1C,IAF0C,EAEpC,IAFoC,EAE9B,IAF8B,EAExB,IAFwB,EAElB,IAFkB,EAEZ,IAFY,EAEN,IAFM,EAEA,IAFA,EAEM,IAFN,EAEY,IAFZ,EAEkB,IAFlB,EAEwB,IAFxB,EAE8B,IAF9B,EAEoC,IAFpC,EAE0C,IAF1C,EAEgD,IAFhD,EAG1C,IAH0C,EAGpC,IAHoC,EAG9B,IAH8B,EAGxB,IAHwB,EAGlB,IAHkB,EAGZ,IAHY,EAGN,IAHM,EAGA,IAHA,EAGM,IAHN,EAGY,IAHZ,EAGkB,IAHlB,EAGwB,IAHxB,EAG8B,IAH9B,EAGoC,IAHpC,EAG0C,IAH1C,EAGgD,IAHhD,EAI1C,IAJ0C,EAIpC,IAJoC,EAI9B,IAJ8B,EAIxB,IAJwB,EAIlB,IAJkB,EAIZ,IAJY,EAIN,IAJM,EAIA,IAJA,EAIM,IAJN,EAIY,IAJZ,EAIkB,IAJlB,EAIwB,IAJxB,EAI8B,IAJ9B,EAIoC,IAJpC,EAI0C,IAJ1C,EAIgD,IAJhD,EAK1C,IAL0C,EAKpC,IALoC,EAK9B,IAL8B,EAKxB,IALwB,EAKlB,IALkB,EAKZ,IALY,EAKN,IALM,EAKA,IALA,EAKM,IALN,EAKY,IALZ,EAKkB,IALlB,EAKwB,IALxB,EAK8B,IAL9B,EAKoC,IALpC,EAK0C,IAL1C,EAKgD,IALhD,EAM1C,IAN0C,EAMpC,IANoC,EAM9B,IAN8B,EAMxB,IANwB,EAMlB,IANkB,EAMZ,IANY,EAMN,IANM,EAMA,IANA,EAMM,IANN,EAMY,IANZ,EAMkB,IANlB,EAMwB,IANxB,EAM8B,IAN9B,EAMoC,IANpC,EAM0C,IAN1C,EAMgD,IANhD,EAO1C,IAP0C,EAOpC,IAPoC,EAO9B,IAP8B,EAOxB,IAPwB,EAOlB,IAPkB,EAOZ,IAPY,EAON,IAPM,EAOA,IAPA,EAOM,IAPN,EAOY,IAPZ,EAOkB,IAPlB,EAOwB,IAPxB,EAO8B,IAP9B,EAOoC,IAPpC,EAO0C,IAP1C,EAOgD,IAPhD,EAQ1C,IAR0C,EAQpC,IARoC,EAQ9B,IAR8B,EAQxB,IARwB,EAQlB,IARkB,EAQZ,IARY,EAQN,IARM,EAQA,IARA,EAQM,IARN,EAQY,IARZ,EAQkB,IARlB,EAQwB,IARxB,EAQ8B,IAR9B,EAQoC,IARpC,EAQ0C,IAR1C,EAQgD,IARhD,EAS1C,IAT0C,EASpC,IAToC,EAS9B,IAT8B,EASxB,IATwB,EASlB,IATkB,EASZ,IATY,EASN,IATM,EASA,IATA,EASM,IATN,EASY,IATZ,EASkB,IATlB,EASwB,IATxB,EAS8B,IAT9B,EASoC,IATpC,EAS0C,IAT1C,EASgD,IAThD,EAU1C,IAV0C,EAUpC,IAVoC,EAU9B,IAV8B,EAUxB,IAVwB,EAUlB,IAVkB,EAUZ,IAVY,EAUN,IAVM,EAUA,IAVA,EAUM,IAVN,EAUY,IAVZ,EAUkB,IAVlB,EAUwB,IAVxB,EAU8B,IAV9B,EAUoC,IAVpC,EAU0C,IAV1C,EAUgD,IAVhD,EAW1C,IAX0C,EAWpC,IAXoC,EAW9B,IAX8B,EAWxB,IAXwB,EAWlB,IAXkB,EAWZ,IAXY,EAWN,IAXM,EAWA,IAXA,EAWM,IAXN,EAWY,IAXZ,EAWkB,IAXlB,EAWwB,IAXxB,EAW8B,IAX9B,EAWoC,IAXpC,EAW0C,IAX1C,EAWgD,IAXhD,EAY1C,IAZ0C,EAYpC,IAZoC,EAY9B,IAZ8B,EAYxB,IAZwB,EAYlB,IAZkB,EAYZ,IAZY,EAYN,IAZM,EAYA,IAZA,EAYM,IAZN,EAYY,IAZZ,EAYkB,IAZlB,EAYwB,IAZxB,EAY8B,IAZ9B,EAYoC,IAZpC,EAY0C,IAZ1C,EAYgD,IAZhD,CAAf,CAA3B;;AAeA,IAAM+S,eAAe,GAArB;AACA,IAAMC,iBAAiB,IAAvB;AACA,IAAMC,iBAAiB,KAAvB;AACA,IAAMC,mBAAmB,MAAzB;AACA,IAAMC,sBAAsB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,IAAhB,CAA5B;;AAEA,IAAMC,gBAAgB,KAAtB;AACA,IAAMC,uBAAuB,KAA7B;AACA,IAAMC,gCAAgC,GAAtC;AACA,IAAMC,gCAAgC,GAAtC;AACA,IAAMC,8BAA8B,IAApC;AACA,IAAMC,8BAA8B,GAApC;AACA,IAAMC,iBAAiB,GAAvB;AACA,IAAMC,kBAAkB,EAAxB;AACA,IAAMC,uBAAuB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,CAA7B;AACA,IAAMC,8BAA8B,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,IAAhB,CAApC;;AAEA,IAAMC,wBAAwB;AAC5BC,eAAa,IADe;AAE5BC,UAAQ,IAFoB;AAG5BC,WAAS;AAHmB,CAA9B;;IAMMC,a;;;AACJ,2BAAc;AAAA;;AAAA;;AAEZ,UAAK3uB,WAAL,GAAmB/B,uBAAaI,QAAhC;AACA,UAAKE,KAAL,CAAWulB,QAAX,GAAsB,KAAtB;AACA,UAAKvlB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;AACA,UAAKtlB,KAAL,CAAWO,YAAX,GAA0BhC,GAAGkrB,GAA7B;AACA,UAAKzpB,KAAL,CAAWS,YAAX,GAA0BlC,GAAGkrB,GAA7B;AACA,UAAKzpB,KAAL,CAAW0U,SAAX,GAAuB,KAAvB;;AAEA,UAAK2b,KAAL,GAAa,MAAKtI,aAAL,CAAmB,SAAnB,CAAb;AACA,UAAKsI,KAAL,CAAWvgB,OAAX,GAAqB,IAAIwG,oBAAJ,CAAgB0Y,kBAAhB,EAAoC,EAApC,EAAwC,CAAxC,CAArB;AACA,UAAKsB,UAAL,GAAkB,MAAKtI,aAAL,CAAmB,YAAnB,EAAiCqH,mBAAjC,CAAlB;AAXY;AAYb;;;;wBAEkB;AACjB,aAAO,aAAP;AACD;;;wBAEkB;AACjB;AAUD;;;wBAEoB;AACnB,6KAO0BD,gBAP1B,qCAQwBD,cARxB;AAkBD;;;;EAnDyB3tB,kB;;AAsD5B,IAAM+uB,qaAAN;;AAiBA,IAAMC,wSAAN;;AAaA;AACA;;IACMC,c;;;AACJ,4BAAc;AAAA;;AAAA;;AAEZ,WAAKhvB,WAAL,GAAmB/B,uBAAaI,QAAhC;AACA,WAAKE,KAAL,CAAWulB,QAAX,GAAsB,KAAtB;AACA,WAAKvlB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;AACA,WAAKtlB,KAAL,CAAWO,YAAX,GAA0BhC,GAAGkrB,GAA7B;AACA,WAAKzpB,KAAL,CAAW0U,SAAX,GAAuB,KAAvB;;AAEA,WAAKgc,WAAL,GAAmB,OAAK1I,aAAL,CAAmB,aAAnB,EAAkC8H,oBAAlC,CAAnB;AARY;AASb;;;;wBAEkB;AACjB,aAAO,cAAP;AACD;;;wBAEkB;AACjB,aAAOS,oBAAP;AACD;;;wBAEoB;AACnB,aAAOC,sBAAP;AACD;;;;EAtB0BhvB,kB;;IAyBvBmvB,oB;;;AACJ,kCAAc;AAAA;;AAAA;;AAEZ,WAAKlvB,WAAL,GAAmB/B,uBAAaI,QAAhC;AACA,WAAKE,KAAL,CAAWulB,QAAX,GAAsB,KAAtB;AACA,WAAKvlB,KAAL,CAAWslB,KAAX,GAAmB,IAAnB;AACA,WAAKtlB,KAAL,CAAWO,YAAX,GAA0BhC,GAAGkrB,GAA7B;AACA,WAAKzpB,KAAL,CAAWW,SAAX,GAAuBpC,GAAGqyB,MAA1B;AACA,WAAK5wB,KAAL,CAAW0U,SAAX,GAAuB,KAAvB;;AAEA,WAAKgc,WAAL,GAAmB,OAAK1I,aAAL,CAAmB,aAAnB,EAAkC+H,2BAAlC,CAAnB;AATY;AAUb;;AAED;;;;;wBACmB;AACjB,aAAO,gBAAP;AACD;;;wBAEkB;AACjB,aAAOQ,oBAAP;AACD;;;wBAEoB;AACnB,aAAOC,sBAAP;AACD;;;;EAxBgChvB,kB;;IA2BtBqvB,a,WAAAA,a;;;AACX,2BAAc;AAAA;;AAAA;;AAGZ,WAAKC,iBAAL,GAAyB,EAAzB;;AAEA,WAAKC,YAAL,GAAoB,EAApB;AACA,WAAKC,eAAL,GAAuB,IAAvB;AACA,WAAKC,yBAAL,GAAiC,IAAjC;AACA,WAAKC,OAAL,GAAe,IAAf;AACA,WAAKC,QAAL,GAAgB,IAAhB;;AAEA,WAAKC,kBAAL,GAA0B,CAA1B;AACA,WAAKC,aAAL,GAAqB,CAArB;AACA,WAAKC,cAAL,GAAsB,CAAtB;AAbY;AAcb;;;;sCAEiB7tB,Q,EAAU;AAC1B,WAAKstB,YAAL,GAAoB,EAApB;AACA,WAAKC,eAAL,GAAuB,IAAvB;AACA,WAAKC,yBAAL,GAAiC,IAAjC;AACA,WAAKC,OAAL,GAAe,IAAf;AACA,WAAKC,QAAL,GAAgB,IAAhB;;AAEA,WAAKC,kBAAL,GAA0B,CAA1B;AACA,WAAKC,aAAL,GAAqB,CAArB;AACA,WAAKC,cAAL,GAAsB,CAAtB;AACD;;;sCAEiBC,c,EAAsC;AAAA,UAAtBC,UAAsB,uEAAT,OAAS;;AACtD,WAAKR,eAAL,GAAuBO,cAAvB;AACA,WAAKP,eAAL,CAAqBruB,OAArB,GAA+B,KAA/B;AACA;AACA,WAAK2B,OAAL,CAAa,KAAK0sB,eAAlB;AACA,WAAKC,yBAAL,GAAiCO,UAAjC;AACD;;;kCAEaC,U,EAAY;AACxB,UAAI,CAAC,KAAKT,eAAV,EAA2B;AACvB;AACH;;AAED,UAAIU,aAAa,IAAjB;AACA,UAAI,KAAKN,kBAAL,GAA0B,KAAKL,YAAL,CAAkB3vB,MAAhD,EAAwD;AACtDswB,qBAAa,KAAKX,YAAL,CAAkB,KAAKK,kBAAvB,CAAb;AACD,OAFD,MAEO;AACLM,qBAAa,KAAKV,eAAL,CAAqBzsB,KAArB,EAAb;AACA,aAAKD,OAAL,CAAaotB,UAAb;AACA,aAAKX,YAAL,CAAkBlvB,IAAlB,CAAuB6vB,UAAvB;AACD;AACD,WAAKN,kBAAL,GAA0B,CAAC,KAAKA,kBAAL,GAA0B,CAA3B,IAAgC,KAAKN,iBAA/D;;AAEAY,iBAAW9K,MAAX,GAAoB6K,UAApB;AACAC,iBAAW/uB,OAAX,GAAqB,IAArB;AACD;;;oCAEegvB,S,EAAW;AACzB;AACA,UAAI,CAAC,KAAKT,OAAN,IAAiB,KAAK3tB,SAA1B,EAAqC;AACnC,aAAK2tB,OAAL,GAAe,CAAC,KAAKU,gBAAL,EAAD,CAAf;AACA,aAAKttB,OAAL,CAAa,KAAK4sB,OAAL,CAAa,CAAb,CAAb;AACD;;AAED,UAAIb,QAAQ,IAAZ;AACA,UAAI,KAAKgB,aAAL,GAAqB,KAAKH,OAAL,CAAa9vB,MAAtC,EAA8C;AAC5CivB,gBAAQ,KAAKa,OAAL,CAAa,KAAKG,aAAlB,CAAR;AACD,OAFD,MAEO;AACLhB,gBAAQ,KAAKa,OAAL,CAAa,CAAb,EAAgB3sB,KAAhB,EAAR;AACA,aAAKD,OAAL,CAAa+rB,KAAb;AACA,aAAKa,OAAL,CAAarvB,IAAb,CAAkBwuB,KAAlB;AACD;AACD,WAAKgB,aAAL,GAAqB,CAAC,KAAKA,aAAL,GAAqB,CAAtB,IAA2B,KAAKP,iBAArD;;AAEAT,YAAMzJ,MAAN,GAAe+K,UAAUhsB,eAAzB;AACA0qB,YAAM1tB,OAAN,GAAgB,IAAhB;AACD;;;8BAESkvB,S,EAAW;AACnB;AACA,UAAI,CAAC,KAAKV,QAAN,IAAkB,KAAK5tB,SAA3B,EAAsC;AACpC,aAAK4tB,QAAL,GAAgB,CAAC,KAAKW,iBAAL,EAAD,CAAhB;AACA,aAAKxtB,OAAL,CAAa,KAAK6sB,QAAL,CAAc,CAAd,CAAb;AACD;;AAED,UAAIY,SAAS,IAAb;AACA,UAAI,KAAKT,cAAL,GAAsB,KAAKH,QAAL,CAAc/vB,MAAxC,EAAgD;AAC9C2wB,iBAAS,KAAKZ,QAAL,CAAc,KAAKG,cAAnB,CAAT;AACD,OAFD,MAEO;AACLS,iBAAS,KAAKZ,QAAL,CAAc,CAAd,EAAiB5sB,KAAjB,EAAT;AACA,aAAKD,OAAL,CAAaytB,MAAb;AACA,aAAKZ,QAAL,CAActvB,IAAd,CAAmBkwB,MAAnB;AACD;AACD,WAAKT,cAAL,GAAsB,CAAC,KAAKA,cAAL,GAAsB,CAAvB,IAA4B,KAAKR,iBAAvD;;AAEAiB,aAAOlL,WAAP,GAAqBgL,SAArB;AACAE,aAAOpvB,OAAP,GAAiB,IAAjB;AACD;;;0BAEK+b,O,EAAS;AACb,UAAI,CAACA,OAAL,EAAc;AACZA,kBAAUsR,qBAAV;AACD;AACD,UAAI,KAAKe,YAAL,IAAqBrS,QAAQuR,WAAjC,EAA8C;AAAA;AAAA;AAAA;;AAAA;AAC5C,+BAAuB,KAAKc,YAA5B,8HAA0C;AAAA,gBAAjCW,UAAiC;;AACxCA,uBAAW/uB,OAAX,GAAqB,KAArB;AACD;AAH2C;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAI5C,aAAKyuB,kBAAL,GAA0B,CAA1B;AACD;AACD,UAAI,KAAKF,OAAL,IAAgBxS,QAAQwR,MAA5B,EAAoC;AAAA;AAAA;AAAA;;AAAA;AAClC,gCAAkB,KAAKgB,OAAvB,mIAAgC;AAAA,gBAAvBb,KAAuB;;AAC9BA,kBAAM1tB,OAAN,GAAgB,KAAhB;AACD;AAHiC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAIlC,aAAK0uB,aAAL,GAAqB,CAArB;AACD;AACD,UAAI,KAAKF,QAAL,IAAiBzS,QAAQyR,OAA7B,EAAsC;AAAA;AAAA;AAAA;;AAAA;AACpC,gCAAmB,KAAKgB,QAAxB,mIAAkC;AAAA,gBAAzBY,MAAyB;;AAChCA,mBAAOpvB,OAAP,GAAiB,KAAjB;AACD;AAHmC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAIpC,aAAK2uB,cAAL,GAAsB,CAAtB;AACD;AACF;;;uCAEkB;AACjB,UAAInpB,KAAK,KAAK5E,SAAL,CAAeiF,GAAxB;;AAEA,UAAIwpB,KAAK9C,iBAAiB,GAA1B;AACA,UAAI+C,KAAKhD,YAAT;;AAEA;AACA,UAAIiD,aAAa;AACjB;AACE,SAFe,EAEVF,EAFU,EAEN,GAFM,EAED,GAFC,EAEI,GAFJ,EAGf,GAHe,EAGVA,EAHU,EAGN,CAACC,EAHK,EAGD,GAHC,EAGI,GAHJ,EAIf,GAJe,EAIV,CAACD,EAJS,EAIL,GAJK,EAIA,GAJA,EAIK,GAJL,EAKf,GALe,EAKV,CAACA,EALS,EAKL,CAACC,EALI,EAKA,GALA,EAKK,GALL,EAOfD,EAPe,EAOX,GAPW,EAON,GAPM,EAOD,GAPC,EAOI,GAPJ,EAQfA,EARe,EAQX,GARW,EAQN,CAACC,EARK,EAQD,GARC,EAQI,GARJ,EASf,CAACD,EATc,EASV,GATU,EASL,GATK,EASA,GATA,EASK,GATL,EAUf,CAACA,EAVc,EAUV,GAVU,EAUL,CAACC,EAVI,EAUA,GAVA,EAUK,GAVL,EAYf,GAZe,EAYV,CAACD,EAZS,EAYL,GAZK,EAYA,GAZA,EAYK,GAZL,EAaf,GAbe,EAaV,CAACA,EAbS,EAaL,CAACC,EAbI,EAaA,GAbA,EAaK,GAbL,EAcf,GAde,EAcVD,EAdU,EAcN,GAdM,EAcD,GAdC,EAcI,GAdJ,EAef,GAfe,EAeVA,EAfU,EAeN,CAACC,EAfK,EAeD,GAfC,EAeI,GAfJ,EAiBf,CAACD,EAjBc,EAiBV,GAjBU,EAiBL,GAjBK,EAiBA,GAjBA,EAiBK,GAjBL,EAkBf,CAACA,EAlBc,EAkBV,GAlBU,EAkBL,CAACC,EAlBI,EAkBA,GAlBA,EAkBK,GAlBL,EAmBfD,EAnBe,EAmBX,GAnBW,EAmBN,GAnBM,EAmBD,GAnBC,EAmBI,GAnBJ,EAoBfA,EApBe,EAoBX,GApBW,EAoBN,CAACC,EApBK,EAoBD,GApBC,EAoBI,GApBJ,CAAjB;AAsBA,UAAIE,eAAe,CACjB,CADiB,EACd,CADc,EACX,CADW,EACR,CADQ,EACL,CADK,EACF,CADE,EAEjB,CAFiB,EAEd,CAFc,EAEX,CAFW,EAER,CAFQ,EAEL,CAFK,EAEF,CAFE,EAGjB,CAHiB,EAGd,CAHc,EAGX,EAHW,EAGP,CAHO,EAGJ,EAHI,EAGA,EAHA,EAIjB,EAJiB,EAIb,EAJa,EAIT,EAJS,EAIL,EAJK,EAID,EAJC,EAIG,EAJH,CAAnB;;AAOA,UAAIC,oBAAoB,KAAK7uB,SAAL,CAAeyc,kBAAf,CAAkC7X,GAAG8Q,YAArC,EAAmD,IAAIhX,YAAJ,CAAiBiwB,UAAjB,CAAnD,CAAxB;AACA,UAAIG,mBAAmB,KAAK9uB,SAAL,CAAeyc,kBAAf,CAAkC7X,GAAGgR,oBAArC,EAA2D,IAAI8G,WAAJ,CAAgBkS,YAAhB,CAA3D,CAAvB;;AAEA,UAAIG,kBAAkBH,aAAa/wB,MAAnC;;AAEA,UAAImxB,eAAe,CACjB,IAAIrrB,6BAAJ,CAAuB,UAAvB,EAAmCkrB,iBAAnC,EAAsD,CAAtD,EAAyDjqB,GAAGgY,KAA5D,EAAmE,EAAnE,EAAuE,CAAvE,CADiB,EAEjB,IAAIjZ,6BAAJ,CAAuB,YAAvB,EAAqCkrB,iBAArC,EAAwD,CAAxD,EAA2DjqB,GAAGgY,KAA9D,EAAqE,EAArE,EAAyE,EAAzE,CAFiB,CAAnB;;AAKA,UAAIqS,iBAAiB,IAAI/qB,oBAAJ,CAAc8qB,YAAd,EAA4BD,eAA5B,CAArB;AACAE,qBAAepS,cAAf,CAA8BiS,gBAA9B;;AAEA,UAAII,gBAAgB,IAAIrC,aAAJ,EAApB;;AAEA,UAAIsC,uBAAuB,KAAKnvB,SAAL,CAAewQ,qBAAf,CAAqCye,cAArC,EAAqDC,aAArD,CAA3B;AACA,UAAI3e,WAAW,IAAIvR,UAAJ,EAAf;AACAuR,eAASzP,kBAAT,CAA4BquB,oBAA5B;AACA,aAAO5e,QAAP;AACD;;;wCAEmB;AAClB,UAAI3L,KAAK,KAAK5E,SAAL,CAAeiF,GAAxB;;AAEA;AACA;AACA;AACA,UAAImqB,cAAc,EAAlB;AACA,UAAIC,gBAAgB,EAApB;;AAEA,UAAI1E,SAAU,MAAMvO,KAAK4L,EAAZ,GAAkBsE,eAA/B;;AAEA;AACA,WAAK,IAAIlrB,IAAI,CAAb,EAAgBA,IAAIkrB,eAApB,EAAqC,EAAElrB,CAAvC,EAA0C;AACxC,YAAI2mB,MAAM3mB,IAAIupB,MAAd;AACA,YAAI9nB,IAAIuZ,KAAK6L,GAAL,CAASF,GAAT,CAAR;AACA,YAAIjlB,IAAIsZ,KAAK8L,GAAL,CAASH,GAAT,CAAR;AACAqH,oBAAY9wB,IAAZ,CAAiBuE,IAAIkpB,aAArB,EAAoCjpB,IAAIipB,aAAxC,EAAuD,GAAvD,EAA4DM,cAA5D;;AAEA,YAAIjrB,IAAI,CAAR,EAAW;AACTiuB,wBAAc/wB,IAAd,CAAmB,CAAnB,EAAsB8C,IAAE,CAAxB,EAA2BA,CAA3B;AACD;AACF;;AAED,UAAIkuB,cAAchD,eAAlB;;AAEA;AACA,WAAK,IAAIlrB,KAAI,CAAb,EAAgBA,KAAIkrB,eAApB,EAAqC,EAAElrB,EAAvC,EAA0C;AACxC,YAAI2mB,OAAM3mB,KAAIupB,MAAd;AACA,YAAI9nB,MAAIuZ,KAAK6L,GAAL,CAASF,IAAT,CAAR;AACA,YAAIjlB,KAAIsZ,KAAK8L,GAAL,CAASH,IAAT,CAAR;AACAqH,oBAAY9wB,IAAZ,CAAiBuE,MAAIkpB,aAArB,EAAoCjpB,KAAIipB,aAAxC,EACIE,6BADJ,EACmCE,2BADnC;AAEAiD,oBAAY9wB,IAAZ,CAAiBuE,MAAImpB,oBAArB,EAA2ClpB,KAAIkpB,oBAA/C,EACIE,6BADJ,EACmCE,2BADnC;;AAGA,YAAIhrB,KAAI,CAAR,EAAW;AACT,cAAIoZ,OAAM8U,cAAeluB,KAAI,CAA7B;AACAiuB,wBAAc/wB,IAAd,CAAmBkc,OAAI,CAAvB,EAA0BA,OAAI,CAA9B,EAAiCA,IAAjC;AACA6U,wBAAc/wB,IAAd,CAAmBkc,OAAI,CAAvB,EAA0BA,OAAI,CAA9B,EAAiCA,IAAjC;AACD;AACF;;AAED,UAAIA,MAAM8U,cAAehD,kBAAkB,CAA3C;AACA+C,oBAAc/wB,IAAd,CAAmBkc,MAAI,CAAvB,EAA0BA,MAAI,CAA9B,EAAiC8U,WAAjC;AACAD,oBAAc/wB,IAAd,CAAmBkc,MAAI,CAAvB,EAA0B8U,cAAY,CAAtC,EAAyCA,WAAzC;;AAEA,UAAIC,qBAAqB,KAAKvvB,SAAL,CAAeyc,kBAAf,CAAkC7X,GAAG8Q,YAArC,EAAmD,IAAIhX,YAAJ,CAAiB0wB,WAAjB,CAAnD,CAAzB;AACA,UAAII,oBAAoB,KAAKxvB,SAAL,CAAeyc,kBAAf,CAAkC7X,GAAGgR,oBAArC,EAA2D,IAAI8G,WAAJ,CAAgB2S,aAAhB,CAA3D,CAAxB;;AAEA,UAAII,mBAAmBJ,cAAcxxB,MAArC;;AAEA,UAAI6xB,gBAAgB,CAClB,IAAI/rB,6BAAJ,CAAuB,UAAvB,EAAmC4rB,kBAAnC,EAAuD,CAAvD,EAA0D3qB,GAAGgY,KAA7D,EAAoE,EAApE,EAAwE,CAAxE,CADkB,CAApB;;AAIA,UAAI+S,kBAAkB,IAAIzrB,oBAAJ,CAAcwrB,aAAd,EAA6BD,gBAA7B,CAAtB;AACAE,sBAAgB9S,cAAhB,CAA+B2S,iBAA/B;;AAEA,UAAII,iBAAiB,IAAI1C,cAAJ,EAArB;AACA,UAAI2C,uBAAuB,IAAIzC,oBAAJ,EAA3B;;AAEA;AACA;AACA;AACA,UAAI0C,wBAAwB,KAAK9vB,SAAL,CAAewQ,qBAAf,CAAqCmf,eAArC,EAAsDC,cAAtD,CAA5B;AACA,UAAIG,8BAA8B,KAAK/vB,SAAL,CAAewQ,qBAAf,CAAqCmf,eAArC,EAAsDE,oBAAtD,CAAlC;AACA,UAAItf,WAAW,IAAIvR,UAAJ,EAAf;AACAuR,eAASzP,kBAAT,CAA4BgvB,qBAA5B;AACAvf,eAASzP,kBAAT,CAA4BivB,2BAA5B;AACA,aAAOxf,QAAP;AACD;;;;EAzPgCvR,U;;;;;;;;;;;;;;;;;;;;;ACrLnC;;AACA;;AACA;;;;;;;;+eA3BA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;;AASA,IAAMgxB,eAAe,GAArB;;IAEMC,oB;;;;;;;;;;;wBACe;AACjB,aAAO,oBAAP;AACD;;;wBAEkB;AACjB;AAMD;;;wBAEoB;AACnB;AAOD;;;;EAtBgChyB,kB;;IAyBtBiyB,gB,WAAAA,gB;;;AACX,8BAAc;AAAA;;AAAA;;AAGZ,WAAKC,KAAL,GAAa,EAAb;AACA,WAAKC,UAAL,GAAkB,EAAlB;AAJY;AAKb;;;;sCAEiBlwB,Q,EAAU;AAC1B,WAAKmwB,UAAL;AACA,WAAKD,UAAL,GAAkB,EAAlB;;AAEA,UAAIE,WAAW,EAAf;AACA,UAAIC,iBAAiB,EAArB;AACA,UAAI1N,UAAU,EAAd;;AAEA,UAAMjS,QAAQ,GAAd;AACA,UAAM4f,YAAY,IAAlB;;AAEA,eAASC,aAAT,CAAuBC,EAAvB,EAA2BC,IAA3B,EAAiCC,GAAjC,EAAsCC,KAAtC,EAA6CC,MAA7C,EAAqD;AACnD,YAAItW,MAAM8V,SAASzyB,MAAT,GAAkB,CAA5B;AACAyyB,iBAAShyB,IAAT,CACIqyB,IADJ,EACUC,GADV,EAEIC,KAFJ,EAEWD,GAFX,EAGIC,KAHJ,EAGWC,MAHX,EAIIH,IAJJ,EAIUG,MAJV;;AAMAP,uBAAeG,EAAf,IAAqB,CACnBlW,GADmB,EACdA,MAAI,CADU,EACPA,MAAI,CADG,EAEnBA,GAFmB,EAEdA,MAAI,CAFU,EAEPA,MAAI,CAFG,CAArB;AAID;;AAED,UAAIuW,aAAa,EAAjB;AACA,eAASC,eAAT,CAAyB/M,CAAzB,EAA4B6D,QAA5B,EAAsC;AACpC,YAAImJ,YAAY;AACdA,qBAAWhN,CADG;AAEdhU,kBAAQ4S,QAAQhlB,MAAR,GAAiB,CAFX;AAGd4kB,iBAAO;AAHO,SAAhB;;AAMA,aAAK,IAAIrhB,IAAI,CAAb,EAAgBA,IAAI0mB,SAASjqB,MAA7B,EAAqC,EAAEuD,CAAvC,EAA0C;AACxC,cAAIoZ,MAAMsN,SAAS1mB,CAAT,CAAV;AACA,cAAI8vB,UAAUX,eAAe/V,GAAf,CAAd;AACAyW,oBAAUxO,KAAV,IAAmByO,QAAQrzB,MAA3B;AACAglB,kBAAQvkB,IAAR,mCAAgB4yB,OAAhB;AACD;;AAEDH,mBAAW9M,CAAX,IAAgBgN,SAAhB;AACD;;AAED;;;;;;;;AAUAR,oBAAc,CAAd,EAAiB,CAAC,CAAlB,EAAqB,CAArB,EAAwB7f,KAAxB,EAA+B,IAAE4f,SAAjC;AACAC,oBAAc,CAAd,EAAiB,CAAC,CAAlB,EAAqBD,YAAU,GAA/B,EAAoC5f,KAApC,EAA2C,CAAC4f,SAAD,GAAW,GAAtD;AACAC,oBAAc,CAAd,EAAiB,CAAC,CAAlB,EAAqB,CAAC,CAAD,GAAGD,SAAxB,EAAmC5f,KAAnC,EAA0C,CAAC,CAA3C;AACA6f,oBAAc,CAAd,EAAiB,CAAC,CAAlB,EAAqB,CAArB,EAAwB,CAAC,CAAD,GAAGD,SAA3B,EAAsC,CAACA,SAAD,GAAW,GAAjD;AACAC,oBAAc,CAAd,EAAiB7f,QAAM4f,SAAvB,EAAkC,CAAlC,EAAqC5f,KAArC,EAA4C,CAAC4f,SAAD,GAAW,GAAvD;AACAC,oBAAc,CAAd,EAAiB,CAAC,CAAlB,EAAqBD,YAAU,GAA/B,EAAoC,CAAC,CAAD,GAAGA,SAAvC,EAAkD,CAAC,CAAnD;AACAC,oBAAc,CAAd,EAAiB7f,QAAM4f,SAAvB,EAAkCA,YAAU,GAA5C,EAAiD5f,KAAjD,EAAwD,CAAC,CAAzD;;AAGAogB,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,EAAgB,CAAhB,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,EAAgB,CAAhB,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,EAAgB,CAAhB,EAAmB,CAAnB,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,EAAgB,CAAhB,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,EAAgB,CAAhB,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,EAAI,CAAJ,EAAO,CAAP,EAAU,CAAV,EAAa,CAAb,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,CAArB;AACAA,sBAAgB,GAAhB,EAAqB,EAArB;AACAA,sBAAgB,GAAhB,EAAqB,CAAC,CAAD,CAArB,EAjF0B,CAiFC;;AAE3B,UAAIpsB,KAAK1E,SAAS0E,EAAlB;AACA,UAAI4X,eAAetc,SAASuc,kBAAT,CAA4B7X,GAAG8Q,YAA/B,EAA6C,IAAIhX,YAAJ,CAAiB4xB,QAAjB,CAA7C,CAAnB;AACA,UAAIhsB,cAAcpE,SAASuc,kBAAT,CAA4B7X,GAAGgR,oBAA/B,EAAqD,IAAI8G,WAAJ,CAAgBmG,OAAhB,CAArD,CAAlB;;AAEA,UAAIsO,gBAAgB,CAClB,IAAIxtB,6BAAJ,CAAuB,UAAvB,EAAmC6Y,YAAnC,EAAiD,CAAjD,EAAoD5X,GAAGgY,KAAvD,EAA8D,CAA9D,EAAiE,CAAjE,CADkB,CAApB;;AAIA,UAAI/b,YAAY,IAAIqD,oBAAJ,CAAcitB,aAAd,EAA6BtO,QAAQhlB,MAArC,CAAhB;AACAgD,gBAAUgc,cAAV,CAAyBvY,WAAzB;;AAEA,UAAI2H,WAAW,IAAIgkB,oBAAJ,EAAf;;AAEA,WAAKmB,eAAL,GAAuB,EAAvB;AACA,WAAK,IAAIC,IAAT,IAAiBN,UAAjB,EAA6B;AAC3B,YAAIO,UAAUP,WAAWM,IAAX,CAAd;AACAxwB,kBAAUuD,YAAV,GAAyBktB,QAAQ7O,KAAjC;AACA5hB,kBAAU0D,eAAV,GAA4B+sB,QAAQrhB,MAApC;AACA,aAAKmhB,eAAL,CAAqBC,IAArB,IAA6BnxB,SAASsQ,qBAAT,CAA+B3P,SAA/B,EAA0CoL,QAA1C,CAA7B;AACD;;AAED,WAAKslB,IAAL,GAAY,KAAKpB,KAAjB;AACD;;;wBAEU;AACT,aAAO,KAAKA,KAAZ;AACD,K;sBAEQvzB,K,EAAO;AACd,WAAKuzB,KAAL,GAAavzB,KAAb;;AAEA,UAAIwE,IAAI,CAAR;AACA,UAAIowB,gBAAgB,IAApB;AACA,aAAOpwB,IAAIxE,MAAMiB,MAAjB,EAAyB,EAAEuD,CAA3B,EAA8B;AAC5B,YAAIxE,MAAMwE,CAAN,KAAY,KAAKgwB,eAArB,EAAsC;AACpCI,0BAAgB,KAAKJ,eAAL,CAAqBx0B,MAAMwE,CAAN,CAArB,CAAhB;AACD,SAFD,MAEO;AACLowB,0BAAgB,KAAKJ,eAAL,CAAqB,GAArB,CAAhB;AACD;;AAED,YAAI,KAAKhB,UAAL,CAAgBvyB,MAAhB,IAA0BuD,CAA9B,EAAiC;AAC/B,cAAI4B,OAAO,IAAIhE,UAAJ,EAAX;AACAgE,eAAKlC,kBAAL,CAAwB0wB,aAAxB;AACA,cAAIvhB,SAAS7O,IAAI4uB,YAAjB;AACAhtB,eAAKsgB,WAAL,GAAmB,CAACrT,MAAD,EAAS,CAAT,EAAY,CAAZ,CAAnB;AACA,eAAKmgB,UAAL,CAAgB9xB,IAAhB,CAAqB0E,IAArB;AACA,eAAKjC,OAAL,CAAaiC,IAAb;AACD,SAPD,MAOO;AACL;AACA;AACA;AACA,eAAKotB,UAAL,CAAgBhvB,CAAhB,EAAmBjB,qBAAnB;AACA,eAAKiwB,UAAL,CAAgBhvB,CAAhB,EAAmBN,kBAAnB,CAAsC0wB,aAAtC;AACA,eAAKpB,UAAL,CAAgBhvB,CAAhB,EAAmBhC,OAAnB,GAA6B,IAA7B;AACD;AACF;;AAED;AACA,aAAOgC,IAAI,KAAKgvB,UAAL,CAAgBvyB,MAA3B,EAAmC,EAAEuD,CAArC,EAAwC;AACtC,aAAKgvB,UAAL,CAAgBhvB,CAAhB,EAAmBhC,OAAnB,GAA6B,KAA7B;AACD;AACF;;;;EAxJmCJ,U;;;;;;;;;;;;;;;;;;;;;AChCtC;;AACA;;AACA;;AACA;;;;;;+eA3BA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;AASA,IAAMhE,KAAKC,qBAAX,C,CAAkC;;IAE5Bw2B,c;;;AACJ,4BAAc;AAAA;;AAAA;;AAEZ,UAAKvzB,WAAL,GAAmB/B,uBAAaE,GAAhC;AACA,UAAKI,KAAL,CAAWW,SAAX,GAAuBpC,GAAG0vB,MAA1B;AACA,UAAKjuB,KAAL,CAAW0U,SAAX,GAAuB,KAAvB;;AAEA,UAAKiP,KAAL,GAAa,MAAKoE,aAAL,CAAmB,SAAnB,CAAb;;AAEA,UAAKkN,mBAAL,GAA2B,MAAKjN,aAAL,CAAmB,qBAAnB,EACuB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACC,GADD,EACM,GADN,EACW,GADX,EACgB,GADhB,CADvB,EAE6C,CAF7C,CAA3B;AARY;AAWb;;;;wBAEkB;AACjB,aAAO,QAAP;AACD;;;wBAEkB;AACjB;AAmBD;;;wBAEoB;AACnB;AAOD;;;;EAhD0BxmB,kB;;IAmDhBqb,U,WAAAA,U;;;AACX,sBAAY6B,OAAZ,EAAqB;AAAA;;AAAA;;AAGnB,WAAK6P,IAAL,GAAY7P,QAAQ9D,GAApB;AACA,WAAKsa,YAAL,GAAoBxW,QAAQyW,WAAR,IAAuB,MAA3C;AACA,WAAKC,UAAL,GAAkB1W,QAAQ2W,SAAR,IAAqB,CAAvC;AALmB;AAMpB;;;;sCAEiB5xB,Q,EAAU;AAC1B,UAAIowB,WAAW,EAAf;AACA,UAAIzN,UAAU,EAAd;;AAEA,UAAIkP,cAAc,EAAlB;AACA,UAAIC,cAAc,EAAlB;;AAEA;AACA,WAAK,IAAI5wB,IAAE,CAAX,EAAcA,KAAK2wB,WAAnB,EAAgC,EAAE3wB,CAAlC,EAAqC;AACnC,YAAI6wB,QAAQ7wB,IAAIgb,KAAK4L,EAAT,GAAc+J,WAA1B;AACA,YAAIG,WAAW9V,KAAK8L,GAAL,CAAS+J,KAAT,CAAf;AACA,YAAIE,WAAW/V,KAAK6L,GAAL,CAASgK,KAAT,CAAf;;AAEA,YAAIG,aAAahxB,KAAK4wB,cAAY,CAAjB,CAAjB;AACA,YAAIK,aAAa,CAACjxB,IAAE,CAAH,KAAS4wB,cAAY,CAArB,CAAjB;;AAEA,aAAK,IAAIM,IAAE,CAAX,EAAcA,KAAKN,WAAnB,EAAgC,EAAEM,CAAlC,EAAqC;AACnC,cAAIC,MAAOD,IAAI,CAAJ,GAAQlW,KAAK4L,EAAb,GAAkBgK,WAAnB,GAAkC,KAAKH,UAAjD;AACA,cAAIhvB,IAAIuZ,KAAK8L,GAAL,CAASqK,GAAT,IAAgBL,QAAxB;AACA,cAAIpvB,IAAIqvB,QAAR;AACA,cAAIpvB,IAAI,CAACqZ,KAAK6L,GAAL,CAASsK,GAAT,CAAD,GAAiBL,QAAzB;AACA,cAAIpW,IAAKwW,IAAIN,WAAb;AACA,cAAIjW,IAAK3a,IAAI2wB,WAAb;;AAEA;AACA;AACAzB,mBAAShyB,IAAT,CAAcuE,CAAd,EAAiBC,CAAjB,EAAoBC,CAApB,EAAuB+Y,CAAvB,EAA0BC,CAA1B;;AAEA,cAAI3a,IAAI2wB,WAAJ,IAAmBO,IAAIN,WAA3B,EAAwC;AACtC,gBAAI3V,OAAO+V,aAAWE,CAAtB;AACA,gBAAIhW,OAAO+V,aAAWC,CAAtB;;AAEAzP,oBAAQvkB,IAAR,CAAa+d,IAAb,EAAmBC,IAAnB,EAAyBD,OAAK,CAA9B,EACaC,IADb,EACmBA,OAAK,CADxB,EAC2BD,OAAK,CADhC;AAED;AACF;AACF;;AAED,UAAIG,eAAetc,SAASuc,kBAAT,CAA4BzhB,GAAG0a,YAA/B,EAA6C,IAAIhX,YAAJ,CAAiB4xB,QAAjB,CAA7C,CAAnB;AACA,UAAIhsB,cAAcpE,SAASuc,kBAAT,CAA4BzhB,GAAG4a,oBAA/B,EAAqD,IAAI8G,WAAJ,CAAgBmG,OAAhB,CAArD,CAAlB;;AAEA,UAAIlG,UAAU,CACZ,IAAIhZ,6BAAJ,CAAuB,UAAvB,EAAmC6Y,YAAnC,EAAiD,CAAjD,EAAoDxhB,GAAG4hB,KAAvD,EAA8D,EAA9D,EAAkE,CAAlE,CADY,EAEZ,IAAIjZ,6BAAJ,CAAuB,YAAvB,EAAqC6Y,YAArC,EAAmD,CAAnD,EAAsDxhB,GAAG4hB,KAAzD,EAAgE,EAAhE,EAAoE,EAApE,CAFY,CAAd;;AAKA,UAAI/b,YAAY,IAAIqD,oBAAJ,CAAcyY,OAAd,EAAuBkG,QAAQhlB,MAA/B,CAAhB;AACAgD,gBAAUgc,cAAV,CAAyBvY,WAAzB;;AAEA,UAAI2H,WAAW,IAAIwlB,cAAJ,EAAf;AACAxlB,eAASmU,KAAT,CAAe7T,OAAf,GAAyB,IAAI6K,mBAAJ,CAAe,KAAK4T,IAApB,CAAzB;;AAEA,cAAQ,KAAK2G,YAAb;AACE,aAAK,MAAL;AACE1lB,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACC,GADD,EACM,GADN,EACW,GADX,EACgB,GADhB,CAArC;AAEA;AACF,aAAK,iBAAL;AACEqP,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACC,GADD,EACM,GADN,EACW,GADX,EACgB,GADhB,CAArC;AAEA;AACF,aAAK,iBAAL;AACEqP,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACC,GADD,EACM,GADN,EACW,GADX,EACgB,GADhB,CAArC;AAEA;AAZJ;;AAeA,UAAI4B,kBAAkB0B,SAASsQ,qBAAT,CAA+B3P,SAA/B,EAA0CoL,QAA1C,CAAtB;AACA,WAAKnL,kBAAL,CAAwBtC,eAAxB;AACD;;;;EA9E6BQ,U;;;;;;;;;;;;;;;;;;;;;ACvDhC;;AACA;;AACA;;AACA;;;;;;+eA9BA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;;;;AAYA,IAAMwzB,WAAW,EAAjB;AACA,IAAMC,UAAU,EAAhB;;IAEMC,a;;;;;;;;;;;wBACe;AACjB,aAAO,cAAP;AACD;;;wBAEkB;AACjB;AASD;;;wBAEoB;AACnB;AAOD;;;;EAzByBz0B,kB;;AA4B5B,SAAS00B,UAAT,CAAoBvxB,CAApB,EAAuB;AACrB,SAAS,MAAIoxB,QAAL,GAAiBpxB,CAAlB,GAAuB,IAA9B;AACD;;AAED,SAASwxB,MAAT,CAAgBh2B,KAAhB,EAAuB;AACrB,SAAQwf,KAAK3X,GAAL,CAAS7H,KAAT,EAAgB61B,OAAhB,KAA4B,MAAMA,OAAlC,CAAD,GAA+C,IAAtD;AACD;;AAED,SAASI,QAAT,CAAkBj2B,KAAlB,EAAyB;AACvB,SAAO;AACL0b,OAAG8D,KAAK1X,GAAL,CAAS,GAAT,EAAc0X,KAAK3X,GAAL,CAAS,GAAT,EAAc,MAAO7H,QAAM,EAA3B,CAAd,CADE;AAEL2b,OAAG6D,KAAK1X,GAAL,CAAS,GAAT,EAAc0X,KAAK3X,GAAL,CAAS,GAAT,EAAe,CAAC7H,QAAM,EAAP,KAAY61B,UAAQ,EAApB,CAAf,CAAd,CAFE;AAGLja,OAAG4D,KAAK1X,GAAL,CAAS,GAAT,EAAc0X,KAAK3X,GAAL,CAAS,GAAT,EAAe,CAAC7H,QAAM,EAAP,KAAY61B,UAAQ,EAApB,CAAf,CAAd;AAHE,GAAP;AAKD;;AAED,IAAIK,MAAO7b,OAAO8b,WAAP,IAAsBA,YAAYD,GAAnC,GAA0CC,YAAYD,GAAZ,CAAgB7gB,IAAhB,CAAqB8gB,WAArB,CAA1C,GAA8EC,KAAKF,GAA7F;;IAEaG,W,WAAAA,W;;;AACX,yBAAc;AAAA;;AAAA;;AAGZ,WAAKC,sBAAL,GAA8B,KAA9B;;AAEA,WAAKC,UAAL,GAAkBL,KAAlB;AACA,WAAKM,cAAL,GAAsB,OAAKD,UAA3B;AACA,WAAKE,oBAAL,GAA4B,OAAKF,UAAjC;AACA,WAAKG,OAAL,GAAe,CAAf;AACA,WAAKC,WAAL,GAAmB,CAAnB;AACA,WAAKC,OAAL,GAAe,CAAf;AACA,WAAKC,QAAL,GAAgB,OAAKP,sBAAL,GAA8B,IAA9B,GAAqC,GAArD;AACA,WAAKQ,YAAL,GAAoB,CAApB;;AAEA,WAAKC,gBAAL,GAAwB,IAAxB;AACA,WAAKC,mBAAL,GAA2B,IAA3B;AACA,WAAKC,QAAL,GAAgB,IAAhB;;AAEA,WAAKC,iBAAL,GAAyB,IAAI5D,kCAAJ,EAAzB;AACA;AACA;AACA;AACA,WAAK4D,iBAAL,CAAuBzQ,MAAvB,GAAgC,IAAI3kB,YAAJ,CAAiB,CAC/C,KAD+C,EACxC,CADwC,EACrC,CADqC,EAClC,CADkC,EAE/C,CAF+C,EAE5C,KAF4C,EAErC,CAFqC,EAElC,CAFkC,EAG/C,CAH+C,EAG5C,CAH4C,EAGzC,CAHyC,EAGtC,CAHsC,EAI/C,CAAC,MAJ8C,EAItC,MAJsC,EAI9B,IAJ8B,EAIxB,CAJwB,CAAjB,CAAhC;AAtBY;AA4Bb;;;;sCAEiBwB,Q,EAAU;AAC1B,WAAKmwB,UAAL;;AAEA,UAAIzrB,KAAK1E,SAAS0E,EAAlB;;AAEA,UAAImvB,WAAW,EAAf;AACA,UAAIC,aAAa,EAAjB;;AAEA;AACA,WAAK,IAAI5yB,IAAI,CAAb,EAAgBA,IAAIoxB,QAApB,EAA8B,EAAEpxB,CAAhC,EAAmC;AACjC;AACA2yB,iBAASz1B,IAAT,CAAcq0B,WAAWvxB,CAAX,CAAd,EAA6BwxB,OAAO,CAAP,CAA7B,EAAwC,IAAxC,EAA8C,GAA9C,EAAmD,GAAnD,EAAwD,GAAxD;AACAmB,iBAASz1B,IAAT,CAAcq0B,WAAWvxB,IAAE,CAAb,CAAd,EAA+BwxB,OAAO,CAAP,CAA/B,EAA0C,IAA1C,EAAgD,GAAhD,EAAqD,GAArD,EAA0D,GAA1D;;AAEA;AACAmB,iBAASz1B,IAAT,CAAcq0B,WAAWvxB,CAAX,CAAd,EAA6BwxB,OAAO,CAAP,CAA7B,EAAwC,IAAxC,EAA8C,GAA9C,EAAmD,GAAnD,EAAwD,GAAxD;AACAmB,iBAASz1B,IAAT,CAAcq0B,WAAWvxB,IAAE,CAAb,CAAd,EAA+BwxB,OAAO,CAAP,CAA/B,EAA0C,IAA1C,EAAgD,GAAhD,EAAqD,GAArD,EAA0D,GAA1D;;AAEA,YAAIpY,MAAMpZ,IAAI,CAAd;AACA4yB,mBAAW11B,IAAX,CAAgBkc,GAAhB,EAAqBA,MAAI,CAAzB,EAA4BA,MAAI,CAAhC,EACiBA,MAAI,CADrB,EACwBA,GADxB,EAC6BA,MAAI,CADjC;AAED;;AAED,eAASyZ,WAAT,CAAqBtD,IAArB,EAA2BG,MAA3B,EAAmCD,KAAnC,EAA0CD,GAA1C,EAA+C7tB,CAA/C,EAAkDuV,CAAlD,EAAqDC,CAArD,EAAwDC,CAAxD,EAA2D;AACzD,YAAIgC,MAAMuZ,SAASl2B,MAAT,GAAkB,CAA5B;;AAEAk2B,iBAASz1B,IAAT,CAAcqyB,IAAd,EAAoBG,MAApB,EAA4B/tB,CAA5B,EAA+BuV,CAA/B,EAAkCC,CAAlC,EAAqCC,CAArC;AACAub,iBAASz1B,IAAT,CAAcuyB,KAAd,EAAqBD,GAArB,EAA0B7tB,CAA1B,EAA6BuV,CAA7B,EAAgCC,CAAhC,EAAmCC,CAAnC;AACAub,iBAASz1B,IAAT,CAAcqyB,IAAd,EAAoBC,GAApB,EAAyB7tB,CAAzB,EAA4BuV,CAA5B,EAA+BC,CAA/B,EAAkCC,CAAlC;AACAub,iBAASz1B,IAAT,CAAcuyB,KAAd,EAAqBC,MAArB,EAA6B/tB,CAA7B,EAAgCuV,CAAhC,EAAmCC,CAAnC,EAAsCC,CAAtC;;AAEAwb,mBAAW11B,IAAX,CAAgBkc,GAAhB,EAAqBA,MAAI,CAAzB,EAA4BA,MAAI,CAAhC,EACiBA,GADjB,EACsBA,MAAI,CAD1B,EAC6BA,MAAI,CADjC;AAED;;AAED;AACAyZ,kBAAY,CAAC,GAAb,EAAkB,CAAC,GAAnB,EAAwB,GAAxB,EAA6B,GAA7B,EAAkC,GAAlC,EAAuC,GAAvC,EAA4C,GAA5C,EAAiD,KAAjD;;AAEA;AACAA,kBAAY,CAAC,IAAb,EAAmB,CAAC,IAApB,EAA0B,IAA1B,EAAgC,IAAhC,EAAsC,IAAtC,EAA4C,GAA5C,EAAiD,GAAjD,EAAsD,GAAtD;;AAEA;AACAA,kBAAY,CAAC,IAAb,EAAmBrB,OAAO,EAAP,CAAnB,EAA+B,IAA/B,EAAqCA,OAAO,EAAP,CAArC,EAAiD,KAAjD,EAAwD,GAAxD,EAA6D,GAA7D,EAAkE,GAAlE;;AAEA;AACAqB,kBAAY,CAAC,IAAb,EAAmBrB,OAAO,EAAP,CAAnB,EAA+B,IAA/B,EAAqCA,OAAO,EAAP,CAArC,EAAiD,KAAjD,EAAwD,GAAxD,EAA6D,GAA7D,EAAkE,IAAlE;;AAEA,WAAKe,gBAAL,GAAwBzzB,SAASuc,kBAAT,CAA4B7X,GAAG8Q,YAA/B,EAA6C,IAAIhX,YAAJ,CAAiBq1B,QAAjB,CAA7C,EAAyEnvB,GAAGsvB,YAA5E,CAAxB;AACA,UAAIC,iBAAiBj0B,SAASuc,kBAAT,CAA4B7X,GAAGgR,oBAA/B,EAAqD,IAAI8G,WAAJ,CAAgBsX,UAAhB,CAArD,CAArB;;AAEA,UAAII,aAAa,CACf,IAAIzwB,6BAAJ,CAAuB,UAAvB,EAAmC,KAAKgwB,gBAAxC,EAA0D,CAA1D,EAA6D/uB,GAAGgY,KAAhE,EAAuE,EAAvE,EAA2E,CAA3E,CADe,EAEf,IAAIjZ,6BAAJ,CAAuB,SAAvB,EAAkC,KAAKgwB,gBAAvC,EAAyD,CAAzD,EAA4D/uB,GAAGgY,KAA/D,EAAsE,EAAtE,EAA0E,EAA1E,CAFe,CAAjB;;AAKA,UAAIyX,eAAe,IAAInwB,oBAAJ,CAAckwB,UAAd,EAA0BJ,WAAWn2B,MAArC,CAAnB;AACAw2B,mBAAaxX,cAAb,CAA4BsX,cAA5B;AACAE,mBAAavX,SAAb,CAAuB,CAAC,CAAC,GAAF,EAAO,CAAC,GAAR,EAAa,GAAb,CAAvB,EAA0C,CAAC,GAAD,EAAM,GAAN,EAAW,KAAX,CAA1C;;AAEA,WAAK8W,mBAAL,GAA2B1zB,SAASsQ,qBAAT,CAA+B6jB,YAA/B,EAA6C,IAAI3B,aAAJ,EAA7C,CAA3B;AACA,WAAKmB,QAAL,GAAgB,IAAI70B,UAAJ,EAAhB;AACA,WAAK60B,QAAL,CAAc/yB,kBAAd,CAAiC,KAAK8yB,mBAAtC;;AAEA,WAAK7yB,OAAL,CAAa,KAAK8yB,QAAlB;AACA,WAAK9yB,OAAL,CAAa,KAAK+yB,iBAAlB;AACD;;;4BAWO;AACN,WAAKX,UAAL,GAAkBL,KAAlB;AACD;;;0BAEK;AACJ,UAAIwB,OAAOxB,KAAX;;AAEA,UAAIyB,WAAW,QAAQD,OAAO,KAAKlB,cAApB,CAAf;AACA,WAAKA,cAAL,GAAsBkB,IAAtB;AACA,WAAKd,OAAL,GAAe,KAAKF,OAAL,GAAelX,KAAK3X,GAAL,CAAS,KAAK+uB,OAAd,EAAuBe,QAAvB,CAAf,GAAkDA,QAAjE;AACA,WAAKjB,OAAL;;AAEA,UAAIgB,OAAO,KAAKjB,oBAAL,GAA4B,KAAKI,QAA5C,EAAsD;AACpD,YAAIe,eAAeF,OAAO,KAAKjB,oBAA/B;AACA,aAAKE,WAAL,GAAmBnX,KAAKqY,KAAL,CAAW,QAAQD,eAAe,KAAKlB,OAA5B,CAAX,CAAnB;;AAEA;AACA;AACA,aAAKoB,YAAL,CAAkB,KAAKlB,OAAvB,EAAgC,KAAKD,WAArC;AACA,YAAI,KAAKL,sBAAT,EAAiC;AAC/BzsB,kBAAQkuB,GAAR,mBAA4B,KAAKpB,WAAjC,kBAAyD,KAAKC,OAA9D;AACD;;AAED,aAAKH,oBAAL,GAA4BiB,IAA5B;AACA,aAAKhB,OAAL,GAAe,CAAf;AACA,aAAKE,OAAL,GAAe,CAAf;AACD;AACF;;;iCAEYoB,Q,EAAUC,S,EAAW;AAChC,UAAIC,QAAQjC,SAAS+B,QAAT,CAAZ;AACA;AACA;AACA;AACA;AACA;AACA,UAAIG,KAAKnC,OAAOgC,WAAW,CAAlB,CAAT;AACA,UAAII,KAAKpC,OAAOiC,YAAY,CAAnB,CAAT;;AAEA;AACA,UAAII,cAAc,CAChBtC,WAAW,KAAKe,YAAhB,CADgB,EACesB,EADf,EACmB,IADnB,EACyBF,MAAMxc,CAD/B,EACkCwc,MAAMvc,CADxC,EAC2Cuc,MAAMtc,CADjD,EAEhBma,WAAW,KAAKe,YAAL,GAAkB,CAA7B,CAFgB,EAEiBsB,EAFjB,EAEqB,IAFrB,EAE2BF,MAAMxc,CAFjC,EAEoCwc,MAAMvc,CAF1C,EAE6Cuc,MAAMtc,CAFnD,EAGhBma,WAAW,KAAKe,YAAhB,CAHgB,EAGeqB,EAHf,EAGmB,IAHnB,EAGyBD,MAAMxc,CAH/B,EAGkCwc,MAAMvc,CAHxC,EAG2Cuc,MAAMtc,CAHjD,EAIhBma,WAAW,KAAKe,YAAL,GAAkB,CAA7B,CAJgB,EAIiBqB,EAJjB,EAIqB,IAJrB,EAI2BD,MAAMxc,CAJjC,EAIoCwc,MAAMvc,CAJ1C,EAI6Cuc,MAAMtc,CAJnD,CAAlB;;AAOA;AACAsc,YAAMxc,CAAN,GAAU,GAAV;AACAwc,YAAMvc,CAAN,GAAU,GAAV;AACAuc,YAAMtc,CAAN,GAAU,GAAV;;AAEA,UAAI,KAAKkb,YAAL,IAAqBlB,WAAW,CAApC,EAAuC;AACrC;AACA;AACA,aAAKxyB,SAAL,CAAemQ,kBAAf,CAAkC,KAAKwjB,gBAAvC,EAAyD,IAAIj1B,YAAJ,CAAiBu2B,WAAjB,CAAzD,EACkC,KAAKvB,YAAL,GAAoB,EAApB,GAAyB,CAD3D;AAEAuB,sBAAc,CACZtC,WAAW,CAAX,CADY,EACGC,OAAOH,OAAP,CADH,EACoB,IADpB,EAC0BqC,MAAMxc,CADhC,EACmCwc,MAAMvc,CADzC,EAC4Cuc,MAAMtc,CADlD,EAEZma,WAAW,GAAX,CAFY,EAEKC,OAAOH,OAAP,CAFL,EAEsB,IAFtB,EAE4BqC,MAAMxc,CAFlC,EAEqCwc,MAAMvc,CAF3C,EAE8Cuc,MAAMtc,CAFpD,EAGZma,WAAW,CAAX,CAHY,EAGGC,OAAO,CAAP,CAHH,EAGc,IAHd,EAGoBkC,MAAMxc,CAH1B,EAG6Bwc,MAAMvc,CAHnC,EAGsCuc,MAAMtc,CAH5C,EAIZma,WAAW,GAAX,CAJY,EAIKC,OAAO,CAAP,CAJL,EAIgB,IAJhB,EAIsBkC,MAAMxc,CAJ5B,EAI+Bwc,MAAMvc,CAJrC,EAIwCuc,MAAMtc,CAJ9C,CAAd;AAMA,aAAKxY,SAAL,CAAemQ,kBAAf,CAAkC,KAAKwjB,gBAAvC,EAAyD,IAAIj1B,YAAJ,CAAiBu2B,WAAjB,CAAzD,EAAwF,CAAxF;AACD,OAZD,MAYO;AACLA,oBAAY32B,IAAZ,CACEq0B,WAAW,KAAKe,YAAL,GAAkB,CAA7B,CADF,EACmCd,OAAOH,OAAP,CADnC,EACoD,IADpD,EAC0DqC,MAAMxc,CADhE,EACmEwc,MAAMvc,CADzE,EAC4Euc,MAAMtc,CADlF,EAEEma,WAAW,KAAKe,YAAL,GAAkB,IAA7B,CAFF,EAEsCd,OAAOH,OAAP,CAFtC,EAEuD,IAFvD,EAE6DqC,MAAMxc,CAFnE,EAEsEwc,MAAMvc,CAF5E,EAE+Euc,MAAMtc,CAFrF,EAGEma,WAAW,KAAKe,YAAL,GAAkB,CAA7B,CAHF,EAGmCd,OAAO,CAAP,CAHnC,EAG8C,IAH9C,EAGoDkC,MAAMxc,CAH1D,EAG6Dwc,MAAMvc,CAHnE,EAGsEuc,MAAMtc,CAH5E,EAIEma,WAAW,KAAKe,YAAL,GAAkB,IAA7B,CAJF,EAIsCd,OAAO,CAAP,CAJtC,EAIiD,IAJjD,EAIuDkC,MAAMxc,CAJ7D,EAIgEwc,MAAMvc,CAJtE,EAIyEuc,MAAMtc,CAJ/E;AAMA,aAAKxY,SAAL,CAAemQ,kBAAf,CAAkC,KAAKwjB,gBAAvC,EAAyD,IAAIj1B,YAAJ,CAAiBu2B,WAAjB,CAAzD,EACkC,KAAKvB,YAAL,GAAoB,EAApB,GAAyB,CAD3D;AAED;;AAED,WAAKA,YAAL,GAAoB,CAAC,KAAKA,YAAL,GAAkB,CAAnB,IAAwBlB,QAA5C;;AAEA,WAAKsB,iBAAL,CAAuBvC,IAAvB,GAAiC,KAAKgC,WAAtC;AACD;;;wBAvF2B;AAC1B,aAAO,KAAKL,sBAAZ;AACD,K;sBAEyBt2B,K,EAAO;AAC/B,WAAKs2B,sBAAL,GAA8Bt2B,KAA9B;AACA,WAAK62B,QAAL,GAAgB72B,QAAQ,IAAR,GAAe,GAA/B;AACD;;;;EAzG8BoC,U;;;;;;;;;;;;;;;;;;;;;ACzDjC;;AACA;;AACA;;AACA;;;;;;+eA3BA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;AASA,IAAMhE,KAAKC,qBAAX,C,CAAkC;;IAE5Bi6B,a;;;AACJ,2BAAc;AAAA;;AAAA;;AAGZ,UAAK9U,KAAL,GAAa,MAAKoE,aAAL,CAAmB,SAAnB,CAAb;;AAEA,UAAKkN,mBAAL,GAA2B,MAAKjN,aAAL,CAAmB,qBAAnB,EACuB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACC,GADD,EACM,GADN,EACW,GADX,EACgB,GADhB,CADvB,EAE6C,CAF7C,CAA3B;AALY;AAQb;;;;wBAEkB;AACjB,aAAO,cAAP;AACD;;;wBAEkB;AACjB;AAaD;;;wBAEoB;AACnB;AAOD;;;;EAvCyBxmB,kB;;IA0Cfsb,S,WAAAA,S;;;AACX,qBAAY4B,OAAZ,EAAqB;AAAA;;AAAA;;AAGnB,WAAK3H,MAAL,GAAc2H,QAAQxD,KAAtB;AACA,WAAKga,YAAL,GAAoBxW,QAAQyW,WAAR,IAAuB,MAA3C;;AAEA,WAAKuD,cAAL,GAAsB,IAAI5hB,qBAAJ,CAAiB,OAAKC,MAAtB,CAAtB;AANmB;AAOpB;;;;sCAkBiBtT,Q,EAAU;AAC1B,UAAIowB,WAAW,CACb,CAAC,GADY,EACP,GADO,EACF,GADE,EACG,GADH,EACQ,GADR,EAEZ,GAFY,EAEP,GAFO,EAEF,GAFE,EAEG,GAFH,EAEQ,GAFR,EAGZ,GAHY,EAGP,CAAC,GAHM,EAGD,GAHC,EAGI,GAHJ,EAGS,GAHT,EAIb,CAAC,GAJY,EAIP,CAAC,GAJM,EAID,GAJC,EAII,GAJJ,EAIS,GAJT,CAAf;AAMA,UAAIzN,UAAU,CACZ,CADY,EACT,CADS,EACN,CADM,EAEZ,CAFY,EAET,CAFS,EAEN,CAFM,CAAd;;AAKA,UAAIrG,eAAetc,SAASuc,kBAAT,CAA4BzhB,GAAG0a,YAA/B,EAA6C,IAAIhX,YAAJ,CAAiB4xB,QAAjB,CAA7C,CAAnB;AACA,UAAIhsB,cAAcpE,SAASuc,kBAAT,CAA4BzhB,GAAG4a,oBAA/B,EAAqD,IAAI8G,WAAJ,CAAgBmG,OAAhB,CAArD,CAAlB;;AAEA,UAAIlG,UAAU,CACZ,IAAIhZ,6BAAJ,CAAuB,UAAvB,EAAmC6Y,YAAnC,EAAiD,CAAjD,EAAoDxhB,GAAG4hB,KAAvD,EAA8D,EAA9D,EAAkE,CAAlE,CADY,EAEZ,IAAIjZ,6BAAJ,CAAuB,YAAvB,EAAqC6Y,YAArC,EAAmD,CAAnD,EAAsDxhB,GAAG4hB,KAAzD,EAAgE,EAAhE,EAAoE,EAApE,CAFY,CAAd;;AAKA,UAAI/b,YAAY,IAAIqD,oBAAJ,CAAcyY,OAAd,EAAuBkG,QAAQhlB,MAA/B,CAAhB;AACAgD,gBAAUgc,cAAV,CAAyBvY,WAAzB;AACAzD,gBAAUic,SAAV,CAAoB,CAAC,CAAC,GAAF,EAAO,CAAC,GAAR,EAAa,GAAb,CAApB,EAAuC,CAAC,GAAD,EAAM,GAAN,EAAW,KAAX,CAAvC;;AAEA,UAAI7Q,WAAW,IAAIipB,aAAJ,EAAf;AACAjpB,eAASmU,KAAT,CAAe7T,OAAf,GAAyB,KAAK4oB,cAA9B;;AAEA,cAAQ,KAAKxD,YAAb;AACE,aAAK,MAAL;AACE1lB,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACI,GADJ,EACS,GADT,EACc,GADd,EACmB,GADnB,CAArC;AAEA;AACF,aAAK,iBAAL;AACEqP,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACI,GADJ,EACS,GADT,EACc,GADd,EACmB,GADnB,CAArC;AAEA;AACF,aAAK,iBAAL;AACEqP,mBAASylB,mBAAT,CAA6B90B,KAA7B,GAAqC,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,EAAgB,GAAhB,EACI,GADJ,EACS,GADT,EACc,GADd,EACmB,GADnB,CAArC;AAEA;AAZJ;;AAeA,UAAI4B,kBAAkB0B,SAASsQ,qBAAT,CAA+B3P,SAA/B,EAA0CoL,QAA1C,CAAtB;AACA,WAAKnL,kBAAL,CAAwBtC,eAAxB;AACD;;;wBA5DiB;AAChB,UAAIoS,QAAQ,KAAK4C,MAAL,CAAYqE,UAAxB;AACA,UAAIhH,SAAS,KAAK2C,MAAL,CAAYsE,WAAzB;;AAEA,cAAQ,KAAK6Z,YAAb;AACE,aAAK,iBAAL;AAAwB9gB,oBAAU,GAAV,CAAe;AACvC,aAAK,iBAAL;AAAwBD,mBAAS,GAAT,CAAc;AAFxC;;AAKA,UAAI,CAACC,MAAD,IAAW,CAACD,KAAhB,EAAuB;AACrB,eAAO,CAAP;AACD;;AAED,aAAOA,QAAQC,MAAf;AACD;;;;EAxB4B7R,U;;;;;;;;;;;;;;;;;;;;;ACrD/B;;AACA;;AACA;;AACA;;AACA;;;;;;+eAxBA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;IAQawa,S,WAAAA,S;;;AACX,qBAAYpH,IAAZ,EAAkBgjB,IAAlB,EAAwBC,KAAxB,EAA+B;AAAA;;AAAA,iHAE3BjjB,OAAOA,KAAK3I,gBAAZ,GAA+B,IAFJ,EAG1B2rB,QAAQhjB,IAAT,GAAiBA,KAAK1I,UAAtB,GAAmC,IAHR,EAI1B2rB,SAASjjB,IAAV,GAAkBijB,MAAMC,WAAN,CAAkBljB,IAAlB,CAAlB,GAA4C,IAJjB,EAK3BA,OAAOA,KAAKxI,GAAZ,GAAkB,MALS;AAO9B;;;EAR4BJ,oB;;IAWlBiQ,K,WAAAA,K;;;AACX,mBAAc;AAAA;;AAAA;;AAGZ,WAAK8b,UAAL,GAAkB,CAAC,CAAnB;AACA,WAAKC,WAAL,GAAmB,CAAnB;AACA,WAAKC,cAAL,GAAsB,KAAtB;AACA,WAAKC,MAAL,GAAc,IAAd;AACA,WAAKC,aAAL,GAAqB,KAArB;AACA,WAAKC,WAAL,CAAiB,IAAjB,EARY,CAQY;;AAExB,WAAKC,cAAL,GAAsB,IAAtB;AACA,WAAKC,mBAAL,GAA2B,IAA3B;;AAEA,WAAKC,cAAL,GAAsB,CAAtB;;AAEA,WAAKC,WAAL,GAAmB,CAAnB;AACA,WAAKC,aAAL,GAAqB,EAArB;;AAEA,WAAK/Y,KAAL,GAAa,IAAb;AAlBY;AAmBb;;;;gCAEWhd,Q,EAAU;AACpB,WAAKI,YAAL,CAAkBJ,QAAlB;AACD;;;mCAEc;AACb,UAAI,KAAKF,SAAT,EAAoB;AAClB,aAAK01B,MAAL,GAAc,IAAd;AACA,aAAK11B,SAAL,GAAiB,IAAjB;AACA,aAAK61B,cAAL,GAAsB,IAAtB;AACD;AACF;;;;;AAUD;AACA;uCACmBK,K,EAAOC,Q,EAAU;AAClC;AACA;AACA,UAAI,CAACD,MAAME,OAAN,CAAcC,eAAnB,EAAoC;AAClC;AACD;;AAED,UAAIC,eAAeJ,MAAME,OAAN,CAAcC,eAAd,EAAnB;;AAEA,UAAIE,kBAAkB,EAAtB;AACA,UAAIC,iBAAiB,KAAKR,WAA1B;AACA,WAAKA,WAAL;;AAXkC;AAAA;AAAA;;AAAA;AAalC,6BAAwBM,YAAxB,8HAAsC;AAAA,cAA7BG,WAA6B;;AACpC,cAAIC,YAAYR,MAAMS,YAAN,CAAmBF,WAAnB,EAAgCN,QAAhC,CAAhB;;AAEA,cAAI,CAACO,SAAL,EAAgB;AACd;AACD;;AAED;AACA,cAAIA,UAAUE,aAAV,CAAwBvT,MAA5B,EAAoC;AAClC,iBAAKwT,aAAL,CAAmBC,aAAnB,CAAiCJ,UAAUE,aAAV,CAAwBvT,MAAzD;AACD;;AAED,cAAIqT,UAAUtI,SAAd,EAAyB;AACvB,gBAAIqI,YAAYM,aAAZ,IAA6B,iBAAjC,EAAoD;AAClD;AACA;AACA;AACA;AACA,mBAAKF,aAAL,CAAmBG,eAAnB,CAAmCN,UAAUtI,SAA7C;AACD;;AAED;AACA;;AAEA;AACA,gBAAI6I,YAAY,KAAK7zB,OAAL,CAAaszB,UAAUtI,SAAvB,CAAhB;;AAEA,gBAAI6I,SAAJ,EAAe;AACb;AACA,mBAAKJ,aAAL,CAAmBK,SAAnB,CAA6BD,UAAU30B,YAAvC;;AAEA,kBAAI20B,UAAUj0B,IAAV,CAAelD,aAAf,IAAgC02B,cAApC,EAAoD;AAClDS,0BAAUj0B,IAAV,CAAem0B,YAAf;AACD;AACDF,wBAAUj0B,IAAV,CAAelD,aAAf,GAA+B,KAAKk2B,WAApC;AACAO,8BAAgBj4B,IAAhB,CAAqB24B,UAAUj0B,IAA/B;AACD,aATD,MASO;AACL;AACA;AACA,kBAAIo0B,iBAAiB,GAArB;AACA,kBAAI9I,YAAY9tB,eAAKoC,UAAL,CACZ8zB,UAAUtI,SAAV,CAAoBzrB,MAApB,CAA2BE,CADf,EAEZ6zB,UAAUtI,SAAV,CAAoBzrB,MAApB,CAA2BG,CAFf,EAGZ4zB,UAAUtI,SAAV,CAAoBzrB,MAApB,CAA2BI,CAHf,CAAhB;AAKAvC,6BAAKulB,GAAL,CAASuI,SAAT,EAAoBA,SAApB,EAA+B,CAC3BoI,UAAUtI,SAAV,CAAoBiJ,SAApB,CAA8Bx0B,CAA9B,GAAkCu0B,cADP,EAE3BV,UAAUtI,SAAV,CAAoBiJ,SAApB,CAA8Bv0B,CAA9B,GAAkCs0B,cAFP,EAG3BV,UAAUtI,SAAV,CAAoBiJ,SAApB,CAA8Bt0B,CAA9B,GAAkCq0B,cAHP,CAA/B;AAKA;AACA;AACA,mBAAKP,aAAL,CAAmBK,SAAnB,CAA6B5I,SAA7B;AACD;AACF;AACF;AApEiC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAAA;AAAA;AAAA;;AAAA;AAsElC,8BAAsB,KAAK2H,aAA3B,mIAA0C;AAAA,cAAjCqB,SAAiC;;AACxC,cAAIA,UAAUx3B,aAAV,IAA2B,KAAKk2B,WAApC,EAAiD;AAC/CsB,sBAAUC,UAAV;AACD;AACF;AA1EiC;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AA4ElC,WAAKtB,aAAL,GAAqBM,eAArB;AACD;;;iCAEYE,W,EAAaP,K,EAAOC,Q,EAAU;AACzC,UAAIO,YAAYR,MAAMS,YAAN,CAAmBF,WAAnB,EAAgCN,QAAhC,CAAhB;;AAEA,UAAI,CAACO,SAAL,EAAgB;AACd;AACD;;AAED,WAAKc,mBAAL,CAAyBd,UAAUtI,SAAnC;AACD;;;wCAEmBA,S,EAAW;AAC7B,UAAIA,SAAJ,EAAe;AACb;AACA,YAAI6I,YAAY,KAAK7zB,OAAL,CAAagrB,SAAb,CAAhB;;AAEA,YAAI6I,SAAJ,EAAe;AACb;AACAA,oBAAUj0B,IAAV,CAAey0B,YAAf;AACD;AACF;AACF;;;gCAEW1qB,M,EAAQ;AAClB,UAAIA,UAAU,KAAK4oB,aAAnB,EAAkC;AAChC;AACD;;AAED,WAAKA,aAAL,GAAqB5oB,MAArB;;AAEA,UAAIA,MAAJ,EAAY;AACV,aAAK2oB,MAAL,GAAc,IAAIzC,wBAAJ,EAAd;AACA,aAAKyC,MAAL,CAAYr2B,UAAZ,GAAyB,IAAzB;AACA,aAAK0B,OAAL,CAAa,KAAK20B,MAAlB;;AAEA,YAAI,KAAKD,cAAT,EAAyB;AACvB,eAAKC,MAAL,CAAYpS,WAAZ,GAA0B,CAAC,CAAD,EAAI,GAAJ,EAAS,CAAC,IAAV,CAA1B;AACD,SAFD,MAEO;AACL,eAAKoS,MAAL,CAAYpS,WAAZ,GAA0B,CAAC,CAAD,EAAI,CAAC,GAAL,EAAU,CAAC,GAAX,CAA1B;AACD;AACD,aAAKoS,MAAL,CAAYlS,KAAZ,GAAoB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,CAApB;AACA9iB,uBAAKg3B,SAAL,CAAe,KAAKhC,MAAL,CAAYnS,QAA3B,EAAqC,CAAC,IAAtC,EAA4C,GAA5C,EAAiD,GAAjD;AACD,OAZD,MAYO,IAAI,CAACxW,MAAL,EAAa;AAClB,YAAI,KAAK2oB,MAAT,EAAiB;AACf,eAAKv0B,UAAL,CAAgB,KAAKu0B,MAArB;AACA,eAAKA,MAAL,GAAc,IAAd;AACD;AACF;AACF;;;kCAEa3oB,M,EAAQ;AACpB,WAAK0oB,cAAL,GAAsB1oB,MAAtB;AACA,UAAI,KAAK2oB,MAAT,EAAiB;AACf,YAAI,KAAKD,cAAT,EAAyB;AACvB,eAAKC,MAAL,CAAYpS,WAAZ,GAA0B,CAAC,CAAD,EAAI,GAAJ,EAAS,CAAC,IAAV,CAA1B;AACD,SAFD,MAEO;AACL,eAAKoS,MAAL,CAAYpS,WAAZ,GAA0B,CAAC,CAAD,EAAI,CAAC,GAAL,EAAU,CAAC,GAAX,CAA1B;AACD;AACD,aAAKoS,MAAL,CAAYlS,KAAZ,GAAoB,CAAC,GAAD,EAAM,GAAN,EAAW,GAAX,CAApB;AACA9iB,uBAAKg3B,SAAL,CAAe,KAAKhC,MAAL,CAAYnS,QAA3B,EAAqC,CAAC,IAAtC,EAA4C,GAA5C,EAAiD,GAAjD;AACD;AACF;;;yBAEI9Z,gB,EAAkBC,U,EAAYE,G,EAAK;AACtC,UAAIwI,OAAO,IAAI5I,oBAAJ,EAAX;AACA4I,WAAK3I,gBAAL,GAAwBA,gBAAxB;AACA2I,WAAK1I,UAAL,GAAkBA,UAAlB;AACA,UAAIE,GAAJ,EAAS;AACPwI,aAAKxI,GAAL,GAAWA,GAAX;AACD;;AAED,WAAK+tB,aAAL,CAAmB,CAACvlB,IAAD,CAAnB;AACD;;AAED;;;;gCACYwlB,O,EAASxC,I,EAAM;AACzB,UAAI,CAAC,KAAKp1B,SAAN,IAAmB,CAACo1B,IAAxB,EAA8B;AAC5B;AACD;;AAED,UAAIxwB,KAAK,KAAK5E,SAAL,CAAe4E,EAAxB;AACA,UAAIwxB,UAAUwB,QAAQxB,OAAtB;AACA;AACA,UAAIf,QAAQe,QAAQyB,WAAR,CAAoBC,SAAhC;;AAEA,UAAI,CAAClzB,EAAL,EAAS;AACP;AACD;;AAEDA,SAAGmzB,eAAH,CAAmBnzB,GAAGozB,WAAtB,EAAmC3C,MAAM4C,WAAzC;;AAEA,UAAI,KAAK/a,KAAT,EAAgB;AACdtY,WAAGsY,KAAH,CAAStY,GAAGszB,gBAAH,GAAsBtzB,GAAGuzB,gBAAlC;AACD;;AAED,UAAI1nB,QAAQ,EAAZ;AApByB;AAAA;AAAA;;AAAA;AAqBzB,8BAAiB2kB,KAAK3kB,KAAtB,mIAA6B;AAAA,cAApB2B,IAAoB;;AAC3B3B,gBAAMnS,IAAN,CAAW,IAAIkb,SAAJ,CAAcpH,IAAd,EAAoBgjB,IAApB,EAA0BC,KAA1B,CAAX;AACD;AAvBwB;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;AAAA;;AAyBzB,WAAKsC,aAAL,CAAmBlnB,KAAnB;AACD;;;kCAEaA,K,EAAO;AACnB;AACA,UAAI,CAAC,KAAKzQ,SAAV,EAAqB;AACnB;AACD;;AAED,WAAKA,SAAL,CAAeo4B,SAAf,CAAyB3nB,KAAzB,EAAgC,IAAhC;AACD;;;iCAEY;AACX,UAAI4nB,gBAAgB,KAAK9C,UAAzB;AACA,WAAKA,UAAL,GAAkBxC,YAAYD,GAAZ,EAAlB;AACA,UAAI,KAAK4C,MAAT,EAAiB;AACf,aAAKA,MAAL,CAAY4C,KAAZ;AACD;;AAED,UAAID,iBAAiB,CAArB,EAAwB;AACtB,aAAK7C,WAAL,GAAmB,KAAKD,UAAL,GAAkB8C,aAArC;AACD,OAFD,MAEO;AACL,aAAK7C,WAAL,GAAmB,CAAnB;AACD;;AAED,WAAKhyB,OAAL,CAAa,KAAK+xB,UAAlB,EAA8B,KAAKC,WAAnC;;AAEA,aAAO,KAAKA,WAAZ;AACD;;;+BAEU;AACT,UAAI,KAAKK,cAAL,IAAuB,KAAKC,mBAAhC,EAAqD;AACnD,aAAKD,cAAL,CAAoB0C,KAApB;AACD;;AAED,UAAI,KAAK7C,MAAT,EAAiB;AACf,aAAKA,MAAL,CAAY8C,GAAZ;AACD;AACF;;AAED;;;;gCACYt4B,Q,EAAU;AACpB,aAAOwB,QAAQ4I,OAAR,EAAP;AACD;;;wBAvOmB;AAClB,UAAI,CAAC,KAAKurB,cAAV,EAA0B;AACxB,aAAKA,cAAL,GAAsB,IAAIvI,4BAAJ,EAAtB;AACA,aAAKvsB,OAAL,CAAa,KAAK80B,cAAlB;AACD;AACD,aAAO,KAAKA,cAAZ;AACD;;;;EAxCwB72B,U;;;;;;;;;;;;;;;;;;;qjBCrC3B;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;AAEA,IAAMy5B,aAAa,MAAnB;;IAEa/e,c,WAAAA,c;AACX,0BAAYqJ,KAAZ,EAAmBne,EAAnB,EAAuB;AAAA;;AAAA;;AACrB,SAAKme,KAAL,GAAaA,KAAb;AACA,SAAKne,EAAL,GAAUA,EAAV;AACA,SAAK8zB,aAAL,GAAqB,KAArB;;AAEA,SAAKC,OAAL,GAAe,CAAf;AACA,SAAKC,SAAL,GAAiB,CAAjB;;AAEA,SAAKlvB,UAAL,GAAkB5K,eAAKC,MAAL,EAAlB;;AAEA,QAAI0K,mBAAmB3K,eAAKC,MAAL,EAAvB;AACA,SAAK0K,gBAAL,GAAwBA,gBAAxB;;AAEA;AACA3K,mBAAK+5B,QAAL,CAAc,KAAKnvB,UAAnB;;AAEA;AACA;AACA;AACA,aAASovB,QAAT,GAAoB;AAClBl0B,SAAGm0B,MAAH,CAAUnoB,KAAV,GAAkBhM,GAAGm0B,MAAH,CAAUC,WAAV,GAAwB/hB,OAAOgiB,gBAAjD;AACAr0B,SAAGm0B,MAAH,CAAUloB,MAAV,GAAmBjM,GAAGm0B,MAAH,CAAUG,YAAV,GAAyBjiB,OAAOgiB,gBAAnD;AACAn6B,qBAAKq6B,WAAL,CAAiB1vB,gBAAjB,EAAmC2S,KAAK4L,EAAL,GAAQ,GAA3C,EACiBpjB,GAAGm0B,MAAH,CAAUnoB,KAAV,GAAgBhM,GAAGm0B,MAAH,CAAUloB,MAD3C,EAEiB,GAFjB,EAEsB,MAFtB;AAGAjM,SAAG+E,QAAH,CAAY,CAAZ,EAAe,CAAf,EAAkB/E,GAAGw0B,kBAArB,EAAyCx0B,GAAGy0B,mBAA5C;AACD;AACDpiB,WAAOxD,gBAAP,CAAwB,QAAxB,EAAkCqlB,QAAlC;AACAA;;AAEA;AACA,QAAIC,SAASn0B,GAAGm0B,MAAhB;AACA,QAAIO,aAAa,CAAjB;AACA,QAAIC,aAAa,CAAjB;AACAR,WAAOtlB,gBAAP,CAAwB,YAAxB,EAAsC,UAAC+lB,EAAD,EAAQ;AAC5C,UAAIA,GAAGC,OAAH,CAAW57B,MAAX,IAAqB,CAAzB,EAA4B;AAC1By7B,qBAAaE,GAAGC,OAAH,CAAW,CAAX,EAAcC,KAA3B;AACAH,qBAAaC,GAAGC,OAAH,CAAW,CAAX,EAAcE,KAA3B;AACD;AACF,KALD;AAMAZ,WAAOtlB,gBAAP,CAAwB,WAAxB,EAAqC,UAAC+lB,EAAD,EAAQ;AAC3C;AACA,UAAIA,GAAGC,OAAH,CAAW57B,MAAX,IAAqB,CAAzB,EAA4B;AAC1B,cAAK+7B,MAAL,CAAYJ,GAAGC,OAAH,CAAW,CAAX,EAAcC,KAAd,GAAsBJ,UAAlC,EAA8CE,GAAGC,OAAH,CAAW,CAAX,EAAcE,KAAd,GAAsBJ,UAApE;AACAD,qBAAaE,GAAGC,OAAH,CAAW,CAAX,EAAcC,KAA3B;AACAH,qBAAaC,GAAGC,OAAH,CAAW,CAAX,EAAcE,KAA3B;AACD;AACF,KAPD;AAQAZ,WAAOtlB,gBAAP,CAAwB,WAAxB,EAAqC,UAAC+lB,EAAD,EAAQ;AAC3C;AACA,UAAIA,GAAGK,OAAH,GAAa,CAAjB,EAAoB;AAClB,cAAKD,MAAL,CAAYJ,GAAGM,SAAf,EAA0BN,GAAGO,SAA7B;AACD;AACF,KALD;AAMAhB,WAAOtlB,gBAAP,CAAwB,aAAxB,EAAuC,UAAC+lB,EAAD,EAAQ;AAC7C;AACAA,SAAGQ,cAAH;AACD,KAHD;;AAKA,SAAKC,YAAL,GAAoB,KAAKC,OAAL,CAAajoB,IAAb,CAAkB,IAAlB,CAApB;AACAgF,WAAOkjB,qBAAP,CAA6B,KAAKF,YAAlC;AACD;;;;2BAEMG,G,EAAKC,K,EAAO;AACjB,WAAK1B,OAAL,IAAgByB,MAAM3B,UAAtB;AACA,WAAKG,SAAL,IAAkByB,QAAQ5B,UAA1B;;AAEA;AACA,UAAI,KAAKG,SAAL,GAAiB,CAACxc,KAAK4L,EAAN,GAAS,GAA9B,EAAmC;AAC/B,aAAK4Q,SAAL,GAAiB,CAACxc,KAAK4L,EAAN,GAAS,GAA1B;AACH;AACD,UAAI,KAAK4Q,SAAL,GAAiBxc,KAAK4L,EAAL,GAAQ,GAA7B,EAAkC;AAC9B,aAAK4Q,SAAL,GAAiBxc,KAAK4L,EAAL,GAAQ,GAAzB;AACH;;AAED,WAAKsS,UAAL;AACD;;;4BAEOzU,C,EAAG;AACT,UAAIjhB,KAAK,KAAKA,EAAd;AACAqS,aAAOkjB,qBAAP,CAA6B,KAAKF,YAAlC;;AAEA,WAAKlX,KAAL,CAAWwX,UAAX;;AAEA;AACA;AACA;AACA31B,SAAGsY,KAAH,CAAStY,GAAGszB,gBAAH,GAAsBtzB,GAAGuzB,gBAAlC;;AAEA;AACA;AACA;AACA,WAAKpV,KAAL,CAAWyX,IAAX,CAAgB,KAAK/wB,gBAArB,EAAuC,KAAKC,UAA5C;;AAEA,WAAKqZ,KAAL,CAAW0X,QAAX;AACD;;;iCAWY;AACX37B,qBAAK+5B,QAAL,CAAc,KAAKnvB,UAAnB;;AAEA5K,qBAAK47B,OAAL,CAAa,KAAKhxB,UAAlB,EAA8B,KAAKA,UAAnC,EAA+C,CAAC,KAAKkvB,SAArD;AACA95B,qBAAK67B,OAAL,CAAa,KAAKjxB,UAAlB,EAA8B,KAAKA,UAAnC,EAA+C,CAAC,KAAKivB,OAArD;;AAEA;AACA;AACA,UAAI,KAAKD,aAAT,EAAwB;AACtB55B,uBAAK87B,SAAL,CAAe,KAAKlxB,UAApB,EAAgC,KAAKA,UAArC,EAAiD,CAAC,CAAD,EAAI,CAAC,GAAL,EAAU,CAAV,CAAjD;AACD;AACF;;;wBApBkB;AACjB,aAAO,KAAKgvB,aAAZ;AACD,K;sBAEgB97B,K,EAAO;AACtB,WAAK87B,aAAL,GAAqB97B,KAArB;AACA,WAAK09B,UAAL;AACD;;;;;;;;;;;;;;;;;;;;;;;;;;ACjIH;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;AACA;;AAEA;AACA;AACA;AACA;AACA;AACA;AACA;;AAEA;;;;;;;;;;;;AAYA,IAAIO,UAAU,IAAd;AACA5jB,OAAO6jB,YAAP,GAAsB,YAAW;AAC/B;AACAD,YAAU,IAAV;AACD,CAHD;;AAKA,SAASE,gBAAT,GAA4B;AAC1B,MAAI,CAACF,OAAL,EAAc;AACZA,cAAU,EAAV;AACA,QAAIG,QAAQ/jB,OAAOyG,QAAP,CAAgBud,MAAhB,CAAuB5c,SAAvB,CAAiC,CAAjC,KAAuCpH,OAAOyG,QAAP,CAAgBwd,IAAhB,CAAqB7c,SAArB,CAA+B,CAA/B,CAAnD;AACA,QAAI8c,OAAOH,MAAMI,KAAN,CAAY,GAAZ,CAAX;AACA,SAAK,IAAIh6B,IAAI,CAAb,EAAgBA,IAAI+5B,KAAKt9B,MAAzB,EAAiCuD,GAAjC,EAAsC;AACpC,UAAIi6B,OAAOF,KAAK/5B,CAAL,EAAQg6B,KAAR,CAAc,GAAd,CAAX;AACAP,cAAQQ,KAAK,CAAL,EAAQC,WAAR,EAAR,IAAiCC,mBAAmBF,KAAK,CAAL,CAAnB,CAAjC;AACD;AACF;AACF;;IAEY1hB,S,WAAAA,S;;;;;;;8BACM1a,I,EAAMrB,Y,EAAc;AACnCm9B;AACA,UAAIS,YAAYv8B,KAAKq8B,WAAL,EAAhB;AACA,UAAIE,aAAaX,OAAjB,EAA0B;AACxB,eAAOA,QAAQW,SAAR,CAAP;AACD;AACD,aAAO59B,YAAP;AACD;;;2BAEaqB,I,EAAMrB,Y,EAAc;AAChCm9B;AACA,UAAIS,YAAYv8B,KAAKq8B,WAAL,EAAhB;AACA,UAAIE,aAAaX,OAAjB,EAA0B;AACxB,eAAOY,SAASZ,QAAQW,SAAR,CAAT,EAA6B,EAA7B,CAAP;AACD;AACD,aAAO59B,YAAP;AACD;;;6BAEeqB,I,EAAMrB,Y,EAAc;AAClCm9B;AACA,UAAIS,YAAYv8B,KAAKq8B,WAAL,EAAhB;AACA,UAAIE,aAAaX,OAAjB,EAA0B;AACxB,eAAOa,WAAWb,QAAQW,SAAR,CAAX,CAAP;AACD;AACD,aAAO59B,YAAP;AACD;;;4BAEcqB,I,EAAMrB,Y,EAAc;AACjCm9B;AACA,UAAIS,YAAYv8B,KAAKq8B,WAAL,EAAhB;AACA,UAAIE,aAAaX,OAAjB,EAA0B;AACxB,eAAOY,SAASZ,QAAQW,SAAR,CAAT,EAA6B,EAA7B,KAAoC,CAA3C;AACD;AACD,aAAO59B,YAAP;AACD","file":"cottontail.debug.js","sourcesContent":["(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine([], factory);\n\telse {\n\t\tvar a = factory();\n\t\tfor(var i in a) (typeof exports === 'object' ? exports : root)[i] = a[i];\n\t}\n})(window, function() {\nreturn "," \t// The module cache\n \tvar installedModules = {};\n\n \t// The require function\n \tfunction __webpack_require__(moduleId) {\n\n \t\t// Check if module is in cache\n \t\tif(installedModules[moduleId]) {\n \t\t\treturn installedModules[moduleId].exports;\n \t\t}\n \t\t// Create a new module (and put it into the cache)\n \t\tvar module = installedModules[moduleId] = {\n \t\t\ti: moduleId,\n \t\t\tl: false,\n \t\t\texports: {}\n \t\t};\n\n \t\t// Execute the module function\n \t\tmodules[moduleId].call(module.exports, module, module.exports, __webpack_require__);\n\n \t\t// Flag the module as loaded\n \t\tmodule.l = true;\n\n \t\t// Return the exports of the module\n \t\treturn module.exports;\n \t}\n\n\n \t// expose the modules object (__webpack_modules__)\n \t__webpack_require__.m = modules;\n\n \t// expose the module cache\n \t__webpack_require__.c = installedModules;\n\n \t// define getter function for harmony exports\n \t__webpack_require__.d = function(exports, name, getter) {\n \t\tif(!__webpack_require__.o(exports, name)) {\n \t\t\tObject.defineProperty(exports, name, { enumerable: true, get: getter });\n \t\t}\n \t};\n\n \t// define __esModule on exports\n \t__webpack_require__.r = function(exports) {\n \t\tif(typeof Symbol !== 'undefined' && Symbol.toStringTag) {\n \t\t\tObject.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });\n \t\t}\n \t\tObject.defineProperty(exports, '__esModule', { value: true });\n \t};\n\n \t// create a fake namespace object\n \t// mode & 1: value is a module id, require it\n \t// mode & 2: merge all properties of value into the ns\n \t// mode & 4: return value when already ns object\n \t// mode & 8|1: behave like require\n \t__webpack_require__.t = function(value, mode) {\n \t\tif(mode & 1) value = __webpack_require__(value);\n \t\tif(mode & 8) return value;\n \t\tif((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;\n \t\tvar ns = Object.create(null);\n \t\t__webpack_require__.r(ns);\n \t\tObject.defineProperty(ns, 'default', { enumerable: true, value: value });\n \t\tif(mode & 2 && typeof value != 'string') for(var key in value) __webpack_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));\n \t\treturn ns;\n \t};\n\n \t// getDefaultExport function for compatibility with non-harmony modules\n \t__webpack_require__.n = function(module) {\n \t\tvar getter = module && module.__esModule ?\n \t\t\tfunction getDefault() { return module['default']; } :\n \t\t\tfunction getModuleExports() { return module; };\n \t\t__webpack_require__.d(getter, 'a', getter);\n \t\treturn getter;\n \t};\n\n \t// Object.prototype.hasOwnProperty.call\n \t__webpack_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };\n\n \t// __webpack_public_path__\n \t__webpack_require__.p = \"\";\n\n\n \t// Load entry module and return exports\n \treturn __webpack_require__(__webpack_require__.s = \"./src/cottontail.js\");\n","/**\n * Common utilities\n * @module glMatrix\n */\n\n// Configuration Constants\nexport const EPSILON = 0.000001;\nexport let ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;\nexport const RANDOM = Math.random;\n\n/**\n * Sets the type of array used when creating new vectors and matrices\n *\n * @param {Type} type Array type, such as Float32Array or Array\n */\nexport function setMatrixArrayType(type) {\n  ARRAY_TYPE = type;\n}\n\nconst degree = Math.PI / 180;\n\n/**\n * Convert Degree To Radian\n *\n * @param {Number} a Angle in Degrees\n */\nexport function toRadian(a) {\n  return a * degree;\n}\n\n/**\n * Tests whether or not the arguments have approximately the same value, within an absolute\n * or relative tolerance of glMatrix.EPSILON (an absolute tolerance is used for values less\n * than or equal to 1.0, and a relative tolerance is used for larger values)\n *\n * @param {Number} a The first number to test.\n * @param {Number} b The second number to test.\n * @returns {Boolean} True if the numbers are approximately equal, false otherwise.\n */\nexport function equals(a, b) {\n  return Math.abs(a - b) <= EPSILON*Math.max(1.0, Math.abs(a), Math.abs(b));\n}\n","import * as glMatrix from \"./common.js\"\n\n/**\n * 2x2 Matrix\n * @module mat2\n */\n\n/**\n * Creates a new identity mat2\n *\n * @returns {mat2} a new 2x2 matrix\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[1] = 0;\n    out[2] = 0;\n  }\n  out[0] = 1;\n  out[3] = 1;\n  return out;\n}\n\n/**\n * Creates a new mat2 initialized with values from an existing matrix\n *\n * @param {mat2} a matrix to clone\n * @returns {mat2} a new 2x2 matrix\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Copy the values from one mat2 to another\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Set a mat2 to the identity matrix\n *\n * @param {mat2} out the receiving matrix\n * @returns {mat2} out\n */\nexport function identity(out) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  return out;\n}\n\n/**\n * Create a new mat2 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m10 Component in column 1, row 0 position (index 2)\n * @param {Number} m11 Component in column 1, row 1 position (index 3)\n * @returns {mat2} out A new 2x2 matrix\n */\nexport function fromValues(m00, m01, m10, m11) {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m10;\n  out[3] = m11;\n  return out;\n}\n\n/**\n * Set the components of a mat2 to the given values\n *\n * @param {mat2} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m10 Component in column 1, row 0 position (index 2)\n * @param {Number} m11 Component in column 1, row 1 position (index 3)\n * @returns {mat2} out\n */\nexport function set(out, m00, m01, m10, m11) {\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m10;\n  out[3] = m11;\n  return out;\n}\n\n/**\n * Transpose the values of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function transpose(out, a) {\n  // If we are transposing ourselves we can skip a few steps but have to cache\n  // some values\n  if (out === a) {\n    let a1 = a[1];\n    out[1] = a[2];\n    out[2] = a1;\n  } else {\n    out[0] = a[0];\n    out[1] = a[2];\n    out[2] = a[1];\n    out[3] = a[3];\n  }\n\n  return out;\n}\n\n/**\n * Inverts a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function invert(out, a) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n\n  // Calculate the determinant\n  let det = a0 * a3 - a2 * a1;\n\n  if (!det) {\n    return null;\n  }\n  det = 1.0 / det;\n\n  out[0] =  a3 * det;\n  out[1] = -a1 * det;\n  out[2] = -a2 * det;\n  out[3] =  a0 * det;\n\n  return out;\n}\n\n/**\n * Calculates the adjugate of a mat2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the source matrix\n * @returns {mat2} out\n */\nexport function adjoint(out, a) {\n  // Caching this value is nessecary if out == a\n  let a0 = a[0];\n  out[0] =  a[3];\n  out[1] = -a[1];\n  out[2] = -a[2];\n  out[3] =  a0;\n\n  return out;\n}\n\n/**\n * Calculates the determinant of a mat2\n *\n * @param {mat2} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n  return a[0] * a[3] - a[2] * a[1];\n}\n\n/**\n * Multiplies two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function multiply(out, a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n  out[0] = a0 * b0 + a2 * b1;\n  out[1] = a1 * b0 + a3 * b1;\n  out[2] = a0 * b2 + a2 * b3;\n  out[3] = a1 * b2 + a3 * b3;\n  return out;\n}\n\n/**\n * Rotates a mat2 by the given angle\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nexport function rotate(out, a, rad) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  out[0] = a0 *  c + a2 * s;\n  out[1] = a1 *  c + a3 * s;\n  out[2] = a0 * -s + a2 * c;\n  out[3] = a1 * -s + a3 * c;\n  return out;\n}\n\n/**\n * Scales the mat2 by the dimensions in the given vec2\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2} out\n **/\nexport function scale(out, a, v) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let v0 = v[0], v1 = v[1];\n  out[0] = a0 * v0;\n  out[1] = a1 * v0;\n  out[2] = a2 * v1;\n  out[3] = a3 * v1;\n  return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n *     mat2.identity(dest);\n *     mat2.rotate(dest, dest, rad);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2} out\n */\nexport function fromRotation(out, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  out[0] = c;\n  out[1] = s;\n  out[2] = -s;\n  out[3] = c;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n *     mat2.identity(dest);\n *     mat2.scale(dest, dest, vec);\n *\n * @param {mat2} out mat2 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2} out\n */\nexport function fromScaling(out, v) {\n  out[0] = v[0];\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = v[1];\n  return out;\n}\n\n/**\n * Returns a string representation of a mat2\n *\n * @param {mat2} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n  return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat2\n *\n * @param {mat2} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))\n}\n\n/**\n * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix\n * @param {mat2} L the lower triangular matrix\n * @param {mat2} D the diagonal matrix\n * @param {mat2} U the upper triangular matrix\n * @param {mat2} a the input matrix to factorize\n */\n\nexport function LDU(L, D, U, a) {\n  L[2] = a[2]/a[0];\n  U[0] = a[0];\n  U[1] = a[1];\n  U[3] = a[3] - L[2] * U[1];\n  return [L, D, U];\n}\n\n/**\n * Adds two mat2's\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @returns {mat2} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  out[3] = a[3] - b[3];\n  return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat2} a The first matrix.\n * @param {mat2} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat2} a The first matrix.\n * @param {mat2} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat2} out the receiving matrix\n * @param {mat2} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat2} out\n */\nexport function multiplyScalar(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  return out;\n}\n\n/**\n * Adds two mat2's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat2} out the receiving vector\n * @param {mat2} a the first operand\n * @param {mat2} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat2} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  out[3] = a[3] + (b[3] * scale);\n  return out;\n}\n\n/**\n * Alias for {@link mat2.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat2.subtract}\n * @function\n */\nexport const sub = subtract;\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 2x3 Matrix\n * @module mat2d\n *\n * @description\n * A mat2d contains six elements defined as:\n * <pre>\n * [a, c, tx,\n *  b, d, ty]\n * </pre>\n * This is a short form for the 3x3 matrix:\n * <pre>\n * [a, c, tx,\n *  b, d, ty,\n *  0, 0, 1]\n * </pre>\n * The last row is ignored so the array is shorter and operations are faster.\n */\n\n/**\n * Creates a new identity mat2d\n *\n * @returns {mat2d} a new 2x3 matrix\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(6);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[1] = 0;\n    out[2] = 0;\n    out[4] = 0;\n    out[5] = 0;\n  }\n  out[0] = 1;\n  out[3] = 1;\n  return out;\n}\n\n/**\n * Creates a new mat2d initialized with values from an existing matrix\n *\n * @param {mat2d} a matrix to clone\n * @returns {mat2d} a new 2x3 matrix\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(6);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  return out;\n}\n\n/**\n * Copy the values from one mat2d to another\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  return out;\n}\n\n/**\n * Set a mat2d to the identity matrix\n *\n * @param {mat2d} out the receiving matrix\n * @returns {mat2d} out\n */\nexport function identity(out) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  out[4] = 0;\n  out[5] = 0;\n  return out;\n}\n\n/**\n * Create a new mat2d with the given values\n *\n * @param {Number} a Component A (index 0)\n * @param {Number} b Component B (index 1)\n * @param {Number} c Component C (index 2)\n * @param {Number} d Component D (index 3)\n * @param {Number} tx Component TX (index 4)\n * @param {Number} ty Component TY (index 5)\n * @returns {mat2d} A new mat2d\n */\nexport function fromValues(a, b, c, d, tx, ty) {\n  let out = new glMatrix.ARRAY_TYPE(6);\n  out[0] = a;\n  out[1] = b;\n  out[2] = c;\n  out[3] = d;\n  out[4] = tx;\n  out[5] = ty;\n  return out;\n}\n\n/**\n * Set the components of a mat2d to the given values\n *\n * @param {mat2d} out the receiving matrix\n * @param {Number} a Component A (index 0)\n * @param {Number} b Component B (index 1)\n * @param {Number} c Component C (index 2)\n * @param {Number} d Component D (index 3)\n * @param {Number} tx Component TX (index 4)\n * @param {Number} ty Component TY (index 5)\n * @returns {mat2d} out\n */\nexport function set(out, a, b, c, d, tx, ty) {\n  out[0] = a;\n  out[1] = b;\n  out[2] = c;\n  out[3] = d;\n  out[4] = tx;\n  out[5] = ty;\n  return out;\n}\n\n/**\n * Inverts a mat2d\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the source matrix\n * @returns {mat2d} out\n */\nexport function invert(out, a) {\n  let aa = a[0], ab = a[1], ac = a[2], ad = a[3];\n  let atx = a[4], aty = a[5];\n\n  let det = aa * ad - ab * ac;\n  if(!det){\n    return null;\n  }\n  det = 1.0 / det;\n\n  out[0] = ad * det;\n  out[1] = -ab * det;\n  out[2] = -ac * det;\n  out[3] = aa * det;\n  out[4] = (ac * aty - ad * atx) * det;\n  out[5] = (ab * atx - aa * aty) * det;\n  return out;\n}\n\n/**\n * Calculates the determinant of a mat2d\n *\n * @param {mat2d} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n  return a[0] * a[3] - a[1] * a[2];\n}\n\n/**\n * Multiplies two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function multiply(out, a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n  out[0] = a0 * b0 + a2 * b1;\n  out[1] = a1 * b0 + a3 * b1;\n  out[2] = a0 * b2 + a2 * b3;\n  out[3] = a1 * b2 + a3 * b3;\n  out[4] = a0 * b4 + a2 * b5 + a4;\n  out[5] = a1 * b4 + a3 * b5 + a5;\n  return out;\n}\n\n/**\n * Rotates a mat2d by the given angle\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nexport function rotate(out, a, rad) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  out[0] = a0 *  c + a2 * s;\n  out[1] = a1 *  c + a3 * s;\n  out[2] = a0 * -s + a2 * c;\n  out[3] = a1 * -s + a3 * c;\n  out[4] = a4;\n  out[5] = a5;\n  return out;\n}\n\n/**\n * Scales the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat2d} out\n **/\nexport function scale(out, a, v) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n  let v0 = v[0], v1 = v[1];\n  out[0] = a0 * v0;\n  out[1] = a1 * v0;\n  out[2] = a2 * v1;\n  out[3] = a3 * v1;\n  out[4] = a4;\n  out[5] = a5;\n  return out;\n}\n\n/**\n * Translates the mat2d by the dimensions in the given vec2\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to translate\n * @param {vec2} v the vec2 to translate the matrix by\n * @returns {mat2d} out\n **/\nexport function translate(out, a, v) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n  let v0 = v[0], v1 = v[1];\n  out[0] = a0;\n  out[1] = a1;\n  out[2] = a2;\n  out[3] = a3;\n  out[4] = a0 * v0 + a2 * v1 + a4;\n  out[5] = a1 * v0 + a3 * v1 + a5;\n  return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n *     mat2d.identity(dest);\n *     mat2d.rotate(dest, dest, rad);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat2d} out\n */\nexport function fromRotation(out, rad) {\n  let s = Math.sin(rad), c = Math.cos(rad);\n  out[0] = c;\n  out[1] = s;\n  out[2] = -s;\n  out[3] = c;\n  out[4] = 0;\n  out[5] = 0;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n *     mat2d.identity(dest);\n *     mat2d.scale(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat2d} out\n */\nexport function fromScaling(out, v) {\n  out[0] = v[0];\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = v[1];\n  out[4] = 0;\n  out[5] = 0;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n *     mat2d.identity(dest);\n *     mat2d.translate(dest, dest, vec);\n *\n * @param {mat2d} out mat2d receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat2d} out\n */\nexport function fromTranslation(out, v) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  out[4] = v[0];\n  out[5] = v[1];\n  return out;\n}\n\n/**\n * Returns a string representation of a mat2d\n *\n * @param {mat2d} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n  return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +\n          a[3] + ', ' + a[4] + ', ' + a[5] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat2d\n *\n * @param {mat2d} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))\n}\n\n/**\n * Adds two mat2d's\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  out[4] = a[4] + b[4];\n  out[5] = a[5] + b[5];\n  return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @returns {mat2d} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  out[3] = a[3] - b[3];\n  out[4] = a[4] - b[4];\n  out[5] = a[5] - b[5];\n  return out;\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat2d} out the receiving matrix\n * @param {mat2d} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat2d} out\n */\nexport function multiplyScalar(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  out[4] = a[4] * b;\n  out[5] = a[5] * b;\n  return out;\n}\n\n/**\n * Adds two mat2d's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat2d} out the receiving vector\n * @param {mat2d} a the first operand\n * @param {mat2d} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat2d} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  out[3] = a[3] + (b[3] * scale);\n  out[4] = a[4] + (b[4] * scale);\n  out[5] = a[5] + (b[5] * scale);\n  return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat2d} a The first matrix.\n * @param {mat2d} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && a[4] === b[4] && a[5] === b[5];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat2d} a The first matrix.\n * @param {mat2d} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)));\n}\n\n/**\n * Alias for {@link mat2d.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat2d.subtract}\n * @function\n */\nexport const sub = subtract;\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 3x3 Matrix\n * @module mat3\n */\n\n/**\n * Creates a new identity mat3\n *\n * @returns {mat3} a new 3x3 matrix\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(9);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[1] = 0;\n    out[2] = 0;\n    out[3] = 0;\n    out[5] = 0;\n    out[6] = 0;\n    out[7] = 0;\n  }\n  out[0] = 1;\n  out[4] = 1;\n  out[8] = 1;\n  return out;\n}\n\n/**\n * Copies the upper-left 3x3 values into the given mat3.\n *\n * @param {mat3} out the receiving 3x3 matrix\n * @param {mat4} a   the source 4x4 matrix\n * @returns {mat3} out\n */\nexport function fromMat4(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[4];\n  out[4] = a[5];\n  out[5] = a[6];\n  out[6] = a[8];\n  out[7] = a[9];\n  out[8] = a[10];\n  return out;\n}\n\n/**\n * Creates a new mat3 initialized with values from an existing matrix\n *\n * @param {mat3} a matrix to clone\n * @returns {mat3} a new 3x3 matrix\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(9);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  out[6] = a[6];\n  out[7] = a[7];\n  out[8] = a[8];\n  return out;\n}\n\n/**\n * Copy the values from one mat3 to another\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  out[6] = a[6];\n  out[7] = a[7];\n  out[8] = a[8];\n  return out;\n}\n\n/**\n * Create a new mat3 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m10 Component in column 1, row 0 position (index 3)\n * @param {Number} m11 Component in column 1, row 1 position (index 4)\n * @param {Number} m12 Component in column 1, row 2 position (index 5)\n * @param {Number} m20 Component in column 2, row 0 position (index 6)\n * @param {Number} m21 Component in column 2, row 1 position (index 7)\n * @param {Number} m22 Component in column 2, row 2 position (index 8)\n * @returns {mat3} A new mat3\n */\nexport function fromValues(m00, m01, m02, m10, m11, m12, m20, m21, m22) {\n  let out = new glMatrix.ARRAY_TYPE(9);\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m02;\n  out[3] = m10;\n  out[4] = m11;\n  out[5] = m12;\n  out[6] = m20;\n  out[7] = m21;\n  out[8] = m22;\n  return out;\n}\n\n/**\n * Set the components of a mat3 to the given values\n *\n * @param {mat3} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m10 Component in column 1, row 0 position (index 3)\n * @param {Number} m11 Component in column 1, row 1 position (index 4)\n * @param {Number} m12 Component in column 1, row 2 position (index 5)\n * @param {Number} m20 Component in column 2, row 0 position (index 6)\n * @param {Number} m21 Component in column 2, row 1 position (index 7)\n * @param {Number} m22 Component in column 2, row 2 position (index 8)\n * @returns {mat3} out\n */\nexport function set(out, m00, m01, m02, m10, m11, m12, m20, m21, m22) {\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m02;\n  out[3] = m10;\n  out[4] = m11;\n  out[5] = m12;\n  out[6] = m20;\n  out[7] = m21;\n  out[8] = m22;\n  return out;\n}\n\n/**\n * Set a mat3 to the identity matrix\n *\n * @param {mat3} out the receiving matrix\n * @returns {mat3} out\n */\nexport function identity(out) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 1;\n  out[5] = 0;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 1;\n  return out;\n}\n\n/**\n * Transpose the values of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function transpose(out, a) {\n  // If we are transposing ourselves we can skip a few steps but have to cache some values\n  if (out === a) {\n    let a01 = a[1], a02 = a[2], a12 = a[5];\n    out[1] = a[3];\n    out[2] = a[6];\n    out[3] = a01;\n    out[5] = a[7];\n    out[6] = a02;\n    out[7] = a12;\n  } else {\n    out[0] = a[0];\n    out[1] = a[3];\n    out[2] = a[6];\n    out[3] = a[1];\n    out[4] = a[4];\n    out[5] = a[7];\n    out[6] = a[2];\n    out[7] = a[5];\n    out[8] = a[8];\n  }\n\n  return out;\n}\n\n/**\n * Inverts a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function invert(out, a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2];\n  let a10 = a[3], a11 = a[4], a12 = a[5];\n  let a20 = a[6], a21 = a[7], a22 = a[8];\n\n  let b01 = a22 * a11 - a12 * a21;\n  let b11 = -a22 * a10 + a12 * a20;\n  let b21 = a21 * a10 - a11 * a20;\n\n  // Calculate the determinant\n  let det = a00 * b01 + a01 * b11 + a02 * b21;\n\n  if (!det) {\n    return null;\n  }\n  det = 1.0 / det;\n\n  out[0] = b01 * det;\n  out[1] = (-a22 * a01 + a02 * a21) * det;\n  out[2] = (a12 * a01 - a02 * a11) * det;\n  out[3] = b11 * det;\n  out[4] = (a22 * a00 - a02 * a20) * det;\n  out[5] = (-a12 * a00 + a02 * a10) * det;\n  out[6] = b21 * det;\n  out[7] = (-a21 * a00 + a01 * a20) * det;\n  out[8] = (a11 * a00 - a01 * a10) * det;\n  return out;\n}\n\n/**\n * Calculates the adjugate of a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the source matrix\n * @returns {mat3} out\n */\nexport function adjoint(out, a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2];\n  let a10 = a[3], a11 = a[4], a12 = a[5];\n  let a20 = a[6], a21 = a[7], a22 = a[8];\n\n  out[0] = (a11 * a22 - a12 * a21);\n  out[1] = (a02 * a21 - a01 * a22);\n  out[2] = (a01 * a12 - a02 * a11);\n  out[3] = (a12 * a20 - a10 * a22);\n  out[4] = (a00 * a22 - a02 * a20);\n  out[5] = (a02 * a10 - a00 * a12);\n  out[6] = (a10 * a21 - a11 * a20);\n  out[7] = (a01 * a20 - a00 * a21);\n  out[8] = (a00 * a11 - a01 * a10);\n  return out;\n}\n\n/**\n * Calculates the determinant of a mat3\n *\n * @param {mat3} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2];\n  let a10 = a[3], a11 = a[4], a12 = a[5];\n  let a20 = a[6], a21 = a[7], a22 = a[8];\n\n  return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);\n}\n\n/**\n * Multiplies two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function multiply(out, a, b) {\n  let a00 = a[0], a01 = a[1], a02 = a[2];\n  let a10 = a[3], a11 = a[4], a12 = a[5];\n  let a20 = a[6], a21 = a[7], a22 = a[8];\n\n  let b00 = b[0], b01 = b[1], b02 = b[2];\n  let b10 = b[3], b11 = b[4], b12 = b[5];\n  let b20 = b[6], b21 = b[7], b22 = b[8];\n\n  out[0] = b00 * a00 + b01 * a10 + b02 * a20;\n  out[1] = b00 * a01 + b01 * a11 + b02 * a21;\n  out[2] = b00 * a02 + b01 * a12 + b02 * a22;\n\n  out[3] = b10 * a00 + b11 * a10 + b12 * a20;\n  out[4] = b10 * a01 + b11 * a11 + b12 * a21;\n  out[5] = b10 * a02 + b11 * a12 + b12 * a22;\n\n  out[6] = b20 * a00 + b21 * a10 + b22 * a20;\n  out[7] = b20 * a01 + b21 * a11 + b22 * a21;\n  out[8] = b20 * a02 + b21 * a12 + b22 * a22;\n  return out;\n}\n\n/**\n * Translate a mat3 by the given vector\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to translate\n * @param {vec2} v vector to translate by\n * @returns {mat3} out\n */\nexport function translate(out, a, v) {\n  let a00 = a[0], a01 = a[1], a02 = a[2],\n    a10 = a[3], a11 = a[4], a12 = a[5],\n    a20 = a[6], a21 = a[7], a22 = a[8],\n    x = v[0], y = v[1];\n\n  out[0] = a00;\n  out[1] = a01;\n  out[2] = a02;\n\n  out[3] = a10;\n  out[4] = a11;\n  out[5] = a12;\n\n  out[6] = x * a00 + y * a10 + a20;\n  out[7] = x * a01 + y * a11 + a21;\n  out[8] = x * a02 + y * a12 + a22;\n  return out;\n}\n\n/**\n * Rotates a mat3 by the given angle\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nexport function rotate(out, a, rad) {\n  let a00 = a[0], a01 = a[1], a02 = a[2],\n    a10 = a[3], a11 = a[4], a12 = a[5],\n    a20 = a[6], a21 = a[7], a22 = a[8],\n\n    s = Math.sin(rad),\n    c = Math.cos(rad);\n\n  out[0] = c * a00 + s * a10;\n  out[1] = c * a01 + s * a11;\n  out[2] = c * a02 + s * a12;\n\n  out[3] = c * a10 - s * a00;\n  out[4] = c * a11 - s * a01;\n  out[5] = c * a12 - s * a02;\n\n  out[6] = a20;\n  out[7] = a21;\n  out[8] = a22;\n  return out;\n};\n\n/**\n * Scales the mat3 by the dimensions in the given vec2\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to rotate\n * @param {vec2} v the vec2 to scale the matrix by\n * @returns {mat3} out\n **/\nexport function scale(out, a, v) {\n  let x = v[0], y = v[1];\n\n  out[0] = x * a[0];\n  out[1] = x * a[1];\n  out[2] = x * a[2];\n\n  out[3] = y * a[3];\n  out[4] = y * a[4];\n  out[5] = y * a[5];\n\n  out[6] = a[6];\n  out[7] = a[7];\n  out[8] = a[8];\n  return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n *     mat3.identity(dest);\n *     mat3.translate(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Translation vector\n * @returns {mat3} out\n */\nexport function fromTranslation(out, v) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 1;\n  out[5] = 0;\n  out[6] = v[0];\n  out[7] = v[1];\n  out[8] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from a given angle\n * This is equivalent to (but much faster than):\n *\n *     mat3.identity(dest);\n *     mat3.rotate(dest, dest, rad);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat3} out\n */\nexport function fromRotation(out, rad) {\n  let s = Math.sin(rad), c = Math.cos(rad);\n\n  out[0] = c;\n  out[1] = s;\n  out[2] = 0;\n\n  out[3] = -s;\n  out[4] = c;\n  out[5] = 0;\n\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n *     mat3.identity(dest);\n *     mat3.scale(dest, dest, vec);\n *\n * @param {mat3} out mat3 receiving operation result\n * @param {vec2} v Scaling vector\n * @returns {mat3} out\n */\nexport function fromScaling(out, v) {\n  out[0] = v[0];\n  out[1] = 0;\n  out[2] = 0;\n\n  out[3] = 0;\n  out[4] = v[1];\n  out[5] = 0;\n\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 1;\n  return out;\n}\n\n/**\n * Copies the values from a mat2d into a mat3\n *\n * @param {mat3} out the receiving matrix\n * @param {mat2d} a the matrix to copy\n * @returns {mat3} out\n **/\nexport function fromMat2d(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = 0;\n\n  out[3] = a[2];\n  out[4] = a[3];\n  out[5] = 0;\n\n  out[6] = a[4];\n  out[7] = a[5];\n  out[8] = 1;\n  return out;\n}\n\n/**\n* Calculates a 3x3 matrix from the given quaternion\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {quat} q Quaternion to create matrix from\n*\n* @returns {mat3} out\n*/\nexport function fromQuat(out, q) {\n  let x = q[0], y = q[1], z = q[2], w = q[3];\n  let x2 = x + x;\n  let y2 = y + y;\n  let z2 = z + z;\n\n  let xx = x * x2;\n  let yx = y * x2;\n  let yy = y * y2;\n  let zx = z * x2;\n  let zy = z * y2;\n  let zz = z * z2;\n  let wx = w * x2;\n  let wy = w * y2;\n  let wz = w * z2;\n\n  out[0] = 1 - yy - zz;\n  out[3] = yx - wz;\n  out[6] = zx + wy;\n\n  out[1] = yx + wz;\n  out[4] = 1 - xx - zz;\n  out[7] = zy - wx;\n\n  out[2] = zx - wy;\n  out[5] = zy + wx;\n  out[8] = 1 - xx - yy;\n\n  return out;\n}\n\n/**\n* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix\n*\n* @param {mat3} out mat3 receiving operation result\n* @param {mat4} a Mat4 to derive the normal matrix from\n*\n* @returns {mat3} out\n*/\nexport function normalFromMat4(out, a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n  let b00 = a00 * a11 - a01 * a10;\n  let b01 = a00 * a12 - a02 * a10;\n  let b02 = a00 * a13 - a03 * a10;\n  let b03 = a01 * a12 - a02 * a11;\n  let b04 = a01 * a13 - a03 * a11;\n  let b05 = a02 * a13 - a03 * a12;\n  let b06 = a20 * a31 - a21 * a30;\n  let b07 = a20 * a32 - a22 * a30;\n  let b08 = a20 * a33 - a23 * a30;\n  let b09 = a21 * a32 - a22 * a31;\n  let b10 = a21 * a33 - a23 * a31;\n  let b11 = a22 * a33 - a23 * a32;\n\n  // Calculate the determinant\n  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n  if (!det) {\n    return null;\n  }\n  det = 1.0 / det;\n\n  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n  out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n  out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n\n  out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n  out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n  out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n\n  out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n  out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n  out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n\n  return out;\n}\n\n/**\n * Generates a 2D projection matrix with the given bounds\n *\n * @param {mat3} out mat3 frustum matrix will be written into\n * @param {number} width Width of your gl context\n * @param {number} height Height of gl context\n * @returns {mat3} out\n */\nexport function projection(out, width, height) {\n    out[0] = 2 / width;\n    out[1] = 0;\n    out[2] = 0;\n    out[3] = 0;\n    out[4] = -2 / height;\n    out[5] = 0;\n    out[6] = -1;\n    out[7] = 1;\n    out[8] = 1;\n    return out;\n}\n\n/**\n * Returns a string representation of a mat3\n *\n * @param {mat3} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n  return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +\n          a[3] + ', ' + a[4] + ', ' + a[5] + ', ' +\n          a[6] + ', ' + a[7] + ', ' + a[8] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat3\n *\n * @param {mat3} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))\n}\n\n/**\n * Adds two mat3's\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  out[4] = a[4] + b[4];\n  out[5] = a[5] + b[5];\n  out[6] = a[6] + b[6];\n  out[7] = a[7] + b[7];\n  out[8] = a[8] + b[8];\n  return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @returns {mat3} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  out[3] = a[3] - b[3];\n  out[4] = a[4] - b[4];\n  out[5] = a[5] - b[5];\n  out[6] = a[6] - b[6];\n  out[7] = a[7] - b[7];\n  out[8] = a[8] - b[8];\n  return out;\n}\n\n\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat3} out the receiving matrix\n * @param {mat3} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat3} out\n */\nexport function multiplyScalar(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  out[4] = a[4] * b;\n  out[5] = a[5] * b;\n  out[6] = a[6] * b;\n  out[7] = a[7] * b;\n  out[8] = a[8] * b;\n  return out;\n}\n\n/**\n * Adds two mat3's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat3} out the receiving vector\n * @param {mat3} a the first operand\n * @param {mat3} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat3} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  out[3] = a[3] + (b[3] * scale);\n  out[4] = a[4] + (b[4] * scale);\n  out[5] = a[5] + (b[5] * scale);\n  out[6] = a[6] + (b[6] * scale);\n  out[7] = a[7] + (b[7] * scale);\n  out[8] = a[8] + (b[8] * scale);\n  return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat3} a The first matrix.\n * @param {mat3} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] &&\n         a[3] === b[3] && a[4] === b[4] && a[5] === b[5] &&\n         a[6] === b[6] && a[7] === b[7] && a[8] === b[8];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat3} a The first matrix.\n * @param {mat3} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7], a8 = a[8];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7], b8 = b[8];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&\n          Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&\n          Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&\n          Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)));\n}\n\n/**\n * Alias for {@link mat3.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat3.subtract}\n * @function\n */\nexport const sub = subtract;\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 4x4 Matrix<br>Format: column-major, when typed out it looks like row-major<br>The matrices are being post multiplied.\n * @module mat4\n */\n\n/**\n * Creates a new identity mat4\n *\n * @returns {mat4} a new 4x4 matrix\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(16);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[1] = 0;\n    out[2] = 0;\n    out[3] = 0;\n    out[4] = 0;\n    out[6] = 0;\n    out[7] = 0;\n    out[8] = 0;\n    out[9] = 0;\n    out[11] = 0;\n    out[12] = 0;\n    out[13] = 0;\n    out[14] = 0;\n  }\n  out[0] = 1;\n  out[5] = 1;\n  out[10] = 1;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a new mat4 initialized with values from an existing matrix\n *\n * @param {mat4} a matrix to clone\n * @returns {mat4} a new 4x4 matrix\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(16);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  out[6] = a[6];\n  out[7] = a[7];\n  out[8] = a[8];\n  out[9] = a[9];\n  out[10] = a[10];\n  out[11] = a[11];\n  out[12] = a[12];\n  out[13] = a[13];\n  out[14] = a[14];\n  out[15] = a[15];\n  return out;\n}\n\n/**\n * Copy the values from one mat4 to another\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  out[6] = a[6];\n  out[7] = a[7];\n  out[8] = a[8];\n  out[9] = a[9];\n  out[10] = a[10];\n  out[11] = a[11];\n  out[12] = a[12];\n  out[13] = a[13];\n  out[14] = a[14];\n  out[15] = a[15];\n  return out;\n}\n\n/**\n * Create a new mat4 with the given values\n *\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m03 Component in column 0, row 3 position (index 3)\n * @param {Number} m10 Component in column 1, row 0 position (index 4)\n * @param {Number} m11 Component in column 1, row 1 position (index 5)\n * @param {Number} m12 Component in column 1, row 2 position (index 6)\n * @param {Number} m13 Component in column 1, row 3 position (index 7)\n * @param {Number} m20 Component in column 2, row 0 position (index 8)\n * @param {Number} m21 Component in column 2, row 1 position (index 9)\n * @param {Number} m22 Component in column 2, row 2 position (index 10)\n * @param {Number} m23 Component in column 2, row 3 position (index 11)\n * @param {Number} m30 Component in column 3, row 0 position (index 12)\n * @param {Number} m31 Component in column 3, row 1 position (index 13)\n * @param {Number} m32 Component in column 3, row 2 position (index 14)\n * @param {Number} m33 Component in column 3, row 3 position (index 15)\n * @returns {mat4} A new mat4\n */\nexport function fromValues(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {\n  let out = new glMatrix.ARRAY_TYPE(16);\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m02;\n  out[3] = m03;\n  out[4] = m10;\n  out[5] = m11;\n  out[6] = m12;\n  out[7] = m13;\n  out[8] = m20;\n  out[9] = m21;\n  out[10] = m22;\n  out[11] = m23;\n  out[12] = m30;\n  out[13] = m31;\n  out[14] = m32;\n  out[15] = m33;\n  return out;\n}\n\n/**\n * Set the components of a mat4 to the given values\n *\n * @param {mat4} out the receiving matrix\n * @param {Number} m00 Component in column 0, row 0 position (index 0)\n * @param {Number} m01 Component in column 0, row 1 position (index 1)\n * @param {Number} m02 Component in column 0, row 2 position (index 2)\n * @param {Number} m03 Component in column 0, row 3 position (index 3)\n * @param {Number} m10 Component in column 1, row 0 position (index 4)\n * @param {Number} m11 Component in column 1, row 1 position (index 5)\n * @param {Number} m12 Component in column 1, row 2 position (index 6)\n * @param {Number} m13 Component in column 1, row 3 position (index 7)\n * @param {Number} m20 Component in column 2, row 0 position (index 8)\n * @param {Number} m21 Component in column 2, row 1 position (index 9)\n * @param {Number} m22 Component in column 2, row 2 position (index 10)\n * @param {Number} m23 Component in column 2, row 3 position (index 11)\n * @param {Number} m30 Component in column 3, row 0 position (index 12)\n * @param {Number} m31 Component in column 3, row 1 position (index 13)\n * @param {Number} m32 Component in column 3, row 2 position (index 14)\n * @param {Number} m33 Component in column 3, row 3 position (index 15)\n * @returns {mat4} out\n */\nexport function set(out, m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {\n  out[0] = m00;\n  out[1] = m01;\n  out[2] = m02;\n  out[3] = m03;\n  out[4] = m10;\n  out[5] = m11;\n  out[6] = m12;\n  out[7] = m13;\n  out[8] = m20;\n  out[9] = m21;\n  out[10] = m22;\n  out[11] = m23;\n  out[12] = m30;\n  out[13] = m31;\n  out[14] = m32;\n  out[15] = m33;\n  return out;\n}\n\n\n/**\n * Set a mat4 to the identity matrix\n *\n * @param {mat4} out the receiving matrix\n * @returns {mat4} out\n */\nexport function identity(out) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = 1;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = 1;\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Transpose the values of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function transpose(out, a) {\n  // If we are transposing ourselves we can skip a few steps but have to cache some values\n  if (out === a) {\n    let a01 = a[1], a02 = a[2], a03 = a[3];\n    let a12 = a[6], a13 = a[7];\n    let a23 = a[11];\n\n    out[1] = a[4];\n    out[2] = a[8];\n    out[3] = a[12];\n    out[4] = a01;\n    out[6] = a[9];\n    out[7] = a[13];\n    out[8] = a02;\n    out[9] = a12;\n    out[11] = a[14];\n    out[12] = a03;\n    out[13] = a13;\n    out[14] = a23;\n  } else {\n    out[0] = a[0];\n    out[1] = a[4];\n    out[2] = a[8];\n    out[3] = a[12];\n    out[4] = a[1];\n    out[5] = a[5];\n    out[6] = a[9];\n    out[7] = a[13];\n    out[8] = a[2];\n    out[9] = a[6];\n    out[10] = a[10];\n    out[11] = a[14];\n    out[12] = a[3];\n    out[13] = a[7];\n    out[14] = a[11];\n    out[15] = a[15];\n  }\n\n  return out;\n}\n\n/**\n * Inverts a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function invert(out, a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n  let b00 = a00 * a11 - a01 * a10;\n  let b01 = a00 * a12 - a02 * a10;\n  let b02 = a00 * a13 - a03 * a10;\n  let b03 = a01 * a12 - a02 * a11;\n  let b04 = a01 * a13 - a03 * a11;\n  let b05 = a02 * a13 - a03 * a12;\n  let b06 = a20 * a31 - a21 * a30;\n  let b07 = a20 * a32 - a22 * a30;\n  let b08 = a20 * a33 - a23 * a30;\n  let b09 = a21 * a32 - a22 * a31;\n  let b10 = a21 * a33 - a23 * a31;\n  let b11 = a22 * a33 - a23 * a32;\n\n  // Calculate the determinant\n  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n\n  if (!det) {\n    return null;\n  }\n  det = 1.0 / det;\n\n  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;\n  out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;\n  out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;\n  out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;\n  out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;\n  out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;\n  out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;\n  out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;\n  out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;\n  out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;\n  out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;\n  out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;\n  out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;\n  out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;\n  out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;\n  out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;\n\n  return out;\n}\n\n/**\n * Calculates the adjugate of a mat4\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the source matrix\n * @returns {mat4} out\n */\nexport function adjoint(out, a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n  out[0]  =  (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));\n  out[1]  = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));\n  out[2]  =  (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));\n  out[3]  = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));\n  out[4]  = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));\n  out[5]  =  (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));\n  out[6]  = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));\n  out[7]  =  (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));\n  out[8]  =  (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));\n  out[9]  = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));\n  out[10] =  (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));\n  out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));\n  out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));\n  out[13] =  (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));\n  out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));\n  out[15] =  (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));\n  return out;\n}\n\n/**\n * Calculates the determinant of a mat4\n *\n * @param {mat4} a the source matrix\n * @returns {Number} determinant of a\n */\nexport function determinant(a) {\n  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n  let b00 = a00 * a11 - a01 * a10;\n  let b01 = a00 * a12 - a02 * a10;\n  let b02 = a00 * a13 - a03 * a10;\n  let b03 = a01 * a12 - a02 * a11;\n  let b04 = a01 * a13 - a03 * a11;\n  let b05 = a02 * a13 - a03 * a12;\n  let b06 = a20 * a31 - a21 * a30;\n  let b07 = a20 * a32 - a22 * a30;\n  let b08 = a20 * a33 - a23 * a30;\n  let b09 = a21 * a32 - a22 * a31;\n  let b10 = a21 * a33 - a23 * a31;\n  let b11 = a22 * a33 - a23 * a32;\n\n  // Calculate the determinant\n  return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;\n}\n\n/**\n * Multiplies two mat4s\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function multiply(out, a, b) {\n  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];\n  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];\n  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];\n  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];\n\n  // Cache only the current line of the second matrix\n  let b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n  out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n  out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n  out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n  out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n  b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];\n  out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n  out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n  out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n  out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n  b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];\n  out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n  out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n  out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n  out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n\n  b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];\n  out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;\n  out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;\n  out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;\n  out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;\n  return out;\n}\n\n/**\n * Translate a mat4 by the given vector\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to translate\n * @param {vec3} v vector to translate by\n * @returns {mat4} out\n */\nexport function translate(out, a, v) {\n  let x = v[0], y = v[1], z = v[2];\n  let a00, a01, a02, a03;\n  let a10, a11, a12, a13;\n  let a20, a21, a22, a23;\n\n  if (a === out) {\n    out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];\n    out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];\n    out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];\n    out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];\n  } else {\n    a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n    a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n    a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n    out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;\n    out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;\n    out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;\n\n    out[12] = a00 * x + a10 * y + a20 * z + a[12];\n    out[13] = a01 * x + a11 * y + a21 * z + a[13];\n    out[14] = a02 * x + a12 * y + a22 * z + a[14];\n    out[15] = a03 * x + a13 * y + a23 * z + a[15];\n  }\n\n  return out;\n}\n\n/**\n * Scales the mat4 by the dimensions in the given vec3 not using vectorization\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {vec3} v the vec3 to scale the matrix by\n * @returns {mat4} out\n **/\nexport function scale(out, a, v) {\n  let x = v[0], y = v[1], z = v[2];\n\n  out[0] = a[0] * x;\n  out[1] = a[1] * x;\n  out[2] = a[2] * x;\n  out[3] = a[3] * x;\n  out[4] = a[4] * y;\n  out[5] = a[5] * y;\n  out[6] = a[6] * y;\n  out[7] = a[7] * y;\n  out[8] = a[8] * z;\n  out[9] = a[9] * z;\n  out[10] = a[10] * z;\n  out[11] = a[11] * z;\n  out[12] = a[12];\n  out[13] = a[13];\n  out[14] = a[14];\n  out[15] = a[15];\n  return out;\n}\n\n/**\n * Rotates a mat4 by the given angle around the given axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nexport function rotate(out, a, rad, axis) {\n  let x = axis[0], y = axis[1], z = axis[2];\n  let len = Math.sqrt(x * x + y * y + z * z);\n  let s, c, t;\n  let a00, a01, a02, a03;\n  let a10, a11, a12, a13;\n  let a20, a21, a22, a23;\n  let b00, b01, b02;\n  let b10, b11, b12;\n  let b20, b21, b22;\n\n  if (len < glMatrix.EPSILON) { return null; }\n\n  len = 1 / len;\n  x *= len;\n  y *= len;\n  z *= len;\n\n  s = Math.sin(rad);\n  c = Math.cos(rad);\n  t = 1 - c;\n\n  a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];\n  a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];\n  a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];\n\n  // Construct the elements of the rotation matrix\n  b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;\n  b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;\n  b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;\n\n  // Perform rotation-specific matrix multiplication\n  out[0] = a00 * b00 + a10 * b01 + a20 * b02;\n  out[1] = a01 * b00 + a11 * b01 + a21 * b02;\n  out[2] = a02 * b00 + a12 * b01 + a22 * b02;\n  out[3] = a03 * b00 + a13 * b01 + a23 * b02;\n  out[4] = a00 * b10 + a10 * b11 + a20 * b12;\n  out[5] = a01 * b10 + a11 * b11 + a21 * b12;\n  out[6] = a02 * b10 + a12 * b11 + a22 * b12;\n  out[7] = a03 * b10 + a13 * b11 + a23 * b12;\n  out[8] = a00 * b20 + a10 * b21 + a20 * b22;\n  out[9] = a01 * b20 + a11 * b21 + a21 * b22;\n  out[10] = a02 * b20 + a12 * b21 + a22 * b22;\n  out[11] = a03 * b20 + a13 * b21 + a23 * b22;\n\n  if (a !== out) { // If the source and destination differ, copy the unchanged last row\n    out[12] = a[12];\n    out[13] = a[13];\n    out[14] = a[14];\n    out[15] = a[15];\n  }\n  return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the X axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateX(out, a, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  let a10 = a[4];\n  let a11 = a[5];\n  let a12 = a[6];\n  let a13 = a[7];\n  let a20 = a[8];\n  let a21 = a[9];\n  let a22 = a[10];\n  let a23 = a[11];\n\n  if (a !== out) { // If the source and destination differ, copy the unchanged rows\n    out[0]  = a[0];\n    out[1]  = a[1];\n    out[2]  = a[2];\n    out[3]  = a[3];\n    out[12] = a[12];\n    out[13] = a[13];\n    out[14] = a[14];\n    out[15] = a[15];\n  }\n\n  // Perform axis-specific matrix multiplication\n  out[4] = a10 * c + a20 * s;\n  out[5] = a11 * c + a21 * s;\n  out[6] = a12 * c + a22 * s;\n  out[7] = a13 * c + a23 * s;\n  out[8] = a20 * c - a10 * s;\n  out[9] = a21 * c - a11 * s;\n  out[10] = a22 * c - a12 * s;\n  out[11] = a23 * c - a13 * s;\n  return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the Y axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateY(out, a, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  let a00 = a[0];\n  let a01 = a[1];\n  let a02 = a[2];\n  let a03 = a[3];\n  let a20 = a[8];\n  let a21 = a[9];\n  let a22 = a[10];\n  let a23 = a[11];\n\n  if (a !== out) { // If the source and destination differ, copy the unchanged rows\n    out[4]  = a[4];\n    out[5]  = a[5];\n    out[6]  = a[6];\n    out[7]  = a[7];\n    out[12] = a[12];\n    out[13] = a[13];\n    out[14] = a[14];\n    out[15] = a[15];\n  }\n\n  // Perform axis-specific matrix multiplication\n  out[0] = a00 * c - a20 * s;\n  out[1] = a01 * c - a21 * s;\n  out[2] = a02 * c - a22 * s;\n  out[3] = a03 * c - a23 * s;\n  out[8] = a00 * s + a20 * c;\n  out[9] = a01 * s + a21 * c;\n  out[10] = a02 * s + a22 * c;\n  out[11] = a03 * s + a23 * c;\n  return out;\n}\n\n/**\n * Rotates a matrix by the given angle around the Z axis\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to rotate\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function rotateZ(out, a, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n  let a00 = a[0];\n  let a01 = a[1];\n  let a02 = a[2];\n  let a03 = a[3];\n  let a10 = a[4];\n  let a11 = a[5];\n  let a12 = a[6];\n  let a13 = a[7];\n\n  if (a !== out) { // If the source and destination differ, copy the unchanged last row\n    out[8]  = a[8];\n    out[9]  = a[9];\n    out[10] = a[10];\n    out[11] = a[11];\n    out[12] = a[12];\n    out[13] = a[13];\n    out[14] = a[14];\n    out[15] = a[15];\n  }\n\n  // Perform axis-specific matrix multiplication\n  out[0] = a00 * c + a10 * s;\n  out[1] = a01 * c + a11 * s;\n  out[2] = a02 * c + a12 * s;\n  out[3] = a03 * c + a13 * s;\n  out[4] = a10 * c - a00 * s;\n  out[5] = a11 * c - a01 * s;\n  out[6] = a12 * c - a02 * s;\n  out[7] = a13 * c - a03 * s;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector translation\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.translate(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nexport function fromTranslation(out, v) {\n  out[0] = 1;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = 1;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = 1;\n  out[11] = 0;\n  out[12] = v[0];\n  out[13] = v[1];\n  out[14] = v[2];\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from a vector scaling\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.scale(dest, dest, vec);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {vec3} v Scaling vector\n * @returns {mat4} out\n */\nexport function fromScaling(out, v) {\n  out[0] = v[0];\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = v[1];\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = v[2];\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from a given angle around a given axis\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.rotate(dest, dest, rad, axis);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @param {vec3} axis the axis to rotate around\n * @returns {mat4} out\n */\nexport function fromRotation(out, rad, axis) {\n  let x = axis[0], y = axis[1], z = axis[2];\n  let len = Math.sqrt(x * x + y * y + z * z);\n  let s, c, t;\n\n  if (len < glMatrix.EPSILON) { return null; }\n\n  len = 1 / len;\n  x *= len;\n  y *= len;\n  z *= len;\n\n  s = Math.sin(rad);\n  c = Math.cos(rad);\n  t = 1 - c;\n\n  // Perform rotation-specific matrix multiplication\n  out[0] = x * x * t + c;\n  out[1] = y * x * t + z * s;\n  out[2] = z * x * t - y * s;\n  out[3] = 0;\n  out[4] = x * y * t - z * s;\n  out[5] = y * y * t + c;\n  out[6] = z * y * t + x * s;\n  out[7] = 0;\n  out[8] = x * z * t + y * s;\n  out[9] = y * z * t - x * s;\n  out[10] = z * z * t + c;\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from the given angle around the X axis\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.rotateX(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromXRotation(out, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n\n  // Perform axis-specific matrix multiplication\n  out[0]  = 1;\n  out[1]  = 0;\n  out[2]  = 0;\n  out[3]  = 0;\n  out[4] = 0;\n  out[5] = c;\n  out[6] = s;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = -s;\n  out[10] = c;\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Y axis\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.rotateY(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromYRotation(out, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n\n  // Perform axis-specific matrix multiplication\n  out[0]  = c;\n  out[1]  = 0;\n  out[2]  = -s;\n  out[3]  = 0;\n  out[4] = 0;\n  out[5] = 1;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = s;\n  out[9] = 0;\n  out[10] = c;\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from the given angle around the Z axis\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.rotateZ(dest, dest, rad);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {Number} rad the angle to rotate the matrix by\n * @returns {mat4} out\n */\nexport function fromZRotation(out, rad) {\n  let s = Math.sin(rad);\n  let c = Math.cos(rad);\n\n  // Perform axis-specific matrix multiplication\n  out[0]  = c;\n  out[1]  = s;\n  out[2]  = 0;\n  out[3]  = 0;\n  out[4] = -s;\n  out[5] = c;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = 1;\n  out[11] = 0;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation and vector translation\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.translate(dest, vec);\n *     let quatMat = mat4.create();\n *     quat4.toMat4(quat, quatMat);\n *     mat4.multiply(dest, quatMat);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @returns {mat4} out\n */\nexport function fromRotationTranslation(out, q, v) {\n  // Quaternion math\n  let x = q[0], y = q[1], z = q[2], w = q[3];\n  let x2 = x + x;\n  let y2 = y + y;\n  let z2 = z + z;\n\n  let xx = x * x2;\n  let xy = x * y2;\n  let xz = x * z2;\n  let yy = y * y2;\n  let yz = y * z2;\n  let zz = z * z2;\n  let wx = w * x2;\n  let wy = w * y2;\n  let wz = w * z2;\n\n  out[0] = 1 - (yy + zz);\n  out[1] = xy + wz;\n  out[2] = xz - wy;\n  out[3] = 0;\n  out[4] = xy - wz;\n  out[5] = 1 - (xx + zz);\n  out[6] = yz + wx;\n  out[7] = 0;\n  out[8] = xz + wy;\n  out[9] = yz - wx;\n  out[10] = 1 - (xx + yy);\n  out[11] = 0;\n  out[12] = v[0];\n  out[13] = v[1];\n  out[14] = v[2];\n  out[15] = 1;\n\n  return out;\n}\n\n/**\n * Creates a new mat4 from a dual quat.\n *\n * @param {mat4} out Matrix\n * @param {quat2} a Dual Quaternion\n * @returns {mat4} mat4 receiving operation result\n */\nexport function fromQuat2(out, a) {\n  let translation = new glMatrix.ARRAY_TYPE(3);\n  let bx = -a[0], by = -a[1], bz = -a[2], bw = a[3],\n  ax = a[4], ay = a[5], az = a[6], aw = a[7];\n\n  let magnitude = bx * bx + by * by + bz * bz + bw * bw;\n  //Only scale if it makes sense\n  if (magnitude > 0) {\n    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2 / magnitude;\n    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2 / magnitude;\n    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2 / magnitude;\n  } else {\n    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;\n    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;\n    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;\n  }\n  fromRotationTranslation(out, a, translation);\n  return out;\n}\n\n/**\n * Returns the translation vector component of a transformation\n *  matrix. If a matrix is built with fromRotationTranslation,\n *  the returned vector will be the same as the translation vector\n *  originally supplied.\n * @param  {vec3} out Vector to receive translation component\n * @param  {mat4} mat Matrix to be decomposed (input)\n * @return {vec3} out\n */\nexport function getTranslation(out, mat) {\n  out[0] = mat[12];\n  out[1] = mat[13];\n  out[2] = mat[14];\n\n  return out;\n}\n\n/**\n * Returns the scaling factor component of a transformation\n *  matrix. If a matrix is built with fromRotationTranslationScale\n *  with a normalized Quaternion paramter, the returned vector will be\n *  the same as the scaling vector\n *  originally supplied.\n * @param  {vec3} out Vector to receive scaling factor component\n * @param  {mat4} mat Matrix to be decomposed (input)\n * @return {vec3} out\n */\nexport function getScaling(out, mat) {\n  let m11 = mat[0];\n  let m12 = mat[1];\n  let m13 = mat[2];\n  let m21 = mat[4];\n  let m22 = mat[5];\n  let m23 = mat[6];\n  let m31 = mat[8];\n  let m32 = mat[9];\n  let m33 = mat[10];\n\n  out[0] = Math.sqrt(m11 * m11 + m12 * m12 + m13 * m13);\n  out[1] = Math.sqrt(m21 * m21 + m22 * m22 + m23 * m23);\n  out[2] = Math.sqrt(m31 * m31 + m32 * m32 + m33 * m33);\n\n  return out;\n}\n\n/**\n * Returns a quaternion representing the rotational component\n *  of a transformation matrix. If a matrix is built with\n *  fromRotationTranslation, the returned quaternion will be the\n *  same as the quaternion originally supplied.\n * @param {quat} out Quaternion to receive the rotation component\n * @param {mat4} mat Matrix to be decomposed (input)\n * @return {quat} out\n */\nexport function getRotation(out, mat) {\n  // Algorithm taken from http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm\n  let trace = mat[0] + mat[5] + mat[10];\n  let S = 0;\n\n  if (trace > 0) {\n    S = Math.sqrt(trace + 1.0) * 2;\n    out[3] = 0.25 * S;\n    out[0] = (mat[6] - mat[9]) / S;\n    out[1] = (mat[8] - mat[2]) / S;\n    out[2] = (mat[1] - mat[4]) / S;\n  } else if ((mat[0] > mat[5]) && (mat[0] > mat[10])) {\n    S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2;\n    out[3] = (mat[6] - mat[9]) / S;\n    out[0] = 0.25 * S;\n    out[1] = (mat[1] + mat[4]) / S;\n    out[2] = (mat[8] + mat[2]) / S;\n  } else if (mat[5] > mat[10]) {\n    S = Math.sqrt(1.0 + mat[5] - mat[0] - mat[10]) * 2;\n    out[3] = (mat[8] - mat[2]) / S;\n    out[0] = (mat[1] + mat[4]) / S;\n    out[1] = 0.25 * S;\n    out[2] = (mat[6] + mat[9]) / S;\n  } else {\n    S = Math.sqrt(1.0 + mat[10] - mat[0] - mat[5]) * 2;\n    out[3] = (mat[1] - mat[4]) / S;\n    out[0] = (mat[8] + mat[2]) / S;\n    out[1] = (mat[6] + mat[9]) / S;\n    out[2] = 0.25 * S;\n  }\n\n  return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.translate(dest, vec);\n *     let quatMat = mat4.create();\n *     quat4.toMat4(quat, quatMat);\n *     mat4.multiply(dest, quatMat);\n *     mat4.scale(dest, scale)\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @returns {mat4} out\n */\nexport function fromRotationTranslationScale(out, q, v, s) {\n  // Quaternion math\n  let x = q[0], y = q[1], z = q[2], w = q[3];\n  let x2 = x + x;\n  let y2 = y + y;\n  let z2 = z + z;\n\n  let xx = x * x2;\n  let xy = x * y2;\n  let xz = x * z2;\n  let yy = y * y2;\n  let yz = y * z2;\n  let zz = z * z2;\n  let wx = w * x2;\n  let wy = w * y2;\n  let wz = w * z2;\n  let sx = s[0];\n  let sy = s[1];\n  let sz = s[2];\n\n  out[0] = (1 - (yy + zz)) * sx;\n  out[1] = (xy + wz) * sx;\n  out[2] = (xz - wy) * sx;\n  out[3] = 0;\n  out[4] = (xy - wz) * sy;\n  out[5] = (1 - (xx + zz)) * sy;\n  out[6] = (yz + wx) * sy;\n  out[7] = 0;\n  out[8] = (xz + wy) * sz;\n  out[9] = (yz - wx) * sz;\n  out[10] = (1 - (xx + yy)) * sz;\n  out[11] = 0;\n  out[12] = v[0];\n  out[13] = v[1];\n  out[14] = v[2];\n  out[15] = 1;\n\n  return out;\n}\n\n/**\n * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin\n * This is equivalent to (but much faster than):\n *\n *     mat4.identity(dest);\n *     mat4.translate(dest, vec);\n *     mat4.translate(dest, origin);\n *     let quatMat = mat4.create();\n *     quat4.toMat4(quat, quatMat);\n *     mat4.multiply(dest, quatMat);\n *     mat4.scale(dest, scale)\n *     mat4.translate(dest, negativeOrigin);\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat4} q Rotation quaternion\n * @param {vec3} v Translation vector\n * @param {vec3} s Scaling vector\n * @param {vec3} o The origin vector around which to scale and rotate\n * @returns {mat4} out\n */\nexport function fromRotationTranslationScaleOrigin(out, q, v, s, o) {\n  // Quaternion math\n  let x = q[0], y = q[1], z = q[2], w = q[3];\n  let x2 = x + x;\n  let y2 = y + y;\n  let z2 = z + z;\n\n  let xx = x * x2;\n  let xy = x * y2;\n  let xz = x * z2;\n  let yy = y * y2;\n  let yz = y * z2;\n  let zz = z * z2;\n  let wx = w * x2;\n  let wy = w * y2;\n  let wz = w * z2;\n\n  let sx = s[0];\n  let sy = s[1];\n  let sz = s[2];\n\n  let ox = o[0];\n  let oy = o[1];\n  let oz = o[2];\n\n  let out0 = (1 - (yy + zz)) * sx;\n  let out1 = (xy + wz) * sx;\n  let out2 = (xz - wy) * sx;\n  let out4 = (xy - wz) * sy;\n  let out5 = (1 - (xx + zz)) * sy;\n  let out6 = (yz + wx) * sy;\n  let out8 = (xz + wy) * sz;\n  let out9 = (yz - wx) * sz;\n  let out10 = (1 - (xx + yy)) * sz;\n\n  out[0] = out0;\n  out[1] = out1;\n  out[2] = out2;\n  out[3] = 0;\n  out[4] = out4;\n  out[5] = out5;\n  out[6] = out6;\n  out[7] = 0;\n  out[8] = out8;\n  out[9] = out9;\n  out[10] = out10;\n  out[11] = 0;\n  out[12] = v[0] + ox - (out0 * ox + out4 * oy + out8 * oz);\n  out[13] = v[1] + oy - (out1 * ox + out5 * oy + out9 * oz);\n  out[14] = v[2] + oz - (out2 * ox + out6 * oy + out10 * oz);\n  out[15] = 1;\n\n  return out;\n}\n\n/**\n * Calculates a 4x4 matrix from the given quaternion\n *\n * @param {mat4} out mat4 receiving operation result\n * @param {quat} q Quaternion to create matrix from\n *\n * @returns {mat4} out\n */\nexport function fromQuat(out, q) {\n  let x = q[0], y = q[1], z = q[2], w = q[3];\n  let x2 = x + x;\n  let y2 = y + y;\n  let z2 = z + z;\n\n  let xx = x * x2;\n  let yx = y * x2;\n  let yy = y * y2;\n  let zx = z * x2;\n  let zy = z * y2;\n  let zz = z * z2;\n  let wx = w * x2;\n  let wy = w * y2;\n  let wz = w * z2;\n\n  out[0] = 1 - yy - zz;\n  out[1] = yx + wz;\n  out[2] = zx - wy;\n  out[3] = 0;\n\n  out[4] = yx - wz;\n  out[5] = 1 - xx - zz;\n  out[6] = zy + wx;\n  out[7] = 0;\n\n  out[8] = zx + wy;\n  out[9] = zy - wx;\n  out[10] = 1 - xx - yy;\n  out[11] = 0;\n\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = 0;\n  out[15] = 1;\n\n  return out;\n}\n\n/**\n * Generates a frustum matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Number} left Left bound of the frustum\n * @param {Number} right Right bound of the frustum\n * @param {Number} bottom Bottom bound of the frustum\n * @param {Number} top Top bound of the frustum\n * @param {Number} near Near bound of the frustum\n * @param {Number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function frustum(out, left, right, bottom, top, near, far) {\n  let rl = 1 / (right - left);\n  let tb = 1 / (top - bottom);\n  let nf = 1 / (near - far);\n  out[0] = (near * 2) * rl;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = (near * 2) * tb;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = (right + left) * rl;\n  out[9] = (top + bottom) * tb;\n  out[10] = (far + near) * nf;\n  out[11] = -1;\n  out[12] = 0;\n  out[13] = 0;\n  out[14] = (far * near * 2) * nf;\n  out[15] = 0;\n  return out;\n}\n\n/**\n * Generates a perspective projection matrix with the given bounds.\n * Passing null/undefined/no value for far will generate infinite projection matrix.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} fovy Vertical field of view in radians\n * @param {number} aspect Aspect ratio. typically viewport width/height\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum, can be null or Infinity\n * @returns {mat4} out\n */\nexport function perspective(out, fovy, aspect, near, far) {\n  let f = 1.0 / Math.tan(fovy / 2), nf;\n  out[0] = f / aspect;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = f;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[11] = -1;\n  out[12] = 0;\n  out[13] = 0;\n  out[15] = 0;\n  if (far != null && far !== Infinity) {\n    nf = 1 / (near - far);\n    out[10] = (far + near) * nf;\n    out[14] = (2 * far * near) * nf;\n  } else {\n    out[10] = -1;\n    out[14] = -2 * near;\n  }\n  return out;\n}\n\n/**\n * Generates a perspective projection matrix with the given field of view.\n * This is primarily useful for generating projection matrices to be used\n * with the still experiemental WebVR API.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {Object} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function perspectiveFromFieldOfView(out, fov, near, far) {\n  let upTan = Math.tan(fov.upDegrees * Math.PI/180.0);\n  let downTan = Math.tan(fov.downDegrees * Math.PI/180.0);\n  let leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0);\n  let rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0);\n  let xScale = 2.0 / (leftTan + rightTan);\n  let yScale = 2.0 / (upTan + downTan);\n\n  out[0] = xScale;\n  out[1] = 0.0;\n  out[2] = 0.0;\n  out[3] = 0.0;\n  out[4] = 0.0;\n  out[5] = yScale;\n  out[6] = 0.0;\n  out[7] = 0.0;\n  out[8] = -((leftTan - rightTan) * xScale * 0.5);\n  out[9] = ((upTan - downTan) * yScale * 0.5);\n  out[10] = far / (near - far);\n  out[11] = -1.0;\n  out[12] = 0.0;\n  out[13] = 0.0;\n  out[14] = (far * near) / (near - far);\n  out[15] = 0.0;\n  return out;\n}\n\n/**\n * Generates a orthogonal projection matrix with the given bounds\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {number} left Left bound of the frustum\n * @param {number} right Right bound of the frustum\n * @param {number} bottom Bottom bound of the frustum\n * @param {number} top Top bound of the frustum\n * @param {number} near Near bound of the frustum\n * @param {number} far Far bound of the frustum\n * @returns {mat4} out\n */\nexport function ortho(out, left, right, bottom, top, near, far) {\n  let lr = 1 / (left - right);\n  let bt = 1 / (bottom - top);\n  let nf = 1 / (near - far);\n  out[0] = -2 * lr;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 0;\n  out[4] = 0;\n  out[5] = -2 * bt;\n  out[6] = 0;\n  out[7] = 0;\n  out[8] = 0;\n  out[9] = 0;\n  out[10] = 2 * nf;\n  out[11] = 0;\n  out[12] = (left + right) * lr;\n  out[13] = (top + bottom) * bt;\n  out[14] = (far + near) * nf;\n  out[15] = 1;\n  return out;\n}\n\n/**\n * Generates a look-at matrix with the given eye position, focal point, and up axis.\n * If you want a matrix that actually makes an object look at another object, you should use targetTo instead.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nexport function lookAt(out, eye, center, up) {\n  let x0, x1, x2, y0, y1, y2, z0, z1, z2, len;\n  let eyex = eye[0];\n  let eyey = eye[1];\n  let eyez = eye[2];\n  let upx = up[0];\n  let upy = up[1];\n  let upz = up[2];\n  let centerx = center[0];\n  let centery = center[1];\n  let centerz = center[2];\n\n  if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&\n      Math.abs(eyey - centery) < glMatrix.EPSILON &&\n      Math.abs(eyez - centerz) < glMatrix.EPSILON) {\n    return identity(out);\n  }\n\n  z0 = eyex - centerx;\n  z1 = eyey - centery;\n  z2 = eyez - centerz;\n\n  len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);\n  z0 *= len;\n  z1 *= len;\n  z2 *= len;\n\n  x0 = upy * z2 - upz * z1;\n  x1 = upz * z0 - upx * z2;\n  x2 = upx * z1 - upy * z0;\n  len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);\n  if (!len) {\n    x0 = 0;\n    x1 = 0;\n    x2 = 0;\n  } else {\n    len = 1 / len;\n    x0 *= len;\n    x1 *= len;\n    x2 *= len;\n  }\n\n  y0 = z1 * x2 - z2 * x1;\n  y1 = z2 * x0 - z0 * x2;\n  y2 = z0 * x1 - z1 * x0;\n\n  len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);\n  if (!len) {\n    y0 = 0;\n    y1 = 0;\n    y2 = 0;\n  } else {\n    len = 1 / len;\n    y0 *= len;\n    y1 *= len;\n    y2 *= len;\n  }\n\n  out[0] = x0;\n  out[1] = y0;\n  out[2] = z0;\n  out[3] = 0;\n  out[4] = x1;\n  out[5] = y1;\n  out[6] = z1;\n  out[7] = 0;\n  out[8] = x2;\n  out[9] = y2;\n  out[10] = z2;\n  out[11] = 0;\n  out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);\n  out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);\n  out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);\n  out[15] = 1;\n\n  return out;\n}\n\n/**\n * Generates a matrix that makes something look at something else.\n *\n * @param {mat4} out mat4 frustum matrix will be written into\n * @param {vec3} eye Position of the viewer\n * @param {vec3} center Point the viewer is looking at\n * @param {vec3} up vec3 pointing up\n * @returns {mat4} out\n */\nexport function targetTo(out, eye, target, up) {\n  let eyex = eye[0],\n      eyey = eye[1],\n      eyez = eye[2],\n      upx = up[0],\n      upy = up[1],\n      upz = up[2];\n\n  let z0 = eyex - target[0],\n      z1 = eyey - target[1],\n      z2 = eyez - target[2];\n\n  let len = z0*z0 + z1*z1 + z2*z2;\n  if (len > 0) {\n    len = 1 / Math.sqrt(len);\n    z0 *= len;\n    z1 *= len;\n    z2 *= len;\n  }\n\n  let x0 = upy * z2 - upz * z1,\n      x1 = upz * z0 - upx * z2,\n      x2 = upx * z1 - upy * z0;\n\n  len = x0*x0 + x1*x1 + x2*x2;\n  if (len > 0) {\n    len = 1 / Math.sqrt(len);\n    x0 *= len;\n    x1 *= len;\n    x2 *= len;\n  }\n\n  out[0] = x0;\n  out[1] = x1;\n  out[2] = x2;\n  out[3] = 0;\n  out[4] = z1 * x2 - z2 * x1;\n  out[5] = z2 * x0 - z0 * x2;\n  out[6] = z0 * x1 - z1 * x0;\n  out[7] = 0;\n  out[8] = z0;\n  out[9] = z1;\n  out[10] = z2;\n  out[11] = 0;\n  out[12] = eyex;\n  out[13] = eyey;\n  out[14] = eyez;\n  out[15] = 1;\n  return out;\n};\n\n/**\n * Returns a string representation of a mat4\n *\n * @param {mat4} a matrix to represent as a string\n * @returns {String} string representation of the matrix\n */\nexport function str(a) {\n  return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n          a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +\n          a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' +\n          a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';\n}\n\n/**\n * Returns Frobenius norm of a mat4\n *\n * @param {mat4} a the matrix to calculate Frobenius norm of\n * @returns {Number} Frobenius norm\n */\nexport function frob(a) {\n  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))\n}\n\n/**\n * Adds two mat4's\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  out[4] = a[4] + b[4];\n  out[5] = a[5] + b[5];\n  out[6] = a[6] + b[6];\n  out[7] = a[7] + b[7];\n  out[8] = a[8] + b[8];\n  out[9] = a[9] + b[9];\n  out[10] = a[10] + b[10];\n  out[11] = a[11] + b[11];\n  out[12] = a[12] + b[12];\n  out[13] = a[13] + b[13];\n  out[14] = a[14] + b[14];\n  out[15] = a[15] + b[15];\n  return out;\n}\n\n/**\n * Subtracts matrix b from matrix a\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @returns {mat4} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  out[3] = a[3] - b[3];\n  out[4] = a[4] - b[4];\n  out[5] = a[5] - b[5];\n  out[6] = a[6] - b[6];\n  out[7] = a[7] - b[7];\n  out[8] = a[8] - b[8];\n  out[9] = a[9] - b[9];\n  out[10] = a[10] - b[10];\n  out[11] = a[11] - b[11];\n  out[12] = a[12] - b[12];\n  out[13] = a[13] - b[13];\n  out[14] = a[14] - b[14];\n  out[15] = a[15] - b[15];\n  return out;\n}\n\n/**\n * Multiply each element of the matrix by a scalar.\n *\n * @param {mat4} out the receiving matrix\n * @param {mat4} a the matrix to scale\n * @param {Number} b amount to scale the matrix's elements by\n * @returns {mat4} out\n */\nexport function multiplyScalar(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  out[4] = a[4] * b;\n  out[5] = a[5] * b;\n  out[6] = a[6] * b;\n  out[7] = a[7] * b;\n  out[8] = a[8] * b;\n  out[9] = a[9] * b;\n  out[10] = a[10] * b;\n  out[11] = a[11] * b;\n  out[12] = a[12] * b;\n  out[13] = a[13] * b;\n  out[14] = a[14] * b;\n  out[15] = a[15] * b;\n  return out;\n}\n\n/**\n * Adds two mat4's after multiplying each element of the second operand by a scalar value.\n *\n * @param {mat4} out the receiving vector\n * @param {mat4} a the first operand\n * @param {mat4} b the second operand\n * @param {Number} scale the amount to scale b's elements by before adding\n * @returns {mat4} out\n */\nexport function multiplyScalarAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  out[3] = a[3] + (b[3] * scale);\n  out[4] = a[4] + (b[4] * scale);\n  out[5] = a[5] + (b[5] * scale);\n  out[6] = a[6] + (b[6] * scale);\n  out[7] = a[7] + (b[7] * scale);\n  out[8] = a[8] + (b[8] * scale);\n  out[9] = a[9] + (b[9] * scale);\n  out[10] = a[10] + (b[10] * scale);\n  out[11] = a[11] + (b[11] * scale);\n  out[12] = a[12] + (b[12] * scale);\n  out[13] = a[13] + (b[13] * scale);\n  out[14] = a[14] + (b[14] * scale);\n  out[15] = a[15] + (b[15] * scale);\n  return out;\n}\n\n/**\n * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)\n *\n * @param {mat4} a The first matrix.\n * @param {mat4} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&\n         a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7] &&\n         a[8] === b[8] && a[9] === b[9] && a[10] === b[10] && a[11] === b[11] &&\n         a[12] === b[12] && a[13] === b[13] && a[14] === b[14] && a[15] === b[15];\n}\n\n/**\n * Returns whether or not the matrices have approximately the same elements in the same position.\n *\n * @param {mat4} a The first matrix.\n * @param {mat4} b The second matrix.\n * @returns {Boolean} True if the matrices are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0  = a[0],  a1  = a[1],  a2  = a[2],  a3  = a[3];\n  let a4  = a[4],  a5  = a[5],  a6  = a[6],  a7  = a[7];\n  let a8  = a[8],  a9  = a[9],  a10 = a[10], a11 = a[11];\n  let a12 = a[12], a13 = a[13], a14 = a[14], a15 = a[15];\n\n  let b0  = b[0],  b1  = b[1],  b2  = b[2],  b3  = b[3];\n  let b4  = b[4],  b5  = b[5],  b6  = b[6],  b7  = b[7];\n  let b8  = b[8],  b9  = b[9],  b10 = b[10], b11 = b[11];\n  let b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15];\n\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&\n          Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&\n          Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&\n          Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)) &&\n          Math.abs(a9 - b9) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a9), Math.abs(b9)) &&\n          Math.abs(a10 - b10) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a10), Math.abs(b10)) &&\n          Math.abs(a11 - b11) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a11), Math.abs(b11)) &&\n          Math.abs(a12 - b12) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a12), Math.abs(b12)) &&\n          Math.abs(a13 - b13) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a13), Math.abs(b13)) &&\n          Math.abs(a14 - b14) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a14), Math.abs(b14)) &&\n          Math.abs(a15 - b15) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a15), Math.abs(b15)));\n}\n\n/**\n * Alias for {@link mat4.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link mat4.subtract}\n * @function\n */\nexport const sub = subtract;\n","import * as glMatrix from \"./common.js\"\nimport * as mat3 from \"./mat3.js\"\nimport * as vec3 from \"./vec3.js\"\nimport * as vec4 from \"./vec4.js\"\n\n/**\n * Quaternion\n * @module quat\n */\n\n/**\n * Creates a new identity quat\n *\n * @returns {quat} a new quaternion\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[0] = 0;\n    out[1] = 0;\n    out[2] = 0;\n  }\n  out[3] = 1;\n  return out;\n}\n\n/**\n * Set a quat to the identity quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nexport function identity(out) {\n  out[0] = 0;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  return out;\n}\n\n/**\n * Sets a quat from the given angle and rotation axis,\n * then returns it.\n *\n * @param {quat} out the receiving quaternion\n * @param {vec3} axis the axis around which to rotate\n * @param {Number} rad the angle in radians\n * @returns {quat} out\n **/\nexport function setAxisAngle(out, axis, rad) {\n  rad = rad * 0.5;\n  let s = Math.sin(rad);\n  out[0] = s * axis[0];\n  out[1] = s * axis[1];\n  out[2] = s * axis[2];\n  out[3] = Math.cos(rad);\n  return out;\n}\n\n/**\n * Gets the rotation axis and angle for a given\n *  quaternion. If a quaternion is created with\n *  setAxisAngle, this method will return the same\n *  values as providied in the original parameter list\n *  OR functionally equivalent values.\n * Example: The quaternion formed by axis [0, 0, 1] and\n *  angle -90 is the same as the quaternion formed by\n *  [0, 0, 1] and 270. This method favors the latter.\n * @param  {vec3} out_axis  Vector receiving the axis of rotation\n * @param  {quat} q     Quaternion to be decomposed\n * @return {Number}     Angle, in radians, of the rotation\n */\nexport function getAxisAngle(out_axis, q) {\n  let rad = Math.acos(q[3]) * 2.0;\n  let s = Math.sin(rad / 2.0);\n  if (s > glMatrix.EPSILON) {\n    out_axis[0] = q[0] / s;\n    out_axis[1] = q[1] / s;\n    out_axis[2] = q[2] / s;\n  } else {\n    // If s is zero, return any axis (no rotation - axis does not matter)\n    out_axis[0] = 1;\n    out_axis[1] = 0;\n    out_axis[2] = 0;\n  }\n  return rad;\n}\n\n/**\n * Multiplies two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n */\nexport function multiply(out, a, b) {\n  let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n  let bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n  out[0] = ax * bw + aw * bx + ay * bz - az * by;\n  out[1] = ay * bw + aw * by + az * bx - ax * bz;\n  out[2] = az * bw + aw * bz + ax * by - ay * bx;\n  out[3] = aw * bw - ax * bx - ay * by - az * bz;\n  return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the X axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateX(out, a, rad) {\n  rad *= 0.5;\n\n  let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n  let bx = Math.sin(rad), bw = Math.cos(rad);\n\n  out[0] = ax * bw + aw * bx;\n  out[1] = ay * bw + az * bx;\n  out[2] = az * bw - ay * bx;\n  out[3] = aw * bw - ax * bx;\n  return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the Y axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateY(out, a, rad) {\n  rad *= 0.5;\n\n  let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n  let by = Math.sin(rad), bw = Math.cos(rad);\n\n  out[0] = ax * bw - az * by;\n  out[1] = ay * bw + aw * by;\n  out[2] = az * bw + ax * by;\n  out[3] = aw * bw - ay * by;\n  return out;\n}\n\n/**\n * Rotates a quaternion by the given angle about the Z axis\n *\n * @param {quat} out quat receiving operation result\n * @param {quat} a quat to rotate\n * @param {number} rad angle (in radians) to rotate\n * @returns {quat} out\n */\nexport function rotateZ(out, a, rad) {\n  rad *= 0.5;\n\n  let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n  let bz = Math.sin(rad), bw = Math.cos(rad);\n\n  out[0] = ax * bw + ay * bz;\n  out[1] = ay * bw - ax * bz;\n  out[2] = az * bw + aw * bz;\n  out[3] = aw * bw - az * bz;\n  return out;\n}\n\n/**\n * Calculates the W component of a quat from the X, Y, and Z components.\n * Assumes that quaternion is 1 unit in length.\n * Any existing W component will be ignored.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate W component of\n * @returns {quat} out\n */\nexport function calculateW(out, a) {\n  let x = a[0], y = a[1], z = a[2];\n\n  out[0] = x;\n  out[1] = y;\n  out[2] = z;\n  out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));\n  return out;\n}\n\n/**\n * Performs a spherical linear interpolation between two quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {quat} out\n */\nexport function slerp(out, a, b, t) {\n  // benchmarks:\n  //    http://jsperf.com/quaternion-slerp-implementations\n  let ax = a[0], ay = a[1], az = a[2], aw = a[3];\n  let bx = b[0], by = b[1], bz = b[2], bw = b[3];\n\n  let omega, cosom, sinom, scale0, scale1;\n\n  // calc cosine\n  cosom = ax * bx + ay * by + az * bz + aw * bw;\n  // adjust signs (if necessary)\n  if ( cosom < 0.0 ) {\n    cosom = -cosom;\n    bx = - bx;\n    by = - by;\n    bz = - bz;\n    bw = - bw;\n  }\n  // calculate coefficients\n  if ( (1.0 - cosom) > glMatrix.EPSILON ) {\n    // standard case (slerp)\n    omega  = Math.acos(cosom);\n    sinom  = Math.sin(omega);\n    scale0 = Math.sin((1.0 - t) * omega) / sinom;\n    scale1 = Math.sin(t * omega) / sinom;\n  } else {\n    // \"from\" and \"to\" quaternions are very close\n    //  ... so we can do a linear interpolation\n    scale0 = 1.0 - t;\n    scale1 = t;\n  }\n  // calculate final values\n  out[0] = scale0 * ax + scale1 * bx;\n  out[1] = scale0 * ay + scale1 * by;\n  out[2] = scale0 * az + scale1 * bz;\n  out[3] = scale0 * aw + scale1 * bw;\n\n  return out;\n}\n\n/**\n * Generates a random quaternion\n *\n * @param {quat} out the receiving quaternion\n * @returns {quat} out\n */\nexport function random(out) {\n  // Implementation of http://planning.cs.uiuc.edu/node198.html\n  // TODO: Calling random 3 times is probably not the fastest solution\n  let u1 = glMatrix.RANDOM();\n  let u2 = glMatrix.RANDOM();\n  let u3 = glMatrix.RANDOM();\n\n  let sqrt1MinusU1 = Math.sqrt(1 - u1);\n  let sqrtU1 = Math.sqrt(u1);\n\n  out[0] = sqrt1MinusU1 * Math.sin(2.0 * Math.PI * u2);\n  out[1] = sqrt1MinusU1 * Math.cos(2.0 * Math.PI * u2);\n  out[2] = sqrtU1 * Math.sin(2.0 * Math.PI * u3);\n  out[3] = sqrtU1 * Math.cos(2.0 * Math.PI * u3);\n  return out;\n}\n\n/**\n * Calculates the inverse of a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate inverse of\n * @returns {quat} out\n */\nexport function invert(out, a) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let dot = a0*a0 + a1*a1 + a2*a2 + a3*a3;\n  let invDot = dot ? 1.0/dot : 0;\n\n  // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0\n\n  out[0] = -a0*invDot;\n  out[1] = -a1*invDot;\n  out[2] = -a2*invDot;\n  out[3] = a3*invDot;\n  return out;\n}\n\n/**\n * Calculates the conjugate of a quat\n * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quat to calculate conjugate of\n * @returns {quat} out\n */\nexport function conjugate(out, a) {\n  out[0] = -a[0];\n  out[1] = -a[1];\n  out[2] = -a[2];\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Creates a quaternion from the given 3x3 rotation matrix.\n *\n * NOTE: The resultant quaternion is not normalized, so you should be sure\n * to renormalize the quaternion yourself where necessary.\n *\n * @param {quat} out the receiving quaternion\n * @param {mat3} m rotation matrix\n * @returns {quat} out\n * @function\n */\nexport function fromMat3(out, m) {\n  // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes\n  // article \"Quaternion Calculus and Fast Animation\".\n  let fTrace = m[0] + m[4] + m[8];\n  let fRoot;\n\n  if ( fTrace > 0.0 ) {\n    // |w| > 1/2, may as well choose w > 1/2\n    fRoot = Math.sqrt(fTrace + 1.0);  // 2w\n    out[3] = 0.5 * fRoot;\n    fRoot = 0.5/fRoot;  // 1/(4w)\n    out[0] = (m[5]-m[7])*fRoot;\n    out[1] = (m[6]-m[2])*fRoot;\n    out[2] = (m[1]-m[3])*fRoot;\n  } else {\n    // |w| <= 1/2\n    let i = 0;\n    if ( m[4] > m[0] )\n      i = 1;\n    if ( m[8] > m[i*3+i] )\n      i = 2;\n    let j = (i+1)%3;\n    let k = (i+2)%3;\n\n    fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);\n    out[i] = 0.5 * fRoot;\n    fRoot = 0.5 / fRoot;\n    out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;\n    out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;\n    out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;\n  }\n\n  return out;\n}\n\n/**\n * Creates a quaternion from the given euler angle x, y, z.\n *\n * @param {quat} out the receiving quaternion\n * @param {x} Angle to rotate around X axis in degrees.\n * @param {y} Angle to rotate around Y axis in degrees.\n * @param {z} Angle to rotate around Z axis in degrees.\n * @returns {quat} out\n * @function\n */\nexport function fromEuler(out, x, y, z) {\n    let halfToRad = 0.5 * Math.PI / 180.0;\n    x *= halfToRad;\n    y *= halfToRad;\n    z *= halfToRad;\n\n    let sx = Math.sin(x);\n    let cx = Math.cos(x);\n    let sy = Math.sin(y);\n    let cy = Math.cos(y);\n    let sz = Math.sin(z);\n    let cz = Math.cos(z);\n\n    out[0] = sx * cy * cz - cx * sy * sz;\n    out[1] = cx * sy * cz + sx * cy * sz;\n    out[2] = cx * cy * sz - sx * sy * cz;\n    out[3] = cx * cy * cz + sx * sy * sz;\n\n    return out;\n}\n\n/**\n * Returns a string representation of a quatenion\n *\n * @param {quat} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n  return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat} a quaternion to clone\n * @returns {quat} a new quaternion\n * @function\n */\nexport const clone = vec4.clone;\n\n/**\n * Creates a new quat initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} a new quaternion\n * @function\n */\nexport const fromValues = vec4.fromValues;\n\n/**\n * Copy the values from one quat to another\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the source quaternion\n * @returns {quat} out\n * @function\n */\nexport const copy = vec4.copy;\n\n/**\n * Set the components of a quat to the given values\n *\n * @param {quat} out the receiving quaternion\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {quat} out\n * @function\n */\nexport const set = vec4.set;\n\n/**\n * Adds two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {quat} out\n * @function\n */\nexport const add = vec4.add;\n\n/**\n * Alias for {@link quat.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Scales a quat by a scalar number\n *\n * @param {quat} out the receiving vector\n * @param {quat} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {quat} out\n * @function\n */\nexport const scale = vec4.scale;\n\n/**\n * Calculates the dot product of two quat's\n *\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nexport const dot = vec4.dot;\n\n/**\n * Performs a linear interpolation between two quat's\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {quat} out\n * @function\n */\nexport const lerp = vec4.lerp;\n\n/**\n * Calculates the length of a quat\n *\n * @param {quat} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport const length = vec4.length;\n\n/**\n * Alias for {@link quat.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Calculates the squared length of a quat\n *\n * @param {quat} a vector to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nexport const squaredLength = vec4.squaredLength;\n\n/**\n * Alias for {@link quat.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Normalize a quat\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a quaternion to normalize\n * @returns {quat} out\n * @function\n */\nexport const normalize = vec4.normalize;\n\n/**\n * Returns whether or not the quaternions have exactly the same elements in the same position (when compared with ===)\n *\n * @param {quat} a The first quaternion.\n * @param {quat} b The second quaternion.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport const exactEquals = vec4.exactEquals;\n\n/**\n * Returns whether or not the quaternions have approximately the same elements in the same position.\n *\n * @param {quat} a The first vector.\n * @param {quat} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport const equals = vec4.equals;\n\n/**\n * Sets a quaternion to represent the shortest rotation from one\n * vector to another.\n *\n * Both vectors are assumed to be unit length.\n *\n * @param {quat} out the receiving quaternion.\n * @param {vec3} a the initial vector\n * @param {vec3} b the destination vector\n * @returns {quat} out\n */\nexport const rotationTo = (function() {\n  let tmpvec3 = vec3.create();\n  let xUnitVec3 = vec3.fromValues(1,0,0);\n  let yUnitVec3 = vec3.fromValues(0,1,0);\n\n  return function(out, a, b) {\n    let dot = vec3.dot(a, b);\n    if (dot < -0.999999) {\n      vec3.cross(tmpvec3, xUnitVec3, a);\n      if (vec3.len(tmpvec3) < 0.000001)\n        vec3.cross(tmpvec3, yUnitVec3, a);\n      vec3.normalize(tmpvec3, tmpvec3);\n      setAxisAngle(out, tmpvec3, Math.PI);\n      return out;\n    } else if (dot > 0.999999) {\n      out[0] = 0;\n      out[1] = 0;\n      out[2] = 0;\n      out[3] = 1;\n      return out;\n    } else {\n      vec3.cross(tmpvec3, a, b);\n      out[0] = tmpvec3[0];\n      out[1] = tmpvec3[1];\n      out[2] = tmpvec3[2];\n      out[3] = 1 + dot;\n      return normalize(out, out);\n    }\n  };\n})();\n\n/**\n * Performs a spherical linear interpolation with two control points\n *\n * @param {quat} out the receiving quaternion\n * @param {quat} a the first operand\n * @param {quat} b the second operand\n * @param {quat} c the third operand\n * @param {quat} d the fourth operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {quat} out\n */\nexport const sqlerp = (function () {\n  let temp1 = create();\n  let temp2 = create();\n\n  return function (out, a, b, c, d, t) {\n    slerp(temp1, a, d, t);\n    slerp(temp2, b, c, t);\n    slerp(out, temp1, temp2, 2 * t * (1 - t));\n\n    return out;\n  };\n}());\n\n/**\n * Sets the specified quaternion with values corresponding to the given\n * axes. Each axis is a vec3 and is expected to be unit length and\n * perpendicular to all other specified axes.\n *\n * @param {vec3} view  the vector representing the viewing direction\n * @param {vec3} right the vector representing the local \"right\" direction\n * @param {vec3} up    the vector representing the local \"up\" direction\n * @returns {quat} out\n */\nexport const setAxes = (function() {\n  let matr = mat3.create();\n\n  return function(out, view, right, up) {\n    matr[0] = right[0];\n    matr[3] = right[1];\n    matr[6] = right[2];\n\n    matr[1] = up[0];\n    matr[4] = up[1];\n    matr[7] = up[2];\n\n    matr[2] = -view[0];\n    matr[5] = -view[1];\n    matr[8] = -view[2];\n\n    return normalize(out, fromMat3(out, matr));\n  };\n})();\n","import * as glMatrix from \"./common.js\";\nimport * as quat from \"./quat.js\";\nimport * as mat4 from \"./mat4.js\";\n\n/**\n * Dual Quaternion<br>\n * Format: [real, dual]<br>\n * Quaternion format: XYZW<br>\n * Make sure to have normalized dual quaternions, otherwise the functions may not work as intended.<br>\n * @module quat2\n */\n\n\n/**\n * Creates a new identity dual quat\n *\n * @returns {quat2} a new dual quaternion [real -> rotation, dual -> translation]\n */\nexport function create() {\n  let dq = new glMatrix.ARRAY_TYPE(8);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    dq[0] = 0;\n    dq[1] = 0;\n    dq[2] = 0;\n    dq[4] = 0;\n    dq[5] = 0;\n    dq[6] = 0;\n    dq[7] = 0;\n  }\n  dq[3] = 1;\n  return dq;\n}\n\n/**\n * Creates a new quat initialized with values from an existing quaternion\n *\n * @param {quat2} a dual quaternion to clone\n * @returns {quat2} new dual quaternion\n * @function\n */\nexport function clone(a) {\n  let dq = new glMatrix.ARRAY_TYPE(8);\n  dq[0] = a[0];\n  dq[1] = a[1];\n  dq[2] = a[2];\n  dq[3] = a[3];\n  dq[4] = a[4];\n  dq[5] = a[5];\n  dq[6] = a[6];\n  dq[7] = a[7];\n  return dq;\n}\n\n/**\n * Creates a new dual quat initialized with the given values\n *\n * @param {Number} x1 X component\n * @param {Number} y1 Y component\n * @param {Number} z1 Z component\n * @param {Number} w1 W component\n * @param {Number} x2 X component\n * @param {Number} y2 Y component\n * @param {Number} z2 Z component\n * @param {Number} w2 W component\n * @returns {quat2} new dual quaternion\n * @function\n */\nexport function fromValues(x1, y1, z1, w1, x2, y2, z2, w2) {\n  let dq = new glMatrix.ARRAY_TYPE(8);\n  dq[0] = x1;\n  dq[1] = y1;\n  dq[2] = z1;\n  dq[3] = w1;\n  dq[4] = x2;\n  dq[5] = y2;\n  dq[6] = z2;\n  dq[7] = w2;\n  return dq;\n}\n\n/**\n * Creates a new dual quat from the given values (quat and translation)\n *\n * @param {Number} x1 X component\n * @param {Number} y1 Y component\n * @param {Number} z1 Z component\n * @param {Number} w1 W component\n * @param {Number} x2 X component (translation)\n * @param {Number} y2 Y component (translation)\n * @param {Number} z2 Z component (translation)\n * @returns {quat2} new dual quaternion\n * @function\n */\nexport function fromRotationTranslationValues(x1, y1, z1, w1, x2, y2, z2) {\n  let dq = new glMatrix.ARRAY_TYPE(8);\n  dq[0] = x1;\n  dq[1] = y1;\n  dq[2] = z1;\n  dq[3] = w1;\n  let ax = x2 * 0.5,\n    ay = y2 * 0.5,\n    az = z2 * 0.5;\n  dq[4] = ax * w1 + ay * z1 - az * y1;\n  dq[5] = ay * w1 + az * x1 - ax * z1;\n  dq[6] = az * w1 + ax * y1 - ay * x1;\n  dq[7] = -ax * x1 - ay * y1 - az * z1;\n  return dq;\n}\n\n/**\n * Creates a dual quat from a quaternion and a translation\n *\n * @param {quat2} dual quaternion receiving operation result\n * @param {quat} q quaternion\n * @param {vec3} t tranlation vector\n * @returns {quat2} dual quaternion receiving operation result\n * @function\n */\nexport function fromRotationTranslation(out, q, t) {\n  let ax = t[0] * 0.5,\n    ay = t[1] * 0.5,\n    az = t[2] * 0.5,\n    bx = q[0],\n    by = q[1],\n    bz = q[2],\n    bw = q[3];\n  out[0] = bx;\n  out[1] = by;\n  out[2] = bz;\n  out[3] = bw;\n  out[4] = ax * bw + ay * bz - az * by;\n  out[5] = ay * bw + az * bx - ax * bz;\n  out[6] = az * bw + ax * by - ay * bx;\n  out[7] = -ax * bx - ay * by - az * bz;\n  return out;\n}\n\n/**\n * Creates a dual quat from a translation\n *\n * @param {quat2} dual quaternion receiving operation result\n * @param {vec3} t translation vector\n * @returns {quat2} dual quaternion receiving operation result\n * @function\n */\nexport function fromTranslation(out, t) {\n  out[0] = 0;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  out[4] = t[0] * 0.5;\n  out[5] = t[1] * 0.5;\n  out[6] = t[2] * 0.5;\n  out[7] = 0;\n  return out;\n}\n\n/**\n * Creates a dual quat from a quaternion\n *\n * @param {quat2} dual quaternion receiving operation result\n * @param {quat} q the quaternion\n * @returns {quat2} dual quaternion receiving operation result\n * @function\n */\nexport function fromRotation(out, q) {\n  out[0] = q[0];\n  out[1] = q[1];\n  out[2] = q[2];\n  out[3] = q[3];\n  out[4] = 0;\n  out[5] = 0;\n  out[6] = 0;\n  out[7] = 0;\n  return out;\n}\n\n/**\n * Creates a new dual quat from a matrix (4x4)\n *\n * @param {quat2} out the dual quaternion\n * @param {mat4} a the matrix\n * @returns {quat2} dual quat receiving operation result\n * @function\n */\nexport function fromMat4(out, a) {\n  //TODO Optimize this\n  let outer = quat.create();\n  mat4.getRotation(outer, a);\n  let t = new glMatrix.ARRAY_TYPE(3);\n  mat4.getTranslation(t, a);\n  fromRotationTranslation(out, outer, t);\n  return out;\n}\n\n/**\n * Copy the values from one dual quat to another\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the source dual quaternion\n * @returns {quat2} out\n * @function\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  out[4] = a[4];\n  out[5] = a[5];\n  out[6] = a[6];\n  out[7] = a[7];\n  return out;\n}\n\n/**\n * Set a dual quat to the identity dual quaternion\n *\n * @param {quat2} out the receiving quaternion\n * @returns {quat2} out\n */\nexport function identity(out) {\n  out[0] = 0;\n  out[1] = 0;\n  out[2] = 0;\n  out[3] = 1;\n  out[4] = 0;\n  out[5] = 0;\n  out[6] = 0;\n  out[7] = 0;\n  return out;\n}\n\n/**\n * Set the components of a dual quat to the given values\n *\n * @param {quat2} out the receiving quaternion\n * @param {Number} x1 X component\n * @param {Number} y1 Y component\n * @param {Number} z1 Z component\n * @param {Number} w1 W component\n * @param {Number} x2 X component\n * @param {Number} y2 Y component\n * @param {Number} z2 Z component\n * @param {Number} w2 W component\n * @returns {quat2} out\n * @function\n */\nexport function set(out, x1, y1, z1, w1, x2, y2, z2, w2) {\n  out[0] = x1;\n  out[1] = y1;\n  out[2] = z1;\n  out[3] = w1;\n\n  out[4] = x2;\n  out[5] = y2;\n  out[6] = z2;\n  out[7] = w2;\n  return out;\n}\n\n/**\n * Gets the real part of a dual quat\n * @param  {quat} out real part\n * @param  {quat2} a Dual Quaternion\n * @return {quat} real part\n */\nexport const getReal = quat.copy;\n\n/**\n * Gets the dual part of a dual quat\n * @param  {quat} out dual part\n * @param  {quat2} a Dual Quaternion\n * @return {quat} dual part\n */\nexport function getDual(out, a) {\n  out[0] = a[4];\n  out[1] = a[5];\n  out[2] = a[6];\n  out[3] = a[7];\n  return out;\n}\n\n/**\n * Set the real component of a dual quat to the given quaternion\n *\n * @param {quat2} out the receiving quaternion\n * @param {quat} q a quaternion representing the real part\n * @returns {quat2} out\n * @function\n */\nexport const setReal = quat.copy;\n\n/**\n * Set the dual component of a dual quat to the given quaternion\n *\n * @param {quat2} out the receiving quaternion\n * @param {quat} q a quaternion representing the dual part\n * @returns {quat2} out\n * @function\n */\nexport function setDual(out, q) {\n  out[4] = q[0];\n  out[5] = q[1];\n  out[6] = q[2];\n  out[7] = q[3];\n  return out;\n}\n\n/**\n * Gets the translation of a normalized dual quat\n * @param  {vec3} out translation\n * @param  {quat2} a Dual Quaternion to be decomposed\n * @return {vec3} translation\n */\nexport function getTranslation(out, a) {\n  let ax = a[4],\n    ay = a[5],\n    az = a[6],\n    aw = a[7],\n    bx = -a[0],\n    by = -a[1],\n    bz = -a[2],\n    bw = a[3];\n  out[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;\n  out[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;\n  out[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;\n  return out;\n}\n\n/**\n * Translates a dual quat by the given vector\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to translate\n * @param {vec3} v vector to translate by\n * @returns {quat2} out\n */\nexport function translate(out, a, v) {\n  let ax1 = a[0],\n    ay1 = a[1],\n    az1 = a[2],\n    aw1 = a[3],\n    bx1 = v[0] * 0.5,\n    by1 = v[1] * 0.5,\n    bz1 = v[2] * 0.5,\n    ax2 = a[4],\n    ay2 = a[5],\n    az2 = a[6],\n    aw2 = a[7];\n  out[0] = ax1;\n  out[1] = ay1;\n  out[2] = az1;\n  out[3] = aw1;\n  out[4] = aw1 * bx1 + ay1 * bz1 - az1 * by1 + ax2;\n  out[5] = aw1 * by1 + az1 * bx1 - ax1 * bz1 + ay2;\n  out[6] = aw1 * bz1 + ax1 * by1 - ay1 * bx1 + az2;\n  out[7] = -ax1 * bx1 - ay1 * by1 - az1 * bz1 + aw2;\n  return out;\n}\n\n/**\n * Rotates a dual quat around the X axis\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to rotate\n * @param {number} rad how far should the rotation be\n * @returns {quat2} out\n */\nexport function rotateX(out, a, rad) {\n  let bx = -a[0],\n    by = -a[1],\n    bz = -a[2],\n    bw = a[3],\n    ax = a[4],\n    ay = a[5],\n    az = a[6],\n    aw = a[7],\n    ax1 = ax * bw + aw * bx + ay * bz - az * by,\n    ay1 = ay * bw + aw * by + az * bx - ax * bz,\n    az1 = az * bw + aw * bz + ax * by - ay * bx,\n    aw1 = aw * bw - ax * bx - ay * by - az * bz;\n  quat.rotateX(out, a, rad);\n  bx = out[0];\n  by = out[1];\n  bz = out[2];\n  bw = out[3];\n  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;\n  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;\n  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;\n  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;\n  return out;\n}\n\n/**\n * Rotates a dual quat around the Y axis\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to rotate\n * @param {number} rad how far should the rotation be\n * @returns {quat2} out\n */\nexport function rotateY(out, a, rad) {\n  let bx = -a[0],\n    by = -a[1],\n    bz = -a[2],\n    bw = a[3],\n    ax = a[4],\n    ay = a[5],\n    az = a[6],\n    aw = a[7],\n    ax1 = ax * bw + aw * bx + ay * bz - az * by,\n    ay1 = ay * bw + aw * by + az * bx - ax * bz,\n    az1 = az * bw + aw * bz + ax * by - ay * bx,\n    aw1 = aw * bw - ax * bx - ay * by - az * bz;\n  quat.rotateY(out, a, rad);\n  bx = out[0];\n  by = out[1];\n  bz = out[2];\n  bw = out[3];\n  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;\n  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;\n  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;\n  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;\n  return out;\n}\n\n/**\n * Rotates a dual quat around the Z axis\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to rotate\n * @param {number} rad how far should the rotation be\n * @returns {quat2} out\n */\nexport function rotateZ(out, a, rad) {\n  let bx = -a[0],\n    by = -a[1],\n    bz = -a[2],\n    bw = a[3],\n    ax = a[4],\n    ay = a[5],\n    az = a[6],\n    aw = a[7],\n    ax1 = ax * bw + aw * bx + ay * bz - az * by,\n    ay1 = ay * bw + aw * by + az * bx - ax * bz,\n    az1 = az * bw + aw * bz + ax * by - ay * bx,\n    aw1 = aw * bw - ax * bx - ay * by - az * bz;\n  quat.rotateZ(out, a, rad);\n  bx = out[0];\n  by = out[1];\n  bz = out[2];\n  bw = out[3];\n  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;\n  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;\n  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;\n  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;\n  return out;\n}\n\n/**\n * Rotates a dual quat by a given quaternion (a * q)\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to rotate\n * @param {quat} q quaternion to rotate by\n * @returns {quat2} out\n */\nexport function rotateByQuatAppend(out, a, q) {\n  let qx = q[0],\n    qy = q[1],\n    qz = q[2],\n    qw = q[3],\n    ax = a[0],\n    ay = a[1],\n    az = a[2],\n    aw = a[3];\n\n  out[0] = ax * qw + aw * qx + ay * qz - az * qy;\n  out[1] = ay * qw + aw * qy + az * qx - ax * qz;\n  out[2] = az * qw + aw * qz + ax * qy - ay * qx;\n  out[3] = aw * qw - ax * qx - ay * qy - az * qz;\n  ax = a[4];\n  ay = a[5];\n  az = a[6];\n  aw = a[7];\n  out[4] = ax * qw + aw * qx + ay * qz - az * qy;\n  out[5] = ay * qw + aw * qy + az * qx - ax * qz;\n  out[6] = az * qw + aw * qz + ax * qy - ay * qx;\n  out[7] = aw * qw - ax * qx - ay * qy - az * qz;\n  return out;\n}\n\n/**\n * Rotates a dual quat by a given quaternion (q * a)\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat} q quaternion to rotate by\n * @param {quat2} a the dual quaternion to rotate\n * @returns {quat2} out\n */\nexport function rotateByQuatPrepend(out, q, a) {\n  let qx = q[0],\n    qy = q[1],\n    qz = q[2],\n    qw = q[3],\n    bx = a[0],\n    by = a[1],\n    bz = a[2],\n    bw = a[3];\n\n  out[0] = qx * bw + qw * bx + qy * bz - qz * by;\n  out[1] = qy * bw + qw * by + qz * bx - qx * bz;\n  out[2] = qz * bw + qw * bz + qx * by - qy * bx;\n  out[3] = qw * bw - qx * bx - qy * by - qz * bz;\n  bx = a[4];\n  by = a[5];\n  bz = a[6];\n  bw = a[7];\n  out[4] = qx * bw + qw * bx + qy * bz - qz * by;\n  out[5] = qy * bw + qw * by + qz * bx - qx * bz;\n  out[6] = qz * bw + qw * bz + qx * by - qy * bx;\n  out[7] = qw * bw - qx * bx - qy * by - qz * bz;\n  return out;\n}\n\n/**\n * Rotates a dual quat around a given axis. Does the normalisation automatically\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the dual quaternion to rotate\n * @param {vec3} axis the axis to rotate around\n * @param {Number} rad how far the rotation should be\n * @returns {quat2} out\n */\nexport function rotateAroundAxis(out, a, axis, rad) {\n  //Special case for rad = 0\n  if (Math.abs(rad) < glMatrix.EPSILON) {\n    return copy(out, a);\n  }\n  let axisLength = Math.sqrt(axis[0] * axis[0] + axis[1] * axis[1] + axis[2] * axis[2]);\n\n  rad = rad * 0.5;\n  let s = Math.sin(rad);\n  let bx = s * axis[0] / axisLength;\n  let by = s * axis[1] / axisLength;\n  let bz = s * axis[2] / axisLength;\n  let bw = Math.cos(rad);\n\n  let ax1 = a[0],\n    ay1 = a[1],\n    az1 = a[2],\n    aw1 = a[3];\n  out[0] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;\n  out[1] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;\n  out[2] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;\n  out[3] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;\n\n  let ax = a[4],\n    ay = a[5],\n    az = a[6],\n    aw = a[7];\n  out[4] = ax * bw + aw * bx + ay * bz - az * by;\n  out[5] = ay * bw + aw * by + az * bx - ax * bz;\n  out[6] = az * bw + aw * bz + ax * by - ay * bx;\n  out[7] = aw * bw - ax * bx - ay * by - az * bz;\n\n  return out;\n}\n\n/**\n * Adds two dual quat's\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the first operand\n * @param {quat2} b the second operand\n * @returns {quat2} out\n * @function\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  out[4] = a[4] + b[4];\n  out[5] = a[5] + b[5];\n  out[6] = a[6] + b[6];\n  out[7] = a[7] + b[7];\n  return out;\n}\n\n/**\n * Multiplies two dual quat's\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a the first operand\n * @param {quat2} b the second operand\n * @returns {quat2} out\n */\nexport function multiply(out, a, b) {\n  let ax0 = a[0],\n    ay0 = a[1],\n    az0 = a[2],\n    aw0 = a[3],\n    bx1 = b[4],\n    by1 = b[5],\n    bz1 = b[6],\n    bw1 = b[7],\n    ax1 = a[4],\n    ay1 = a[5],\n    az1 = a[6],\n    aw1 = a[7],\n    bx0 = b[0],\n    by0 = b[1],\n    bz0 = b[2],\n    bw0 = b[3];\n  out[0] = ax0 * bw0 + aw0 * bx0 + ay0 * bz0 - az0 * by0;\n  out[1] = ay0 * bw0 + aw0 * by0 + az0 * bx0 - ax0 * bz0;\n  out[2] = az0 * bw0 + aw0 * bz0 + ax0 * by0 - ay0 * bx0;\n  out[3] = aw0 * bw0 - ax0 * bx0 - ay0 * by0 - az0 * bz0;\n  out[4] = ax0 * bw1 + aw0 * bx1 + ay0 * bz1 - az0 * by1 + ax1 * bw0 + aw1 * bx0 + ay1 * bz0 - az1 * by0;\n  out[5] = ay0 * bw1 + aw0 * by1 + az0 * bx1 - ax0 * bz1 + ay1 * bw0 + aw1 * by0 + az1 * bx0 - ax1 * bz0;\n  out[6] = az0 * bw1 + aw0 * bz1 + ax0 * by1 - ay0 * bx1 + az1 * bw0 + aw1 * bz0 + ax1 * by0 - ay1 * bx0;\n  out[7] = aw0 * bw1 - ax0 * bx1 - ay0 * by1 - az0 * bz1 + aw1 * bw0 - ax1 * bx0 - ay1 * by0 - az1 * bz0;\n  return out;\n}\n\n/**\n * Alias for {@link quat2.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Scales a dual quat by a scalar number\n *\n * @param {quat2} out the receiving dual quat\n * @param {quat2} a the dual quat to scale\n * @param {Number} b amount to scale the dual quat by\n * @returns {quat2} out\n * @function\n */\nexport function scale(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  out[4] = a[4] * b;\n  out[5] = a[5] * b;\n  out[6] = a[6] * b;\n  out[7] = a[7] * b;\n  return out;\n}\n\n/**\n * Calculates the dot product of two dual quat's (The dot product of the real parts)\n *\n * @param {quat2} a the first operand\n * @param {quat2} b the second operand\n * @returns {Number} dot product of a and b\n * @function\n */\nexport const dot = quat.dot;\n\n/**\n * Performs a linear interpolation between two dual quats's\n * NOTE: The resulting dual quaternions won't always be normalized (The error is most noticeable when t = 0.5)\n *\n * @param {quat2} out the receiving dual quat\n * @param {quat2} a the first operand\n * @param {quat2} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {quat2} out\n */\nexport function lerp(out, a, b, t) {\n  let mt = 1 - t;\n  if (dot(a, b) < 0) t = -t;\n\n  out[0] = a[0] * mt + b[0] * t;\n  out[1] = a[1] * mt + b[1] * t;\n  out[2] = a[2] * mt + b[2] * t;\n  out[3] = a[3] * mt + b[3] * t;\n  out[4] = a[4] * mt + b[4] * t;\n  out[5] = a[5] * mt + b[5] * t;\n  out[6] = a[6] * mt + b[6] * t;\n  out[7] = a[7] * mt + b[7] * t;\n\n  return out;\n}\n\n/**\n * Calculates the inverse of a dual quat. If they are normalized, conjugate is cheaper\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a dual quat to calculate inverse of\n * @returns {quat2} out\n */\nexport function invert(out, a) {\n  let sqlen = squaredLength(a);\n  out[0] = -a[0] / sqlen;\n  out[1] = -a[1] / sqlen;\n  out[2] = -a[2] / sqlen;\n  out[3] = a[3] / sqlen;\n  out[4] = -a[4] / sqlen;\n  out[5] = -a[5] / sqlen;\n  out[6] = -a[6] / sqlen;\n  out[7] = a[7] / sqlen;\n  return out;\n}\n\n/**\n * Calculates the conjugate of a dual quat\n * If the dual quaternion is normalized, this function is faster than quat2.inverse and produces the same result.\n *\n * @param {quat2} out the receiving quaternion\n * @param {quat2} a quat to calculate conjugate of\n * @returns {quat2} out\n */\nexport function conjugate(out, a) {\n  out[0] = -a[0];\n  out[1] = -a[1];\n  out[2] = -a[2];\n  out[3] = a[3];\n  out[4] = -a[4];\n  out[5] = -a[5];\n  out[6] = -a[6];\n  out[7] = a[7];\n  return out;\n}\n\n/**\n * Calculates the length of a dual quat\n *\n * @param {quat2} a dual quat to calculate length of\n * @returns {Number} length of a\n * @function\n */\nexport const length = quat.length;\n\n/**\n * Alias for {@link quat2.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Calculates the squared length of a dual quat\n *\n * @param {quat2} a dual quat to calculate squared length of\n * @returns {Number} squared length of a\n * @function\n */\nexport const squaredLength = quat.squaredLength;\n\n/**\n * Alias for {@link quat2.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Normalize a dual quat\n *\n * @param {quat2} out the receiving dual quaternion\n * @param {quat2} a dual quaternion to normalize\n * @returns {quat2} out\n * @function\n */\nexport function normalize(out, a) {\n  let magnitude = squaredLength(a);\n  if (magnitude > 0) {\n    magnitude = Math.sqrt(magnitude);\n\n    let a0 = a[0] / magnitude;\n    let a1 = a[1] / magnitude;\n    let a2 = a[2] / magnitude;\n    let a3 = a[3] / magnitude;\n\n    let b0 = a[4];\n    let b1 = a[5];\n    let b2 = a[6];\n    let b3 = a[7];\n\n    let a_dot_b = (a0 * b0) + (a1 * b1) + (a2 * b2) + (a3 * b3);\n\n    out[0] = a0;\n    out[1] = a1;\n    out[2] = a2;\n    out[3] = a3;\n\n    out[4] = (b0 - (a0 * a_dot_b)) / magnitude;\n    out[5] = (b1 - (a1 * a_dot_b)) / magnitude;\n    out[6] = (b2 - (a2 * a_dot_b)) / magnitude;\n    out[7] = (b3 - (a3 * a_dot_b)) / magnitude;\n  }\n  return out;\n}\n\n/**\n * Returns a string representation of a dual quatenion\n *\n * @param {quat2} a dual quaternion to represent as a string\n * @returns {String} string representation of the dual quat\n */\nexport function str(a) {\n  return 'quat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +\n    a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ')';\n}\n\n/**\n * Returns whether or not the dual quaternions have exactly the same elements in the same position (when compared with ===)\n *\n * @param {quat2} a the first dual quaternion.\n * @param {quat2} b the second dual quaternion.\n * @returns {Boolean} true if the dual quaternions are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&\n    a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7];\n}\n\n/**\n * Returns whether or not the dual quaternions have approximately the same elements in the same position.\n *\n * @param {quat2} a the first dual quat.\n * @param {quat2} b the second dual quat.\n * @returns {Boolean} true if the dual quats are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0],\n    a1 = a[1],\n    a2 = a[2],\n    a3 = a[3],\n    a4 = a[4],\n    a5 = a[5],\n    a6 = a[6],\n    a7 = a[7];\n  let b0 = b[0],\n    b1 = b[1],\n    b2 = b[2],\n    b3 = b[3],\n    b4 = b[4],\n    b5 = b[5],\n    b6 = b[6],\n    b7 = b[7];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n    Math.abs(a1 - b1) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n    Math.abs(a2 - b2) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n    Math.abs(a3 - b3) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&\n    Math.abs(a4 - b4) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&\n    Math.abs(a5 - b5) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&\n    Math.abs(a6 - b6) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&\n    Math.abs(a7 - b7) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a7), Math.abs(b7)));\n}\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 2 Dimensional Vector\n * @module vec2\n */\n\n/**\n * Creates a new, empty vec2\n *\n * @returns {vec2} a new 2D vector\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(2);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[0] = 0;\n    out[1] = 0;\n  }\n  return out;\n}\n\n/**\n * Creates a new vec2 initialized with values from an existing vector\n *\n * @param {vec2} a vector to clone\n * @returns {vec2} a new 2D vector\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(2);\n  out[0] = a[0];\n  out[1] = a[1];\n  return out;\n}\n\n/**\n * Creates a new vec2 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} a new 2D vector\n */\nexport function fromValues(x, y) {\n  let out = new glMatrix.ARRAY_TYPE(2);\n  out[0] = x;\n  out[1] = y;\n  return out;\n}\n\n/**\n * Copy the values from one vec2 to another\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the source vector\n * @returns {vec2} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  return out;\n}\n\n/**\n * Set the components of a vec2 to the given values\n *\n * @param {vec2} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @returns {vec2} out\n */\nexport function set(out, x, y) {\n  out[0] = x;\n  out[1] = y;\n  return out;\n}\n\n/**\n * Adds two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  return out;\n}\n\n/**\n * Multiplies two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function multiply(out, a, b) {\n  out[0] = a[0] * b[0];\n  out[1] = a[1] * b[1];\n  return out;\n}\n\n/**\n * Divides two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function divide(out, a, b) {\n  out[0] = a[0] / b[0];\n  out[1] = a[1] / b[1];\n  return out;\n}\n\n/**\n * Math.ceil the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to ceil\n * @returns {vec2} out\n */\nexport function ceil(out, a) {\n  out[0] = Math.ceil(a[0]);\n  out[1] = Math.ceil(a[1]);\n  return out;\n}\n\n/**\n * Math.floor the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to floor\n * @returns {vec2} out\n */\nexport function floor(out, a) {\n  out[0] = Math.floor(a[0]);\n  out[1] = Math.floor(a[1]);\n  return out;\n}\n\n/**\n * Returns the minimum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function min(out, a, b) {\n  out[0] = Math.min(a[0], b[0]);\n  out[1] = Math.min(a[1], b[1]);\n  return out;\n}\n\n/**\n * Returns the maximum of two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec2} out\n */\nexport function max(out, a, b) {\n  out[0] = Math.max(a[0], b[0]);\n  out[1] = Math.max(a[1], b[1]);\n  return out;\n}\n\n/**\n * Math.round the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to round\n * @returns {vec2} out\n */\nexport function round (out, a) {\n  out[0] = Math.round(a[0]);\n  out[1] = Math.round(a[1]);\n  return out;\n}\n\n/**\n * Scales a vec2 by a scalar number\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec2} out\n */\nexport function scale(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  return out;\n}\n\n/**\n * Adds two vec2's after scaling the second operand by a scalar value\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec2} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  return out;\n}\n\n/**\n * Calculates the euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n  var x = b[0] - a[0],\n    y = b[1] - a[1];\n  return Math.sqrt(x*x + y*y);\n}\n\n/**\n * Calculates the squared euclidian distance between two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n  var x = b[0] - a[0],\n    y = b[1] - a[1];\n  return x*x + y*y;\n}\n\n/**\n * Calculates the length of a vec2\n *\n * @param {vec2} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n  var x = a[0],\n    y = a[1];\n  return Math.sqrt(x*x + y*y);\n}\n\n/**\n * Calculates the squared length of a vec2\n *\n * @param {vec2} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength (a) {\n  var x = a[0],\n    y = a[1];\n  return x*x + y*y;\n}\n\n/**\n * Negates the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to negate\n * @returns {vec2} out\n */\nexport function negate(out, a) {\n  out[0] = -a[0];\n  out[1] = -a[1];\n  return out;\n}\n\n/**\n * Returns the inverse of the components of a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to invert\n * @returns {vec2} out\n */\nexport function inverse(out, a) {\n  out[0] = 1.0 / a[0];\n  out[1] = 1.0 / a[1];\n  return out;\n}\n\n/**\n * Normalize a vec2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a vector to normalize\n * @returns {vec2} out\n */\nexport function normalize(out, a) {\n  var x = a[0],\n    y = a[1];\n  var len = x*x + y*y;\n  if (len > 0) {\n    //TODO: evaluate use of glm_invsqrt here?\n    len = 1 / Math.sqrt(len);\n    out[0] = a[0] * len;\n    out[1] = a[1] * len;\n  }\n  return out;\n}\n\n/**\n * Calculates the dot product of two vec2's\n *\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n  return a[0] * b[0] + a[1] * b[1];\n}\n\n/**\n * Computes the cross product of two vec2's\n * Note that the cross product must by definition produce a 3D vector\n *\n * @param {vec3} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @returns {vec3} out\n */\nexport function cross(out, a, b) {\n  var z = a[0] * b[1] - a[1] * b[0];\n  out[0] = out[1] = 0;\n  out[2] = z;\n  return out;\n}\n\n/**\n * Performs a linear interpolation between two vec2's\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the first operand\n * @param {vec2} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {vec2} out\n */\nexport function lerp(out, a, b, t) {\n  var ax = a[0],\n    ay = a[1];\n  out[0] = ax + t * (b[0] - ax);\n  out[1] = ay + t * (b[1] - ay);\n  return out;\n}\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec2} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec2} out\n */\nexport function random(out, scale) {\n  scale = scale || 1.0;\n  var r = glMatrix.RANDOM() * 2.0 * Math.PI;\n  out[0] = Math.cos(r) * scale;\n  out[1] = Math.sin(r) * scale;\n  return out;\n}\n\n/**\n * Transforms the vec2 with a mat2\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat2(out, a, m) {\n  var x = a[0],\n    y = a[1];\n  out[0] = m[0] * x + m[2] * y;\n  out[1] = m[1] * x + m[3] * y;\n  return out;\n}\n\n/**\n * Transforms the vec2 with a mat2d\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat2d} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat2d(out, a, m) {\n  var x = a[0],\n    y = a[1];\n  out[0] = m[0] * x + m[2] * y + m[4];\n  out[1] = m[1] * x + m[3] * y + m[5];\n  return out;\n}\n\n/**\n * Transforms the vec2 with a mat3\n * 3rd vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat3} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat3(out, a, m) {\n  var x = a[0],\n    y = a[1];\n  out[0] = m[0] * x + m[3] * y + m[6];\n  out[1] = m[1] * x + m[4] * y + m[7];\n  return out;\n}\n\n/**\n * Transforms the vec2 with a mat4\n * 3rd vector component is implicitly '0'\n * 4th vector component is implicitly '1'\n *\n * @param {vec2} out the receiving vector\n * @param {vec2} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec2} out\n */\nexport function transformMat4(out, a, m) {\n  let x = a[0];\n  let y = a[1];\n  out[0] = m[0] * x + m[4] * y + m[12];\n  out[1] = m[1] * x + m[5] * y + m[13];\n  return out;\n}\n\n/**\n * Rotate a 2D vector\n * @param {vec2} out The receiving vec2\n * @param {vec2} a The vec2 point to rotate\n * @param {vec2} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec2} out\n */\nexport function rotate(out, a, b, c) {\n  //Translate point to the origin\n  let p0 = a[0] - b[0],\n  p1 = a[1] - b[1],\n  sinC = Math.sin(c),\n  cosC = Math.cos(c);\n  \n  //perform rotation and translate to correct position\n  out[0] = p0*cosC - p1*sinC + b[0];\n  out[1] = p0*sinC + p1*cosC + b[1];\n\n  return out;\n}\n\n/**\n * Get the angle between two 2D vectors\n * @param {vec2} a The first operand\n * @param {vec2} b The second operand\n * @returns {Number} The angle in radians\n */\nexport function angle(a, b) {\n  let x1 = a[0],\n    y1 = a[1],\n    x2 = b[0],\n    y2 = b[1];\n  \n  let len1 = x1*x1 + y1*y1;\n  if (len1 > 0) {\n    //TODO: evaluate use of glm_invsqrt here?\n    len1 = 1 / Math.sqrt(len1);\n  }\n  \n  let len2 = x2*x2 + y2*y2;\n  if (len2 > 0) {\n    //TODO: evaluate use of glm_invsqrt here?\n    len2 = 1 / Math.sqrt(len2);\n  }\n  \n  let cosine = (x1 * x2 + y1 * y2) * len1 * len2;\n  \n  \n  if(cosine > 1.0) {\n    return 0;\n  }\n  else if(cosine < -1.0) {\n    return Math.PI;\n  } else {\n    return Math.acos(cosine);\n  }\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec2} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n  return 'vec2(' + a[0] + ', ' + a[1] + ')';\n}\n\n/**\n * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===)\n *\n * @param {vec2} a The first vector.\n * @param {vec2} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec2} a The first vector.\n * @param {vec2} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1];\n  let b0 = b[0], b1 = b[1];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)));\n}\n\n/**\n * Alias for {@link vec2.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec2.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec2.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec2.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec2.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec2.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec2.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec2s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n  let vec = create();\n\n  return function(a, stride, offset, count, fn, arg) {\n    let i, l;\n    if(!stride) {\n      stride = 2;\n    }\n\n    if(!offset) {\n      offset = 0;\n    }\n\n    if(count) {\n      l = Math.min((count * stride) + offset, a.length);\n    } else {\n      l = a.length;\n    }\n\n    for(i = offset; i < l; i += stride) {\n      vec[0] = a[i]; vec[1] = a[i+1];\n      fn(vec, vec, arg);\n      a[i] = vec[0]; a[i+1] = vec[1];\n    }\n\n    return a;\n  };\n})();\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 3 Dimensional Vector\n * @module vec3\n */\n\n/**\n * Creates a new, empty vec3\n *\n * @returns {vec3} a new 3D vector\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(3);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[0] = 0;\n    out[1] = 0;\n    out[2] = 0;\n  }\n  return out;\n}\n\n/**\n * Creates a new vec3 initialized with values from an existing vector\n *\n * @param {vec3} a vector to clone\n * @returns {vec3} a new 3D vector\n */\nexport function clone(a) {\n  var out = new glMatrix.ARRAY_TYPE(3);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  return out;\n}\n\n/**\n * Calculates the length of a vec3\n *\n * @param {vec3} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  return Math.sqrt(x*x + y*y + z*z);\n}\n\n/**\n * Creates a new vec3 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} a new 3D vector\n */\nexport function fromValues(x, y, z) {\n  let out = new glMatrix.ARRAY_TYPE(3);\n  out[0] = x;\n  out[1] = y;\n  out[2] = z;\n  return out;\n}\n\n/**\n * Copy the values from one vec3 to another\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the source vector\n * @returns {vec3} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  return out;\n}\n\n/**\n * Set the components of a vec3 to the given values\n *\n * @param {vec3} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @returns {vec3} out\n */\nexport function set(out, x, y, z) {\n  out[0] = x;\n  out[1] = y;\n  out[2] = z;\n  return out;\n}\n\n/**\n * Adds two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  return out;\n}\n\n/**\n * Multiplies two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function multiply(out, a, b) {\n  out[0] = a[0] * b[0];\n  out[1] = a[1] * b[1];\n  out[2] = a[2] * b[2];\n  return out;\n}\n\n/**\n * Divides two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function divide(out, a, b) {\n  out[0] = a[0] / b[0];\n  out[1] = a[1] / b[1];\n  out[2] = a[2] / b[2];\n  return out;\n}\n\n/**\n * Math.ceil the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to ceil\n * @returns {vec3} out\n */\nexport function ceil(out, a) {\n  out[0] = Math.ceil(a[0]);\n  out[1] = Math.ceil(a[1]);\n  out[2] = Math.ceil(a[2]);\n  return out;\n}\n\n/**\n * Math.floor the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to floor\n * @returns {vec3} out\n */\nexport function floor(out, a) {\n  out[0] = Math.floor(a[0]);\n  out[1] = Math.floor(a[1]);\n  out[2] = Math.floor(a[2]);\n  return out;\n}\n\n/**\n * Returns the minimum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function min(out, a, b) {\n  out[0] = Math.min(a[0], b[0]);\n  out[1] = Math.min(a[1], b[1]);\n  out[2] = Math.min(a[2], b[2]);\n  return out;\n}\n\n/**\n * Returns the maximum of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function max(out, a, b) {\n  out[0] = Math.max(a[0], b[0]);\n  out[1] = Math.max(a[1], b[1]);\n  out[2] = Math.max(a[2], b[2]);\n  return out;\n}\n\n/**\n * Math.round the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to round\n * @returns {vec3} out\n */\nexport function round(out, a) {\n  out[0] = Math.round(a[0]);\n  out[1] = Math.round(a[1]);\n  out[2] = Math.round(a[2]);\n  return out;\n}\n\n/**\n * Scales a vec3 by a scalar number\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec3} out\n */\nexport function scale(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  return out;\n}\n\n/**\n * Adds two vec3's after scaling the second operand by a scalar value\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec3} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  return out;\n}\n\n/**\n * Calculates the euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n  let x = b[0] - a[0];\n  let y = b[1] - a[1];\n  let z = b[2] - a[2];\n  return Math.sqrt(x*x + y*y + z*z);\n}\n\n/**\n * Calculates the squared euclidian distance between two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n  let x = b[0] - a[0];\n  let y = b[1] - a[1];\n  let z = b[2] - a[2];\n  return x*x + y*y + z*z;\n}\n\n/**\n * Calculates the squared length of a vec3\n *\n * @param {vec3} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength(a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  return x*x + y*y + z*z;\n}\n\n/**\n * Negates the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to negate\n * @returns {vec3} out\n */\nexport function negate(out, a) {\n  out[0] = -a[0];\n  out[1] = -a[1];\n  out[2] = -a[2];\n  return out;\n}\n\n/**\n * Returns the inverse of the components of a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to invert\n * @returns {vec3} out\n */\nexport function inverse(out, a) {\n  out[0] = 1.0 / a[0];\n  out[1] = 1.0 / a[1];\n  out[2] = 1.0 / a[2];\n  return out;\n}\n\n/**\n * Normalize a vec3\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a vector to normalize\n * @returns {vec3} out\n */\nexport function normalize(out, a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  let len = x*x + y*y + z*z;\n  if (len > 0) {\n    //TODO: evaluate use of glm_invsqrt here?\n    len = 1 / Math.sqrt(len);\n    out[0] = a[0] * len;\n    out[1] = a[1] * len;\n    out[2] = a[2] * len;\n  }\n  return out;\n}\n\n/**\n * Calculates the dot product of two vec3's\n *\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];\n}\n\n/**\n * Computes the cross product of two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @returns {vec3} out\n */\nexport function cross(out, a, b) {\n  let ax = a[0], ay = a[1], az = a[2];\n  let bx = b[0], by = b[1], bz = b[2];\n\n  out[0] = ay * bz - az * by;\n  out[1] = az * bx - ax * bz;\n  out[2] = ax * by - ay * bx;\n  return out;\n}\n\n/**\n * Performs a linear interpolation between two vec3's\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {vec3} out\n */\nexport function lerp(out, a, b, t) {\n  let ax = a[0];\n  let ay = a[1];\n  let az = a[2];\n  out[0] = ax + t * (b[0] - ax);\n  out[1] = ay + t * (b[1] - ay);\n  out[2] = az + t * (b[2] - az);\n  return out;\n}\n\n/**\n * Performs a hermite interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {vec3} out\n */\nexport function hermite(out, a, b, c, d, t) {\n  let factorTimes2 = t * t;\n  let factor1 = factorTimes2 * (2 * t - 3) + 1;\n  let factor2 = factorTimes2 * (t - 2) + t;\n  let factor3 = factorTimes2 * (t - 1);\n  let factor4 = factorTimes2 * (3 - 2 * t);\n\n  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\n  return out;\n}\n\n/**\n * Performs a bezier interpolation with two control points\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the first operand\n * @param {vec3} b the second operand\n * @param {vec3} c the third operand\n * @param {vec3} d the fourth operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {vec3} out\n */\nexport function bezier(out, a, b, c, d, t) {\n  let inverseFactor = 1 - t;\n  let inverseFactorTimesTwo = inverseFactor * inverseFactor;\n  let factorTimes2 = t * t;\n  let factor1 = inverseFactorTimesTwo * inverseFactor;\n  let factor2 = 3 * t * inverseFactorTimesTwo;\n  let factor3 = 3 * factorTimes2 * inverseFactor;\n  let factor4 = factorTimes2 * t;\n\n  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;\n  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;\n  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;\n\n  return out;\n}\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec3} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec3} out\n */\nexport function random(out, scale) {\n  scale = scale || 1.0;\n\n  let r = glMatrix.RANDOM() * 2.0 * Math.PI;\n  let z = (glMatrix.RANDOM() * 2.0) - 1.0;\n  let zScale = Math.sqrt(1.0-z*z) * scale;\n\n  out[0] = Math.cos(r) * zScale;\n  out[1] = Math.sin(r) * zScale;\n  out[2] = z * scale;\n  return out;\n}\n\n/**\n * Transforms the vec3 with a mat4.\n * 4th vector component is implicitly '1'\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec3} out\n */\nexport function transformMat4(out, a, m) {\n  let x = a[0], y = a[1], z = a[2];\n  let w = m[3] * x + m[7] * y + m[11] * z + m[15];\n  w = w || 1.0;\n  out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;\n  out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;\n  out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;\n  return out;\n}\n\n/**\n * Transforms the vec3 with a mat3.\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {mat3} m the 3x3 matrix to transform with\n * @returns {vec3} out\n */\nexport function transformMat3(out, a, m) {\n  let x = a[0], y = a[1], z = a[2];\n  out[0] = x * m[0] + y * m[3] + z * m[6];\n  out[1] = x * m[1] + y * m[4] + z * m[7];\n  out[2] = x * m[2] + y * m[5] + z * m[8];\n  return out;\n}\n\n/**\n * Transforms the vec3 with a quat\n * Can also be used for dual quaternions. (Multiply it with the real part)\n *\n * @param {vec3} out the receiving vector\n * @param {vec3} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec3} out\n */\nexport function transformQuat(out, a, q) {\n    // benchmarks: https://jsperf.com/quaternion-transform-vec3-implementations-fixed\n    let qx = q[0], qy = q[1], qz = q[2], qw = q[3];\n    let x = a[0], y = a[1], z = a[2];\n    // var qvec = [qx, qy, qz];\n    // var uv = vec3.cross([], qvec, a);\n    let uvx = qy * z - qz * y,\n        uvy = qz * x - qx * z,\n        uvz = qx * y - qy * x;\n    // var uuv = vec3.cross([], qvec, uv);\n    let uuvx = qy * uvz - qz * uvy,\n        uuvy = qz * uvx - qx * uvz,\n        uuvz = qx * uvy - qy * uvx;\n    // vec3.scale(uv, uv, 2 * w);\n    let w2 = qw * 2;\n    uvx *= w2;\n    uvy *= w2;\n    uvz *= w2;\n    // vec3.scale(uuv, uuv, 2);\n    uuvx *= 2;\n    uuvy *= 2;\n    uuvz *= 2;\n    // return vec3.add(out, a, vec3.add(out, uv, uuv));\n    out[0] = x + uvx + uuvx;\n    out[1] = y + uvy + uuvy;\n    out[2] = z + uvz + uuvz;\n    return out;\n}\n\n/**\n * Rotate a 3D vector around the x-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateX(out, a, b, c){\n  let p = [], r=[];\n  //Translate point to the origin\n  p[0] = a[0] - b[0];\n  p[1] = a[1] - b[1];\n  p[2] = a[2] - b[2];\n\n  //perform rotation\n  r[0] = p[0];\n  r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);\n  r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);\n\n  //translate to correct position\n  out[0] = r[0] + b[0];\n  out[1] = r[1] + b[1];\n  out[2] = r[2] + b[2];\n\n  return out;\n}\n\n/**\n * Rotate a 3D vector around the y-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateY(out, a, b, c){\n  let p = [], r=[];\n  //Translate point to the origin\n  p[0] = a[0] - b[0];\n  p[1] = a[1] - b[1];\n  p[2] = a[2] - b[2];\n\n  //perform rotation\n  r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);\n  r[1] = p[1];\n  r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);\n\n  //translate to correct position\n  out[0] = r[0] + b[0];\n  out[1] = r[1] + b[1];\n  out[2] = r[2] + b[2];\n\n  return out;\n}\n\n/**\n * Rotate a 3D vector around the z-axis\n * @param {vec3} out The receiving vec3\n * @param {vec3} a The vec3 point to rotate\n * @param {vec3} b The origin of the rotation\n * @param {Number} c The angle of rotation\n * @returns {vec3} out\n */\nexport function rotateZ(out, a, b, c){\n  let p = [], r=[];\n  //Translate point to the origin\n  p[0] = a[0] - b[0];\n  p[1] = a[1] - b[1];\n  p[2] = a[2] - b[2];\n\n  //perform rotation\n  r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);\n  r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);\n  r[2] = p[2];\n\n  //translate to correct position\n  out[0] = r[0] + b[0];\n  out[1] = r[1] + b[1];\n  out[2] = r[2] + b[2];\n\n  return out;\n}\n\n/**\n * Get the angle between two 3D vectors\n * @param {vec3} a The first operand\n * @param {vec3} b The second operand\n * @returns {Number} The angle in radians\n */\nexport function angle(a, b) {\n  let tempA = fromValues(a[0], a[1], a[2]);\n  let tempB = fromValues(b[0], b[1], b[2]);\n\n  normalize(tempA, tempA);\n  normalize(tempB, tempB);\n\n  let cosine = dot(tempA, tempB);\n\n  if(cosine > 1.0) {\n    return 0;\n  }\n  else if(cosine < -1.0) {\n    return Math.PI;\n  } else {\n    return Math.acos(cosine);\n  }\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec3} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n  return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';\n}\n\n/**\n * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)\n *\n * @param {vec3} a The first vector.\n * @param {vec3} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec3} a The first vector.\n * @param {vec3} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2];\n  let b0 = b[0], b1 = b[1], b2 = b[2];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)));\n}\n\n/**\n * Alias for {@link vec3.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec3.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec3.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec3.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec3.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec3.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec3.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec3s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n  let vec = create();\n\n  return function(a, stride, offset, count, fn, arg) {\n    let i, l;\n    if(!stride) {\n      stride = 3;\n    }\n\n    if(!offset) {\n      offset = 0;\n    }\n\n    if(count) {\n      l = Math.min((count * stride) + offset, a.length);\n    } else {\n      l = a.length;\n    }\n\n    for(i = offset; i < l; i += stride) {\n      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];\n      fn(vec, vec, arg);\n      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];\n    }\n\n    return a;\n  };\n})();\n","import * as glMatrix from \"./common.js\";\n\n/**\n * 4 Dimensional Vector\n * @module vec4\n */\n\n/**\n * Creates a new, empty vec4\n *\n * @returns {vec4} a new 4D vector\n */\nexport function create() {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  if(glMatrix.ARRAY_TYPE != Float32Array) {\n    out[0] = 0;\n    out[1] = 0;\n    out[2] = 0;\n    out[3] = 0;\n  }\n  return out;\n}\n\n/**\n * Creates a new vec4 initialized with values from an existing vector\n *\n * @param {vec4} a vector to clone\n * @returns {vec4} a new 4D vector\n */\nexport function clone(a) {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Creates a new vec4 initialized with the given values\n *\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} a new 4D vector\n */\nexport function fromValues(x, y, z, w) {\n  let out = new glMatrix.ARRAY_TYPE(4);\n  out[0] = x;\n  out[1] = y;\n  out[2] = z;\n  out[3] = w;\n  return out;\n}\n\n/**\n * Copy the values from one vec4 to another\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the source vector\n * @returns {vec4} out\n */\nexport function copy(out, a) {\n  out[0] = a[0];\n  out[1] = a[1];\n  out[2] = a[2];\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Set the components of a vec4 to the given values\n *\n * @param {vec4} out the receiving vector\n * @param {Number} x X component\n * @param {Number} y Y component\n * @param {Number} z Z component\n * @param {Number} w W component\n * @returns {vec4} out\n */\nexport function set(out, x, y, z, w) {\n  out[0] = x;\n  out[1] = y;\n  out[2] = z;\n  out[3] = w;\n  return out;\n}\n\n/**\n * Adds two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function add(out, a, b) {\n  out[0] = a[0] + b[0];\n  out[1] = a[1] + b[1];\n  out[2] = a[2] + b[2];\n  out[3] = a[3] + b[3];\n  return out;\n}\n\n/**\n * Subtracts vector b from vector a\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function subtract(out, a, b) {\n  out[0] = a[0] - b[0];\n  out[1] = a[1] - b[1];\n  out[2] = a[2] - b[2];\n  out[3] = a[3] - b[3];\n  return out;\n}\n\n/**\n * Multiplies two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function multiply(out, a, b) {\n  out[0] = a[0] * b[0];\n  out[1] = a[1] * b[1];\n  out[2] = a[2] * b[2];\n  out[3] = a[3] * b[3];\n  return out;\n}\n\n/**\n * Divides two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function divide(out, a, b) {\n  out[0] = a[0] / b[0];\n  out[1] = a[1] / b[1];\n  out[2] = a[2] / b[2];\n  out[3] = a[3] / b[3];\n  return out;\n}\n\n/**\n * Math.ceil the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to ceil\n * @returns {vec4} out\n */\nexport function ceil(out, a) {\n  out[0] = Math.ceil(a[0]);\n  out[1] = Math.ceil(a[1]);\n  out[2] = Math.ceil(a[2]);\n  out[3] = Math.ceil(a[3]);\n  return out;\n}\n\n/**\n * Math.floor the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to floor\n * @returns {vec4} out\n */\nexport function floor(out, a) {\n  out[0] = Math.floor(a[0]);\n  out[1] = Math.floor(a[1]);\n  out[2] = Math.floor(a[2]);\n  out[3] = Math.floor(a[3]);\n  return out;\n}\n\n/**\n * Returns the minimum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function min(out, a, b) {\n  out[0] = Math.min(a[0], b[0]);\n  out[1] = Math.min(a[1], b[1]);\n  out[2] = Math.min(a[2], b[2]);\n  out[3] = Math.min(a[3], b[3]);\n  return out;\n}\n\n/**\n * Returns the maximum of two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {vec4} out\n */\nexport function max(out, a, b) {\n  out[0] = Math.max(a[0], b[0]);\n  out[1] = Math.max(a[1], b[1]);\n  out[2] = Math.max(a[2], b[2]);\n  out[3] = Math.max(a[3], b[3]);\n  return out;\n}\n\n/**\n * Math.round the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to round\n * @returns {vec4} out\n */\nexport function round(out, a) {\n  out[0] = Math.round(a[0]);\n  out[1] = Math.round(a[1]);\n  out[2] = Math.round(a[2]);\n  out[3] = Math.round(a[3]);\n  return out;\n}\n\n/**\n * Scales a vec4 by a scalar number\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to scale\n * @param {Number} b amount to scale the vector by\n * @returns {vec4} out\n */\nexport function scale(out, a, b) {\n  out[0] = a[0] * b;\n  out[1] = a[1] * b;\n  out[2] = a[2] * b;\n  out[3] = a[3] * b;\n  return out;\n}\n\n/**\n * Adds two vec4's after scaling the second operand by a scalar value\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} scale the amount to scale b by before adding\n * @returns {vec4} out\n */\nexport function scaleAndAdd(out, a, b, scale) {\n  out[0] = a[0] + (b[0] * scale);\n  out[1] = a[1] + (b[1] * scale);\n  out[2] = a[2] + (b[2] * scale);\n  out[3] = a[3] + (b[3] * scale);\n  return out;\n}\n\n/**\n * Calculates the euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} distance between a and b\n */\nexport function distance(a, b) {\n  let x = b[0] - a[0];\n  let y = b[1] - a[1];\n  let z = b[2] - a[2];\n  let w = b[3] - a[3];\n  return Math.sqrt(x*x + y*y + z*z + w*w);\n}\n\n/**\n * Calculates the squared euclidian distance between two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} squared distance between a and b\n */\nexport function squaredDistance(a, b) {\n  let x = b[0] - a[0];\n  let y = b[1] - a[1];\n  let z = b[2] - a[2];\n  let w = b[3] - a[3];\n  return x*x + y*y + z*z + w*w;\n}\n\n/**\n * Calculates the length of a vec4\n *\n * @param {vec4} a vector to calculate length of\n * @returns {Number} length of a\n */\nexport function length(a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  let w = a[3];\n  return Math.sqrt(x*x + y*y + z*z + w*w);\n}\n\n/**\n * Calculates the squared length of a vec4\n *\n * @param {vec4} a vector to calculate squared length of\n * @returns {Number} squared length of a\n */\nexport function squaredLength(a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  let w = a[3];\n  return x*x + y*y + z*z + w*w;\n}\n\n/**\n * Negates the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to negate\n * @returns {vec4} out\n */\nexport function negate(out, a) {\n  out[0] = -a[0];\n  out[1] = -a[1];\n  out[2] = -a[2];\n  out[3] = -a[3];\n  return out;\n}\n\n/**\n * Returns the inverse of the components of a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to invert\n * @returns {vec4} out\n */\nexport function inverse(out, a) {\n  out[0] = 1.0 / a[0];\n  out[1] = 1.0 / a[1];\n  out[2] = 1.0 / a[2];\n  out[3] = 1.0 / a[3];\n  return out;\n}\n\n/**\n * Normalize a vec4\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a vector to normalize\n * @returns {vec4} out\n */\nexport function normalize(out, a) {\n  let x = a[0];\n  let y = a[1];\n  let z = a[2];\n  let w = a[3];\n  let len = x*x + y*y + z*z + w*w;\n  if (len > 0) {\n    len = 1 / Math.sqrt(len);\n    out[0] = x * len;\n    out[1] = y * len;\n    out[2] = z * len;\n    out[3] = w * len;\n  }\n  return out;\n}\n\n/**\n * Calculates the dot product of two vec4's\n *\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @returns {Number} dot product of a and b\n */\nexport function dot(a, b) {\n  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];\n}\n\n/**\n * Performs a linear interpolation between two vec4's\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the first operand\n * @param {vec4} b the second operand\n * @param {Number} t interpolation amount, in the range [0-1], between the two inputs\n * @returns {vec4} out\n */\nexport function lerp(out, a, b, t) {\n  let ax = a[0];\n  let ay = a[1];\n  let az = a[2];\n  let aw = a[3];\n  out[0] = ax + t * (b[0] - ax);\n  out[1] = ay + t * (b[1] - ay);\n  out[2] = az + t * (b[2] - az);\n  out[3] = aw + t * (b[3] - aw);\n  return out;\n}\n\n/**\n * Generates a random vector with the given scale\n *\n * @param {vec4} out the receiving vector\n * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned\n * @returns {vec4} out\n */\nexport function random(out, scale) {\n  scale = scale || 1.0;\n\n  // Marsaglia, George. Choosing a Point from the Surface of a\n  // Sphere. Ann. Math. Statist. 43 (1972), no. 2, 645--646.\n  // http://projecteuclid.org/euclid.aoms/1177692644;\n  var v1, v2, v3, v4;\n  var s1, s2;\n  do {\n    v1 = glMatrix.RANDOM() * 2 - 1;\n    v2 = glMatrix.RANDOM() * 2 - 1;\n    s1 = v1 * v1 + v2 * v2;\n  } while (s1 >= 1);\n  do {\n    v3 = glMatrix.RANDOM() * 2 - 1;\n    v4 = glMatrix.RANDOM() * 2 - 1;\n    s2 = v3 * v3 + v4 * v4;\n  } while (s2 >= 1);\n\n  var d = Math.sqrt((1 - s1) / s2);\n  out[0] = scale * v1;\n  out[1] = scale * v2;\n  out[2] = scale * v3 * d;\n  out[3] = scale * v4 * d;\n  return out;\n}\n\n/**\n * Transforms the vec4 with a mat4.\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {mat4} m matrix to transform with\n * @returns {vec4} out\n */\nexport function transformMat4(out, a, m) {\n  let x = a[0], y = a[1], z = a[2], w = a[3];\n  out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;\n  out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;\n  out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;\n  out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;\n  return out;\n}\n\n/**\n * Transforms the vec4 with a quat\n *\n * @param {vec4} out the receiving vector\n * @param {vec4} a the vector to transform\n * @param {quat} q quaternion to transform with\n * @returns {vec4} out\n */\nexport function transformQuat(out, a, q) {\n  let x = a[0], y = a[1], z = a[2];\n  let qx = q[0], qy = q[1], qz = q[2], qw = q[3];\n\n  // calculate quat * vec\n  let ix = qw * x + qy * z - qz * y;\n  let iy = qw * y + qz * x - qx * z;\n  let iz = qw * z + qx * y - qy * x;\n  let iw = -qx * x - qy * y - qz * z;\n\n  // calculate result * inverse quat\n  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;\n  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;\n  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;\n  out[3] = a[3];\n  return out;\n}\n\n/**\n * Returns a string representation of a vector\n *\n * @param {vec4} a vector to represent as a string\n * @returns {String} string representation of the vector\n */\nexport function str(a) {\n  return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';\n}\n\n/**\n * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)\n *\n * @param {vec4} a The first vector.\n * @param {vec4} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function exactEquals(a, b) {\n  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];\n}\n\n/**\n * Returns whether or not the vectors have approximately the same elements in the same position.\n *\n * @param {vec4} a The first vector.\n * @param {vec4} b The second vector.\n * @returns {Boolean} True if the vectors are equal, false otherwise.\n */\nexport function equals(a, b) {\n  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];\n  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];\n  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&\n          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&\n          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&\n          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));\n}\n\n/**\n * Alias for {@link vec4.subtract}\n * @function\n */\nexport const sub = subtract;\n\n/**\n * Alias for {@link vec4.multiply}\n * @function\n */\nexport const mul = multiply;\n\n/**\n * Alias for {@link vec4.divide}\n * @function\n */\nexport const div = divide;\n\n/**\n * Alias for {@link vec4.distance}\n * @function\n */\nexport const dist = distance;\n\n/**\n * Alias for {@link vec4.squaredDistance}\n * @function\n */\nexport const sqrDist = squaredDistance;\n\n/**\n * Alias for {@link vec4.length}\n * @function\n */\nexport const len = length;\n\n/**\n * Alias for {@link vec4.squaredLength}\n * @function\n */\nexport const sqrLen = squaredLength;\n\n/**\n * Perform some operation over an array of vec4s.\n *\n * @param {Array} a the array of vectors to iterate over\n * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed\n * @param {Number} offset Number of elements to skip at the beginning of the array\n * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array\n * @param {Function} fn Function to call for each vector in the array\n * @param {Object} [arg] additional argument to pass to fn\n * @returns {Array} a\n * @function\n */\nexport const forEach = (function() {\n  let vec = create();\n\n  return function(a, stride, offset, count, fn, arg) {\n    let i, l;\n    if(!stride) {\n      stride = 4;\n    }\n\n    if(!offset) {\n      offset = 0;\n    }\n\n    if(count) {\n      l = Math.min((count * stride) + offset, a.length);\n    } else {\n      l = a.length;\n    }\n\n    for(i = offset; i < l; i += stride) {\n      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];\n      fn(vec, vec, arg);\n      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];\n    }\n\n    return a;\n  };\n})();\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nconst GL = WebGLRenderingContext; // For enums\n\nexport const CAP = {\n  // Enable caps\n  CULL_FACE: 0x001,\n  BLEND: 0x002,\n  DEPTH_TEST: 0x004,\n  STENCIL_TEST: 0x008,\n  COLOR_MASK: 0x010,\n  DEPTH_MASK: 0x020,\n  STENCIL_MASK: 0x040,\n};\n\nexport const MAT_STATE = {\n  CAPS_RANGE: 0x000000FF,\n  BLEND_SRC_SHIFT: 8,\n  BLEND_SRC_RANGE: 0x00000F00,\n  BLEND_DST_SHIFT: 12,\n  BLEND_DST_RANGE: 0x0000F000,\n  BLEND_FUNC_RANGE: 0x0000FF00,\n  DEPTH_FUNC_SHIFT: 16,\n  DEPTH_FUNC_RANGE: 0x000F0000,\n};\n\nexport const RENDER_ORDER = {\n  // Render opaque objects first.\n  OPAQUE: 0,\n\n  // Render the sky after all opaque object to save fill rate.\n  SKY: 1,\n\n  // Render transparent objects next so that the opaqe objects show through.\n  TRANSPARENT: 2,\n\n  // Finally render purely additive effects like pointer rays so that they\n  // can render without depth mask.\n  ADDITIVE: 3,\n\n  // Render order will be picked based on the material properties.\n  DEFAULT: 4,\n};\n\nexport function stateToBlendFunc(state, mask, shift) {\n  let value = (state & mask) >> shift;\n  switch (value) {\n    case 0:\n    case 1:\n      return value;\n    default:\n      return (value - 2) + GL.SRC_COLOR;\n  }\n}\n\nexport class MaterialState {\n  constructor() {\n    this._state = CAP.CULL_FACE |\n                  CAP.DEPTH_TEST |\n                  CAP.COLOR_MASK |\n                  CAP.DEPTH_MASK;\n\n    // Use a fairly commonly desired blend func as the default.\n    this.blendFuncSrc = GL.SRC_ALPHA;\n    this.blendFuncDst = GL.ONE_MINUS_SRC_ALPHA;\n\n    this.depthFunc = GL.LESS;\n  }\n\n  get cullFace() {\n    return !!(this._state & CAP.CULL_FACE);\n  }\n  set cullFace(value) {\n    if (value) {\n      this._state |= CAP.CULL_FACE;\n    } else {\n      this._state &= ~CAP.CULL_FACE;\n    }\n  }\n\n  get blend() {\n    return !!(this._state & CAP.BLEND);\n  }\n  set blend(value) {\n    if (value) {\n      this._state |= CAP.BLEND;\n    } else {\n      this._state &= ~CAP.BLEND;\n    }\n  }\n\n  get depthTest() {\n    return !!(this._state & CAP.DEPTH_TEST);\n  }\n  set depthTest(value) {\n    if (value) {\n      this._state |= CAP.DEPTH_TEST;\n    } else {\n      this._state &= ~CAP.DEPTH_TEST;\n    }\n  }\n\n  get stencilTest() {\n    return !!(this._state & CAP.STENCIL_TEST);\n  }\n  set stencilTest(value) {\n    if (value) {\n      this._state |= CAP.STENCIL_TEST;\n    } else {\n      this._state &= ~CAP.STENCIL_TEST;\n    }\n  }\n\n  get colorMask() {\n    return !!(this._state & CAP.COLOR_MASK);\n  }\n  set colorMask(value) {\n    if (value) {\n      this._state |= CAP.COLOR_MASK;\n    } else {\n      this._state &= ~CAP.COLOR_MASK;\n    }\n  }\n\n  get depthMask() {\n    return !!(this._state & CAP.DEPTH_MASK);\n  }\n  set depthMask(value) {\n    if (value) {\n      this._state |= CAP.DEPTH_MASK;\n    } else {\n      this._state &= ~CAP.DEPTH_MASK;\n    }\n  }\n\n  get depthFunc() {\n    return ((this._state & MAT_STATE.DEPTH_FUNC_RANGE) >> MAT_STATE.DEPTH_FUNC_SHIFT) + GL.NEVER;\n  }\n  set depthFunc(value) {\n    value = value - GL.NEVER;\n    this._state &= ~MAT_STATE.DEPTH_FUNC_RANGE;\n    this._state |= (value << MAT_STATE.DEPTH_FUNC_SHIFT);\n  }\n\n  get stencilMask() {\n    return !!(this._state & CAP.STENCIL_MASK);\n  }\n  set stencilMask(value) {\n    if (value) {\n      this._state |= CAP.STENCIL_MASK;\n    } else {\n      this._state &= ~CAP.STENCIL_MASK;\n    }\n  }\n\n  get blendFuncSrc() {\n    return stateToBlendFunc(this._state, MAT_STATE.BLEND_SRC_RANGE, MAT_STATE.BLEND_SRC_SHIFT);\n  }\n  set blendFuncSrc(value) {\n    switch (value) {\n      case 0:\n      case 1:\n        break;\n      default:\n        value = (value - GL.SRC_COLOR) + 2;\n    }\n    this._state &= ~MAT_STATE.BLEND_SRC_RANGE;\n    this._state |= (value << MAT_STATE.BLEND_SRC_SHIFT);\n  }\n\n  get blendFuncDst() {\n    return stateToBlendFunc(this._state, MAT_STATE.BLEND_DST_RANGE, MAT_STATE.BLEND_DST_SHIFT);\n  }\n  set blendFuncDst(value) {\n    switch (value) {\n      case 0:\n      case 1:\n        break;\n      default:\n        value = (value - GL.SRC_COLOR) + 2;\n    }\n    this._state &= ~MAT_STATE.BLEND_DST_RANGE;\n    this._state |= (value << MAT_STATE.BLEND_DST_SHIFT);\n  }\n}\n\nclass MaterialSampler {\n  constructor(uniformName) {\n    this._uniformName = uniformName;\n    this._texture = null;\n  }\n\n  get texture() {\n    return this._texture;\n  }\n\n  set texture(value) {\n    this._texture = value;\n  }\n}\n\nclass MaterialUniform {\n  constructor(uniformName, defaultValue, length) {\n    this._uniformName = uniformName;\n    this._value = defaultValue;\n    this._length = length;\n    if (!this._length) {\n      if (defaultValue instanceof Array) {\n        this._length = defaultValue.length;\n      } else {\n        this._length = 1;\n      }\n    }\n  }\n\n  get value() {\n    return this._value;\n  }\n\n  set value(value) {\n    this._value = value;\n  }\n}\n\nexport class Material {\n  constructor() {\n    this.state = new MaterialState;\n    this.renderOrder = RENDER_ORDER.DEFAULT;\n    this._samplers = [];\n    this._uniforms = [];\n  }\n\n  defineSampler(uniformName) {\n    let sampler = new MaterialSampler(uniformName);\n    this._samplers.push(sampler);\n    return sampler;\n  }\n\n  defineUniform(uniformName, defaultValue=null, length=0) {\n    let uniform = new MaterialUniform(uniformName, defaultValue, length);\n    this._uniforms.push(uniform);\n    return uniform;\n  }\n\n  get materialName() {\n    return null;\n  }\n\n  get vertexSource() {\n    return null;\n  }\n\n  get fragmentSource() {\n    return null;\n  }\n\n  getProgramDefines(renderPrimitive) {\n    return {};\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Ray} from '../math/ray.js';\nimport {mat4, vec3, quat} from '../math/gl-matrix.js';\n\nconst DEFAULT_TRANSLATION = new Float32Array([0, 0, 0]);\nconst DEFAULT_ROTATION = new Float32Array([0, 0, 0, 1]);\nconst DEFAULT_SCALE = new Float32Array([1, 1, 1]);\n\nlet tmpRayMatrix = mat4.create();\n\nexport class Node {\n  constructor() {\n    this.name = null; // Only for debugging\n    this.children = [];\n    this.parent = null;\n    this.visible = true;\n    this.selectable = false;\n\n    this._matrix = null;\n\n    this._dirtyTRS = false;\n    this._translation = null;\n    this._rotation = null;\n    this._scale = null;\n\n    this._dirtyWorldMatrix = false;\n    this._worldMatrix = null;\n\n    this._activeFrameId = -1;\n    this._hoverFrameId = -1;\n    this._renderPrimitives = null;\n    this._renderer = null;\n\n    this._selectHandler = null;\n  }\n\n  _setRenderer(renderer) {\n    if (this._renderer == renderer) {\n      return;\n    }\n\n    if (this._renderer) {\n      // Changing the renderer removes any previously attached renderPrimitives\n      // from a different renderer.\n      this.clearRenderPrimitives();\n    }\n\n    this._renderer = renderer;\n    if (renderer) {\n      this.onRendererChanged(renderer);\n\n      for (let child of this.children) {\n        child._setRenderer(renderer);\n      }\n    }\n  }\n\n  onRendererChanged(renderer) {\n    // Override in other node types to respond to changes in the renderer.\n  }\n\n  // Create a clone of this node and all of it's children. Does not duplicate\n  // RenderPrimitives, the cloned nodes will be treated as new instances of the\n  // geometry.\n  clone() {\n    let cloneNode = new Node();\n    cloneNode.name = this.name;\n    cloneNode.visible = this.visible;\n    cloneNode._renderer = this._renderer;\n\n    cloneNode._dirtyTRS = this._dirtyTRS;\n\n    if (this._translation) {\n      cloneNode._translation = vec3.create();\n      vec3.copy(cloneNode._translation, this._translation);\n    }\n\n    if (this._rotation) {\n      cloneNode._rotation = quat.create();\n      quat.copy(cloneNode._rotation, this._rotation);\n    }\n\n    if (this._scale) {\n      cloneNode._scale = vec3.create();\n      vec3.copy(cloneNode._scale, this._scale);\n    }\n\n    // Only copy the matrices if they're not already dirty.\n    if (!cloneNode._dirtyTRS && this._matrix) {\n      cloneNode._matrix = mat4.create();\n      mat4.copy(cloneNode._matrix, this._matrix);\n    }\n\n    cloneNode._dirtyWorldMatrix = this._dirtyWorldMatrix;\n    if (!cloneNode._dirtyWorldMatrix && this._worldMatrix) {\n      cloneNode._worldMatrix = mat4.create();\n      mat4.copy(cloneNode._worldMatrix, this._worldMatrix);\n    }\n\n    this.waitForComplete().then(() => {\n      if (this._renderPrimitives) {\n        for (let primitive of this._renderPrimitives) {\n          cloneNode.addRenderPrimitive(primitive);\n        }\n      }\n\n      for (let child of this.children) {\n        cloneNode.addNode(child.clone());\n      }\n    });\n\n    return cloneNode;\n  }\n\n  markActive(frameId) {\n    if (this.visible && this._renderPrimitives) {\n      this._activeFrameId = frameId;\n      for (let primitive of this._renderPrimitives) {\n        primitive.markActive(frameId);\n      }\n    }\n\n    for (let child of this.children) {\n      if (child.visible) {\n        child.markActive(frameId);\n      }\n    }\n  }\n\n  addNode(value) {\n    if (!value || value.parent == this) {\n      return;\n    }\n\n    if (value.parent) {\n      value.parent.removeNode(value);\n    }\n    value.parent = this;\n\n    this.children.push(value);\n\n    if (this._renderer) {\n      value._setRenderer(this._renderer);\n    }\n  }\n\n  removeNode(value) {\n    let i = this.children.indexOf(value);\n    if (i > -1) {\n      this.children.splice(i, 1);\n      value.parent = null;\n    }\n  }\n\n  clearNodes() {\n    for (let child of this.children) {\n      child.parent = null;\n    }\n    this.children = [];\n  }\n\n  setMatrixDirty() {\n    if (!this._dirtyWorldMatrix) {\n      this._dirtyWorldMatrix = true;\n      for (let child of this.children) {\n        child.setMatrixDirty();\n      }\n    }\n  }\n\n  _updateLocalMatrix() {\n    if (!this._matrix) {\n      this._matrix = mat4.create();\n    }\n\n    if (this._dirtyTRS) {\n      this._dirtyTRS = false;\n      mat4.fromRotationTranslationScale(\n        this._matrix,\n        this._rotation || DEFAULT_ROTATION,\n        this._translation || DEFAULT_TRANSLATION,\n        this._scale || DEFAULT_SCALE);\n    }\n\n    return this._matrix;\n  }\n\n  set matrix(value) {\n    if (value) {\n      if (!this._matrix) {\n        this._matrix = mat4.create();\n      }\n      mat4.copy(this._matrix, value);\n    } else {\n      this._matrix = null;\n    }\n    this.setMatrixDirty();\n    this._dirtyTRS = false;\n    this._translation = null;\n    this._rotation = null;\n    this._scale = null;\n  }\n\n  get matrix() {\n    this.setMatrixDirty();\n\n    return this._updateLocalMatrix();\n  }\n\n  get worldMatrix() {\n    if (!this._worldMatrix) {\n      this._dirtyWorldMatrix = true;\n      this._worldMatrix = mat4.create();\n    }\n\n    if (this._dirtyWorldMatrix || this._dirtyTRS) {\n      if (this.parent) {\n        // TODO: Some optimizations that could be done here if the node matrix\n        // is an identity matrix.\n        mat4.mul(this._worldMatrix, this.parent.worldMatrix, this._updateLocalMatrix());\n      } else {\n        mat4.copy(this._worldMatrix, this._updateLocalMatrix());\n      }\n      this._dirtyWorldMatrix = false;\n    }\n\n    return this._worldMatrix;\n  }\n\n  // TODO: Decompose matrix when fetching these?\n  set translation(value) {\n    if (value != null) {\n      this._dirtyTRS = true;\n      this.setMatrixDirty();\n    }\n    this._translation = value;\n  }\n\n  get translation() {\n    this._dirtyTRS = true;\n    this.setMatrixDirty();\n    if (!this._translation) {\n      this._translation = vec3.clone(DEFAULT_TRANSLATION);\n    }\n    return this._translation;\n  }\n\n  set rotation(value) {\n    if (value != null) {\n      this._dirtyTRS = true;\n      this.setMatrixDirty();\n    }\n    this._rotation = value;\n  }\n\n  get rotation() {\n    this._dirtyTRS = true;\n    this.setMatrixDirty();\n    if (!this._rotation) {\n      this._rotation = quat.clone(DEFAULT_ROTATION);\n    }\n    return this._rotation;\n  }\n\n  set scale(value) {\n    if (value != null) {\n      this._dirtyTRS = true;\n      this.setMatrixDirty();\n    }\n    this._scale = value;\n  }\n\n  get scale() {\n    this._dirtyTRS = true;\n    this.setMatrixDirty();\n    if (!this._scale) {\n      this._scale = vec3.clone(DEFAULT_SCALE);\n    }\n    return this._scale;\n  }\n\n  waitForComplete() {\n    let childPromises = [];\n    for (let child of this.children) {\n      childPromises.push(child.waitForComplete());\n    }\n    if (this._renderPrimitives) {\n      for (let primitive of this._renderPrimitives) {\n        childPromises.push(primitive.waitForComplete());\n      }\n    }\n    return Promise.all(childPromises).then(() => this);\n  }\n\n  get renderPrimitives() {\n    return this._renderPrimitives;\n  }\n\n  addRenderPrimitive(primitive) {\n    if (!this._renderPrimitives) {\n      this._renderPrimitives = [primitive];\n    } else {\n      this._renderPrimitives.push(primitive);\n    }\n    primitive._instances.push(this);\n  }\n\n  removeRenderPrimitive(primitive) {\n    if (!this._renderPrimitives) {\n      return;\n    }\n\n    let index = this._renderPrimitives._instances.indexOf(primitive);\n    if (index > -1) {\n      this._renderPrimitives._instances.splice(index, 1);\n\n      index = primitive._instances.indexOf(this);\n      if (index > -1) {\n        primitive._instances.splice(index, 1);\n      }\n\n      if (!this._renderPrimitives.length) {\n        this._renderPrimitives = null;\n      }\n    }\n  }\n\n  clearRenderPrimitives() {\n    if (this._renderPrimitives) {\n      for (let primitive of this._renderPrimitives) {\n        let index = primitive._instances.indexOf(this);\n        if (index > -1) {\n          primitive._instances.splice(index, 1);\n        }\n      }\n      this._renderPrimitives = null;\n    }\n  }\n\n  _hitTestSelectableNode(ray) {\n    if (this._renderPrimitives) {\n      let localRay = null;\n      for (let primitive of this._renderPrimitives) {\n        if (primitive._min) {\n          if (!localRay) {\n            mat4.invert(tmpRayMatrix, this.worldMatrix);\n            mat4.multiply(tmpRayMatrix, tmpRayMatrix, ray.transformMatrix);\n            localRay = new Ray(tmpRayMatrix);\n          }\n          let intersection = localRay.intersectsAABB(primitive._min, primitive._max);\n          if (intersection) {\n            vec3.transformMat4(intersection, intersection, this.worldMatrix);\n            return intersection;\n          }\n        }\n      }\n    }\n    for (let child of this.children) {\n      let intersection = child._hitTestSelectableNode(ray);\n      if (intersection) {\n        return intersection;\n      }\n    }\n    return null;\n  }\n\n  hitTest(ray) {\n    if (this.selectable && this.visible) {\n      let intersection = this._hitTestSelectableNode(ray);\n\n      if (intersection) {\n        let origin = vec3.fromValues(ray.origin.x, ray.origin.y, ray.origin.z);\n        return {\n          node: this,\n          intersection: intersection,\n          distance: vec3.distance(origin, intersection),\n        };\n      }\n      return null;\n    }\n\n    let result = null;\n    for (let child of this.children) {\n      let childResult = child.hitTest(ray);\n      if (childResult) {\n        if (!result || result.distance > childResult.distance) {\n          result = childResult;\n        }\n      }\n    }\n    return result;\n  }\n\n  onSelect(value) {\n    this._selectHandler = value;\n  }\n\n  get selectHandler() {\n    return this._selectHandler;\n  }\n\n  // Called when a selectable node is selected.\n  handleSelect() {\n    if (this._selectHandler) {\n      this._selectHandler();\n    }\n  }\n\n  // Called when a selectable element is pointed at.\n  onHoverStart() {\n\n  }\n\n  // Called when a selectable element is no longer pointed at.\n  onHoverEnd() {\n\n  }\n\n  _update(timestamp, frameDelta) {\n    this.onUpdate(timestamp, frameDelta);\n\n    for (let child of this.children) {\n      child._update(timestamp, frameDelta);\n    }\n  }\n\n  // Called every frame so that the nodes can animate themselves\n  onUpdate(timestamp, frameDelta) {\n\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {vec3} from '../math/gl-matrix.js';\n\nexport class PrimitiveAttribute {\n  constructor(name, buffer, componentCount, componentType, stride, byteOffset) {\n    this.name = name;\n    this.buffer = buffer;\n    this.componentCount = componentCount || 3;\n    this.componentType = componentType || 5126; // gl.FLOAT;\n    this.stride = stride || 0;\n    this.byteOffset = byteOffset || 0;\n    this.normalized = false;\n  }\n}\n\nexport class Primitive {\n  constructor(attributes, elementCount, mode) {\n    this.attributes = attributes || [];\n    this.elementCount = elementCount || 0;\n    this.mode = mode || 4; // gl.TRIANGLES;\n    this.indexBuffer = null;\n    this.indexByteOffset = 0;\n    this.indexType = 0;\n    this._min = null;\n    this._max = null;\n  }\n\n  setIndexBuffer(indexBuffer, byteOffset, indexType) {\n    this.indexBuffer = indexBuffer;\n    this.indexByteOffset = byteOffset || 0;\n    this.indexType = indexType || 5123; // gl.UNSIGNED_SHORT;\n  }\n\n  setBounds(min, max) {\n    this._min = vec3.clone(min);\n    this._max = vec3.clone(max);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nexport class Program {\n  constructor(gl, vertSrc, fragSrc, attribMap, defines) {\n    this._gl = gl;\n    this.program = gl.createProgram();\n    this.attrib = null;\n    this.uniform = null;\n    this.defines = {};\n\n    this._firstUse = true;\n    this._nextUseCallbacks = [];\n\n    let definesString = '';\n    if (defines) {\n      for (let define in defines) {\n        this.defines[define] = defines[define];\n        definesString += `#define ${define} ${defines[define]}\\n`;\n      }\n    }\n\n    this._vertShader = gl.createShader(gl.VERTEX_SHADER);\n    gl.attachShader(this.program, this._vertShader);\n    gl.shaderSource(this._vertShader, definesString + vertSrc);\n    gl.compileShader(this._vertShader);\n\n    this._fragShader = gl.createShader(gl.FRAGMENT_SHADER);\n    gl.attachShader(this.program, this._fragShader);\n    gl.shaderSource(this._fragShader, definesString + fragSrc);\n    gl.compileShader(this._fragShader);\n\n    if (attribMap) {\n      this.attrib = {};\n      for (let attribName in attribMap) {\n        gl.bindAttribLocation(this.program, attribMap[attribName], attribName);\n        this.attrib[attribName] = attribMap[attribName];\n      }\n    }\n\n    gl.linkProgram(this.program);\n  }\n\n  onNextUse(callback) {\n    this._nextUseCallbacks.push(callback);\n  }\n\n  use() {\n    let gl = this._gl;\n\n    // If this is the first time the program has been used do all the error checking and\n    // attrib/uniform querying needed.\n    if (this._firstUse) {\n      this._firstUse = false;\n      if (!gl.getProgramParameter(this.program, gl.LINK_STATUS)) {\n        if (!gl.getShaderParameter(this._vertShader, gl.COMPILE_STATUS)) {\n          console.error('Vertex shader compile error: ' + gl.getShaderInfoLog(this._vertShader));\n        } else if (!gl.getShaderParameter(this._fragShader, gl.COMPILE_STATUS)) {\n          console.error('Fragment shader compile error: ' + gl.getShaderInfoLog(this._fragShader));\n        } else {\n          console.error('Program link error: ' + gl.getProgramInfoLog(this.program));\n        }\n        gl.deleteProgram(this.program);\n        this.program = null;\n      } else {\n        if (!this.attrib) {\n          this.attrib = {};\n          let attribCount = gl.getProgramParameter(this.program, gl.ACTIVE_ATTRIBUTES);\n          for (let i = 0; i < attribCount; i++) {\n            let attribInfo = gl.getActiveAttrib(this.program, i);\n            this.attrib[attribInfo.name] = gl.getAttribLocation(this.program, attribInfo.name);\n          }\n        }\n\n        this.uniform = {};\n        let uniformCount = gl.getProgramParameter(this.program, gl.ACTIVE_UNIFORMS);\n        let uniformName = '';\n        for (let i = 0; i < uniformCount; i++) {\n          let uniformInfo = gl.getActiveUniform(this.program, i);\n          uniformName = uniformInfo.name.replace('[0]', '');\n          this.uniform[uniformName] = gl.getUniformLocation(this.program, uniformName);\n        }\n      }\n      gl.deleteShader(this._vertShader);\n      gl.deleteShader(this._fragShader);\n    }\n\n    gl.useProgram(this.program);\n\n    if (this._nextUseCallbacks.length) {\n      for (let callback of this._nextUseCallbacks) {\n        callback(this);\n      }\n      this._nextUseCallbacks = [];\n    }\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {CAP, MAT_STATE, RENDER_ORDER, stateToBlendFunc} from './material.js';\nimport {Node} from './node.js';\nimport {Program} from './program.js';\nimport {DataTexture, VideoTexture} from './texture.js';\nimport {mat4, vec3} from '../math/gl-matrix.js';\n\nexport const ATTRIB = {\n  POSITION: 1,\n  NORMAL: 2,\n  TANGENT: 3,\n  TEXCOORD_0: 4,\n  TEXCOORD_1: 5,\n  COLOR_0: 6,\n};\n\nexport const ATTRIB_MASK = {\n  POSITION: 0x0001,\n  NORMAL: 0x0002,\n  TANGENT: 0x0004,\n  TEXCOORD_0: 0x0008,\n  TEXCOORD_1: 0x0010,\n  COLOR_0: 0x0020,\n};\n\nconst GL = WebGLRenderingContext; // For enums\n\nconst DEF_LIGHT_DIR = new Float32Array([-0.1, -1.0, -0.2]);\nconst DEF_LIGHT_COLOR = new Float32Array([3.0, 3.0, 3.0]);\n\nconst PRECISION_REGEX = new RegExp('precision (lowp|mediump|highp) float;');\n\nconst VERTEX_SHADER_SINGLE_ENTRY = `\nuniform mat4 PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX;\n\nvoid main() {\n  gl_Position = vertex_main(PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX);\n}\n`;\n\nconst VERTEX_SHADER_MULTI_ENTRY = `\n#ERROR Multiview rendering is not implemented\nvoid main() {\n  gl_Position = vec4(0.0, 0.0, 0.0, 1.0);\n}\n`;\n\nconst FRAGMENT_SHADER_ENTRY = `\nvoid main() {\n  gl_FragColor = fragment_main();\n}\n`;\n\nfunction isPowerOfTwo(n) {\n  return (n & (n - 1)) === 0;\n}\n\n// Creates a WebGL context and initializes it with some common default state.\nexport function createWebGLContext(glAttribs) {\n  glAttribs = glAttribs || {alpha: false};\n\n  let webglCanvas = document.createElement('canvas');\n  let contextTypes = glAttribs.webgl2 ? ['webgl2'] : ['webgl', 'experimental-webgl'];\n  let context = null;\n\n  for (let contextType of contextTypes) {\n    context = webglCanvas.getContext(contextType, glAttribs);\n    if (context) {\n      break;\n    }\n  }\n\n  if (!context) {\n    let webglType = (glAttribs.webgl2 ? 'WebGL 2' : 'WebGL');\n    console.error('This browser does not support ' + webglType + '.');\n    return null;\n  }\n\n  return context;\n}\n\nexport class RenderView {\n  constructor(projectionMatrix, viewMatrix, viewport = null, eye = 'left') {\n    this.projectionMatrix = projectionMatrix;\n    this.viewMatrix = viewMatrix;\n    this.viewport = viewport;\n    // If an eye isn't given the left eye is assumed.\n    this._eye = eye;\n    this._eyeIndex = (eye == 'left' ? 0 : 1);\n  }\n\n  get eye() {\n    return this._eye;\n  }\n\n  set eye(value) {\n    this._eye = value;\n    this._eyeIndex = (value == 'left' ? 0 : 1);\n  }\n\n  get eyeIndex() {\n    return this._eyeIndex;\n  }\n}\n\nclass RenderBuffer {\n  constructor(target, usage, buffer, length = 0) {\n    this._target = target;\n    this._usage = usage;\n    this._length = length;\n    if (buffer instanceof Promise) {\n      this._buffer = null;\n      this._promise = buffer.then((buffer) => {\n        this._buffer = buffer;\n        return this;\n      });\n    } else {\n      this._buffer = buffer;\n      this._promise = Promise.resolve(this);\n    }\n  }\n\n  waitForComplete() {\n    return this._promise;\n  }\n}\n\nclass RenderPrimitiveAttribute {\n  constructor(primitiveAttribute) {\n    this._attrib_index = ATTRIB[primitiveAttribute.name];\n    this._componentCount = primitiveAttribute.componentCount;\n    this._componentType = primitiveAttribute.componentType;\n    this._stride = primitiveAttribute.stride;\n    this._byteOffset = primitiveAttribute.byteOffset;\n    this._normalized = primitiveAttribute.normalized;\n  }\n}\n\nclass RenderPrimitiveAttributeBuffer {\n  constructor(buffer) {\n    this._buffer = buffer;\n    this._attributes = [];\n  }\n}\n\nclass RenderPrimitive {\n  constructor(primitive) {\n    this._activeFrameId = 0;\n    this._instances = [];\n    this._material = null;\n\n    this.setPrimitive(primitive);\n  }\n\n  setPrimitive(primitive) {\n    this._mode = primitive.mode;\n    this._elementCount = primitive.elementCount;\n    this._promise = null;\n    this._vao = null;\n    this._complete = false;\n    this._attributeBuffers = [];\n    this._attributeMask = 0;\n\n    for (let attribute of primitive.attributes) {\n      this._attributeMask |= ATTRIB_MASK[attribute.name];\n      let renderAttribute = new RenderPrimitiveAttribute(attribute);\n      let foundBuffer = false;\n      for (let attributeBuffer of this._attributeBuffers) {\n        if (attributeBuffer._buffer == attribute.buffer) {\n          attributeBuffer._attributes.push(renderAttribute);\n          foundBuffer = true;\n          break;\n        }\n      }\n      if (!foundBuffer) {\n        let attributeBuffer = new RenderPrimitiveAttributeBuffer(attribute.buffer);\n        attributeBuffer._attributes.push(renderAttribute);\n        this._attributeBuffers.push(attributeBuffer);\n      }\n    }\n\n    this._indexBuffer = null;\n    this._indexByteOffset = 0;\n    this._indexType = 0;\n\n    if (primitive.indexBuffer) {\n      this._indexByteOffset = primitive.indexByteOffset;\n      this._indexType = primitive.indexType;\n      this._indexBuffer = primitive.indexBuffer;\n    }\n\n    if (primitive._min) {\n      this._min = vec3.clone(primitive._min);\n      this._max = vec3.clone(primitive._max);\n    } else {\n      this._min = null;\n      this._max = null;\n    }\n\n    if (this._material != null) {\n      this.waitForComplete(); // To flip the _complete flag.\n    }\n  }\n\n  setRenderMaterial(material) {\n    this._material = material;\n    this._promise = null;\n    this._complete = false;\n\n    if (this._material != null) {\n      this.waitForComplete(); // To flip the _complete flag.\n    }\n  }\n\n  markActive(frameId) {\n    if (this._complete && this._activeFrameId != frameId) {\n      if (this._material) {\n        if (!this._material.markActive(frameId)) {\n          return;\n        }\n      }\n      this._activeFrameId = frameId;\n    }\n  }\n\n  get samplers() {\n    return this._material._samplerDictionary;\n  }\n\n  get uniforms() {\n    return this._material._uniform_dictionary;\n  }\n\n  waitForComplete() {\n    if (!this._promise) {\n      if (!this._material) {\n        return Promise.reject('RenderPrimitive does not have a material');\n      }\n\n      let completionPromises = [];\n\n      for (let attributeBuffer of this._attributeBuffers) {\n        if (!attributeBuffer._buffer._buffer) {\n          completionPromises.push(attributeBuffer._buffer._promise);\n        }\n      }\n\n      if (this._indexBuffer && !this._indexBuffer._buffer) {\n        completionPromises.push(this._indexBuffer._promise);\n      }\n\n      this._promise = Promise.all(completionPromises).then(() => {\n        this._complete = true;\n        return this;\n      });\n    }\n    return this._promise;\n  }\n}\n\nexport class RenderTexture {\n  constructor(texture) {\n    this._texture = texture;\n    this._complete = false;\n    this._activeFrameId = 0;\n    this._activeCallback = null;\n  }\n\n  markActive(frameId) {\n    if (this._activeCallback && this._activeFrameId != frameId) {\n      this._activeFrameId = frameId;\n      this._activeCallback(this);\n    }\n  }\n}\n\nconst inverseMatrix = mat4.create();\n\nfunction setCap(gl, glEnum, cap, prevState, state) {\n  let change = (state & cap) - (prevState & cap);\n  if (!change) {\n    return;\n  }\n\n  if (change > 0) {\n    gl.enable(glEnum);\n  } else {\n    gl.disable(glEnum);\n  }\n}\n\nclass RenderMaterialSampler {\n  constructor(renderer, materialSampler, index) {\n    this._renderer = renderer;\n    this._uniformName = materialSampler._uniformName;\n    this._renderTexture = renderer._getRenderTexture(materialSampler._texture);\n    this._index = index;\n  }\n\n  set texture(value) {\n    this._renderTexture = this._renderer._getRenderTexture(value);\n  }\n}\n\nclass RenderMaterialUniform {\n  constructor(materialUniform) {\n    this._uniformName = materialUniform._uniformName;\n    this._uniform = null;\n    this._length = materialUniform._length;\n    if (materialUniform._value instanceof Array) {\n      this._value = new Float32Array(materialUniform._value);\n    } else {\n      this._value = new Float32Array([materialUniform._value]);\n    }\n  }\n\n  set value(value) {\n    if (this._value.length == 1) {\n      this._value[0] = value;\n    } else {\n      for (let i = 0; i < this._value.length; ++i) {\n        this._value[i] = value[i];\n      }\n    }\n  }\n}\n\nclass RenderMaterial {\n  constructor(renderer, material, program) {\n    this._program = program;\n    this._state = material.state._state;\n    this._activeFrameId = 0;\n    this._completeForActiveFrame = false;\n\n    this._samplerDictionary = {};\n    this._samplers = [];\n    for (let i = 0; i < material._samplers.length; ++i) {\n      let renderSampler = new RenderMaterialSampler(renderer, material._samplers[i], i);\n      this._samplers.push(renderSampler);\n      this._samplerDictionary[renderSampler._uniformName] = renderSampler;\n    }\n\n    this._uniform_dictionary = {};\n    this._uniforms = [];\n    for (let uniform of material._uniforms) {\n      let renderUniform = new RenderMaterialUniform(uniform);\n      this._uniforms.push(renderUniform);\n      this._uniform_dictionary[renderUniform._uniformName] = renderUniform;\n    }\n\n    this._firstBind = true;\n\n    this._renderOrder = material.renderOrder;\n    if (this._renderOrder == RENDER_ORDER.DEFAULT) {\n      if (this._state & CAP.BLEND) {\n        this._renderOrder = RENDER_ORDER.TRANSPARENT;\n      } else {\n        this._renderOrder = RENDER_ORDER.OPAQUE;\n      }\n    }\n  }\n\n  bind(gl) {\n    // First time we do a binding, cache the uniform locations and remove\n    // unused uniforms from the list.\n    if (this._firstBind) {\n      for (let i = 0; i < this._samplers.length;) {\n        let sampler = this._samplers[i];\n        if (!this._program.uniform[sampler._uniformName]) {\n          this._samplers.splice(i, 1);\n          continue;\n        }\n        ++i;\n      }\n\n      for (let i = 0; i < this._uniforms.length;) {\n        let uniform = this._uniforms[i];\n        uniform._uniform = this._program.uniform[uniform._uniformName];\n        if (!uniform._uniform) {\n          this._uniforms.splice(i, 1);\n          continue;\n        }\n        ++i;\n      }\n      this._firstBind = false;\n    }\n\n    for (let sampler of this._samplers) {\n      gl.activeTexture(gl.TEXTURE0 + sampler._index);\n      if (sampler._renderTexture && sampler._renderTexture._complete) {\n        gl.bindTexture(gl.TEXTURE_2D, sampler._renderTexture._texture);\n      } else {\n        gl.bindTexture(gl.TEXTURE_2D, null);\n      }\n    }\n\n    for (let uniform of this._uniforms) {\n      switch (uniform._length) {\n        case 1: gl.uniform1fv(uniform._uniform, uniform._value); break;\n        case 2: gl.uniform2fv(uniform._uniform, uniform._value); break;\n        case 3: gl.uniform3fv(uniform._uniform, uniform._value); break;\n        case 4: gl.uniform4fv(uniform._uniform, uniform._value); break;\n      }\n    }\n  }\n\n  markActive(frameId) {\n    if (this._activeFrameId != frameId) {\n      this._activeFrameId = frameId;\n      this._completeForActiveFrame = true;\n      for (let i = 0; i < this._samplers.length; ++i) {\n        let sampler = this._samplers[i];\n        if (sampler._renderTexture) {\n          if (!sampler._renderTexture._complete) {\n            this._completeForActiveFrame = false;\n            break;\n          }\n          sampler._renderTexture.markActive(frameId);\n        }\n      }\n    }\n    return this._completeForActiveFrame;\n  }\n\n  // Material State fetchers\n  get cullFace() {\n    return !!(this._state & CAP.CULL_FACE);\n  }\n  get blend() {\n    return !!(this._state & CAP.BLEND);\n  }\n  get depthTest() {\n    return !!(this._state & CAP.DEPTH_TEST);\n  }\n  get stencilTest() {\n    return !!(this._state & CAP.STENCIL_TEST);\n  }\n  get colorMask() {\n    return !!(this._state & CAP.COLOR_MASK);\n  }\n  get depthMask() {\n    return !!(this._state & CAP.DEPTH_MASK);\n  }\n  get stencilMask() {\n    return !!(this._state & CAP.STENCIL_MASK);\n  }\n  get depthFunc() {\n    return ((this._state & MAT_STATE.DEPTH_FUNC_RANGE) >> MAT_STATE.DEPTH_FUNC_SHIFT) + GL.NEVER;\n  }\n  get blendFuncSrc() {\n    return stateToBlendFunc(this._state, MAT_STATE.BLEND_SRC_RANGE, MAT_STATE.BLEND_SRC_SHIFT);\n  }\n  get blendFuncDst() {\n    return stateToBlendFunc(this._state, MAT_STATE.BLEND_DST_RANGE, MAT_STATE.BLEND_DST_SHIFT);\n  }\n\n  // Only really for use from the renderer\n  _capsDiff(otherState) {\n    return (otherState & MAT_STATE.CAPS_RANGE) ^ (this._state & MAT_STATE.CAPS_RANGE);\n  }\n\n  _blendDiff(otherState) {\n    if (!(this._state & CAP.BLEND)) {\n      return 0;\n    }\n    return (otherState & MAT_STATE.BLEND_FUNC_RANGE) ^ (this._state & MAT_STATE.BLEND_FUNC_RANGE);\n  }\n\n  _depthFuncDiff(otherState) {\n    if (!(this._state & CAP.DEPTH_TEST)) {\n      return 0;\n    }\n    return (otherState & MAT_STATE.DEPTH_FUNC_RANGE) ^ (this._state & MAT_STATE.DEPTH_FUNC_RANGE);\n  }\n}\n\nexport class Renderer {\n  constructor(gl) {\n    this._gl = gl || createWebGLContext();\n    this._frameId = 0;\n    this._programCache = {};\n    this._textureCache = {};\n    this._renderPrimitives = Array(RENDER_ORDER.DEFAULT);\n    this._cameraPositions = [];\n\n    this._vaoExt = gl.getExtension('OES_vertex_array_object');\n\n    let fragHighPrecision = gl.getShaderPrecisionFormat(gl.FRAGMENT_SHADER, gl.HIGH_FLOAT);\n    this._defaultFragPrecision = fragHighPrecision.precision > 0 ? 'highp' : 'mediump';\n\n    this._depthMaskNeedsReset = false;\n    this._colorMaskNeedsReset = false;\n\n    this._globalLightColor = vec3.clone(DEF_LIGHT_COLOR);\n    this._globalLightDir = vec3.clone(DEF_LIGHT_DIR);\n  }\n\n  get gl() {\n    return this._gl;\n  }\n\n  set globalLightColor(value) {\n    vec3.copy(this._globalLightColor, value);\n  }\n\n  get globalLightColor() {\n    return vec3.clone(this._globalLightColor);\n  }\n\n  set globalLightDir(value) {\n    vec3.copy(this._globalLightDir, value);\n  }\n\n  get globalLightDir() {\n    return vec3.clone(this._globalLightDir);\n  }\n\n  createRenderBuffer(target, data, usage = GL.STATIC_DRAW) {\n    let gl = this._gl;\n    let glBuffer = gl.createBuffer();\n\n    if (data instanceof Promise) {\n      let renderBuffer = new RenderBuffer(target, usage, data.then((data) => {\n        gl.bindBuffer(target, glBuffer);\n        gl.bufferData(target, data, usage);\n        renderBuffer._length = data.byteLength;\n        return glBuffer;\n      }));\n      return renderBuffer;\n    } else {\n      gl.bindBuffer(target, glBuffer);\n      gl.bufferData(target, data, usage);\n      return new RenderBuffer(target, usage, glBuffer, data.byteLength);\n    }\n  }\n\n  updateRenderBuffer(buffer, data, offset = 0) {\n    if (buffer._buffer) {\n      let gl = this._gl;\n      gl.bindBuffer(buffer._target, buffer._buffer);\n      if (offset == 0 && buffer._length == data.byteLength) {\n        gl.bufferData(buffer._target, data, buffer._usage);\n      } else {\n        gl.bufferSubData(buffer._target, offset, data);\n      }\n    } else {\n      buffer.waitForComplete().then((buffer) => {\n        this.updateRenderBuffer(buffer, data, offset);\n      });\n    }\n  }\n\n  createRenderPrimitive(primitive, material) {\n    let renderPrimitive = new RenderPrimitive(primitive);\n\n    let program = this._getMaterialProgram(material, renderPrimitive);\n    let renderMaterial = new RenderMaterial(this, material, program);\n    renderPrimitive.setRenderMaterial(renderMaterial);\n\n    if (!this._renderPrimitives[renderMaterial._renderOrder]) {\n      this._renderPrimitives[renderMaterial._renderOrder] = [];\n    }\n\n    this._renderPrimitives[renderMaterial._renderOrder].push(renderPrimitive);\n\n    return renderPrimitive;\n  }\n\n  createMesh(primitive, material) {\n    let meshNode = new Node();\n    meshNode.addRenderPrimitive(this.createRenderPrimitive(primitive, material));\n    return meshNode;\n  }\n\n  drawViews(views, rootNode) {\n    if (!rootNode) {\n      return;\n    }\n\n    let gl = this._gl;\n    this._frameId++;\n\n    rootNode.markActive(this._frameId);\n\n    // If there's only one view then flip the algorithm a bit so that we're only\n    // setting the viewport once.\n    if (views.length == 1 && views[0].viewport) {\n      let vp = views[0].viewport;\n      this._gl.viewport(vp.x, vp.y, vp.width, vp.height);\n    }\n\n    // Get the positions of the 'camera' for each view matrix.\n    for (let i = 0; i < views.length; ++i) {\n      mat4.invert(inverseMatrix, views[i].viewMatrix);\n\n      if (this._cameraPositions.length <= i) {\n        this._cameraPositions.push(vec3.create());\n      }\n      let cameraPosition = this._cameraPositions[i];\n      vec3.set(cameraPosition, 0, 0, 0);\n      vec3.transformMat4(cameraPosition, cameraPosition, inverseMatrix);\n    }\n\n    // Draw each set of render primitives in order\n    for (let renderPrimitives of this._renderPrimitives) {\n      if (renderPrimitives && renderPrimitives.length) {\n        this._drawRenderPrimitiveSet(views, renderPrimitives);\n      }\n    }\n\n    if (this._vaoExt) {\n      this._vaoExt.bindVertexArrayOES(null);\n    }\n\n    if (this._depthMaskNeedsReset) {\n      gl.depthMask(true);\n    }\n    if (this._colorMaskNeedsReset) {\n      gl.colorMask(true, true, true, true);\n    }\n  }\n\n  _drawRenderPrimitiveSet(views, renderPrimitives) {\n    let gl = this._gl;\n    let program = null;\n    let material = null;\n    let attribMask = 0;\n\n    // Loop through every primitive known to the renderer.\n    for (let primitive of renderPrimitives) {\n      // Skip over those that haven't been marked as active for this frame.\n      if (primitive._activeFrameId != this._frameId) {\n        continue;\n      }\n\n      // Bind the primitive material's program if it's different than the one we\n      // were using for the previous primitive.\n      // TODO: The ording of this could be more efficient.\n      if (program != primitive._material._program) {\n        program = primitive._material._program;\n        program.use();\n\n        if (program.uniform.LIGHT_DIRECTION) {\n          gl.uniform3fv(program.uniform.LIGHT_DIRECTION, this._globalLightDir);\n        }\n\n        if (program.uniform.LIGHT_COLOR) {\n          gl.uniform3fv(program.uniform.LIGHT_COLOR, this._globalLightColor);\n        }\n\n        if (views.length == 1) {\n          gl.uniformMatrix4fv(program.uniform.PROJECTION_MATRIX, false, views[0].projectionMatrix);\n          gl.uniformMatrix4fv(program.uniform.VIEW_MATRIX, false, views[0].viewMatrix);\n          gl.uniform3fv(program.uniform.CAMERA_POSITION, this._cameraPositions[0]);\n          gl.uniform1i(program.uniform.EYE_INDEX, views[0].eyeIndex);\n        }\n      }\n\n      if (material != primitive._material) {\n        this._bindMaterialState(primitive._material, material);\n        primitive._material.bind(gl, program, material);\n        material = primitive._material;\n      }\n\n      if (this._vaoExt) {\n        if (primitive._vao) {\n          this._vaoExt.bindVertexArrayOES(primitive._vao);\n        } else {\n          primitive._vao = this._vaoExt.createVertexArrayOES();\n          this._vaoExt.bindVertexArrayOES(primitive._vao);\n          this._bindPrimitive(primitive);\n        }\n      } else {\n        this._bindPrimitive(primitive, attribMask);\n        attribMask = primitive._attributeMask;\n      }\n\n      for (let i = 0; i < views.length; ++i) {\n        let view = views[i];\n        if (views.length > 1) {\n          if (view.viewport) {\n            let vp = view.viewport;\n            gl.viewport(vp.x, vp.y, vp.width, vp.height);\n          }\n          gl.uniformMatrix4fv(program.uniform.PROJECTION_MATRIX, false, view.projectionMatrix);\n          gl.uniformMatrix4fv(program.uniform.VIEW_MATRIX, false, view.viewMatrix);\n          gl.uniform3fv(program.uniform.CAMERA_POSITION, this._cameraPositions[i]);\n          gl.uniform1i(program.uniform.EYE_INDEX, view.eyeIndex);\n        }\n\n        for (let instance of primitive._instances) {\n          if (instance._activeFrameId != this._frameId) {\n            continue;\n          }\n\n          gl.uniformMatrix4fv(program.uniform.MODEL_MATRIX, false, instance.worldMatrix);\n\n          if (primitive._indexBuffer) {\n            gl.drawElements(primitive._mode, primitive._elementCount,\n                primitive._indexType, primitive._indexByteOffset);\n          } else {\n            gl.drawArrays(primitive._mode, 0, primitive._elementCount);\n          }\n        }\n      }\n    }\n  }\n\n  _getRenderTexture(texture) {\n    if (!texture) {\n      return null;\n    }\n\n    let key = texture.textureKey;\n    if (!key) {\n      throw new Error('Texure does not have a valid key');\n    }\n\n    if (key in this._textureCache) {\n      return this._textureCache[key];\n    } else {\n      let gl = this._gl;\n      let textureHandle = gl.createTexture();\n\n      let renderTexture = new RenderTexture(textureHandle);\n      this._textureCache[key] = renderTexture;\n\n      if (texture instanceof DataTexture) {\n        gl.bindTexture(gl.TEXTURE_2D, textureHandle);\n        gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.width, texture.height,\n                                     0, texture.format, texture._type, texture._data);\n        this._setSamplerParameters(texture);\n        renderTexture._complete = true;\n      } else {\n        texture.waitForComplete().then(() => {\n          gl.bindTexture(gl.TEXTURE_2D, textureHandle);\n          gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.format, gl.UNSIGNED_BYTE, texture.source);\n          this._setSamplerParameters(texture);\n          renderTexture._complete = true;\n\n          if (texture instanceof VideoTexture) {\n            // Once the video starts playing, set a callback to update it's\n            // contents each frame.\n            texture._video.addEventListener('playing', () => {\n              renderTexture._activeCallback = () => {\n                if (!texture._video.paused && !texture._video.waiting) {\n                  gl.bindTexture(gl.TEXTURE_2D, textureHandle);\n                  gl.texImage2D(gl.TEXTURE_2D, 0, texture.format, texture.format, gl.UNSIGNED_BYTE, texture.source);\n                }\n              };\n            });\n          }\n        });\n      }\n\n      return renderTexture;\n    }\n  }\n\n  _setSamplerParameters(texture) {\n    let gl = this._gl;\n\n    let sampler = texture.sampler;\n    let powerOfTwo = isPowerOfTwo(texture.width) && isPowerOfTwo(texture.height);\n    let mipmap = powerOfTwo && texture.mipmap;\n    if (mipmap) {\n      gl.generateMipmap(gl.TEXTURE_2D);\n    }\n\n    let minFilter = sampler.minFilter || (mipmap ? gl.LINEAR_MIPMAP_LINEAR : gl.LINEAR);\n    let wrapS = sampler.wrapS || (powerOfTwo ? gl.REPEAT : gl.CLAMP_TO_EDGE);\n    let wrapT = sampler.wrapT || (powerOfTwo ? gl.REPEAT : gl.CLAMP_TO_EDGE);\n\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, sampler.magFilter || gl.LINEAR);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, minFilter);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, wrapS);\n    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, wrapT);\n  }\n\n  _getProgramKey(name, defines) {\n    let key = `${name}:`;\n\n    for (let define in defines) {\n      key += `${define}=${defines[define]},`;\n    }\n\n    return key;\n  }\n\n  _getMaterialProgram(material, renderPrimitive) {\n    let materialName = material.materialName;\n    let vertexSource = material.vertexSource;\n    let fragmentSource = material.fragmentSource;\n\n    // These should always be defined for every material\n    if (materialName == null) {\n      throw new Error('Material does not have a name');\n    }\n    if (vertexSource == null) {\n      throw new Error(`Material \"${materialName}\" does not have a vertex source`);\n    }\n    if (fragmentSource == null) {\n      throw new Error(`Material \"${materialName}\" does not have a fragment source`);\n    }\n\n    let defines = material.getProgramDefines(renderPrimitive);\n    let key = this._getProgramKey(materialName, defines);\n\n    if (key in this._programCache) {\n      return this._programCache[key];\n    } else {\n      let multiview = false; // Handle this dynamically later\n      let fullVertexSource = vertexSource;\n      fullVertexSource += multiview ? VERTEX_SHADER_MULTI_ENTRY :\n                                      VERTEX_SHADER_SINGLE_ENTRY;\n\n      let precisionMatch = fragmentSource.match(PRECISION_REGEX);\n      let fragPrecisionHeader = precisionMatch ? '' : `precision ${this._defaultFragPrecision} float;\\n`;\n\n      let fullFragmentSource = fragPrecisionHeader + fragmentSource;\n      fullFragmentSource += FRAGMENT_SHADER_ENTRY;\n\n      let program = new Program(this._gl, fullVertexSource, fullFragmentSource, ATTRIB, defines);\n      this._programCache[key] = program;\n\n      program.onNextUse((program) => {\n        // Bind the samplers to the right texture index. This is constant for\n        // the lifetime of the program.\n        for (let i = 0; i < material._samplers.length; ++i) {\n          let sampler = material._samplers[i];\n          let uniform = program.uniform[sampler._uniformName];\n          if (uniform) {\n            this._gl.uniform1i(uniform, i);\n          }\n        }\n      });\n\n      return program;\n    }\n  }\n\n  _bindPrimitive(primitive, attribMask) {\n    let gl = this._gl;\n\n    // If the active attributes have changed then update the active set.\n    if (attribMask != primitive._attributeMask) {\n      for (let attrib in ATTRIB) {\n        if (primitive._attributeMask & ATTRIB_MASK[attrib]) {\n          gl.enableVertexAttribArray(ATTRIB[attrib]);\n        } else {\n          gl.disableVertexAttribArray(ATTRIB[attrib]);\n        }\n      }\n    }\n\n    // Bind the primitive attributes and indices.\n    for (let attributeBuffer of primitive._attributeBuffers) {\n      gl.bindBuffer(gl.ARRAY_BUFFER, attributeBuffer._buffer._buffer);\n      for (let attrib of attributeBuffer._attributes) {\n        gl.vertexAttribPointer(\n            attrib._attrib_index, attrib._componentCount, attrib._componentType,\n            attrib._normalized, attrib._stride, attrib._byteOffset);\n      }\n    }\n\n    if (primitive._indexBuffer) {\n      gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, primitive._indexBuffer._buffer);\n    } else {\n      gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, null);\n    }\n  }\n\n  _bindMaterialState(material, prevMaterial = null) {\n    let gl = this._gl;\n\n    let state = material._state;\n    let prevState = prevMaterial ? prevMaterial._state : ~state;\n\n    // Return early if both materials use identical state\n    if (state == prevState) {\n      return;\n    }\n\n    // Any caps bits changed?\n    if (material._capsDiff(prevState)) {\n      setCap(gl, gl.CULL_FACE, CAP.CULL_FACE, prevState, state);\n      setCap(gl, gl.BLEND, CAP.BLEND, prevState, state);\n      setCap(gl, gl.DEPTH_TEST, CAP.DEPTH_TEST, prevState, state);\n      setCap(gl, gl.STENCIL_TEST, CAP.STENCIL_TEST, prevState, state);\n\n      let colorMaskChange = (state & CAP.COLOR_MASK) - (prevState & CAP.COLOR_MASK);\n      if (colorMaskChange) {\n        let mask = colorMaskChange > 1;\n        this._colorMaskNeedsReset = !mask;\n        gl.colorMask(mask, mask, mask, mask);\n      }\n\n      let depthMaskChange = (state & CAP.DEPTH_MASK) - (prevState & CAP.DEPTH_MASK);\n      if (depthMaskChange) {\n        this._depthMaskNeedsReset = !(depthMaskChange > 1);\n        gl.depthMask(depthMaskChange > 1);\n      }\n\n      let stencilMaskChange = (state & CAP.STENCIL_MASK) - (prevState & CAP.STENCIL_MASK);\n      if (stencilMaskChange) {\n        gl.stencilMask(stencilMaskChange > 1);\n      }\n    }\n\n    // Blending enabled and blend func changed?\n    if (material._blendDiff(prevState)) {\n      gl.blendFunc(material.blendFuncSrc, material.blendFuncDst);\n    }\n\n    // Depth testing enabled and depth func changed?\n    if (material._depthFuncDiff(prevState)) {\n      gl.depthFunc(material.depthFunc);\n    }\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nconst GL = WebGLRenderingContext; // For enums\n\nexport class TextureSampler {\n  constructor() {\n    this.minFilter = null;\n    this.magFilter = null;\n    this.wrapS = null;\n    this.wrapT = null;\n  }\n}\n\nexport class Texture {\n  constructor() {\n    this.sampler = new TextureSampler();\n    this.mipmap = true;\n    // TODO: Anisotropy\n  }\n\n  get format() {\n    return GL.RGBA;\n  }\n\n  get width() {\n    return 0;\n  }\n\n  get height() {\n    return 0;\n  }\n\n  get textureKey() {\n    return null;\n  }\n}\n\nexport class ImageTexture extends Texture {\n  constructor(img) {\n    super();\n\n    this._img = img;\n    this._imgBitmap = null;\n\n    if (img.src && img.complete) {\n      if (img.naturalWidth) {\n        this._promise = this._finishImage();\n      } else {\n        this._promise = Promise.reject('Image provided had failed to load.');\n      }\n    } else {\n      this._promise = new Promise((resolve, reject) => {\n        img.addEventListener('load', () => resolve(this._finishImage()));\n        img.addEventListener('error', reject);\n      });\n    }\n  }\n\n  _finishImage() {\n    if (window.createImageBitmap) {\n      return window.createImageBitmap(this._img).then((imgBitmap) => {\n        this._imgBitmap = imgBitmap;\n        return Promise.resolve(this);\n      });\n    }\n    return Promise.resolve(this);\n  }\n\n  get format() {\n    // TODO: Can be RGB in some cases.\n    return GL.RGBA;\n  }\n\n  get width() {\n    return this._img.width;\n  }\n\n  get height() {\n    return this._img.height;\n  }\n\n  waitForComplete() {\n    return this._promise;\n  }\n\n  get textureKey() {\n    return this._img.src;\n  }\n\n  get source() {\n    return this._imgBitmap || this._img;\n  }\n}\n\nexport class UrlTexture extends ImageTexture {\n  constructor(url) {\n    let img = new Image();\n    super(img);\n    img.src = url;\n  }\n}\n\nexport class BlobTexture extends ImageTexture {\n  constructor(blob) {\n    let img = new Image();\n    super(img);\n    img.src = window.URL.createObjectURL(blob);\n  }\n}\n\nexport class VideoTexture extends Texture {\n  constructor(video) {\n    super();\n\n    this._video = video;\n\n    if (video.readyState >= 2) {\n      this._promise = Promise.resolve(this);\n    } else if (video.error) {\n      this._promise = Promise.reject(video.error);\n    } else {\n      this._promise = new Promise((resolve, reject) => {\n        video.addEventListener('loadeddata', () => resolve(this));\n        video.addEventListener('error', reject);\n      });\n    }\n  }\n\n  get format() {\n    // TODO: Can be RGB in some cases.\n    return GL.RGBA;\n  }\n\n  get width() {\n    return this._video.videoWidth;\n  }\n\n  get height() {\n    return this._video.videoHeight;\n  }\n\n  waitForComplete() {\n    return this._promise;\n  }\n\n  get textureKey() {\n    return this._video.src;\n  }\n\n  get source() {\n    return this._video;\n  }\n}\n\nlet nextDataTextureIndex = 0;\n\nexport class DataTexture extends Texture {\n  constructor(data, width, height, format = GL.RGBA, type = GL.UNSIGNED_BYTE) {\n    super();\n\n    this._data = data;\n    this._width = width;\n    this._height = height;\n    this._format = format;\n    this._type = type;\n    this._key = `DATA_${nextDataTextureIndex}`;\n    nextDataTextureIndex++;\n  }\n\n  get format() {\n    return this._format;\n  }\n\n  get width() {\n    return this._width;\n  }\n\n  get height() {\n    return this._height;\n  }\n\n  get textureKey() {\n    return this._key;\n  }\n}\n\nexport class ColorTexture extends DataTexture {\n  constructor(r, g, b, a) {\n    let colorData = new Uint8Array([r*255.0, g*255.0, b*255.0, a*255.0]);\n    super(colorData, 1, 1);\n\n    this.mipmap = false;\n    this._key = `COLOR_${colorData[0]}_${colorData[1]}_${colorData[2]}_${colorData[3]}`;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nexport {Node} from './core/node.js';\nexport {Renderer, createWebGLContext} from './core/renderer.js';\nexport {UrlTexture} from './core/texture.js';\n\nexport {PrimitiveStream} from './geometry/primitive-stream.js';\nexport {BoxBuilder} from './geometry/box-builder.js';\n\nexport {PbrMaterial} from './materials/pbr.js';\n\nexport {mat4, mat3, vec3, vec4, quat} from './math/gl-matrix.js';\n\nexport {BoundsRenderer} from './nodes/bounds-renderer.js';\nexport {ButtonNode} from './nodes/button.js';\nexport {DropShadowNode} from './nodes/drop-shadow.js';\nexport {CubeSeaNode} from './nodes/cube-sea.js';\nexport {Gltf2Node} from './nodes/gltf2.js';\nexport {SkyboxNode} from './nodes/skybox.js';\nexport {VideoNode} from './nodes/video.js';\n\nexport {WebXRView, Scene} from './scenes/scene.js';\n\nexport {FallbackHelper} from './util/fallback-helper.js';\nexport {QueryArgs} from './util/query-args.js';\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {GeometryBuilderBase} from './primitive-stream.js';\n\nexport class BoxBuilder extends GeometryBuilderBase {\n  pushBox(min, max) {\n    let stream = this.primitiveStream;\n\n    let w = max[0] - min[0];\n    let h = max[1] - min[1];\n    let d = max[2] - min[2];\n\n    let wh = w * 0.5;\n    let hh = h * 0.5;\n    let dh = d * 0.5;\n\n    let cx = min[0] + wh;\n    let cy = min[1] + hh;\n    let cz = min[2] + dh;\n\n    stream.startGeometry();\n\n    // Bottom\n    let idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+1, idx+2);\n    stream.pushTriangle(idx, idx+2, idx+3);\n\n    //                 X       Y       Z      U    V    NX    NY   NZ\n    stream.pushVertex(-wh+cx, -hh+cy, -dh+cz, 0.0, 1.0, 0.0, -1.0, 0.0);\n    stream.pushVertex(+wh+cx, -hh+cy, -dh+cz, 1.0, 1.0, 0.0, -1.0, 0.0);\n    stream.pushVertex(+wh+cx, -hh+cy, +dh+cz, 1.0, 0.0, 0.0, -1.0, 0.0);\n    stream.pushVertex(-wh+cx, -hh+cy, +dh+cz, 0.0, 0.0, 0.0, -1.0, 0.0);\n\n    // Top\n    idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+2, idx+1);\n    stream.pushTriangle(idx, idx+3, idx+2);\n\n    stream.pushVertex(-wh+cx, +hh+cy, -dh+cz, 0.0, 0.0, 0.0, 1.0, 0.0);\n    stream.pushVertex(+wh+cx, +hh+cy, -dh+cz, 1.0, 0.0, 0.0, 1.0, 0.0);\n    stream.pushVertex(+wh+cx, +hh+cy, +dh+cz, 1.0, 1.0, 0.0, 1.0, 0.0);\n    stream.pushVertex(-wh+cx, +hh+cy, +dh+cz, 0.0, 1.0, 0.0, 1.0, 0.0);\n\n    // Left\n    idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+2, idx+1);\n    stream.pushTriangle(idx, idx+3, idx+2);\n\n    stream.pushVertex(-wh+cx, -hh+cy, -dh+cz, 0.0, 1.0, -1.0, 0.0, 0.0);\n    stream.pushVertex(-wh+cx, +hh+cy, -dh+cz, 0.0, 0.0, -1.0, 0.0, 0.0);\n    stream.pushVertex(-wh+cx, +hh+cy, +dh+cz, 1.0, 0.0, -1.0, 0.0, 0.0);\n    stream.pushVertex(-wh+cx, -hh+cy, +dh+cz, 1.0, 1.0, -1.0, 0.0, 0.0);\n\n    // Right\n    idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+1, idx+2);\n    stream.pushTriangle(idx, idx+2, idx+3);\n\n    stream.pushVertex(+wh+cx, -hh+cy, -dh+cz, 1.0, 1.0, 1.0, 0.0, 0.0);\n    stream.pushVertex(+wh+cx, +hh+cy, -dh+cz, 1.0, 0.0, 1.0, 0.0, 0.0);\n    stream.pushVertex(+wh+cx, +hh+cy, +dh+cz, 0.0, 0.0, 1.0, 0.0, 0.0);\n    stream.pushVertex(+wh+cx, -hh+cy, +dh+cz, 0.0, 1.0, 1.0, 0.0, 0.0);\n\n    // Back\n    idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+2, idx+1);\n    stream.pushTriangle(idx, idx+3, idx+2);\n\n    stream.pushVertex(-wh+cx, -hh+cy, -dh+cz, 1.0, 1.0, 0.0, 0.0, -1.0);\n    stream.pushVertex(+wh+cx, -hh+cy, -dh+cz, 0.0, 1.0, 0.0, 0.0, -1.0);\n    stream.pushVertex(+wh+cx, +hh+cy, -dh+cz, 0.0, 0.0, 0.0, 0.0, -1.0);\n    stream.pushVertex(-wh+cx, +hh+cy, -dh+cz, 1.0, 0.0, 0.0, 0.0, -1.0);\n\n    // Front\n    idx = stream.nextVertexIndex;\n    stream.pushTriangle(idx, idx+1, idx+2);\n    stream.pushTriangle(idx, idx+2, idx+3);\n\n    stream.pushVertex(-wh+cx, -hh+cy, +dh+cz, 0.0, 1.0, 0.0, 0.0, 1.0);\n    stream.pushVertex(+wh+cx, -hh+cy, +dh+cz, 1.0, 1.0, 0.0, 0.0, 1.0);\n    stream.pushVertex(+wh+cx, +hh+cy, +dh+cz, 1.0, 0.0, 0.0, 0.0, 1.0);\n    stream.pushVertex(-wh+cx, +hh+cy, +dh+cz, 0.0, 0.0, 0.0, 0.0, 1.0);\n\n    stream.endGeometry();\n  }\n\n  pushCube(center = [0, 0, 0], size = 1.0) {\n    let hs = size * 0.5;\n    this.pushBox([center[0] - hs, center[1] - hs, center[2] - hs],\n                 [center[0] + hs, center[1] + hs, center[2] + hs]);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {mat3, vec3} from '../math/gl-matrix.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nconst tempVec3 = vec3.create();\n\nexport class PrimitiveStream {\n  constructor(options) {\n    this._vertices = [];\n    this._indices = [];\n\n    this._geometryStarted = false;\n\n    this._vertexOffset = 0;\n    this._vertexIndex = 0;\n    this._highIndex = 0;\n\n    this._flipWinding = false;\n    this._invertNormals = false;\n    this._transform = null;\n    this._normalTransform = null;\n    this._min = null;\n    this._max = null;\n  }\n\n  set flipWinding(value) {\n    if (this._geometryStarted) {\n      throw new Error(`Cannot change flipWinding before ending the current geometry.`);\n    }\n    this._flipWinding = value;\n  }\n\n  get flipWinding() {\n    this._flipWinding;\n  }\n\n  set invertNormals(value) {\n    if (this._geometryStarted) {\n      throw new Error(`Cannot change invertNormals before ending the current geometry.`);\n    }\n    this._invertNormals = value;\n  }\n\n  get invertNormals() {\n    this._invertNormals;\n  }\n\n  set transform(value) {\n    if (this._geometryStarted) {\n      throw new Error(`Cannot change transform before ending the current geometry.`);\n    }\n    this._transform = value;\n    if (this._transform) {\n      if (!this._normalTransform) {\n        this._normalTransform = mat3.create();\n      }\n      mat3.fromMat4(this._normalTransform, this._transform);\n    }\n  }\n\n  get transform() {\n    this._transform;\n  }\n\n  startGeometry() {\n    if (this._geometryStarted) {\n      throw new Error(`Attempted to start a new geometry before the previous one was ended.`);\n    }\n\n    this._geometryStarted = true;\n    this._vertexIndex = 0;\n    this._highIndex = 0;\n  }\n\n  endGeometry() {\n    if (!this._geometryStarted) {\n      throw new Error(`Attempted to end a geometry before one was started.`);\n    }\n\n    if (this._highIndex >= this._vertexIndex) {\n      throw new Error(`Geometry contains indices that are out of bounds.\n                       (Contains an index of ${this._highIndex} when the vertex count is ${this._vertexIndex})`);\n    }\n\n    this._geometryStarted = false;\n    this._vertexOffset += this._vertexIndex;\n\n    // TODO: Anything else need to be done to finish processing here?\n  }\n\n  pushVertex(x, y, z, u = 0, v = 0, nx = 0, ny = 0, nz = 1) {\n    if (!this._geometryStarted) {\n      throw new Error(`Cannot push vertices before calling startGeometry().`);\n    }\n\n    // Transform the incoming vertex if we have a transformation matrix\n    if (this._transform) {\n      tempVec3[0] = x;\n      tempVec3[1] = y;\n      tempVec3[2] = z;\n      vec3.transformMat4(tempVec3, tempVec3, this._transform);\n      x = tempVec3[0];\n      y = tempVec3[1];\n      z = tempVec3[2];\n\n      tempVec3[0] = nx;\n      tempVec3[1] = ny;\n      tempVec3[2] = nz;\n      vec3.transformMat3(tempVec3, tempVec3, this._normalTransform);\n      nx = tempVec3[0];\n      ny = tempVec3[1];\n      nz = tempVec3[2];\n    }\n\n    if (this._invertNormals) {\n      nx *= -1.0;\n      ny *= -1.0;\n      nz *= -1.0;\n    }\n\n    this._vertices.push(x, y, z, u, v, nx, ny, nz);\n\n    if (this._min) {\n      this._min[0] = Math.min(this._min[0], x);\n      this._min[1] = Math.min(this._min[1], y);\n      this._min[2] = Math.min(this._min[2], z);\n      this._max[0] = Math.max(this._max[0], x);\n      this._max[1] = Math.max(this._max[1], y);\n      this._max[2] = Math.max(this._max[2], z);\n    } else {\n      this._min = vec3.fromValues(x, y, z);\n      this._max = vec3.fromValues(x, y, z);\n    }\n\n    return this._vertexIndex++;\n  }\n\n  get nextVertexIndex() {\n    return this._vertexIndex;\n  }\n\n  pushTriangle(idxA, idxB, idxC) {\n    if (!this._geometryStarted) {\n      throw new Error(`Cannot push triangles before calling startGeometry().`);\n    }\n\n    this._highIndex = Math.max(this._highIndex, idxA, idxB, idxC);\n\n    idxA += this._vertexOffset;\n    idxB += this._vertexOffset;\n    idxC += this._vertexOffset;\n\n    if (this._flipWinding) {\n      this._indices.push(idxC, idxB, idxA);\n    } else {\n      this._indices.push(idxA, idxB, idxC);\n    }\n  }\n\n  clear() {\n    if (this._geometryStarted) {\n      throw new Error(`Cannot clear before ending the current geometry.`);\n    }\n\n    this._vertices = [];\n    this._indices = [];\n    this._vertexOffset = 0;\n    this._min = null;\n    this._max = null;\n  }\n\n  finishPrimitive(renderer) {\n    if (!this._vertexOffset) {\n      throw new Error(`Attempted to call finishPrimitive() before creating any geometry.`);\n    }\n\n    let vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(this._vertices));\n    let indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(this._indices));\n\n    let attribs = [\n      new PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 32, 0),\n      new PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 32, 12),\n      new PrimitiveAttribute('NORMAL', vertexBuffer, 3, GL.FLOAT, 32, 20),\n    ];\n\n    let primitive = new Primitive(attribs, this._indices.length);\n    primitive.setIndexBuffer(indexBuffer);\n    primitive.setBounds(this._min, this._max);\n\n    return primitive;\n  }\n}\n\nexport class GeometryBuilderBase {\n  constructor(primitiveStream) {\n    if (primitiveStream) {\n      this._stream = primitiveStream;\n    } else {\n      this._stream = new PrimitiveStream();\n    }\n  }\n\n  set primitiveStream(value) {\n    this._stream = value;\n  }\n\n  get primitiveStream() {\n    return this._stream;\n  }\n\n  finishPrimitive(renderer) {\n    return this._stream.finishPrimitive(renderer);\n  }\n\n  clear() {\n    this._stream.clear();\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {PbrMaterial} from '../materials/pbr.js';\nimport {Node} from '../core/node.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {ImageTexture, ColorTexture} from '../core/texture.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nconst GLB_MAGIC = 0x46546C67;\nconst CHUNK_TYPE = {\n  JSON: 0x4E4F534A,\n  BIN: 0x004E4942,\n};\n\nfunction isAbsoluteUri(uri) {\n  let absRegEx = new RegExp('^'+window.location.protocol, 'i');\n  return !!uri.match(absRegEx);\n}\n\nfunction isDataUri(uri) {\n  let dataRegEx = /^data:/;\n  return !!uri.match(dataRegEx);\n}\n\nfunction resolveUri(uri, baseUrl) {\n  if (isAbsoluteUri(uri) || isDataUri(uri)) {\n      return uri;\n  }\n  return baseUrl + uri;\n}\n\nfunction getComponentCount(type) {\n  switch (type) {\n    case 'SCALAR': return 1;\n    case 'VEC2': return 2;\n    case 'VEC3': return 3;\n    case 'VEC4': return 4;\n    default: return 0;\n  }\n}\n\n/**\n * Gltf2SceneLoader\n * Loads glTF 2.0 scenes into a renderable node tree.\n */\n\nexport class Gltf2Loader {\n  constructor(renderer) {\n    this.renderer = renderer;\n    this._gl = renderer._gl;\n  }\n\n  loadFromUrl(url) {\n    return fetch(url)\n        .then((response) => {\n          let i = url.lastIndexOf('/');\n          let baseUrl = (i !== 0) ? url.substring(0, i + 1) : '';\n\n          if (url.endsWith('.gltf')) {\n            return response.json().then((json) => {\n              return this.loadFromJson(json, baseUrl);\n            });\n          } else if (url.endsWith('.glb')) {\n            return response.arrayBuffer().then((arrayBuffer) => {\n              return this.loadFromBinary(arrayBuffer, baseUrl);\n            });\n          } else {\n            throw new Error('Unrecognized file extension');\n          }\n        });\n  }\n\n  loadFromBinary(arrayBuffer, baseUrl) {\n    let headerView = new DataView(arrayBuffer, 0, 12);\n    let magic = headerView.getUint32(0, true);\n    let version = headerView.getUint32(4, true);\n    let length = headerView.getUint32(8, true);\n\n    if (magic != GLB_MAGIC) {\n      throw new Error('Invalid magic string in binary header.');\n    }\n\n    if (version != 2) {\n      throw new Error('Incompatible version in binary header.');\n    }\n\n    let chunks = {};\n    let chunkOffset = 12;\n    while (chunkOffset < length) {\n      let chunkHeaderView = new DataView(arrayBuffer, chunkOffset, 8);\n      let chunkLength = chunkHeaderView.getUint32(0, true);\n      let chunkType = chunkHeaderView.getUint32(4, true);\n      chunks[chunkType] = arrayBuffer.slice(chunkOffset + 8, chunkOffset + 8 + chunkLength);\n      chunkOffset += chunkLength + 8;\n    }\n\n    if (!chunks[CHUNK_TYPE.JSON]) {\n      throw new Error('File contained no json chunk.');\n    }\n\n    let decoder = new TextDecoder('utf-8');\n    let jsonString = decoder.decode(chunks[CHUNK_TYPE.JSON]);\n    let json = JSON.parse(jsonString);\n    return this.loadFromJson(json, baseUrl, chunks[CHUNK_TYPE.BIN]);\n  }\n\n  loadFromJson(json, baseUrl, binaryChunk) {\n    if (!json.asset) {\n      throw new Error('Missing asset description.');\n    }\n\n    if (json.asset.minVersion != '2.0' && json.asset.version != '2.0') {\n      throw new Error('Incompatible asset version.');\n    }\n\n    let buffers = [];\n    if (binaryChunk) {\n      buffers[0] = new Gltf2Resource({}, baseUrl, binaryChunk);\n    } else {\n      for (let buffer of json.buffers) {\n        buffers.push(new Gltf2Resource(buffer, baseUrl));\n      }\n    }\n\n    let bufferViews = [];\n    for (let bufferView of json.bufferViews) {\n      bufferViews.push(new Gltf2BufferView(bufferView, buffers));\n    }\n\n    let images = [];\n    if (json.images) {\n      for (let image of json.images) {\n        images.push(new Gltf2Resource(image, baseUrl));\n      }\n    }\n\n    let textures = [];\n    if (json.textures) {\n      for (let texture of json.textures) {\n        let image = images[texture.source];\n        let glTexture = image.texture(bufferViews);\n        if (texture.sampler) {\n          let sampler = sampler[texture.sampler];\n          glTexture.sampler.minFilter = sampler.minFilter;\n          glTexture.sampler.magFilter = sampler.magFilter;\n          glTexture.sampler.wrapS = sampler.wrapS;\n          glTexture.sampler.wrapT = sampler.wrapT;\n        }\n        textures.push(glTexture);\n      }\n    }\n\n    function getTexture(textureInfo) {\n      if (!textureInfo) {\n        return null;\n      }\n      return textures[textureInfo.index];\n    }\n\n    let materials = [];\n    if (json.materials) {\n      for (let material of json.materials) {\n        let glMaterial = new PbrMaterial();\n        let pbr = material.pbrMetallicRoughness || {};\n\n        glMaterial.baseColorFactor.value = pbr.baseColorFactor || [1, 1, 1, 1];\n        glMaterial.baseColor.texture = getTexture(pbr.baseColorTexture);\n        glMaterial.metallicRoughnessFactor.value = [\n          pbr.metallicFactor || 1.0,\n          pbr.roughnessFactor || 1.0,\n        ];\n        glMaterial.metallicRoughness.texture = getTexture(pbr.metallicRoughnessTexture);\n        glMaterial.normal.texture = getTexture(json.normalTexture);\n        glMaterial.occlusion.texture = getTexture(json.occlusionTexture);\n        glMaterial.occlusionStrength.value = (json.occlusionTexture && json.occlusionTexture.strength) ?\n                                              json.occlusionTexture.strength : 1.0;\n        glMaterial.emissiveFactor.value = material.emissiveFactor || [0, 0, 0];\n        glMaterial.emissive.texture = getTexture(json.emissiveTexture);\n        if (!glMaterial.emissive.texture && json.emissiveFactor) {\n          glMaterial.emissive.texture = new ColorTexture(1.0, 1.0, 1.0, 1.0);\n        }\n\n        switch (material.alphaMode) {\n          case 'BLEND':\n            glMaterial.state.blend = true;\n            break;\n          case 'MASK':\n            // Not really supported.\n            glMaterial.state.blend = true;\n            break;\n          default: // Includes 'OPAQUE'\n            glMaterial.state.blend = false;\n        }\n\n        // glMaterial.alpha_mode = material.alphaMode;\n        // glMaterial.alpha_cutoff = material.alphaCutoff;\n        glMaterial.state.cullFace = !(material.doubleSided);\n\n        materials.push(glMaterial);\n      }\n    }\n\n    let accessors = json.accessors;\n\n    let meshes = [];\n    for (let mesh of json.meshes) {\n      let glMesh = new Gltf2Mesh();\n      meshes.push(glMesh);\n\n      for (let primitive of mesh.primitives) {\n        let material = null;\n        if ('material' in primitive) {\n          material = materials[primitive.material];\n        } else {\n          // Create a \"default\" material if the primitive has none.\n          material = new PbrMaterial();\n        }\n\n        let attributes = [];\n        let elementCount = 0;\n        /* let glPrimitive = new Gltf2Primitive(primitive, material);\n        glMesh.primitives.push(glPrimitive); */\n\n        let min = null;\n        let max = null;\n\n        for (let name in primitive.attributes) {\n          let accessor = accessors[primitive.attributes[name]];\n          let bufferView = bufferViews[accessor.bufferView];\n          elementCount = accessor.count;\n\n          let glAttribute = new PrimitiveAttribute(\n            name,\n            bufferView.renderBuffer(this.renderer, GL.ARRAY_BUFFER),\n            getComponentCount(accessor.type),\n            accessor.componentType,\n            bufferView.byteStride || 0,\n            accessor.byteOffset || 0\n          );\n          glAttribute.normalized = accessor.normalized || false;\n\n          if (name == 'POSITION') {\n            min = accessor.min;\n            max = accessor.max;\n          }\n\n          attributes.push(glAttribute);\n        }\n\n        let glPrimitive = new Primitive(attributes, elementCount, primitive.mode);\n\n        if ('indices' in primitive) {\n          let accessor = accessors[primitive.indices];\n          let bufferView = bufferViews[accessor.bufferView];\n\n          glPrimitive.setIndexBuffer(\n            bufferView.renderBuffer(this.renderer, GL.ELEMENT_ARRAY_BUFFER),\n            accessor.byteOffset || 0,\n            accessor.componentType\n          );\n          glPrimitive.indexType = accessor.componentType;\n          glPrimitive.indexByteOffset = accessor.byteOffset || 0;\n          glPrimitive.elementCount = accessor.count;\n        }\n\n        if (min && max) {\n          glPrimitive.setBounds(min, max);\n        }\n\n        // After all the attributes have been processed, get a program that is\n        // appropriate for both the material and the primitive attributes.\n        glMesh.primitives.push(\n            this.renderer.createRenderPrimitive(glPrimitive, material));\n      }\n    }\n\n    let sceneNode = new Node();\n    let scene = json.scenes[json.scene];\n    for (let nodeId of scene.nodes) {\n      let node = json.nodes[nodeId];\n      sceneNode.addNode(\n          this.processNodes(node, json.nodes, meshes));\n    }\n\n    return sceneNode;\n  }\n\n  processNodes(node, nodes, meshes) {\n    let glNode = new Node();\n    glNode.name = node.name;\n\n    if ('mesh' in node) {\n      let mesh = meshes[node.mesh];\n      for (let primitive of mesh.primitives) {\n        glNode.addRenderPrimitive(primitive);\n      }\n    }\n\n    if (node.matrix) {\n      glNode.matrix = new Float32Array(node.matrix);\n    } else if (node.translation || node.rotation || node.scale) {\n      if (node.translation) {\n        glNode.translation = new Float32Array(node.translation);\n      }\n\n      if (node.rotation) {\n        glNode.rotation = new Float32Array(node.rotation);\n      }\n\n      if (node.scale) {\n        glNode.scale = new Float32Array(node.scale);\n      }\n    }\n\n    if (node.children) {\n      for (let nodeId of node.children) {\n        let node = nodes[nodeId];\n        glNode.addNode(this.processNodes(node, nodes, meshes));\n      }\n    }\n\n    return glNode;\n  }\n}\n\nclass Gltf2Mesh {\n  constructor() {\n    this.primitives = [];\n  }\n}\n\nclass Gltf2BufferView {\n  constructor(json, buffers) {\n    this.buffer = buffers[json.buffer];\n    this.byteOffset = json.byteOffset || 0;\n    this.byteLength = json.byteLength || null;\n    this.byteStride = json.byteStride;\n\n    this._viewPromise = null;\n    this._renderBuffer = null;\n  }\n\n  dataView() {\n    if (!this._viewPromise) {\n      this._viewPromise = this.buffer.arrayBuffer().then((arrayBuffer) => {\n        return new DataView(arrayBuffer, this.byteOffset, this.byteLength);\n      });\n    }\n    return this._viewPromise;\n  }\n\n  renderBuffer(renderer, target) {\n    if (!this._renderBuffer) {\n      this._renderBuffer = renderer.createRenderBuffer(target, this.dataView());\n    }\n    return this._renderBuffer;\n  }\n}\n\nclass Gltf2Resource {\n  constructor(json, baseUrl, arrayBuffer) {\n    this.json = json;\n    this.baseUrl = baseUrl;\n\n    this._dataPromise = null;\n    this._texture = null;\n    if (arrayBuffer) {\n      this._dataPromise = Promise.resolve(arrayBuffer);\n    }\n  }\n\n  arrayBuffer() {\n    if (!this._dataPromise) {\n      if (isDataUri(this.json.uri)) {\n        let base64String = this.json.uri.replace('data:application/octet-stream;base64,', '');\n        let binaryArray = Uint8Array.from(atob(base64String), (c) => c.charCodeAt(0));\n        this._dataPromise = Promise.resolve(binaryArray.buffer);\n        return this._dataPromise;\n      }\n\n      this._dataPromise = fetch(resolveUri(this.json.uri, this.baseUrl))\n          .then((response) => response.arrayBuffer());\n    }\n    return this._dataPromise;\n  }\n\n  texture(bufferViews) {\n    if (!this._texture) {\n      let img = new Image();\n      this._texture = new ImageTexture(img);\n\n      if (this.json.uri) {\n        if (isDataUri(this.json.uri)) {\n          img.src = this.json.uri;\n        } else {\n          img.src = `${this.baseUrl}${this.json.uri}`;\n        }\n      } else {\n        let view = bufferViews[this.json.bufferView];\n        view.dataView().then((dataView) => {\n          let blob = new Blob([dataView], {type: this.json.mimeType});\n          img.src = window.URL.createObjectURL(blob);\n        });\n      }\n    }\n    return this._texture;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Material} from '../core/material.js';\nimport {ATTRIB_MASK} from '../core/renderer.js';\n\nconst VERTEX_SOURCE = `\nattribute vec3 POSITION, NORMAL;\nattribute vec2 TEXCOORD_0, TEXCOORD_1;\n\nuniform vec3 CAMERA_POSITION;\nuniform vec3 LIGHT_DIRECTION;\n\nvarying vec3 vLight; // Vector from vertex to light.\nvarying vec3 vView; // Vector from vertex to camera.\nvarying vec2 vTex;\n\n#ifdef USE_NORMAL_MAP\nattribute vec4 TANGENT;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_VERTEX_COLOR\nattribute vec4 COLOR_0;\nvarying vec4 vCol;\n#endif\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vec3 n = normalize(vec3(model * vec4(NORMAL, 0.0)));\n#ifdef USE_NORMAL_MAP\n  vec3 t = normalize(vec3(model * vec4(TANGENT.xyz, 0.0)));\n  vec3 b = cross(n, t) * TANGENT.w;\n  vTBN = mat3(t, b, n);\n#else\n  vNorm = n;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  vCol = COLOR_0;\n#endif\n\n  vTex = TEXCOORD_0;\n  vec4 mPos = model * vec4(POSITION, 1.0);\n  vLight = -LIGHT_DIRECTION;\n  vView = CAMERA_POSITION - mPos.xyz;\n  return proj * view * mPos;\n}`;\n\n// These equations are borrowed with love from this docs from Epic because I\n// just don't have anything novel to bring to the PBR scene.\n// http://blog.selfshadow.com/publications/s2013-shading-course/karis/s2013_pbs_epic_notes_v2.pdf\nconst EPIC_PBR_FUNCTIONS = `\nvec3 lambertDiffuse(vec3 cDiff) {\n  return cDiff / M_PI;\n}\n\nfloat specD(float a, float nDotH) {\n  float aSqr = a * a;\n  float f = ((nDotH * nDotH) * (aSqr - 1.0) + 1.0);\n  return aSqr / (M_PI * f * f);\n}\n\nfloat specG(float roughness, float nDotL, float nDotV) {\n  float k = (roughness + 1.0) * (roughness + 1.0) / 8.0;\n  float gl = nDotL / (nDotL * (1.0 - k) + k);\n  float gv = nDotV / (nDotV * (1.0 - k) + k);\n  return gl * gv;\n}\n\nvec3 specF(float vDotH, vec3 F0) {\n  float exponent = (-5.55473 * vDotH - 6.98316) * vDotH;\n  float base = 2.0;\n  return F0 + (1.0 - F0) * pow(base, exponent);\n}`;\n\nconst FRAGMENT_SOURCE = `\n#define M_PI 3.14159265\n\nuniform vec4 baseColorFactor;\n#ifdef USE_BASE_COLOR_MAP\nuniform sampler2D baseColorTex;\n#endif\n\nvarying vec3 vLight;\nvarying vec3 vView;\nvarying vec2 vTex;\n\n#ifdef USE_VERTEX_COLOR\nvarying vec4 vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\nuniform sampler2D normalTex;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_METAL_ROUGH_MAP\nuniform sampler2D metallicRoughnessTex;\n#endif\nuniform vec2 metallicRoughnessFactor;\n\n#ifdef USE_OCCLUSION\nuniform sampler2D occlusionTex;\nuniform float occlusionStrength;\n#endif\n\n#ifdef USE_EMISSIVE_TEXTURE\nuniform sampler2D emissiveTex;\n#endif\nuniform vec3 emissiveFactor;\n\nuniform vec3 LIGHT_COLOR;\n\nconst vec3 dielectricSpec = vec3(0.04);\nconst vec3 black = vec3(0.0);\n\n${EPIC_PBR_FUNCTIONS}\n\nvec4 fragment_main() {\n#ifdef USE_BASE_COLOR_MAP\n  vec4 baseColor = texture2D(baseColorTex, vTex) * baseColorFactor;\n#else\n  vec4 baseColor = baseColorFactor;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  baseColor *= vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\n  vec3 n = texture2D(normalTex, vTex).rgb;\n  n = normalize(vTBN * (2.0 * n - 1.0));\n#else\n  vec3 n = normalize(vNorm);\n#endif\n\n#ifdef FULLY_ROUGH\n  float metallic = 0.0;\n#else\n  float metallic = metallicRoughnessFactor.x;\n#endif\n\n  float roughness = metallicRoughnessFactor.y;\n\n#ifdef USE_METAL_ROUGH_MAP\n  vec4 metallicRoughness = texture2D(metallicRoughnessTex, vTex);\n  metallic *= metallicRoughness.b;\n  roughness *= metallicRoughness.g;\n#endif\n  \n  vec3 l = normalize(vLight);\n  vec3 v = normalize(vView);\n  vec3 h = normalize(l+v);\n\n  float nDotL = clamp(dot(n, l), 0.001, 1.0);\n  float nDotV = abs(dot(n, v)) + 0.001;\n  float nDotH = max(dot(n, h), 0.0);\n  float vDotH = max(dot(v, h), 0.0);\n\n  // From GLTF Spec\n  vec3 cDiff = mix(baseColor.rgb * (1.0 - dielectricSpec.r), black, metallic); // Diffuse color\n  vec3 F0 = mix(dielectricSpec, baseColor.rgb, metallic); // Specular color\n  float a = roughness * roughness;\n\n#ifdef FULLY_ROUGH\n  vec3 specular = F0 * 0.45;\n#else\n  vec3 F = specF(vDotH, F0);\n  float D = specD(a, nDotH);\n  float G = specG(roughness, nDotL, nDotV);\n  vec3 specular = (D * F * G) / (4.0 * nDotL * nDotV);\n#endif\n  float halfLambert = dot(n, l) * 0.5 + 0.5;\n  halfLambert *= halfLambert;\n\n  vec3 color = (halfLambert * LIGHT_COLOR * lambertDiffuse(cDiff)) + specular;\n\n#ifdef USE_OCCLUSION\n  float occlusion = texture2D(occlusionTex, vTex).r;\n  color = mix(color, color * occlusion, occlusionStrength);\n#endif\n  \n  vec3 emissive = emissiveFactor;\n#ifdef USE_EMISSIVE_TEXTURE\n  emissive *= texture2D(emissiveTex, vTex).rgb;\n#endif\n  color += emissive;\n\n  // gamma correction\n  //color = pow(color, vec3(1.0/2.2));\n\n  return vec4(color, baseColor.a);\n}`;\n\nexport class PbrMaterial extends Material {\n  constructor() {\n    super();\n\n    this.baseColor = this.defineSampler('baseColorTex');\n    this.metallicRoughness = this.defineSampler('metallicRoughnessTex');\n    this.normal = this.defineSampler('normalTex');\n    this.occlusion = this.defineSampler('occlusionTex');\n    this.emissive = this.defineSampler('emissiveTex');\n\n    this.baseColorFactor = this.defineUniform('baseColorFactor', [1.0, 1.0, 1.0, 1.0]);\n    this.metallicRoughnessFactor = this.defineUniform('metallicRoughnessFactor', [1.0, 1.0]);\n    this.occlusionStrength = this.defineUniform('occlusionStrength', 1.0);\n    this.emissiveFactor = this.defineUniform('emissiveFactor', [0, 0, 0]);\n  }\n\n  get materialName() {\n    return 'PBR';\n  }\n\n  get vertexSource() {\n    return VERTEX_SOURCE;\n  }\n\n  get fragmentSource() {\n    return FRAGMENT_SOURCE;\n  }\n\n  getProgramDefines(renderPrimitive) {\n    let programDefines = {};\n\n    if (renderPrimitive._attributeMask & ATTRIB_MASK.COLOR_0) {\n      programDefines['USE_VERTEX_COLOR'] = 1;\n    }\n\n    if (renderPrimitive._attributeMask & ATTRIB_MASK.TEXCOORD_0) {\n      if (this.baseColor.texture) {\n        programDefines['USE_BASE_COLOR_MAP'] = 1;\n      }\n\n      if (this.normal.texture && (renderPrimitive._attributeMask & ATTRIB_MASK.TANGENT)) {\n        programDefines['USE_NORMAL_MAP'] = 1;\n      }\n\n      if (this.metallicRoughness.texture) {\n        programDefines['USE_METAL_ROUGH_MAP'] = 1;\n      }\n\n      if (this.occlusion.texture) {\n        programDefines['USE_OCCLUSION'] = 1;\n      }\n\n      if (this.emissive.texture) {\n        programDefines['USE_EMISSIVE_TEXTURE'] = 1;\n      }\n    }\n\n    if ((!this.metallicRoughness.texture ||\n         !(renderPrimitive._attributeMask & ATTRIB_MASK.TEXCOORD_0)) &&\n        this.metallicRoughnessFactor.value[1] == 1.0) {\n      programDefines['FULLY_ROUGH'] = 1;\n    }\n\n    return programDefines;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport * as glMatrix from '../../node_modules/gl-matrix/src/gl-matrix/common.js';\nimport * as mat2 from '../../node_modules/gl-matrix/src/gl-matrix/mat2.js';\nimport * as mat2d from '../../node_modules/gl-matrix/src/gl-matrix/mat2d.js';\nimport * as mat3 from '../../node_modules/gl-matrix/src/gl-matrix/mat3.js';\nimport * as mat4 from '../../node_modules/gl-matrix/src/gl-matrix/mat4.js';\nimport * as quat from '../../node_modules/gl-matrix/src/gl-matrix/quat.js';\nimport * as quat2 from '../../node_modules/gl-matrix/src/gl-matrix/quat2.js';\nimport * as vec2 from '../../node_modules/gl-matrix/src/gl-matrix/vec2.js';\nimport * as vec3 from '../../node_modules/gl-matrix/src/gl-matrix/vec3.js';\nimport * as vec4 from '../../node_modules/gl-matrix/src/gl-matrix/vec4.js';\n\nexport {\n  glMatrix,\n  mat2,\n  mat2d,\n  mat3,\n  mat4,\n  quat,\n  quat2,\n  vec2,\n  vec3,\n  vec4,\n};\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {mat3, vec3} from './gl-matrix.js';\n\nlet normalMat = mat3.create();\n\nconst RAY_INTERSECTION_OFFSET = 0.02;\n\nexport class Ray {\n  constructor(matrix = null) {\n    this.origin = vec3.create();\n\n    this._dir = vec3.create();\n    this._dir[2] = -1.0;\n\n    if (matrix) {\n      vec3.transformMat4(this.origin, this.origin, matrix);\n      mat3.fromMat4(normalMat, matrix);\n      vec3.transformMat3(this._dir, this._dir, normalMat);\n    }\n\n    // To force the inverse and sign calculations.\n    this.dir = this._dir;\n  }\n\n  get dir() {\n    return this._dir;\n  }\n\n  set dir(value) {\n    this._dir = vec3.copy(this._dir, value);\n    vec3.normalize(this._dir, this._dir);\n\n    this.inv_dir = vec3.fromValues(\n      1.0 / this._dir[0],\n      1.0 / this._dir[1],\n      1.0 / this._dir[2]);\n\n    this.sign = [\n      (this.inv_dir[0] < 0) ? 1 : 0,\n      (this.inv_dir[1] < 0) ? 1 : 0,\n      (this.inv_dir[2] < 0) ? 1 : 0,\n    ];\n  }\n\n  // Borrowed from:\n  // eslint-disable-next-line max-len\n  // https://www.scratchapixel.com/lessons/3d-basic-rendering/minimal-ray-tracer-rendering-simple-shapes/ray-box-intersection\n  intersectsAABB(min, max) {\n    let r = this;\n\n    let bounds = [min, max];\n\n    let tmin = (bounds[r.sign[0]][0] - r.origin[0]) * r.inv_dir[0];\n    let tmax = (bounds[1-r.sign[0]][0] - r.origin[0]) * r.inv_dir[0];\n    let tymin = (bounds[r.sign[1]][1] - r.origin[1]) * r.inv_dir[1];\n    let tymax = (bounds[1-r.sign[1]][1] - r.origin[1]) * r.inv_dir[1];\n\n    if ((tmin > tymax) || (tymin > tmax)) {\n      return null;\n    }\n    if (tymin > tmin) {\n      tmin = tymin;\n    }\n    if (tymax < tmax) {\n      tmax = tymax;\n    }\n\n    let tzmin = (bounds[r.sign[2]][2] - r.origin[2]) * r.inv_dir[2];\n    let tzmax = (bounds[1-r.sign[2]][2] - r.origin[2]) * r.inv_dir[2];\n\n    if ((tmin > tzmax) || (tzmin > tmax)) {\n      return null;\n    }\n    if (tzmin > tmin) {\n      tmin = tzmin;\n    }\n    if (tzmax < tmax) {\n      tmax = tzmax;\n    }\n\n    let t = -1;\n    if (tmin > 0 && tmax > 0) {\n      t = Math.min(tmin, tmax);\n    } else if (tmin > 0) {\n      t = tmin;\n    } else if (tmax > 0) {\n      t = tmax;\n    } else {\n      // Intersection is behind the ray origin.\n      return null;\n    }\n\n    // Push ray intersection point back along the ray a bit so that cursors\n    // don't accidentally intersect with the hit surface.\n    t -= RAY_INTERSECTION_OFFSET;\n\n    // Return the point where the ray first intersected with the AABB.\n    let intersectionPoint = vec3.clone(this._dir);\n    vec3.scale(intersectionPoint, intersectionPoint, t);\n    vec3.add(intersectionPoint, intersectionPoint, this.origin);\n    return intersectionPoint;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nThis file renders a passed in XRStageBounds object and attempts\nto render geometry on the floor to indicate where the bounds is.\nXRStageBounds' `geometry` is a series of XRStageBoundsPoints (in\nclockwise-order) with `x` and `z` properties for each.\n*/\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nclass BoundsMaterial extends Material {\n  constructor() {\n    super();\n\n    this.state.blend = true;\n    this.state.blendFuncSrc = GL.SRC_ALPHA;\n    this.state.blendFuncDst = GL.ONE;\n    this.state.depthTest = false;\n  }\n\n  get materialName() {\n    return 'BOUNDS_RENDERER';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    precision mediump float;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 1.0, 0.0, 0.3);\n    }`;\n  }\n}\n\nexport class BoundsRenderer extends Node {\n  constructor() {\n    super();\n\n    this._stageBounds = null;\n  }\n\n  onRendererChanged(renderer) {\n    this.stageBounds = this._stageBounds;\n  }\n\n  get stageBounds() {\n    return this._stageBounds;\n  }\n\n  set stageBounds(stageBounds) {\n    if (this._stageBounds) {\n      this.clearRenderPrimitives();\n    }\n    this._stageBounds = stageBounds;\n    if (!stageBounds || stageBounds.length === 0 || !this._renderer) {\n      return;\n    }\n\n    let verts = [];\n    let indices = [];\n\n    // Tessellate the bounding points from XRStageBounds and connect\n    // each point to a neighbor and 0,0,0.\n    const pointCount = stageBounds.geometry.length;\n    for (let i = 0; i < pointCount; i++) {\n      const point = stageBounds.geometry[i];\n      verts.push(point.x, 0, point.z);\n      indices.push(i, i === 0 ? pointCount - 1 : i - 1, pointCount);\n    }\n    // Center point\n    verts.push(0, 0, 0);\n\n    let vertexBuffer = this._renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(verts));\n    let indexBuffer = this._renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));\n\n    let attribs = [\n      new PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 12, 0),\n    ];\n\n    let primitive = new Primitive(attribs, indices.length);\n    primitive.setIndexBuffer(indexBuffer);\n\n    let renderPrimitive = this._renderer.createRenderPrimitive(primitive, new BoundsMaterial());\n    this.addRenderPrimitive(renderPrimitive);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {PrimitiveStream} from '../geometry/primitive-stream.js';\n\nconst BUTTON_SIZE = 0.1;\nconst BUTTON_CORNER_RADIUS = 0.025;\nconst BUTTON_CORNER_SEGMENTS = 8;\nconst BUTTON_ICON_SIZE = 0.07;\nconst BUTTON_LAYER_DISTANCE = 0.005;\nconst BUTTON_COLOR = 0.75;\nconst BUTTON_ALPHA = 0.85;\nconst BUTTON_HOVER_COLOR = 0.9;\nconst BUTTON_HOVER_ALPHA = 1.0;\nconst BUTTON_HOVER_SCALE = 1.1;\nconst BUTTON_HOVER_TRANSITION_TIME_MS = 200;\n\nclass ButtonMaterial extends Material {\n  constructor() {\n    super();\n\n    this.state.blend = true;\n\n    this.defineUniform('hoverAmount', 0);\n  }\n\n  get materialName() {\n    return 'BUTTON_MATERIAL';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n\n    uniform float hoverAmount;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      float scale = mix(1.0, ${BUTTON_HOVER_SCALE}, hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    uniform float hoverAmount;\n\n    const vec4 default_color = vec4(${BUTTON_COLOR}, ${BUTTON_COLOR}, ${BUTTON_COLOR}, ${BUTTON_ALPHA});\n    const vec4 hover_color = vec4(${BUTTON_HOVER_COLOR}, ${BUTTON_HOVER_COLOR},\n                                  ${BUTTON_HOVER_COLOR}, ${BUTTON_HOVER_ALPHA});\n\n    vec4 fragment_main() {\n      return mix(default_color, hover_color, hoverAmount);\n    }`;\n  }\n}\n\nclass ButtonIconMaterial extends Material {\n  constructor() {\n    super();\n\n    this.state.blend = true;\n\n    this.defineUniform('hoverAmount', 0);\n    this.icon = this.defineSampler('icon');\n  }\n\n  get materialName() {\n    return 'BUTTON_ICON_MATERIAL';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    uniform float hoverAmount;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      float scale = mix(1.0, ${BUTTON_HOVER_SCALE}, hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    uniform sampler2D icon;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(icon, vTexCoord);\n    }`;\n  }\n}\n\nexport class ButtonNode extends Node {\n  constructor(iconTexture, callback) {\n    super();\n\n    // All buttons are selectable by default.\n    this.selectable = true;\n\n    this._selectHandler = callback;\n    this._iconTexture = iconTexture;\n    this._hovered = false;\n    this._hoverT = 0;\n  }\n\n  get iconTexture() {\n    return this._iconTexture;\n  }\n\n  set iconTexture(value) {\n    if (this._iconTexture == value) {\n      return;\n    }\n\n    this._iconTexture = value;\n    this._iconRenderPrimitive.samplers.icon.texture = value;\n  }\n\n  onRendererChanged(renderer) {\n    let stream = new PrimitiveStream();\n\n    let hd = BUTTON_LAYER_DISTANCE * 0.5;\n\n    // Build a rounded rect for the background.\n    let hs = BUTTON_SIZE * 0.5;\n    let ihs = hs - BUTTON_CORNER_RADIUS;\n    stream.startGeometry();\n\n    // Rounded corners and sides\n    let segments = BUTTON_CORNER_SEGMENTS * 4;\n    for (let i = 0; i < segments; ++i) {\n      let rad = i * ((Math.PI * 2.0) / segments);\n      let x = Math.cos(rad) * BUTTON_CORNER_RADIUS;\n      let y = Math.sin(rad) * BUTTON_CORNER_RADIUS;\n      let section = Math.floor(i / BUTTON_CORNER_SEGMENTS);\n      switch (section) {\n        case 0:\n          x += ihs;\n          y += ihs;\n          break;\n        case 1:\n          x -= ihs;\n          y += ihs;\n          break;\n        case 2:\n          x -= ihs;\n          y -= ihs;\n          break;\n        case 3:\n          x += ihs;\n          y -= ihs;\n          break;\n      }\n\n      stream.pushVertex(x, y, -hd, 0, 0, 0, 0, 1);\n\n      if (i > 1) {\n        stream.pushTriangle(0, i-1, i);\n      }\n    }\n\n    stream.endGeometry();\n\n    let buttonPrimitive = stream.finishPrimitive(renderer);\n    this._buttonRenderPrimitive = renderer.createRenderPrimitive(buttonPrimitive, new ButtonMaterial());\n    this.addRenderPrimitive(this._buttonRenderPrimitive);\n\n    // Build a simple textured quad for the foreground.\n    hs = BUTTON_ICON_SIZE * 0.5;\n    stream.clear();\n    stream.startGeometry();\n\n    stream.pushVertex(-hs, hs, hd, 0, 0, 0, 0, 1);\n    stream.pushVertex(-hs, -hs, hd, 0, 1, 0, 0, 1);\n    stream.pushVertex(hs, -hs, hd, 1, 1, 0, 0, 1);\n    stream.pushVertex(hs, hs, hd, 1, 0, 0, 0, 1);\n\n    stream.pushTriangle(0, 1, 2);\n    stream.pushTriangle(0, 2, 3);\n\n    stream.endGeometry();\n\n    let iconPrimitive = stream.finishPrimitive(renderer);\n    let iconMaterial = new ButtonIconMaterial();\n    iconMaterial.icon.texture = this._iconTexture;\n    this._iconRenderPrimitive = renderer.createRenderPrimitive(iconPrimitive, iconMaterial);\n    this.addRenderPrimitive(this._iconRenderPrimitive);\n  }\n\n  onHoverStart() {\n    this._hovered = true;\n  }\n\n  onHoverEnd() {\n    this._hovered = false;\n  }\n\n  _updateHoverState() {\n    let t = this._hoverT / BUTTON_HOVER_TRANSITION_TIME_MS;\n    // Cubic Ease In/Out\n    // TODO: Get a better animation system\n    let hoverAmount = t<.5 ? 4*t*t*t : (t-1)*(2*t-2)*(2*t-2)+1;\n    this._buttonRenderPrimitive.uniforms.hoverAmount.value = hoverAmount;\n    this._iconRenderPrimitive.uniforms.hoverAmount.value = hoverAmount;\n  }\n\n  onUpdate(timestamp, frameDelta) {\n    if (this._hovered && this._hoverT < BUTTON_HOVER_TRANSITION_TIME_MS) {\n      this._hoverT = Math.min(BUTTON_HOVER_TRANSITION_TIME_MS, this._hoverT + frameDelta);\n      this._updateHoverState();\n    } else if (!this._hovered && this._hoverT > 0) {\n      this._hoverT = Math.max(0.0, this._hoverT - frameDelta);\n      this._updateHoverState();\n    }\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {UrlTexture} from '../core/texture.js';\nimport {BoxBuilder} from '../geometry/box-builder.js';\nimport {mat4} from '../math/gl-matrix.js';\n\nclass CubeSeaMaterial extends Material {\n  constructor(heavy = false) {\n    super();\n\n    this.heavy = heavy;\n\n    this.baseColor = this.defineSampler('baseColor');\n  }\n\n  get materialName() {\n    return 'CUBE_SEA';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    attribute vec3 NORMAL;\n\n    varying vec2 vTexCoord;\n    varying vec3 vLight;\n\n    const vec3 lightDir = vec3(0.75, 0.5, 1.0);\n    const vec3 ambientColor = vec3(0.5, 0.5, 0.5);\n    const vec3 lightColor = vec3(0.75, 0.75, 0.75);\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec3 normalRotated = vec3(model * vec4(NORMAL, 0.0));\n      float lightFactor = max(dot(normalize(lightDir), normalRotated), 0.0);\n      vLight = ambientColor + (lightColor * lightFactor);\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    if (!this.heavy) {\n      return `\n      precision mediump float;\n      uniform sampler2D baseColor;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec4 fragment_main() {\n        return vec4(vLight, 1.0) * texture2D(baseColor, vTexCoord);\n      }`;\n    } else {\n      // Used when we want to stress the GPU a bit more.\n      // Stolen with love from https://www.clicktorelease.com/code/codevember-2016/4/\n      return `\n      precision mediump float;\n\n      uniform sampler2D diffuse;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec2 dimensions = vec2(64, 64);\n      float seed = 0.42;\n\n      vec2 hash( vec2 p ) {\n        p=vec2(dot(p,vec2(127.1,311.7)),dot(p,vec2(269.5,183.3)));\n        return fract(sin(p)*18.5453);\n      }\n\n      vec3 hash3( vec2 p ) {\n          vec3 q = vec3( dot(p,vec2(127.1,311.7)),\n                 dot(p,vec2(269.5,183.3)),\n                 dot(p,vec2(419.2,371.9)) );\n        return fract(sin(q)*43758.5453);\n      }\n\n      float iqnoise( in vec2 x, float u, float v ) {\n        vec2 p = floor(x);\n        vec2 f = fract(x);\n        float k = 1.0+63.0*pow(1.0-v,4.0);\n        float va = 0.0;\n        float wt = 0.0;\n        for( int j=-2; j<=2; j++ )\n          for( int i=-2; i<=2; i++ ) {\n            vec2 g = vec2( float(i),float(j) );\n            vec3 o = hash3( p + g )*vec3(u,u,1.0);\n            vec2 r = g - f + o.xy;\n            float d = dot(r,r);\n            float ww = pow( 1.0-smoothstep(0.0,1.414,sqrt(d)), k );\n            va += o.z*ww;\n            wt += ww;\n          }\n        return va/wt;\n      }\n\n      // return distance, and cell id\n      vec2 voronoi( in vec2 x ) {\n        vec2 n = floor( x );\n        vec2 f = fract( x );\n        vec3 m = vec3( 8.0 );\n        for( int j=-1; j<=1; j++ )\n          for( int i=-1; i<=1; i++ ) {\n            vec2  g = vec2( float(i), float(j) );\n            vec2  o = hash( n + g );\n            vec2  r = g - f + (0.5+0.5*sin(seed+6.2831*o));\n            float d = dot( r, r );\n            if( d<m.x )\n              m = vec3( d, o );\n          }\n        return vec2( sqrt(m.x), m.y+m.z );\n      }\n\n      vec4 fragment_main() {\n        vec2 uv = ( vTexCoord );\n        uv *= vec2( 10., 10. );\n        uv += seed;\n        vec2 p = 0.5 - 0.5*sin( 0.*vec2(1.01,1.71) );\n\n        vec2 c = voronoi( uv );\n        vec3 col = vec3( c.y / 2. );\n\n        float f = iqnoise( 1. * uv + c.y, p.x, p.y );\n        col *= 1.0 + .25 * vec3( f );\n\n        return vec4(vLight, 1.0) * texture2D(diffuse, vTexCoord) * vec4( col, 1. );\n      }`;\n    }\n  }\n}\n\nexport class CubeSeaNode extends Node {\n  constructor(options = {}) {\n    super();\n\n    // Test variables\n    // If true, use a very heavyweight shader to stress the GPU.\n    this.heavyGpu = !!options.heavyGpu;\n\n    // Number and size of the static cubes. Warning, large values\n    // don't render right due to overflow of the int16 indices.\n    this.cubeCount = options.cubeCount || (this.heavyGpu ? 12 : 10);\n    this.cubeScale = options.cubeScale || 1.0;\n\n    // Draw only half the world cubes. Helps test variable render cost\n    // when combined with heavyGpu.\n    this.halfOnly = !!options.halfOnly;\n\n    // Automatically spin the world cubes. Intended for automated testing,\n    // not recommended for viewing in a headset.\n    this.autoRotate = !!options.autoRotate;\n\n    this._texture = new UrlTexture(options.imageUrl || 'media/textures/cube-sea.png');\n\n    this._material = new CubeSeaMaterial(this.heavyGpu);\n    this._material.baseColor.texture = this._texture;\n\n    this._renderPrimitive = null;\n  }\n\n  onRendererChanged(renderer) {\n    this._renderPrimitive = null;\n\n    let boxBuilder = new BoxBuilder();\n\n    // Build the spinning \"hero\" cubes\n    boxBuilder.pushCube([0, 0.25, -0.8], 0.1);\n    boxBuilder.pushCube([0.8, 0.25, 0], 0.1);\n    boxBuilder.pushCube([0, 0.25, 0.8], 0.1);\n    boxBuilder.pushCube([-0.8, 0.25, 0], 0.1);\n\n    let heroPrimitive = boxBuilder.finishPrimitive(renderer);\n\n    this.heroNode = renderer.createMesh(heroPrimitive, this._material);\n\n    this.rebuildCubes(boxBuilder);\n\n    this.cubeSeaNode = new Node();\n    this.cubeSeaNode.addRenderPrimitive(this._renderPrimitive);\n\n    this.addNode(this.cubeSeaNode);\n    this.addNode(this.heroNode);\n\n    return this.waitForComplete();\n  }\n\n  rebuildCubes(boxBuilder) {\n    if (!this._renderer) {\n      return;\n    }\n\n    if (!boxBuilder) {\n      boxBuilder = new BoxBuilder();\n    } else {\n      boxBuilder.clear();\n    }\n\n    let size = 0.4 * this.cubeScale;\n\n    // Build the cube sea\n    let halfGrid = this.cubeCount * 0.5;\n    for (let x = 0; x < this.cubeCount; ++x) {\n      for (let y = 0; y < this.cubeCount; ++y) {\n        for (let z = 0; z < this.cubeCount; ++z) {\n          let pos = [x - halfGrid, y - halfGrid, z - halfGrid];\n          // Only draw cubes on one side. Useful for testing variable render\n          // cost that depends on view direction.\n          if (this.halfOnly && pos[0] < 0) {\n            continue;\n          }\n\n          // Don't place a cube in the center of the grid.\n          if (pos[0] == 0 && pos[1] == 0 && pos[2] == 0) {\n            continue;\n          }\n\n          boxBuilder.pushCube(pos, size);\n        }\n      }\n    }\n\n    if (this.cubeCount > 12) {\n      // Each cube has 6 sides with 2 triangles and 3 indices per triangle, so\n      // the total number of indices needed is cubeCount^3 * 36. This exceeds\n      // the short index range past 12 cubes.\n      boxBuilder.indexType = 5125; // gl.UNSIGNED_INT\n    }\n    let cubeSeaPrimitive = boxBuilder.finishPrimitive(this._renderer);\n\n    if (!this._renderPrimitive) {\n      this._renderPrimitive = this._renderer.createRenderPrimitive(cubeSeaPrimitive, this._material);\n    } else {\n      this._renderPrimitive.setPrimitive(cubeSeaPrimitive);\n    }\n  }\n\n  onUpdate(timestamp, frameDelta) {\n    if (this.autoRotate) {\n      mat4.fromRotation(this.cubeSeaNode.matrix, timestamp / 500, [0, -1, 0]);\n    }\n    mat4.fromRotation(this.heroNode.matrix, timestamp / 2000, [0, 1, 0]);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {PrimitiveStream} from '../geometry/primitive-stream.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nconst SHADOW_SEGMENTS = 32;\nconst SHADOW_GROUND_OFFSET = 0.01;\nconst SHADOW_CENTER_ALPHA = 0.7;\nconst SHADOW_INNER_ALPHA = 0.3;\nconst SHADOW_OUTER_ALPHA = 0.0;\nconst SHADOW_INNER_RADIUS = 0.6;\nconst SHADOW_OUTER_RADIUS = 1.0;\n\nclass DropShadowMaterial extends Material {\n  constructor() {\n    super();\n\n    this.state.blend = true;\n    this.state.blendFuncSrc = GL.ONE;\n    this.state.blendFuncDst = GL.ONE_MINUS_SRC_ALPHA;\n    this.state.depthFunc = GL.LEQUAL;\n    this.state.depthMask = false;\n  }\n\n  get materialName() {\n    return 'DROP_SHADOW_MATERIAL';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying float vShadow;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vShadow = TEXCOORD_0.x;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    varying float vShadow;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 0.0, 0.0, vShadow);\n    }`;\n  }\n}\n\nexport class DropShadowNode extends Node {\n  constructor(iconTexture, callback) {\n    super();\n  }\n\n  onRendererChanged(renderer) {\n    let stream = new PrimitiveStream();\n\n    stream.startGeometry();\n\n    // Shadow center\n    stream.pushVertex(0, SHADOW_GROUND_OFFSET, 0, SHADOW_CENTER_ALPHA);\n\n    let segRad = ((Math.PI * 2.0) / SHADOW_SEGMENTS);\n\n    let idx;\n    for (let i = 0; i < SHADOW_SEGMENTS; ++i) {\n      idx = stream.nextVertexIndex;\n\n      let rad = i * segRad;\n      let x = Math.cos(rad);\n      let y = Math.sin(rad);\n      stream.pushVertex(x * SHADOW_INNER_RADIUS, SHADOW_GROUND_OFFSET, y * SHADOW_INNER_RADIUS, SHADOW_INNER_ALPHA);\n      stream.pushVertex(x * SHADOW_OUTER_RADIUS, SHADOW_GROUND_OFFSET, y * SHADOW_OUTER_RADIUS, SHADOW_OUTER_ALPHA);\n\n      if (i > 0) {\n        // Inner circle\n        stream.pushTriangle(0, idx, idx-2);\n\n        // Outer circle\n        stream.pushTriangle(idx, idx+1, idx-1);\n        stream.pushTriangle(idx, idx-1, idx-2);\n      }\n    }\n\n    stream.pushTriangle(0, 1, idx);\n\n    stream.pushTriangle(1, 2, idx+1);\n    stream.pushTriangle(1, idx+1, idx);\n\n    stream.endGeometry();\n\n    let shadowPrimitive = stream.finishPrimitive(renderer);\n    this._shadowRenderPrimitive = renderer.createRenderPrimitive(shadowPrimitive, new DropShadowMaterial());\n    this.addRenderPrimitive(this._shadowRenderPrimitive);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Node} from '../core/node.js';\nimport {Gltf2Loader} from '../loaders/gltf2.js';\n\n// Using a weak map here allows us to cache a loader per-renderer without\n// modifying the renderer object or leaking memory when it's garbage collected.\nlet gltfLoaderMap = new WeakMap();\n\nexport class Gltf2Node extends Node {\n  constructor(options) {\n    super();\n    this._url = options.url;\n\n    this._promise = null;\n    this._resolver = null;\n    this._rejecter = null;\n  }\n\n  onRendererChanged(renderer) {\n    let loader = gltfLoaderMap.get(renderer);\n    if (!loader) {\n      loader = new Gltf2Loader(renderer);\n      gltfLoaderMap.set(renderer, loader);\n    }\n\n    // Do we have a previously resolved promise? If so clear it.\n    if (!this._resolver && this._promise) {\n      this._promise = null;\n    }\n\n    this._ensurePromise();\n\n    loader.loadFromUrl(this._url).then((sceneNode) => {\n      this.addNode(sceneNode);\n      this._resolver(sceneNode.waitForComplete());\n      this._resolver = null;\n      this._rejecter = null;\n    }).catch((err) => {\n      this._rejecter(err);\n      this._resolver = null;\n      this._rejecter = null;\n    });\n  }\n\n  _ensurePromise() {\n    if (!this._promise) {\n      this._promise = new Promise((resolve, reject) => {\n        this._resolver = resolve;\n        this._rejecter = reject;\n      });\n    }\n    return this._promise;\n  }\n\n  waitForComplete() {\n    return this._ensurePromise();\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {Material, RENDER_ORDER} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {DataTexture} from '../core/texture.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\n// Laser texture data, 48x1 RGBA (not premultiplied alpha). This represents a\n// \"cross section\" of the laser beam with a bright core and a feathered edge.\n// Borrowed from Chromium source code.\nconst LASER_TEXTURE_DATA = new Uint8Array([\n0xff, 0xff, 0xff, 0x01, 0xff, 0xff, 0xff, 0x02, 0xbf, 0xbf, 0xbf, 0x04, 0xcc, 0xcc, 0xcc, 0x05,\n0xdb, 0xdb, 0xdb, 0x07, 0xcc, 0xcc, 0xcc, 0x0a, 0xd8, 0xd8, 0xd8, 0x0d, 0xd2, 0xd2, 0xd2, 0x11,\n0xce, 0xce, 0xce, 0x15, 0xce, 0xce, 0xce, 0x1a, 0xce, 0xce, 0xce, 0x1f, 0xcd, 0xcd, 0xcd, 0x24,\n0xc8, 0xc8, 0xc8, 0x2a, 0xc9, 0xc9, 0xc9, 0x2f, 0xc9, 0xc9, 0xc9, 0x34, 0xc9, 0xc9, 0xc9, 0x39,\n0xc9, 0xc9, 0xc9, 0x3d, 0xc8, 0xc8, 0xc8, 0x41, 0xcb, 0xcb, 0xcb, 0x44, 0xee, 0xee, 0xee, 0x87,\n0xfa, 0xfa, 0xfa, 0xc8, 0xf9, 0xf9, 0xf9, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xfa, 0xfa, 0xfa, 0xc9,\n0xfa, 0xfa, 0xfa, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xf9, 0xf9, 0xf9, 0xc9, 0xfa, 0xfa, 0xfa, 0xc8,\n0xee, 0xee, 0xee, 0x87, 0xcb, 0xcb, 0xcb, 0x44, 0xc8, 0xc8, 0xc8, 0x41, 0xc9, 0xc9, 0xc9, 0x3d,\n0xc9, 0xc9, 0xc9, 0x39, 0xc9, 0xc9, 0xc9, 0x34, 0xc9, 0xc9, 0xc9, 0x2f, 0xc8, 0xc8, 0xc8, 0x2a,\n0xcd, 0xcd, 0xcd, 0x24, 0xce, 0xce, 0xce, 0x1f, 0xce, 0xce, 0xce, 0x1a, 0xce, 0xce, 0xce, 0x15,\n0xd2, 0xd2, 0xd2, 0x11, 0xd8, 0xd8, 0xd8, 0x0d, 0xcc, 0xcc, 0xcc, 0x0a, 0xdb, 0xdb, 0xdb, 0x07,\n0xcc, 0xcc, 0xcc, 0x05, 0xbf, 0xbf, 0xbf, 0x04, 0xff, 0xff, 0xff, 0x02, 0xff, 0xff, 0xff, 0x01,\n]);\n\nconst LASER_LENGTH = 1.0;\nconst LASER_DIAMETER = 0.01;\nconst LASER_FADE_END = 0.535;\nconst LASER_FADE_POINT = 0.5335;\nconst LASER_DEFAULT_COLOR = [1.0, 1.0, 1.0, 0.25];\n\nconst CURSOR_RADIUS = 0.004;\nconst CURSOR_SHADOW_RADIUS = 0.007;\nconst CURSOR_SHADOW_INNER_LUMINANCE = 0.5;\nconst CURSOR_SHADOW_OUTER_LUMINANCE = 0.0;\nconst CURSOR_SHADOW_INNER_OPACITY = 0.75;\nconst CURSOR_SHADOW_OUTER_OPACITY = 0.0;\nconst CURSOR_OPACITY = 0.9;\nconst CURSOR_SEGMENTS = 16;\nconst CURSOR_DEFAULT_COLOR = [1.0, 1.0, 1.0, 1.0];\nconst CURSOR_DEFAULT_HIDDEN_COLOR = [0.5, 0.5, 0.5, 0.25];\n\nconst DEFAULT_RESET_OPTIONS = {\n  controllers: true,\n  lasers: true,\n  cursors: true,\n};\n\nclass LaserMaterial extends Material {\n  constructor() {\n    super();\n    this.renderOrder = RENDER_ORDER.ADDITIVE;\n    this.state.cullFace = false;\n    this.state.blend = true;\n    this.state.blendFuncSrc = GL.ONE;\n    this.state.blendFuncDst = GL.ONE;\n    this.state.depthMask = false;\n\n    this.laser = this.defineSampler('diffuse');\n    this.laser.texture = new DataTexture(LASER_TEXTURE_DATA, 48, 1);\n    this.laserColor = this.defineUniform('laserColor', LASER_DEFAULT_COLOR);\n  }\n\n  get materialName() {\n    return 'INPUT_LASER';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    precision mediump float;\n\n    uniform vec4 laserColor;\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    const float fadePoint = ${LASER_FADE_POINT};\n    const float fadeEnd = ${LASER_FADE_END};\n\n    vec4 fragment_main() {\n      vec2 uv = vTexCoord;\n      float front_fade_factor = 1.0 - clamp(1.0 - (uv.y - fadePoint) / (1.0 - fadePoint), 0.0, 1.0);\n      float back_fade_factor = clamp((uv.y - fadePoint) / (fadeEnd - fadePoint), 0.0, 1.0);\n      vec4 color = laserColor * texture2D(diffuse, vTexCoord);\n      float opacity = color.a * front_fade_factor * back_fade_factor;\n      return vec4(color.rgb * opacity, opacity);\n    }`;\n  }\n}\n\nconst CURSOR_VERTEX_SHADER = `\nattribute vec4 POSITION;\n\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vLuminance = POSITION.z;\n  vOpacity = POSITION.w;\n\n  // Billboarded, constant size vertex transform.\n  vec4 screenPos = proj * view * model * vec4(0.0, 0.0, 0.0, 1.0);\n  screenPos /= screenPos.w;\n  screenPos.xy += POSITION.xy;\n  return screenPos;\n}`;\n\nconst CURSOR_FRAGMENT_SHADER = `\nprecision mediump float;\n\nuniform vec4 cursorColor;\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 fragment_main() {\n  vec3 color = cursorColor.rgb * vLuminance;\n  float opacity = cursorColor.a * vOpacity;\n  return vec4(color * opacity, opacity);\n}`;\n\n// Cursors are drawn as billboards that always face the camera and are rendered\n// as a fixed size no matter how far away they are.\nclass CursorMaterial extends Material {\n  constructor() {\n    super();\n    this.renderOrder = RENDER_ORDER.ADDITIVE;\n    this.state.cullFace = false;\n    this.state.blend = true;\n    this.state.blendFuncSrc = GL.ONE;\n    this.state.depthMask = false;\n\n    this.cursorColor = this.defineUniform('cursorColor', CURSOR_DEFAULT_COLOR);\n  }\n\n  get materialName() {\n    return 'INPUT_CURSOR';\n  }\n\n  get vertexSource() {\n    return CURSOR_VERTEX_SHADER;\n  }\n\n  get fragmentSource() {\n    return CURSOR_FRAGMENT_SHADER;\n  }\n}\n\nclass CursorHiddenMaterial extends Material {\n  constructor() {\n    super();\n    this.renderOrder = RENDER_ORDER.ADDITIVE;\n    this.state.cullFace = false;\n    this.state.blend = true;\n    this.state.blendFuncSrc = GL.ONE;\n    this.state.depthFunc = GL.GEQUAL;\n    this.state.depthMask = false;\n\n    this.cursorColor = this.defineUniform('cursorColor', CURSOR_DEFAULT_HIDDEN_COLOR);\n  }\n\n  // TODO: Rename to \"program_name\"\n  get materialName() {\n    return 'INPUT_CURSOR_2';\n  }\n\n  get vertexSource() {\n    return CURSOR_VERTEX_SHADER;\n  }\n\n  get fragmentSource() {\n    return CURSOR_FRAGMENT_SHADER;\n  }\n}\n\nexport class InputRenderer extends Node {\n  constructor() {\n    super();\n\n    this._maxInputElements = 32;\n\n    this._controllers = [];\n    this._controllerNode = null;\n    this._controllerNodeHandedness = null;\n    this._lasers = null;\n    this._cursors = null;\n\n    this._activeControllers = 0;\n    this._activeLasers = 0;\n    this._activeCursors = 0;\n  }\n\n  onRendererChanged(renderer) {\n    this._controllers = [];\n    this._controllerNode = null;\n    this._controllerNodeHandedness = null;\n    this._lasers = null;\n    this._cursors = null;\n\n    this._activeControllers = 0;\n    this._activeLasers = 0;\n    this._activeCursors = 0;\n  }\n\n  setControllerMesh(controllerNode, handedness = 'right') {\n    this._controllerNode = controllerNode;\n    this._controllerNode.visible = false;\n    // FIXME: Temporary fix to initialize for cloning.\n    this.addNode(this._controllerNode);\n    this._controllerNodeHandedness = handedness;\n  }\n\n  addController(gripMatrix) {\n    if (!this._controllerNode) {\n        return;\n    }\n\n    let controller = null;\n    if (this._activeControllers < this._controllers.length) {\n      controller = this._controllers[this._activeControllers];\n    } else {\n      controller = this._controllerNode.clone();\n      this.addNode(controller);\n      this._controllers.push(controller);\n    }\n    this._activeControllers = (this._activeControllers + 1) % this._maxInputElements;\n\n    controller.matrix = gripMatrix;\n    controller.visible = true;\n  }\n\n  addLaserPointer(targetRay) {\n    // Create the laser pointer mesh if needed.\n    if (!this._lasers && this._renderer) {\n      this._lasers = [this._createLaserMesh()];\n      this.addNode(this._lasers[0]);\n    }\n\n    let laser = null;\n    if (this._activeLasers < this._lasers.length) {\n      laser = this._lasers[this._activeLasers];\n    } else {\n      laser = this._lasers[0].clone();\n      this.addNode(laser);\n      this._lasers.push(laser);\n    }\n    this._activeLasers = (this._activeLasers + 1) % this._maxInputElements;\n\n    laser.matrix = targetRay.transformMatrix;\n    laser.visible = true;\n  }\n\n  addCursor(cursorPos) {\n    // Create the cursor mesh if needed.\n    if (!this._cursors && this._renderer) {\n      this._cursors = [this._createCursorMesh()];\n      this.addNode(this._cursors[0]);\n    }\n\n    let cursor = null;\n    if (this._activeCursors < this._cursors.length) {\n      cursor = this._cursors[this._activeCursors];\n    } else {\n      cursor = this._cursors[0].clone();\n      this.addNode(cursor);\n      this._cursors.push(cursor);\n    }\n    this._activeCursors = (this._activeCursors + 1) % this._maxInputElements;\n\n    cursor.translation = cursorPos;\n    cursor.visible = true;\n  }\n\n  reset(options) {\n    if (!options) {\n      options = DEFAULT_RESET_OPTIONS;\n    }\n    if (this._controllers && options.controllers) {\n      for (let controller of this._controllers) {\n        controller.visible = false;\n      }\n      this._activeControllers = 0;\n    }\n    if (this._lasers && options.lasers) {\n      for (let laser of this._lasers) {\n        laser.visible = false;\n      }\n      this._activeLasers = 0;\n    }\n    if (this._cursors && options.cursors) {\n      for (let cursor of this._cursors) {\n        cursor.visible = false;\n      }\n      this._activeCursors = 0;\n    }\n  }\n\n  _createLaserMesh() {\n    let gl = this._renderer._gl;\n\n    let lr = LASER_DIAMETER * 0.5;\n    let ll = LASER_LENGTH;\n\n    // Laser is rendered as cross-shaped beam\n    let laserVerts = [\n    // X    Y   Z    U    V\n      0.0, lr, 0.0, 0.0, 1.0,\n      0.0, lr, -ll, 0.0, 0.0,\n      0.0, -lr, 0.0, 1.0, 1.0,\n      0.0, -lr, -ll, 1.0, 0.0,\n\n      lr, 0.0, 0.0, 0.0, 1.0,\n      lr, 0.0, -ll, 0.0, 0.0,\n      -lr, 0.0, 0.0, 1.0, 1.0,\n      -lr, 0.0, -ll, 1.0, 0.0,\n\n      0.0, -lr, 0.0, 0.0, 1.0,\n      0.0, -lr, -ll, 0.0, 0.0,\n      0.0, lr, 0.0, 1.0, 1.0,\n      0.0, lr, -ll, 1.0, 0.0,\n\n      -lr, 0.0, 0.0, 0.0, 1.0,\n      -lr, 0.0, -ll, 0.0, 0.0,\n      lr, 0.0, 0.0, 1.0, 1.0,\n      lr, 0.0, -ll, 1.0, 0.0,\n    ];\n    let laserIndices = [\n      0, 1, 2, 1, 3, 2,\n      4, 5, 6, 5, 7, 6,\n      8, 9, 10, 9, 11, 10,\n      12, 13, 14, 13, 15, 14,\n    ];\n\n    let laserVertexBuffer = this._renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(laserVerts));\n    let laserIndexBuffer = this._renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(laserIndices));\n\n    let laserIndexCount = laserIndices.length;\n\n    let laserAttribs = [\n      new PrimitiveAttribute('POSITION', laserVertexBuffer, 3, gl.FLOAT, 20, 0),\n      new PrimitiveAttribute('TEXCOORD_0', laserVertexBuffer, 2, gl.FLOAT, 20, 12),\n    ];\n\n    let laserPrimitive = new Primitive(laserAttribs, laserIndexCount);\n    laserPrimitive.setIndexBuffer(laserIndexBuffer);\n\n    let laserMaterial = new LaserMaterial();\n\n    let laserRenderPrimitive = this._renderer.createRenderPrimitive(laserPrimitive, laserMaterial);\n    let meshNode = new Node();\n    meshNode.addRenderPrimitive(laserRenderPrimitive);\n    return meshNode;\n  }\n\n  _createCursorMesh() {\n    let gl = this._renderer._gl;\n\n    // Cursor is a circular white dot with a dark \"shadow\" skirt around the edge\n    // that fades from black to transparent as it moves out from the center.\n    // Cursor verts are packed as [X, Y, Luminance, Opacity]\n    let cursorVerts = [];\n    let cursorIndices = [];\n\n    let segRad = (2.0 * Math.PI) / CURSOR_SEGMENTS;\n\n    // Cursor center\n    for (let i = 0; i < CURSOR_SEGMENTS; ++i) {\n      let rad = i * segRad;\n      let x = Math.cos(rad);\n      let y = Math.sin(rad);\n      cursorVerts.push(x * CURSOR_RADIUS, y * CURSOR_RADIUS, 1.0, CURSOR_OPACITY);\n\n      if (i > 1) {\n        cursorIndices.push(0, i-1, i);\n      }\n    }\n\n    let indexOffset = CURSOR_SEGMENTS;\n\n    // Cursor Skirt\n    for (let i = 0; i < CURSOR_SEGMENTS; ++i) {\n      let rad = i * segRad;\n      let x = Math.cos(rad);\n      let y = Math.sin(rad);\n      cursorVerts.push(x * CURSOR_RADIUS, y * CURSOR_RADIUS,\n          CURSOR_SHADOW_INNER_LUMINANCE, CURSOR_SHADOW_INNER_OPACITY);\n      cursorVerts.push(x * CURSOR_SHADOW_RADIUS, y * CURSOR_SHADOW_RADIUS,\n          CURSOR_SHADOW_OUTER_LUMINANCE, CURSOR_SHADOW_OUTER_OPACITY);\n\n      if (i > 0) {\n        let idx = indexOffset + (i * 2);\n        cursorIndices.push(idx-2, idx-1, idx);\n        cursorIndices.push(idx-1, idx+1, idx);\n      }\n    }\n\n    let idx = indexOffset + (CURSOR_SEGMENTS * 2);\n    cursorIndices.push(idx-2, idx-1, indexOffset);\n    cursorIndices.push(idx-1, indexOffset+1, indexOffset);\n\n    let cursorVertexBuffer = this._renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(cursorVerts));\n    let cursorIndexBuffer = this._renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(cursorIndices));\n\n    let cursorIndexCount = cursorIndices.length;\n\n    let cursorAttribs = [\n      new PrimitiveAttribute('POSITION', cursorVertexBuffer, 4, gl.FLOAT, 16, 0),\n    ];\n\n    let cursorPrimitive = new Primitive(cursorAttribs, cursorIndexCount);\n    cursorPrimitive.setIndexBuffer(cursorIndexBuffer);\n\n    let cursorMaterial = new CursorMaterial();\n    let cursorHiddenMaterial = new CursorHiddenMaterial();\n\n    // Cursor renders two parts: The bright opaque cursor for areas where it's\n    // not obscured and a more transparent, darker version for areas where it's\n    // behind another object.\n    let cursorRenderPrimitive = this._renderer.createRenderPrimitive(cursorPrimitive, cursorMaterial);\n    let cursorHiddenRenderPrimitive = this._renderer.createRenderPrimitive(cursorPrimitive, cursorHiddenMaterial);\n    let meshNode = new Node();\n    meshNode.addRenderPrimitive(cursorRenderPrimitive);\n    meshNode.addRenderPrimitive(cursorHiddenRenderPrimitive);\n    return meshNode;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nRenders simple text using a seven-segment LED style pattern. Only really good\nfor numbers and a limited number of other characters.\n*/\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\n\nconst TEXT_KERNING = 2.0;\n\nclass SevenSegmentMaterial extends Material {\n  get materialName() {\n    return 'SEVEN_SEGMENT_TEXT';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 0.0, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    precision mediump float;\n    const vec4 color = vec4(0.0, 1.0, 0.0, 1.0);\n\n    vec4 fragment_main() {\n      return color;\n    }`;\n  }\n}\n\nexport class SevenSegmentText extends Node {\n  constructor() {\n    super();\n\n    this._text = '';\n    this._charNodes = [];\n  }\n\n  onRendererChanged(renderer) {\n    this.clearNodes();\n    this._charNodes = [];\n\n    let vertices = [];\n    let segmentIndices = {};\n    let indices = [];\n\n    const width = 0.5;\n    const thickness = 0.25;\n\n    function defineSegment(id, left, top, right, bottom) {\n      let idx = vertices.length / 2;\n      vertices.push(\n          left, top,\n          right, top,\n          right, bottom,\n          left, bottom);\n\n      segmentIndices[id] = [\n        idx, idx+2, idx+1,\n        idx, idx+3, idx+2,\n      ];\n    }\n\n    let characters = {};\n    function defineCharacter(c, segments) {\n      let character = {\n        character: c,\n        offset: indices.length * 2,\n        count: 0,\n      };\n\n      for (let i = 0; i < segments.length; ++i) {\n        let idx = segments[i];\n        let segment = segmentIndices[idx];\n        character.count += segment.length;\n        indices.push(...segment);\n      }\n\n      characters[c] = character;\n    }\n\n    /* Segment layout is as follows:\n\n    |-0-|\n    3   4\n    |-1-|\n    5   6\n    |-2-|\n\n    */\n\n    defineSegment(0, -1, 1, width, 1-thickness);\n    defineSegment(1, -1, thickness*0.5, width, -thickness*0.5);\n    defineSegment(2, -1, -1+thickness, width, -1);\n    defineSegment(3, -1, 1, -1+thickness, -thickness*0.5);\n    defineSegment(4, width-thickness, 1, width, -thickness*0.5);\n    defineSegment(5, -1, thickness*0.5, -1+thickness, -1);\n    defineSegment(6, width-thickness, thickness*0.5, width, -1);\n\n\n    defineCharacter('0', [0, 2, 3, 4, 5, 6]);\n    defineCharacter('1', [4, 6]);\n    defineCharacter('2', [0, 1, 2, 4, 5]);\n    defineCharacter('3', [0, 1, 2, 4, 6]);\n    defineCharacter('4', [1, 3, 4, 6]);\n    defineCharacter('5', [0, 1, 2, 3, 6]);\n    defineCharacter('6', [0, 1, 2, 3, 5, 6]);\n    defineCharacter('7', [0, 4, 6]);\n    defineCharacter('8', [0, 1, 2, 3, 4, 5, 6]);\n    defineCharacter('9', [0, 1, 2, 3, 4, 6]);\n    defineCharacter('A', [0, 1, 3, 4, 5, 6]);\n    defineCharacter('B', [1, 2, 3, 5, 6]);\n    defineCharacter('C', [0, 2, 3, 5]);\n    defineCharacter('D', [1, 2, 4, 5, 6]);\n    defineCharacter('E', [0, 1, 2, 4, 6]);\n    defineCharacter('F', [0, 1, 3, 5]);\n    defineCharacter('P', [0, 1, 3, 4, 5]);\n    defineCharacter('-', [1]);\n    defineCharacter(' ', []);\n    defineCharacter('_', [2]); // Used for undefined characters\n\n    let gl = renderer.gl;\n    let vertexBuffer = renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(vertices));\n    let indexBuffer = renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));\n\n    let vertexAttribs = [\n      new PrimitiveAttribute('POSITION', vertexBuffer, 2, gl.FLOAT, 8, 0),\n    ];\n\n    let primitive = new Primitive(vertexAttribs, indices.length);\n    primitive.setIndexBuffer(indexBuffer);\n\n    let material = new SevenSegmentMaterial();\n\n    this._charPrimitives = {};\n    for (let char in characters) {\n      let charDef = characters[char];\n      primitive.elementCount = charDef.count;\n      primitive.indexByteOffset = charDef.offset;\n      this._charPrimitives[char] = renderer.createRenderPrimitive(primitive, material);\n    }\n\n    this.text = this._text;\n  }\n\n  get text() {\n    return this._text;\n  }\n\n  set text(value) {\n    this._text = value;\n\n    let i = 0;\n    let charPrimitive = null;\n    for (; i < value.length; ++i) {\n      if (value[i] in this._charPrimitives) {\n        charPrimitive = this._charPrimitives[value[i]];\n      } else {\n        charPrimitive = this._charPrimitives['_'];\n      }\n\n      if (this._charNodes.length <= i) {\n        let node = new Node();\n        node.addRenderPrimitive(charPrimitive);\n        let offset = i * TEXT_KERNING;\n        node.translation = [offset, 0, 0];\n        this._charNodes.push(node);\n        this.addNode(node);\n      } else {\n        // This is sort of an abuse of how these things are expected to work,\n        // but it's the cheapest thing I could think of that didn't break the\n        // world.\n        this._charNodes[i].clearRenderPrimitives();\n        this._charNodes[i].addRenderPrimitive(charPrimitive);\n        this._charNodes[i].visible = true;\n      }\n    }\n\n    // If there's any nodes left over make them invisible\n    for (; i < this._charNodes.length; ++i) {\n      this._charNodes[i].visible = false;\n    }\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nNode for displaying 360 equirect images as a skybox.\n*/\n\nimport {Material, RENDER_ORDER} from '../core/material.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {Node} from '../core/node.js';\nimport {UrlTexture} from '../core/texture.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nclass SkyboxMaterial extends Material {\n  constructor() {\n    super();\n    this.renderOrder = RENDER_ORDER.SKY;\n    this.state.depthFunc = GL.LEQUAL;\n    this.state.depthMask = false;\n\n    this.image = this.defineSampler('diffuse');\n\n    this.texCoordScaleOffset = this.defineUniform('texCoordScaleOffset',\n                                                      [1.0, 1.0, 0.0, 0.0,\n                                                       1.0, 1.0, 0.0, 0.0], 4);\n  }\n\n  get materialName() {\n    return 'SKYBOX';\n  }\n\n  get vertexSource() {\n    return `\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      // Drop the translation portion of the view matrix\n      view[3].xyz = vec3(0.0, 0.0, 0.0);\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n\n      // Returning the W component for both Z and W forces the geometry depth to\n      // the far plane. When combined with a depth func of LEQUAL this makes the\n      // sky write to any depth fragment that has not been written to yet.\n      return out_vec.xyww;\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }`;\n  }\n}\n\nexport class SkyboxNode extends Node {\n  constructor(options) {\n    super();\n\n    this._url = options.url;\n    this._displayMode = options.displayMode || 'mono';\n    this._rotationY = options.rotationY || 0;\n  }\n\n  onRendererChanged(renderer) {\n    let vertices = [];\n    let indices = [];\n\n    let latSegments = 40;\n    let lonSegments = 40;\n\n    // Create the vertices/indices\n    for (let i=0; i <= latSegments; ++i) {\n      let theta = i * Math.PI / latSegments;\n      let sinTheta = Math.sin(theta);\n      let cosTheta = Math.cos(theta);\n\n      let idxOffsetA = i * (lonSegments+1);\n      let idxOffsetB = (i+1) * (lonSegments+1);\n\n      for (let j=0; j <= lonSegments; ++j) {\n        let phi = (j * 2 * Math.PI / lonSegments) + this._rotationY;\n        let x = Math.sin(phi) * sinTheta;\n        let y = cosTheta;\n        let z = -Math.cos(phi) * sinTheta;\n        let u = (j / lonSegments);\n        let v = (i / latSegments);\n\n        // Vertex shader will force the geometry to the far plane, so the\n        // radius of the sphere is immaterial.\n        vertices.push(x, y, z, u, v);\n\n        if (i < latSegments && j < lonSegments) {\n          let idxA = idxOffsetA+j;\n          let idxB = idxOffsetB+j;\n\n          indices.push(idxA, idxB, idxA+1,\n                       idxB, idxB+1, idxA+1);\n        }\n      }\n    }\n\n    let vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(vertices));\n    let indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));\n\n    let attribs = [\n      new PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 20, 0),\n      new PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 20, 12),\n    ];\n\n    let primitive = new Primitive(attribs, indices.length);\n    primitive.setIndexBuffer(indexBuffer);\n\n    let material = new SkyboxMaterial();\n    material.image.texture = new UrlTexture(this._url);\n\n    switch (this._displayMode) {\n      case 'mono':\n        material.texCoordScaleOffset.value = [1.0, 1.0, 0.0, 0.0,\n                                              1.0, 1.0, 0.0, 0.0];\n        break;\n      case 'stereoTopBottom':\n        material.texCoordScaleOffset.value = [1.0, 0.5, 0.0, 0.0,\n                                              1.0, 0.5, 0.0, 0.5];\n        break;\n      case 'stereoLeftRight':\n        material.texCoordScaleOffset.value = [0.5, 1.0, 0.0, 0.0,\n                                              0.5, 1.0, 0.5, 0.0];\n        break;\n    }\n\n    let renderPrimitive = renderer.createRenderPrimitive(primitive, material);\n    this.addRenderPrimitive(renderPrimitive);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nHeavily inspired by Mr. Doobs stats.js, this FPS counter is rendered completely\nwith WebGL, allowing it to be shown in cases where overlaid HTML elements aren't\nusable (like WebXR), or if you want the FPS counter to be rendered as part of\nyour scene.\n*/\n\nimport {Material} from '../core/material.js';\nimport {Node} from '../core/node.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {SevenSegmentText} from './seven-segment-text.js';\n\nconst SEGMENTS = 30;\nconst MAX_FPS = 90;\n\nclass StatsMaterial extends Material {\n  get materialName() {\n    return 'STATS_VIEWER';\n  }\n\n  get vertexSource() {\n    return `\n    attribute vec3 POSITION;\n    attribute vec3 COLOR_0;\n    varying vec4 vColor;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vColor = vec4(COLOR_0, 1.0);\n      return proj * view * model * vec4(POSITION, 1.0);\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    precision mediump float;\n    varying vec4 vColor;\n\n    vec4 fragment_main() {\n      return vColor;\n    }`;\n  }\n}\n\nfunction segmentToX(i) {\n  return ((0.9/SEGMENTS) * i) - 0.45;\n}\n\nfunction fpsToY(value) {\n  return (Math.min(value, MAX_FPS) * (0.7 / MAX_FPS)) - 0.45;\n}\n\nfunction fpsToRGB(value) {\n  return {\n    r: Math.max(0.0, Math.min(1.0, 1.0 - (value/60))),\n    g: Math.max(0.0, Math.min(1.0, ((value-15)/(MAX_FPS-15)))),\n    b: Math.max(0.0, Math.min(1.0, ((value-15)/(MAX_FPS-15)))),\n  };\n}\n\nlet now = (window.performance && performance.now) ? performance.now.bind(performance) : Date.now;\n\nexport class StatsViewer extends Node {\n  constructor() {\n    super();\n\n    this._performanceMonitoring = false;\n\n    this._startTime = now();\n    this._prevFrameTime = this._startTime;\n    this._prevGraphUpdateTime = this._startTime;\n    this._frames = 0;\n    this._fpsAverage = 0;\n    this._fpsMin = 0;\n    this._fpsStep = this._performanceMonitoring ? 1000 : 250;\n    this._lastSegment = 0;\n\n    this._fpsVertexBuffer = null;\n    this._fpsRenderPrimitive = null;\n    this._fpsNode = null;\n\n    this._sevenSegmentNode = new SevenSegmentText();\n    // Hard coded because it doesn't change:\n    // Scale by 0.075 in X and Y\n    // Translate into upper left corner w/ z = 0.02\n    this._sevenSegmentNode.matrix = new Float32Array([\n      0.075, 0, 0, 0,\n      0, 0.075, 0, 0,\n      0, 0, 1, 0,\n      -0.3625, 0.3625, 0.02, 1,\n    ]);\n  }\n\n  onRendererChanged(renderer) {\n    this.clearNodes();\n\n    let gl = renderer.gl;\n\n    let fpsVerts = [];\n    let fpsIndices = [];\n\n    // Graph geometry\n    for (let i = 0; i < SEGMENTS; ++i) {\n      // Bar top\n      fpsVerts.push(segmentToX(i), fpsToY(0), 0.02, 0.0, 1.0, 1.0);\n      fpsVerts.push(segmentToX(i+1), fpsToY(0), 0.02, 0.0, 1.0, 1.0);\n\n      // Bar bottom\n      fpsVerts.push(segmentToX(i), fpsToY(0), 0.02, 0.0, 1.0, 1.0);\n      fpsVerts.push(segmentToX(i+1), fpsToY(0), 0.02, 0.0, 1.0, 1.0);\n\n      let idx = i * 4;\n      fpsIndices.push(idx, idx+3, idx+1,\n                       idx+3, idx, idx+2);\n    }\n\n    function addBGSquare(left, bottom, right, top, z, r, g, b) {\n      let idx = fpsVerts.length / 6;\n\n      fpsVerts.push(left, bottom, z, r, g, b);\n      fpsVerts.push(right, top, z, r, g, b);\n      fpsVerts.push(left, top, z, r, g, b);\n      fpsVerts.push(right, bottom, z, r, g, b);\n\n      fpsIndices.push(idx, idx+1, idx+2,\n                       idx, idx+3, idx+1);\n    }\n\n    // Panel Background\n    addBGSquare(-0.5, -0.5, 0.5, 0.5, 0.0, 0.0, 0.0, 0.125);\n\n    // FPS Background\n    addBGSquare(-0.45, -0.45, 0.45, 0.25, 0.01, 0.0, 0.0, 0.4);\n\n    // 30 FPS line\n    addBGSquare(-0.45, fpsToY(30), 0.45, fpsToY(32), 0.015, 0.5, 0.0, 0.5);\n\n    // 60 FPS line\n    addBGSquare(-0.45, fpsToY(60), 0.45, fpsToY(62), 0.015, 0.2, 0.0, 0.75);\n\n    this._fpsVertexBuffer = renderer.createRenderBuffer(gl.ARRAY_BUFFER, new Float32Array(fpsVerts), gl.DYNAMIC_DRAW);\n    let fpsIndexBuffer = renderer.createRenderBuffer(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(fpsIndices));\n\n    let fpsAttribs = [\n      new PrimitiveAttribute('POSITION', this._fpsVertexBuffer, 3, gl.FLOAT, 24, 0),\n      new PrimitiveAttribute('COLOR_0', this._fpsVertexBuffer, 3, gl.FLOAT, 24, 12),\n    ];\n\n    let fpsPrimitive = new Primitive(fpsAttribs, fpsIndices.length);\n    fpsPrimitive.setIndexBuffer(fpsIndexBuffer);\n    fpsPrimitive.setBounds([-0.5, -0.5, 0.0], [0.5, 0.5, 0.015]);\n\n    this._fpsRenderPrimitive = renderer.createRenderPrimitive(fpsPrimitive, new StatsMaterial());\n    this._fpsNode = new Node();\n    this._fpsNode.addRenderPrimitive(this._fpsRenderPrimitive);\n\n    this.addNode(this._fpsNode);\n    this.addNode(this._sevenSegmentNode);\n  }\n\n  get performanceMonitoring() {\n    return this._performanceMonitoring;\n  }\n\n  set performanceMonitoring(value) {\n    this._performanceMonitoring = value;\n    this._fpsStep = value ? 1000 : 250;\n  }\n\n  begin() {\n    this._startTime = now();\n  }\n\n  end() {\n    let time = now();\n\n    let frameFps = 1000 / (time - this._prevFrameTime);\n    this._prevFrameTime = time;\n    this._fpsMin = this._frames ? Math.min(this._fpsMin, frameFps) : frameFps;\n    this._frames++;\n\n    if (time > this._prevGraphUpdateTime + this._fpsStep) {\n      let intervalTime = time - this._prevGraphUpdateTime;\n      this._fpsAverage = Math.round(1000 / (intervalTime / this._frames));\n\n      // Draw both average and minimum FPS for this period\n      // so that dropped frames are more clearly visible.\n      this._updateGraph(this._fpsMin, this._fpsAverage);\n      if (this._performanceMonitoring) {\n        console.log(`Average FPS: ${this._fpsAverage} Min FPS: ${this._fpsMin}`);\n      }\n\n      this._prevGraphUpdateTime = time;\n      this._frames = 0;\n      this._fpsMin = 0;\n    }\n  }\n\n  _updateGraph(valueLow, valueHigh) {\n    let color = fpsToRGB(valueLow);\n    // Draw a range from the low to high value. Artificially widen the\n    // range a bit to ensure that near-equal values still remain\n    // visible - the logic here should match that used by the\n    // \"60 FPS line\" setup below. Hitting 60fps consistently will\n    // keep the top half of the 60fps background line visible.\n    let y0 = fpsToY(valueLow - 1);\n    let y1 = fpsToY(valueHigh + 1);\n\n    // Update the current segment with the new FPS value\n    let updateVerts = [\n      segmentToX(this._lastSegment), y1, 0.02, color.r, color.g, color.b,\n      segmentToX(this._lastSegment+1), y1, 0.02, color.r, color.g, color.b,\n      segmentToX(this._lastSegment), y0, 0.02, color.r, color.g, color.b,\n      segmentToX(this._lastSegment+1), y0, 0.02, color.r, color.g, color.b,\n    ];\n\n    // Re-shape the next segment into the green \"progress\" line\n    color.r = 0.2;\n    color.g = 1.0;\n    color.b = 0.2;\n\n    if (this._lastSegment == SEGMENTS - 1) {\n      // If we're updating the last segment we need to do two bufferSubDatas\n      // to update the segment and turn the first segment into the progress line.\n      this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts),\n                                        this._lastSegment * 24 * 4);\n      updateVerts = [\n        segmentToX(0), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b,\n        segmentToX(.25), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b,\n        segmentToX(0), fpsToY(0), 0.02, color.r, color.g, color.b,\n        segmentToX(.25), fpsToY(0), 0.02, color.r, color.g, color.b,\n      ];\n      this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts), 0);\n    } else {\n      updateVerts.push(\n        segmentToX(this._lastSegment+1), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b,\n        segmentToX(this._lastSegment+1.25), fpsToY(MAX_FPS), 0.02, color.r, color.g, color.b,\n        segmentToX(this._lastSegment+1), fpsToY(0), 0.02, color.r, color.g, color.b,\n        segmentToX(this._lastSegment+1.25), fpsToY(0), 0.02, color.r, color.g, color.b\n      );\n      this._renderer.updateRenderBuffer(this._fpsVertexBuffer, new Float32Array(updateVerts),\n                                        this._lastSegment * 24 * 4);\n    }\n\n    this._lastSegment = (this._lastSegment+1) % SEGMENTS;\n\n    this._sevenSegmentNode.text = `${this._fpsAverage} FP5`;\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nNode for displaying 2D or stereo videos on a quad.\n*/\n\nimport {Material} from '../core/material.js';\nimport {Primitive, PrimitiveAttribute} from '../core/primitive.js';\nimport {Node} from '../core/node.js';\nimport {VideoTexture} from '../core/texture.js';\n\nconst GL = WebGLRenderingContext; // For enums\n\nclass VideoMaterial extends Material {\n  constructor() {\n    super();\n\n    this.image = this.defineSampler('diffuse');\n\n    this.texCoordScaleOffset = this.defineUniform('texCoordScaleOffset',\n                                                      [1.0, 1.0, 0.0, 0.0,\n                                                       1.0, 1.0, 0.0, 0.0], 4);\n  }\n\n  get materialName() {\n    return 'VIDEO_PLAYER';\n  }\n\n  get vertexSource() {\n    return `\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n      return out_vec;\n    }`;\n  }\n\n  get fragmentSource() {\n    return `\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }`;\n  }\n}\n\nexport class VideoNode extends Node {\n  constructor(options) {\n    super();\n\n    this._video = options.video;\n    this._displayMode = options.displayMode || 'mono';\n\n    this._video_texture = new VideoTexture(this._video);\n  }\n\n  get aspectRatio() {\n    let width = this._video.videoWidth;\n    let height = this._video.videoHeight;\n\n    switch (this._displayMode) {\n      case 'stereoTopBottom': height *= 0.5; break;\n      case 'stereoLeftRight': width *= 0.5; break;\n    }\n\n    if (!height || !width) {\n      return 1;\n    }\n\n    return width / height;\n  }\n\n  onRendererChanged(renderer) {\n    let vertices = [\n      -1.0, 1.0, 0.0, 0.0, 0.0,\n       1.0, 1.0, 0.0, 1.0, 0.0,\n       1.0, -1.0, 0.0, 1.0, 1.0,\n      -1.0, -1.0, 0.0, 0.0, 1.0,\n    ];\n    let indices = [\n      0, 2, 1,\n      0, 3, 2,\n    ];\n\n    let vertexBuffer = renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(vertices));\n    let indexBuffer = renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));\n\n    let attribs = [\n      new PrimitiveAttribute('POSITION', vertexBuffer, 3, GL.FLOAT, 20, 0),\n      new PrimitiveAttribute('TEXCOORD_0', vertexBuffer, 2, GL.FLOAT, 20, 12),\n    ];\n\n    let primitive = new Primitive(attribs, indices.length);\n    primitive.setIndexBuffer(indexBuffer);\n    primitive.setBounds([-1.0, -1.0, 0.0], [1.0, 1.0, 0.015]);\n\n    let material = new VideoMaterial();\n    material.image.texture = this._video_texture;\n\n    switch (this._displayMode) {\n      case 'mono':\n        material.texCoordScaleOffset.value = [1.0, 1.0, 0.0, 0.0,\n                                                 1.0, 1.0, 0.0, 0.0];\n        break;\n      case 'stereoTopBottom':\n        material.texCoordScaleOffset.value = [1.0, 0.5, 0.0, 0.0,\n                                                 1.0, 0.5, 0.0, 0.5];\n        break;\n      case 'stereoLeftRight':\n        material.texCoordScaleOffset.value = [0.5, 1.0, 0.0, 0.0,\n                                                 0.5, 1.0, 0.5, 0.0];\n        break;\n    }\n\n    let renderPrimitive = renderer.createRenderPrimitive(primitive, material);\n    this.addRenderPrimitive(renderPrimitive);\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {RenderView} from '../core/renderer.js';\nimport {InputRenderer} from '../nodes/input-renderer.js';\nimport {StatsViewer} from '../nodes/stats-viewer.js';\nimport {Node} from '../core/node.js';\nimport {vec3, quat} from '../math/gl-matrix.js';\n\nexport class WebXRView extends RenderView {\n  constructor(view, pose, layer) {\n    super(\n      view ? view.projectionMatrix : null,\n      (pose && view) ? view.viewMatrix : null,\n      (layer && view) ? layer.getViewport(view) : null,\n      view ? view.eye : 'left'\n    );\n  }\n}\n\nexport class Scene extends Node {\n  constructor() {\n    super();\n\n    this._timestamp = -1;\n    this._frameDelta = 0;\n    this._statsStanding = false;\n    this._stats = null;\n    this._statsEnabled = false;\n    this.enableStats(true); // Ensure the stats are added correctly by default.\n\n    this._inputRenderer = null;\n    this._resetInputEndFrame = true;\n\n    this._lastTimestamp = 0;\n\n    this._hoverFrame = 0;\n    this._hoveredNodes = [];\n\n    this.clear = true;\n  }\n\n  setRenderer(renderer) {\n    this._setRenderer(renderer);\n  }\n\n  loseRenderer() {\n    if (this._renderer) {\n      this._stats = null;\n      this._renderer = null;\n      this._inputRenderer = null;\n    }\n  }\n\n  get inputRenderer() {\n    if (!this._inputRenderer) {\n      this._inputRenderer = new InputRenderer();\n      this.addNode(this._inputRenderer);\n    }\n    return this._inputRenderer;\n  }\n\n  // Helper function that automatically adds the appropriate visual elements for\n  // all input sources.\n  updateInputSources(frame, refSpace) {\n    // FIXME: Check for the existence of the API first. This check should be\n    // removed once the input API is part of the official spec.\n    if (!frame.session.getInputSources) {\n      return;\n    }\n\n    let inputSources = frame.session.getInputSources();\n\n    let newHoveredNodes = [];\n    let lastHoverFrame = this._hoverFrame;\n    this._hoverFrame++;\n\n    for (let inputSource of inputSources) {\n      let inputPose = frame.getInputPose(inputSource, refSpace);\n\n      if (!inputPose) {\n        continue;\n      }\n\n      // Any time that we have a grip matrix, we'll render a controller.\n      if (inputPose.gripTransform.matrix) {\n        this.inputRenderer.addController(inputPose.gripTransform.matrix);\n      }\n\n      if (inputPose.targetRay) {\n        if (inputSource.targetRayMode == 'tracked-pointer') {\n          // If we have a pointer matrix and the pointer origin is the users\n          // hand (as opposed to their head or the screen) use it to render\n          // a ray coming out of the input device to indicate the pointer\n          // direction.\n          this.inputRenderer.addLaserPointer(inputPose.targetRay);\n        }\n\n        // If we have a pointer matrix we can also use it to render a cursor\n        // for both handheld and gaze-based input sources.\n\n        // Check and see if the pointer is pointing at any selectable objects.\n        let hitResult = this.hitTest(inputPose.targetRay);\n\n        if (hitResult) {\n          // Render a cursor at the intersection point.\n          this.inputRenderer.addCursor(hitResult.intersection);\n\n          if (hitResult.node._hoverFrameId != lastHoverFrame) {\n            hitResult.node.onHoverStart();\n          }\n          hitResult.node._hoverFrameId = this._hoverFrame;\n          newHoveredNodes.push(hitResult.node);\n        } else {\n          // Statically render the cursor 1 meters down the ray since we didn't\n          // hit anything selectable.\n          let cursorDistance = 1.0;\n          let cursorPos = vec3.fromValues(\n              inputPose.targetRay.origin.x,\n              inputPose.targetRay.origin.y,\n              inputPose.targetRay.origin.z\n              );\n          vec3.add(cursorPos, cursorPos, [\n              inputPose.targetRay.direction.x * cursorDistance,\n              inputPose.targetRay.direction.y * cursorDistance,\n              inputPose.targetRay.direction.z * cursorDistance,\n              ]);\n          // let cursorPos = vec3.fromValues(0, 0, -1.0);\n          // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay);\n          this.inputRenderer.addCursor(cursorPos);\n        }\n      }\n    }\n\n    for (let hoverNode of this._hoveredNodes) {\n      if (hoverNode._hoverFrameId != this._hoverFrame) {\n        hoverNode.onHoverEnd();\n      }\n    }\n\n    this._hoveredNodes = newHoveredNodes;\n  }\n\n  handleSelect(inputSource, frame, refSpace) {\n    let inputPose = frame.getInputPose(inputSource, refSpace);\n\n    if (!inputPose) {\n      return;\n    }\n\n    this.handleSelectPointer(inputPose.targetRay);\n  }\n\n  handleSelectPointer(targetRay) {\n    if (targetRay) {\n      // Check and see if the pointer is pointing at any selectable objects.\n      let hitResult = this.hitTest(targetRay);\n\n      if (hitResult) {\n        // Render a cursor at the intersection point.\n        hitResult.node.handleSelect();\n      }\n    }\n  }\n\n  enableStats(enable) {\n    if (enable == this._statsEnabled) {\n      return;\n    }\n\n    this._statsEnabled = enable;\n\n    if (enable) {\n      this._stats = new StatsViewer();\n      this._stats.selectable = true;\n      this.addNode(this._stats);\n\n      if (this._statsStanding) {\n        this._stats.translation = [0, 1.4, -0.75];\n      } else {\n        this._stats.translation = [0, -0.3, -0.5];\n      }\n      this._stats.scale = [0.3, 0.3, 0.3];\n      quat.fromEuler(this._stats.rotation, -45.0, 0.0, 0.0);\n    } else if (!enable) {\n      if (this._stats) {\n        this.removeNode(this._stats);\n        this._stats = null;\n      }\n    }\n  }\n\n  standingStats(enable) {\n    this._statsStanding = enable;\n    if (this._stats) {\n      if (this._statsStanding) {\n        this._stats.translation = [0, 1.4, -0.75];\n      } else {\n        this._stats.translation = [0, -0.3, -0.5];\n      }\n      this._stats.scale = [0.3, 0.3, 0.3];\n      quat.fromEuler(this._stats.rotation, -45.0, 0.0, 0.0);\n    }\n  }\n\n  draw(projectionMatrix, viewMatrix, eye) {\n    let view = new RenderView();\n    view.projectionMatrix = projectionMatrix;\n    view.viewMatrix = viewMatrix;\n    if (eye) {\n      view.eye = eye;\n    }\n\n    this.drawViewArray([view]);\n  }\n\n  /** Draws the scene into the base layer of the XRFrame's session */\n  drawXRFrame(xrFrame, pose) {\n    if (!this._renderer || !pose) {\n      return;\n    }\n\n    let gl = this._renderer.gl;\n    let session = xrFrame.session;\n    // Assumed to be a XRWebGLLayer for now.\n    let layer = session.renderState.baseLayer;\n\n    if (!gl) {\n      return;\n    }\n\n    gl.bindFramebuffer(gl.FRAMEBUFFER, layer.framebuffer);\n\n    if (this.clear) {\n      gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);\n    }\n\n    let views = [];\n    for (let view of pose.views) {\n      views.push(new WebXRView(view, pose, layer));\n    }\n\n    this.drawViewArray(views);\n  }\n\n  drawViewArray(views) {\n    // Don't draw when we don't have a valid context\n    if (!this._renderer) {\n      return;\n    }\n\n    this._renderer.drawViews(views, this);\n  }\n\n  startFrame() {\n    let prevTimestamp = this._timestamp;\n    this._timestamp = performance.now();\n    if (this._stats) {\n      this._stats.begin();\n    }\n\n    if (prevTimestamp >= 0) {\n      this._frameDelta = this._timestamp - prevTimestamp;\n    } else {\n      this._frameDelta = 0;\n    }\n\n    this._update(this._timestamp, this._frameDelta);\n\n    return this._frameDelta;\n  }\n\n  endFrame() {\n    if (this._inputRenderer && this._resetInputEndFrame) {\n      this._inputRenderer.reset();\n    }\n\n    if (this._stats) {\n      this._stats.end();\n    }\n  }\n\n  // Override to load scene resources on construction or context restore.\n  onLoadScene(renderer) {\n    return Promise.resolve();\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\nimport {mat4} from '../math/gl-matrix.js';\n\nconst LOOK_SPEED = 0.0025;\n\nexport class FallbackHelper {\n  constructor(scene, gl) {\n    this.scene = scene;\n    this.gl = gl;\n    this._emulateStage = false;\n\n    this.lookYaw = 0;\n    this.lookPitch = 0;\n\n    this.viewMatrix = mat4.create();\n\n    let projectionMatrix = mat4.create();\n    this.projectionMatrix = projectionMatrix;\n\n    // Using a simple identity matrix for the view.\n    mat4.identity(this.viewMatrix);\n\n    // We need to track the canvas size in order to resize the WebGL\n    // backbuffer width and height, as well as update the projection matrix\n    // and adjust the viewport.\n    function onResize() {\n      gl.canvas.width = gl.canvas.offsetWidth * window.devicePixelRatio;\n      gl.canvas.height = gl.canvas.offsetHeight * window.devicePixelRatio;\n      mat4.perspective(projectionMatrix, Math.PI*0.4,\n                       gl.canvas.width/gl.canvas.height,\n                       0.1, 1000.0);\n      gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);\n    }\n    window.addEventListener('resize', onResize);\n    onResize();\n\n    // Upding the view matrix with touch or mouse events.\n    let canvas = gl.canvas;\n    let lastTouchX = 0;\n    let lastTouchY = 0;\n    canvas.addEventListener('touchstart', (ev) => {\n      if (ev.touches.length == 2) {\n        lastTouchX = ev.touches[1].pageX;\n        lastTouchY = ev.touches[1].pageY;\n      }\n    });\n    canvas.addEventListener('touchmove', (ev) => {\n      // Rotate the view when two fingers are being used.\n      if (ev.touches.length == 2) {\n        this.onLook(ev.touches[1].pageX - lastTouchX, ev.touches[1].pageY - lastTouchY);\n        lastTouchX = ev.touches[1].pageX;\n        lastTouchY = ev.touches[1].pageY;\n      }\n    });\n    canvas.addEventListener('mousemove', (ev) => {\n      // Only rotate when the right button is pressed.\n      if (ev.buttons & 2) {\n        this.onLook(ev.movementX, ev.movementY);\n      }\n    });\n    canvas.addEventListener('contextmenu', (ev) => {\n      // Prevent context menus on the canvas so that we can use right click to rotate.\n      ev.preventDefault();\n    });\n\n    this.boundOnFrame = this.onFrame.bind(this);\n    window.requestAnimationFrame(this.boundOnFrame);\n  }\n\n  onLook(yaw, pitch) {\n    this.lookYaw += yaw * LOOK_SPEED;\n    this.lookPitch += pitch * LOOK_SPEED;\n\n    // Clamp pitch rotation beyond looking straight up or down.\n    if (this.lookPitch < -Math.PI*0.5) {\n        this.lookPitch = -Math.PI*0.5;\n    }\n    if (this.lookPitch > Math.PI*0.5) {\n        this.lookPitch = Math.PI*0.5;\n    }\n\n    this.updateView();\n  }\n\n  onFrame(t) {\n    let gl = this.gl;\n    window.requestAnimationFrame(this.boundOnFrame);\n\n    this.scene.startFrame();\n\n    // We can skip setting the framebuffer and viewport every frame, because\n    // it won't change from frame to frame and we're updating the viewport\n    // only when we resize for efficency.\n    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);\n\n    // We're drawing with our own projection and view matrix now, and we\n    // don't have a list of view to loop through, but otherwise all of the\n    // WebGL drawing logic is exactly the same.\n    this.scene.draw(this.projectionMatrix, this.viewMatrix);\n\n    this.scene.endFrame();\n  }\n\n  get emulateStage() {\n    return this._emulateStage;\n  }\n\n  set emulateStage(value) {\n    this._emulateStage = value;\n    this.updateView();\n  }\n\n  updateView() {\n    mat4.identity(this.viewMatrix);\n\n    mat4.rotateX(this.viewMatrix, this.viewMatrix, -this.lookPitch);\n    mat4.rotateY(this.viewMatrix, this.viewMatrix, -this.lookYaw);\n\n    // If we're emulating a stage frame of reference we'll need to move the view\n    // matrix roughly a meter and a half up in the air.\n    if (this._emulateStage) {\n      mat4.translate(this.viewMatrix, this.viewMatrix, [0, -1.6, 0]);\n    }\n  }\n}\n","// Copyright 2018 The Immersive Web Community Group\n//\n// Permission is hereby granted, free of charge, to any person obtaining a copy\n// of this software and associated documentation files (the \"Software\"), to deal\n// in the Software without restriction, including without limitation the rights\n// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell\n// copies of the Software, and to permit persons to whom the Software is\n// furnished to do so, subject to the following conditions:\n\n// The above copyright notice and this permission notice shall be included in\n// all copies or substantial portions of the Software.\n\n// THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR\n// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,\n// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE\n// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER\n// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,\n// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE\n// SOFTWARE.\n\n/*\nProvides a simple way to get values from the query string if they're present\nand use a default value if not. Not strictly a \"WebGL\" utility, but I use it\nfrequently enough for debugging that I wanted to include it here.\n\nExample:\nFor the URL http://example.com/index.html?particleCount=1000\n\nQueryArgs.getInt(\"particleCount\", 100); // URL overrides, returns 1000\nQueryArgs.getInt(\"particleSize\", 10); // Not in URL, returns default of 10\n*/\n\nlet urlArgs = null;\nwindow.onhashchange = function() {\n  // Force re-parsing on next access\n  urlArgs = null;\n};\n\nfunction ensureArgsCached() {\n  if (!urlArgs) {\n    urlArgs = {};\n    let query = window.location.search.substring(1) || window.location.hash.substring(1);\n    let vars = query.split('&');\n    for (let i = 0; i < vars.length; i++) {\n      let pair = vars[i].split('=');\n      urlArgs[pair[0].toLowerCase()] = decodeURIComponent(pair[1]);\n    }\n  }\n}\n\nexport class QueryArgs {\n  static getString(name, defaultValue) {\n    ensureArgsCached();\n    let lcaseName = name.toLowerCase();\n    if (lcaseName in urlArgs) {\n      return urlArgs[lcaseName];\n    }\n    return defaultValue;\n  }\n\n  static getInt(name, defaultValue) {\n    ensureArgsCached();\n    let lcaseName = name.toLowerCase();\n    if (lcaseName in urlArgs) {\n      return parseInt(urlArgs[lcaseName], 10);\n    }\n    return defaultValue;\n  }\n\n  static getFloat(name, defaultValue) {\n    ensureArgsCached();\n    let lcaseName = name.toLowerCase();\n    if (lcaseName in urlArgs) {\n      return parseFloat(urlArgs[lcaseName]);\n    }\n    return defaultValue;\n  }\n\n  static getBool(name, defaultValue) {\n    ensureArgsCached();\n    let lcaseName = name.toLowerCase();\n    if (lcaseName in urlArgs) {\n      return parseInt(urlArgs[lcaseName], 10) != 0;\n    }\n    return defaultValue;\n  }\n}\n"],"sourceRoot":""}
\ No newline at end of file
diff --git a/js/cottontail/build/cottontail.js b/js/cottontail/build/cottontail.js
deleted file mode 100644
index 5b9bab7a0..000000000
--- a/js/cottontail/build/cottontail.js
+++ /dev/null
@@ -1,22 +0,0 @@
-/*!
- * Copyright 2018 The Immersive Web Community Group
- * 
- * Permission is hereby granted, free of charge, to any person obtaining a copy of
- * this software and associated documentation files (the "Software"), to deal in
- * the Software without restriction, including without limitation the rights to
- * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
- * the Software, and to permit persons to whom the Software is furnished to do so,
- * subject to the following conditions:
- * 
- * The above copyright notice and this permission notice shall be included in all
- * copies or substantial portions of the Software.
- * 
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
- * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
- * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
- * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- * 
- */
-!function(t,e){if("object"==typeof exports&&"object"==typeof module)module.exports=e();else if("function"==typeof define&&define.amd)define([],e);else{var r=e();for(var n in r)("object"==typeof exports?exports:t)[n]=r[n]}}(window,function(){return function(t){var e={};function r(n){if(e[n])return e[n].exports;var i=e[n]={i:n,l:!1,exports:{}};return t[n].call(i.exports,i,i.exports,r),i.l=!0,i.exports}return r.m=t,r.c=e,r.d=function(t,e,n){r.o(t,e)||Object.defineProperty(t,e,{enumerable:!0,get:n})},r.r=function(t){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(t,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(t,"__esModule",{value:!0})},r.t=function(t,e){if(1&e&&(t=r(t)),8&e)return t;if(4&e&&"object"==typeof t&&t&&t.__esModule)return t;var n=Object.create(null);if(r.r(n),Object.defineProperty(n,"default",{enumerable:!0,value:t}),2&e&&"string"!=typeof t)for(var i in t)r.d(n,i,function(e){return t[e]}.bind(null,i));return n},r.n=function(t){var e=t&&t.__esModule?function(){return t.default}:function(){return t};return r.d(e,"a",e),e},r.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},r.p="",r(r.s=15)}([function(t,e,r){"use strict";r.r(e),r.d(e,"EPSILON",function(){return n}),r.d(e,"ARRAY_TYPE",function(){return i}),r.d(e,"RANDOM",function(){return o}),r.d(e,"setMatrixArrayType",function(){return a}),r.d(e,"toRadian",function(){return s}),r.d(e,"equals",function(){return c});const n=1e-6;let i="undefined"!=typeof Float32Array?Float32Array:Array;const o=Math.random;function a(t){i=t}const u=Math.PI/180;function s(t){return t*u}function c(t,e){return Math.abs(t-e)<=n*Math.max(1,Math.abs(t),Math.abs(e))}},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"fromValues",function(){return a}),r.d(e,"copy",function(){return u}),r.d(e,"set",function(){return s}),r.d(e,"add",function(){return c}),r.d(e,"subtract",function(){return f}),r.d(e,"multiply",function(){return l}),r.d(e,"divide",function(){return h}),r.d(e,"ceil",function(){return d}),r.d(e,"floor",function(){return v}),r.d(e,"min",function(){return _}),r.d(e,"max",function(){return m}),r.d(e,"round",function(){return p}),r.d(e,"scale",function(){return y}),r.d(e,"scaleAndAdd",function(){return b}),r.d(e,"distance",function(){return g}),r.d(e,"squaredDistance",function(){return M}),r.d(e,"length",function(){return x}),r.d(e,"squaredLength",function(){return T}),r.d(e,"negate",function(){return E}),r.d(e,"inverse",function(){return w}),r.d(e,"normalize",function(){return O}),r.d(e,"dot",function(){return R}),r.d(e,"lerp",function(){return P}),r.d(e,"random",function(){return S}),r.d(e,"transformMat4",function(){return A}),r.d(e,"transformQuat",function(){return N}),r.d(e,"str",function(){return C}),r.d(e,"exactEquals",function(){return I}),r.d(e,"equals",function(){return L}),r.d(e,"sub",function(){return k}),r.d(e,"mul",function(){return F}),r.d(e,"div",function(){return D}),r.d(e,"dist",function(){return j}),r.d(e,"sqrDist",function(){return B}),r.d(e,"len",function(){return U}),r.d(e,"sqrLen",function(){return V}),r.d(e,"forEach",function(){return Y});var n=r(0);function i(){let t=new n.ARRAY_TYPE(4);return n.ARRAY_TYPE!=Float32Array&&(t[0]=0,t[1]=0,t[2]=0,t[3]=0),t}function o(t){let e=new n.ARRAY_TYPE(4);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e}function a(t,e,r,i){let o=new n.ARRAY_TYPE(4);return o[0]=t,o[1]=e,o[2]=r,o[3]=i,o}function u(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t}function s(t,e,r,n,i){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t}function c(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t}function f(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t[3]=e[3]-r[3],t}function l(t,e,r){return t[0]=e[0]*r[0],t[1]=e[1]*r[1],t[2]=e[2]*r[2],t[3]=e[3]*r[3],t}function h(t,e,r){return t[0]=e[0]/r[0],t[1]=e[1]/r[1],t[2]=e[2]/r[2],t[3]=e[3]/r[3],t}function d(t,e){return t[0]=Math.ceil(e[0]),t[1]=Math.ceil(e[1]),t[2]=Math.ceil(e[2]),t[3]=Math.ceil(e[3]),t}function v(t,e){return t[0]=Math.floor(e[0]),t[1]=Math.floor(e[1]),t[2]=Math.floor(e[2]),t[3]=Math.floor(e[3]),t}function _(t,e,r){return t[0]=Math.min(e[0],r[0]),t[1]=Math.min(e[1],r[1]),t[2]=Math.min(e[2],r[2]),t[3]=Math.min(e[3],r[3]),t}function m(t,e,r){return t[0]=Math.max(e[0],r[0]),t[1]=Math.max(e[1],r[1]),t[2]=Math.max(e[2],r[2]),t[3]=Math.max(e[3],r[3]),t}function p(t,e){return t[0]=Math.round(e[0]),t[1]=Math.round(e[1]),t[2]=Math.round(e[2]),t[3]=Math.round(e[3]),t}function y(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t}function b(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t[3]=e[3]+r[3]*n,t}function g(t,e){let r=e[0]-t[0],n=e[1]-t[1],i=e[2]-t[2],o=e[3]-t[3];return Math.sqrt(r*r+n*n+i*i+o*o)}function M(t,e){let r=e[0]-t[0],n=e[1]-t[1],i=e[2]-t[2],o=e[3]-t[3];return r*r+n*n+i*i+o*o}function x(t){let e=t[0],r=t[1],n=t[2],i=t[3];return Math.sqrt(e*e+r*r+n*n+i*i)}function T(t){let e=t[0],r=t[1],n=t[2],i=t[3];return e*e+r*r+n*n+i*i}function E(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=-e[3],t}function w(t,e){return t[0]=1/e[0],t[1]=1/e[1],t[2]=1/e[2],t[3]=1/e[3],t}function O(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=r*r+n*n+i*i+o*o;return a>0&&(a=1/Math.sqrt(a),t[0]=r*a,t[1]=n*a,t[2]=i*a,t[3]=o*a),t}function R(t,e){return t[0]*e[0]+t[1]*e[1]+t[2]*e[2]+t[3]*e[3]}function P(t,e,r,n){let i=e[0],o=e[1],a=e[2],u=e[3];return t[0]=i+n*(r[0]-i),t[1]=o+n*(r[1]-o),t[2]=a+n*(r[2]-a),t[3]=u+n*(r[3]-u),t}function S(t,e){var r,i,o,a,u,s;e=e||1;do{u=(r=2*n.RANDOM()-1)*r+(i=2*n.RANDOM()-1)*i}while(u>=1);do{s=(o=2*n.RANDOM()-1)*o+(a=2*n.RANDOM()-1)*a}while(s>=1);var c=Math.sqrt((1-u)/s);return t[0]=e*r,t[1]=e*i,t[2]=e*o*c,t[3]=e*a*c,t}function A(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3];return t[0]=r[0]*n+r[4]*i+r[8]*o+r[12]*a,t[1]=r[1]*n+r[5]*i+r[9]*o+r[13]*a,t[2]=r[2]*n+r[6]*i+r[10]*o+r[14]*a,t[3]=r[3]*n+r[7]*i+r[11]*o+r[15]*a,t}function N(t,e,r){let n=e[0],i=e[1],o=e[2],a=r[0],u=r[1],s=r[2],c=r[3],f=c*n+u*o-s*i,l=c*i+s*n-a*o,h=c*o+a*i-u*n,d=-a*n-u*i-s*o;return t[0]=f*c+d*-a+l*-s-h*-u,t[1]=l*c+d*-u+h*-a-f*-s,t[2]=h*c+d*-s+f*-u-l*-a,t[3]=e[3],t}function C(t){return"vec4("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+")"}function I(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]}function L(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=e[0],s=e[1],c=e[2],f=e[3];return Math.abs(r-u)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(u))&&Math.abs(i-s)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(s))&&Math.abs(o-c)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(c))&&Math.abs(a-f)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(f))}const k=f,F=l,D=h,j=g,B=M,U=x,V=T,Y=function(){let t=i();return function(e,r,n,i,o,a){let u,s;for(r||(r=4),n||(n=0),s=i?Math.min(i*r+n,e.length):e.length,u=n;u<s;u+=r)t[0]=e[u],t[1]=e[u+1],t[2]=e[u+2],t[3]=e[u+3],o(t,t,a),e[u]=t[0],e[u+1]=t[1],e[u+2]=t[2],e[u+3]=t[3];return e}}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Node=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(16),o=r(6);var a=new Float32Array([0,0,0]),u=new Float32Array([0,0,0,1]),s=new Float32Array([1,1,1]),c=o.mat4.create();e.Node=function(){function t(){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.name=null,this.children=[],this.parent=null,this.visible=!0,this.selectable=!1,this._matrix=null,this._dirtyTRS=!1,this._translation=null,this._rotation=null,this._scale=null,this._dirtyWorldMatrix=!1,this._worldMatrix=null,this._activeFrameId=-1,this._hoverFrameId=-1,this._renderPrimitives=null,this._renderer=null,this._selectHandler=null}return n(t,[{key:"_setRenderer",value:function(t){if(this._renderer!=t&&(this._renderer&&this.clearRenderPrimitives(),this._renderer=t,t)){this.onRendererChanged(t);var e=!0,r=!1,n=void 0;try{for(var i,o=this.children[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){i.value._setRenderer(t)}}catch(t){r=!0,n=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw n}}}}},{key:"onRendererChanged",value:function(t){}},{key:"clone",value:function(){var e=this,r=new t;return r.name=this.name,r.visible=this.visible,r._renderer=this._renderer,r._dirtyTRS=this._dirtyTRS,this._translation&&(r._translation=o.vec3.create(),o.vec3.copy(r._translation,this._translation)),this._rotation&&(r._rotation=o.quat.create(),o.quat.copy(r._rotation,this._rotation)),this._scale&&(r._scale=o.vec3.create(),o.vec3.copy(r._scale,this._scale)),!r._dirtyTRS&&this._matrix&&(r._matrix=o.mat4.create(),o.mat4.copy(r._matrix,this._matrix)),r._dirtyWorldMatrix=this._dirtyWorldMatrix,!r._dirtyWorldMatrix&&this._worldMatrix&&(r._worldMatrix=o.mat4.create(),o.mat4.copy(r._worldMatrix,this._worldMatrix)),this.waitForComplete().then(function(){if(e._renderPrimitives){var t=!0,n=!1,i=void 0;try{for(var o,a=e._renderPrimitives[Symbol.iterator]();!(t=(o=a.next()).done);t=!0){var u=o.value;r.addRenderPrimitive(u)}}catch(t){n=!0,i=t}finally{try{!t&&a.return&&a.return()}finally{if(n)throw i}}}var s=!0,c=!1,f=void 0;try{for(var l,h=e.children[Symbol.iterator]();!(s=(l=h.next()).done);s=!0){var d=l.value;r.addNode(d.clone())}}catch(t){c=!0,f=t}finally{try{!s&&h.return&&h.return()}finally{if(c)throw f}}}),r}},{key:"markActive",value:function(t){if(this.visible&&this._renderPrimitives){this._activeFrameId=t;var e=!0,r=!1,n=void 0;try{for(var i,o=this._renderPrimitives[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){i.value.markActive(t)}}catch(t){r=!0,n=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw n}}}var a=!0,u=!1,s=void 0;try{for(var c,f=this.children[Symbol.iterator]();!(a=(c=f.next()).done);a=!0){var l=c.value;l.visible&&l.markActive(t)}}catch(t){u=!0,s=t}finally{try{!a&&f.return&&f.return()}finally{if(u)throw s}}}},{key:"addNode",value:function(t){t&&t.parent!=this&&(t.parent&&t.parent.removeNode(t),t.parent=this,this.children.push(t),this._renderer&&t._setRenderer(this._renderer))}},{key:"removeNode",value:function(t){var e=this.children.indexOf(t);e>-1&&(this.children.splice(e,1),t.parent=null)}},{key:"clearNodes",value:function(){var t=!0,e=!1,r=void 0;try{for(var n,i=this.children[Symbol.iterator]();!(t=(n=i.next()).done);t=!0){n.value.parent=null}}catch(t){e=!0,r=t}finally{try{!t&&i.return&&i.return()}finally{if(e)throw r}}this.children=[]}},{key:"setMatrixDirty",value:function(){if(!this._dirtyWorldMatrix){this._dirtyWorldMatrix=!0;var t=!0,e=!1,r=void 0;try{for(var n,i=this.children[Symbol.iterator]();!(t=(n=i.next()).done);t=!0){n.value.setMatrixDirty()}}catch(t){e=!0,r=t}finally{try{!t&&i.return&&i.return()}finally{if(e)throw r}}}}},{key:"_updateLocalMatrix",value:function(){return this._matrix||(this._matrix=o.mat4.create()),this._dirtyTRS&&(this._dirtyTRS=!1,o.mat4.fromRotationTranslationScale(this._matrix,this._rotation||u,this._translation||a,this._scale||s)),this._matrix}},{key:"waitForComplete",value:function(){var t=this,e=[],r=!0,n=!1,i=void 0;try{for(var o,a=this.children[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var u=o.value;e.push(u.waitForComplete())}}catch(t){n=!0,i=t}finally{try{!r&&a.return&&a.return()}finally{if(n)throw i}}if(this._renderPrimitives){var s=!0,c=!1,f=void 0;try{for(var l,h=this._renderPrimitives[Symbol.iterator]();!(s=(l=h.next()).done);s=!0){var d=l.value;e.push(d.waitForComplete())}}catch(t){c=!0,f=t}finally{try{!s&&h.return&&h.return()}finally{if(c)throw f}}}return Promise.all(e).then(function(){return t})}},{key:"addRenderPrimitive",value:function(t){this._renderPrimitives?this._renderPrimitives.push(t):this._renderPrimitives=[t],t._instances.push(this)}},{key:"removeRenderPrimitive",value:function(t){if(this._renderPrimitives){var e=this._renderPrimitives._instances.indexOf(t);e>-1&&(this._renderPrimitives._instances.splice(e,1),(e=t._instances.indexOf(this))>-1&&t._instances.splice(e,1),this._renderPrimitives.length||(this._renderPrimitives=null))}}},{key:"clearRenderPrimitives",value:function(){if(this._renderPrimitives){var t=!0,e=!1,r=void 0;try{for(var n,i=this._renderPrimitives[Symbol.iterator]();!(t=(n=i.next()).done);t=!0){var o=n.value,a=o._instances.indexOf(this);a>-1&&o._instances.splice(a,1)}}catch(t){e=!0,r=t}finally{try{!t&&i.return&&i.return()}finally{if(e)throw r}}this._renderPrimitives=null}}},{key:"_hitTestSelectableNode",value:function(t){if(this._renderPrimitives){var e=null,r=!0,n=!1,a=void 0;try{for(var u,s=this._renderPrimitives[Symbol.iterator]();!(r=(u=s.next()).done);r=!0){var f=u.value;if(f._min){e||(o.mat4.invert(c,this.worldMatrix),o.mat4.multiply(c,c,t.transformMatrix),e=new i.Ray(c));var l=e.intersectsAABB(f._min,f._max);if(l)return o.vec3.transformMat4(l,l,this.worldMatrix),l}}}catch(t){n=!0,a=t}finally{try{!r&&s.return&&s.return()}finally{if(n)throw a}}}var h=!0,d=!1,v=void 0;try{for(var _,m=this.children[Symbol.iterator]();!(h=(_=m.next()).done);h=!0){var p=_.value._hitTestSelectableNode(t);if(p)return p}}catch(t){d=!0,v=t}finally{try{!h&&m.return&&m.return()}finally{if(d)throw v}}return null}},{key:"hitTest",value:function(t){if(this.selectable&&this.visible){var e=this._hitTestSelectableNode(t);if(e){var r=o.vec3.fromValues(t.origin.x,t.origin.y,t.origin.z);return{node:this,intersection:e,distance:o.vec3.distance(r,e)}}return null}var n=null,i=!0,a=!1,u=void 0;try{for(var s,c=this.children[Symbol.iterator]();!(i=(s=c.next()).done);i=!0){var f=s.value.hitTest(t);f&&(!n||n.distance>f.distance)&&(n=f)}}catch(t){a=!0,u=t}finally{try{!i&&c.return&&c.return()}finally{if(a)throw u}}return n}},{key:"onSelect",value:function(t){this._selectHandler=t}},{key:"handleSelect",value:function(){this._selectHandler&&this._selectHandler()}},{key:"onHoverStart",value:function(){}},{key:"onHoverEnd",value:function(){}},{key:"_update",value:function(t,e){this.onUpdate(t,e);var r=!0,n=!1,i=void 0;try{for(var o,a=this.children[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){o.value._update(t,e)}}catch(t){n=!0,i=t}finally{try{!r&&a.return&&a.return()}finally{if(n)throw i}}}},{key:"onUpdate",value:function(t,e){}},{key:"matrix",set:function(t){t?(this._matrix||(this._matrix=o.mat4.create()),o.mat4.copy(this._matrix,t)):this._matrix=null,this.setMatrixDirty(),this._dirtyTRS=!1,this._translation=null,this._rotation=null,this._scale=null},get:function(){return this.setMatrixDirty(),this._updateLocalMatrix()}},{key:"worldMatrix",get:function(){return this._worldMatrix||(this._dirtyWorldMatrix=!0,this._worldMatrix=o.mat4.create()),(this._dirtyWorldMatrix||this._dirtyTRS)&&(this.parent?o.mat4.mul(this._worldMatrix,this.parent.worldMatrix,this._updateLocalMatrix()):o.mat4.copy(this._worldMatrix,this._updateLocalMatrix()),this._dirtyWorldMatrix=!1),this._worldMatrix}},{key:"translation",set:function(t){null!=t&&(this._dirtyTRS=!0,this.setMatrixDirty()),this._translation=t},get:function(){return this._dirtyTRS=!0,this.setMatrixDirty(),this._translation||(this._translation=o.vec3.clone(a)),this._translation}},{key:"rotation",set:function(t){null!=t&&(this._dirtyTRS=!0,this.setMatrixDirty()),this._rotation=t},get:function(){return this._dirtyTRS=!0,this.setMatrixDirty(),this._rotation||(this._rotation=o.quat.clone(u)),this._rotation}},{key:"scale",set:function(t){null!=t&&(this._dirtyTRS=!0,this.setMatrixDirty()),this._scale=t},get:function(){return this._dirtyTRS=!0,this.setMatrixDirty(),this._scale||(this._scale=o.vec3.clone(s)),this._scale}},{key:"renderPrimitives",get:function(){return this._renderPrimitives}},{key:"selectHandler",get:function(){return this._selectHandler}}]),t}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}();function i(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}e.stateToBlendFunc=c;var o=WebGLRenderingContext,a=e.CAP={CULL_FACE:1,BLEND:2,DEPTH_TEST:4,STENCIL_TEST:8,COLOR_MASK:16,DEPTH_MASK:32,STENCIL_MASK:64},u=e.MAT_STATE={CAPS_RANGE:255,BLEND_SRC_SHIFT:8,BLEND_SRC_RANGE:3840,BLEND_DST_SHIFT:12,BLEND_DST_RANGE:61440,BLEND_FUNC_RANGE:65280,DEPTH_FUNC_SHIFT:16,DEPTH_FUNC_RANGE:983040},s=e.RENDER_ORDER={OPAQUE:0,SKY:1,TRANSPARENT:2,ADDITIVE:3,DEFAULT:4};function c(t,e,r){var n=(t&e)>>r;switch(n){case 0:case 1:return n;default:return n-2+o.SRC_COLOR}}var f=e.MaterialState=function(){function t(){i(this,t),this._state=a.CULL_FACE|a.DEPTH_TEST|a.COLOR_MASK|a.DEPTH_MASK,this.blendFuncSrc=o.SRC_ALPHA,this.blendFuncDst=o.ONE_MINUS_SRC_ALPHA,this.depthFunc=o.LESS}return n(t,[{key:"cullFace",get:function(){return!!(this._state&a.CULL_FACE)},set:function(t){t?this._state|=a.CULL_FACE:this._state&=~a.CULL_FACE}},{key:"blend",get:function(){return!!(this._state&a.BLEND)},set:function(t){t?this._state|=a.BLEND:this._state&=~a.BLEND}},{key:"depthTest",get:function(){return!!(this._state&a.DEPTH_TEST)},set:function(t){t?this._state|=a.DEPTH_TEST:this._state&=~a.DEPTH_TEST}},{key:"stencilTest",get:function(){return!!(this._state&a.STENCIL_TEST)},set:function(t){t?this._state|=a.STENCIL_TEST:this._state&=~a.STENCIL_TEST}},{key:"colorMask",get:function(){return!!(this._state&a.COLOR_MASK)},set:function(t){t?this._state|=a.COLOR_MASK:this._state&=~a.COLOR_MASK}},{key:"depthMask",get:function(){return!!(this._state&a.DEPTH_MASK)},set:function(t){t?this._state|=a.DEPTH_MASK:this._state&=~a.DEPTH_MASK}},{key:"depthFunc",get:function(){return((this._state&u.DEPTH_FUNC_RANGE)>>u.DEPTH_FUNC_SHIFT)+o.NEVER},set:function(t){t-=o.NEVER,this._state&=~u.DEPTH_FUNC_RANGE,this._state|=t<<u.DEPTH_FUNC_SHIFT}},{key:"stencilMask",get:function(){return!!(this._state&a.STENCIL_MASK)},set:function(t){t?this._state|=a.STENCIL_MASK:this._state&=~a.STENCIL_MASK}},{key:"blendFuncSrc",get:function(){return c(this._state,u.BLEND_SRC_RANGE,u.BLEND_SRC_SHIFT)},set:function(t){switch(t){case 0:case 1:break;default:t=t-o.SRC_COLOR+2}this._state&=~u.BLEND_SRC_RANGE,this._state|=t<<u.BLEND_SRC_SHIFT}},{key:"blendFuncDst",get:function(){return c(this._state,u.BLEND_DST_RANGE,u.BLEND_DST_SHIFT)},set:function(t){switch(t){case 0:case 1:break;default:t=t-o.SRC_COLOR+2}this._state&=~u.BLEND_DST_RANGE,this._state|=t<<u.BLEND_DST_SHIFT}}]),t}(),l=function(){function t(e){i(this,t),this._uniformName=e,this._texture=null}return n(t,[{key:"texture",get:function(){return this._texture},set:function(t){this._texture=t}}]),t}(),h=function(){function t(e,r,n){i(this,t),this._uniformName=e,this._value=r,this._length=n,this._length||(r instanceof Array?this._length=r.length:this._length=1)}return n(t,[{key:"value",get:function(){return this._value},set:function(t){this._value=t}}]),t}();e.Material=function(){function t(){i(this,t),this.state=new f,this.renderOrder=s.DEFAULT,this._samplers=[],this._uniforms=[]}return n(t,[{key:"defineSampler",value:function(t){var e=new l(t);return this._samplers.push(e),e}},{key:"defineUniform",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0,n=new h(t,e,r);return this._uniforms.push(n),n}},{key:"getProgramDefines",value:function(t){return{}}},{key:"materialName",get:function(){return null}},{key:"vertexSource",get:function(){return null}},{key:"fragmentSource",get:function(){return null}}]),t}()},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return u}),r.d(e,"identity",function(){return s}),r.d(e,"setAxisAngle",function(){return c}),r.d(e,"getAxisAngle",function(){return f}),r.d(e,"multiply",function(){return l}),r.d(e,"rotateX",function(){return h}),r.d(e,"rotateY",function(){return d}),r.d(e,"rotateZ",function(){return v}),r.d(e,"calculateW",function(){return _}),r.d(e,"slerp",function(){return m}),r.d(e,"random",function(){return p}),r.d(e,"invert",function(){return y}),r.d(e,"conjugate",function(){return b}),r.d(e,"fromMat3",function(){return g}),r.d(e,"fromEuler",function(){return M}),r.d(e,"str",function(){return x}),r.d(e,"clone",function(){return T}),r.d(e,"fromValues",function(){return E}),r.d(e,"copy",function(){return w}),r.d(e,"set",function(){return O}),r.d(e,"add",function(){return R}),r.d(e,"mul",function(){return P}),r.d(e,"scale",function(){return S}),r.d(e,"dot",function(){return A}),r.d(e,"lerp",function(){return N}),r.d(e,"length",function(){return C}),r.d(e,"len",function(){return I}),r.d(e,"squaredLength",function(){return L}),r.d(e,"sqrLen",function(){return k}),r.d(e,"normalize",function(){return F}),r.d(e,"exactEquals",function(){return D}),r.d(e,"equals",function(){return j}),r.d(e,"rotationTo",function(){return B}),r.d(e,"sqlerp",function(){return U}),r.d(e,"setAxes",function(){return V});var n=r(0),i=r(12),o=r(5),a=r(1);function u(){let t=new n.ARRAY_TYPE(4);return n.ARRAY_TYPE!=Float32Array&&(t[0]=0,t[1]=0,t[2]=0),t[3]=1,t}function s(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t}function c(t,e,r){r*=.5;let n=Math.sin(r);return t[0]=n*e[0],t[1]=n*e[1],t[2]=n*e[2],t[3]=Math.cos(r),t}function f(t,e){let r=2*Math.acos(e[3]),i=Math.sin(r/2);return i>n.EPSILON?(t[0]=e[0]/i,t[1]=e[1]/i,t[2]=e[2]/i):(t[0]=1,t[1]=0,t[2]=0),r}function l(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=r[0],s=r[1],c=r[2],f=r[3];return t[0]=n*f+a*u+i*c-o*s,t[1]=i*f+a*s+o*u-n*c,t[2]=o*f+a*c+n*s-i*u,t[3]=a*f-n*u-i*s-o*c,t}function h(t,e,r){r*=.5;let n=e[0],i=e[1],o=e[2],a=e[3],u=Math.sin(r),s=Math.cos(r);return t[0]=n*s+a*u,t[1]=i*s+o*u,t[2]=o*s-i*u,t[3]=a*s-n*u,t}function d(t,e,r){r*=.5;let n=e[0],i=e[1],o=e[2],a=e[3],u=Math.sin(r),s=Math.cos(r);return t[0]=n*s-o*u,t[1]=i*s+a*u,t[2]=o*s+n*u,t[3]=a*s-i*u,t}function v(t,e,r){r*=.5;let n=e[0],i=e[1],o=e[2],a=e[3],u=Math.sin(r),s=Math.cos(r);return t[0]=n*s+i*u,t[1]=i*s-n*u,t[2]=o*s+a*u,t[3]=a*s-o*u,t}function _(t,e){let r=e[0],n=e[1],i=e[2];return t[0]=r,t[1]=n,t[2]=i,t[3]=Math.sqrt(Math.abs(1-r*r-n*n-i*i)),t}function m(t,e,r,i){let o,a,u,s,c,f=e[0],l=e[1],h=e[2],d=e[3],v=r[0],_=r[1],m=r[2],p=r[3];return(a=f*v+l*_+h*m+d*p)<0&&(a=-a,v=-v,_=-_,m=-m,p=-p),1-a>n.EPSILON?(o=Math.acos(a),u=Math.sin(o),s=Math.sin((1-i)*o)/u,c=Math.sin(i*o)/u):(s=1-i,c=i),t[0]=s*f+c*v,t[1]=s*l+c*_,t[2]=s*h+c*m,t[3]=s*d+c*p,t}function p(t){let e=n.RANDOM(),r=n.RANDOM(),i=n.RANDOM(),o=Math.sqrt(1-e),a=Math.sqrt(e);return t[0]=o*Math.sin(2*Math.PI*r),t[1]=o*Math.cos(2*Math.PI*r),t[2]=a*Math.sin(2*Math.PI*i),t[3]=a*Math.cos(2*Math.PI*i),t}function y(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=r*r+n*n+i*i+o*o,u=a?1/a:0;return t[0]=-r*u,t[1]=-n*u,t[2]=-i*u,t[3]=o*u,t}function b(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=e[3],t}function g(t,e){let r,n=e[0]+e[4]+e[8];if(n>0)r=Math.sqrt(n+1),t[3]=.5*r,r=.5/r,t[0]=(e[5]-e[7])*r,t[1]=(e[6]-e[2])*r,t[2]=(e[1]-e[3])*r;else{let n=0;e[4]>e[0]&&(n=1),e[8]>e[3*n+n]&&(n=2);let i=(n+1)%3,o=(n+2)%3;r=Math.sqrt(e[3*n+n]-e[3*i+i]-e[3*o+o]+1),t[n]=.5*r,r=.5/r,t[3]=(e[3*i+o]-e[3*o+i])*r,t[i]=(e[3*i+n]+e[3*n+i])*r,t[o]=(e[3*o+n]+e[3*n+o])*r}return t}function M(t,e,r,n){let i=.5*Math.PI/180;e*=i,r*=i,n*=i;let o=Math.sin(e),a=Math.cos(e),u=Math.sin(r),s=Math.cos(r),c=Math.sin(n),f=Math.cos(n);return t[0]=o*s*f-a*u*c,t[1]=a*u*f+o*s*c,t[2]=a*s*c-o*u*f,t[3]=a*s*f+o*u*c,t}function x(t){return"quat("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+")"}const T=a.clone,E=a.fromValues,w=a.copy,O=a.set,R=a.add,P=l,S=a.scale,A=a.dot,N=a.lerp,C=a.length,I=C,L=a.squaredLength,k=L,F=a.normalize,D=a.exactEquals,j=a.equals,B=function(){let t=o.create(),e=o.fromValues(1,0,0),r=o.fromValues(0,1,0);return function(n,i,a){let u=o.dot(i,a);return u<-.999999?(o.cross(t,e,i),o.len(t)<1e-6&&o.cross(t,r,i),o.normalize(t,t),c(n,t,Math.PI),n):u>.999999?(n[0]=0,n[1]=0,n[2]=0,n[3]=1,n):(o.cross(t,i,a),n[0]=t[0],n[1]=t[1],n[2]=t[2],n[3]=1+u,F(n,n))}}(),U=function(){let t=u(),e=u();return function(r,n,i,o,a,u){return m(t,n,a,u),m(e,i,o,u),m(r,t,e,2*u*(1-u)),r}}(),V=function(){let t=i.create();return function(e,r,n,i){return t[0]=n[0],t[3]=n[1],t[6]=n[2],t[1]=i[0],t[4]=i[1],t[7]=i[2],t[2]=-r[0],t[5]=-r[1],t[8]=-r[2],F(e,g(e,t))}}()},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"length",function(){return a}),r.d(e,"fromValues",function(){return u}),r.d(e,"copy",function(){return s}),r.d(e,"set",function(){return c}),r.d(e,"add",function(){return f}),r.d(e,"subtract",function(){return l}),r.d(e,"multiply",function(){return h}),r.d(e,"divide",function(){return d}),r.d(e,"ceil",function(){return v}),r.d(e,"floor",function(){return _}),r.d(e,"min",function(){return m}),r.d(e,"max",function(){return p}),r.d(e,"round",function(){return y}),r.d(e,"scale",function(){return b}),r.d(e,"scaleAndAdd",function(){return g}),r.d(e,"distance",function(){return M}),r.d(e,"squaredDistance",function(){return x}),r.d(e,"squaredLength",function(){return T}),r.d(e,"negate",function(){return E}),r.d(e,"inverse",function(){return w}),r.d(e,"normalize",function(){return O}),r.d(e,"dot",function(){return R}),r.d(e,"cross",function(){return P}),r.d(e,"lerp",function(){return S}),r.d(e,"hermite",function(){return A}),r.d(e,"bezier",function(){return N}),r.d(e,"random",function(){return C}),r.d(e,"transformMat4",function(){return I}),r.d(e,"transformMat3",function(){return L}),r.d(e,"transformQuat",function(){return k}),r.d(e,"rotateX",function(){return F}),r.d(e,"rotateY",function(){return D}),r.d(e,"rotateZ",function(){return j}),r.d(e,"angle",function(){return B}),r.d(e,"str",function(){return U}),r.d(e,"exactEquals",function(){return V}),r.d(e,"equals",function(){return Y}),r.d(e,"sub",function(){return G}),r.d(e,"mul",function(){return q}),r.d(e,"div",function(){return H}),r.d(e,"dist",function(){return X}),r.d(e,"sqrDist",function(){return W}),r.d(e,"len",function(){return K}),r.d(e,"sqrLen",function(){return z}),r.d(e,"forEach",function(){return Q});var n=r(0);function i(){let t=new n.ARRAY_TYPE(3);return n.ARRAY_TYPE!=Float32Array&&(t[0]=0,t[1]=0,t[2]=0),t}function o(t){var e=new n.ARRAY_TYPE(3);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e}function a(t){let e=t[0],r=t[1],n=t[2];return Math.sqrt(e*e+r*r+n*n)}function u(t,e,r){let i=new n.ARRAY_TYPE(3);return i[0]=t,i[1]=e,i[2]=r,i}function s(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t}function c(t,e,r,n){return t[0]=e,t[1]=r,t[2]=n,t}function f(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t}function l(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t}function h(t,e,r){return t[0]=e[0]*r[0],t[1]=e[1]*r[1],t[2]=e[2]*r[2],t}function d(t,e,r){return t[0]=e[0]/r[0],t[1]=e[1]/r[1],t[2]=e[2]/r[2],t}function v(t,e){return t[0]=Math.ceil(e[0]),t[1]=Math.ceil(e[1]),t[2]=Math.ceil(e[2]),t}function _(t,e){return t[0]=Math.floor(e[0]),t[1]=Math.floor(e[1]),t[2]=Math.floor(e[2]),t}function m(t,e,r){return t[0]=Math.min(e[0],r[0]),t[1]=Math.min(e[1],r[1]),t[2]=Math.min(e[2],r[2]),t}function p(t,e,r){return t[0]=Math.max(e[0],r[0]),t[1]=Math.max(e[1],r[1]),t[2]=Math.max(e[2],r[2]),t}function y(t,e){return t[0]=Math.round(e[0]),t[1]=Math.round(e[1]),t[2]=Math.round(e[2]),t}function b(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t}function g(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t}function M(t,e){let r=e[0]-t[0],n=e[1]-t[1],i=e[2]-t[2];return Math.sqrt(r*r+n*n+i*i)}function x(t,e){let r=e[0]-t[0],n=e[1]-t[1],i=e[2]-t[2];return r*r+n*n+i*i}function T(t){let e=t[0],r=t[1],n=t[2];return e*e+r*r+n*n}function E(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t}function w(t,e){return t[0]=1/e[0],t[1]=1/e[1],t[2]=1/e[2],t}function O(t,e){let r=e[0],n=e[1],i=e[2],o=r*r+n*n+i*i;return o>0&&(o=1/Math.sqrt(o),t[0]=e[0]*o,t[1]=e[1]*o,t[2]=e[2]*o),t}function R(t,e){return t[0]*e[0]+t[1]*e[1]+t[2]*e[2]}function P(t,e,r){let n=e[0],i=e[1],o=e[2],a=r[0],u=r[1],s=r[2];return t[0]=i*s-o*u,t[1]=o*a-n*s,t[2]=n*u-i*a,t}function S(t,e,r,n){let i=e[0],o=e[1],a=e[2];return t[0]=i+n*(r[0]-i),t[1]=o+n*(r[1]-o),t[2]=a+n*(r[2]-a),t}function A(t,e,r,n,i,o){let a=o*o,u=a*(2*o-3)+1,s=a*(o-2)+o,c=a*(o-1),f=a*(3-2*o);return t[0]=e[0]*u+r[0]*s+n[0]*c+i[0]*f,t[1]=e[1]*u+r[1]*s+n[1]*c+i[1]*f,t[2]=e[2]*u+r[2]*s+n[2]*c+i[2]*f,t}function N(t,e,r,n,i,o){let a=1-o,u=a*a,s=o*o,c=u*a,f=3*o*u,l=3*s*a,h=s*o;return t[0]=e[0]*c+r[0]*f+n[0]*l+i[0]*h,t[1]=e[1]*c+r[1]*f+n[1]*l+i[1]*h,t[2]=e[2]*c+r[2]*f+n[2]*l+i[2]*h,t}function C(t,e){e=e||1;let r=2*n.RANDOM()*Math.PI,i=2*n.RANDOM()-1,o=Math.sqrt(1-i*i)*e;return t[0]=Math.cos(r)*o,t[1]=Math.sin(r)*o,t[2]=i*e,t}function I(t,e,r){let n=e[0],i=e[1],o=e[2],a=r[3]*n+r[7]*i+r[11]*o+r[15];return a=a||1,t[0]=(r[0]*n+r[4]*i+r[8]*o+r[12])/a,t[1]=(r[1]*n+r[5]*i+r[9]*o+r[13])/a,t[2]=(r[2]*n+r[6]*i+r[10]*o+r[14])/a,t}function L(t,e,r){let n=e[0],i=e[1],o=e[2];return t[0]=n*r[0]+i*r[3]+o*r[6],t[1]=n*r[1]+i*r[4]+o*r[7],t[2]=n*r[2]+i*r[5]+o*r[8],t}function k(t,e,r){let n=r[0],i=r[1],o=r[2],a=r[3],u=e[0],s=e[1],c=e[2],f=i*c-o*s,l=o*u-n*c,h=n*s-i*u,d=i*h-o*l,v=o*f-n*h,_=n*l-i*f,m=2*a;return f*=m,l*=m,h*=m,d*=2,v*=2,_*=2,t[0]=u+f+d,t[1]=s+l+v,t[2]=c+h+_,t}function F(t,e,r,n){let i=[],o=[];return i[0]=e[0]-r[0],i[1]=e[1]-r[1],i[2]=e[2]-r[2],o[0]=i[0],o[1]=i[1]*Math.cos(n)-i[2]*Math.sin(n),o[2]=i[1]*Math.sin(n)+i[2]*Math.cos(n),t[0]=o[0]+r[0],t[1]=o[1]+r[1],t[2]=o[2]+r[2],t}function D(t,e,r,n){let i=[],o=[];return i[0]=e[0]-r[0],i[1]=e[1]-r[1],i[2]=e[2]-r[2],o[0]=i[2]*Math.sin(n)+i[0]*Math.cos(n),o[1]=i[1],o[2]=i[2]*Math.cos(n)-i[0]*Math.sin(n),t[0]=o[0]+r[0],t[1]=o[1]+r[1],t[2]=o[2]+r[2],t}function j(t,e,r,n){let i=[],o=[];return i[0]=e[0]-r[0],i[1]=e[1]-r[1],i[2]=e[2]-r[2],o[0]=i[0]*Math.cos(n)-i[1]*Math.sin(n),o[1]=i[0]*Math.sin(n)+i[1]*Math.cos(n),o[2]=i[2],t[0]=o[0]+r[0],t[1]=o[1]+r[1],t[2]=o[2]+r[2],t}function B(t,e){let r=u(t[0],t[1],t[2]),n=u(e[0],e[1],e[2]);O(r,r),O(n,n);let i=R(r,n);return i>1?0:i<-1?Math.PI:Math.acos(i)}function U(t){return"vec3("+t[0]+", "+t[1]+", "+t[2]+")"}function V(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]}function Y(t,e){let r=t[0],i=t[1],o=t[2],a=e[0],u=e[1],s=e[2];return Math.abs(r-a)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(a))&&Math.abs(i-u)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(u))&&Math.abs(o-s)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(s))}const G=l,q=h,H=d,X=M,W=x,K=a,z=T,Q=function(){let t=i();return function(e,r,n,i,o,a){let u,s;for(r||(r=3),n||(n=0),s=i?Math.min(i*r+n,e.length):e.length,u=n;u<s;u+=r)t[0]=e[u],t[1]=e[u+1],t[2]=e[u+2],o(t,t,a),e[u]=t[0],e[u+1]=t[1],e[u+2]=t[2];return e}}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.vec4=e.vec3=e.vec2=e.quat2=e.quat=e.mat4=e.mat3=e.mat2d=e.mat2=e.glMatrix=void 0;var n=d(r(0)),i=d(r(17)),o=d(r(18)),a=d(r(12)),u=d(r(10)),s=d(r(4)),c=d(r(19)),f=d(r(20)),l=d(r(5)),h=d(r(1));function d(t){if(t&&t.__esModule)return t;var e={};if(null!=t)for(var r in t)Object.prototype.hasOwnProperty.call(t,r)&&(e[r]=t[r]);return e.default=t,e}e.glMatrix=n,e.mat2=i,e.mat2d=o,e.mat3=a,e.mat4=u,e.quat=s,e.quat2=c,e.vec2=f,e.vec3=l,e.vec4=h},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Primitive=e.PrimitiveAttribute=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(6);function o(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}e.PrimitiveAttribute=function t(e,r,n,i,a,u){o(this,t),this.name=e,this.buffer=r,this.componentCount=n||3,this.componentType=i||5126,this.stride=a||0,this.byteOffset=u||0,this.normalized=!1},e.Primitive=function(){function t(e,r,n){o(this,t),this.attributes=e||[],this.elementCount=r||0,this.mode=n||4,this.indexBuffer=null,this.indexByteOffset=0,this.indexType=0,this._min=null,this._max=null}return n(t,[{key:"setIndexBuffer",value:function(t,e,r){this.indexBuffer=t,this.indexByteOffset=e||0,this.indexType=r||5123}},{key:"setBounds",value:function(t,e){this._min=i.vec3.clone(t),this._max=i.vec3.clone(e)}}]),t}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}();function i(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function o(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}function a(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var u=WebGLRenderingContext,s=e.TextureSampler=function t(){a(this,t),this.minFilter=null,this.magFilter=null,this.wrapS=null,this.wrapT=null},c=e.Texture=function(){function t(){a(this,t),this.sampler=new s,this.mipmap=!0}return n(t,[{key:"format",get:function(){return u.RGBA}},{key:"width",get:function(){return 0}},{key:"height",get:function(){return 0}},{key:"textureKey",get:function(){return null}}]),t}(),f=e.ImageTexture=function(t){function e(t){a(this,e);var r=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r._img=t,r._imgBitmap=null,t.src&&t.complete?t.naturalWidth?r._promise=r._finishImage():r._promise=Promise.reject("Image provided had failed to load."):r._promise=new Promise(function(e,n){t.addEventListener("load",function(){return e(r._finishImage())}),t.addEventListener("error",n)}),r}return o(e,c),n(e,[{key:"_finishImage",value:function(){var t=this;return window.createImageBitmap?window.createImageBitmap(this._img).then(function(e){return t._imgBitmap=e,Promise.resolve(t)}):Promise.resolve(this)}},{key:"waitForComplete",value:function(){return this._promise}},{key:"format",get:function(){return u.RGBA}},{key:"width",get:function(){return this._img.width}},{key:"height",get:function(){return this._img.height}},{key:"textureKey",get:function(){return this._img.src}},{key:"source",get:function(){return this._imgBitmap||this._img}}]),e}(),l=(e.UrlTexture=function(t){function e(t){a(this,e);var r=new Image,n=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,r));return r.src=t,n}return o(e,f),e}(),e.BlobTexture=function(t){function e(t){a(this,e);var r=new Image,n=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,r));return r.src=window.URL.createObjectURL(t),n}return o(e,f),e}(),e.VideoTexture=function(t){function e(t){a(this,e);var r=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r._video=t,t.readyState>=2?r._promise=Promise.resolve(r):t.error?r._promise=Promise.reject(t.error):r._promise=new Promise(function(e,n){t.addEventListener("loadeddata",function(){return e(r)}),t.addEventListener("error",n)}),r}return o(e,c),n(e,[{key:"waitForComplete",value:function(){return this._promise}},{key:"format",get:function(){return u.RGBA}},{key:"width",get:function(){return this._video.videoWidth}},{key:"height",get:function(){return this._video.videoHeight}},{key:"textureKey",get:function(){return this._video.src}},{key:"source",get:function(){return this._video}}]),e}(),0),h=e.DataTexture=function(t){function e(t,r,n){var o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:u.RGBA,s=arguments.length>4&&void 0!==arguments[4]?arguments[4]:u.UNSIGNED_BYTE;a(this,e);var c=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return c._data=t,c._width=r,c._height=n,c._format=o,c._type=s,c._key="DATA_"+l,l++,c}return o(e,c),n(e,[{key:"format",get:function(){return this._format}},{key:"width",get:function(){return this._width}},{key:"height",get:function(){return this._height}},{key:"textureKey",get:function(){return this._key}}]),e}();e.ColorTexture=function(t){function e(t,r,n,o){a(this,e);var u=new Uint8Array([255*t,255*r,255*n,255*o]),s=i(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,u,1,1));return s.mipmap=!1,s._key="COLOR_"+u[0]+"_"+u[1]+"_"+u[2]+"_"+u[3],s}return o(e,h),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.GeometryBuilderBase=e.PrimitiveStream=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(7),o=r(6);function a(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var u=WebGLRenderingContext,s=o.vec3.create(),c=e.PrimitiveStream=function(){function t(e){a(this,t),this._vertices=[],this._indices=[],this._geometryStarted=!1,this._vertexOffset=0,this._vertexIndex=0,this._highIndex=0,this._flipWinding=!1,this._invertNormals=!1,this._transform=null,this._normalTransform=null,this._min=null,this._max=null}return n(t,[{key:"startGeometry",value:function(){if(this._geometryStarted)throw new Error("Attempted to start a new geometry before the previous one was ended.");this._geometryStarted=!0,this._vertexIndex=0,this._highIndex=0}},{key:"endGeometry",value:function(){if(!this._geometryStarted)throw new Error("Attempted to end a geometry before one was started.");if(this._highIndex>=this._vertexIndex)throw new Error("Geometry contains indices that are out of bounds.\n                       (Contains an index of "+this._highIndex+" when the vertex count is "+this._vertexIndex+")");this._geometryStarted=!1,this._vertexOffset+=this._vertexIndex}},{key:"pushVertex",value:function(t,e,r){var n=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0,i=arguments.length>4&&void 0!==arguments[4]?arguments[4]:0,a=arguments.length>5&&void 0!==arguments[5]?arguments[5]:0,u=arguments.length>6&&void 0!==arguments[6]?arguments[6]:0,c=arguments.length>7&&void 0!==arguments[7]?arguments[7]:1;if(!this._geometryStarted)throw new Error("Cannot push vertices before calling startGeometry().");return this._transform&&(s[0]=t,s[1]=e,s[2]=r,o.vec3.transformMat4(s,s,this._transform),t=s[0],e=s[1],r=s[2],s[0]=a,s[1]=u,s[2]=c,o.vec3.transformMat3(s,s,this._normalTransform),a=s[0],u=s[1],c=s[2]),this._invertNormals&&(a*=-1,u*=-1,c*=-1),this._vertices.push(t,e,r,n,i,a,u,c),this._min?(this._min[0]=Math.min(this._min[0],t),this._min[1]=Math.min(this._min[1],e),this._min[2]=Math.min(this._min[2],r),this._max[0]=Math.max(this._max[0],t),this._max[1]=Math.max(this._max[1],e),this._max[2]=Math.max(this._max[2],r)):(this._min=o.vec3.fromValues(t,e,r),this._max=o.vec3.fromValues(t,e,r)),this._vertexIndex++}},{key:"pushTriangle",value:function(t,e,r){if(!this._geometryStarted)throw new Error("Cannot push triangles before calling startGeometry().");this._highIndex=Math.max(this._highIndex,t,e,r),t+=this._vertexOffset,e+=this._vertexOffset,r+=this._vertexOffset,this._flipWinding?this._indices.push(r,e,t):this._indices.push(t,e,r)}},{key:"clear",value:function(){if(this._geometryStarted)throw new Error("Cannot clear before ending the current geometry.");this._vertices=[],this._indices=[],this._vertexOffset=0,this._min=null,this._max=null}},{key:"finishPrimitive",value:function(t){if(!this._vertexOffset)throw new Error("Attempted to call finishPrimitive() before creating any geometry.");var e=t.createRenderBuffer(u.ARRAY_BUFFER,new Float32Array(this._vertices)),r=t.createRenderBuffer(u.ELEMENT_ARRAY_BUFFER,new Uint16Array(this._indices)),n=[new i.PrimitiveAttribute("POSITION",e,3,u.FLOAT,32,0),new i.PrimitiveAttribute("TEXCOORD_0",e,2,u.FLOAT,32,12),new i.PrimitiveAttribute("NORMAL",e,3,u.FLOAT,32,20)],o=new i.Primitive(n,this._indices.length);return o.setIndexBuffer(r),o.setBounds(this._min,this._max),o}},{key:"flipWinding",set:function(t){if(this._geometryStarted)throw new Error("Cannot change flipWinding before ending the current geometry.");this._flipWinding=t},get:function(){this._flipWinding}},{key:"invertNormals",set:function(t){if(this._geometryStarted)throw new Error("Cannot change invertNormals before ending the current geometry.");this._invertNormals=t},get:function(){this._invertNormals}},{key:"transform",set:function(t){if(this._geometryStarted)throw new Error("Cannot change transform before ending the current geometry.");this._transform=t,this._transform&&(this._normalTransform||(this._normalTransform=o.mat3.create()),o.mat3.fromMat4(this._normalTransform,this._transform))},get:function(){this._transform}},{key:"nextVertexIndex",get:function(){return this._vertexIndex}}]),t}();e.GeometryBuilderBase=function(){function t(e){a(this,t),this._stream=e||new c}return n(t,[{key:"finishPrimitive",value:function(t){return this._stream.finishPrimitive(t)}},{key:"clear",value:function(){this._stream.clear()}},{key:"primitiveStream",set:function(t){this._stream=t},get:function(){return this._stream}}]),t}()},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"copy",function(){return a}),r.d(e,"fromValues",function(){return u}),r.d(e,"set",function(){return s}),r.d(e,"identity",function(){return c}),r.d(e,"transpose",function(){return f}),r.d(e,"invert",function(){return l}),r.d(e,"adjoint",function(){return h}),r.d(e,"determinant",function(){return d}),r.d(e,"multiply",function(){return v}),r.d(e,"translate",function(){return _}),r.d(e,"scale",function(){return m}),r.d(e,"rotate",function(){return p}),r.d(e,"rotateX",function(){return y}),r.d(e,"rotateY",function(){return b}),r.d(e,"rotateZ",function(){return g}),r.d(e,"fromTranslation",function(){return M}),r.d(e,"fromScaling",function(){return x}),r.d(e,"fromRotation",function(){return T}),r.d(e,"fromXRotation",function(){return E}),r.d(e,"fromYRotation",function(){return w}),r.d(e,"fromZRotation",function(){return O}),r.d(e,"fromRotationTranslation",function(){return R}),r.d(e,"fromQuat2",function(){return P}),r.d(e,"getTranslation",function(){return S}),r.d(e,"getScaling",function(){return A}),r.d(e,"getRotation",function(){return N}),r.d(e,"fromRotationTranslationScale",function(){return C}),r.d(e,"fromRotationTranslationScaleOrigin",function(){return I}),r.d(e,"fromQuat",function(){return L}),r.d(e,"frustum",function(){return k}),r.d(e,"perspective",function(){return F}),r.d(e,"perspectiveFromFieldOfView",function(){return D}),r.d(e,"ortho",function(){return j}),r.d(e,"lookAt",function(){return B}),r.d(e,"targetTo",function(){return U}),r.d(e,"str",function(){return V}),r.d(e,"frob",function(){return Y}),r.d(e,"add",function(){return G}),r.d(e,"subtract",function(){return q}),r.d(e,"multiplyScalar",function(){return H}),r.d(e,"multiplyScalarAndAdd",function(){return X}),r.d(e,"exactEquals",function(){return W}),r.d(e,"equals",function(){return K}),r.d(e,"mul",function(){return z}),r.d(e,"sub",function(){return Q});var n=r(0);function i(){let t=new n.ARRAY_TYPE(16);return n.ARRAY_TYPE!=Float32Array&&(t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[11]=0,t[12]=0,t[13]=0,t[14]=0),t[0]=1,t[5]=1,t[10]=1,t[15]=1,t}function o(t){let e=new n.ARRAY_TYPE(16);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e[9]=t[9],e[10]=t[10],e[11]=t[11],e[12]=t[12],e[13]=t[13],e[14]=t[14],e[15]=t[15],e}function a(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t}function u(t,e,r,i,o,a,u,s,c,f,l,h,d,v,_,m){let p=new n.ARRAY_TYPE(16);return p[0]=t,p[1]=e,p[2]=r,p[3]=i,p[4]=o,p[5]=a,p[6]=u,p[7]=s,p[8]=c,p[9]=f,p[10]=l,p[11]=h,p[12]=d,p[13]=v,p[14]=_,p[15]=m,p}function s(t,e,r,n,i,o,a,u,s,c,f,l,h,d,v,_,m){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t[4]=o,t[5]=a,t[6]=u,t[7]=s,t[8]=c,t[9]=f,t[10]=l,t[11]=h,t[12]=d,t[13]=v,t[14]=_,t[15]=m,t}function c(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function f(t,e){if(t===e){let r=e[1],n=e[2],i=e[3],o=e[6],a=e[7],u=e[11];t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=r,t[6]=e[9],t[7]=e[13],t[8]=n,t[9]=o,t[11]=e[14],t[12]=i,t[13]=a,t[14]=u}else t[0]=e[0],t[1]=e[4],t[2]=e[8],t[3]=e[12],t[4]=e[1],t[5]=e[5],t[6]=e[9],t[7]=e[13],t[8]=e[2],t[9]=e[6],t[10]=e[10],t[11]=e[14],t[12]=e[3],t[13]=e[7],t[14]=e[11],t[15]=e[15];return t}function l(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=e[6],c=e[7],f=e[8],l=e[9],h=e[10],d=e[11],v=e[12],_=e[13],m=e[14],p=e[15],y=r*u-n*a,b=r*s-i*a,g=r*c-o*a,M=n*s-i*u,x=n*c-o*u,T=i*c-o*s,E=f*_-l*v,w=f*m-h*v,O=f*p-d*v,R=l*m-h*_,P=l*p-d*_,S=h*p-d*m,A=y*S-b*P+g*R+M*O-x*w+T*E;return A?(A=1/A,t[0]=(u*S-s*P+c*R)*A,t[1]=(i*P-n*S-o*R)*A,t[2]=(_*T-m*x+p*M)*A,t[3]=(h*x-l*T-d*M)*A,t[4]=(s*O-a*S-c*w)*A,t[5]=(r*S-i*O+o*w)*A,t[6]=(m*g-v*T-p*b)*A,t[7]=(f*T-h*g+d*b)*A,t[8]=(a*P-u*O+c*E)*A,t[9]=(n*O-r*P-o*E)*A,t[10]=(v*x-_*g+p*y)*A,t[11]=(l*g-f*x-d*y)*A,t[12]=(u*w-a*R-s*E)*A,t[13]=(r*R-n*w+i*E)*A,t[14]=(_*b-v*M-m*y)*A,t[15]=(f*M-l*b+h*y)*A,t):null}function h(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=e[6],c=e[7],f=e[8],l=e[9],h=e[10],d=e[11],v=e[12],_=e[13],m=e[14],p=e[15];return t[0]=u*(h*p-d*m)-l*(s*p-c*m)+_*(s*d-c*h),t[1]=-(n*(h*p-d*m)-l*(i*p-o*m)+_*(i*d-o*h)),t[2]=n*(s*p-c*m)-u*(i*p-o*m)+_*(i*c-o*s),t[3]=-(n*(s*d-c*h)-u*(i*d-o*h)+l*(i*c-o*s)),t[4]=-(a*(h*p-d*m)-f*(s*p-c*m)+v*(s*d-c*h)),t[5]=r*(h*p-d*m)-f*(i*p-o*m)+v*(i*d-o*h),t[6]=-(r*(s*p-c*m)-a*(i*p-o*m)+v*(i*c-o*s)),t[7]=r*(s*d-c*h)-a*(i*d-o*h)+f*(i*c-o*s),t[8]=a*(l*p-d*_)-f*(u*p-c*_)+v*(u*d-c*l),t[9]=-(r*(l*p-d*_)-f*(n*p-o*_)+v*(n*d-o*l)),t[10]=r*(u*p-c*_)-a*(n*p-o*_)+v*(n*c-o*u),t[11]=-(r*(u*d-c*l)-a*(n*d-o*l)+f*(n*c-o*u)),t[12]=-(a*(l*m-h*_)-f*(u*m-s*_)+v*(u*h-s*l)),t[13]=r*(l*m-h*_)-f*(n*m-i*_)+v*(n*h-i*l),t[14]=-(r*(u*m-s*_)-a*(n*m-i*_)+v*(n*s-i*u)),t[15]=r*(u*h-s*l)-a*(n*h-i*l)+f*(n*s-i*u),t}function d(t){let e=t[0],r=t[1],n=t[2],i=t[3],o=t[4],a=t[5],u=t[6],s=t[7],c=t[8],f=t[9],l=t[10],h=t[11],d=t[12],v=t[13],_=t[14],m=t[15];return(e*a-r*o)*(l*m-h*_)-(e*u-n*o)*(f*m-h*v)+(e*s-i*o)*(f*_-l*v)+(r*u-n*a)*(c*m-h*d)-(r*s-i*a)*(c*_-l*d)+(n*s-i*u)*(c*v-f*d)}function v(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=e[6],f=e[7],l=e[8],h=e[9],d=e[10],v=e[11],_=e[12],m=e[13],p=e[14],y=e[15],b=r[0],g=r[1],M=r[2],x=r[3];return t[0]=b*n+g*u+M*l+x*_,t[1]=b*i+g*s+M*h+x*m,t[2]=b*o+g*c+M*d+x*p,t[3]=b*a+g*f+M*v+x*y,b=r[4],g=r[5],M=r[6],x=r[7],t[4]=b*n+g*u+M*l+x*_,t[5]=b*i+g*s+M*h+x*m,t[6]=b*o+g*c+M*d+x*p,t[7]=b*a+g*f+M*v+x*y,b=r[8],g=r[9],M=r[10],x=r[11],t[8]=b*n+g*u+M*l+x*_,t[9]=b*i+g*s+M*h+x*m,t[10]=b*o+g*c+M*d+x*p,t[11]=b*a+g*f+M*v+x*y,b=r[12],g=r[13],M=r[14],x=r[15],t[12]=b*n+g*u+M*l+x*_,t[13]=b*i+g*s+M*h+x*m,t[14]=b*o+g*c+M*d+x*p,t[15]=b*a+g*f+M*v+x*y,t}function _(t,e,r){let n,i,o,a,u,s,c,f,l,h,d,v,_=r[0],m=r[1],p=r[2];return e===t?(t[12]=e[0]*_+e[4]*m+e[8]*p+e[12],t[13]=e[1]*_+e[5]*m+e[9]*p+e[13],t[14]=e[2]*_+e[6]*m+e[10]*p+e[14],t[15]=e[3]*_+e[7]*m+e[11]*p+e[15]):(n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=e[6],f=e[7],l=e[8],h=e[9],d=e[10],v=e[11],t[0]=n,t[1]=i,t[2]=o,t[3]=a,t[4]=u,t[5]=s,t[6]=c,t[7]=f,t[8]=l,t[9]=h,t[10]=d,t[11]=v,t[12]=n*_+u*m+l*p+e[12],t[13]=i*_+s*m+h*p+e[13],t[14]=o*_+c*m+d*p+e[14],t[15]=a*_+f*m+v*p+e[15]),t}function m(t,e,r){let n=r[0],i=r[1],o=r[2];return t[0]=e[0]*n,t[1]=e[1]*n,t[2]=e[2]*n,t[3]=e[3]*n,t[4]=e[4]*i,t[5]=e[5]*i,t[6]=e[6]*i,t[7]=e[7]*i,t[8]=e[8]*o,t[9]=e[9]*o,t[10]=e[10]*o,t[11]=e[11]*o,t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15],t}function p(t,e,r,i){let o,a,u,s,c,f,l,h,d,v,_,m,p,y,b,g,M,x,T,E,w,O,R,P,S=i[0],A=i[1],N=i[2],C=Math.sqrt(S*S+A*A+N*N);return C<n.EPSILON?null:(S*=C=1/C,A*=C,N*=C,o=Math.sin(r),u=1-(a=Math.cos(r)),s=e[0],c=e[1],f=e[2],l=e[3],h=e[4],d=e[5],v=e[6],_=e[7],m=e[8],p=e[9],y=e[10],b=e[11],g=S*S*u+a,M=A*S*u+N*o,x=N*S*u-A*o,T=S*A*u-N*o,E=A*A*u+a,w=N*A*u+S*o,O=S*N*u+A*o,R=A*N*u-S*o,P=N*N*u+a,t[0]=s*g+h*M+m*x,t[1]=c*g+d*M+p*x,t[2]=f*g+v*M+y*x,t[3]=l*g+_*M+b*x,t[4]=s*T+h*E+m*w,t[5]=c*T+d*E+p*w,t[6]=f*T+v*E+y*w,t[7]=l*T+_*E+b*w,t[8]=s*O+h*R+m*P,t[9]=c*O+d*R+p*P,t[10]=f*O+v*R+y*P,t[11]=l*O+_*R+b*P,e!==t&&(t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]),t)}function y(t,e,r){let n=Math.sin(r),i=Math.cos(r),o=e[4],a=e[5],u=e[6],s=e[7],c=e[8],f=e[9],l=e[10],h=e[11];return e!==t&&(t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]),t[4]=o*i+c*n,t[5]=a*i+f*n,t[6]=u*i+l*n,t[7]=s*i+h*n,t[8]=c*i-o*n,t[9]=f*i-a*n,t[10]=l*i-u*n,t[11]=h*i-s*n,t}function b(t,e,r){let n=Math.sin(r),i=Math.cos(r),o=e[0],a=e[1],u=e[2],s=e[3],c=e[8],f=e[9],l=e[10],h=e[11];return e!==t&&(t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]),t[0]=o*i-c*n,t[1]=a*i-f*n,t[2]=u*i-l*n,t[3]=s*i-h*n,t[8]=o*n+c*i,t[9]=a*n+f*i,t[10]=u*n+l*i,t[11]=s*n+h*i,t}function g(t,e,r){let n=Math.sin(r),i=Math.cos(r),o=e[0],a=e[1],u=e[2],s=e[3],c=e[4],f=e[5],l=e[6],h=e[7];return e!==t&&(t[8]=e[8],t[9]=e[9],t[10]=e[10],t[11]=e[11],t[12]=e[12],t[13]=e[13],t[14]=e[14],t[15]=e[15]),t[0]=o*i+c*n,t[1]=a*i+f*n,t[2]=u*i+l*n,t[3]=s*i+h*n,t[4]=c*i-o*n,t[5]=f*i-a*n,t[6]=l*i-u*n,t[7]=h*i-s*n,t}function M(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=e[0],t[13]=e[1],t[14]=e[2],t[15]=1,t}function x(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=e[1],t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=e[2],t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function T(t,e,r){let i,o,a,u=r[0],s=r[1],c=r[2],f=Math.sqrt(u*u+s*s+c*c);return f<n.EPSILON?null:(u*=f=1/f,s*=f,c*=f,i=Math.sin(e),a=1-(o=Math.cos(e)),t[0]=u*u*a+o,t[1]=s*u*a+c*i,t[2]=c*u*a-s*i,t[3]=0,t[4]=u*s*a-c*i,t[5]=s*s*a+o,t[6]=c*s*a+u*i,t[7]=0,t[8]=u*c*a+s*i,t[9]=s*c*a-u*i,t[10]=c*c*a+o,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t)}function E(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=n,t[6]=r,t[7]=0,t[8]=0,t[9]=-r,t[10]=n,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function w(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=n,t[1]=0,t[2]=-r,t[3]=0,t[4]=0,t[5]=1,t[6]=0,t[7]=0,t[8]=r,t[9]=0,t[10]=n,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function O(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=n,t[1]=r,t[2]=0,t[3]=0,t[4]=-r,t[5]=n,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=1,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function R(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=n+n,s=i+i,c=o+o,f=n*u,l=n*s,h=n*c,d=i*s,v=i*c,_=o*c,m=a*u,p=a*s,y=a*c;return t[0]=1-(d+_),t[1]=l+y,t[2]=h-p,t[3]=0,t[4]=l-y,t[5]=1-(f+_),t[6]=v+m,t[7]=0,t[8]=h+p,t[9]=v-m,t[10]=1-(f+d),t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t}function P(t,e){let r=new n.ARRAY_TYPE(3),i=-e[0],o=-e[1],a=-e[2],u=e[3],s=e[4],c=e[5],f=e[6],l=e[7],h=i*i+o*o+a*a+u*u;return h>0?(r[0]=2*(s*u+l*i+c*a-f*o)/h,r[1]=2*(c*u+l*o+f*i-s*a)/h,r[2]=2*(f*u+l*a+s*o-c*i)/h):(r[0]=2*(s*u+l*i+c*a-f*o),r[1]=2*(c*u+l*o+f*i-s*a),r[2]=2*(f*u+l*a+s*o-c*i)),R(t,e,r),t}function S(t,e){return t[0]=e[12],t[1]=e[13],t[2]=e[14],t}function A(t,e){let r=e[0],n=e[1],i=e[2],o=e[4],a=e[5],u=e[6],s=e[8],c=e[9],f=e[10];return t[0]=Math.sqrt(r*r+n*n+i*i),t[1]=Math.sqrt(o*o+a*a+u*u),t[2]=Math.sqrt(s*s+c*c+f*f),t}function N(t,e){let r=e[0]+e[5]+e[10],n=0;return r>0?(n=2*Math.sqrt(r+1),t[3]=.25*n,t[0]=(e[6]-e[9])/n,t[1]=(e[8]-e[2])/n,t[2]=(e[1]-e[4])/n):e[0]>e[5]&&e[0]>e[10]?(n=2*Math.sqrt(1+e[0]-e[5]-e[10]),t[3]=(e[6]-e[9])/n,t[0]=.25*n,t[1]=(e[1]+e[4])/n,t[2]=(e[8]+e[2])/n):e[5]>e[10]?(n=2*Math.sqrt(1+e[5]-e[0]-e[10]),t[3]=(e[8]-e[2])/n,t[0]=(e[1]+e[4])/n,t[1]=.25*n,t[2]=(e[6]+e[9])/n):(n=2*Math.sqrt(1+e[10]-e[0]-e[5]),t[3]=(e[1]-e[4])/n,t[0]=(e[8]+e[2])/n,t[1]=(e[6]+e[9])/n,t[2]=.25*n),t}function C(t,e,r,n){let i=e[0],o=e[1],a=e[2],u=e[3],s=i+i,c=o+o,f=a+a,l=i*s,h=i*c,d=i*f,v=o*c,_=o*f,m=a*f,p=u*s,y=u*c,b=u*f,g=n[0],M=n[1],x=n[2];return t[0]=(1-(v+m))*g,t[1]=(h+b)*g,t[2]=(d-y)*g,t[3]=0,t[4]=(h-b)*M,t[5]=(1-(l+m))*M,t[6]=(_+p)*M,t[7]=0,t[8]=(d+y)*x,t[9]=(_-p)*x,t[10]=(1-(l+v))*x,t[11]=0,t[12]=r[0],t[13]=r[1],t[14]=r[2],t[15]=1,t}function I(t,e,r,n,i){let o=e[0],a=e[1],u=e[2],s=e[3],c=o+o,f=a+a,l=u+u,h=o*c,d=o*f,v=o*l,_=a*f,m=a*l,p=u*l,y=s*c,b=s*f,g=s*l,M=n[0],x=n[1],T=n[2],E=i[0],w=i[1],O=i[2],R=(1-(_+p))*M,P=(d+g)*M,S=(v-b)*M,A=(d-g)*x,N=(1-(h+p))*x,C=(m+y)*x,I=(v+b)*T,L=(m-y)*T,k=(1-(h+_))*T;return t[0]=R,t[1]=P,t[2]=S,t[3]=0,t[4]=A,t[5]=N,t[6]=C,t[7]=0,t[8]=I,t[9]=L,t[10]=k,t[11]=0,t[12]=r[0]+E-(R*E+A*w+I*O),t[13]=r[1]+w-(P*E+N*w+L*O),t[14]=r[2]+O-(S*E+C*w+k*O),t[15]=1,t}function L(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=r+r,u=n+n,s=i+i,c=r*a,f=n*a,l=n*u,h=i*a,d=i*u,v=i*s,_=o*a,m=o*u,p=o*s;return t[0]=1-l-v,t[1]=f+p,t[2]=h-m,t[3]=0,t[4]=f-p,t[5]=1-c-v,t[6]=d+_,t[7]=0,t[8]=h+m,t[9]=d-_,t[10]=1-c-l,t[11]=0,t[12]=0,t[13]=0,t[14]=0,t[15]=1,t}function k(t,e,r,n,i,o,a){let u=1/(r-e),s=1/(i-n),c=1/(o-a);return t[0]=2*o*u,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=2*o*s,t[6]=0,t[7]=0,t[8]=(r+e)*u,t[9]=(i+n)*s,t[10]=(a+o)*c,t[11]=-1,t[12]=0,t[13]=0,t[14]=a*o*2*c,t[15]=0,t}function F(t,e,r,n,i){let o,a=1/Math.tan(e/2);return t[0]=a/r,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=a,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[11]=-1,t[12]=0,t[13]=0,t[15]=0,null!=i&&i!==1/0?(o=1/(n-i),t[10]=(i+n)*o,t[14]=2*i*n*o):(t[10]=-1,t[14]=-2*n),t}function D(t,e,r,n){let i=Math.tan(e.upDegrees*Math.PI/180),o=Math.tan(e.downDegrees*Math.PI/180),a=Math.tan(e.leftDegrees*Math.PI/180),u=Math.tan(e.rightDegrees*Math.PI/180),s=2/(a+u),c=2/(i+o);return t[0]=s,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=c,t[6]=0,t[7]=0,t[8]=-(a-u)*s*.5,t[9]=(i-o)*c*.5,t[10]=n/(r-n),t[11]=-1,t[12]=0,t[13]=0,t[14]=n*r/(r-n),t[15]=0,t}function j(t,e,r,n,i,o,a){let u=1/(e-r),s=1/(n-i),c=1/(o-a);return t[0]=-2*u,t[1]=0,t[2]=0,t[3]=0,t[4]=0,t[5]=-2*s,t[6]=0,t[7]=0,t[8]=0,t[9]=0,t[10]=2*c,t[11]=0,t[12]=(e+r)*u,t[13]=(i+n)*s,t[14]=(a+o)*c,t[15]=1,t}function B(t,e,r,i){let o,a,u,s,f,l,h,d,v,_,m=e[0],p=e[1],y=e[2],b=i[0],g=i[1],M=i[2],x=r[0],T=r[1],E=r[2];return Math.abs(m-x)<n.EPSILON&&Math.abs(p-T)<n.EPSILON&&Math.abs(y-E)<n.EPSILON?c(t):(h=m-x,d=p-T,v=y-E,o=g*(v*=_=1/Math.sqrt(h*h+d*d+v*v))-M*(d*=_),a=M*(h*=_)-b*v,u=b*d-g*h,(_=Math.sqrt(o*o+a*a+u*u))?(o*=_=1/_,a*=_,u*=_):(o=0,a=0,u=0),s=d*u-v*a,f=v*o-h*u,l=h*a-d*o,(_=Math.sqrt(s*s+f*f+l*l))?(s*=_=1/_,f*=_,l*=_):(s=0,f=0,l=0),t[0]=o,t[1]=s,t[2]=h,t[3]=0,t[4]=a,t[5]=f,t[6]=d,t[7]=0,t[8]=u,t[9]=l,t[10]=v,t[11]=0,t[12]=-(o*m+a*p+u*y),t[13]=-(s*m+f*p+l*y),t[14]=-(h*m+d*p+v*y),t[15]=1,t)}function U(t,e,r,n){let i=e[0],o=e[1],a=e[2],u=n[0],s=n[1],c=n[2],f=i-r[0],l=o-r[1],h=a-r[2],d=f*f+l*l+h*h;d>0&&(f*=d=1/Math.sqrt(d),l*=d,h*=d);let v=s*h-c*l,_=c*f-u*h,m=u*l-s*f;return(d=v*v+_*_+m*m)>0&&(v*=d=1/Math.sqrt(d),_*=d,m*=d),t[0]=v,t[1]=_,t[2]=m,t[3]=0,t[4]=l*m-h*_,t[5]=h*v-f*m,t[6]=f*_-l*v,t[7]=0,t[8]=f,t[9]=l,t[10]=h,t[11]=0,t[12]=i,t[13]=o,t[14]=a,t[15]=1,t}function V(t){return"mat4("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+", "+t[9]+", "+t[10]+", "+t[11]+", "+t[12]+", "+t[13]+", "+t[14]+", "+t[15]+")"}function Y(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2)+Math.pow(t[9],2)+Math.pow(t[10],2)+Math.pow(t[11],2)+Math.pow(t[12],2)+Math.pow(t[13],2)+Math.pow(t[14],2)+Math.pow(t[15],2))}function G(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t[4]=e[4]+r[4],t[5]=e[5]+r[5],t[6]=e[6]+r[6],t[7]=e[7]+r[7],t[8]=e[8]+r[8],t[9]=e[9]+r[9],t[10]=e[10]+r[10],t[11]=e[11]+r[11],t[12]=e[12]+r[12],t[13]=e[13]+r[13],t[14]=e[14]+r[14],t[15]=e[15]+r[15],t}function q(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t[3]=e[3]-r[3],t[4]=e[4]-r[4],t[5]=e[5]-r[5],t[6]=e[6]-r[6],t[7]=e[7]-r[7],t[8]=e[8]-r[8],t[9]=e[9]-r[9],t[10]=e[10]-r[10],t[11]=e[11]-r[11],t[12]=e[12]-r[12],t[13]=e[13]-r[13],t[14]=e[14]-r[14],t[15]=e[15]-r[15],t}function H(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*r,t[5]=e[5]*r,t[6]=e[6]*r,t[7]=e[7]*r,t[8]=e[8]*r,t[9]=e[9]*r,t[10]=e[10]*r,t[11]=e[11]*r,t[12]=e[12]*r,t[13]=e[13]*r,t[14]=e[14]*r,t[15]=e[15]*r,t}function X(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t[3]=e[3]+r[3]*n,t[4]=e[4]+r[4]*n,t[5]=e[5]+r[5]*n,t[6]=e[6]+r[6]*n,t[7]=e[7]+r[7]*n,t[8]=e[8]+r[8]*n,t[9]=e[9]+r[9]*n,t[10]=e[10]+r[10]*n,t[11]=e[11]+r[11]*n,t[12]=e[12]+r[12]*n,t[13]=e[13]+r[13]*n,t[14]=e[14]+r[14]*n,t[15]=e[15]+r[15]*n,t}function W(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]&&t[4]===e[4]&&t[5]===e[5]&&t[6]===e[6]&&t[7]===e[7]&&t[8]===e[8]&&t[9]===e[9]&&t[10]===e[10]&&t[11]===e[11]&&t[12]===e[12]&&t[13]===e[13]&&t[14]===e[14]&&t[15]===e[15]}function K(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=t[4],s=t[5],c=t[6],f=t[7],l=t[8],h=t[9],d=t[10],v=t[11],_=t[12],m=t[13],p=t[14],y=t[15],b=e[0],g=e[1],M=e[2],x=e[3],T=e[4],E=e[5],w=e[6],O=e[7],R=e[8],P=e[9],S=e[10],A=e[11],N=e[12],C=e[13],I=e[14],L=e[15];return Math.abs(r-b)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(b))&&Math.abs(i-g)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(g))&&Math.abs(o-M)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(M))&&Math.abs(a-x)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(x))&&Math.abs(u-T)<=n.EPSILON*Math.max(1,Math.abs(u),Math.abs(T))&&Math.abs(s-E)<=n.EPSILON*Math.max(1,Math.abs(s),Math.abs(E))&&Math.abs(c-w)<=n.EPSILON*Math.max(1,Math.abs(c),Math.abs(w))&&Math.abs(f-O)<=n.EPSILON*Math.max(1,Math.abs(f),Math.abs(O))&&Math.abs(l-R)<=n.EPSILON*Math.max(1,Math.abs(l),Math.abs(R))&&Math.abs(h-P)<=n.EPSILON*Math.max(1,Math.abs(h),Math.abs(P))&&Math.abs(d-S)<=n.EPSILON*Math.max(1,Math.abs(d),Math.abs(S))&&Math.abs(v-A)<=n.EPSILON*Math.max(1,Math.abs(v),Math.abs(A))&&Math.abs(_-N)<=n.EPSILON*Math.max(1,Math.abs(_),Math.abs(N))&&Math.abs(m-C)<=n.EPSILON*Math.max(1,Math.abs(m),Math.abs(C))&&Math.abs(p-I)<=n.EPSILON*Math.max(1,Math.abs(p),Math.abs(I))&&Math.abs(y-L)<=n.EPSILON*Math.max(1,Math.abs(y),Math.abs(L))}const z=v,Q=q},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Renderer=e.RenderTexture=e.RenderView=e.ATTRIB_MASK=e.ATTRIB=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}();e.createWebGLContext=p;var i=r(3),o=r(2),a=r(21),u=r(8),s=r(6);function c(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var f=e.ATTRIB={POSITION:1,NORMAL:2,TANGENT:3,TEXCOORD_0:4,TEXCOORD_1:5,COLOR_0:6},l=e.ATTRIB_MASK={POSITION:1,NORMAL:2,TANGENT:4,TEXCOORD_0:8,TEXCOORD_1:16,COLOR_0:32},h=WebGLRenderingContext,d=new Float32Array([-.1,-1,-.2]),v=new Float32Array([3,3,3]),_=new RegExp("precision (lowp|mediump|highp) float;");function m(t){return 0==(t&t-1)}function p(t){t=t||{alpha:!1};var e=document.createElement("canvas"),r=t.webgl2?["webgl2"]:["webgl","experimental-webgl"],n=null,i=!0,o=!1,a=void 0;try{for(var u,s=r[Symbol.iterator]();!(i=(u=s.next()).done);i=!0){var c=u.value;if(n=e.getContext(c,t))break}}catch(t){o=!0,a=t}finally{try{!i&&s.return&&s.return()}finally{if(o)throw a}}if(!n){var f=t.webgl2?"WebGL 2":"WebGL";return console.error("This browser does not support "+f+"."),null}return n}e.RenderView=function(){function t(e,r){var n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:null,i=arguments.length>3&&void 0!==arguments[3]?arguments[3]:"left";c(this,t),this.projectionMatrix=e,this.viewMatrix=r,this.viewport=n,this._eye=i,this._eyeIndex="left"==i?0:1}return n(t,[{key:"eye",get:function(){return this._eye},set:function(t){this._eye=t,this._eyeIndex="left"==t?0:1}},{key:"eyeIndex",get:function(){return this._eyeIndex}}]),t}();var y=function(){function t(e,r,n){var i=this,o=arguments.length>3&&void 0!==arguments[3]?arguments[3]:0;c(this,t),this._target=e,this._usage=r,this._length=o,n instanceof Promise?(this._buffer=null,this._promise=n.then(function(t){return i._buffer=t,i})):(this._buffer=n,this._promise=Promise.resolve(this))}return n(t,[{key:"waitForComplete",value:function(){return this._promise}}]),t}(),b=function t(e){c(this,t),this._attrib_index=f[e.name],this._componentCount=e.componentCount,this._componentType=e.componentType,this._stride=e.stride,this._byteOffset=e.byteOffset,this._normalized=e.normalized},g=function t(e){c(this,t),this._buffer=e,this._attributes=[]},M=function(){function t(e){c(this,t),this._activeFrameId=0,this._instances=[],this._material=null,this.setPrimitive(e)}return n(t,[{key:"setPrimitive",value:function(t){this._mode=t.mode,this._elementCount=t.elementCount,this._promise=null,this._vao=null,this._complete=!1,this._attributeBuffers=[],this._attributeMask=0;var e=!0,r=!1,n=void 0;try{for(var i,o=t.attributes[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){var a=i.value;this._attributeMask|=l[a.name];var u=new b(a),c=!1,f=!0,h=!1,d=void 0;try{for(var v,_=this._attributeBuffers[Symbol.iterator]();!(f=(v=_.next()).done);f=!0){var m=v.value;if(m._buffer==a.buffer){m._attributes.push(u),c=!0;break}}}catch(t){h=!0,d=t}finally{try{!f&&_.return&&_.return()}finally{if(h)throw d}}if(!c){var p=new g(a.buffer);p._attributes.push(u),this._attributeBuffers.push(p)}}}catch(t){r=!0,n=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw n}}this._indexBuffer=null,this._indexByteOffset=0,this._indexType=0,t.indexBuffer&&(this._indexByteOffset=t.indexByteOffset,this._indexType=t.indexType,this._indexBuffer=t.indexBuffer),t._min?(this._min=s.vec3.clone(t._min),this._max=s.vec3.clone(t._max)):(this._min=null,this._max=null),null!=this._material&&this.waitForComplete()}},{key:"setRenderMaterial",value:function(t){this._material=t,this._promise=null,this._complete=!1,null!=this._material&&this.waitForComplete()}},{key:"markActive",value:function(t){if(this._complete&&this._activeFrameId!=t){if(this._material&&!this._material.markActive(t))return;this._activeFrameId=t}}},{key:"waitForComplete",value:function(){var t=this;if(!this._promise){if(!this._material)return Promise.reject("RenderPrimitive does not have a material");var e=[],r=!0,n=!1,i=void 0;try{for(var o,a=this._attributeBuffers[Symbol.iterator]();!(r=(o=a.next()).done);r=!0){var u=o.value;u._buffer._buffer||e.push(u._buffer._promise)}}catch(t){n=!0,i=t}finally{try{!r&&a.return&&a.return()}finally{if(n)throw i}}this._indexBuffer&&!this._indexBuffer._buffer&&e.push(this._indexBuffer._promise),this._promise=Promise.all(e).then(function(){return t._complete=!0,t})}return this._promise}},{key:"samplers",get:function(){return this._material._samplerDictionary}},{key:"uniforms",get:function(){return this._material._uniform_dictionary}}]),t}(),x=e.RenderTexture=function(){function t(e){c(this,t),this._texture=e,this._complete=!1,this._activeFrameId=0,this._activeCallback=null}return n(t,[{key:"markActive",value:function(t){this._activeCallback&&this._activeFrameId!=t&&(this._activeFrameId=t,this._activeCallback(this))}}]),t}(),T=s.mat4.create();function E(t,e,r,n,i){var o=(i&r)-(n&r);o&&(o>0?t.enable(e):t.disable(e))}var w=function(){function t(e,r,n){c(this,t),this._renderer=e,this._uniformName=r._uniformName,this._renderTexture=e._getRenderTexture(r._texture),this._index=n}return n(t,[{key:"texture",set:function(t){this._renderTexture=this._renderer._getRenderTexture(t)}}]),t}(),O=function(){function t(e){c(this,t),this._uniformName=e._uniformName,this._uniform=null,this._length=e._length,e._value instanceof Array?this._value=new Float32Array(e._value):this._value=new Float32Array([e._value])}return n(t,[{key:"value",set:function(t){if(1==this._value.length)this._value[0]=t;else for(var e=0;e<this._value.length;++e)this._value[e]=t[e]}}]),t}(),R=function(){function t(e,r,n){c(this,t),this._program=n,this._state=r.state._state,this._activeFrameId=0,this._completeForActiveFrame=!1,this._samplerDictionary={},this._samplers=[];for(var o=0;o<r._samplers.length;++o){var a=new w(e,r._samplers[o],o);this._samplers.push(a),this._samplerDictionary[a._uniformName]=a}this._uniform_dictionary={},this._uniforms=[];var u=!0,s=!1,f=void 0;try{for(var l,h=r._uniforms[Symbol.iterator]();!(u=(l=h.next()).done);u=!0){var d=l.value,v=new O(d);this._uniforms.push(v),this._uniform_dictionary[v._uniformName]=v}}catch(t){s=!0,f=t}finally{try{!u&&h.return&&h.return()}finally{if(s)throw f}}this._firstBind=!0,this._renderOrder=r.renderOrder,this._renderOrder==i.RENDER_ORDER.DEFAULT&&(this._state&i.CAP.BLEND?this._renderOrder=i.RENDER_ORDER.TRANSPARENT:this._renderOrder=i.RENDER_ORDER.OPAQUE)}return n(t,[{key:"bind",value:function(t){if(this._firstBind){for(var e=0;e<this._samplers.length;){var r=this._samplers[e];this._program.uniform[r._uniformName]?++e:this._samplers.splice(e,1)}for(var n=0;n<this._uniforms.length;){var i=this._uniforms[n];i._uniform=this._program.uniform[i._uniformName],i._uniform?++n:this._uniforms.splice(n,1)}this._firstBind=!1}var o=!0,a=!1,u=void 0;try{for(var s,c=this._samplers[Symbol.iterator]();!(o=(s=c.next()).done);o=!0){var f=s.value;t.activeTexture(t.TEXTURE0+f._index),f._renderTexture&&f._renderTexture._complete?t.bindTexture(t.TEXTURE_2D,f._renderTexture._texture):t.bindTexture(t.TEXTURE_2D,null)}}catch(t){a=!0,u=t}finally{try{!o&&c.return&&c.return()}finally{if(a)throw u}}var l=!0,h=!1,d=void 0;try{for(var v,_=this._uniforms[Symbol.iterator]();!(l=(v=_.next()).done);l=!0){var m=v.value;switch(m._length){case 1:t.uniform1fv(m._uniform,m._value);break;case 2:t.uniform2fv(m._uniform,m._value);break;case 3:t.uniform3fv(m._uniform,m._value);break;case 4:t.uniform4fv(m._uniform,m._value)}}}catch(t){h=!0,d=t}finally{try{!l&&_.return&&_.return()}finally{if(h)throw d}}}},{key:"markActive",value:function(t){if(this._activeFrameId!=t){this._activeFrameId=t,this._completeForActiveFrame=!0;for(var e=0;e<this._samplers.length;++e){var r=this._samplers[e];if(r._renderTexture){if(!r._renderTexture._complete){this._completeForActiveFrame=!1;break}r._renderTexture.markActive(t)}}}return this._completeForActiveFrame}},{key:"_capsDiff",value:function(t){return t&i.MAT_STATE.CAPS_RANGE^this._state&i.MAT_STATE.CAPS_RANGE}},{key:"_blendDiff",value:function(t){return this._state&i.CAP.BLEND?t&i.MAT_STATE.BLEND_FUNC_RANGE^this._state&i.MAT_STATE.BLEND_FUNC_RANGE:0}},{key:"_depthFuncDiff",value:function(t){return this._state&i.CAP.DEPTH_TEST?t&i.MAT_STATE.DEPTH_FUNC_RANGE^this._state&i.MAT_STATE.DEPTH_FUNC_RANGE:0}},{key:"cullFace",get:function(){return!!(this._state&i.CAP.CULL_FACE)}},{key:"blend",get:function(){return!!(this._state&i.CAP.BLEND)}},{key:"depthTest",get:function(){return!!(this._state&i.CAP.DEPTH_TEST)}},{key:"stencilTest",get:function(){return!!(this._state&i.CAP.STENCIL_TEST)}},{key:"colorMask",get:function(){return!!(this._state&i.CAP.COLOR_MASK)}},{key:"depthMask",get:function(){return!!(this._state&i.CAP.DEPTH_MASK)}},{key:"stencilMask",get:function(){return!!(this._state&i.CAP.STENCIL_MASK)}},{key:"depthFunc",get:function(){return((this._state&i.MAT_STATE.DEPTH_FUNC_RANGE)>>i.MAT_STATE.DEPTH_FUNC_SHIFT)+h.NEVER}},{key:"blendFuncSrc",get:function(){return(0,i.stateToBlendFunc)(this._state,i.MAT_STATE.BLEND_SRC_RANGE,i.MAT_STATE.BLEND_SRC_SHIFT)}},{key:"blendFuncDst",get:function(){return(0,i.stateToBlendFunc)(this._state,i.MAT_STATE.BLEND_DST_RANGE,i.MAT_STATE.BLEND_DST_SHIFT)}}]),t}();e.Renderer=function(){function t(e){c(this,t),this._gl=e||p(),this._frameId=0,this._programCache={},this._textureCache={},this._renderPrimitives=Array(i.RENDER_ORDER.DEFAULT),this._cameraPositions=[],this._vaoExt=e.getExtension("OES_vertex_array_object");var r=e.getShaderPrecisionFormat(e.FRAGMENT_SHADER,e.HIGH_FLOAT);this._defaultFragPrecision=r.precision>0?"highp":"mediump",this._depthMaskNeedsReset=!1,this._colorMaskNeedsReset=!1,this._globalLightColor=s.vec3.clone(v),this._globalLightDir=s.vec3.clone(d)}return n(t,[{key:"createRenderBuffer",value:function(t,e){var r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:h.STATIC_DRAW,n=this._gl,i=n.createBuffer();if(e instanceof Promise){var o=new y(t,r,e.then(function(e){return n.bindBuffer(t,i),n.bufferData(t,e,r),o._length=e.byteLength,i}));return o}return n.bindBuffer(t,i),n.bufferData(t,e,r),new y(t,r,i,e.byteLength)}},{key:"updateRenderBuffer",value:function(t,e){var r=this,n=arguments.length>2&&void 0!==arguments[2]?arguments[2]:0;if(t._buffer){var i=this._gl;i.bindBuffer(t._target,t._buffer),0==n&&t._length==e.byteLength?i.bufferData(t._target,e,t._usage):i.bufferSubData(t._target,n,e)}else t.waitForComplete().then(function(t){r.updateRenderBuffer(t,e,n)})}},{key:"createRenderPrimitive",value:function(t,e){var r=new M(t),n=this._getMaterialProgram(e,r),i=new R(this,e,n);return r.setRenderMaterial(i),this._renderPrimitives[i._renderOrder]||(this._renderPrimitives[i._renderOrder]=[]),this._renderPrimitives[i._renderOrder].push(r),r}},{key:"createMesh",value:function(t,e){var r=new o.Node;return r.addRenderPrimitive(this.createRenderPrimitive(t,e)),r}},{key:"drawViews",value:function(t,e){if(e){var r=this._gl;if(this._frameId++,e.markActive(this._frameId),1==t.length&&t[0].viewport){var n=t[0].viewport;this._gl.viewport(n.x,n.y,n.width,n.height)}for(var i=0;i<t.length;++i){s.mat4.invert(T,t[i].viewMatrix),this._cameraPositions.length<=i&&this._cameraPositions.push(s.vec3.create());var o=this._cameraPositions[i];s.vec3.set(o,0,0,0),s.vec3.transformMat4(o,o,T)}var a=!0,u=!1,c=void 0;try{for(var f,l=this._renderPrimitives[Symbol.iterator]();!(a=(f=l.next()).done);a=!0){var h=f.value;h&&h.length&&this._drawRenderPrimitiveSet(t,h)}}catch(t){u=!0,c=t}finally{try{!a&&l.return&&l.return()}finally{if(u)throw c}}this._vaoExt&&this._vaoExt.bindVertexArrayOES(null),this._depthMaskNeedsReset&&r.depthMask(!0),this._colorMaskNeedsReset&&r.colorMask(!0,!0,!0,!0)}}},{key:"_drawRenderPrimitiveSet",value:function(t,e){var r=this._gl,n=null,i=null,o=0,a=!0,u=!1,s=void 0;try{for(var c,f=e[Symbol.iterator]();!(a=(c=f.next()).done);a=!0){var l=c.value;if(l._activeFrameId==this._frameId){n!=l._material._program&&((n=l._material._program).use(),n.uniform.LIGHT_DIRECTION&&r.uniform3fv(n.uniform.LIGHT_DIRECTION,this._globalLightDir),n.uniform.LIGHT_COLOR&&r.uniform3fv(n.uniform.LIGHT_COLOR,this._globalLightColor),1==t.length&&(r.uniformMatrix4fv(n.uniform.PROJECTION_MATRIX,!1,t[0].projectionMatrix),r.uniformMatrix4fv(n.uniform.VIEW_MATRIX,!1,t[0].viewMatrix),r.uniform3fv(n.uniform.CAMERA_POSITION,this._cameraPositions[0]),r.uniform1i(n.uniform.EYE_INDEX,t[0].eyeIndex))),i!=l._material&&(this._bindMaterialState(l._material,i),l._material.bind(r,n,i),i=l._material),this._vaoExt?l._vao?this._vaoExt.bindVertexArrayOES(l._vao):(l._vao=this._vaoExt.createVertexArrayOES(),this._vaoExt.bindVertexArrayOES(l._vao),this._bindPrimitive(l)):(this._bindPrimitive(l,o),o=l._attributeMask);for(var h=0;h<t.length;++h){var d=t[h];if(t.length>1){if(d.viewport){var v=d.viewport;r.viewport(v.x,v.y,v.width,v.height)}r.uniformMatrix4fv(n.uniform.PROJECTION_MATRIX,!1,d.projectionMatrix),r.uniformMatrix4fv(n.uniform.VIEW_MATRIX,!1,d.viewMatrix),r.uniform3fv(n.uniform.CAMERA_POSITION,this._cameraPositions[h]),r.uniform1i(n.uniform.EYE_INDEX,d.eyeIndex)}var _=!0,m=!1,p=void 0;try{for(var y,b=l._instances[Symbol.iterator]();!(_=(y=b.next()).done);_=!0){var g=y.value;g._activeFrameId==this._frameId&&(r.uniformMatrix4fv(n.uniform.MODEL_MATRIX,!1,g.worldMatrix),l._indexBuffer?r.drawElements(l._mode,l._elementCount,l._indexType,l._indexByteOffset):r.drawArrays(l._mode,0,l._elementCount))}}catch(t){m=!0,p=t}finally{try{!_&&b.return&&b.return()}finally{if(m)throw p}}}}}}catch(t){u=!0,s=t}finally{try{!a&&f.return&&f.return()}finally{if(u)throw s}}}},{key:"_getRenderTexture",value:function(t){var e=this;if(!t)return null;var r=t.textureKey;if(!r)throw new Error("Texure does not have a valid key");if(r in this._textureCache)return this._textureCache[r];var n=this._gl,i=n.createTexture(),o=new x(i);return this._textureCache[r]=o,t instanceof u.DataTexture?(n.bindTexture(n.TEXTURE_2D,i),n.texImage2D(n.TEXTURE_2D,0,t.format,t.width,t.height,0,t.format,t._type,t._data),this._setSamplerParameters(t),o._complete=!0):t.waitForComplete().then(function(){n.bindTexture(n.TEXTURE_2D,i),n.texImage2D(n.TEXTURE_2D,0,t.format,t.format,n.UNSIGNED_BYTE,t.source),e._setSamplerParameters(t),o._complete=!0,t instanceof u.VideoTexture&&t._video.addEventListener("playing",function(){o._activeCallback=function(){t._video.paused||t._video.waiting||(n.bindTexture(n.TEXTURE_2D,i),n.texImage2D(n.TEXTURE_2D,0,t.format,t.format,n.UNSIGNED_BYTE,t.source))}})}),o}},{key:"_setSamplerParameters",value:function(t){var e=this._gl,r=t.sampler,n=m(t.width)&&m(t.height),i=n&&t.mipmap;i&&e.generateMipmap(e.TEXTURE_2D);var o=r.minFilter||(i?e.LINEAR_MIPMAP_LINEAR:e.LINEAR),a=r.wrapS||(n?e.REPEAT:e.CLAMP_TO_EDGE),u=r.wrapT||(n?e.REPEAT:e.CLAMP_TO_EDGE);e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MAG_FILTER,r.magFilter||e.LINEAR),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_MIN_FILTER,o),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_S,a),e.texParameteri(e.TEXTURE_2D,e.TEXTURE_WRAP_T,u)}},{key:"_getProgramKey",value:function(t,e){var r=t+":";for(var n in e)r+=n+"="+e[n]+",";return r}},{key:"_getMaterialProgram",value:function(t,e){var r=this,n=t.materialName,i=t.vertexSource,o=t.fragmentSource;if(null==n)throw new Error("Material does not have a name");if(null==i)throw new Error('Material "'+n+'" does not have a vertex source');if(null==o)throw new Error('Material "'+n+'" does not have a fragment source');var u=t.getProgramDefines(e),s=this._getProgramKey(n,u);if(s in this._programCache)return this._programCache[s];var c=i;c+="\nuniform mat4 PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX;\n\nvoid main() {\n  gl_Position = vertex_main(PROJECTION_MATRIX, VIEW_MATRIX, MODEL_MATRIX);\n}\n";var l=(o.match(_)?"":"precision "+this._defaultFragPrecision+" float;\n")+o;l+="\nvoid main() {\n  gl_FragColor = fragment_main();\n}\n";var h=new a.Program(this._gl,c,l,f,u);return this._programCache[s]=h,h.onNextUse(function(e){for(var n=0;n<t._samplers.length;++n){var i=t._samplers[n],o=e.uniform[i._uniformName];o&&r._gl.uniform1i(o,n)}}),h}},{key:"_bindPrimitive",value:function(t,e){var r=this._gl;if(e!=t._attributeMask)for(var n in f)t._attributeMask&l[n]?r.enableVertexAttribArray(f[n]):r.disableVertexAttribArray(f[n]);var i=!0,o=!1,a=void 0;try{for(var u,s=t._attributeBuffers[Symbol.iterator]();!(i=(u=s.next()).done);i=!0){var c=u.value;r.bindBuffer(r.ARRAY_BUFFER,c._buffer._buffer);var h=!0,d=!1,v=void 0;try{for(var _,m=c._attributes[Symbol.iterator]();!(h=(_=m.next()).done);h=!0){var p=_.value;r.vertexAttribPointer(p._attrib_index,p._componentCount,p._componentType,p._normalized,p._stride,p._byteOffset)}}catch(t){d=!0,v=t}finally{try{!h&&m.return&&m.return()}finally{if(d)throw v}}}}catch(t){o=!0,a=t}finally{try{!i&&s.return&&s.return()}finally{if(o)throw a}}t._indexBuffer?r.bindBuffer(r.ELEMENT_ARRAY_BUFFER,t._indexBuffer._buffer):r.bindBuffer(r.ELEMENT_ARRAY_BUFFER,null)}},{key:"_bindMaterialState",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:null,r=this._gl,n=t._state,o=e?e._state:~n;if(n!=o){if(t._capsDiff(o)){E(r,r.CULL_FACE,i.CAP.CULL_FACE,o,n),E(r,r.BLEND,i.CAP.BLEND,o,n),E(r,r.DEPTH_TEST,i.CAP.DEPTH_TEST,o,n),E(r,r.STENCIL_TEST,i.CAP.STENCIL_TEST,o,n);var a=(n&i.CAP.COLOR_MASK)-(o&i.CAP.COLOR_MASK);if(a){var u=a>1;this._colorMaskNeedsReset=!u,r.colorMask(u,u,u,u)}var s=(n&i.CAP.DEPTH_MASK)-(o&i.CAP.DEPTH_MASK);s&&(this._depthMaskNeedsReset=!(s>1),r.depthMask(s>1));var c=(n&i.CAP.STENCIL_MASK)-(o&i.CAP.STENCIL_MASK);c&&r.stencilMask(c>1)}t._blendDiff(o)&&r.blendFunc(t.blendFuncSrc,t.blendFuncDst),t._depthFuncDiff(o)&&r.depthFunc(t.depthFunc)}}},{key:"gl",get:function(){return this._gl}},{key:"globalLightColor",set:function(t){s.vec3.copy(this._globalLightColor,t)},get:function(){return s.vec3.clone(this._globalLightColor)}},{key:"globalLightDir",set:function(t){s.vec3.copy(this._globalLightDir,t)},get:function(){return s.vec3.clone(this._globalLightDir)}}]),t}()},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"fromMat4",function(){return o}),r.d(e,"clone",function(){return a}),r.d(e,"copy",function(){return u}),r.d(e,"fromValues",function(){return s}),r.d(e,"set",function(){return c}),r.d(e,"identity",function(){return f}),r.d(e,"transpose",function(){return l}),r.d(e,"invert",function(){return h}),r.d(e,"adjoint",function(){return d}),r.d(e,"determinant",function(){return v}),r.d(e,"multiply",function(){return _}),r.d(e,"translate",function(){return m}),r.d(e,"rotate",function(){return p}),r.d(e,"scale",function(){return y}),r.d(e,"fromTranslation",function(){return b}),r.d(e,"fromRotation",function(){return g}),r.d(e,"fromScaling",function(){return M}),r.d(e,"fromMat2d",function(){return x}),r.d(e,"fromQuat",function(){return T}),r.d(e,"normalFromMat4",function(){return E}),r.d(e,"projection",function(){return w}),r.d(e,"str",function(){return O}),r.d(e,"frob",function(){return R}),r.d(e,"add",function(){return P}),r.d(e,"subtract",function(){return S}),r.d(e,"multiplyScalar",function(){return A}),r.d(e,"multiplyScalarAndAdd",function(){return N}),r.d(e,"exactEquals",function(){return C}),r.d(e,"equals",function(){return I}),r.d(e,"mul",function(){return L}),r.d(e,"sub",function(){return k});var n=r(0);function i(){let t=new n.ARRAY_TYPE(9);return n.ARRAY_TYPE!=Float32Array&&(t[1]=0,t[2]=0,t[3]=0,t[5]=0,t[6]=0,t[7]=0),t[0]=1,t[4]=1,t[8]=1,t}function o(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[4],t[4]=e[5],t[5]=e[6],t[6]=e[8],t[7]=e[9],t[8]=e[10],t}function a(t){let e=new n.ARRAY_TYPE(9);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e[8]=t[8],e}function u(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t}function s(t,e,r,i,o,a,u,s,c){let f=new n.ARRAY_TYPE(9);return f[0]=t,f[1]=e,f[2]=r,f[3]=i,f[4]=o,f[5]=a,f[6]=u,f[7]=s,f[8]=c,f}function c(t,e,r,n,i,o,a,u,s,c){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t[4]=o,t[5]=a,t[6]=u,t[7]=s,t[8]=c,t}function f(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t}function l(t,e){if(t===e){let r=e[1],n=e[2],i=e[5];t[1]=e[3],t[2]=e[6],t[3]=r,t[5]=e[7],t[6]=n,t[7]=i}else t[0]=e[0],t[1]=e[3],t[2]=e[6],t[3]=e[1],t[4]=e[4],t[5]=e[7],t[6]=e[2],t[7]=e[5],t[8]=e[8];return t}function h(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=e[6],c=e[7],f=e[8],l=f*a-u*c,h=-f*o+u*s,d=c*o-a*s,v=r*l+n*h+i*d;return v?(v=1/v,t[0]=l*v,t[1]=(-f*n+i*c)*v,t[2]=(u*n-i*a)*v,t[3]=h*v,t[4]=(f*r-i*s)*v,t[5]=(-u*r+i*o)*v,t[6]=d*v,t[7]=(-c*r+n*s)*v,t[8]=(a*r-n*o)*v,t):null}function d(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=e[6],c=e[7],f=e[8];return t[0]=a*f-u*c,t[1]=i*c-n*f,t[2]=n*u-i*a,t[3]=u*s-o*f,t[4]=r*f-i*s,t[5]=i*o-r*u,t[6]=o*c-a*s,t[7]=n*s-r*c,t[8]=r*a-n*o,t}function v(t){let e=t[0],r=t[1],n=t[2],i=t[3],o=t[4],a=t[5],u=t[6],s=t[7],c=t[8];return e*(c*o-a*s)+r*(-c*i+a*u)+n*(s*i-o*u)}function _(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=e[6],f=e[7],l=e[8],h=r[0],d=r[1],v=r[2],_=r[3],m=r[4],p=r[5],y=r[6],b=r[7],g=r[8];return t[0]=h*n+d*a+v*c,t[1]=h*i+d*u+v*f,t[2]=h*o+d*s+v*l,t[3]=_*n+m*a+p*c,t[4]=_*i+m*u+p*f,t[5]=_*o+m*s+p*l,t[6]=y*n+b*a+g*c,t[7]=y*i+b*u+g*f,t[8]=y*o+b*s+g*l,t}function m(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=e[6],f=e[7],l=e[8],h=r[0],d=r[1];return t[0]=n,t[1]=i,t[2]=o,t[3]=a,t[4]=u,t[5]=s,t[6]=h*n+d*a+c,t[7]=h*i+d*u+f,t[8]=h*o+d*s+l,t}function p(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=e[6],f=e[7],l=e[8],h=Math.sin(r),d=Math.cos(r);return t[0]=d*n+h*a,t[1]=d*i+h*u,t[2]=d*o+h*s,t[3]=d*a-h*n,t[4]=d*u-h*i,t[5]=d*s-h*o,t[6]=c,t[7]=f,t[8]=l,t}function y(t,e,r){let n=r[0],i=r[1];return t[0]=n*e[0],t[1]=n*e[1],t[2]=n*e[2],t[3]=i*e[3],t[4]=i*e[4],t[5]=i*e[5],t[6]=e[6],t[7]=e[7],t[8]=e[8],t}function b(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=0,t[4]=1,t[5]=0,t[6]=e[0],t[7]=e[1],t[8]=1,t}function g(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=n,t[1]=r,t[2]=0,t[3]=-r,t[4]=n,t[5]=0,t[6]=0,t[7]=0,t[8]=1,t}function M(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=0,t[4]=e[1],t[5]=0,t[6]=0,t[7]=0,t[8]=1,t}function x(t,e){return t[0]=e[0],t[1]=e[1],t[2]=0,t[3]=e[2],t[4]=e[3],t[5]=0,t[6]=e[4],t[7]=e[5],t[8]=1,t}function T(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=r+r,u=n+n,s=i+i,c=r*a,f=n*a,l=n*u,h=i*a,d=i*u,v=i*s,_=o*a,m=o*u,p=o*s;return t[0]=1-l-v,t[3]=f-p,t[6]=h+m,t[1]=f+p,t[4]=1-c-v,t[7]=d-_,t[2]=h-m,t[5]=d+_,t[8]=1-c-l,t}function E(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=e[6],c=e[7],f=e[8],l=e[9],h=e[10],d=e[11],v=e[12],_=e[13],m=e[14],p=e[15],y=r*u-n*a,b=r*s-i*a,g=r*c-o*a,M=n*s-i*u,x=n*c-o*u,T=i*c-o*s,E=f*_-l*v,w=f*m-h*v,O=f*p-d*v,R=l*m-h*_,P=l*p-d*_,S=h*p-d*m,A=y*S-b*P+g*R+M*O-x*w+T*E;return A?(A=1/A,t[0]=(u*S-s*P+c*R)*A,t[1]=(s*O-a*S-c*w)*A,t[2]=(a*P-u*O+c*E)*A,t[3]=(i*P-n*S-o*R)*A,t[4]=(r*S-i*O+o*w)*A,t[5]=(n*O-r*P-o*E)*A,t[6]=(_*T-m*x+p*M)*A,t[7]=(m*g-v*T-p*b)*A,t[8]=(v*x-_*g+p*y)*A,t):null}function w(t,e,r){return t[0]=2/e,t[1]=0,t[2]=0,t[3]=0,t[4]=-2/r,t[5]=0,t[6]=-1,t[7]=1,t[8]=1,t}function O(t){return"mat3("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+", "+t[8]+")"}function R(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+Math.pow(t[6],2)+Math.pow(t[7],2)+Math.pow(t[8],2))}function P(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t[4]=e[4]+r[4],t[5]=e[5]+r[5],t[6]=e[6]+r[6],t[7]=e[7]+r[7],t[8]=e[8]+r[8],t}function S(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t[3]=e[3]-r[3],t[4]=e[4]-r[4],t[5]=e[5]-r[5],t[6]=e[6]-r[6],t[7]=e[7]-r[7],t[8]=e[8]-r[8],t}function A(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*r,t[5]=e[5]*r,t[6]=e[6]*r,t[7]=e[7]*r,t[8]=e[8]*r,t}function N(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t[3]=e[3]+r[3]*n,t[4]=e[4]+r[4]*n,t[5]=e[5]+r[5]*n,t[6]=e[6]+r[6]*n,t[7]=e[7]+r[7]*n,t[8]=e[8]+r[8]*n,t}function C(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]&&t[4]===e[4]&&t[5]===e[5]&&t[6]===e[6]&&t[7]===e[7]&&t[8]===e[8]}function I(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=t[4],s=t[5],c=t[6],f=t[7],l=t[8],h=e[0],d=e[1],v=e[2],_=e[3],m=e[4],p=e[5],y=e[6],b=e[7],g=e[8];return Math.abs(r-h)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(h))&&Math.abs(i-d)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(d))&&Math.abs(o-v)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(v))&&Math.abs(a-_)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(_))&&Math.abs(u-m)<=n.EPSILON*Math.max(1,Math.abs(u),Math.abs(m))&&Math.abs(s-p)<=n.EPSILON*Math.max(1,Math.abs(s),Math.abs(p))&&Math.abs(c-y)<=n.EPSILON*Math.max(1,Math.abs(c),Math.abs(y))&&Math.abs(f-b)<=n.EPSILON*Math.max(1,Math.abs(f),Math.abs(b))&&Math.abs(l-g)<=n.EPSILON*Math.max(1,Math.abs(l),Math.abs(g))}const L=_,k=S},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.BoxBuilder=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(9);e.BoxBuilder=function(t){function e(){return function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,e),function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}(e,i.GeometryBuilderBase),n(e,[{key:"pushBox",value:function(t,e){var r=this.primitiveStream,n=.5*(e[0]-t[0]),i=.5*(e[1]-t[1]),o=.5*(e[2]-t[2]),a=t[0]+n,u=t[1]+i,s=t[2]+o;r.startGeometry();var c=r.nextVertexIndex;r.pushTriangle(c,c+1,c+2),r.pushTriangle(c,c+2,c+3),r.pushVertex(-n+a,-i+u,-o+s,0,1,0,-1,0),r.pushVertex(+n+a,-i+u,-o+s,1,1,0,-1,0),r.pushVertex(+n+a,-i+u,+o+s,1,0,0,-1,0),r.pushVertex(-n+a,-i+u,+o+s,0,0,0,-1,0),c=r.nextVertexIndex,r.pushTriangle(c,c+2,c+1),r.pushTriangle(c,c+3,c+2),r.pushVertex(-n+a,+i+u,-o+s,0,0,0,1,0),r.pushVertex(+n+a,+i+u,-o+s,1,0,0,1,0),r.pushVertex(+n+a,+i+u,+o+s,1,1,0,1,0),r.pushVertex(-n+a,+i+u,+o+s,0,1,0,1,0),c=r.nextVertexIndex,r.pushTriangle(c,c+2,c+1),r.pushTriangle(c,c+3,c+2),r.pushVertex(-n+a,-i+u,-o+s,0,1,-1,0,0),r.pushVertex(-n+a,+i+u,-o+s,0,0,-1,0,0),r.pushVertex(-n+a,+i+u,+o+s,1,0,-1,0,0),r.pushVertex(-n+a,-i+u,+o+s,1,1,-1,0,0),c=r.nextVertexIndex,r.pushTriangle(c,c+1,c+2),r.pushTriangle(c,c+2,c+3),r.pushVertex(+n+a,-i+u,-o+s,1,1,1,0,0),r.pushVertex(+n+a,+i+u,-o+s,1,0,1,0,0),r.pushVertex(+n+a,+i+u,+o+s,0,0,1,0,0),r.pushVertex(+n+a,-i+u,+o+s,0,1,1,0,0),c=r.nextVertexIndex,r.pushTriangle(c,c+2,c+1),r.pushTriangle(c,c+3,c+2),r.pushVertex(-n+a,-i+u,-o+s,1,1,0,0,-1),r.pushVertex(+n+a,-i+u,-o+s,0,1,0,0,-1),r.pushVertex(+n+a,+i+u,-o+s,0,0,0,0,-1),r.pushVertex(-n+a,+i+u,-o+s,1,0,0,0,-1),c=r.nextVertexIndex,r.pushTriangle(c,c+1,c+2),r.pushTriangle(c,c+2,c+3),r.pushVertex(-n+a,-i+u,+o+s,0,1,0,0,1),r.pushVertex(+n+a,-i+u,+o+s,1,1,0,0,1),r.pushVertex(+n+a,+i+u,+o+s,1,0,0,0,1),r.pushVertex(-n+a,+i+u,+o+s,0,0,0,0,1),r.endGeometry()}},{key:"pushCube",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:[0,0,0],e=.5*(arguments.length>1&&void 0!==arguments[1]?arguments[1]:1);this.pushBox([t[0]-e,t[1]-e,t[2]-e],[t[0]+e,t[1]+e,t[2]+e])}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.PbrMaterial=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(11);e.PbrMaterial=function(t){function e(){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,e);var t=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.baseColor=t.defineSampler("baseColorTex"),t.metallicRoughness=t.defineSampler("metallicRoughnessTex"),t.normal=t.defineSampler("normalTex"),t.occlusion=t.defineSampler("occlusionTex"),t.emissive=t.defineSampler("emissiveTex"),t.baseColorFactor=t.defineUniform("baseColorFactor",[1,1,1,1]),t.metallicRoughnessFactor=t.defineUniform("metallicRoughnessFactor",[1,1]),t.occlusionStrength=t.defineUniform("occlusionStrength",1),t.emissiveFactor=t.defineUniform("emissiveFactor",[0,0,0]),t}return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}(e,i.Material),n(e,[{key:"getProgramDefines",value:function(t){var e={};return t._attributeMask&o.ATTRIB_MASK.COLOR_0&&(e.USE_VERTEX_COLOR=1),t._attributeMask&o.ATTRIB_MASK.TEXCOORD_0&&(this.baseColor.texture&&(e.USE_BASE_COLOR_MAP=1),this.normal.texture&&t._attributeMask&o.ATTRIB_MASK.TANGENT&&(e.USE_NORMAL_MAP=1),this.metallicRoughness.texture&&(e.USE_METAL_ROUGH_MAP=1),this.occlusion.texture&&(e.USE_OCCLUSION=1),this.emissive.texture&&(e.USE_EMISSIVE_TEXTURE=1)),this.metallicRoughness.texture&&t._attributeMask&o.ATTRIB_MASK.TEXCOORD_0||1!=this.metallicRoughnessFactor.value[1]||(e.FULLY_ROUGH=1),e}},{key:"materialName",get:function(){return"PBR"}},{key:"vertexSource",get:function(){return"\nattribute vec3 POSITION, NORMAL;\nattribute vec2 TEXCOORD_0, TEXCOORD_1;\n\nuniform vec3 CAMERA_POSITION;\nuniform vec3 LIGHT_DIRECTION;\n\nvarying vec3 vLight; // Vector from vertex to light.\nvarying vec3 vView; // Vector from vertex to camera.\nvarying vec2 vTex;\n\n#ifdef USE_NORMAL_MAP\nattribute vec4 TANGENT;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_VERTEX_COLOR\nattribute vec4 COLOR_0;\nvarying vec4 vCol;\n#endif\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vec3 n = normalize(vec3(model * vec4(NORMAL, 0.0)));\n#ifdef USE_NORMAL_MAP\n  vec3 t = normalize(vec3(model * vec4(TANGENT.xyz, 0.0)));\n  vec3 b = cross(n, t) * TANGENT.w;\n  vTBN = mat3(t, b, n);\n#else\n  vNorm = n;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  vCol = COLOR_0;\n#endif\n\n  vTex = TEXCOORD_0;\n  vec4 mPos = model * vec4(POSITION, 1.0);\n  vLight = -LIGHT_DIRECTION;\n  vView = CAMERA_POSITION - mPos.xyz;\n  return proj * view * mPos;\n}"}},{key:"fragmentSource",get:function(){return"\n#define M_PI 3.14159265\n\nuniform vec4 baseColorFactor;\n#ifdef USE_BASE_COLOR_MAP\nuniform sampler2D baseColorTex;\n#endif\n\nvarying vec3 vLight;\nvarying vec3 vView;\nvarying vec2 vTex;\n\n#ifdef USE_VERTEX_COLOR\nvarying vec4 vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\nuniform sampler2D normalTex;\nvarying mat3 vTBN;\n#else\nvarying vec3 vNorm;\n#endif\n\n#ifdef USE_METAL_ROUGH_MAP\nuniform sampler2D metallicRoughnessTex;\n#endif\nuniform vec2 metallicRoughnessFactor;\n\n#ifdef USE_OCCLUSION\nuniform sampler2D occlusionTex;\nuniform float occlusionStrength;\n#endif\n\n#ifdef USE_EMISSIVE_TEXTURE\nuniform sampler2D emissiveTex;\n#endif\nuniform vec3 emissiveFactor;\n\nuniform vec3 LIGHT_COLOR;\n\nconst vec3 dielectricSpec = vec3(0.04);\nconst vec3 black = vec3(0.0);\n\n\nvec3 lambertDiffuse(vec3 cDiff) {\n  return cDiff / M_PI;\n}\n\nfloat specD(float a, float nDotH) {\n  float aSqr = a * a;\n  float f = ((nDotH * nDotH) * (aSqr - 1.0) + 1.0);\n  return aSqr / (M_PI * f * f);\n}\n\nfloat specG(float roughness, float nDotL, float nDotV) {\n  float k = (roughness + 1.0) * (roughness + 1.0) / 8.0;\n  float gl = nDotL / (nDotL * (1.0 - k) + k);\n  float gv = nDotV / (nDotV * (1.0 - k) + k);\n  return gl * gv;\n}\n\nvec3 specF(float vDotH, vec3 F0) {\n  float exponent = (-5.55473 * vDotH - 6.98316) * vDotH;\n  float base = 2.0;\n  return F0 + (1.0 - F0) * pow(base, exponent);\n}\n\nvec4 fragment_main() {\n#ifdef USE_BASE_COLOR_MAP\n  vec4 baseColor = texture2D(baseColorTex, vTex) * baseColorFactor;\n#else\n  vec4 baseColor = baseColorFactor;\n#endif\n\n#ifdef USE_VERTEX_COLOR\n  baseColor *= vCol;\n#endif\n\n#ifdef USE_NORMAL_MAP\n  vec3 n = texture2D(normalTex, vTex).rgb;\n  n = normalize(vTBN * (2.0 * n - 1.0));\n#else\n  vec3 n = normalize(vNorm);\n#endif\n\n#ifdef FULLY_ROUGH\n  float metallic = 0.0;\n#else\n  float metallic = metallicRoughnessFactor.x;\n#endif\n\n  float roughness = metallicRoughnessFactor.y;\n\n#ifdef USE_METAL_ROUGH_MAP\n  vec4 metallicRoughness = texture2D(metallicRoughnessTex, vTex);\n  metallic *= metallicRoughness.b;\n  roughness *= metallicRoughness.g;\n#endif\n  \n  vec3 l = normalize(vLight);\n  vec3 v = normalize(vView);\n  vec3 h = normalize(l+v);\n\n  float nDotL = clamp(dot(n, l), 0.001, 1.0);\n  float nDotV = abs(dot(n, v)) + 0.001;\n  float nDotH = max(dot(n, h), 0.0);\n  float vDotH = max(dot(v, h), 0.0);\n\n  // From GLTF Spec\n  vec3 cDiff = mix(baseColor.rgb * (1.0 - dielectricSpec.r), black, metallic); // Diffuse color\n  vec3 F0 = mix(dielectricSpec, baseColor.rgb, metallic); // Specular color\n  float a = roughness * roughness;\n\n#ifdef FULLY_ROUGH\n  vec3 specular = F0 * 0.45;\n#else\n  vec3 F = specF(vDotH, F0);\n  float D = specD(a, nDotH);\n  float G = specG(roughness, nDotL, nDotV);\n  vec3 specular = (D * F * G) / (4.0 * nDotL * nDotV);\n#endif\n  float halfLambert = dot(n, l) * 0.5 + 0.5;\n  halfLambert *= halfLambert;\n\n  vec3 color = (halfLambert * LIGHT_COLOR * lambertDiffuse(cDiff)) + specular;\n\n#ifdef USE_OCCLUSION\n  float occlusion = texture2D(occlusionTex, vTex).r;\n  color = mix(color, color * occlusion, occlusionStrength);\n#endif\n  \n  vec3 emissive = emissiveFactor;\n#ifdef USE_EMISSIVE_TEXTURE\n  emissive *= texture2D(emissiveTex, vTex).rgb;\n#endif\n  color += emissive;\n\n  // gamma correction\n  //color = pow(color, vec3(1.0/2.2));\n\n  return vec4(color, baseColor.a);\n}"}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=r(2);Object.defineProperty(e,"Node",{enumerable:!0,get:function(){return n.Node}});var i=r(11);Object.defineProperty(e,"Renderer",{enumerable:!0,get:function(){return i.Renderer}}),Object.defineProperty(e,"createWebGLContext",{enumerable:!0,get:function(){return i.createWebGLContext}});var o=r(8);Object.defineProperty(e,"UrlTexture",{enumerable:!0,get:function(){return o.UrlTexture}});var a=r(9);Object.defineProperty(e,"PrimitiveStream",{enumerable:!0,get:function(){return a.PrimitiveStream}});var u=r(13);Object.defineProperty(e,"BoxBuilder",{enumerable:!0,get:function(){return u.BoxBuilder}});var s=r(14);Object.defineProperty(e,"PbrMaterial",{enumerable:!0,get:function(){return s.PbrMaterial}});var c=r(6);Object.defineProperty(e,"mat4",{enumerable:!0,get:function(){return c.mat4}}),Object.defineProperty(e,"mat3",{enumerable:!0,get:function(){return c.mat3}}),Object.defineProperty(e,"vec3",{enumerable:!0,get:function(){return c.vec3}}),Object.defineProperty(e,"vec4",{enumerable:!0,get:function(){return c.vec4}}),Object.defineProperty(e,"quat",{enumerable:!0,get:function(){return c.quat}});var f=r(22);Object.defineProperty(e,"BoundsRenderer",{enumerable:!0,get:function(){return f.BoundsRenderer}});var l=r(23);Object.defineProperty(e,"ButtonNode",{enumerable:!0,get:function(){return l.ButtonNode}});var h=r(24);Object.defineProperty(e,"DropShadowNode",{enumerable:!0,get:function(){return h.DropShadowNode}});var d=r(25);Object.defineProperty(e,"CubeSeaNode",{enumerable:!0,get:function(){return d.CubeSeaNode}});var v=r(26);Object.defineProperty(e,"Gltf2Node",{enumerable:!0,get:function(){return v.Gltf2Node}});var _=r(28);Object.defineProperty(e,"SkyboxNode",{enumerable:!0,get:function(){return _.SkyboxNode}});var m=r(29);Object.defineProperty(e,"VideoNode",{enumerable:!0,get:function(){return m.VideoNode}});var p=r(30);Object.defineProperty(e,"WebXRView",{enumerable:!0,get:function(){return p.WebXRView}}),Object.defineProperty(e,"Scene",{enumerable:!0,get:function(){return p.Scene}});var y=r(34);Object.defineProperty(e,"FallbackHelper",{enumerable:!0,get:function(){return y.FallbackHelper}});var b=r(35);Object.defineProperty(e,"QueryArgs",{enumerable:!0,get:function(){return b.QueryArgs}})},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Ray=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(6);var o=i.mat3.create();e.Ray=function(){function t(){var e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:null;!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.origin=i.vec3.create(),this._dir=i.vec3.create(),this._dir[2]=-1,e&&(i.vec3.transformMat4(this.origin,this.origin,e),i.mat3.fromMat4(o,e),i.vec3.transformMat3(this._dir,this._dir,o)),this.dir=this._dir}return n(t,[{key:"intersectsAABB",value:function(t,e){var r=this,n=[t,e],o=(n[r.sign[0]][0]-r.origin[0])*r.inv_dir[0],a=(n[1-r.sign[0]][0]-r.origin[0])*r.inv_dir[0],u=(n[r.sign[1]][1]-r.origin[1])*r.inv_dir[1],s=(n[1-r.sign[1]][1]-r.origin[1])*r.inv_dir[1];if(o>s||u>a)return null;u>o&&(o=u),s<a&&(a=s);var c=(n[r.sign[2]][2]-r.origin[2])*r.inv_dir[2],f=(n[1-r.sign[2]][2]-r.origin[2])*r.inv_dir[2];if(o>f||c>a)return null;c>o&&(o=c),f<a&&(a=f);var l=-1;if(o>0&&a>0)l=Math.min(o,a);else if(o>0)l=o;else{if(!(a>0))return null;l=a}l-=.02;var h=i.vec3.clone(this._dir);return i.vec3.scale(h,h,l),i.vec3.add(h,h,this.origin),h}},{key:"dir",get:function(){return this._dir},set:function(t){this._dir=i.vec3.copy(this._dir,t),i.vec3.normalize(this._dir,this._dir),this.inv_dir=i.vec3.fromValues(1/this._dir[0],1/this._dir[1],1/this._dir[2]),this.sign=[this.inv_dir[0]<0?1:0,this.inv_dir[1]<0?1:0,this.inv_dir[2]<0?1:0]}}]),t}()},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"copy",function(){return a}),r.d(e,"identity",function(){return u}),r.d(e,"fromValues",function(){return s}),r.d(e,"set",function(){return c}),r.d(e,"transpose",function(){return f}),r.d(e,"invert",function(){return l}),r.d(e,"adjoint",function(){return h}),r.d(e,"determinant",function(){return d}),r.d(e,"multiply",function(){return v}),r.d(e,"rotate",function(){return _}),r.d(e,"scale",function(){return m}),r.d(e,"fromRotation",function(){return p}),r.d(e,"fromScaling",function(){return y}),r.d(e,"str",function(){return b}),r.d(e,"frob",function(){return g}),r.d(e,"LDU",function(){return M}),r.d(e,"add",function(){return x}),r.d(e,"subtract",function(){return T}),r.d(e,"exactEquals",function(){return E}),r.d(e,"equals",function(){return w}),r.d(e,"multiplyScalar",function(){return O}),r.d(e,"multiplyScalarAndAdd",function(){return R}),r.d(e,"mul",function(){return P}),r.d(e,"sub",function(){return S});var n=r(0);function i(){let t=new n.ARRAY_TYPE(4);return n.ARRAY_TYPE!=Float32Array&&(t[1]=0,t[2]=0),t[0]=1,t[3]=1,t}function o(t){let e=new n.ARRAY_TYPE(4);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e}function a(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t}function u(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t}function s(t,e,r,i){let o=new n.ARRAY_TYPE(4);return o[0]=t,o[1]=e,o[2]=r,o[3]=i,o}function c(t,e,r,n,i){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t}function f(t,e){if(t===e){let r=e[1];t[1]=e[2],t[2]=r}else t[0]=e[0],t[1]=e[2],t[2]=e[1],t[3]=e[3];return t}function l(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=r*o-i*n;return a?(a=1/a,t[0]=o*a,t[1]=-n*a,t[2]=-i*a,t[3]=r*a,t):null}function h(t,e){let r=e[0];return t[0]=e[3],t[1]=-e[1],t[2]=-e[2],t[3]=r,t}function d(t){return t[0]*t[3]-t[2]*t[1]}function v(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=r[0],s=r[1],c=r[2],f=r[3];return t[0]=n*u+o*s,t[1]=i*u+a*s,t[2]=n*c+o*f,t[3]=i*c+a*f,t}function _(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=Math.sin(r),s=Math.cos(r);return t[0]=n*s+o*u,t[1]=i*s+a*u,t[2]=n*-u+o*s,t[3]=i*-u+a*s,t}function m(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=r[0],s=r[1];return t[0]=n*u,t[1]=i*u,t[2]=o*s,t[3]=a*s,t}function p(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=n,t[1]=r,t[2]=-r,t[3]=n,t}function y(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=e[1],t}function b(t){return"mat2("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+")"}function g(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2))}function M(t,e,r,n){return t[2]=n[2]/n[0],r[0]=n[0],r[1]=n[1],r[3]=n[3]-t[2]*r[1],[t,e,r]}function x(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t}function T(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t[3]=e[3]-r[3],t}function E(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]}function w(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=e[0],s=e[1],c=e[2],f=e[3];return Math.abs(r-u)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(u))&&Math.abs(i-s)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(s))&&Math.abs(o-c)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(c))&&Math.abs(a-f)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(f))}function O(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t}function R(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t[3]=e[3]+r[3]*n,t}const P=v,S=T},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"copy",function(){return a}),r.d(e,"identity",function(){return u}),r.d(e,"fromValues",function(){return s}),r.d(e,"set",function(){return c}),r.d(e,"invert",function(){return f}),r.d(e,"determinant",function(){return l}),r.d(e,"multiply",function(){return h}),r.d(e,"rotate",function(){return d}),r.d(e,"scale",function(){return v}),r.d(e,"translate",function(){return _}),r.d(e,"fromRotation",function(){return m}),r.d(e,"fromScaling",function(){return p}),r.d(e,"fromTranslation",function(){return y}),r.d(e,"str",function(){return b}),r.d(e,"frob",function(){return g}),r.d(e,"add",function(){return M}),r.d(e,"subtract",function(){return x}),r.d(e,"multiplyScalar",function(){return T}),r.d(e,"multiplyScalarAndAdd",function(){return E}),r.d(e,"exactEquals",function(){return w}),r.d(e,"equals",function(){return O}),r.d(e,"mul",function(){return R}),r.d(e,"sub",function(){return P});var n=r(0);function i(){let t=new n.ARRAY_TYPE(6);return n.ARRAY_TYPE!=Float32Array&&(t[1]=0,t[2]=0,t[4]=0,t[5]=0),t[0]=1,t[3]=1,t}function o(t){let e=new n.ARRAY_TYPE(6);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e}function a(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t}function u(t){return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t[4]=0,t[5]=0,t}function s(t,e,r,i,o,a){let u=new n.ARRAY_TYPE(6);return u[0]=t,u[1]=e,u[2]=r,u[3]=i,u[4]=o,u[5]=a,u}function c(t,e,r,n,i,o,a){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t[4]=o,t[5]=a,t}function f(t,e){let r=e[0],n=e[1],i=e[2],o=e[3],a=e[4],u=e[5],s=r*o-n*i;return s?(s=1/s,t[0]=o*s,t[1]=-n*s,t[2]=-i*s,t[3]=r*s,t[4]=(i*u-o*a)*s,t[5]=(n*a-r*u)*s,t):null}function l(t){return t[0]*t[3]-t[1]*t[2]}function h(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=r[0],f=r[1],l=r[2],h=r[3],d=r[4],v=r[5];return t[0]=n*c+o*f,t[1]=i*c+a*f,t[2]=n*l+o*h,t[3]=i*l+a*h,t[4]=n*d+o*v+u,t[5]=i*d+a*v+s,t}function d(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=Math.sin(r),f=Math.cos(r);return t[0]=n*f+o*c,t[1]=i*f+a*c,t[2]=n*-c+o*f,t[3]=i*-c+a*f,t[4]=u,t[5]=s,t}function v(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=r[0],f=r[1];return t[0]=n*c,t[1]=i*c,t[2]=o*f,t[3]=a*f,t[4]=u,t[5]=s,t}function _(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=e[4],s=e[5],c=r[0],f=r[1];return t[0]=n,t[1]=i,t[2]=o,t[3]=a,t[4]=n*c+o*f+u,t[5]=i*c+a*f+s,t}function m(t,e){let r=Math.sin(e),n=Math.cos(e);return t[0]=n,t[1]=r,t[2]=-r,t[3]=n,t[4]=0,t[5]=0,t}function p(t,e){return t[0]=e[0],t[1]=0,t[2]=0,t[3]=e[1],t[4]=0,t[5]=0,t}function y(t,e){return t[0]=1,t[1]=0,t[2]=0,t[3]=1,t[4]=e[0],t[5]=e[1],t}function b(t){return"mat2d("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+")"}function g(t){return Math.sqrt(Math.pow(t[0],2)+Math.pow(t[1],2)+Math.pow(t[2],2)+Math.pow(t[3],2)+Math.pow(t[4],2)+Math.pow(t[5],2)+1)}function M(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t[4]=e[4]+r[4],t[5]=e[5]+r[5],t}function x(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t[2]=e[2]-r[2],t[3]=e[3]-r[3],t[4]=e[4]-r[4],t[5]=e[5]-r[5],t}function T(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*r,t[5]=e[5]*r,t}function E(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t[2]=e[2]+r[2]*n,t[3]=e[3]+r[3]*n,t[4]=e[4]+r[4]*n,t[5]=e[5]+r[5]*n,t}function w(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]&&t[4]===e[4]&&t[5]===e[5]}function O(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=t[4],s=t[5],c=e[0],f=e[1],l=e[2],h=e[3],d=e[4],v=e[5];return Math.abs(r-c)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(c))&&Math.abs(i-f)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(f))&&Math.abs(o-l)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(l))&&Math.abs(a-h)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(h))&&Math.abs(u-d)<=n.EPSILON*Math.max(1,Math.abs(u),Math.abs(d))&&Math.abs(s-v)<=n.EPSILON*Math.max(1,Math.abs(s),Math.abs(v))}const R=h,P=x},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return a}),r.d(e,"clone",function(){return u}),r.d(e,"fromValues",function(){return s}),r.d(e,"fromRotationTranslationValues",function(){return c}),r.d(e,"fromRotationTranslation",function(){return f}),r.d(e,"fromTranslation",function(){return l}),r.d(e,"fromRotation",function(){return h}),r.d(e,"fromMat4",function(){return d}),r.d(e,"copy",function(){return v}),r.d(e,"identity",function(){return _}),r.d(e,"set",function(){return m}),r.d(e,"getReal",function(){return p}),r.d(e,"getDual",function(){return y}),r.d(e,"setReal",function(){return b}),r.d(e,"setDual",function(){return g}),r.d(e,"getTranslation",function(){return M}),r.d(e,"translate",function(){return x}),r.d(e,"rotateX",function(){return T}),r.d(e,"rotateY",function(){return E}),r.d(e,"rotateZ",function(){return w}),r.d(e,"rotateByQuatAppend",function(){return O}),r.d(e,"rotateByQuatPrepend",function(){return R}),r.d(e,"rotateAroundAxis",function(){return P}),r.d(e,"add",function(){return S}),r.d(e,"multiply",function(){return A}),r.d(e,"mul",function(){return N}),r.d(e,"scale",function(){return C}),r.d(e,"dot",function(){return I}),r.d(e,"lerp",function(){return L}),r.d(e,"invert",function(){return k}),r.d(e,"conjugate",function(){return F}),r.d(e,"length",function(){return D}),r.d(e,"len",function(){return j}),r.d(e,"squaredLength",function(){return B}),r.d(e,"sqrLen",function(){return U}),r.d(e,"normalize",function(){return V}),r.d(e,"str",function(){return Y}),r.d(e,"exactEquals",function(){return G}),r.d(e,"equals",function(){return q});var n=r(0),i=r(4),o=r(10);function a(){let t=new n.ARRAY_TYPE(8);return n.ARRAY_TYPE!=Float32Array&&(t[0]=0,t[1]=0,t[2]=0,t[4]=0,t[5]=0,t[6]=0,t[7]=0),t[3]=1,t}function u(t){let e=new n.ARRAY_TYPE(8);return e[0]=t[0],e[1]=t[1],e[2]=t[2],e[3]=t[3],e[4]=t[4],e[5]=t[5],e[6]=t[6],e[7]=t[7],e}function s(t,e,r,i,o,a,u,s){let c=new n.ARRAY_TYPE(8);return c[0]=t,c[1]=e,c[2]=r,c[3]=i,c[4]=o,c[5]=a,c[6]=u,c[7]=s,c}function c(t,e,r,i,o,a,u){let s=new n.ARRAY_TYPE(8);s[0]=t,s[1]=e,s[2]=r,s[3]=i;let c=.5*o,f=.5*a,l=.5*u;return s[4]=c*i+f*r-l*e,s[5]=f*i+l*t-c*r,s[6]=l*i+c*e-f*t,s[7]=-c*t-f*e-l*r,s}function f(t,e,r){let n=.5*r[0],i=.5*r[1],o=.5*r[2],a=e[0],u=e[1],s=e[2],c=e[3];return t[0]=a,t[1]=u,t[2]=s,t[3]=c,t[4]=n*c+i*s-o*u,t[5]=i*c+o*a-n*s,t[6]=o*c+n*u-i*a,t[7]=-n*a-i*u-o*s,t}function l(t,e){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t[4]=.5*e[0],t[5]=.5*e[1],t[6]=.5*e[2],t[7]=0,t}function h(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=0,t[5]=0,t[6]=0,t[7]=0,t}function d(t,e){let r=i.create();o.getRotation(r,e);let a=new n.ARRAY_TYPE(3);return o.getTranslation(a,e),f(t,r,a),t}function v(t,e){return t[0]=e[0],t[1]=e[1],t[2]=e[2],t[3]=e[3],t[4]=e[4],t[5]=e[5],t[6]=e[6],t[7]=e[7],t}function _(t){return t[0]=0,t[1]=0,t[2]=0,t[3]=1,t[4]=0,t[5]=0,t[6]=0,t[7]=0,t}function m(t,e,r,n,i,o,a,u,s){return t[0]=e,t[1]=r,t[2]=n,t[3]=i,t[4]=o,t[5]=a,t[6]=u,t[7]=s,t}const p=i.copy;function y(t,e){return t[0]=e[4],t[1]=e[5],t[2]=e[6],t[3]=e[7],t}const b=i.copy;function g(t,e){return t[4]=e[0],t[5]=e[1],t[6]=e[2],t[7]=e[3],t}function M(t,e){let r=e[4],n=e[5],i=e[6],o=e[7],a=-e[0],u=-e[1],s=-e[2],c=e[3];return t[0]=2*(r*c+o*a+n*s-i*u),t[1]=2*(n*c+o*u+i*a-r*s),t[2]=2*(i*c+o*s+r*u-n*a),t}function x(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=.5*r[0],s=.5*r[1],c=.5*r[2],f=e[4],l=e[5],h=e[6],d=e[7];return t[0]=n,t[1]=i,t[2]=o,t[3]=a,t[4]=a*u+i*c-o*s+f,t[5]=a*s+o*u-n*c+l,t[6]=a*c+n*s-i*u+h,t[7]=-n*u-i*s-o*c+d,t}function T(t,e,r){let n=-e[0],o=-e[1],a=-e[2],u=e[3],s=e[4],c=e[5],f=e[6],l=e[7],h=s*u+l*n+c*a-f*o,d=c*u+l*o+f*n-s*a,v=f*u+l*a+s*o-c*n,_=l*u-s*n-c*o-f*a;return i.rotateX(t,e,r),n=t[0],o=t[1],a=t[2],u=t[3],t[4]=h*u+_*n+d*a-v*o,t[5]=d*u+_*o+v*n-h*a,t[6]=v*u+_*a+h*o-d*n,t[7]=_*u-h*n-d*o-v*a,t}function E(t,e,r){let n=-e[0],o=-e[1],a=-e[2],u=e[3],s=e[4],c=e[5],f=e[6],l=e[7],h=s*u+l*n+c*a-f*o,d=c*u+l*o+f*n-s*a,v=f*u+l*a+s*o-c*n,_=l*u-s*n-c*o-f*a;return i.rotateY(t,e,r),n=t[0],o=t[1],a=t[2],u=t[3],t[4]=h*u+_*n+d*a-v*o,t[5]=d*u+_*o+v*n-h*a,t[6]=v*u+_*a+h*o-d*n,t[7]=_*u-h*n-d*o-v*a,t}function w(t,e,r){let n=-e[0],o=-e[1],a=-e[2],u=e[3],s=e[4],c=e[5],f=e[6],l=e[7],h=s*u+l*n+c*a-f*o,d=c*u+l*o+f*n-s*a,v=f*u+l*a+s*o-c*n,_=l*u-s*n-c*o-f*a;return i.rotateZ(t,e,r),n=t[0],o=t[1],a=t[2],u=t[3],t[4]=h*u+_*n+d*a-v*o,t[5]=d*u+_*o+v*n-h*a,t[6]=v*u+_*a+h*o-d*n,t[7]=_*u-h*n-d*o-v*a,t}function O(t,e,r){let n=r[0],i=r[1],o=r[2],a=r[3],u=e[0],s=e[1],c=e[2],f=e[3];return t[0]=u*a+f*n+s*o-c*i,t[1]=s*a+f*i+c*n-u*o,t[2]=c*a+f*o+u*i-s*n,t[3]=f*a-u*n-s*i-c*o,u=e[4],s=e[5],c=e[6],f=e[7],t[4]=u*a+f*n+s*o-c*i,t[5]=s*a+f*i+c*n-u*o,t[6]=c*a+f*o+u*i-s*n,t[7]=f*a-u*n-s*i-c*o,t}function R(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=r[0],s=r[1],c=r[2],f=r[3];return t[0]=n*f+a*u+i*c-o*s,t[1]=i*f+a*s+o*u-n*c,t[2]=o*f+a*c+n*s-i*u,t[3]=a*f-n*u-i*s-o*c,u=r[4],s=r[5],c=r[6],f=r[7],t[4]=n*f+a*u+i*c-o*s,t[5]=i*f+a*s+o*u-n*c,t[6]=o*f+a*c+n*s-i*u,t[7]=a*f-n*u-i*s-o*c,t}function P(t,e,r,i){if(Math.abs(i)<n.EPSILON)return v(t,e);let o=Math.sqrt(r[0]*r[0]+r[1]*r[1]+r[2]*r[2]);i*=.5;let a=Math.sin(i),u=a*r[0]/o,s=a*r[1]/o,c=a*r[2]/o,f=Math.cos(i),l=e[0],h=e[1],d=e[2],_=e[3];t[0]=l*f+_*u+h*c-d*s,t[1]=h*f+_*s+d*u-l*c,t[2]=d*f+_*c+l*s-h*u,t[3]=_*f-l*u-h*s-d*c;let m=e[4],p=e[5],y=e[6],b=e[7];return t[4]=m*f+b*u+p*c-y*s,t[5]=p*f+b*s+y*u-m*c,t[6]=y*f+b*c+m*s-p*u,t[7]=b*f-m*u-p*s-y*c,t}function S(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t[2]=e[2]+r[2],t[3]=e[3]+r[3],t[4]=e[4]+r[4],t[5]=e[5]+r[5],t[6]=e[6]+r[6],t[7]=e[7]+r[7],t}function A(t,e,r){let n=e[0],i=e[1],o=e[2],a=e[3],u=r[4],s=r[5],c=r[6],f=r[7],l=e[4],h=e[5],d=e[6],v=e[7],_=r[0],m=r[1],p=r[2],y=r[3];return t[0]=n*y+a*_+i*p-o*m,t[1]=i*y+a*m+o*_-n*p,t[2]=o*y+a*p+n*m-i*_,t[3]=a*y-n*_-i*m-o*p,t[4]=n*f+a*u+i*c-o*s+l*y+v*_+h*p-d*m,t[5]=i*f+a*s+o*u-n*c+h*y+v*m+d*_-l*p,t[6]=o*f+a*c+n*s-i*u+d*y+v*p+l*m-h*_,t[7]=a*f-n*u-i*s-o*c+v*y-l*_-h*m-d*p,t}const N=A;function C(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t[2]=e[2]*r,t[3]=e[3]*r,t[4]=e[4]*r,t[5]=e[5]*r,t[6]=e[6]*r,t[7]=e[7]*r,t}const I=i.dot;function L(t,e,r,n){let i=1-n;return I(e,r)<0&&(n=-n),t[0]=e[0]*i+r[0]*n,t[1]=e[1]*i+r[1]*n,t[2]=e[2]*i+r[2]*n,t[3]=e[3]*i+r[3]*n,t[4]=e[4]*i+r[4]*n,t[5]=e[5]*i+r[5]*n,t[6]=e[6]*i+r[6]*n,t[7]=e[7]*i+r[7]*n,t}function k(t,e){let r=B(e);return t[0]=-e[0]/r,t[1]=-e[1]/r,t[2]=-e[2]/r,t[3]=e[3]/r,t[4]=-e[4]/r,t[5]=-e[5]/r,t[6]=-e[6]/r,t[7]=e[7]/r,t}function F(t,e){return t[0]=-e[0],t[1]=-e[1],t[2]=-e[2],t[3]=e[3],t[4]=-e[4],t[5]=-e[5],t[6]=-e[6],t[7]=e[7],t}const D=i.length,j=D,B=i.squaredLength,U=B;function V(t,e){let r=B(e);if(r>0){r=Math.sqrt(r);let n=e[0]/r,i=e[1]/r,o=e[2]/r,a=e[3]/r,u=e[4],s=e[5],c=e[6],f=e[7],l=n*u+i*s+o*c+a*f;t[0]=n,t[1]=i,t[2]=o,t[3]=a,t[4]=(u-n*l)/r,t[5]=(s-i*l)/r,t[6]=(c-o*l)/r,t[7]=(f-a*l)/r}return t}function Y(t){return"quat2("+t[0]+", "+t[1]+", "+t[2]+", "+t[3]+", "+t[4]+", "+t[5]+", "+t[6]+", "+t[7]+")"}function G(t,e){return t[0]===e[0]&&t[1]===e[1]&&t[2]===e[2]&&t[3]===e[3]&&t[4]===e[4]&&t[5]===e[5]&&t[6]===e[6]&&t[7]===e[7]}function q(t,e){let r=t[0],i=t[1],o=t[2],a=t[3],u=t[4],s=t[5],c=t[6],f=t[7],l=e[0],h=e[1],d=e[2],v=e[3],_=e[4],m=e[5],p=e[6],y=e[7];return Math.abs(r-l)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(l))&&Math.abs(i-h)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(h))&&Math.abs(o-d)<=n.EPSILON*Math.max(1,Math.abs(o),Math.abs(d))&&Math.abs(a-v)<=n.EPSILON*Math.max(1,Math.abs(a),Math.abs(v))&&Math.abs(u-_)<=n.EPSILON*Math.max(1,Math.abs(u),Math.abs(_))&&Math.abs(s-m)<=n.EPSILON*Math.max(1,Math.abs(s),Math.abs(m))&&Math.abs(c-p)<=n.EPSILON*Math.max(1,Math.abs(c),Math.abs(p))&&Math.abs(f-y)<=n.EPSILON*Math.max(1,Math.abs(f),Math.abs(y))}},function(t,e,r){"use strict";r.r(e),r.d(e,"create",function(){return i}),r.d(e,"clone",function(){return o}),r.d(e,"fromValues",function(){return a}),r.d(e,"copy",function(){return u}),r.d(e,"set",function(){return s}),r.d(e,"add",function(){return c}),r.d(e,"subtract",function(){return f}),r.d(e,"multiply",function(){return l}),r.d(e,"divide",function(){return h}),r.d(e,"ceil",function(){return d}),r.d(e,"floor",function(){return v}),r.d(e,"min",function(){return _}),r.d(e,"max",function(){return m}),r.d(e,"round",function(){return p}),r.d(e,"scale",function(){return y}),r.d(e,"scaleAndAdd",function(){return b}),r.d(e,"distance",function(){return g}),r.d(e,"squaredDistance",function(){return M}),r.d(e,"length",function(){return x}),r.d(e,"squaredLength",function(){return T}),r.d(e,"negate",function(){return E}),r.d(e,"inverse",function(){return w}),r.d(e,"normalize",function(){return O}),r.d(e,"dot",function(){return R}),r.d(e,"cross",function(){return P}),r.d(e,"lerp",function(){return S}),r.d(e,"random",function(){return A}),r.d(e,"transformMat2",function(){return N}),r.d(e,"transformMat2d",function(){return C}),r.d(e,"transformMat3",function(){return I}),r.d(e,"transformMat4",function(){return L}),r.d(e,"rotate",function(){return k}),r.d(e,"angle",function(){return F}),r.d(e,"str",function(){return D}),r.d(e,"exactEquals",function(){return j}),r.d(e,"equals",function(){return B}),r.d(e,"len",function(){return U}),r.d(e,"sub",function(){return V}),r.d(e,"mul",function(){return Y}),r.d(e,"div",function(){return G}),r.d(e,"dist",function(){return q}),r.d(e,"sqrDist",function(){return H}),r.d(e,"sqrLen",function(){return X}),r.d(e,"forEach",function(){return W});var n=r(0);function i(){let t=new n.ARRAY_TYPE(2);return n.ARRAY_TYPE!=Float32Array&&(t[0]=0,t[1]=0),t}function o(t){let e=new n.ARRAY_TYPE(2);return e[0]=t[0],e[1]=t[1],e}function a(t,e){let r=new n.ARRAY_TYPE(2);return r[0]=t,r[1]=e,r}function u(t,e){return t[0]=e[0],t[1]=e[1],t}function s(t,e,r){return t[0]=e,t[1]=r,t}function c(t,e,r){return t[0]=e[0]+r[0],t[1]=e[1]+r[1],t}function f(t,e,r){return t[0]=e[0]-r[0],t[1]=e[1]-r[1],t}function l(t,e,r){return t[0]=e[0]*r[0],t[1]=e[1]*r[1],t}function h(t,e,r){return t[0]=e[0]/r[0],t[1]=e[1]/r[1],t}function d(t,e){return t[0]=Math.ceil(e[0]),t[1]=Math.ceil(e[1]),t}function v(t,e){return t[0]=Math.floor(e[0]),t[1]=Math.floor(e[1]),t}function _(t,e,r){return t[0]=Math.min(e[0],r[0]),t[1]=Math.min(e[1],r[1]),t}function m(t,e,r){return t[0]=Math.max(e[0],r[0]),t[1]=Math.max(e[1],r[1]),t}function p(t,e){return t[0]=Math.round(e[0]),t[1]=Math.round(e[1]),t}function y(t,e,r){return t[0]=e[0]*r,t[1]=e[1]*r,t}function b(t,e,r,n){return t[0]=e[0]+r[0]*n,t[1]=e[1]+r[1]*n,t}function g(t,e){var r=e[0]-t[0],n=e[1]-t[1];return Math.sqrt(r*r+n*n)}function M(t,e){var r=e[0]-t[0],n=e[1]-t[1];return r*r+n*n}function x(t){var e=t[0],r=t[1];return Math.sqrt(e*e+r*r)}function T(t){var e=t[0],r=t[1];return e*e+r*r}function E(t,e){return t[0]=-e[0],t[1]=-e[1],t}function w(t,e){return t[0]=1/e[0],t[1]=1/e[1],t}function O(t,e){var r=e[0],n=e[1],i=r*r+n*n;return i>0&&(i=1/Math.sqrt(i),t[0]=e[0]*i,t[1]=e[1]*i),t}function R(t,e){return t[0]*e[0]+t[1]*e[1]}function P(t,e,r){var n=e[0]*r[1]-e[1]*r[0];return t[0]=t[1]=0,t[2]=n,t}function S(t,e,r,n){var i=e[0],o=e[1];return t[0]=i+n*(r[0]-i),t[1]=o+n*(r[1]-o),t}function A(t,e){e=e||1;var r=2*n.RANDOM()*Math.PI;return t[0]=Math.cos(r)*e,t[1]=Math.sin(r)*e,t}function N(t,e,r){var n=e[0],i=e[1];return t[0]=r[0]*n+r[2]*i,t[1]=r[1]*n+r[3]*i,t}function C(t,e,r){var n=e[0],i=e[1];return t[0]=r[0]*n+r[2]*i+r[4],t[1]=r[1]*n+r[3]*i+r[5],t}function I(t,e,r){var n=e[0],i=e[1];return t[0]=r[0]*n+r[3]*i+r[6],t[1]=r[1]*n+r[4]*i+r[7],t}function L(t,e,r){let n=e[0],i=e[1];return t[0]=r[0]*n+r[4]*i+r[12],t[1]=r[1]*n+r[5]*i+r[13],t}function k(t,e,r,n){let i=e[0]-r[0],o=e[1]-r[1],a=Math.sin(n),u=Math.cos(n);return t[0]=i*u-o*a+r[0],t[1]=i*a+o*u+r[1],t}function F(t,e){let r=t[0],n=t[1],i=e[0],o=e[1],a=r*r+n*n;a>0&&(a=1/Math.sqrt(a));let u=i*i+o*o;u>0&&(u=1/Math.sqrt(u));let s=(r*i+n*o)*a*u;return s>1?0:s<-1?Math.PI:Math.acos(s)}function D(t){return"vec2("+t[0]+", "+t[1]+")"}function j(t,e){return t[0]===e[0]&&t[1]===e[1]}function B(t,e){let r=t[0],i=t[1],o=e[0],a=e[1];return Math.abs(r-o)<=n.EPSILON*Math.max(1,Math.abs(r),Math.abs(o))&&Math.abs(i-a)<=n.EPSILON*Math.max(1,Math.abs(i),Math.abs(a))}const U=x,V=f,Y=l,G=h,q=g,H=M,X=T,W=function(){let t=i();return function(e,r,n,i,o,a){let u,s;for(r||(r=2),n||(n=0),s=i?Math.min(i*r+n,e.length):e.length,u=n;u<s;u+=r)t[0]=e[u],t[1]=e[u+1],o(t,t,a),e[u]=t[0],e[u+1]=t[1];return e}}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}();e.Program=function(){function t(e,r,n,i,o){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this._gl=e,this.program=e.createProgram(),this.attrib=null,this.uniform=null,this.defines={},this._firstUse=!0,this._nextUseCallbacks=[];var a="";if(o)for(var u in o)this.defines[u]=o[u],a+="#define "+u+" "+o[u]+"\n";if(this._vertShader=e.createShader(e.VERTEX_SHADER),e.attachShader(this.program,this._vertShader),e.shaderSource(this._vertShader,a+r),e.compileShader(this._vertShader),this._fragShader=e.createShader(e.FRAGMENT_SHADER),e.attachShader(this.program,this._fragShader),e.shaderSource(this._fragShader,a+n),e.compileShader(this._fragShader),i)for(var s in this.attrib={},i)e.bindAttribLocation(this.program,i[s],s),this.attrib[s]=i[s];e.linkProgram(this.program)}return n(t,[{key:"onNextUse",value:function(t){this._nextUseCallbacks.push(t)}},{key:"use",value:function(){var t=this._gl;if(this._firstUse){if(this._firstUse=!1,t.getProgramParameter(this.program,t.LINK_STATUS)){if(!this.attrib){this.attrib={};for(var e=t.getProgramParameter(this.program,t.ACTIVE_ATTRIBUTES),r=0;r<e;r++){var n=t.getActiveAttrib(this.program,r);this.attrib[n.name]=t.getAttribLocation(this.program,n.name)}}this.uniform={};for(var i=t.getProgramParameter(this.program,t.ACTIVE_UNIFORMS),o="",a=0;a<i;a++){o=t.getActiveUniform(this.program,a).name.replace("[0]",""),this.uniform[o]=t.getUniformLocation(this.program,o)}}else t.getShaderParameter(this._vertShader,t.COMPILE_STATUS)?t.getShaderParameter(this._fragShader,t.COMPILE_STATUS)?console.error("Program link error: "+t.getProgramInfoLog(this.program)):console.error("Fragment shader compile error: "+t.getShaderInfoLog(this._fragShader)):console.error("Vertex shader compile error: "+t.getShaderInfoLog(this._vertShader)),t.deleteProgram(this.program),this.program=null;t.deleteShader(this._vertShader),t.deleteShader(this._fragShader)}if(t.useProgram(this.program),this._nextUseCallbacks.length){var u=!0,s=!1,c=void 0;try{for(var f,l=this._nextUseCallbacks[Symbol.iterator]();!(u=(f=l.next()).done);u=!0){(0,f.value)(this)}}catch(t){s=!0,c=t}finally{try{!u&&l.return&&l.return()}finally{if(s)throw c}}this._nextUseCallbacks=[]}}}]),t}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.BoundsRenderer=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(7);function u(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function s(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var f=WebGLRenderingContext,l=function(t){function e(){u(this,e);var t=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.state.blend=!0,t.state.blendFuncSrc=f.SRC_ALPHA,t.state.blendFuncDst=f.ONE,t.state.depthTest=!1,t}return c(e,i.Material),n(e,[{key:"materialName",get:function(){return"BOUNDS_RENDERER"}},{key:"vertexSource",get:function(){return"\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return"\n    precision mediump float;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 1.0, 0.0, 0.3);\n    }"}}]),e}();e.BoundsRenderer=function(t){function e(){u(this,e);var t=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._stageBounds=null,t}return c(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){this.stageBounds=this._stageBounds}},{key:"stageBounds",get:function(){return this._stageBounds},set:function(t){if(this._stageBounds&&this.clearRenderPrimitives(),this._stageBounds=t,t&&0!==t.length&&this._renderer){for(var e=[],r=[],n=t.geometry.length,i=0;i<n;i++){var o=t.geometry[i];e.push(o.x,0,o.z),r.push(i,0===i?n-1:i-1,n)}e.push(0,0,0);var u=this._renderer.createRenderBuffer(f.ARRAY_BUFFER,new Float32Array(e)),s=this._renderer.createRenderBuffer(f.ELEMENT_ARRAY_BUFFER,new Uint16Array(r)),c=[new a.PrimitiveAttribute("POSITION",u,3,f.FLOAT,12,0)],h=new a.Primitive(c,r.length);h.setIndexBuffer(s);var d=this._renderer.createRenderPrimitive(h,new l);this.addRenderPrimitive(d)}}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.ButtonNode=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(9);function u(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function s(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var f=function(t){function e(){u(this,e);var t=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.state.blend=!0,t.defineUniform("hoverAmount",0),t}return c(e,i.Material),n(e,[{key:"materialName",get:function(){return"BUTTON_MATERIAL"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n\n    uniform float hoverAmount;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      float scale = mix(1.0, 1.1, hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }"}},{key:"fragmentSource",get:function(){return"\n    uniform float hoverAmount;\n\n    const vec4 default_color = vec4(0.75, 0.75, 0.75, 0.85);\n    const vec4 hover_color = vec4(0.9, 0.9,\n                                  0.9, 1);\n\n    vec4 fragment_main() {\n      return mix(default_color, hover_color, hoverAmount);\n    }"}}]),e}(),l=function(t){function e(){u(this,e);var t=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.state.blend=!0,t.defineUniform("hoverAmount",0),t.icon=t.defineSampler("icon"),t}return c(e,i.Material),n(e,[{key:"materialName",get:function(){return"BUTTON_ICON_MATERIAL"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    uniform float hoverAmount;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      float scale = mix(1.0, 1.1, hoverAmount);\n      vec4 pos = vec4(POSITION.x * scale, POSITION.y * scale, POSITION.z * (scale + (hoverAmount * 0.2)), 1.0);\n      return proj * view * model * pos;\n    }"}},{key:"fragmentSource",get:function(){return"\n    uniform sampler2D icon;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(icon, vTexCoord);\n    }"}}]),e}();e.ButtonNode=function(t){function e(t,r){u(this,e);var n=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return n.selectable=!0,n._selectHandler=r,n._iconTexture=t,n._hovered=!1,n._hoverT=0,n}return c(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){var e=new a.PrimitiveStream,r=.0025,n=.05,i=n-.025;e.startGeometry();for(var o=0;o<32;++o){var u=o*(2*Math.PI/32),s=.025*Math.cos(u),c=.025*Math.sin(u);switch(Math.floor(o/8)){case 0:s+=i,c+=i;break;case 1:s-=i,c+=i;break;case 2:s-=i,c-=i;break;case 3:s+=i,c-=i}e.pushVertex(s,c,-r,0,0,0,0,1),o>1&&e.pushTriangle(0,o-1,o)}e.endGeometry();var h=e.finishPrimitive(t);this._buttonRenderPrimitive=t.createRenderPrimitive(h,new f),this.addRenderPrimitive(this._buttonRenderPrimitive),n=.035,e.clear(),e.startGeometry(),e.pushVertex(-n,n,r,0,0,0,0,1),e.pushVertex(-n,-n,r,0,1,0,0,1),e.pushVertex(n,-n,r,1,1,0,0,1),e.pushVertex(n,n,r,1,0,0,0,1),e.pushTriangle(0,1,2),e.pushTriangle(0,2,3),e.endGeometry();var d=e.finishPrimitive(t),v=new l;v.icon.texture=this._iconTexture,this._iconRenderPrimitive=t.createRenderPrimitive(d,v),this.addRenderPrimitive(this._iconRenderPrimitive)}},{key:"onHoverStart",value:function(){this._hovered=!0}},{key:"onHoverEnd",value:function(){this._hovered=!1}},{key:"_updateHoverState",value:function(){var t=this._hoverT/200,e=t<.5?4*t*t*t:(t-1)*(2*t-2)*(2*t-2)+1;this._buttonRenderPrimitive.uniforms.hoverAmount.value=e,this._iconRenderPrimitive.uniforms.hoverAmount.value=e}},{key:"onUpdate",value:function(t,e){this._hovered&&this._hoverT<200?(this._hoverT=Math.min(200,this._hoverT+e),this._updateHoverState()):!this._hovered&&this._hoverT>0&&(this._hoverT=Math.max(0,this._hoverT-e),this._updateHoverState())}},{key:"iconTexture",get:function(){return this._iconTexture},set:function(t){this._iconTexture!=t&&(this._iconTexture=t,this._iconRenderPrimitive.samplers.icon.texture=t)}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.DropShadowNode=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(9);function u(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function s(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function c(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var f=WebGLRenderingContext,l=function(t){function e(){u(this,e);var t=s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.state.blend=!0,t.state.blendFuncSrc=f.ONE,t.state.blendFuncDst=f.ONE_MINUS_SRC_ALPHA,t.state.depthFunc=f.LEQUAL,t.state.depthMask=!1,t}return c(e,i.Material),n(e,[{key:"materialName",get:function(){return"DROP_SHADOW_MATERIAL"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying float vShadow;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vShadow = TEXCOORD_0.x;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return"\n    varying float vShadow;\n\n    vec4 fragment_main() {\n      return vec4(0.0, 0.0, 0.0, vShadow);\n    }"}}]),e}();e.DropShadowNode=function(t){function e(t,r){return u(this,e),s(this,(e.__proto__||Object.getPrototypeOf(e)).call(this))}return c(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){var e=new a.PrimitiveStream;e.startGeometry(),e.pushVertex(0,.01,0,.7);for(var r=2*Math.PI/32,n=void 0,i=0;i<32;++i){n=e.nextVertexIndex;var o=i*r,u=Math.cos(o),s=Math.sin(o);e.pushVertex(.6*u,.01,.6*s,.3),e.pushVertex(1*u,.01,1*s,0),i>0&&(e.pushTriangle(0,n,n-2),e.pushTriangle(n,n+1,n-1),e.pushTriangle(n,n-1,n-2))}e.pushTriangle(0,1,n),e.pushTriangle(1,2,n+1),e.pushTriangle(1,n+1,n),e.endGeometry();var c=e.finishPrimitive(t);this._shadowRenderPrimitive=t.createRenderPrimitive(c,new l),this.addRenderPrimitive(this._shadowRenderPrimitive)}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.CubeSeaNode=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(8),u=r(13),s=r(6);function c(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function f(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function l(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var h=function(t){function e(){var t=arguments.length>0&&void 0!==arguments[0]&&arguments[0];c(this,e);var r=f(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r.heavy=t,r.baseColor=r.defineSampler("baseColor"),r}return l(e,i.Material),n(e,[{key:"materialName",get:function(){return"CUBE_SEA"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    attribute vec3 NORMAL;\n\n    varying vec2 vTexCoord;\n    varying vec3 vLight;\n\n    const vec3 lightDir = vec3(0.75, 0.5, 1.0);\n    const vec3 ambientColor = vec3(0.5, 0.5, 0.5);\n    const vec3 lightColor = vec3(0.75, 0.75, 0.75);\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec3 normalRotated = vec3(model * vec4(NORMAL, 0.0));\n      float lightFactor = max(dot(normalize(lightDir), normalRotated), 0.0);\n      vLight = ambientColor + (lightColor * lightFactor);\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return this.heavy?"\n      precision mediump float;\n\n      uniform sampler2D diffuse;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec2 dimensions = vec2(64, 64);\n      float seed = 0.42;\n\n      vec2 hash( vec2 p ) {\n        p=vec2(dot(p,vec2(127.1,311.7)),dot(p,vec2(269.5,183.3)));\n        return fract(sin(p)*18.5453);\n      }\n\n      vec3 hash3( vec2 p ) {\n          vec3 q = vec3( dot(p,vec2(127.1,311.7)),\n                 dot(p,vec2(269.5,183.3)),\n                 dot(p,vec2(419.2,371.9)) );\n        return fract(sin(q)*43758.5453);\n      }\n\n      float iqnoise( in vec2 x, float u, float v ) {\n        vec2 p = floor(x);\n        vec2 f = fract(x);\n        float k = 1.0+63.0*pow(1.0-v,4.0);\n        float va = 0.0;\n        float wt = 0.0;\n        for( int j=-2; j<=2; j++ )\n          for( int i=-2; i<=2; i++ ) {\n            vec2 g = vec2( float(i),float(j) );\n            vec3 o = hash3( p + g )*vec3(u,u,1.0);\n            vec2 r = g - f + o.xy;\n            float d = dot(r,r);\n            float ww = pow( 1.0-smoothstep(0.0,1.414,sqrt(d)), k );\n            va += o.z*ww;\n            wt += ww;\n          }\n        return va/wt;\n      }\n\n      // return distance, and cell id\n      vec2 voronoi( in vec2 x ) {\n        vec2 n = floor( x );\n        vec2 f = fract( x );\n        vec3 m = vec3( 8.0 );\n        for( int j=-1; j<=1; j++ )\n          for( int i=-1; i<=1; i++ ) {\n            vec2  g = vec2( float(i), float(j) );\n            vec2  o = hash( n + g );\n            vec2  r = g - f + (0.5+0.5*sin(seed+6.2831*o));\n            float d = dot( r, r );\n            if( d<m.x )\n              m = vec3( d, o );\n          }\n        return vec2( sqrt(m.x), m.y+m.z );\n      }\n\n      vec4 fragment_main() {\n        vec2 uv = ( vTexCoord );\n        uv *= vec2( 10., 10. );\n        uv += seed;\n        vec2 p = 0.5 - 0.5*sin( 0.*vec2(1.01,1.71) );\n\n        vec2 c = voronoi( uv );\n        vec3 col = vec3( c.y / 2. );\n\n        float f = iqnoise( 1. * uv + c.y, p.x, p.y );\n        col *= 1.0 + .25 * vec3( f );\n\n        return vec4(vLight, 1.0) * texture2D(diffuse, vTexCoord) * vec4( col, 1. );\n      }":"\n      precision mediump float;\n      uniform sampler2D baseColor;\n      varying vec2 vTexCoord;\n      varying vec3 vLight;\n\n      vec4 fragment_main() {\n        return vec4(vLight, 1.0) * texture2D(baseColor, vTexCoord);\n      }"}}]),e}();e.CubeSeaNode=function(t){function e(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};c(this,e);var r=f(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r.heavyGpu=!!t.heavyGpu,r.cubeCount=t.cubeCount||(r.heavyGpu?12:10),r.cubeScale=t.cubeScale||1,r.halfOnly=!!t.halfOnly,r.autoRotate=!!t.autoRotate,r._texture=new a.UrlTexture(t.imageUrl||"media/textures/cube-sea.png"),r._material=new h(r.heavyGpu),r._material.baseColor.texture=r._texture,r._renderPrimitive=null,r}return l(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){this._renderPrimitive=null;var e=new u.BoxBuilder;e.pushCube([0,.25,-.8],.1),e.pushCube([.8,.25,0],.1),e.pushCube([0,.25,.8],.1),e.pushCube([-.8,.25,0],.1);var r=e.finishPrimitive(t);return this.heroNode=t.createMesh(r,this._material),this.rebuildCubes(e),this.cubeSeaNode=new o.Node,this.cubeSeaNode.addRenderPrimitive(this._renderPrimitive),this.addNode(this.cubeSeaNode),this.addNode(this.heroNode),this.waitForComplete()}},{key:"rebuildCubes",value:function(t){if(this._renderer){t?t.clear():t=new u.BoxBuilder;for(var e=.4*this.cubeScale,r=.5*this.cubeCount,n=0;n<this.cubeCount;++n)for(var i=0;i<this.cubeCount;++i)for(var o=0;o<this.cubeCount;++o){var a=[n-r,i-r,o-r];this.halfOnly&&a[0]<0||(0==a[0]&&0==a[1]&&0==a[2]||t.pushCube(a,e))}this.cubeCount>12&&(t.indexType=5125);var s=t.finishPrimitive(this._renderer);this._renderPrimitive?this._renderPrimitive.setPrimitive(s):this._renderPrimitive=this._renderer.createRenderPrimitive(s,this._material)}}},{key:"onUpdate",value:function(t,e){this.autoRotate&&s.mat4.fromRotation(this.cubeSeaNode.matrix,t/500,[0,-1,0]),s.mat4.fromRotation(this.heroNode.matrix,t/2e3,[0,1,0])}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Gltf2Node=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(2),o=r(27);var a=new WeakMap;e.Gltf2Node=function(t){function e(t){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,e);var r=function(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r._url=t.url,r._promise=null,r._resolver=null,r._rejecter=null,r}return function(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}(e,i.Node),n(e,[{key:"onRendererChanged",value:function(t){var e=this,r=a.get(t);r||(r=new o.Gltf2Loader(t),a.set(t,r)),!this._resolver&&this._promise&&(this._promise=null),this._ensurePromise(),r.loadFromUrl(this._url).then(function(t){e.addNode(t),e._resolver(t.waitForComplete()),e._resolver=null,e._rejecter=null}).catch(function(t){e._rejecter(t),e._resolver=null,e._rejecter=null})}},{key:"_ensurePromise",value:function(){var t=this;return this._promise||(this._promise=new Promise(function(e,r){t._resolver=e,t._rejecter=r})),this._promise}},{key:"waitForComplete",value:function(){return this._ensurePromise()}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Gltf2Loader=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(14),o=r(2),a=r(7),u=r(8);function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var c=WebGLRenderingContext,f=1313821514,l=5130562;function h(t){return!!t.match(/^data:/)}function d(t,e){return function(t){var e=new RegExp("^"+window.location.protocol,"i");return!!t.match(e)}(t)||h(t)?t:e+t}function v(t){switch(t){case"SCALAR":return 1;case"VEC2":return 2;case"VEC3":return 3;case"VEC4":return 4;default:return 0}}e.Gltf2Loader=function(){function t(e){s(this,t),this.renderer=e,this._gl=e._gl}return n(t,[{key:"loadFromUrl",value:function(t){var e=this;return fetch(t).then(function(r){var n=t.lastIndexOf("/"),i=0!==n?t.substring(0,n+1):"";if(t.endsWith(".gltf"))return r.json().then(function(t){return e.loadFromJson(t,i)});if(t.endsWith(".glb"))return r.arrayBuffer().then(function(t){return e.loadFromBinary(t,i)});throw new Error("Unrecognized file extension")})}},{key:"loadFromBinary",value:function(t,e){var r=new DataView(t,0,12),n=r.getUint32(0,!0),i=r.getUint32(4,!0),o=r.getUint32(8,!0);if(1179937895!=n)throw new Error("Invalid magic string in binary header.");if(2!=i)throw new Error("Incompatible version in binary header.");for(var a={},u=12;u<o;){var s=new DataView(t,u,8),c=s.getUint32(0,!0);a[s.getUint32(4,!0)]=t.slice(u+8,u+8+c),u+=c+8}if(!a[f])throw new Error("File contained no json chunk.");var h=new TextDecoder("utf-8").decode(a[f]),d=JSON.parse(h);return this.loadFromJson(d,e,a[l])}},{key:"loadFromJson",value:function(t,e,r){if(!t.asset)throw new Error("Missing asset description.");if("2.0"!=t.asset.minVersion&&"2.0"!=t.asset.version)throw new Error("Incompatible asset version.");var n=[];if(r)n[0]=new p({},e,r);else{var s=!0,f=!1,l=void 0;try{for(var h,d=t.buffers[Symbol.iterator]();!(s=(h=d.next()).done);s=!0){var y=h.value;n.push(new p(y,e))}}catch(t){f=!0,l=t}finally{try{!s&&d.return&&d.return()}finally{if(f)throw l}}}var b=[],g=!0,M=!1,x=void 0;try{for(var T,E=t.bufferViews[Symbol.iterator]();!(g=(T=E.next()).done);g=!0){var w=T.value;b.push(new m(w,n))}}catch(t){M=!0,x=t}finally{try{!g&&E.return&&E.return()}finally{if(M)throw x}}var O=[];if(t.images){var R=!0,P=!1,S=void 0;try{for(var A,N=t.images[Symbol.iterator]();!(R=(A=N.next()).done);R=!0){var C=A.value;O.push(new p(C,e))}}catch(t){P=!0,S=t}finally{try{!R&&N.return&&N.return()}finally{if(P)throw S}}}var I=[];if(t.textures){var L=!0,k=!1,F=void 0;try{for(var D,j=t.textures[Symbol.iterator]();!(L=(D=j.next()).done);L=!0){var B=D.value,U=O[B.source].texture(b);if(B.sampler){var V=V[B.sampler];U.sampler.minFilter=V.minFilter,U.sampler.magFilter=V.magFilter,U.sampler.wrapS=V.wrapS,U.sampler.wrapT=V.wrapT}I.push(U)}}catch(t){k=!0,F=t}finally{try{!L&&j.return&&j.return()}finally{if(k)throw F}}}function Y(t){return t?I[t.index]:null}var G=[];if(t.materials){var q=!0,H=!1,X=void 0;try{for(var W,K=t.materials[Symbol.iterator]();!(q=(W=K.next()).done);q=!0){var z=W.value,Q=new i.PbrMaterial,J=z.pbrMetallicRoughness||{};switch(Q.baseColorFactor.value=J.baseColorFactor||[1,1,1,1],Q.baseColor.texture=Y(J.baseColorTexture),Q.metallicRoughnessFactor.value=[J.metallicFactor||1,J.roughnessFactor||1],Q.metallicRoughness.texture=Y(J.metallicRoughnessTexture),Q.normal.texture=Y(t.normalTexture),Q.occlusion.texture=Y(t.occlusionTexture),Q.occlusionStrength.value=t.occlusionTexture&&t.occlusionTexture.strength?t.occlusionTexture.strength:1,Q.emissiveFactor.value=z.emissiveFactor||[0,0,0],Q.emissive.texture=Y(t.emissiveTexture),!Q.emissive.texture&&t.emissiveFactor&&(Q.emissive.texture=new u.ColorTexture(1,1,1,1)),z.alphaMode){case"BLEND":case"MASK":Q.state.blend=!0;break;default:Q.state.blend=!1}Q.state.cullFace=!z.doubleSided,G.push(Q)}}catch(t){H=!0,X=t}finally{try{!q&&K.return&&K.return()}finally{if(H)throw X}}}var Z=t.accessors,$=[],tt=!0,et=!1,rt=void 0;try{for(var nt,it=t.meshes[Symbol.iterator]();!(tt=(nt=it.next()).done);tt=!0){var ot=nt.value,at=new _;$.push(at);var ut=!0,st=!1,ct=void 0;try{for(var ft,lt=ot.primitives[Symbol.iterator]();!(ut=(ft=lt.next()).done);ut=!0){var ht=ft.value,dt=null;dt="material"in ht?G[ht.material]:new i.PbrMaterial;var vt=[],_t=0,mt=null,pt=null;for(var yt in ht.attributes){var bt=Z[ht.attributes[yt]],gt=b[bt.bufferView];_t=bt.count;var Mt=new a.PrimitiveAttribute(yt,gt.renderBuffer(this.renderer,c.ARRAY_BUFFER),v(bt.type),bt.componentType,gt.byteStride||0,bt.byteOffset||0);Mt.normalized=bt.normalized||!1,"POSITION"==yt&&(mt=bt.min,pt=bt.max),vt.push(Mt)}var xt=new a.Primitive(vt,_t,ht.mode);if("indices"in ht){var Tt=Z[ht.indices],Et=b[Tt.bufferView];xt.setIndexBuffer(Et.renderBuffer(this.renderer,c.ELEMENT_ARRAY_BUFFER),Tt.byteOffset||0,Tt.componentType),xt.indexType=Tt.componentType,xt.indexByteOffset=Tt.byteOffset||0,xt.elementCount=Tt.count}mt&&pt&&xt.setBounds(mt,pt),at.primitives.push(this.renderer.createRenderPrimitive(xt,dt))}}catch(t){st=!0,ct=t}finally{try{!ut&&lt.return&&lt.return()}finally{if(st)throw ct}}}}catch(t){et=!0,rt=t}finally{try{!tt&&it.return&&it.return()}finally{if(et)throw rt}}var wt=new o.Node,Ot=t.scenes[t.scene],Rt=!0,Pt=!1,St=void 0;try{for(var At,Nt=Ot.nodes[Symbol.iterator]();!(Rt=(At=Nt.next()).done);Rt=!0){var Ct=At.value,It=t.nodes[Ct];wt.addNode(this.processNodes(It,t.nodes,$))}}catch(t){Pt=!0,St=t}finally{try{!Rt&&Nt.return&&Nt.return()}finally{if(Pt)throw St}}return wt}},{key:"processNodes",value:function(t,e,r){var n=new o.Node;if(n.name=t.name,"mesh"in t){var i=r[t.mesh],a=!0,u=!1,s=void 0;try{for(var c,f=i.primitives[Symbol.iterator]();!(a=(c=f.next()).done);a=!0){var l=c.value;n.addRenderPrimitive(l)}}catch(t){u=!0,s=t}finally{try{!a&&f.return&&f.return()}finally{if(u)throw s}}}if(t.matrix?n.matrix=new Float32Array(t.matrix):(t.translation||t.rotation||t.scale)&&(t.translation&&(n.translation=new Float32Array(t.translation)),t.rotation&&(n.rotation=new Float32Array(t.rotation)),t.scale&&(n.scale=new Float32Array(t.scale))),t.children){var h=!0,d=!1,v=void 0;try{for(var _,m=t.children[Symbol.iterator]();!(h=(_=m.next()).done);h=!0){var p=e[_.value];n.addNode(this.processNodes(p,e,r))}}catch(t){d=!0,v=t}finally{try{!h&&m.return&&m.return()}finally{if(d)throw v}}}return n}}]),t}();var _=function t(){s(this,t),this.primitives=[]},m=function(){function t(e,r){s(this,t),this.buffer=r[e.buffer],this.byteOffset=e.byteOffset||0,this.byteLength=e.byteLength||null,this.byteStride=e.byteStride,this._viewPromise=null,this._renderBuffer=null}return n(t,[{key:"dataView",value:function(){var t=this;return this._viewPromise||(this._viewPromise=this.buffer.arrayBuffer().then(function(e){return new DataView(e,t.byteOffset,t.byteLength)})),this._viewPromise}},{key:"renderBuffer",value:function(t,e){return this._renderBuffer||(this._renderBuffer=t.createRenderBuffer(e,this.dataView())),this._renderBuffer}}]),t}(),p=function(){function t(e,r,n){s(this,t),this.json=e,this.baseUrl=r,this._dataPromise=null,this._texture=null,n&&(this._dataPromise=Promise.resolve(n))}return n(t,[{key:"arrayBuffer",value:function(){if(!this._dataPromise){if(h(this.json.uri)){var t=this.json.uri.replace("data:application/octet-stream;base64,",""),e=Uint8Array.from(atob(t),function(t){return t.charCodeAt(0)});return this._dataPromise=Promise.resolve(e.buffer),this._dataPromise}this._dataPromise=fetch(d(this.json.uri,this.baseUrl)).then(function(t){return t.arrayBuffer()})}return this._dataPromise}},{key:"texture",value:function(t){var e=this;if(!this._texture){var r=new Image;if(this._texture=new u.ImageTexture(r),this.json.uri)h(this.json.uri)?r.src=this.json.uri:r.src=""+this.baseUrl+this.json.uri;else t[this.json.bufferView].dataView().then(function(t){var n=new Blob([t],{type:e.json.mimeType});r.src=window.URL.createObjectURL(n)})}return this._texture}}]),t}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.SkyboxNode=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(7),a=r(2),u=r(8);function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function c(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var l=WebGLRenderingContext,h=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.renderOrder=i.RENDER_ORDER.SKY,t.state.depthFunc=l.LEQUAL,t.state.depthMask=!1,t.image=t.defineSampler("diffuse"),t.texCoordScaleOffset=t.defineUniform("texCoordScaleOffset",[1,1,0,0,1,1,0,0],4),t}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"SKYBOX"}},{key:"vertexSource",get:function(){return"\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      // Drop the translation portion of the view matrix\n      view[3].xyz = vec3(0.0, 0.0, 0.0);\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n\n      // Returning the W component for both Z and W forces the geometry depth to\n      // the far plane. When combined with a depth func of LEQUAL this makes the\n      // sky write to any depth fragment that has not been written to yet.\n      return out_vec.xyww;\n    }"}},{key:"fragmentSource",get:function(){return"\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }"}}]),e}();e.SkyboxNode=function(t){function e(t){s(this,e);var r=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r._url=t.url,r._displayMode=t.displayMode||"mono",r._rotationY=t.rotationY||0,r}return f(e,a.Node),n(e,[{key:"onRendererChanged",value:function(t){for(var e=[],r=[],n=0;n<=40;++n)for(var i=n*Math.PI/40,a=Math.sin(i),s=Math.cos(i),c=41*n,f=41*(n+1),d=0;d<=40;++d){var v=2*d*Math.PI/40+this._rotationY,_=Math.sin(v)*a,m=s,p=-Math.cos(v)*a,y=d/40,b=n/40;if(e.push(_,m,p,y,b),n<40&&d<40){var g=c+d,M=f+d;r.push(g,M,g+1,M,M+1,g+1)}}var x=t.createRenderBuffer(l.ARRAY_BUFFER,new Float32Array(e)),T=t.createRenderBuffer(l.ELEMENT_ARRAY_BUFFER,new Uint16Array(r)),E=[new o.PrimitiveAttribute("POSITION",x,3,l.FLOAT,20,0),new o.PrimitiveAttribute("TEXCOORD_0",x,2,l.FLOAT,20,12)],w=new o.Primitive(E,r.length);w.setIndexBuffer(T);var O=new h;switch(O.image.texture=new u.UrlTexture(this._url),this._displayMode){case"mono":O.texCoordScaleOffset.value=[1,1,0,0,1,1,0,0];break;case"stereoTopBottom":O.texCoordScaleOffset.value=[1,.5,0,0,1,.5,0,.5];break;case"stereoLeftRight":O.texCoordScaleOffset.value=[.5,1,0,0,.5,1,.5,0]}var R=t.createRenderPrimitive(w,O);this.addRenderPrimitive(R)}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.VideoNode=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(7),a=r(2),u=r(8);function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function c(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var l=WebGLRenderingContext,h=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.image=t.defineSampler("diffuse"),t.texCoordScaleOffset=t.defineUniform("texCoordScaleOffset",[1,1,0,0,1,1,0,0],4),t}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"VIDEO_PLAYER"}},{key:"vertexSource",get:function(){return"\n    uniform int EYE_INDEX;\n    uniform vec4 texCoordScaleOffset[2];\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vec4 scaleOffset = texCoordScaleOffset[EYE_INDEX];\n      vTexCoord = (TEXCOORD_0 * scaleOffset.xy) + scaleOffset.zw;\n      vec4 out_vec = proj * view * model * vec4(POSITION, 1.0);\n      return out_vec;\n    }"}},{key:"fragmentSource",get:function(){return"\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    vec4 fragment_main() {\n      return texture2D(diffuse, vTexCoord);\n    }"}}]),e}();e.VideoNode=function(t){function e(t){s(this,e);var r=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return r._video=t.video,r._displayMode=t.displayMode||"mono",r._video_texture=new u.VideoTexture(r._video),r}return f(e,a.Node),n(e,[{key:"onRendererChanged",value:function(t){var e=[0,2,1,0,3,2],r=t.createRenderBuffer(l.ARRAY_BUFFER,new Float32Array([-1,1,0,0,0,1,1,0,1,0,1,-1,0,1,1,-1,-1,0,0,1])),n=t.createRenderBuffer(l.ELEMENT_ARRAY_BUFFER,new Uint16Array(e)),i=[new o.PrimitiveAttribute("POSITION",r,3,l.FLOAT,20,0),new o.PrimitiveAttribute("TEXCOORD_0",r,2,l.FLOAT,20,12)],a=new o.Primitive(i,e.length);a.setIndexBuffer(n),a.setBounds([-1,-1,0],[1,1,.015]);var u=new h;switch(u.image.texture=this._video_texture,this._displayMode){case"mono":u.texCoordScaleOffset.value=[1,1,0,0,1,1,0,0];break;case"stereoTopBottom":u.texCoordScaleOffset.value=[1,.5,0,0,1,.5,0,.5];break;case"stereoLeftRight":u.texCoordScaleOffset.value=[.5,1,0,0,.5,1,.5,0]}var s=t.createRenderPrimitive(a,u);this.addRenderPrimitive(s)}},{key:"aspectRatio",get:function(){var t=this._video.videoWidth,e=this._video.videoHeight;switch(this._displayMode){case"stereoTopBottom":e*=.5;break;case"stereoLeftRight":t*=.5}return e&&t?t/e:1}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.Scene=e.WebXRView=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(11),o=r(31),a=r(32),u=r(2),s=r(6);function c(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function f(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function l(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var h=e.WebXRView=function(t){function e(t,r,n){return c(this,e),f(this,(e.__proto__||Object.getPrototypeOf(e)).call(this,t?t.projectionMatrix:null,r&&t?t.viewMatrix:null,n&&t?n.getViewport(t):null,t?t.eye:"left"))}return l(e,i.RenderView),e}();e.Scene=function(t){function e(){c(this,e);var t=f(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._timestamp=-1,t._frameDelta=0,t._statsStanding=!1,t._stats=null,t._statsEnabled=!1,t.enableStats(!0),t._inputRenderer=null,t._resetInputEndFrame=!0,t._lastTimestamp=0,t._hoverFrame=0,t._hoveredNodes=[],t.clear=!0,t}return l(e,u.Node),n(e,[{key:"setRenderer",value:function(t){this._setRenderer(t)}},{key:"loseRenderer",value:function(){this._renderer&&(this._stats=null,this._renderer=null,this._inputRenderer=null)}},{key:"updateInputSources",value:function(t,e){if(t.session.getInputSources){var r=t.session.getInputSources(),n=[],i=this._hoverFrame;this._hoverFrame++;var o=!0,a=!1,u=void 0;try{for(var c,f=r[Symbol.iterator]();!(o=(c=f.next()).done);o=!0){var l=c.value,h=t.getInputPose(l,e);if(h&&(h.gripTransform.matrix&&this.inputRenderer.addController(h.gripTransform.matrix),h.targetRay)){"tracked-pointer"==l.targetRayMode&&this.inputRenderer.addLaserPointer(h.targetRay);var d=this.hitTest(h.targetRay);if(d)this.inputRenderer.addCursor(d.intersection),d.node._hoverFrameId!=i&&d.node.onHoverStart(),d.node._hoverFrameId=this._hoverFrame,n.push(d.node);else{var v=s.vec3.fromValues(h.targetRay.origin.x,h.targetRay.origin.y,h.targetRay.origin.z);s.vec3.add(v,v,[1*h.targetRay.direction.x,1*h.targetRay.direction.y,1*h.targetRay.direction.z]),this.inputRenderer.addCursor(v)}}}}catch(t){a=!0,u=t}finally{try{!o&&f.return&&f.return()}finally{if(a)throw u}}var _=!0,m=!1,p=void 0;try{for(var y,b=this._hoveredNodes[Symbol.iterator]();!(_=(y=b.next()).done);_=!0){var g=y.value;g._hoverFrameId!=this._hoverFrame&&g.onHoverEnd()}}catch(t){m=!0,p=t}finally{try{!_&&b.return&&b.return()}finally{if(m)throw p}}this._hoveredNodes=n}}},{key:"handleSelect",value:function(t,e,r){var n=e.getInputPose(t,r);n&&this.handleSelectPointer(n.targetRay)}},{key:"handleSelectPointer",value:function(t){if(t){var e=this.hitTest(t);e&&e.node.handleSelect()}}},{key:"enableStats",value:function(t){t!=this._statsEnabled&&(this._statsEnabled=t,t?(this._stats=new a.StatsViewer,this._stats.selectable=!0,this.addNode(this._stats),this._statsStanding?this._stats.translation=[0,1.4,-.75]:this._stats.translation=[0,-.3,-.5],this._stats.scale=[.3,.3,.3],s.quat.fromEuler(this._stats.rotation,-45,0,0)):t||this._stats&&(this.removeNode(this._stats),this._stats=null))}},{key:"standingStats",value:function(t){this._statsStanding=t,this._stats&&(this._statsStanding?this._stats.translation=[0,1.4,-.75]:this._stats.translation=[0,-.3,-.5],this._stats.scale=[.3,.3,.3],s.quat.fromEuler(this._stats.rotation,-45,0,0))}},{key:"draw",value:function(t,e,r){var n=new i.RenderView;n.projectionMatrix=t,n.viewMatrix=e,r&&(n.eye=r),this.drawViewArray([n])}},{key:"drawXRFrame",value:function(t,e){if(this._renderer&&e){var r=this._renderer.gl,n=t.session.renderState.baseLayer;if(r){r.bindFramebuffer(r.FRAMEBUFFER,n.framebuffer),this.clear&&r.clear(r.COLOR_BUFFER_BIT|r.DEPTH_BUFFER_BIT);var i=[],o=!0,a=!1,u=void 0;try{for(var s,c=e.views[Symbol.iterator]();!(o=(s=c.next()).done);o=!0){var f=s.value;i.push(new h(f,e,n))}}catch(t){a=!0,u=t}finally{try{!o&&c.return&&c.return()}finally{if(a)throw u}}this.drawViewArray(i)}}}},{key:"drawViewArray",value:function(t){this._renderer&&this._renderer.drawViews(t,this)}},{key:"startFrame",value:function(){var t=this._timestamp;return this._timestamp=performance.now(),this._stats&&this._stats.begin(),this._frameDelta=t>=0?this._timestamp-t:0,this._update(this._timestamp,this._frameDelta),this._frameDelta}},{key:"endFrame",value:function(){this._inputRenderer&&this._resetInputEndFrame&&this._inputRenderer.reset(),this._stats&&this._stats.end()}},{key:"onLoadScene",value:function(t){return Promise.resolve()}},{key:"inputRenderer",get:function(){return this._inputRenderer||(this._inputRenderer=new o.InputRenderer,this.addNode(this._inputRenderer)),this._inputRenderer}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.InputRenderer=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(7),u=r(8);function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function c(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var l=WebGLRenderingContext,h=new Uint8Array([255,255,255,1,255,255,255,2,191,191,191,4,204,204,204,5,219,219,219,7,204,204,204,10,216,216,216,13,210,210,210,17,206,206,206,21,206,206,206,26,206,206,206,31,205,205,205,36,200,200,200,42,201,201,201,47,201,201,201,52,201,201,201,57,201,201,201,61,200,200,200,65,203,203,203,68,238,238,238,135,250,250,250,200,249,249,249,201,249,249,249,201,250,250,250,201,250,250,250,201,249,249,249,201,249,249,249,201,250,250,250,200,238,238,238,135,203,203,203,68,200,200,200,65,201,201,201,61,201,201,201,57,201,201,201,52,201,201,201,47,200,200,200,42,205,205,205,36,206,206,206,31,206,206,206,26,206,206,206,21,210,210,210,17,216,216,216,13,204,204,204,10,219,219,219,7,204,204,204,5,191,191,191,4,255,255,255,2,255,255,255,1]),d=[1,1,1,.25],v=[1,1,1,1],_=[.5,.5,.5,.25],m={controllers:!0,lasers:!0,cursors:!0},p=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.renderOrder=i.RENDER_ORDER.ADDITIVE,t.state.cullFace=!1,t.state.blend=!0,t.state.blendFuncSrc=l.ONE,t.state.blendFuncDst=l.ONE,t.state.depthMask=!1,t.laser=t.defineSampler("diffuse"),t.laser.texture=new u.DataTexture(h,48,1),t.laserColor=t.defineUniform("laserColor",d),t}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"INPUT_LASER"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n    attribute vec2 TEXCOORD_0;\n\n    varying vec2 vTexCoord;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vTexCoord = TEXCOORD_0;\n      return proj * view * model * vec4(POSITION, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return"\n    precision mediump float;\n\n    uniform vec4 laserColor;\n    uniform sampler2D diffuse;\n    varying vec2 vTexCoord;\n\n    const float fadePoint = 0.5335;\n    const float fadeEnd = 0.535;\n\n    vec4 fragment_main() {\n      vec2 uv = vTexCoord;\n      float front_fade_factor = 1.0 - clamp(1.0 - (uv.y - fadePoint) / (1.0 - fadePoint), 0.0, 1.0);\n      float back_fade_factor = clamp((uv.y - fadePoint) / (fadeEnd - fadePoint), 0.0, 1.0);\n      vec4 color = laserColor * texture2D(diffuse, vTexCoord);\n      float opacity = color.a * front_fade_factor * back_fade_factor;\n      return vec4(color.rgb * opacity, opacity);\n    }"}}]),e}(),y="\nattribute vec4 POSITION;\n\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n  vLuminance = POSITION.z;\n  vOpacity = POSITION.w;\n\n  // Billboarded, constant size vertex transform.\n  vec4 screenPos = proj * view * model * vec4(0.0, 0.0, 0.0, 1.0);\n  screenPos /= screenPos.w;\n  screenPos.xy += POSITION.xy;\n  return screenPos;\n}",b="\nprecision mediump float;\n\nuniform vec4 cursorColor;\nvarying float vLuminance;\nvarying float vOpacity;\n\nvec4 fragment_main() {\n  vec3 color = cursorColor.rgb * vLuminance;\n  float opacity = cursorColor.a * vOpacity;\n  return vec4(color * opacity, opacity);\n}",g=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.renderOrder=i.RENDER_ORDER.ADDITIVE,t.state.cullFace=!1,t.state.blend=!0,t.state.blendFuncSrc=l.ONE,t.state.depthMask=!1,t.cursorColor=t.defineUniform("cursorColor",v),t}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"INPUT_CURSOR"}},{key:"vertexSource",get:function(){return y}},{key:"fragmentSource",get:function(){return b}}]),e}(),M=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t.renderOrder=i.RENDER_ORDER.ADDITIVE,t.state.cullFace=!1,t.state.blend=!0,t.state.blendFuncSrc=l.ONE,t.state.depthFunc=l.GEQUAL,t.state.depthMask=!1,t.cursorColor=t.defineUniform("cursorColor",_),t}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"INPUT_CURSOR_2"}},{key:"vertexSource",get:function(){return y}},{key:"fragmentSource",get:function(){return b}}]),e}();e.InputRenderer=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._maxInputElements=32,t._controllers=[],t._controllerNode=null,t._controllerNodeHandedness=null,t._lasers=null,t._cursors=null,t._activeControllers=0,t._activeLasers=0,t._activeCursors=0,t}return f(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){this._controllers=[],this._controllerNode=null,this._controllerNodeHandedness=null,this._lasers=null,this._cursors=null,this._activeControllers=0,this._activeLasers=0,this._activeCursors=0}},{key:"setControllerMesh",value:function(t){var e=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"right";this._controllerNode=t,this._controllerNode.visible=!1,this.addNode(this._controllerNode),this._controllerNodeHandedness=e}},{key:"addController",value:function(t){if(this._controllerNode){var e=null;this._activeControllers<this._controllers.length?e=this._controllers[this._activeControllers]:(e=this._controllerNode.clone(),this.addNode(e),this._controllers.push(e)),this._activeControllers=(this._activeControllers+1)%this._maxInputElements,e.matrix=t,e.visible=!0}}},{key:"addLaserPointer",value:function(t){!this._lasers&&this._renderer&&(this._lasers=[this._createLaserMesh()],this.addNode(this._lasers[0]));var e=null;this._activeLasers<this._lasers.length?e=this._lasers[this._activeLasers]:(e=this._lasers[0].clone(),this.addNode(e),this._lasers.push(e)),this._activeLasers=(this._activeLasers+1)%this._maxInputElements,e.matrix=t.transformMatrix,e.visible=!0}},{key:"addCursor",value:function(t){!this._cursors&&this._renderer&&(this._cursors=[this._createCursorMesh()],this.addNode(this._cursors[0]));var e=null;this._activeCursors<this._cursors.length?e=this._cursors[this._activeCursors]:(e=this._cursors[0].clone(),this.addNode(e),this._cursors.push(e)),this._activeCursors=(this._activeCursors+1)%this._maxInputElements,e.translation=t,e.visible=!0}},{key:"reset",value:function(t){if(t||(t=m),this._controllers&&t.controllers){var e=!0,r=!1,n=void 0;try{for(var i,o=this._controllers[Symbol.iterator]();!(e=(i=o.next()).done);e=!0){i.value.visible=!1}}catch(t){r=!0,n=t}finally{try{!e&&o.return&&o.return()}finally{if(r)throw n}}this._activeControllers=0}if(this._lasers&&t.lasers){var a=!0,u=!1,s=void 0;try{for(var c,f=this._lasers[Symbol.iterator]();!(a=(c=f.next()).done);a=!0){c.value.visible=!1}}catch(t){u=!0,s=t}finally{try{!a&&f.return&&f.return()}finally{if(u)throw s}}this._activeLasers=0}if(this._cursors&&t.cursors){var l=!0,h=!1,d=void 0;try{for(var v,_=this._cursors[Symbol.iterator]();!(l=(v=_.next()).done);l=!0){v.value.visible=!1}}catch(t){h=!0,d=t}finally{try{!l&&_.return&&_.return()}finally{if(h)throw d}}this._activeCursors=0}}},{key:"_createLaserMesh",value:function(){var t=this._renderer._gl,e=.005,r=[0,e,0,0,1,0,e,-1,0,0,0,-e,0,1,1,0,-e,-1,1,0,e,0,0,0,1,e,0,-1,0,0,-e,0,0,1,1,-e,0,-1,1,0,0,-e,0,0,1,0,-e,-1,0,0,0,e,0,1,1,0,e,-1,1,0,-e,0,0,0,1,-e,0,-1,0,0,e,0,0,1,1,e,0,-1,1,0],n=[0,1,2,1,3,2,4,5,6,5,7,6,8,9,10,9,11,10,12,13,14,13,15,14],i=this._renderer.createRenderBuffer(t.ARRAY_BUFFER,new Float32Array(r)),u=this._renderer.createRenderBuffer(t.ELEMENT_ARRAY_BUFFER,new Uint16Array(n)),s=n.length,c=[new a.PrimitiveAttribute("POSITION",i,3,t.FLOAT,20,0),new a.PrimitiveAttribute("TEXCOORD_0",i,2,t.FLOAT,20,12)],f=new a.Primitive(c,s);f.setIndexBuffer(u);var l=new p,h=this._renderer.createRenderPrimitive(f,l),d=new o.Node;return d.addRenderPrimitive(h),d}},{key:"_createCursorMesh",value:function(){for(var t=this._renderer._gl,e=[],r=[],n=2*Math.PI/16,i=0;i<16;++i){var u=i*n,s=Math.cos(u),c=Math.sin(u);e.push(.004*s,.004*c,1,.9),i>1&&r.push(0,i-1,i)}for(var f=0;f<16;++f){var l=f*n,h=Math.cos(l),d=Math.sin(l);if(e.push(.004*h,.004*d,.5,.75),e.push(.007*h,.007*d,0,0),f>0){var v=16+2*f;r.push(v-2,v-1,v),r.push(v-1,v+1,v)}}r.push(46,47,16),r.push(47,17,16);var _=this._renderer.createRenderBuffer(t.ARRAY_BUFFER,new Float32Array(e)),m=this._renderer.createRenderBuffer(t.ELEMENT_ARRAY_BUFFER,new Uint16Array(r)),p=r.length,y=[new a.PrimitiveAttribute("POSITION",_,4,t.FLOAT,16,0)],b=new a.Primitive(y,p);b.setIndexBuffer(m);var x=new g,T=new M,E=this._renderer.createRenderPrimitive(b,x),w=this._renderer.createRenderPrimitive(b,T),O=new o.Node;return O.addRenderPrimitive(E),O.addRenderPrimitive(w),O}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.StatsViewer=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(7),u=r(33);function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function c(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var l=30,h=90,d=function(t){function e(){return s(this,e),c(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"STATS_VIEWER"}},{key:"vertexSource",get:function(){return"\n    attribute vec3 POSITION;\n    attribute vec3 COLOR_0;\n    varying vec4 vColor;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      vColor = vec4(COLOR_0, 1.0);\n      return proj * view * model * vec4(POSITION, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return"\n    precision mediump float;\n    varying vec4 vColor;\n\n    vec4 fragment_main() {\n      return vColor;\n    }"}}]),e}();function v(t){return.9/l*t-.45}function _(t){return Math.min(t,h)*(.7/h)-.45}var m=window.performance&&performance.now?performance.now.bind(performance):Date.now;e.StatsViewer=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._performanceMonitoring=!1,t._startTime=m(),t._prevFrameTime=t._startTime,t._prevGraphUpdateTime=t._startTime,t._frames=0,t._fpsAverage=0,t._fpsMin=0,t._fpsStep=t._performanceMonitoring?1e3:250,t._lastSegment=0,t._fpsVertexBuffer=null,t._fpsRenderPrimitive=null,t._fpsNode=null,t._sevenSegmentNode=new u.SevenSegmentText,t._sevenSegmentNode.matrix=new Float32Array([.075,0,0,0,0,.075,0,0,0,0,1,0,-.3625,.3625,.02,1]),t}return f(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){this.clearNodes();for(var e=t.gl,r=[],n=[],i=0;i<l;++i){r.push(v(i),_(0),.02,0,1,1),r.push(v(i+1),_(0),.02,0,1,1),r.push(v(i),_(0),.02,0,1,1),r.push(v(i+1),_(0),.02,0,1,1);var u=4*i;n.push(u,u+3,u+1,u+3,u,u+2)}function s(t,e,i,o,a,u,s,c){var f=r.length/6;r.push(t,e,a,u,s,c),r.push(i,o,a,u,s,c),r.push(t,o,a,u,s,c),r.push(i,e,a,u,s,c),n.push(f,f+1,f+2,f,f+3,f+1)}s(-.5,-.5,.5,.5,0,0,0,.125),s(-.45,-.45,.45,.25,.01,0,0,.4),s(-.45,_(30),.45,_(32),.015,.5,0,.5),s(-.45,_(60),.45,_(62),.015,.2,0,.75),this._fpsVertexBuffer=t.createRenderBuffer(e.ARRAY_BUFFER,new Float32Array(r),e.DYNAMIC_DRAW);var c=t.createRenderBuffer(e.ELEMENT_ARRAY_BUFFER,new Uint16Array(n)),f=[new a.PrimitiveAttribute("POSITION",this._fpsVertexBuffer,3,e.FLOAT,24,0),new a.PrimitiveAttribute("COLOR_0",this._fpsVertexBuffer,3,e.FLOAT,24,12)],h=new a.Primitive(f,n.length);h.setIndexBuffer(c),h.setBounds([-.5,-.5,0],[.5,.5,.015]),this._fpsRenderPrimitive=t.createRenderPrimitive(h,new d),this._fpsNode=new o.Node,this._fpsNode.addRenderPrimitive(this._fpsRenderPrimitive),this.addNode(this._fpsNode),this.addNode(this._sevenSegmentNode)}},{key:"begin",value:function(){this._startTime=m()}},{key:"end",value:function(){var t=m(),e=1e3/(t-this._prevFrameTime);if(this._prevFrameTime=t,this._fpsMin=this._frames?Math.min(this._fpsMin,e):e,this._frames++,t>this._prevGraphUpdateTime+this._fpsStep){var r=t-this._prevGraphUpdateTime;this._fpsAverage=Math.round(1e3/(r/this._frames)),this._updateGraph(this._fpsMin,this._fpsAverage),this._performanceMonitoring&&console.log("Average FPS: "+this._fpsAverage+" Min FPS: "+this._fpsMin),this._prevGraphUpdateTime=t,this._frames=0,this._fpsMin=0}}},{key:"_updateGraph",value:function(t,e){var r,n=(r=t,{r:Math.max(0,Math.min(1,1-r/60)),g:Math.max(0,Math.min(1,(r-15)/(h-15))),b:Math.max(0,Math.min(1,(r-15)/(h-15)))}),i=_(t-1),o=_(e+1),a=[v(this._lastSegment),o,.02,n.r,n.g,n.b,v(this._lastSegment+1),o,.02,n.r,n.g,n.b,v(this._lastSegment),i,.02,n.r,n.g,n.b,v(this._lastSegment+1),i,.02,n.r,n.g,n.b];n.r=.2,n.g=1,n.b=.2,this._lastSegment==l-1?(this._renderer.updateRenderBuffer(this._fpsVertexBuffer,new Float32Array(a),24*this._lastSegment*4),a=[v(0),_(h),.02,n.r,n.g,n.b,v(.25),_(h),.02,n.r,n.g,n.b,v(0),_(0),.02,n.r,n.g,n.b,v(.25),_(0),.02,n.r,n.g,n.b],this._renderer.updateRenderBuffer(this._fpsVertexBuffer,new Float32Array(a),0)):(a.push(v(this._lastSegment+1),_(h),.02,n.r,n.g,n.b,v(this._lastSegment+1.25),_(h),.02,n.r,n.g,n.b,v(this._lastSegment+1),_(0),.02,n.r,n.g,n.b,v(this._lastSegment+1.25),_(0),.02,n.r,n.g,n.b),this._renderer.updateRenderBuffer(this._fpsVertexBuffer,new Float32Array(a),24*this._lastSegment*4)),this._lastSegment=(this._lastSegment+1)%l,this._sevenSegmentNode.text=this._fpsAverage+" FP5"}},{key:"performanceMonitoring",get:function(){return this._performanceMonitoring},set:function(t){this._performanceMonitoring=t,this._fpsStep=t?1e3:250}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.SevenSegmentText=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(3),o=r(2),a=r(7);function u(t){if(Array.isArray(t)){for(var e=0,r=Array(t.length);e<t.length;e++)r[e]=t[e];return r}return Array.from(t)}function s(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}function c(t,e){if(!t)throw new ReferenceError("this hasn't been initialised - super() hasn't been called");return!e||"object"!=typeof e&&"function"!=typeof e?t:e}function f(t,e){if("function"!=typeof e&&null!==e)throw new TypeError("Super expression must either be null or a function, not "+typeof e);t.prototype=Object.create(e&&e.prototype,{constructor:{value:t,enumerable:!1,writable:!0,configurable:!0}}),e&&(Object.setPrototypeOf?Object.setPrototypeOf(t,e):t.__proto__=e)}var l=function(t){function e(){return s(this,e),c(this,(e.__proto__||Object.getPrototypeOf(e)).apply(this,arguments))}return f(e,i.Material),n(e,[{key:"materialName",get:function(){return"SEVEN_SEGMENT_TEXT"}},{key:"vertexSource",get:function(){return"\n    attribute vec2 POSITION;\n\n    vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {\n      return proj * view * model * vec4(POSITION, 0.0, 1.0);\n    }"}},{key:"fragmentSource",get:function(){return"\n    precision mediump float;\n    const vec4 color = vec4(0.0, 1.0, 0.0, 1.0);\n\n    vec4 fragment_main() {\n      return color;\n    }"}}]),e}();e.SevenSegmentText=function(t){function e(){s(this,e);var t=c(this,(e.__proto__||Object.getPrototypeOf(e)).call(this));return t._text="",t._charNodes=[],t}return f(e,o.Node),n(e,[{key:"onRendererChanged",value:function(t){this.clearNodes(),this._charNodes=[];var e=[],r={},n=[];function i(t,n,i,o,a){var u=e.length/2;e.push(n,i,o,i,o,a,n,a),r[t]=[u,u+2,u+1,u,u+3,u+2]}var o={};function s(t,e){for(var i={character:t,offset:2*n.length,count:0},a=0;a<e.length;++a){var s=e[a],c=r[s];i.count+=c.length,n.push.apply(n,u(c))}o[t]=i}i(0,-1,1,.5,.75),i(1,-1,.125,.5,-.125),i(2,-1,-.75,.5,-1),i(3,-1,1,-.75,-.125),i(4,.25,1,.5,-.125),i(5,-1,.125,-.75,-1),i(6,.25,.125,.5,-1),s("0",[0,2,3,4,5,6]),s("1",[4,6]),s("2",[0,1,2,4,5]),s("3",[0,1,2,4,6]),s("4",[1,3,4,6]),s("5",[0,1,2,3,6]),s("6",[0,1,2,3,5,6]),s("7",[0,4,6]),s("8",[0,1,2,3,4,5,6]),s("9",[0,1,2,3,4,6]),s("A",[0,1,3,4,5,6]),s("B",[1,2,3,5,6]),s("C",[0,2,3,5]),s("D",[1,2,4,5,6]),s("E",[0,1,2,4,6]),s("F",[0,1,3,5]),s("P",[0,1,3,4,5]),s("-",[1]),s(" ",[]),s("_",[2]);var c=t.gl,f=t.createRenderBuffer(c.ARRAY_BUFFER,new Float32Array(e)),h=t.createRenderBuffer(c.ELEMENT_ARRAY_BUFFER,new Uint16Array(n)),d=[new a.PrimitiveAttribute("POSITION",f,2,c.FLOAT,8,0)],v=new a.Primitive(d,n.length);v.setIndexBuffer(h);var _=new l;for(var m in this._charPrimitives={},o){var p=o[m];v.elementCount=p.count,v.indexByteOffset=p.offset,this._charPrimitives[m]=t.createRenderPrimitive(v,_)}this.text=this._text}},{key:"text",get:function(){return this._text},set:function(t){this._text=t;for(var e=0,r=null;e<t.length;++e)if(r=t[e]in this._charPrimitives?this._charPrimitives[t[e]]:this._charPrimitives._,this._charNodes.length<=e){var n=new o.Node;n.addRenderPrimitive(r);var i=2*e;n.translation=[i,0,0],this._charNodes.push(n),this.addNode(n)}else this._charNodes[e].clearRenderPrimitives(),this._charNodes[e].addRenderPrimitive(r),this._charNodes[e].visible=!0;for(;e<this._charNodes.length;++e)this._charNodes[e].visible=!1}}]),e}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0}),e.FallbackHelper=void 0;var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}(),i=r(6);e.FallbackHelper=function(){function t(e,r){var n=this;!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t),this.scene=e,this.gl=r,this._emulateStage=!1,this.lookYaw=0,this.lookPitch=0,this.viewMatrix=i.mat4.create();var o=i.mat4.create();function a(){r.canvas.width=r.canvas.offsetWidth*window.devicePixelRatio,r.canvas.height=r.canvas.offsetHeight*window.devicePixelRatio,i.mat4.perspective(o,.4*Math.PI,r.canvas.width/r.canvas.height,.1,1e3),r.viewport(0,0,r.drawingBufferWidth,r.drawingBufferHeight)}this.projectionMatrix=o,i.mat4.identity(this.viewMatrix),window.addEventListener("resize",a),a();var u=r.canvas,s=0,c=0;u.addEventListener("touchstart",function(t){2==t.touches.length&&(s=t.touches[1].pageX,c=t.touches[1].pageY)}),u.addEventListener("touchmove",function(t){2==t.touches.length&&(n.onLook(t.touches[1].pageX-s,t.touches[1].pageY-c),s=t.touches[1].pageX,c=t.touches[1].pageY)}),u.addEventListener("mousemove",function(t){2&t.buttons&&n.onLook(t.movementX,t.movementY)}),u.addEventListener("contextmenu",function(t){t.preventDefault()}),this.boundOnFrame=this.onFrame.bind(this),window.requestAnimationFrame(this.boundOnFrame)}return n(t,[{key:"onLook",value:function(t,e){this.lookYaw+=.0025*t,this.lookPitch+=.0025*e,this.lookPitch<.5*-Math.PI&&(this.lookPitch=.5*-Math.PI),this.lookPitch>.5*Math.PI&&(this.lookPitch=.5*Math.PI),this.updateView()}},{key:"onFrame",value:function(t){var e=this.gl;window.requestAnimationFrame(this.boundOnFrame),this.scene.startFrame(),e.clear(e.COLOR_BUFFER_BIT|e.DEPTH_BUFFER_BIT),this.scene.draw(this.projectionMatrix,this.viewMatrix),this.scene.endFrame()}},{key:"updateView",value:function(){i.mat4.identity(this.viewMatrix),i.mat4.rotateX(this.viewMatrix,this.viewMatrix,-this.lookPitch),i.mat4.rotateY(this.viewMatrix,this.viewMatrix,-this.lookYaw),this._emulateStage&&i.mat4.translate(this.viewMatrix,this.viewMatrix,[0,-1.6,0])}},{key:"emulateStage",get:function(){return this._emulateStage},set:function(t){this._emulateStage=t,this.updateView()}}]),t}()},function(t,e,r){"use strict";Object.defineProperty(e,"__esModule",{value:!0});var n=function(){function t(t,e){for(var r=0;r<e.length;r++){var n=e[r];n.enumerable=n.enumerable||!1,n.configurable=!0,"value"in n&&(n.writable=!0),Object.defineProperty(t,n.key,n)}}return function(e,r,n){return r&&t(e.prototype,r),n&&t(e,n),e}}();var i=null;function o(){if(!i){i={};for(var t=(window.location.search.substring(1)||window.location.hash.substring(1)).split("&"),e=0;e<t.length;e++){var r=t[e].split("=");i[r[0].toLowerCase()]=decodeURIComponent(r[1])}}}window.onhashchange=function(){i=null};e.QueryArgs=function(){function t(){!function(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}(this,t)}return n(t,null,[{key:"getString",value:function(t,e){o();var r=t.toLowerCase();return r in i?i[r]:e}},{key:"getInt",value:function(t,e){o();var r=t.toLowerCase();return r in i?parseInt(i[r],10):e}},{key:"getFloat",value:function(t,e){o();var r=t.toLowerCase();return r in i?parseFloat(i[r]):e}},{key:"getBool",value:function(t,e){o();var r=t.toLowerCase();return r in i?0!=parseInt(i[r],10):e}}]),t}()}])});
\ No newline at end of file
diff --git a/js/cottontail/package.json b/js/cottontail/package.json
deleted file mode 100644
index f12f6a332..000000000
--- a/js/cottontail/package.json
+++ /dev/null
@@ -1,30 +0,0 @@
-{
-  "name": "cottontail",
-  "version": "0.0.1",
-  "description": "Minimalist WebXR rendering framework",
-  "license": "MIT",
-  "readme": "README.md",
-  "babel": {
-    "presets": [
-      "env"
-    ]
-  },
-  "scripts": {
-    "build": "webpack",
-    "build-debug": "webpack --config webpack.config.debug.js",
-    "build-all": "eslint -c .eslintrc.json src && webpack && webpack --config webpack.config.debug.js",
-    "watch": "webpack --watch",
-    "watch-debug": "webpack --config webpack.config.debug.js --watch",
-    "lint": "eslint -c .eslintrc.json src"
-  },
-  "devDependencies": {
-    "babel-core": "^6.26.2",
-    "babel-loader": "^7.1.4",
-    "babel-preset-env": "^1.6.1",
-    "eslint": "^4.19.1",
-    "eslint-config-google": "^0.9.1",
-    "gl-matrix": "^2.5.1",
-    "webpack": "^4.6.0",
-    "webpack-cli": "^3.1.1"
-  }
-}
diff --git a/js/cottontail/src/cottontail.js b/js/cottontail/src/cottontail.js
deleted file mode 100644
index 26eabba53..000000000
--- a/js/cottontail/src/cottontail.js
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-export {Node} from './core/node.js';
-export {Renderer, createWebGLContext} from './core/renderer.js';
-export {UrlTexture} from './core/texture.js';
-
-export {PrimitiveStream} from './geometry/primitive-stream.js';
-export {BoxBuilder} from './geometry/box-builder.js';
-
-export {PbrMaterial} from './materials/pbr.js';
-
-export {mat4, mat3, vec3, vec4, quat} from './math/gl-matrix.js';
-
-export {BoundsRenderer} from './nodes/bounds-renderer.js';
-export {ButtonNode} from './nodes/button.js';
-export {DropShadowNode} from './nodes/drop-shadow.js';
-export {CubeSeaNode} from './nodes/cube-sea.js';
-export {Gltf2Node} from './nodes/gltf2.js';
-export {SkyboxNode} from './nodes/skybox.js';
-export {VideoNode} from './nodes/video.js';
-
-export {WebXRView, Scene} from './scenes/scene.js';
-
-export {FallbackHelper} from './util/fallback-helper.js';
-export {QueryArgs} from './util/query-args.js';
diff --git a/js/cottontail/src/util/fallback-helper.js b/js/cottontail/src/util/fallback-helper.js
deleted file mode 100644
index e5668a177..000000000
--- a/js/cottontail/src/util/fallback-helper.js
+++ /dev/null
@@ -1,144 +0,0 @@
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-import {mat4} from '../math/gl-matrix.js';
-
-const LOOK_SPEED = 0.0025;
-
-export class FallbackHelper {
-  constructor(scene, gl) {
-    this.scene = scene;
-    this.gl = gl;
-    this._emulateStage = false;
-
-    this.lookYaw = 0;
-    this.lookPitch = 0;
-
-    this.viewMatrix = mat4.create();
-
-    let projectionMatrix = mat4.create();
-    this.projectionMatrix = projectionMatrix;
-
-    // Using a simple identity matrix for the view.
-    mat4.identity(this.viewMatrix);
-
-    // We need to track the canvas size in order to resize the WebGL
-    // backbuffer width and height, as well as update the projection matrix
-    // and adjust the viewport.
-    function onResize() {
-      gl.canvas.width = gl.canvas.offsetWidth * window.devicePixelRatio;
-      gl.canvas.height = gl.canvas.offsetHeight * window.devicePixelRatio;
-      mat4.perspective(projectionMatrix, Math.PI*0.4,
-                       gl.canvas.width/gl.canvas.height,
-                       0.1, 1000.0);
-      gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
-    }
-    window.addEventListener('resize', onResize);
-    onResize();
-
-    // Upding the view matrix with touch or mouse events.
-    let canvas = gl.canvas;
-    let lastTouchX = 0;
-    let lastTouchY = 0;
-    canvas.addEventListener('touchstart', (ev) => {
-      if (ev.touches.length == 2) {
-        lastTouchX = ev.touches[1].pageX;
-        lastTouchY = ev.touches[1].pageY;
-      }
-    });
-    canvas.addEventListener('touchmove', (ev) => {
-      // Rotate the view when two fingers are being used.
-      if (ev.touches.length == 2) {
-        this.onLook(ev.touches[1].pageX - lastTouchX, ev.touches[1].pageY - lastTouchY);
-        lastTouchX = ev.touches[1].pageX;
-        lastTouchY = ev.touches[1].pageY;
-      }
-    });
-    canvas.addEventListener('mousemove', (ev) => {
-      // Only rotate when the right button is pressed.
-      if (ev.buttons & 2) {
-        this.onLook(ev.movementX, ev.movementY);
-      }
-    });
-    canvas.addEventListener('contextmenu', (ev) => {
-      // Prevent context menus on the canvas so that we can use right click to rotate.
-      ev.preventDefault();
-    });
-
-    this.boundOnFrame = this.onFrame.bind(this);
-    window.requestAnimationFrame(this.boundOnFrame);
-  }
-
-  onLook(yaw, pitch) {
-    this.lookYaw += yaw * LOOK_SPEED;
-    this.lookPitch += pitch * LOOK_SPEED;
-
-    // Clamp pitch rotation beyond looking straight up or down.
-    if (this.lookPitch < -Math.PI*0.5) {
-        this.lookPitch = -Math.PI*0.5;
-    }
-    if (this.lookPitch > Math.PI*0.5) {
-        this.lookPitch = Math.PI*0.5;
-    }
-
-    this.updateView();
-  }
-
-  onFrame(t) {
-    let gl = this.gl;
-    window.requestAnimationFrame(this.boundOnFrame);
-
-    this.scene.startFrame();
-
-    // We can skip setting the framebuffer and viewport every frame, because
-    // it won't change from frame to frame and we're updating the viewport
-    // only when we resize for efficency.
-    gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-    // We're drawing with our own projection and view matrix now, and we
-    // don't have a list of view to loop through, but otherwise all of the
-    // WebGL drawing logic is exactly the same.
-    this.scene.draw(this.projectionMatrix, this.viewMatrix);
-
-    this.scene.endFrame();
-  }
-
-  get emulateStage() {
-    return this._emulateStage;
-  }
-
-  set emulateStage(value) {
-    this._emulateStage = value;
-    this.updateView();
-  }
-
-  updateView() {
-    mat4.identity(this.viewMatrix);
-
-    mat4.rotateX(this.viewMatrix, this.viewMatrix, -this.lookPitch);
-    mat4.rotateY(this.viewMatrix, this.viewMatrix, -this.lookYaw);
-
-    // If we're emulating a stage frame of reference we'll need to move the view
-    // matrix roughly a meter and a half up in the air.
-    if (this._emulateStage) {
-      mat4.translate(this.viewMatrix, this.viewMatrix, [0, -1.6, 0]);
-    }
-  }
-}
diff --git a/js/cottontail/webpack.config.debug.js b/js/cottontail/webpack.config.debug.js
deleted file mode 100644
index 6adb05554..000000000
--- a/js/cottontail/webpack.config.debug.js
+++ /dev/null
@@ -1,54 +0,0 @@
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-'use strict';
-
-let fs = require('fs');
-let path = require('path');
-let webpack = require('webpack');
-
-// Read the LICENSE file to append to the generated file.
-let header = fs.readFileSync('LICENSE.md', { encoding: 'utf8' });
-
-module.exports = {
-  entry: './src/cottontail.js',
-  output: {
-    path: path.join(__dirname, 'build'),
-    filename: 'cottontail.debug.js',
-    libraryTarget: 'umd'
-  },
-  devtool: 'source-map',
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        exclude: /node_modules/,
-        use: {
-          loader: 'babel-loader'
-        }
-      }
-    ]
-  },
-  plugins: [
-    new webpack.BannerPlugin({ banner: header, entryOnly: true }),
-  ],
-  mode: "development"
-};
-
diff --git a/js/cottontail/webpack.config.js b/js/cottontail/webpack.config.js
deleted file mode 100644
index 8268697e6..000000000
--- a/js/cottontail/webpack.config.js
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-'use strict';
-
-let fs = require('fs');
-let path = require('path');
-let webpack = require('webpack');
-
-// Read the LICENSE file to append to the generated file.
-let header = fs.readFileSync('LICENSE.md', { encoding: 'utf8' });
-
-module.exports = {
-  entry: './src/cottontail.js',
-  output: {
-    path: path.join(__dirname, 'build'),
-    filename: 'cottontail.js',
-    libraryTarget: 'umd'
-  },
-  module: {
-    rules: [
-      {
-        test: /\.js$/,
-        exclude: /node_modules/,
-        use: {
-          loader: 'babel-loader'
-        }
-      }
-    ]
-  },
-  plugins: [
-    new webpack.BannerPlugin({ banner: header, entryOnly: true }),
-  ],
-  mode: "production"
-};
-
diff --git a/js/render/README.md b/js/render/README.md
new file mode 100644
index 000000000..673a0ec98
--- /dev/null
+++ b/js/render/README.md
@@ -0,0 +1,23 @@
+WebXR Samples Renderer
+==========================================
+A simple WebGL renderering framework optimised for demonstrating WebXR concepts.
+
+This library does two things well and not much else:
+
+1) Loading and Rendering GLTF 2.0 files.
+2) Optimising for WebXR-style rendering.
+
+However it explicitly goes out of it's way to NOT wrap much, if any, WebXR
+functionality. This is because arguably it's sole purpose in life is to enable
+the WebXR samples, who's sole purpose in life is to provide easy-to-follow code
+snippets demonstrating the API use and thus anything this code did to hide the
+WebXR API's direct use is counter productive.
+
+The only "third party" dependency is gl-matrix.
+
+Using this renderer for your own projects is very much not recommended, as you will
+almost certainly be better served by one of the other more popular frameworks
+out there.
+
+Library previously had a build step but all WebXR-enabled browsers support JS
+modules, so it turned out to be more of a nusiance than it was worth.
diff --git a/js/cottontail/src/core/material.js b/js/render/core/material.js
similarity index 100%
rename from js/cottontail/src/core/material.js
rename to js/render/core/material.js
diff --git a/js/cottontail/src/core/node.js b/js/render/core/node.js
similarity index 96%
rename from js/cottontail/src/core/node.js
rename to js/render/core/node.js
index 37a072e31..a85bb28ce 100644
--- a/js/cottontail/src/core/node.js
+++ b/js/render/core/node.js
@@ -356,14 +356,14 @@ export class Node {
     }
   }
 
-  _hitTestSelectableNode(ray) {
+  _hitTestSelectableNode(rigidTransform) {
     if (this._renderPrimitives) {
       let localRay = null;
       for (let primitive of this._renderPrimitives) {
         if (primitive._min) {
           if (!localRay) {
             mat4.invert(tmpRayMatrix, this.worldMatrix);
-            mat4.multiply(tmpRayMatrix, tmpRayMatrix, ray.transformMatrix);
+            mat4.multiply(tmpRayMatrix, tmpRayMatrix, rigidTransform.matrix);
             localRay = new Ray(tmpRayMatrix);
           }
           let intersection = localRay.intersectsAABB(primitive._min, primitive._max);
@@ -375,7 +375,7 @@ export class Node {
       }
     }
     for (let child of this.children) {
-      let intersection = child._hitTestSelectableNode(ray);
+      let intersection = child._hitTestSelectableNode(rigidTransform);
       if (intersection) {
         return intersection;
       }
@@ -383,11 +383,12 @@ export class Node {
     return null;
   }
 
-  hitTest(ray) {
+  hitTest(rigidTransform) {
     if (this.selectable && this.visible) {
-      let intersection = this._hitTestSelectableNode(ray);
+      let intersection = this._hitTestSelectableNode(rigidTransform);
 
       if (intersection) {
+        let ray = new Ray(rigidTransform.matrix);
         let origin = vec3.fromValues(ray.origin.x, ray.origin.y, ray.origin.z);
         return {
           node: this,
@@ -400,7 +401,7 @@ export class Node {
 
     let result = null;
     for (let child of this.children) {
-      let childResult = child.hitTest(ray);
+      let childResult = child.hitTest(rigidTransform);
       if (childResult) {
         if (!result || result.distance > childResult.distance) {
           result = childResult;
diff --git a/js/cottontail/src/core/primitive.js b/js/render/core/primitive.js
similarity index 100%
rename from js/cottontail/src/core/primitive.js
rename to js/render/core/primitive.js
diff --git a/js/cottontail/src/core/program.js b/js/render/core/program.js
similarity index 100%
rename from js/cottontail/src/core/program.js
rename to js/render/core/program.js
diff --git a/js/cottontail/src/core/renderer.js b/js/render/core/renderer.js
similarity index 97%
rename from js/cottontail/src/core/renderer.js
rename to js/render/core/renderer.js
index 661eb2bfc..9a14c8859 100644
--- a/js/cottontail/src/core/renderer.js
+++ b/js/render/core/renderer.js
@@ -99,13 +99,31 @@ export function createWebGLContext(glAttribs) {
 }
 
 export class RenderView {
-  constructor(projectionMatrix, viewMatrix, viewport = null, eye = 'left') {
+  constructor(projectionMatrix, viewTransform, viewport = null, eye = 'left') {
     this.projectionMatrix = projectionMatrix;
-    this.viewMatrix = viewMatrix;
+    this.viewTransform = viewTransform;
     this.viewport = viewport;
     // If an eye isn't given the left eye is assumed.
     this._eye = eye;
     this._eyeIndex = (eye == 'left' ? 0 : 1);
+
+    // Compute the view matrix
+    this._viewMatrix = mat4.create();
+    let q = viewTransform.orientation;
+    let t = viewTransform.position;
+    mat4.fromRotationTranslation(
+        this._viewMatrix,
+        [q.x, q.y, q.z, q.w],
+        [t.x, t.y, t.z]
+    );
+    mat4.invert(this._viewMatrix, this._viewMatrix);
+    
+    // Alternative view matrix code path
+    //this._viewMatrix = viewTransform.inverse().matrix;
+  }
+
+  get viewMatrix() {
+    return this._viewMatrix;
   }
 
   get eye() {
@@ -610,14 +628,18 @@ export class Renderer {
 
     // Get the positions of the 'camera' for each view matrix.
     for (let i = 0; i < views.length; ++i) {
-      mat4.invert(inverseMatrix, views[i].viewMatrix);
-
       if (this._cameraPositions.length <= i) {
         this._cameraPositions.push(vec3.create());
       }
+      let p = views[i].viewTransform.position;
+      this._cameraPositions[i][0] = p.x;
+      this._cameraPositions[i][1] = p.y;
+      this._cameraPositions[i][2] = p.z;
+
+      /*mat4.invert(inverseMatrix, views[i].viewMatrix);
       let cameraPosition = this._cameraPositions[i];
       vec3.set(cameraPosition, 0, 0, 0);
-      vec3.transformMat4(cameraPosition, cameraPosition, inverseMatrix);
+      vec3.transformMat4(cameraPosition, cameraPosition, inverseMatrix);*/
     }
 
     // Draw each set of render primitives in order
diff --git a/js/cottontail/src/core/texture.js b/js/render/core/texture.js
similarity index 100%
rename from js/cottontail/src/core/texture.js
rename to js/render/core/texture.js
diff --git a/js/cottontail/src/geometry/box-builder.js b/js/render/geometry/box-builder.js
similarity index 100%
rename from js/cottontail/src/geometry/box-builder.js
rename to js/render/geometry/box-builder.js
diff --git a/js/cottontail/src/geometry/cone-builder.js b/js/render/geometry/cone-builder.js
similarity index 100%
rename from js/cottontail/src/geometry/cone-builder.js
rename to js/render/geometry/cone-builder.js
diff --git a/js/cottontail/src/geometry/primitive-stream.js b/js/render/geometry/primitive-stream.js
similarity index 100%
rename from js/cottontail/src/geometry/primitive-stream.js
rename to js/render/geometry/primitive-stream.js
diff --git a/js/cottontail/src/loaders/gltf2.js b/js/render/loaders/gltf2.js
similarity index 100%
rename from js/cottontail/src/loaders/gltf2.js
rename to js/render/loaders/gltf2.js
diff --git a/js/cottontail/src/materials/pbr.js b/js/render/materials/pbr.js
similarity index 100%
rename from js/cottontail/src/materials/pbr.js
rename to js/render/materials/pbr.js
diff --git a/js/cottontail/src/math/gl-matrix.js b/js/render/math/gl-matrix.js
similarity index 61%
rename from js/cottontail/src/math/gl-matrix.js
rename to js/render/math/gl-matrix.js
index fbd22d39c..045648855 100644
--- a/js/cottontail/src/math/gl-matrix.js
+++ b/js/render/math/gl-matrix.js
@@ -18,16 +18,16 @@
 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 // SOFTWARE.
 
-import * as glMatrix from '../../node_modules/gl-matrix/src/gl-matrix/common.js';
-import * as mat2 from '../../node_modules/gl-matrix/src/gl-matrix/mat2.js';
-import * as mat2d from '../../node_modules/gl-matrix/src/gl-matrix/mat2d.js';
-import * as mat3 from '../../node_modules/gl-matrix/src/gl-matrix/mat3.js';
-import * as mat4 from '../../node_modules/gl-matrix/src/gl-matrix/mat4.js';
-import * as quat from '../../node_modules/gl-matrix/src/gl-matrix/quat.js';
-import * as quat2 from '../../node_modules/gl-matrix/src/gl-matrix/quat2.js';
-import * as vec2 from '../../node_modules/gl-matrix/src/gl-matrix/vec2.js';
-import * as vec3 from '../../node_modules/gl-matrix/src/gl-matrix/vec3.js';
-import * as vec4 from '../../node_modules/gl-matrix/src/gl-matrix/vec4.js';
+import * as glMatrix from '../../third-party/gl-matrix/src/gl-matrix/common.js';
+import * as mat2 from '../../third-party/gl-matrix/src/gl-matrix/mat2.js';
+import * as mat2d from '../../third-party/gl-matrix/src/gl-matrix/mat2d.js';
+import * as mat3 from '../../third-party/gl-matrix/src/gl-matrix/mat3.js';
+import * as mat4 from '../../third-party/gl-matrix/src/gl-matrix/mat4.js';
+import * as quat from '../../third-party/gl-matrix/src/gl-matrix/quat.js';
+import * as quat2 from '../../third-party/gl-matrix/src/gl-matrix/quat2.js';
+import * as vec2 from '../../third-party/gl-matrix/src/gl-matrix/vec2.js';
+import * as vec3 from '../../third-party/gl-matrix/src/gl-matrix/vec3.js';
+import * as vec4 from '../../third-party/gl-matrix/src/gl-matrix/vec4.js';
 
 export {
   glMatrix,
diff --git a/js/cottontail/src/math/ray.js b/js/render/math/ray.js
similarity index 97%
rename from js/cottontail/src/math/ray.js
rename to js/render/math/ray.js
index 3ece441d9..ceb5daf05 100644
--- a/js/cottontail/src/math/ray.js
+++ b/js/render/math/ray.js
@@ -38,14 +38,14 @@ export class Ray {
     }
 
     // To force the inverse and sign calculations.
-    this.dir = this._dir;
+    this.direction = this._dir;
   }
 
-  get dir() {
+  get direction() {
     return this._dir;
   }
 
-  set dir(value) {
+  set direction(value) {
     this._dir = vec3.copy(this._dir, value);
     vec3.normalize(this._dir, this._dir);
 
diff --git a/js/cottontail/src/nodes/bounds-renderer.js b/js/render/nodes/bounds-renderer.js
similarity index 69%
rename from js/cottontail/src/nodes/bounds-renderer.js
rename to js/render/nodes/bounds-renderer.js
index 081efa14d..5fc68908f 100644
--- a/js/cottontail/src/nodes/bounds-renderer.js
+++ b/js/render/nodes/bounds-renderer.js
@@ -19,13 +19,13 @@
 // SOFTWARE.
 
 /*
-This file renders a passed in XRStageBounds object and attempts
+This file renders a passed in XRBoundedReferenceSpace object and attempts
 to render geometry on the floor to indicate where the bounds is.
-XRStageBounds' `geometry` is a series of XRStageBoundsPoints (in
-clockwise-order) with `x` and `z` properties for each.
+The bounds `geometry` is a series of DOMPointReadOnlys in
+clockwise-order.
 */
 
-import {Material} from '../core/material.js';
+import {Material, RENDER_ORDER} from '../core/material.js';
 import {Node} from '../core/node.js';
 import {Primitive, PrimitiveAttribute} from '../core/primitive.js';
 
@@ -35,10 +35,12 @@ class BoundsMaterial extends Material {
   constructor() {
     super();
 
+    this.renderOrder = RENDER_ORDER.ADDITIVE;
     this.state.blend = true;
     this.state.blendFuncSrc = GL.SRC_ALPHA;
     this.state.blendFuncDst = GL.ONE;
     this.state.depthTest = false;
+    this.state.cullFace = false;
   }
 
   get materialName() {
@@ -47,9 +49,10 @@ class BoundsMaterial extends Material {
 
   get vertexSource() {
     return `
-    attribute vec2 POSITION;
-
+    attribute vec3 POSITION;
+    varying vec3 v_pos;
     vec4 vertex_main(mat4 proj, mat4 view, mat4 model) {
+      v_pos = POSITION;
       return proj * view * model * vec4(POSITION, 1.0);
     }`;
   }
@@ -57,50 +60,62 @@ class BoundsMaterial extends Material {
   get fragmentSource() {
     return `
     precision mediump float;
-
+    varying vec3 v_pos;
     vec4 fragment_main() {
-      return vec4(0.0, 1.0, 0.0, 0.3);
+      return vec4(0.0, 1.0, 0.0, (2.0 - v_pos.y) * 0.5);
     }`;
   }
 }
 
 export class BoundsRenderer extends Node {
-  constructor() {
+  constructor(boundedRefSpace) {
     super();
 
-    this._stageBounds = null;
+    this._boundedRefSpace = boundedRefSpace;
   }
 
   onRendererChanged(renderer) {
-    this.stageBounds = this._stageBounds;
+    this.boundedRefSpace = this._boundedRefSpace;
   }
 
-  get stageBounds() {
-    return this._stageBounds;
+  get boundedRefSpace() {
+    return this._boundedRefSpace;
   }
 
-  set stageBounds(stageBounds) {
-    if (this._stageBounds) {
+  set boundedRefSpace(refSpace) {
+    if (this._boundedRefSpace) {
       this.clearRenderPrimitives();
     }
-    this._stageBounds = stageBounds;
-    if (!stageBounds || stageBounds.length === 0 || !this._renderer) {
+    this._boundedRefSpace = refSpace;
+    if (!refSpace || refSpace.boundsGeometry.length === 0 || !this._renderer) {
       return;
     }
 
+    let geometry = refSpace.boundsGeometry;
+
     let verts = [];
     let indices = [];
 
     // Tessellate the bounding points from XRStageBounds and connect
     // each point to a neighbor and 0,0,0.
-    const pointCount = stageBounds.geometry.length;
+    const pointCount = geometry.length;
+    let lastIndex = -1;
     for (let i = 0; i < pointCount; i++) {
-      const point = stageBounds.geometry[i];
+      const point = geometry[i];
       verts.push(point.x, 0, point.z);
-      indices.push(i, i === 0 ? pointCount - 1 : i - 1, pointCount);
+      verts.push(point.x, 2.0, point.z);
+
+      lastIndex += 2;
+      if (i > 0) {
+        indices.push(lastIndex, lastIndex-1, lastIndex-2);
+        indices.push(lastIndex-2, lastIndex-1, lastIndex-3);
+      }
+    }
+
+    if (pointCount > 1) {
+      indices.push(1, 0, lastIndex);
+      indices.push(lastIndex, 0, lastIndex-1);
     }
-    // Center point
-    verts.push(0, 0, 0);
 
     let vertexBuffer = this._renderer.createRenderBuffer(GL.ARRAY_BUFFER, new Float32Array(verts));
     let indexBuffer = this._renderer.createRenderBuffer(GL.ELEMENT_ARRAY_BUFFER, new Uint16Array(indices));
diff --git a/js/cottontail/src/nodes/button.js b/js/render/nodes/button.js
similarity index 100%
rename from js/cottontail/src/nodes/button.js
rename to js/render/nodes/button.js
diff --git a/js/cottontail/src/nodes/cube-sea.js b/js/render/nodes/cube-sea.js
similarity index 100%
rename from js/cottontail/src/nodes/cube-sea.js
rename to js/render/nodes/cube-sea.js
diff --git a/js/cottontail/src/nodes/drop-shadow.js b/js/render/nodes/drop-shadow.js
similarity index 100%
rename from js/cottontail/src/nodes/drop-shadow.js
rename to js/render/nodes/drop-shadow.js
diff --git a/js/cottontail/src/nodes/gltf2.js b/js/render/nodes/gltf2.js
similarity index 100%
rename from js/cottontail/src/nodes/gltf2.js
rename to js/render/nodes/gltf2.js
diff --git a/js/cottontail/src/nodes/input-renderer.js b/js/render/nodes/input-renderer.js
similarity index 99%
rename from js/cottontail/src/nodes/input-renderer.js
rename to js/render/nodes/input-renderer.js
index fd89982d0..46235b1b1 100644
--- a/js/cottontail/src/nodes/input-renderer.js
+++ b/js/render/nodes/input-renderer.js
@@ -260,7 +260,7 @@ export class InputRenderer extends Node {
     controller.visible = true;
   }
 
-  addLaserPointer(targetRay) {
+  addLaserPointer(rigidTransform) {
     // Create the laser pointer mesh if needed.
     if (!this._lasers && this._renderer) {
       this._lasers = [this._createLaserMesh()];
@@ -277,7 +277,7 @@ export class InputRenderer extends Node {
     }
     this._activeLasers = (this._activeLasers + 1) % this._maxInputElements;
 
-    laser.matrix = targetRay.transformMatrix;
+    laser.matrix = rigidTransform.matrix;
     laser.visible = true;
   }
 
diff --git a/js/cottontail/src/nodes/seven-segment-text.js b/js/render/nodes/seven-segment-text.js
similarity index 100%
rename from js/cottontail/src/nodes/seven-segment-text.js
rename to js/render/nodes/seven-segment-text.js
diff --git a/js/cottontail/src/nodes/skybox.js b/js/render/nodes/skybox.js
similarity index 100%
rename from js/cottontail/src/nodes/skybox.js
rename to js/render/nodes/skybox.js
diff --git a/js/cottontail/src/nodes/stats-viewer.js b/js/render/nodes/stats-viewer.js
similarity index 100%
rename from js/cottontail/src/nodes/stats-viewer.js
rename to js/render/nodes/stats-viewer.js
diff --git a/js/cottontail/src/nodes/video.js b/js/render/nodes/video.js
similarity index 100%
rename from js/cottontail/src/nodes/video.js
rename to js/render/nodes/video.js
diff --git a/js/cottontail/src/scenes/scene.js b/js/render/scenes/scene.js
similarity index 66%
rename from js/cottontail/src/scenes/scene.js
rename to js/render/scenes/scene.js
index 4d6e05a8d..60823ddc3 100644
--- a/js/cottontail/src/scenes/scene.js
+++ b/js/render/scenes/scene.js
@@ -23,12 +23,13 @@ import {InputRenderer} from '../nodes/input-renderer.js';
 import {StatsViewer} from '../nodes/stats-viewer.js';
 import {Node} from '../core/node.js';
 import {vec3, quat} from '../math/gl-matrix.js';
+import {Ray} from '../math/ray.js';
 
 export class WebXRView extends RenderView {
-  constructor(view, pose, layer) {
+  constructor(view, layer) {
     super(
       view ? view.projectionMatrix : null,
-      (pose && view) ? view.viewMatrix : null,
+      view ? view.transform : null,
       (layer && view) ? layer.getViewport(view) : null,
       view ? view.eye : 'left'
     );
@@ -80,73 +81,70 @@ export class Scene extends Node {
   // Helper function that automatically adds the appropriate visual elements for
   // all input sources.
   updateInputSources(frame, refSpace) {
-    // FIXME: Check for the existence of the API first. This check should be
-    // removed once the input API is part of the official spec.
-    if (!frame.session.getInputSources) {
-      return;
-    }
-
-    let inputSources = frame.session.getInputSources();
-
     let newHoveredNodes = [];
     let lastHoverFrame = this._hoverFrame;
     this._hoverFrame++;
 
-    for (let inputSource of inputSources) {
-      let inputPose = frame.getInputPose(inputSource, refSpace);
+    for (let inputSource of frame.session.inputSources) {
+      let targetRayPose = frame.getPose(inputSource.targetRaySpace, refSpace);
 
-      if (!inputPose) {
+      if (!targetRayPose) {
         continue;
       }
 
-      // Any time that we have a grip matrix, we'll render a controller.
-      if (inputPose.gripTransform.matrix) {
-        this.inputRenderer.addController(inputPose.gripTransform.matrix);
+      if (inputSource.targetRayMode == 'tracked-pointer') {
+        // If we have a pointer matrix and the pointer origin is the users
+        // hand (as opposed to their head or the screen) use it to render
+        // a ray coming out of the input device to indicate the pointer
+        // direction.
+        this.inputRenderer.addLaserPointer(targetRayPose.transform);
       }
 
-      if (inputPose.targetRay) {
-        if (inputSource.targetRayMode == 'tracked-pointer') {
-          // If we have a pointer matrix and the pointer origin is the users
-          // hand (as opposed to their head or the screen) use it to render
-          // a ray coming out of the input device to indicate the pointer
-          // direction.
-          this.inputRenderer.addLaserPointer(inputPose.targetRay);
+      // If we have a pointer matrix we can also use it to render a cursor
+      // for both handheld and gaze-based input sources.
+
+      // Check and see if the pointer is pointing at any selectable objects.
+      let hitResult = this.hitTest(targetRayPose.transform);
+
+      if (hitResult) {
+        // Render a cursor at the intersection point.
+        this.inputRenderer.addCursor(hitResult.intersection);
+
+        if (hitResult.node._hoverFrameId != lastHoverFrame) {
+          hitResult.node.onHoverStart();
         }
+        hitResult.node._hoverFrameId = this._hoverFrame;
+        newHoveredNodes.push(hitResult.node);
+      } else {
+        // Statically render the cursor 1 meters down the ray since we didn't
+        // hit anything selectable.
+        let targetRay = new Ray(targetRayPose.transform);
+        let cursorDistance = 1.0;
+        let cursorPos = vec3.fromValues(
+            targetRay.origin.x,
+            targetRay.origin.y,
+            targetRay.origin.z
+            );
+        vec3.add(cursorPos, cursorPos, [
+            targetRay.direction.x * cursorDistance,
+            targetRay.direction.y * cursorDistance,
+            targetRay.direction.z * cursorDistance,
+            ]);
+        // let cursorPos = vec3.fromValues(0, 0, -1.0);
+        // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay);
+        this.inputRenderer.addCursor(cursorPos);
+      }
+
+      if (inputSource.gripSpace) {
+        let gripPose = frame.getPose(inputSource.gripSpace, refSpace);
 
-        // If we have a pointer matrix we can also use it to render a cursor
-        // for both handheld and gaze-based input sources.
-
-        // Check and see if the pointer is pointing at any selectable objects.
-        let hitResult = this.hitTest(inputPose.targetRay);
-
-        if (hitResult) {
-          // Render a cursor at the intersection point.
-          this.inputRenderer.addCursor(hitResult.intersection);
-
-          if (hitResult.node._hoverFrameId != lastHoverFrame) {
-            hitResult.node.onHoverStart();
-          }
-          hitResult.node._hoverFrameId = this._hoverFrame;
-          newHoveredNodes.push(hitResult.node);
-        } else {
-          // Statically render the cursor 1 meters down the ray since we didn't
-          // hit anything selectable.
-          let cursorDistance = 1.0;
-          let cursorPos = vec3.fromValues(
-              inputPose.targetRay.origin.x,
-              inputPose.targetRay.origin.y,
-              inputPose.targetRay.origin.z
-              );
-          vec3.add(cursorPos, cursorPos, [
-              inputPose.targetRay.direction.x * cursorDistance,
-              inputPose.targetRay.direction.y * cursorDistance,
-              inputPose.targetRay.direction.z * cursorDistance,
-              ]);
-          // let cursorPos = vec3.fromValues(0, 0, -1.0);
-          // vec3.transformMat4(cursorPos, cursorPos, inputPose.targetRay);
-          this.inputRenderer.addCursor(cursorPos);
+        // Any time that we have a grip matrix, we'll render a controller.
+        if (gripPose) {
+          this.inputRenderer.addController(gripPose.transform.matrix);
         }
       }
+      
+
     }
 
     for (let hoverNode of this._hoveredNodes) {
@@ -159,19 +157,19 @@ export class Scene extends Node {
   }
 
   handleSelect(inputSource, frame, refSpace) {
-    let inputPose = frame.getInputPose(inputSource, refSpace);
+    let targetRayPose = frame.getPose(inputSource.targetRaySpace, refSpace);
 
-    if (!inputPose) {
+    if (!targetRayPose) {
       return;
     }
 
-    this.handleSelectPointer(inputPose.targetRay);
+    this.handleSelectPointer(targetRayPose.transform);
   }
 
-  handleSelectPointer(targetRay) {
-    if (targetRay) {
+  handleSelectPointer(rigidTransform) {
+    if (rigidTransform) {
       // Check and see if the pointer is pointing at any selectable objects.
-      let hitResult = this.hitTest(targetRay);
+      let hitResult = this.hitTest(rigidTransform);
 
       if (hitResult) {
         // Render a cursor at the intersection point.
@@ -220,10 +218,8 @@ export class Scene extends Node {
     }
   }
 
-  draw(projectionMatrix, viewMatrix, eye) {
-    let view = new RenderView();
-    view.projectionMatrix = projectionMatrix;
-    view.viewMatrix = viewMatrix;
+  draw(projectionMatrix, viewTransform, eye) {
+    let view = new RenderView(projectionMatrix, viewTransform);
     if (eye) {
       view.eye = eye;
     }
@@ -254,7 +250,7 @@ export class Scene extends Node {
 
     let views = [];
     for (let view of pose.views) {
-      views.push(new WebXRView(view, pose, layer));
+      views.push(new WebXRView(view, layer));
     }
 
     this.drawViewArray(views);
diff --git a/js/third-party/gl-matrix/LICENSE.md b/js/third-party/gl-matrix/LICENSE.md
new file mode 100644
index 000000000..c74d17fa7
--- /dev/null
+++ b/js/third-party/gl-matrix/LICENSE.md
@@ -0,0 +1,19 @@
+Copyright (c) 2015-2018, Brandon Jones, Colin MacKenzie IV.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
\ No newline at end of file
diff --git a/js/third-party/gl-matrix/src/gl-matrix.js b/js/third-party/gl-matrix/src/gl-matrix.js
new file mode 100644
index 000000000..71e0e7170
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix.js
@@ -0,0 +1,17 @@
+import * as glMatrix from "./gl-matrix/common.js";
+import * as mat2 from "./gl-matrix/mat2.js";
+import * as mat2d from "./gl-matrix/mat2d.js";
+import * as mat3 from "./gl-matrix/mat3.js";
+import * as mat4 from "./gl-matrix/mat4.js";
+import * as quat from "./gl-matrix/quat.js";
+import * as quat2 from "./gl-matrix/quat2.js";
+import * as vec2 from "./gl-matrix/vec2.js";
+import * as vec3 from "./gl-matrix/vec3.js";
+import * as vec4 from "./gl-matrix/vec4.js";
+
+export {
+  glMatrix,
+  mat2, mat2d, mat3, mat4,
+  quat, quat2,
+  vec2, vec3, vec4,
+};
diff --git a/js/third-party/gl-matrix/src/gl-matrix/common.js b/js/third-party/gl-matrix/src/gl-matrix/common.js
new file mode 100644
index 000000000..98b19236c
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/common.js
@@ -0,0 +1,42 @@
+/**
+ * Common utilities
+ * @module glMatrix
+ */
+
+// Configuration Constants
+export const EPSILON = 0.000001;
+export let ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;
+export const RANDOM = Math.random;
+
+/**
+ * Sets the type of array used when creating new vectors and matrices
+ *
+ * @param {Type} type Array type, such as Float32Array or Array
+ */
+export function setMatrixArrayType(type) {
+  ARRAY_TYPE = type;
+}
+
+const degree = Math.PI / 180;
+
+/**
+ * Convert Degree To Radian
+ *
+ * @param {Number} a Angle in Degrees
+ */
+export function toRadian(a) {
+  return a * degree;
+}
+
+/**
+ * Tests whether or not the arguments have approximately the same value, within an absolute
+ * or relative tolerance of glMatrix.EPSILON (an absolute tolerance is used for values less
+ * than or equal to 1.0, and a relative tolerance is used for larger values)
+ *
+ * @param {Number} a The first number to test.
+ * @param {Number} b The second number to test.
+ * @returns {Boolean} True if the numbers are approximately equal, false otherwise.
+ */
+export function equals(a, b) {
+  return Math.abs(a - b) <= EPSILON*Math.max(1.0, Math.abs(a), Math.abs(b));
+}
diff --git a/js/third-party/gl-matrix/src/gl-matrix/mat2.js b/js/third-party/gl-matrix/src/gl-matrix/mat2.js
new file mode 100644
index 000000000..50d8e7c95
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/mat2.js
@@ -0,0 +1,415 @@
+import * as glMatrix from "./common.js"
+
+/**
+ * 2x2 Matrix
+ * @module mat2
+ */
+
+/**
+ * Creates a new identity mat2
+ *
+ * @returns {mat2} a new 2x2 matrix
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+  }
+  out[0] = 1;
+  out[3] = 1;
+  return out;
+}
+
+/**
+ * Creates a new mat2 initialized with values from an existing matrix
+ *
+ * @param {mat2} a matrix to clone
+ * @returns {mat2} a new 2x2 matrix
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Copy the values from one mat2 to another
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the source matrix
+ * @returns {mat2} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Set a mat2 to the identity matrix
+ *
+ * @param {mat2} out the receiving matrix
+ * @returns {mat2} out
+ */
+export function identity(out) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  return out;
+}
+
+/**
+ * Create a new mat2 with the given values
+ *
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m10 Component in column 1, row 0 position (index 2)
+ * @param {Number} m11 Component in column 1, row 1 position (index 3)
+ * @returns {mat2} out A new 2x2 matrix
+ */
+export function fromValues(m00, m01, m10, m11) {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m10;
+  out[3] = m11;
+  return out;
+}
+
+/**
+ * Set the components of a mat2 to the given values
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m10 Component in column 1, row 0 position (index 2)
+ * @param {Number} m11 Component in column 1, row 1 position (index 3)
+ * @returns {mat2} out
+ */
+export function set(out, m00, m01, m10, m11) {
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m10;
+  out[3] = m11;
+  return out;
+}
+
+/**
+ * Transpose the values of a mat2
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the source matrix
+ * @returns {mat2} out
+ */
+export function transpose(out, a) {
+  // If we are transposing ourselves we can skip a few steps but have to cache
+  // some values
+  if (out === a) {
+    let a1 = a[1];
+    out[1] = a[2];
+    out[2] = a1;
+  } else {
+    out[0] = a[0];
+    out[1] = a[2];
+    out[2] = a[1];
+    out[3] = a[3];
+  }
+
+  return out;
+}
+
+/**
+ * Inverts a mat2
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the source matrix
+ * @returns {mat2} out
+ */
+export function invert(out, a) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+
+  // Calculate the determinant
+  let det = a0 * a3 - a2 * a1;
+
+  if (!det) {
+    return null;
+  }
+  det = 1.0 / det;
+
+  out[0] =  a3 * det;
+  out[1] = -a1 * det;
+  out[2] = -a2 * det;
+  out[3] =  a0 * det;
+
+  return out;
+}
+
+/**
+ * Calculates the adjugate of a mat2
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the source matrix
+ * @returns {mat2} out
+ */
+export function adjoint(out, a) {
+  // Caching this value is nessecary if out == a
+  let a0 = a[0];
+  out[0] =  a[3];
+  out[1] = -a[1];
+  out[2] = -a[2];
+  out[3] =  a0;
+
+  return out;
+}
+
+/**
+ * Calculates the determinant of a mat2
+ *
+ * @param {mat2} a the source matrix
+ * @returns {Number} determinant of a
+ */
+export function determinant(a) {
+  return a[0] * a[3] - a[2] * a[1];
+}
+
+/**
+ * Multiplies two mat2's
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the first operand
+ * @param {mat2} b the second operand
+ * @returns {mat2} out
+ */
+export function multiply(out, a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
+  out[0] = a0 * b0 + a2 * b1;
+  out[1] = a1 * b0 + a3 * b1;
+  out[2] = a0 * b2 + a2 * b3;
+  out[3] = a1 * b2 + a3 * b3;
+  return out;
+}
+
+/**
+ * Rotates a mat2 by the given angle
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat2} out
+ */
+export function rotate(out, a, rad) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  out[0] = a0 *  c + a2 * s;
+  out[1] = a1 *  c + a3 * s;
+  out[2] = a0 * -s + a2 * c;
+  out[3] = a1 * -s + a3 * c;
+  return out;
+}
+
+/**
+ * Scales the mat2 by the dimensions in the given vec2
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the matrix to rotate
+ * @param {vec2} v the vec2 to scale the matrix by
+ * @returns {mat2} out
+ **/
+export function scale(out, a, v) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let v0 = v[0], v1 = v[1];
+  out[0] = a0 * v0;
+  out[1] = a1 * v0;
+  out[2] = a2 * v1;
+  out[3] = a3 * v1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a given angle
+ * This is equivalent to (but much faster than):
+ *
+ *     mat2.identity(dest);
+ *     mat2.rotate(dest, dest, rad);
+ *
+ * @param {mat2} out mat2 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat2} out
+ */
+export function fromRotation(out, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  out[0] = c;
+  out[1] = s;
+  out[2] = -s;
+  out[3] = c;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector scaling
+ * This is equivalent to (but much faster than):
+ *
+ *     mat2.identity(dest);
+ *     mat2.scale(dest, dest, vec);
+ *
+ * @param {mat2} out mat2 receiving operation result
+ * @param {vec2} v Scaling vector
+ * @returns {mat2} out
+ */
+export function fromScaling(out, v) {
+  out[0] = v[0];
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = v[1];
+  return out;
+}
+
+/**
+ * Returns a string representation of a mat2
+ *
+ * @param {mat2} a matrix to represent as a string
+ * @returns {String} string representation of the matrix
+ */
+export function str(a) {
+  return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
+}
+
+/**
+ * Returns Frobenius norm of a mat2
+ *
+ * @param {mat2} a the matrix to calculate Frobenius norm of
+ * @returns {Number} Frobenius norm
+ */
+export function frob(a) {
+  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))
+}
+
+/**
+ * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix
+ * @param {mat2} L the lower triangular matrix
+ * @param {mat2} D the diagonal matrix
+ * @param {mat2} U the upper triangular matrix
+ * @param {mat2} a the input matrix to factorize
+ */
+
+export function LDU(L, D, U, a) {
+  L[2] = a[2]/a[0];
+  U[0] = a[0];
+  U[1] = a[1];
+  U[3] = a[3] - L[2] * U[1];
+  return [L, D, U];
+}
+
+/**
+ * Adds two mat2's
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the first operand
+ * @param {mat2} b the second operand
+ * @returns {mat2} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  return out;
+}
+
+/**
+ * Subtracts matrix b from matrix a
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the first operand
+ * @param {mat2} b the second operand
+ * @returns {mat2} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  out[3] = a[3] - b[3];
+  return out;
+}
+
+/**
+ * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {mat2} a The first matrix.
+ * @param {mat2} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];
+}
+
+/**
+ * Returns whether or not the matrices have approximately the same elements in the same position.
+ *
+ * @param {mat2} a The first matrix.
+ * @param {mat2} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));
+}
+
+/**
+ * Multiply each element of the matrix by a scalar.
+ *
+ * @param {mat2} out the receiving matrix
+ * @param {mat2} a the matrix to scale
+ * @param {Number} b amount to scale the matrix's elements by
+ * @returns {mat2} out
+ */
+export function multiplyScalar(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  return out;
+}
+
+/**
+ * Adds two mat2's after multiplying each element of the second operand by a scalar value.
+ *
+ * @param {mat2} out the receiving vector
+ * @param {mat2} a the first operand
+ * @param {mat2} b the second operand
+ * @param {Number} scale the amount to scale b's elements by before adding
+ * @returns {mat2} out
+ */
+export function multiplyScalarAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  out[3] = a[3] + (b[3] * scale);
+  return out;
+}
+
+/**
+ * Alias for {@link mat2.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link mat2.subtract}
+ * @function
+ */
+export const sub = subtract;
diff --git a/js/third-party/gl-matrix/src/gl-matrix/mat2d.js b/js/third-party/gl-matrix/src/gl-matrix/mat2d.js
new file mode 100644
index 000000000..fd391e8d4
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/mat2d.js
@@ -0,0 +1,448 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 2x3 Matrix
+ * @module mat2d
+ *
+ * @description
+ * A mat2d contains six elements defined as:
+ * <pre>
+ * [a, c, tx,
+ *  b, d, ty]
+ * </pre>
+ * This is a short form for the 3x3 matrix:
+ * <pre>
+ * [a, c, tx,
+ *  b, d, ty,
+ *  0, 0, 1]
+ * </pre>
+ * The last row is ignored so the array is shorter and operations are faster.
+ */
+
+/**
+ * Creates a new identity mat2d
+ *
+ * @returns {mat2d} a new 2x3 matrix
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(6);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[4] = 0;
+    out[5] = 0;
+  }
+  out[0] = 1;
+  out[3] = 1;
+  return out;
+}
+
+/**
+ * Creates a new mat2d initialized with values from an existing matrix
+ *
+ * @param {mat2d} a matrix to clone
+ * @returns {mat2d} a new 2x3 matrix
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(6);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  return out;
+}
+
+/**
+ * Copy the values from one mat2d to another
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the source matrix
+ * @returns {mat2d} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  return out;
+}
+
+/**
+ * Set a mat2d to the identity matrix
+ *
+ * @param {mat2d} out the receiving matrix
+ * @returns {mat2d} out
+ */
+export function identity(out) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  out[4] = 0;
+  out[5] = 0;
+  return out;
+}
+
+/**
+ * Create a new mat2d with the given values
+ *
+ * @param {Number} a Component A (index 0)
+ * @param {Number} b Component B (index 1)
+ * @param {Number} c Component C (index 2)
+ * @param {Number} d Component D (index 3)
+ * @param {Number} tx Component TX (index 4)
+ * @param {Number} ty Component TY (index 5)
+ * @returns {mat2d} A new mat2d
+ */
+export function fromValues(a, b, c, d, tx, ty) {
+  let out = new glMatrix.ARRAY_TYPE(6);
+  out[0] = a;
+  out[1] = b;
+  out[2] = c;
+  out[3] = d;
+  out[4] = tx;
+  out[5] = ty;
+  return out;
+}
+
+/**
+ * Set the components of a mat2d to the given values
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {Number} a Component A (index 0)
+ * @param {Number} b Component B (index 1)
+ * @param {Number} c Component C (index 2)
+ * @param {Number} d Component D (index 3)
+ * @param {Number} tx Component TX (index 4)
+ * @param {Number} ty Component TY (index 5)
+ * @returns {mat2d} out
+ */
+export function set(out, a, b, c, d, tx, ty) {
+  out[0] = a;
+  out[1] = b;
+  out[2] = c;
+  out[3] = d;
+  out[4] = tx;
+  out[5] = ty;
+  return out;
+}
+
+/**
+ * Inverts a mat2d
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the source matrix
+ * @returns {mat2d} out
+ */
+export function invert(out, a) {
+  let aa = a[0], ab = a[1], ac = a[2], ad = a[3];
+  let atx = a[4], aty = a[5];
+
+  let det = aa * ad - ab * ac;
+  if(!det){
+    return null;
+  }
+  det = 1.0 / det;
+
+  out[0] = ad * det;
+  out[1] = -ab * det;
+  out[2] = -ac * det;
+  out[3] = aa * det;
+  out[4] = (ac * aty - ad * atx) * det;
+  out[5] = (ab * atx - aa * aty) * det;
+  return out;
+}
+
+/**
+ * Calculates the determinant of a mat2d
+ *
+ * @param {mat2d} a the source matrix
+ * @returns {Number} determinant of a
+ */
+export function determinant(a) {
+  return a[0] * a[3] - a[1] * a[2];
+}
+
+/**
+ * Multiplies two mat2d's
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the first operand
+ * @param {mat2d} b the second operand
+ * @returns {mat2d} out
+ */
+export function multiply(out, a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
+  out[0] = a0 * b0 + a2 * b1;
+  out[1] = a1 * b0 + a3 * b1;
+  out[2] = a0 * b2 + a2 * b3;
+  out[3] = a1 * b2 + a3 * b3;
+  out[4] = a0 * b4 + a2 * b5 + a4;
+  out[5] = a1 * b4 + a3 * b5 + a5;
+  return out;
+}
+
+/**
+ * Rotates a mat2d by the given angle
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat2d} out
+ */
+export function rotate(out, a, rad) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  out[0] = a0 *  c + a2 * s;
+  out[1] = a1 *  c + a3 * s;
+  out[2] = a0 * -s + a2 * c;
+  out[3] = a1 * -s + a3 * c;
+  out[4] = a4;
+  out[5] = a5;
+  return out;
+}
+
+/**
+ * Scales the mat2d by the dimensions in the given vec2
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the matrix to translate
+ * @param {vec2} v the vec2 to scale the matrix by
+ * @returns {mat2d} out
+ **/
+export function scale(out, a, v) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
+  let v0 = v[0], v1 = v[1];
+  out[0] = a0 * v0;
+  out[1] = a1 * v0;
+  out[2] = a2 * v1;
+  out[3] = a3 * v1;
+  out[4] = a4;
+  out[5] = a5;
+  return out;
+}
+
+/**
+ * Translates the mat2d by the dimensions in the given vec2
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the matrix to translate
+ * @param {vec2} v the vec2 to translate the matrix by
+ * @returns {mat2d} out
+ **/
+export function translate(out, a, v) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
+  let v0 = v[0], v1 = v[1];
+  out[0] = a0;
+  out[1] = a1;
+  out[2] = a2;
+  out[3] = a3;
+  out[4] = a0 * v0 + a2 * v1 + a4;
+  out[5] = a1 * v0 + a3 * v1 + a5;
+  return out;
+}
+
+/**
+ * Creates a matrix from a given angle
+ * This is equivalent to (but much faster than):
+ *
+ *     mat2d.identity(dest);
+ *     mat2d.rotate(dest, dest, rad);
+ *
+ * @param {mat2d} out mat2d receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat2d} out
+ */
+export function fromRotation(out, rad) {
+  let s = Math.sin(rad), c = Math.cos(rad);
+  out[0] = c;
+  out[1] = s;
+  out[2] = -s;
+  out[3] = c;
+  out[4] = 0;
+  out[5] = 0;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector scaling
+ * This is equivalent to (but much faster than):
+ *
+ *     mat2d.identity(dest);
+ *     mat2d.scale(dest, dest, vec);
+ *
+ * @param {mat2d} out mat2d receiving operation result
+ * @param {vec2} v Scaling vector
+ * @returns {mat2d} out
+ */
+export function fromScaling(out, v) {
+  out[0] = v[0];
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = v[1];
+  out[4] = 0;
+  out[5] = 0;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector translation
+ * This is equivalent to (but much faster than):
+ *
+ *     mat2d.identity(dest);
+ *     mat2d.translate(dest, dest, vec);
+ *
+ * @param {mat2d} out mat2d receiving operation result
+ * @param {vec2} v Translation vector
+ * @returns {mat2d} out
+ */
+export function fromTranslation(out, v) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  out[4] = v[0];
+  out[5] = v[1];
+  return out;
+}
+
+/**
+ * Returns a string representation of a mat2d
+ *
+ * @param {mat2d} a matrix to represent as a string
+ * @returns {String} string representation of the matrix
+ */
+export function str(a) {
+  return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +
+          a[3] + ', ' + a[4] + ', ' + a[5] + ')';
+}
+
+/**
+ * Returns Frobenius norm of a mat2d
+ *
+ * @param {mat2d} a the matrix to calculate Frobenius norm of
+ * @returns {Number} Frobenius norm
+ */
+export function frob(a) {
+  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))
+}
+
+/**
+ * Adds two mat2d's
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the first operand
+ * @param {mat2d} b the second operand
+ * @returns {mat2d} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  out[4] = a[4] + b[4];
+  out[5] = a[5] + b[5];
+  return out;
+}
+
+/**
+ * Subtracts matrix b from matrix a
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the first operand
+ * @param {mat2d} b the second operand
+ * @returns {mat2d} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  out[3] = a[3] - b[3];
+  out[4] = a[4] - b[4];
+  out[5] = a[5] - b[5];
+  return out;
+}
+
+/**
+ * Multiply each element of the matrix by a scalar.
+ *
+ * @param {mat2d} out the receiving matrix
+ * @param {mat2d} a the matrix to scale
+ * @param {Number} b amount to scale the matrix's elements by
+ * @returns {mat2d} out
+ */
+export function multiplyScalar(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  out[4] = a[4] * b;
+  out[5] = a[5] * b;
+  return out;
+}
+
+/**
+ * Adds two mat2d's after multiplying each element of the second operand by a scalar value.
+ *
+ * @param {mat2d} out the receiving vector
+ * @param {mat2d} a the first operand
+ * @param {mat2d} b the second operand
+ * @param {Number} scale the amount to scale b's elements by before adding
+ * @returns {mat2d} out
+ */
+export function multiplyScalarAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  out[3] = a[3] + (b[3] * scale);
+  out[4] = a[4] + (b[4] * scale);
+  out[5] = a[5] + (b[5] * scale);
+  return out;
+}
+
+/**
+ * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {mat2d} a The first matrix.
+ * @param {mat2d} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] && a[4] === b[4] && a[5] === b[5];
+}
+
+/**
+ * Returns whether or not the matrices have approximately the same elements in the same position.
+ *
+ * @param {mat2d} a The first matrix.
+ * @param {mat2d} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
+          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
+          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)));
+}
+
+/**
+ * Alias for {@link mat2d.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link mat2d.subtract}
+ * @function
+ */
+export const sub = subtract;
diff --git a/js/third-party/gl-matrix/src/gl-matrix/mat3.js b/js/third-party/gl-matrix/src/gl-matrix/mat3.js
new file mode 100644
index 000000000..47330c932
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/mat3.js
@@ -0,0 +1,747 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 3x3 Matrix
+ * @module mat3
+ */
+
+/**
+ * Creates a new identity mat3
+ *
+ * @returns {mat3} a new 3x3 matrix
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(9);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[5] = 0;
+    out[6] = 0;
+    out[7] = 0;
+  }
+  out[0] = 1;
+  out[4] = 1;
+  out[8] = 1;
+  return out;
+}
+
+/**
+ * Copies the upper-left 3x3 values into the given mat3.
+ *
+ * @param {mat3} out the receiving 3x3 matrix
+ * @param {mat4} a   the source 4x4 matrix
+ * @returns {mat3} out
+ */
+export function fromMat4(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[4];
+  out[4] = a[5];
+  out[5] = a[6];
+  out[6] = a[8];
+  out[7] = a[9];
+  out[8] = a[10];
+  return out;
+}
+
+/**
+ * Creates a new mat3 initialized with values from an existing matrix
+ *
+ * @param {mat3} a matrix to clone
+ * @returns {mat3} a new 3x3 matrix
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(9);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  out[6] = a[6];
+  out[7] = a[7];
+  out[8] = a[8];
+  return out;
+}
+
+/**
+ * Copy the values from one mat3 to another
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the source matrix
+ * @returns {mat3} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  out[6] = a[6];
+  out[7] = a[7];
+  out[8] = a[8];
+  return out;
+}
+
+/**
+ * Create a new mat3 with the given values
+ *
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m02 Component in column 0, row 2 position (index 2)
+ * @param {Number} m10 Component in column 1, row 0 position (index 3)
+ * @param {Number} m11 Component in column 1, row 1 position (index 4)
+ * @param {Number} m12 Component in column 1, row 2 position (index 5)
+ * @param {Number} m20 Component in column 2, row 0 position (index 6)
+ * @param {Number} m21 Component in column 2, row 1 position (index 7)
+ * @param {Number} m22 Component in column 2, row 2 position (index 8)
+ * @returns {mat3} A new mat3
+ */
+export function fromValues(m00, m01, m02, m10, m11, m12, m20, m21, m22) {
+  let out = new glMatrix.ARRAY_TYPE(9);
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m02;
+  out[3] = m10;
+  out[4] = m11;
+  out[5] = m12;
+  out[6] = m20;
+  out[7] = m21;
+  out[8] = m22;
+  return out;
+}
+
+/**
+ * Set the components of a mat3 to the given values
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m02 Component in column 0, row 2 position (index 2)
+ * @param {Number} m10 Component in column 1, row 0 position (index 3)
+ * @param {Number} m11 Component in column 1, row 1 position (index 4)
+ * @param {Number} m12 Component in column 1, row 2 position (index 5)
+ * @param {Number} m20 Component in column 2, row 0 position (index 6)
+ * @param {Number} m21 Component in column 2, row 1 position (index 7)
+ * @param {Number} m22 Component in column 2, row 2 position (index 8)
+ * @returns {mat3} out
+ */
+export function set(out, m00, m01, m02, m10, m11, m12, m20, m21, m22) {
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m02;
+  out[3] = m10;
+  out[4] = m11;
+  out[5] = m12;
+  out[6] = m20;
+  out[7] = m21;
+  out[8] = m22;
+  return out;
+}
+
+/**
+ * Set a mat3 to the identity matrix
+ *
+ * @param {mat3} out the receiving matrix
+ * @returns {mat3} out
+ */
+export function identity(out) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 1;
+  out[5] = 0;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 1;
+  return out;
+}
+
+/**
+ * Transpose the values of a mat3
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the source matrix
+ * @returns {mat3} out
+ */
+export function transpose(out, a) {
+  // If we are transposing ourselves we can skip a few steps but have to cache some values
+  if (out === a) {
+    let a01 = a[1], a02 = a[2], a12 = a[5];
+    out[1] = a[3];
+    out[2] = a[6];
+    out[3] = a01;
+    out[5] = a[7];
+    out[6] = a02;
+    out[7] = a12;
+  } else {
+    out[0] = a[0];
+    out[1] = a[3];
+    out[2] = a[6];
+    out[3] = a[1];
+    out[4] = a[4];
+    out[5] = a[7];
+    out[6] = a[2];
+    out[7] = a[5];
+    out[8] = a[8];
+  }
+
+  return out;
+}
+
+/**
+ * Inverts a mat3
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the source matrix
+ * @returns {mat3} out
+ */
+export function invert(out, a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2];
+  let a10 = a[3], a11 = a[4], a12 = a[5];
+  let a20 = a[6], a21 = a[7], a22 = a[8];
+
+  let b01 = a22 * a11 - a12 * a21;
+  let b11 = -a22 * a10 + a12 * a20;
+  let b21 = a21 * a10 - a11 * a20;
+
+  // Calculate the determinant
+  let det = a00 * b01 + a01 * b11 + a02 * b21;
+
+  if (!det) {
+    return null;
+  }
+  det = 1.0 / det;
+
+  out[0] = b01 * det;
+  out[1] = (-a22 * a01 + a02 * a21) * det;
+  out[2] = (a12 * a01 - a02 * a11) * det;
+  out[3] = b11 * det;
+  out[4] = (a22 * a00 - a02 * a20) * det;
+  out[5] = (-a12 * a00 + a02 * a10) * det;
+  out[6] = b21 * det;
+  out[7] = (-a21 * a00 + a01 * a20) * det;
+  out[8] = (a11 * a00 - a01 * a10) * det;
+  return out;
+}
+
+/**
+ * Calculates the adjugate of a mat3
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the source matrix
+ * @returns {mat3} out
+ */
+export function adjoint(out, a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2];
+  let a10 = a[3], a11 = a[4], a12 = a[5];
+  let a20 = a[6], a21 = a[7], a22 = a[8];
+
+  out[0] = (a11 * a22 - a12 * a21);
+  out[1] = (a02 * a21 - a01 * a22);
+  out[2] = (a01 * a12 - a02 * a11);
+  out[3] = (a12 * a20 - a10 * a22);
+  out[4] = (a00 * a22 - a02 * a20);
+  out[5] = (a02 * a10 - a00 * a12);
+  out[6] = (a10 * a21 - a11 * a20);
+  out[7] = (a01 * a20 - a00 * a21);
+  out[8] = (a00 * a11 - a01 * a10);
+  return out;
+}
+
+/**
+ * Calculates the determinant of a mat3
+ *
+ * @param {mat3} a the source matrix
+ * @returns {Number} determinant of a
+ */
+export function determinant(a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2];
+  let a10 = a[3], a11 = a[4], a12 = a[5];
+  let a20 = a[6], a21 = a[7], a22 = a[8];
+
+  return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);
+}
+
+/**
+ * Multiplies two mat3's
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the first operand
+ * @param {mat3} b the second operand
+ * @returns {mat3} out
+ */
+export function multiply(out, a, b) {
+  let a00 = a[0], a01 = a[1], a02 = a[2];
+  let a10 = a[3], a11 = a[4], a12 = a[5];
+  let a20 = a[6], a21 = a[7], a22 = a[8];
+
+  let b00 = b[0], b01 = b[1], b02 = b[2];
+  let b10 = b[3], b11 = b[4], b12 = b[5];
+  let b20 = b[6], b21 = b[7], b22 = b[8];
+
+  out[0] = b00 * a00 + b01 * a10 + b02 * a20;
+  out[1] = b00 * a01 + b01 * a11 + b02 * a21;
+  out[2] = b00 * a02 + b01 * a12 + b02 * a22;
+
+  out[3] = b10 * a00 + b11 * a10 + b12 * a20;
+  out[4] = b10 * a01 + b11 * a11 + b12 * a21;
+  out[5] = b10 * a02 + b11 * a12 + b12 * a22;
+
+  out[6] = b20 * a00 + b21 * a10 + b22 * a20;
+  out[7] = b20 * a01 + b21 * a11 + b22 * a21;
+  out[8] = b20 * a02 + b21 * a12 + b22 * a22;
+  return out;
+}
+
+/**
+ * Translate a mat3 by the given vector
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the matrix to translate
+ * @param {vec2} v vector to translate by
+ * @returns {mat3} out
+ */
+export function translate(out, a, v) {
+  let a00 = a[0], a01 = a[1], a02 = a[2],
+    a10 = a[3], a11 = a[4], a12 = a[5],
+    a20 = a[6], a21 = a[7], a22 = a[8],
+    x = v[0], y = v[1];
+
+  out[0] = a00;
+  out[1] = a01;
+  out[2] = a02;
+
+  out[3] = a10;
+  out[4] = a11;
+  out[5] = a12;
+
+  out[6] = x * a00 + y * a10 + a20;
+  out[7] = x * a01 + y * a11 + a21;
+  out[8] = x * a02 + y * a12 + a22;
+  return out;
+}
+
+/**
+ * Rotates a mat3 by the given angle
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat3} out
+ */
+export function rotate(out, a, rad) {
+  let a00 = a[0], a01 = a[1], a02 = a[2],
+    a10 = a[3], a11 = a[4], a12 = a[5],
+    a20 = a[6], a21 = a[7], a22 = a[8],
+
+    s = Math.sin(rad),
+    c = Math.cos(rad);
+
+  out[0] = c * a00 + s * a10;
+  out[1] = c * a01 + s * a11;
+  out[2] = c * a02 + s * a12;
+
+  out[3] = c * a10 - s * a00;
+  out[4] = c * a11 - s * a01;
+  out[5] = c * a12 - s * a02;
+
+  out[6] = a20;
+  out[7] = a21;
+  out[8] = a22;
+  return out;
+};
+
+/**
+ * Scales the mat3 by the dimensions in the given vec2
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the matrix to rotate
+ * @param {vec2} v the vec2 to scale the matrix by
+ * @returns {mat3} out
+ **/
+export function scale(out, a, v) {
+  let x = v[0], y = v[1];
+
+  out[0] = x * a[0];
+  out[1] = x * a[1];
+  out[2] = x * a[2];
+
+  out[3] = y * a[3];
+  out[4] = y * a[4];
+  out[5] = y * a[5];
+
+  out[6] = a[6];
+  out[7] = a[7];
+  out[8] = a[8];
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector translation
+ * This is equivalent to (but much faster than):
+ *
+ *     mat3.identity(dest);
+ *     mat3.translate(dest, dest, vec);
+ *
+ * @param {mat3} out mat3 receiving operation result
+ * @param {vec2} v Translation vector
+ * @returns {mat3} out
+ */
+export function fromTranslation(out, v) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 1;
+  out[5] = 0;
+  out[6] = v[0];
+  out[7] = v[1];
+  out[8] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a given angle
+ * This is equivalent to (but much faster than):
+ *
+ *     mat3.identity(dest);
+ *     mat3.rotate(dest, dest, rad);
+ *
+ * @param {mat3} out mat3 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat3} out
+ */
+export function fromRotation(out, rad) {
+  let s = Math.sin(rad), c = Math.cos(rad);
+
+  out[0] = c;
+  out[1] = s;
+  out[2] = 0;
+
+  out[3] = -s;
+  out[4] = c;
+  out[5] = 0;
+
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector scaling
+ * This is equivalent to (but much faster than):
+ *
+ *     mat3.identity(dest);
+ *     mat3.scale(dest, dest, vec);
+ *
+ * @param {mat3} out mat3 receiving operation result
+ * @param {vec2} v Scaling vector
+ * @returns {mat3} out
+ */
+export function fromScaling(out, v) {
+  out[0] = v[0];
+  out[1] = 0;
+  out[2] = 0;
+
+  out[3] = 0;
+  out[4] = v[1];
+  out[5] = 0;
+
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 1;
+  return out;
+}
+
+/**
+ * Copies the values from a mat2d into a mat3
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat2d} a the matrix to copy
+ * @returns {mat3} out
+ **/
+export function fromMat2d(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = 0;
+
+  out[3] = a[2];
+  out[4] = a[3];
+  out[5] = 0;
+
+  out[6] = a[4];
+  out[7] = a[5];
+  out[8] = 1;
+  return out;
+}
+
+/**
+* Calculates a 3x3 matrix from the given quaternion
+*
+* @param {mat3} out mat3 receiving operation result
+* @param {quat} q Quaternion to create matrix from
+*
+* @returns {mat3} out
+*/
+export function fromQuat(out, q) {
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+
+  let xx = x * x2;
+  let yx = y * x2;
+  let yy = y * y2;
+  let zx = z * x2;
+  let zy = z * y2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
+
+  out[0] = 1 - yy - zz;
+  out[3] = yx - wz;
+  out[6] = zx + wy;
+
+  out[1] = yx + wz;
+  out[4] = 1 - xx - zz;
+  out[7] = zy - wx;
+
+  out[2] = zx - wy;
+  out[5] = zy + wx;
+  out[8] = 1 - xx - yy;
+
+  return out;
+}
+
+/**
+* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
+*
+* @param {mat3} out mat3 receiving operation result
+* @param {mat4} a Mat4 to derive the normal matrix from
+*
+* @returns {mat3} out
+*/
+export function normalFromMat4(out, a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+
+  let b00 = a00 * a11 - a01 * a10;
+  let b01 = a00 * a12 - a02 * a10;
+  let b02 = a00 * a13 - a03 * a10;
+  let b03 = a01 * a12 - a02 * a11;
+  let b04 = a01 * a13 - a03 * a11;
+  let b05 = a02 * a13 - a03 * a12;
+  let b06 = a20 * a31 - a21 * a30;
+  let b07 = a20 * a32 - a22 * a30;
+  let b08 = a20 * a33 - a23 * a30;
+  let b09 = a21 * a32 - a22 * a31;
+  let b10 = a21 * a33 - a23 * a31;
+  let b11 = a22 * a33 - a23 * a32;
+
+  // Calculate the determinant
+  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
+
+  if (!det) {
+    return null;
+  }
+  det = 1.0 / det;
+
+  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
+  out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
+  out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
+
+  out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
+  out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
+  out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
+
+  out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
+  out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
+  out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
+
+  return out;
+}
+
+/**
+ * Generates a 2D projection matrix with the given bounds
+ *
+ * @param {mat3} out mat3 frustum matrix will be written into
+ * @param {number} width Width of your gl context
+ * @param {number} height Height of gl context
+ * @returns {mat3} out
+ */
+export function projection(out, width, height) {
+    out[0] = 2 / width;
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[4] = -2 / height;
+    out[5] = 0;
+    out[6] = -1;
+    out[7] = 1;
+    out[8] = 1;
+    return out;
+}
+
+/**
+ * Returns a string representation of a mat3
+ *
+ * @param {mat3} a matrix to represent as a string
+ * @returns {String} string representation of the matrix
+ */
+export function str(a) {
+  return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' +
+          a[3] + ', ' + a[4] + ', ' + a[5] + ', ' +
+          a[6] + ', ' + a[7] + ', ' + a[8] + ')';
+}
+
+/**
+ * Returns Frobenius norm of a mat3
+ *
+ * @param {mat3} a the matrix to calculate Frobenius norm of
+ * @returns {Number} Frobenius norm
+ */
+export function frob(a) {
+  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))
+}
+
+/**
+ * Adds two mat3's
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the first operand
+ * @param {mat3} b the second operand
+ * @returns {mat3} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  out[4] = a[4] + b[4];
+  out[5] = a[5] + b[5];
+  out[6] = a[6] + b[6];
+  out[7] = a[7] + b[7];
+  out[8] = a[8] + b[8];
+  return out;
+}
+
+/**
+ * Subtracts matrix b from matrix a
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the first operand
+ * @param {mat3} b the second operand
+ * @returns {mat3} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  out[3] = a[3] - b[3];
+  out[4] = a[4] - b[4];
+  out[5] = a[5] - b[5];
+  out[6] = a[6] - b[6];
+  out[7] = a[7] - b[7];
+  out[8] = a[8] - b[8];
+  return out;
+}
+
+
+
+/**
+ * Multiply each element of the matrix by a scalar.
+ *
+ * @param {mat3} out the receiving matrix
+ * @param {mat3} a the matrix to scale
+ * @param {Number} b amount to scale the matrix's elements by
+ * @returns {mat3} out
+ */
+export function multiplyScalar(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  out[4] = a[4] * b;
+  out[5] = a[5] * b;
+  out[6] = a[6] * b;
+  out[7] = a[7] * b;
+  out[8] = a[8] * b;
+  return out;
+}
+
+/**
+ * Adds two mat3's after multiplying each element of the second operand by a scalar value.
+ *
+ * @param {mat3} out the receiving vector
+ * @param {mat3} a the first operand
+ * @param {mat3} b the second operand
+ * @param {Number} scale the amount to scale b's elements by before adding
+ * @returns {mat3} out
+ */
+export function multiplyScalarAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  out[3] = a[3] + (b[3] * scale);
+  out[4] = a[4] + (b[4] * scale);
+  out[5] = a[5] + (b[5] * scale);
+  out[6] = a[6] + (b[6] * scale);
+  out[7] = a[7] + (b[7] * scale);
+  out[8] = a[8] + (b[8] * scale);
+  return out;
+}
+
+/**
+ * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {mat3} a The first matrix.
+ * @param {mat3} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] &&
+         a[3] === b[3] && a[4] === b[4] && a[5] === b[5] &&
+         a[6] === b[6] && a[7] === b[7] && a[8] === b[8];
+}
+
+/**
+ * Returns whether or not the matrices have approximately the same elements in the same position.
+ *
+ * @param {mat3} a The first matrix.
+ * @param {mat3} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5], a6 = a[6], a7 = a[7], a8 = a[8];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5], b6 = b[6], b7 = b[7], b8 = b[8];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
+          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
+          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
+          Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
+          Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&
+          Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)));
+}
+
+/**
+ * Alias for {@link mat3.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link mat3.subtract}
+ * @function
+ */
+export const sub = subtract;
diff --git a/js/third-party/gl-matrix/src/gl-matrix/mat4.js b/js/third-party/gl-matrix/src/gl-matrix/mat4.js
new file mode 100644
index 000000000..6d60372d6
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/mat4.js
@@ -0,0 +1,1715 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 4x4 Matrix<br>Format: column-major, when typed out it looks like row-major<br>The matrices are being post multiplied.
+ * @module mat4
+ */
+
+/**
+ * Creates a new identity mat4
+ *
+ * @returns {mat4} a new 4x4 matrix
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(16);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[4] = 0;
+    out[6] = 0;
+    out[7] = 0;
+    out[8] = 0;
+    out[9] = 0;
+    out[11] = 0;
+    out[12] = 0;
+    out[13] = 0;
+    out[14] = 0;
+  }
+  out[0] = 1;
+  out[5] = 1;
+  out[10] = 1;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a new mat4 initialized with values from an existing matrix
+ *
+ * @param {mat4} a matrix to clone
+ * @returns {mat4} a new 4x4 matrix
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(16);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  out[6] = a[6];
+  out[7] = a[7];
+  out[8] = a[8];
+  out[9] = a[9];
+  out[10] = a[10];
+  out[11] = a[11];
+  out[12] = a[12];
+  out[13] = a[13];
+  out[14] = a[14];
+  out[15] = a[15];
+  return out;
+}
+
+/**
+ * Copy the values from one mat4 to another
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the source matrix
+ * @returns {mat4} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  out[6] = a[6];
+  out[7] = a[7];
+  out[8] = a[8];
+  out[9] = a[9];
+  out[10] = a[10];
+  out[11] = a[11];
+  out[12] = a[12];
+  out[13] = a[13];
+  out[14] = a[14];
+  out[15] = a[15];
+  return out;
+}
+
+/**
+ * Create a new mat4 with the given values
+ *
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m02 Component in column 0, row 2 position (index 2)
+ * @param {Number} m03 Component in column 0, row 3 position (index 3)
+ * @param {Number} m10 Component in column 1, row 0 position (index 4)
+ * @param {Number} m11 Component in column 1, row 1 position (index 5)
+ * @param {Number} m12 Component in column 1, row 2 position (index 6)
+ * @param {Number} m13 Component in column 1, row 3 position (index 7)
+ * @param {Number} m20 Component in column 2, row 0 position (index 8)
+ * @param {Number} m21 Component in column 2, row 1 position (index 9)
+ * @param {Number} m22 Component in column 2, row 2 position (index 10)
+ * @param {Number} m23 Component in column 2, row 3 position (index 11)
+ * @param {Number} m30 Component in column 3, row 0 position (index 12)
+ * @param {Number} m31 Component in column 3, row 1 position (index 13)
+ * @param {Number} m32 Component in column 3, row 2 position (index 14)
+ * @param {Number} m33 Component in column 3, row 3 position (index 15)
+ * @returns {mat4} A new mat4
+ */
+export function fromValues(m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {
+  let out = new glMatrix.ARRAY_TYPE(16);
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m02;
+  out[3] = m03;
+  out[4] = m10;
+  out[5] = m11;
+  out[6] = m12;
+  out[7] = m13;
+  out[8] = m20;
+  out[9] = m21;
+  out[10] = m22;
+  out[11] = m23;
+  out[12] = m30;
+  out[13] = m31;
+  out[14] = m32;
+  out[15] = m33;
+  return out;
+}
+
+/**
+ * Set the components of a mat4 to the given values
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {Number} m00 Component in column 0, row 0 position (index 0)
+ * @param {Number} m01 Component in column 0, row 1 position (index 1)
+ * @param {Number} m02 Component in column 0, row 2 position (index 2)
+ * @param {Number} m03 Component in column 0, row 3 position (index 3)
+ * @param {Number} m10 Component in column 1, row 0 position (index 4)
+ * @param {Number} m11 Component in column 1, row 1 position (index 5)
+ * @param {Number} m12 Component in column 1, row 2 position (index 6)
+ * @param {Number} m13 Component in column 1, row 3 position (index 7)
+ * @param {Number} m20 Component in column 2, row 0 position (index 8)
+ * @param {Number} m21 Component in column 2, row 1 position (index 9)
+ * @param {Number} m22 Component in column 2, row 2 position (index 10)
+ * @param {Number} m23 Component in column 2, row 3 position (index 11)
+ * @param {Number} m30 Component in column 3, row 0 position (index 12)
+ * @param {Number} m31 Component in column 3, row 1 position (index 13)
+ * @param {Number} m32 Component in column 3, row 2 position (index 14)
+ * @param {Number} m33 Component in column 3, row 3 position (index 15)
+ * @returns {mat4} out
+ */
+export function set(out, m00, m01, m02, m03, m10, m11, m12, m13, m20, m21, m22, m23, m30, m31, m32, m33) {
+  out[0] = m00;
+  out[1] = m01;
+  out[2] = m02;
+  out[3] = m03;
+  out[4] = m10;
+  out[5] = m11;
+  out[6] = m12;
+  out[7] = m13;
+  out[8] = m20;
+  out[9] = m21;
+  out[10] = m22;
+  out[11] = m23;
+  out[12] = m30;
+  out[13] = m31;
+  out[14] = m32;
+  out[15] = m33;
+  return out;
+}
+
+
+/**
+ * Set a mat4 to the identity matrix
+ *
+ * @param {mat4} out the receiving matrix
+ * @returns {mat4} out
+ */
+export function identity(out) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = 1;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[10] = 1;
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Transpose the values of a mat4
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the source matrix
+ * @returns {mat4} out
+ */
+export function transpose(out, a) {
+  // If we are transposing ourselves we can skip a few steps but have to cache some values
+  if (out === a) {
+    let a01 = a[1], a02 = a[2], a03 = a[3];
+    let a12 = a[6], a13 = a[7];
+    let a23 = a[11];
+
+    out[1] = a[4];
+    out[2] = a[8];
+    out[3] = a[12];
+    out[4] = a01;
+    out[6] = a[9];
+    out[7] = a[13];
+    out[8] = a02;
+    out[9] = a12;
+    out[11] = a[14];
+    out[12] = a03;
+    out[13] = a13;
+    out[14] = a23;
+  } else {
+    out[0] = a[0];
+    out[1] = a[4];
+    out[2] = a[8];
+    out[3] = a[12];
+    out[4] = a[1];
+    out[5] = a[5];
+    out[6] = a[9];
+    out[7] = a[13];
+    out[8] = a[2];
+    out[9] = a[6];
+    out[10] = a[10];
+    out[11] = a[14];
+    out[12] = a[3];
+    out[13] = a[7];
+    out[14] = a[11];
+    out[15] = a[15];
+  }
+
+  return out;
+}
+
+/**
+ * Inverts a mat4
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the source matrix
+ * @returns {mat4} out
+ */
+export function invert(out, a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+
+  let b00 = a00 * a11 - a01 * a10;
+  let b01 = a00 * a12 - a02 * a10;
+  let b02 = a00 * a13 - a03 * a10;
+  let b03 = a01 * a12 - a02 * a11;
+  let b04 = a01 * a13 - a03 * a11;
+  let b05 = a02 * a13 - a03 * a12;
+  let b06 = a20 * a31 - a21 * a30;
+  let b07 = a20 * a32 - a22 * a30;
+  let b08 = a20 * a33 - a23 * a30;
+  let b09 = a21 * a32 - a22 * a31;
+  let b10 = a21 * a33 - a23 * a31;
+  let b11 = a22 * a33 - a23 * a32;
+
+  // Calculate the determinant
+  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
+
+  if (!det) {
+    return null;
+  }
+  det = 1.0 / det;
+
+  out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
+  out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
+  out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
+  out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
+  out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
+  out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
+  out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
+  out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
+  out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
+  out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
+  out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
+  out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
+  out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
+  out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
+  out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
+  out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;
+
+  return out;
+}
+
+/**
+ * Calculates the adjugate of a mat4
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the source matrix
+ * @returns {mat4} out
+ */
+export function adjoint(out, a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+
+  out[0]  =  (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));
+  out[1]  = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));
+  out[2]  =  (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));
+  out[3]  = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));
+  out[4]  = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));
+  out[5]  =  (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));
+  out[6]  = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));
+  out[7]  =  (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));
+  out[8]  =  (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));
+  out[9]  = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));
+  out[10] =  (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));
+  out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));
+  out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));
+  out[13] =  (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));
+  out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));
+  out[15] =  (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));
+  return out;
+}
+
+/**
+ * Calculates the determinant of a mat4
+ *
+ * @param {mat4} a the source matrix
+ * @returns {Number} determinant of a
+ */
+export function determinant(a) {
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+
+  let b00 = a00 * a11 - a01 * a10;
+  let b01 = a00 * a12 - a02 * a10;
+  let b02 = a00 * a13 - a03 * a10;
+  let b03 = a01 * a12 - a02 * a11;
+  let b04 = a01 * a13 - a03 * a11;
+  let b05 = a02 * a13 - a03 * a12;
+  let b06 = a20 * a31 - a21 * a30;
+  let b07 = a20 * a32 - a22 * a30;
+  let b08 = a20 * a33 - a23 * a30;
+  let b09 = a21 * a32 - a22 * a31;
+  let b10 = a21 * a33 - a23 * a31;
+  let b11 = a22 * a33 - a23 * a32;
+
+  // Calculate the determinant
+  return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
+}
+
+/**
+ * Multiplies two mat4s
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the first operand
+ * @param {mat4} b the second operand
+ * @returns {mat4} out
+ */
+export function multiply(out, a, b) {
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+
+  // Cache only the current line of the second matrix
+  let b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
+  out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+
+  b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];
+  out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+
+  b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];
+  out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+
+  b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];
+  out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+  return out;
+}
+
+/**
+ * Translate a mat4 by the given vector
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to translate
+ * @param {vec3} v vector to translate by
+ * @returns {mat4} out
+ */
+export function translate(out, a, v) {
+  let x = v[0], y = v[1], z = v[2];
+  let a00, a01, a02, a03;
+  let a10, a11, a12, a13;
+  let a20, a21, a22, a23;
+
+  if (a === out) {
+    out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
+    out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
+    out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
+    out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
+  } else {
+    a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
+    a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
+    a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
+
+    out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
+    out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
+    out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;
+
+    out[12] = a00 * x + a10 * y + a20 * z + a[12];
+    out[13] = a01 * x + a11 * y + a21 * z + a[13];
+    out[14] = a02 * x + a12 * y + a22 * z + a[14];
+    out[15] = a03 * x + a13 * y + a23 * z + a[15];
+  }
+
+  return out;
+}
+
+/**
+ * Scales the mat4 by the dimensions in the given vec3 not using vectorization
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to scale
+ * @param {vec3} v the vec3 to scale the matrix by
+ * @returns {mat4} out
+ **/
+export function scale(out, a, v) {
+  let x = v[0], y = v[1], z = v[2];
+
+  out[0] = a[0] * x;
+  out[1] = a[1] * x;
+  out[2] = a[2] * x;
+  out[3] = a[3] * x;
+  out[4] = a[4] * y;
+  out[5] = a[5] * y;
+  out[6] = a[6] * y;
+  out[7] = a[7] * y;
+  out[8] = a[8] * z;
+  out[9] = a[9] * z;
+  out[10] = a[10] * z;
+  out[11] = a[11] * z;
+  out[12] = a[12];
+  out[13] = a[13];
+  out[14] = a[14];
+  out[15] = a[15];
+  return out;
+}
+
+/**
+ * Rotates a mat4 by the given angle around the given axis
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @param {vec3} axis the axis to rotate around
+ * @returns {mat4} out
+ */
+export function rotate(out, a, rad, axis) {
+  let x = axis[0], y = axis[1], z = axis[2];
+  let len = Math.sqrt(x * x + y * y + z * z);
+  let s, c, t;
+  let a00, a01, a02, a03;
+  let a10, a11, a12, a13;
+  let a20, a21, a22, a23;
+  let b00, b01, b02;
+  let b10, b11, b12;
+  let b20, b21, b22;
+
+  if (len < glMatrix.EPSILON) { return null; }
+
+  len = 1 / len;
+  x *= len;
+  y *= len;
+  z *= len;
+
+  s = Math.sin(rad);
+  c = Math.cos(rad);
+  t = 1 - c;
+
+  a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
+  a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
+  a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];
+
+  // Construct the elements of the rotation matrix
+  b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;
+  b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;
+  b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;
+
+  // Perform rotation-specific matrix multiplication
+  out[0] = a00 * b00 + a10 * b01 + a20 * b02;
+  out[1] = a01 * b00 + a11 * b01 + a21 * b02;
+  out[2] = a02 * b00 + a12 * b01 + a22 * b02;
+  out[3] = a03 * b00 + a13 * b01 + a23 * b02;
+  out[4] = a00 * b10 + a10 * b11 + a20 * b12;
+  out[5] = a01 * b10 + a11 * b11 + a21 * b12;
+  out[6] = a02 * b10 + a12 * b11 + a22 * b12;
+  out[7] = a03 * b10 + a13 * b11 + a23 * b12;
+  out[8] = a00 * b20 + a10 * b21 + a20 * b22;
+  out[9] = a01 * b20 + a11 * b21 + a21 * b22;
+  out[10] = a02 * b20 + a12 * b21 + a22 * b22;
+  out[11] = a03 * b20 + a13 * b21 + a23 * b22;
+
+  if (a !== out) { // If the source and destination differ, copy the unchanged last row
+    out[12] = a[12];
+    out[13] = a[13];
+    out[14] = a[14];
+    out[15] = a[15];
+  }
+  return out;
+}
+
+/**
+ * Rotates a matrix by the given angle around the X axis
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function rotateX(out, a, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  let a10 = a[4];
+  let a11 = a[5];
+  let a12 = a[6];
+  let a13 = a[7];
+  let a20 = a[8];
+  let a21 = a[9];
+  let a22 = a[10];
+  let a23 = a[11];
+
+  if (a !== out) { // If the source and destination differ, copy the unchanged rows
+    out[0]  = a[0];
+    out[1]  = a[1];
+    out[2]  = a[2];
+    out[3]  = a[3];
+    out[12] = a[12];
+    out[13] = a[13];
+    out[14] = a[14];
+    out[15] = a[15];
+  }
+
+  // Perform axis-specific matrix multiplication
+  out[4] = a10 * c + a20 * s;
+  out[5] = a11 * c + a21 * s;
+  out[6] = a12 * c + a22 * s;
+  out[7] = a13 * c + a23 * s;
+  out[8] = a20 * c - a10 * s;
+  out[9] = a21 * c - a11 * s;
+  out[10] = a22 * c - a12 * s;
+  out[11] = a23 * c - a13 * s;
+  return out;
+}
+
+/**
+ * Rotates a matrix by the given angle around the Y axis
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function rotateY(out, a, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  let a00 = a[0];
+  let a01 = a[1];
+  let a02 = a[2];
+  let a03 = a[3];
+  let a20 = a[8];
+  let a21 = a[9];
+  let a22 = a[10];
+  let a23 = a[11];
+
+  if (a !== out) { // If the source and destination differ, copy the unchanged rows
+    out[4]  = a[4];
+    out[5]  = a[5];
+    out[6]  = a[6];
+    out[7]  = a[7];
+    out[12] = a[12];
+    out[13] = a[13];
+    out[14] = a[14];
+    out[15] = a[15];
+  }
+
+  // Perform axis-specific matrix multiplication
+  out[0] = a00 * c - a20 * s;
+  out[1] = a01 * c - a21 * s;
+  out[2] = a02 * c - a22 * s;
+  out[3] = a03 * c - a23 * s;
+  out[8] = a00 * s + a20 * c;
+  out[9] = a01 * s + a21 * c;
+  out[10] = a02 * s + a22 * c;
+  out[11] = a03 * s + a23 * c;
+  return out;
+}
+
+/**
+ * Rotates a matrix by the given angle around the Z axis
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to rotate
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function rotateZ(out, a, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+  let a00 = a[0];
+  let a01 = a[1];
+  let a02 = a[2];
+  let a03 = a[3];
+  let a10 = a[4];
+  let a11 = a[5];
+  let a12 = a[6];
+  let a13 = a[7];
+
+  if (a !== out) { // If the source and destination differ, copy the unchanged last row
+    out[8]  = a[8];
+    out[9]  = a[9];
+    out[10] = a[10];
+    out[11] = a[11];
+    out[12] = a[12];
+    out[13] = a[13];
+    out[14] = a[14];
+    out[15] = a[15];
+  }
+
+  // Perform axis-specific matrix multiplication
+  out[0] = a00 * c + a10 * s;
+  out[1] = a01 * c + a11 * s;
+  out[2] = a02 * c + a12 * s;
+  out[3] = a03 * c + a13 * s;
+  out[4] = a10 * c - a00 * s;
+  out[5] = a11 * c - a01 * s;
+  out[6] = a12 * c - a02 * s;
+  out[7] = a13 * c - a03 * s;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector translation
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.translate(dest, dest, vec);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {vec3} v Translation vector
+ * @returns {mat4} out
+ */
+export function fromTranslation(out, v) {
+  out[0] = 1;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = 1;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[10] = 1;
+  out[11] = 0;
+  out[12] = v[0];
+  out[13] = v[1];
+  out[14] = v[2];
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a vector scaling
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.scale(dest, dest, vec);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {vec3} v Scaling vector
+ * @returns {mat4} out
+ */
+export function fromScaling(out, v) {
+  out[0] = v[0];
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = v[1];
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[10] = v[2];
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a given angle around a given axis
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.rotate(dest, dest, rad, axis);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @param {vec3} axis the axis to rotate around
+ * @returns {mat4} out
+ */
+export function fromRotation(out, rad, axis) {
+  let x = axis[0], y = axis[1], z = axis[2];
+  let len = Math.sqrt(x * x + y * y + z * z);
+  let s, c, t;
+
+  if (len < glMatrix.EPSILON) { return null; }
+
+  len = 1 / len;
+  x *= len;
+  y *= len;
+  z *= len;
+
+  s = Math.sin(rad);
+  c = Math.cos(rad);
+  t = 1 - c;
+
+  // Perform rotation-specific matrix multiplication
+  out[0] = x * x * t + c;
+  out[1] = y * x * t + z * s;
+  out[2] = z * x * t - y * s;
+  out[3] = 0;
+  out[4] = x * y * t - z * s;
+  out[5] = y * y * t + c;
+  out[6] = z * y * t + x * s;
+  out[7] = 0;
+  out[8] = x * z * t + y * s;
+  out[9] = y * z * t - x * s;
+  out[10] = z * z * t + c;
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from the given angle around the X axis
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.rotateX(dest, dest, rad);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function fromXRotation(out, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+
+  // Perform axis-specific matrix multiplication
+  out[0]  = 1;
+  out[1]  = 0;
+  out[2]  = 0;
+  out[3]  = 0;
+  out[4] = 0;
+  out[5] = c;
+  out[6] = s;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = -s;
+  out[10] = c;
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from the given angle around the Y axis
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.rotateY(dest, dest, rad);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function fromYRotation(out, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+
+  // Perform axis-specific matrix multiplication
+  out[0]  = c;
+  out[1]  = 0;
+  out[2]  = -s;
+  out[3]  = 0;
+  out[4] = 0;
+  out[5] = 1;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = s;
+  out[9] = 0;
+  out[10] = c;
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from the given angle around the Z axis
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.rotateZ(dest, dest, rad);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {Number} rad the angle to rotate the matrix by
+ * @returns {mat4} out
+ */
+export function fromZRotation(out, rad) {
+  let s = Math.sin(rad);
+  let c = Math.cos(rad);
+
+  // Perform axis-specific matrix multiplication
+  out[0]  = c;
+  out[1]  = s;
+  out[2]  = 0;
+  out[3]  = 0;
+  out[4] = -s;
+  out[5] = c;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[10] = 1;
+  out[11] = 0;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Creates a matrix from a quaternion rotation and vector translation
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.translate(dest, vec);
+ *     let quatMat = mat4.create();
+ *     quat4.toMat4(quat, quatMat);
+ *     mat4.multiply(dest, quatMat);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {quat4} q Rotation quaternion
+ * @param {vec3} v Translation vector
+ * @returns {mat4} out
+ */
+export function fromRotationTranslation(out, q, v) {
+  // Quaternion math
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+
+  let xx = x * x2;
+  let xy = x * y2;
+  let xz = x * z2;
+  let yy = y * y2;
+  let yz = y * z2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
+
+  out[0] = 1 - (yy + zz);
+  out[1] = xy + wz;
+  out[2] = xz - wy;
+  out[3] = 0;
+  out[4] = xy - wz;
+  out[5] = 1 - (xx + zz);
+  out[6] = yz + wx;
+  out[7] = 0;
+  out[8] = xz + wy;
+  out[9] = yz - wx;
+  out[10] = 1 - (xx + yy);
+  out[11] = 0;
+  out[12] = v[0];
+  out[13] = v[1];
+  out[14] = v[2];
+  out[15] = 1;
+
+  return out;
+}
+
+/**
+ * Creates a new mat4 from a dual quat.
+ *
+ * @param {mat4} out Matrix
+ * @param {quat2} a Dual Quaternion
+ * @returns {mat4} mat4 receiving operation result
+ */
+export function fromQuat2(out, a) {
+  let translation = new glMatrix.ARRAY_TYPE(3);
+  let bx = -a[0], by = -a[1], bz = -a[2], bw = a[3],
+  ax = a[4], ay = a[5], az = a[6], aw = a[7];
+
+  let magnitude = bx * bx + by * by + bz * bz + bw * bw;
+  //Only scale if it makes sense
+  if (magnitude > 0) {
+    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2 / magnitude;
+    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2 / magnitude;
+    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2 / magnitude;
+  } else {
+    translation[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;
+    translation[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;
+    translation[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;
+  }
+  fromRotationTranslation(out, a, translation);
+  return out;
+}
+
+/**
+ * Returns the translation vector component of a transformation
+ *  matrix. If a matrix is built with fromRotationTranslation,
+ *  the returned vector will be the same as the translation vector
+ *  originally supplied.
+ * @param  {vec3} out Vector to receive translation component
+ * @param  {mat4} mat Matrix to be decomposed (input)
+ * @return {vec3} out
+ */
+export function getTranslation(out, mat) {
+  out[0] = mat[12];
+  out[1] = mat[13];
+  out[2] = mat[14];
+
+  return out;
+}
+
+/**
+ * Returns the scaling factor component of a transformation
+ *  matrix. If a matrix is built with fromRotationTranslationScale
+ *  with a normalized Quaternion paramter, the returned vector will be
+ *  the same as the scaling vector
+ *  originally supplied.
+ * @param  {vec3} out Vector to receive scaling factor component
+ * @param  {mat4} mat Matrix to be decomposed (input)
+ * @return {vec3} out
+ */
+export function getScaling(out, mat) {
+  let m11 = mat[0];
+  let m12 = mat[1];
+  let m13 = mat[2];
+  let m21 = mat[4];
+  let m22 = mat[5];
+  let m23 = mat[6];
+  let m31 = mat[8];
+  let m32 = mat[9];
+  let m33 = mat[10];
+
+  out[0] = Math.sqrt(m11 * m11 + m12 * m12 + m13 * m13);
+  out[1] = Math.sqrt(m21 * m21 + m22 * m22 + m23 * m23);
+  out[2] = Math.sqrt(m31 * m31 + m32 * m32 + m33 * m33);
+
+  return out;
+}
+
+/**
+ * Returns a quaternion representing the rotational component
+ *  of a transformation matrix. If a matrix is built with
+ *  fromRotationTranslation, the returned quaternion will be the
+ *  same as the quaternion originally supplied.
+ * @param {quat} out Quaternion to receive the rotation component
+ * @param {mat4} mat Matrix to be decomposed (input)
+ * @return {quat} out
+ */
+export function getRotation(out, mat) {
+  // Algorithm taken from http://www.euclideanspace.com/maths/geometry/rotations/conversions/matrixToQuaternion/index.htm
+  let trace = mat[0] + mat[5] + mat[10];
+  let S = 0;
+
+  if (trace > 0) {
+    S = Math.sqrt(trace + 1.0) * 2;
+    out[3] = 0.25 * S;
+    out[0] = (mat[6] - mat[9]) / S;
+    out[1] = (mat[8] - mat[2]) / S;
+    out[2] = (mat[1] - mat[4]) / S;
+  } else if ((mat[0] > mat[5]) && (mat[0] > mat[10])) {
+    S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2;
+    out[3] = (mat[6] - mat[9]) / S;
+    out[0] = 0.25 * S;
+    out[1] = (mat[1] + mat[4]) / S;
+    out[2] = (mat[8] + mat[2]) / S;
+  } else if (mat[5] > mat[10]) {
+    S = Math.sqrt(1.0 + mat[5] - mat[0] - mat[10]) * 2;
+    out[3] = (mat[8] - mat[2]) / S;
+    out[0] = (mat[1] + mat[4]) / S;
+    out[1] = 0.25 * S;
+    out[2] = (mat[6] + mat[9]) / S;
+  } else {
+    S = Math.sqrt(1.0 + mat[10] - mat[0] - mat[5]) * 2;
+    out[3] = (mat[1] - mat[4]) / S;
+    out[0] = (mat[8] + mat[2]) / S;
+    out[1] = (mat[6] + mat[9]) / S;
+    out[2] = 0.25 * S;
+  }
+
+  return out;
+}
+
+/**
+ * Creates a matrix from a quaternion rotation, vector translation and vector scale
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.translate(dest, vec);
+ *     let quatMat = mat4.create();
+ *     quat4.toMat4(quat, quatMat);
+ *     mat4.multiply(dest, quatMat);
+ *     mat4.scale(dest, scale)
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {quat4} q Rotation quaternion
+ * @param {vec3} v Translation vector
+ * @param {vec3} s Scaling vector
+ * @returns {mat4} out
+ */
+export function fromRotationTranslationScale(out, q, v, s) {
+  // Quaternion math
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+
+  let xx = x * x2;
+  let xy = x * y2;
+  let xz = x * z2;
+  let yy = y * y2;
+  let yz = y * z2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
+  let sx = s[0];
+  let sy = s[1];
+  let sz = s[2];
+
+  out[0] = (1 - (yy + zz)) * sx;
+  out[1] = (xy + wz) * sx;
+  out[2] = (xz - wy) * sx;
+  out[3] = 0;
+  out[4] = (xy - wz) * sy;
+  out[5] = (1 - (xx + zz)) * sy;
+  out[6] = (yz + wx) * sy;
+  out[7] = 0;
+  out[8] = (xz + wy) * sz;
+  out[9] = (yz - wx) * sz;
+  out[10] = (1 - (xx + yy)) * sz;
+  out[11] = 0;
+  out[12] = v[0];
+  out[13] = v[1];
+  out[14] = v[2];
+  out[15] = 1;
+
+  return out;
+}
+
+/**
+ * Creates a matrix from a quaternion rotation, vector translation and vector scale, rotating and scaling around the given origin
+ * This is equivalent to (but much faster than):
+ *
+ *     mat4.identity(dest);
+ *     mat4.translate(dest, vec);
+ *     mat4.translate(dest, origin);
+ *     let quatMat = mat4.create();
+ *     quat4.toMat4(quat, quatMat);
+ *     mat4.multiply(dest, quatMat);
+ *     mat4.scale(dest, scale)
+ *     mat4.translate(dest, negativeOrigin);
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {quat4} q Rotation quaternion
+ * @param {vec3} v Translation vector
+ * @param {vec3} s Scaling vector
+ * @param {vec3} o The origin vector around which to scale and rotate
+ * @returns {mat4} out
+ */
+export function fromRotationTranslationScaleOrigin(out, q, v, s, o) {
+  // Quaternion math
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+
+  let xx = x * x2;
+  let xy = x * y2;
+  let xz = x * z2;
+  let yy = y * y2;
+  let yz = y * z2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
+
+  let sx = s[0];
+  let sy = s[1];
+  let sz = s[2];
+
+  let ox = o[0];
+  let oy = o[1];
+  let oz = o[2];
+
+  let out0 = (1 - (yy + zz)) * sx;
+  let out1 = (xy + wz) * sx;
+  let out2 = (xz - wy) * sx;
+  let out4 = (xy - wz) * sy;
+  let out5 = (1 - (xx + zz)) * sy;
+  let out6 = (yz + wx) * sy;
+  let out8 = (xz + wy) * sz;
+  let out9 = (yz - wx) * sz;
+  let out10 = (1 - (xx + yy)) * sz;
+
+  out[0] = out0;
+  out[1] = out1;
+  out[2] = out2;
+  out[3] = 0;
+  out[4] = out4;
+  out[5] = out5;
+  out[6] = out6;
+  out[7] = 0;
+  out[8] = out8;
+  out[9] = out9;
+  out[10] = out10;
+  out[11] = 0;
+  out[12] = v[0] + ox - (out0 * ox + out4 * oy + out8 * oz);
+  out[13] = v[1] + oy - (out1 * ox + out5 * oy + out9 * oz);
+  out[14] = v[2] + oz - (out2 * ox + out6 * oy + out10 * oz);
+  out[15] = 1;
+
+  return out;
+}
+
+/**
+ * Calculates a 4x4 matrix from the given quaternion
+ *
+ * @param {mat4} out mat4 receiving operation result
+ * @param {quat} q Quaternion to create matrix from
+ *
+ * @returns {mat4} out
+ */
+export function fromQuat(out, q) {
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+
+  let xx = x * x2;
+  let yx = y * x2;
+  let yy = y * y2;
+  let zx = z * x2;
+  let zy = z * y2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
+
+  out[0] = 1 - yy - zz;
+  out[1] = yx + wz;
+  out[2] = zx - wy;
+  out[3] = 0;
+
+  out[4] = yx - wz;
+  out[5] = 1 - xx - zz;
+  out[6] = zy + wx;
+  out[7] = 0;
+
+  out[8] = zx + wy;
+  out[9] = zy - wx;
+  out[10] = 1 - xx - yy;
+  out[11] = 0;
+
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = 0;
+  out[15] = 1;
+
+  return out;
+}
+
+/**
+ * Generates a frustum matrix with the given bounds
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {Number} left Left bound of the frustum
+ * @param {Number} right Right bound of the frustum
+ * @param {Number} bottom Bottom bound of the frustum
+ * @param {Number} top Top bound of the frustum
+ * @param {Number} near Near bound of the frustum
+ * @param {Number} far Far bound of the frustum
+ * @returns {mat4} out
+ */
+export function frustum(out, left, right, bottom, top, near, far) {
+  let rl = 1 / (right - left);
+  let tb = 1 / (top - bottom);
+  let nf = 1 / (near - far);
+  out[0] = (near * 2) * rl;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = (near * 2) * tb;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = (right + left) * rl;
+  out[9] = (top + bottom) * tb;
+  out[10] = (far + near) * nf;
+  out[11] = -1;
+  out[12] = 0;
+  out[13] = 0;
+  out[14] = (far * near * 2) * nf;
+  out[15] = 0;
+  return out;
+}
+
+/**
+ * Generates a perspective projection matrix with the given bounds.
+ * Passing null/undefined/no value for far will generate infinite projection matrix.
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {number} fovy Vertical field of view in radians
+ * @param {number} aspect Aspect ratio. typically viewport width/height
+ * @param {number} near Near bound of the frustum
+ * @param {number} far Far bound of the frustum, can be null or Infinity
+ * @returns {mat4} out
+ */
+export function perspective(out, fovy, aspect, near, far) {
+  let f = 1.0 / Math.tan(fovy / 2), nf;
+  out[0] = f / aspect;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = f;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[11] = -1;
+  out[12] = 0;
+  out[13] = 0;
+  out[15] = 0;
+  if (far != null && far !== Infinity) {
+    nf = 1 / (near - far);
+    out[10] = (far + near) * nf;
+    out[14] = (2 * far * near) * nf;
+  } else {
+    out[10] = -1;
+    out[14] = -2 * near;
+  }
+  return out;
+}
+
+/**
+ * Generates a perspective projection matrix with the given field of view.
+ * This is primarily useful for generating projection matrices to be used
+ * with the still experiemental WebVR API.
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {Object} fov Object containing the following values: upDegrees, downDegrees, leftDegrees, rightDegrees
+ * @param {number} near Near bound of the frustum
+ * @param {number} far Far bound of the frustum
+ * @returns {mat4} out
+ */
+export function perspectiveFromFieldOfView(out, fov, near, far) {
+  let upTan = Math.tan(fov.upDegrees * Math.PI/180.0);
+  let downTan = Math.tan(fov.downDegrees * Math.PI/180.0);
+  let leftTan = Math.tan(fov.leftDegrees * Math.PI/180.0);
+  let rightTan = Math.tan(fov.rightDegrees * Math.PI/180.0);
+  let xScale = 2.0 / (leftTan + rightTan);
+  let yScale = 2.0 / (upTan + downTan);
+
+  out[0] = xScale;
+  out[1] = 0.0;
+  out[2] = 0.0;
+  out[3] = 0.0;
+  out[4] = 0.0;
+  out[5] = yScale;
+  out[6] = 0.0;
+  out[7] = 0.0;
+  out[8] = -((leftTan - rightTan) * xScale * 0.5);
+  out[9] = ((upTan - downTan) * yScale * 0.5);
+  out[10] = far / (near - far);
+  out[11] = -1.0;
+  out[12] = 0.0;
+  out[13] = 0.0;
+  out[14] = (far * near) / (near - far);
+  out[15] = 0.0;
+  return out;
+}
+
+/**
+ * Generates a orthogonal projection matrix with the given bounds
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {number} left Left bound of the frustum
+ * @param {number} right Right bound of the frustum
+ * @param {number} bottom Bottom bound of the frustum
+ * @param {number} top Top bound of the frustum
+ * @param {number} near Near bound of the frustum
+ * @param {number} far Far bound of the frustum
+ * @returns {mat4} out
+ */
+export function ortho(out, left, right, bottom, top, near, far) {
+  let lr = 1 / (left - right);
+  let bt = 1 / (bottom - top);
+  let nf = 1 / (near - far);
+  out[0] = -2 * lr;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 0;
+  out[4] = 0;
+  out[5] = -2 * bt;
+  out[6] = 0;
+  out[7] = 0;
+  out[8] = 0;
+  out[9] = 0;
+  out[10] = 2 * nf;
+  out[11] = 0;
+  out[12] = (left + right) * lr;
+  out[13] = (top + bottom) * bt;
+  out[14] = (far + near) * nf;
+  out[15] = 1;
+  return out;
+}
+
+/**
+ * Generates a look-at matrix with the given eye position, focal point, and up axis.
+ * If you want a matrix that actually makes an object look at another object, you should use targetTo instead.
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {vec3} eye Position of the viewer
+ * @param {vec3} center Point the viewer is looking at
+ * @param {vec3} up vec3 pointing up
+ * @returns {mat4} out
+ */
+export function lookAt(out, eye, center, up) {
+  let x0, x1, x2, y0, y1, y2, z0, z1, z2, len;
+  let eyex = eye[0];
+  let eyey = eye[1];
+  let eyez = eye[2];
+  let upx = up[0];
+  let upy = up[1];
+  let upz = up[2];
+  let centerx = center[0];
+  let centery = center[1];
+  let centerz = center[2];
+
+  if (Math.abs(eyex - centerx) < glMatrix.EPSILON &&
+      Math.abs(eyey - centery) < glMatrix.EPSILON &&
+      Math.abs(eyez - centerz) < glMatrix.EPSILON) {
+    return identity(out);
+  }
+
+  z0 = eyex - centerx;
+  z1 = eyey - centery;
+  z2 = eyez - centerz;
+
+  len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);
+  z0 *= len;
+  z1 *= len;
+  z2 *= len;
+
+  x0 = upy * z2 - upz * z1;
+  x1 = upz * z0 - upx * z2;
+  x2 = upx * z1 - upy * z0;
+  len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);
+  if (!len) {
+    x0 = 0;
+    x1 = 0;
+    x2 = 0;
+  } else {
+    len = 1 / len;
+    x0 *= len;
+    x1 *= len;
+    x2 *= len;
+  }
+
+  y0 = z1 * x2 - z2 * x1;
+  y1 = z2 * x0 - z0 * x2;
+  y2 = z0 * x1 - z1 * x0;
+
+  len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);
+  if (!len) {
+    y0 = 0;
+    y1 = 0;
+    y2 = 0;
+  } else {
+    len = 1 / len;
+    y0 *= len;
+    y1 *= len;
+    y2 *= len;
+  }
+
+  out[0] = x0;
+  out[1] = y0;
+  out[2] = z0;
+  out[3] = 0;
+  out[4] = x1;
+  out[5] = y1;
+  out[6] = z1;
+  out[7] = 0;
+  out[8] = x2;
+  out[9] = y2;
+  out[10] = z2;
+  out[11] = 0;
+  out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);
+  out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);
+  out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);
+  out[15] = 1;
+
+  return out;
+}
+
+/**
+ * Generates a matrix that makes something look at something else.
+ *
+ * @param {mat4} out mat4 frustum matrix will be written into
+ * @param {vec3} eye Position of the viewer
+ * @param {vec3} center Point the viewer is looking at
+ * @param {vec3} up vec3 pointing up
+ * @returns {mat4} out
+ */
+export function targetTo(out, eye, target, up) {
+  let eyex = eye[0],
+      eyey = eye[1],
+      eyez = eye[2],
+      upx = up[0],
+      upy = up[1],
+      upz = up[2];
+
+  let z0 = eyex - target[0],
+      z1 = eyey - target[1],
+      z2 = eyez - target[2];
+
+  let len = z0*z0 + z1*z1 + z2*z2;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    z0 *= len;
+    z1 *= len;
+    z2 *= len;
+  }
+
+  let x0 = upy * z2 - upz * z1,
+      x1 = upz * z0 - upx * z2,
+      x2 = upx * z1 - upy * z0;
+
+  len = x0*x0 + x1*x1 + x2*x2;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    x0 *= len;
+    x1 *= len;
+    x2 *= len;
+  }
+
+  out[0] = x0;
+  out[1] = x1;
+  out[2] = x2;
+  out[3] = 0;
+  out[4] = z1 * x2 - z2 * x1;
+  out[5] = z2 * x0 - z0 * x2;
+  out[6] = z0 * x1 - z1 * x0;
+  out[7] = 0;
+  out[8] = z0;
+  out[9] = z1;
+  out[10] = z2;
+  out[11] = 0;
+  out[12] = eyex;
+  out[13] = eyey;
+  out[14] = eyez;
+  out[15] = 1;
+  return out;
+};
+
+/**
+ * Returns a string representation of a mat4
+ *
+ * @param {mat4} a matrix to represent as a string
+ * @returns {String} string representation of the matrix
+ */
+export function str(a) {
+  return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
+          a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +
+          a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' +
+          a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';
+}
+
+/**
+ * Returns Frobenius norm of a mat4
+ *
+ * @param {mat4} a the matrix to calculate Frobenius norm of
+ * @returns {Number} Frobenius norm
+ */
+export function frob(a) {
+  return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))
+}
+
+/**
+ * Adds two mat4's
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the first operand
+ * @param {mat4} b the second operand
+ * @returns {mat4} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  out[4] = a[4] + b[4];
+  out[5] = a[5] + b[5];
+  out[6] = a[6] + b[6];
+  out[7] = a[7] + b[7];
+  out[8] = a[8] + b[8];
+  out[9] = a[9] + b[9];
+  out[10] = a[10] + b[10];
+  out[11] = a[11] + b[11];
+  out[12] = a[12] + b[12];
+  out[13] = a[13] + b[13];
+  out[14] = a[14] + b[14];
+  out[15] = a[15] + b[15];
+  return out;
+}
+
+/**
+ * Subtracts matrix b from matrix a
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the first operand
+ * @param {mat4} b the second operand
+ * @returns {mat4} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  out[3] = a[3] - b[3];
+  out[4] = a[4] - b[4];
+  out[5] = a[5] - b[5];
+  out[6] = a[6] - b[6];
+  out[7] = a[7] - b[7];
+  out[8] = a[8] - b[8];
+  out[9] = a[9] - b[9];
+  out[10] = a[10] - b[10];
+  out[11] = a[11] - b[11];
+  out[12] = a[12] - b[12];
+  out[13] = a[13] - b[13];
+  out[14] = a[14] - b[14];
+  out[15] = a[15] - b[15];
+  return out;
+}
+
+/**
+ * Multiply each element of the matrix by a scalar.
+ *
+ * @param {mat4} out the receiving matrix
+ * @param {mat4} a the matrix to scale
+ * @param {Number} b amount to scale the matrix's elements by
+ * @returns {mat4} out
+ */
+export function multiplyScalar(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  out[4] = a[4] * b;
+  out[5] = a[5] * b;
+  out[6] = a[6] * b;
+  out[7] = a[7] * b;
+  out[8] = a[8] * b;
+  out[9] = a[9] * b;
+  out[10] = a[10] * b;
+  out[11] = a[11] * b;
+  out[12] = a[12] * b;
+  out[13] = a[13] * b;
+  out[14] = a[14] * b;
+  out[15] = a[15] * b;
+  return out;
+}
+
+/**
+ * Adds two mat4's after multiplying each element of the second operand by a scalar value.
+ *
+ * @param {mat4} out the receiving vector
+ * @param {mat4} a the first operand
+ * @param {mat4} b the second operand
+ * @param {Number} scale the amount to scale b's elements by before adding
+ * @returns {mat4} out
+ */
+export function multiplyScalarAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  out[3] = a[3] + (b[3] * scale);
+  out[4] = a[4] + (b[4] * scale);
+  out[5] = a[5] + (b[5] * scale);
+  out[6] = a[6] + (b[6] * scale);
+  out[7] = a[7] + (b[7] * scale);
+  out[8] = a[8] + (b[8] * scale);
+  out[9] = a[9] + (b[9] * scale);
+  out[10] = a[10] + (b[10] * scale);
+  out[11] = a[11] + (b[11] * scale);
+  out[12] = a[12] + (b[12] * scale);
+  out[13] = a[13] + (b[13] * scale);
+  out[14] = a[14] + (b[14] * scale);
+  out[15] = a[15] + (b[15] * scale);
+  return out;
+}
+
+/**
+ * Returns whether or not the matrices have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {mat4} a The first matrix.
+ * @param {mat4} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&
+         a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7] &&
+         a[8] === b[8] && a[9] === b[9] && a[10] === b[10] && a[11] === b[11] &&
+         a[12] === b[12] && a[13] === b[13] && a[14] === b[14] && a[15] === b[15];
+}
+
+/**
+ * Returns whether or not the matrices have approximately the same elements in the same position.
+ *
+ * @param {mat4} a The first matrix.
+ * @param {mat4} b The second matrix.
+ * @returns {Boolean} True if the matrices are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0  = a[0],  a1  = a[1],  a2  = a[2],  a3  = a[3];
+  let a4  = a[4],  a5  = a[5],  a6  = a[6],  a7  = a[7];
+  let a8  = a[8],  a9  = a[9],  a10 = a[10], a11 = a[11];
+  let a12 = a[12], a13 = a[13], a14 = a[14], a15 = a[15];
+
+  let b0  = b[0],  b1  = b[1],  b2  = b[2],  b3  = b[3];
+  let b4  = b[4],  b5  = b[5],  b6  = b[6],  b7  = b[7];
+  let b8  = b[8],  b9  = b[9],  b10 = b[10], b11 = b[11];
+  let b12 = b[12], b13 = b[13], b14 = b[14], b15 = b[15];
+
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
+          Math.abs(a4 - b4) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
+          Math.abs(a5 - b5) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
+          Math.abs(a6 - b6) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
+          Math.abs(a7 - b7) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a7), Math.abs(b7)) &&
+          Math.abs(a8 - b8) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a8), Math.abs(b8)) &&
+          Math.abs(a9 - b9) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a9), Math.abs(b9)) &&
+          Math.abs(a10 - b10) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a10), Math.abs(b10)) &&
+          Math.abs(a11 - b11) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a11), Math.abs(b11)) &&
+          Math.abs(a12 - b12) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a12), Math.abs(b12)) &&
+          Math.abs(a13 - b13) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a13), Math.abs(b13)) &&
+          Math.abs(a14 - b14) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a14), Math.abs(b14)) &&
+          Math.abs(a15 - b15) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a15), Math.abs(b15)));
+}
+
+/**
+ * Alias for {@link mat4.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link mat4.subtract}
+ * @function
+ */
+export const sub = subtract;
diff --git a/js/third-party/gl-matrix/src/gl-matrix/quat.js b/js/third-party/gl-matrix/src/gl-matrix/quat.js
new file mode 100644
index 000000000..3cdf62ee3
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/quat.js
@@ -0,0 +1,631 @@
+import * as glMatrix from "./common.js"
+import * as mat3 from "./mat3.js"
+import * as vec3 from "./vec3.js"
+import * as vec4 from "./vec4.js"
+
+/**
+ * Quaternion
+ * @module quat
+ */
+
+/**
+ * Creates a new identity quat
+ *
+ * @returns {quat} a new quaternion
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+  }
+  out[3] = 1;
+  return out;
+}
+
+/**
+ * Set a quat to the identity quaternion
+ *
+ * @param {quat} out the receiving quaternion
+ * @returns {quat} out
+ */
+export function identity(out) {
+  out[0] = 0;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  return out;
+}
+
+/**
+ * Sets a quat from the given angle and rotation axis,
+ * then returns it.
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {vec3} axis the axis around which to rotate
+ * @param {Number} rad the angle in radians
+ * @returns {quat} out
+ **/
+export function setAxisAngle(out, axis, rad) {
+  rad = rad * 0.5;
+  let s = Math.sin(rad);
+  out[0] = s * axis[0];
+  out[1] = s * axis[1];
+  out[2] = s * axis[2];
+  out[3] = Math.cos(rad);
+  return out;
+}
+
+/**
+ * Gets the rotation axis and angle for a given
+ *  quaternion. If a quaternion is created with
+ *  setAxisAngle, this method will return the same
+ *  values as providied in the original parameter list
+ *  OR functionally equivalent values.
+ * Example: The quaternion formed by axis [0, 0, 1] and
+ *  angle -90 is the same as the quaternion formed by
+ *  [0, 0, 1] and 270. This method favors the latter.
+ * @param  {vec3} out_axis  Vector receiving the axis of rotation
+ * @param  {quat} q     Quaternion to be decomposed
+ * @return {Number}     Angle, in radians, of the rotation
+ */
+export function getAxisAngle(out_axis, q) {
+  let rad = Math.acos(q[3]) * 2.0;
+  let s = Math.sin(rad / 2.0);
+  if (s > glMatrix.EPSILON) {
+    out_axis[0] = q[0] / s;
+    out_axis[1] = q[1] / s;
+    out_axis[2] = q[2] / s;
+  } else {
+    // If s is zero, return any axis (no rotation - axis does not matter)
+    out_axis[0] = 1;
+    out_axis[1] = 0;
+    out_axis[2] = 0;
+  }
+  return rad;
+}
+
+/**
+ * Multiplies two quat's
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @returns {quat} out
+ */
+export function multiply(out, a, b) {
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
+
+  out[0] = ax * bw + aw * bx + ay * bz - az * by;
+  out[1] = ay * bw + aw * by + az * bx - ax * bz;
+  out[2] = az * bw + aw * bz + ax * by - ay * bx;
+  out[3] = aw * bw - ax * bx - ay * by - az * bz;
+  return out;
+}
+
+/**
+ * Rotates a quaternion by the given angle about the X axis
+ *
+ * @param {quat} out quat receiving operation result
+ * @param {quat} a quat to rotate
+ * @param {number} rad angle (in radians) to rotate
+ * @returns {quat} out
+ */
+export function rotateX(out, a, rad) {
+  rad *= 0.5;
+
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bx = Math.sin(rad), bw = Math.cos(rad);
+
+  out[0] = ax * bw + aw * bx;
+  out[1] = ay * bw + az * bx;
+  out[2] = az * bw - ay * bx;
+  out[3] = aw * bw - ax * bx;
+  return out;
+}
+
+/**
+ * Rotates a quaternion by the given angle about the Y axis
+ *
+ * @param {quat} out quat receiving operation result
+ * @param {quat} a quat to rotate
+ * @param {number} rad angle (in radians) to rotate
+ * @returns {quat} out
+ */
+export function rotateY(out, a, rad) {
+  rad *= 0.5;
+
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let by = Math.sin(rad), bw = Math.cos(rad);
+
+  out[0] = ax * bw - az * by;
+  out[1] = ay * bw + aw * by;
+  out[2] = az * bw + ax * by;
+  out[3] = aw * bw - ay * by;
+  return out;
+}
+
+/**
+ * Rotates a quaternion by the given angle about the Z axis
+ *
+ * @param {quat} out quat receiving operation result
+ * @param {quat} a quat to rotate
+ * @param {number} rad angle (in radians) to rotate
+ * @returns {quat} out
+ */
+export function rotateZ(out, a, rad) {
+  rad *= 0.5;
+
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bz = Math.sin(rad), bw = Math.cos(rad);
+
+  out[0] = ax * bw + ay * bz;
+  out[1] = ay * bw - ax * bz;
+  out[2] = az * bw + aw * bz;
+  out[3] = aw * bw - az * bz;
+  return out;
+}
+
+/**
+ * Calculates the W component of a quat from the X, Y, and Z components.
+ * Assumes that quaternion is 1 unit in length.
+ * Any existing W component will be ignored.
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a quat to calculate W component of
+ * @returns {quat} out
+ */
+export function calculateW(out, a) {
+  let x = a[0], y = a[1], z = a[2];
+
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  out[3] = Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));
+  return out;
+}
+
+/**
+ * Performs a spherical linear interpolation between two quat
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {quat} out
+ */
+export function slerp(out, a, b, t) {
+  // benchmarks:
+  //    http://jsperf.com/quaternion-slerp-implementations
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
+
+  let omega, cosom, sinom, scale0, scale1;
+
+  // calc cosine
+  cosom = ax * bx + ay * by + az * bz + aw * bw;
+  // adjust signs (if necessary)
+  if ( cosom < 0.0 ) {
+    cosom = -cosom;
+    bx = - bx;
+    by = - by;
+    bz = - bz;
+    bw = - bw;
+  }
+  // calculate coefficients
+  if ( (1.0 - cosom) > glMatrix.EPSILON ) {
+    // standard case (slerp)
+    omega  = Math.acos(cosom);
+    sinom  = Math.sin(omega);
+    scale0 = Math.sin((1.0 - t) * omega) / sinom;
+    scale1 = Math.sin(t * omega) / sinom;
+  } else {
+    // "from" and "to" quaternions are very close
+    //  ... so we can do a linear interpolation
+    scale0 = 1.0 - t;
+    scale1 = t;
+  }
+  // calculate final values
+  out[0] = scale0 * ax + scale1 * bx;
+  out[1] = scale0 * ay + scale1 * by;
+  out[2] = scale0 * az + scale1 * bz;
+  out[3] = scale0 * aw + scale1 * bw;
+
+  return out;
+}
+
+/**
+ * Generates a random quaternion
+ *
+ * @param {quat} out the receiving quaternion
+ * @returns {quat} out
+ */
+export function random(out) {
+  // Implementation of http://planning.cs.uiuc.edu/node198.html
+  // TODO: Calling random 3 times is probably not the fastest solution
+  let u1 = glMatrix.RANDOM();
+  let u2 = glMatrix.RANDOM();
+  let u3 = glMatrix.RANDOM();
+
+  let sqrt1MinusU1 = Math.sqrt(1 - u1);
+  let sqrtU1 = Math.sqrt(u1);
+
+  out[0] = sqrt1MinusU1 * Math.sin(2.0 * Math.PI * u2);
+  out[1] = sqrt1MinusU1 * Math.cos(2.0 * Math.PI * u2);
+  out[2] = sqrtU1 * Math.sin(2.0 * Math.PI * u3);
+  out[3] = sqrtU1 * Math.cos(2.0 * Math.PI * u3);
+  return out;
+}
+
+/**
+ * Calculates the inverse of a quat
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a quat to calculate inverse of
+ * @returns {quat} out
+ */
+export function invert(out, a) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let dot = a0*a0 + a1*a1 + a2*a2 + a3*a3;
+  let invDot = dot ? 1.0/dot : 0;
+
+  // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0
+
+  out[0] = -a0*invDot;
+  out[1] = -a1*invDot;
+  out[2] = -a2*invDot;
+  out[3] = a3*invDot;
+  return out;
+}
+
+/**
+ * Calculates the conjugate of a quat
+ * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a quat to calculate conjugate of
+ * @returns {quat} out
+ */
+export function conjugate(out, a) {
+  out[0] = -a[0];
+  out[1] = -a[1];
+  out[2] = -a[2];
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Creates a quaternion from the given 3x3 rotation matrix.
+ *
+ * NOTE: The resultant quaternion is not normalized, so you should be sure
+ * to renormalize the quaternion yourself where necessary.
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {mat3} m rotation matrix
+ * @returns {quat} out
+ * @function
+ */
+export function fromMat3(out, m) {
+  // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes
+  // article "Quaternion Calculus and Fast Animation".
+  let fTrace = m[0] + m[4] + m[8];
+  let fRoot;
+
+  if ( fTrace > 0.0 ) {
+    // |w| > 1/2, may as well choose w > 1/2
+    fRoot = Math.sqrt(fTrace + 1.0);  // 2w
+    out[3] = 0.5 * fRoot;
+    fRoot = 0.5/fRoot;  // 1/(4w)
+    out[0] = (m[5]-m[7])*fRoot;
+    out[1] = (m[6]-m[2])*fRoot;
+    out[2] = (m[1]-m[3])*fRoot;
+  } else {
+    // |w| <= 1/2
+    let i = 0;
+    if ( m[4] > m[0] )
+      i = 1;
+    if ( m[8] > m[i*3+i] )
+      i = 2;
+    let j = (i+1)%3;
+    let k = (i+2)%3;
+
+    fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);
+    out[i] = 0.5 * fRoot;
+    fRoot = 0.5 / fRoot;
+    out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;
+    out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;
+    out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;
+  }
+
+  return out;
+}
+
+/**
+ * Creates a quaternion from the given euler angle x, y, z.
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {x} Angle to rotate around X axis in degrees.
+ * @param {y} Angle to rotate around Y axis in degrees.
+ * @param {z} Angle to rotate around Z axis in degrees.
+ * @returns {quat} out
+ * @function
+ */
+export function fromEuler(out, x, y, z) {
+    let halfToRad = 0.5 * Math.PI / 180.0;
+    x *= halfToRad;
+    y *= halfToRad;
+    z *= halfToRad;
+
+    let sx = Math.sin(x);
+    let cx = Math.cos(x);
+    let sy = Math.sin(y);
+    let cy = Math.cos(y);
+    let sz = Math.sin(z);
+    let cz = Math.cos(z);
+
+    out[0] = sx * cy * cz - cx * sy * sz;
+    out[1] = cx * sy * cz + sx * cy * sz;
+    out[2] = cx * cy * sz - sx * sy * cz;
+    out[3] = cx * cy * cz + sx * sy * sz;
+
+    return out;
+}
+
+/**
+ * Returns a string representation of a quatenion
+ *
+ * @param {quat} a vector to represent as a string
+ * @returns {String} string representation of the vector
+ */
+export function str(a) {
+  return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
+}
+
+/**
+ * Creates a new quat initialized with values from an existing quaternion
+ *
+ * @param {quat} a quaternion to clone
+ * @returns {quat} a new quaternion
+ * @function
+ */
+export const clone = vec4.clone;
+
+/**
+ * Creates a new quat initialized with the given values
+ *
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @param {Number} w W component
+ * @returns {quat} a new quaternion
+ * @function
+ */
+export const fromValues = vec4.fromValues;
+
+/**
+ * Copy the values from one quat to another
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the source quaternion
+ * @returns {quat} out
+ * @function
+ */
+export const copy = vec4.copy;
+
+/**
+ * Set the components of a quat to the given values
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @param {Number} w W component
+ * @returns {quat} out
+ * @function
+ */
+export const set = vec4.set;
+
+/**
+ * Adds two quat's
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @returns {quat} out
+ * @function
+ */
+export const add = vec4.add;
+
+/**
+ * Alias for {@link quat.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Scales a quat by a scalar number
+ *
+ * @param {quat} out the receiving vector
+ * @param {quat} a the vector to scale
+ * @param {Number} b amount to scale the vector by
+ * @returns {quat} out
+ * @function
+ */
+export const scale = vec4.scale;
+
+/**
+ * Calculates the dot product of two quat's
+ *
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @returns {Number} dot product of a and b
+ * @function
+ */
+export const dot = vec4.dot;
+
+/**
+ * Performs a linear interpolation between two quat's
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {quat} out
+ * @function
+ */
+export const lerp = vec4.lerp;
+
+/**
+ * Calculates the length of a quat
+ *
+ * @param {quat} a vector to calculate length of
+ * @returns {Number} length of a
+ */
+export const length = vec4.length;
+
+/**
+ * Alias for {@link quat.length}
+ * @function
+ */
+export const len = length;
+
+/**
+ * Calculates the squared length of a quat
+ *
+ * @param {quat} a vector to calculate squared length of
+ * @returns {Number} squared length of a
+ * @function
+ */
+export const squaredLength = vec4.squaredLength;
+
+/**
+ * Alias for {@link quat.squaredLength}
+ * @function
+ */
+export const sqrLen = squaredLength;
+
+/**
+ * Normalize a quat
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a quaternion to normalize
+ * @returns {quat} out
+ * @function
+ */
+export const normalize = vec4.normalize;
+
+/**
+ * Returns whether or not the quaternions have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {quat} a The first quaternion.
+ * @param {quat} b The second quaternion.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export const exactEquals = vec4.exactEquals;
+
+/**
+ * Returns whether or not the quaternions have approximately the same elements in the same position.
+ *
+ * @param {quat} a The first vector.
+ * @param {quat} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export const equals = vec4.equals;
+
+/**
+ * Sets a quaternion to represent the shortest rotation from one
+ * vector to another.
+ *
+ * Both vectors are assumed to be unit length.
+ *
+ * @param {quat} out the receiving quaternion.
+ * @param {vec3} a the initial vector
+ * @param {vec3} b the destination vector
+ * @returns {quat} out
+ */
+export const rotationTo = (function() {
+  let tmpvec3 = vec3.create();
+  let xUnitVec3 = vec3.fromValues(1,0,0);
+  let yUnitVec3 = vec3.fromValues(0,1,0);
+
+  return function(out, a, b) {
+    let dot = vec3.dot(a, b);
+    if (dot < -0.999999) {
+      vec3.cross(tmpvec3, xUnitVec3, a);
+      if (vec3.len(tmpvec3) < 0.000001)
+        vec3.cross(tmpvec3, yUnitVec3, a);
+      vec3.normalize(tmpvec3, tmpvec3);
+      setAxisAngle(out, tmpvec3, Math.PI);
+      return out;
+    } else if (dot > 0.999999) {
+      out[0] = 0;
+      out[1] = 0;
+      out[2] = 0;
+      out[3] = 1;
+      return out;
+    } else {
+      vec3.cross(tmpvec3, a, b);
+      out[0] = tmpvec3[0];
+      out[1] = tmpvec3[1];
+      out[2] = tmpvec3[2];
+      out[3] = 1 + dot;
+      return normalize(out, out);
+    }
+  };
+})();
+
+/**
+ * Performs a spherical linear interpolation with two control points
+ *
+ * @param {quat} out the receiving quaternion
+ * @param {quat} a the first operand
+ * @param {quat} b the second operand
+ * @param {quat} c the third operand
+ * @param {quat} d the fourth operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {quat} out
+ */
+export const sqlerp = (function () {
+  let temp1 = create();
+  let temp2 = create();
+
+  return function (out, a, b, c, d, t) {
+    slerp(temp1, a, d, t);
+    slerp(temp2, b, c, t);
+    slerp(out, temp1, temp2, 2 * t * (1 - t));
+
+    return out;
+  };
+}());
+
+/**
+ * Sets the specified quaternion with values corresponding to the given
+ * axes. Each axis is a vec3 and is expected to be unit length and
+ * perpendicular to all other specified axes.
+ *
+ * @param {vec3} view  the vector representing the viewing direction
+ * @param {vec3} right the vector representing the local "right" direction
+ * @param {vec3} up    the vector representing the local "up" direction
+ * @returns {quat} out
+ */
+export const setAxes = (function() {
+  let matr = mat3.create();
+
+  return function(out, view, right, up) {
+    matr[0] = right[0];
+    matr[3] = right[1];
+    matr[6] = right[2];
+
+    matr[1] = up[0];
+    matr[4] = up[1];
+    matr[7] = up[2];
+
+    matr[2] = -view[0];
+    matr[5] = -view[1];
+    matr[8] = -view[2];
+
+    return normalize(out, fromMat3(out, matr));
+  };
+})();
diff --git a/js/third-party/gl-matrix/src/gl-matrix/quat2.js b/js/third-party/gl-matrix/src/gl-matrix/quat2.js
new file mode 100644
index 000000000..1840b6945
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/quat2.js
@@ -0,0 +1,854 @@
+import * as glMatrix from "./common.js";
+import * as quat from "./quat.js";
+import * as mat4 from "./mat4.js";
+
+/**
+ * Dual Quaternion<br>
+ * Format: [real, dual]<br>
+ * Quaternion format: XYZW<br>
+ * Make sure to have normalized dual quaternions, otherwise the functions may not work as intended.<br>
+ * @module quat2
+ */
+
+
+/**
+ * Creates a new identity dual quat
+ *
+ * @returns {quat2} a new dual quaternion [real -> rotation, dual -> translation]
+ */
+export function create() {
+  let dq = new glMatrix.ARRAY_TYPE(8);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    dq[0] = 0;
+    dq[1] = 0;
+    dq[2] = 0;
+    dq[4] = 0;
+    dq[5] = 0;
+    dq[6] = 0;
+    dq[7] = 0;
+  }
+  dq[3] = 1;
+  return dq;
+}
+
+/**
+ * Creates a new quat initialized with values from an existing quaternion
+ *
+ * @param {quat2} a dual quaternion to clone
+ * @returns {quat2} new dual quaternion
+ * @function
+ */
+export function clone(a) {
+  let dq = new glMatrix.ARRAY_TYPE(8);
+  dq[0] = a[0];
+  dq[1] = a[1];
+  dq[2] = a[2];
+  dq[3] = a[3];
+  dq[4] = a[4];
+  dq[5] = a[5];
+  dq[6] = a[6];
+  dq[7] = a[7];
+  return dq;
+}
+
+/**
+ * Creates a new dual quat initialized with the given values
+ *
+ * @param {Number} x1 X component
+ * @param {Number} y1 Y component
+ * @param {Number} z1 Z component
+ * @param {Number} w1 W component
+ * @param {Number} x2 X component
+ * @param {Number} y2 Y component
+ * @param {Number} z2 Z component
+ * @param {Number} w2 W component
+ * @returns {quat2} new dual quaternion
+ * @function
+ */
+export function fromValues(x1, y1, z1, w1, x2, y2, z2, w2) {
+  let dq = new glMatrix.ARRAY_TYPE(8);
+  dq[0] = x1;
+  dq[1] = y1;
+  dq[2] = z1;
+  dq[3] = w1;
+  dq[4] = x2;
+  dq[5] = y2;
+  dq[6] = z2;
+  dq[7] = w2;
+  return dq;
+}
+
+/**
+ * Creates a new dual quat from the given values (quat and translation)
+ *
+ * @param {Number} x1 X component
+ * @param {Number} y1 Y component
+ * @param {Number} z1 Z component
+ * @param {Number} w1 W component
+ * @param {Number} x2 X component (translation)
+ * @param {Number} y2 Y component (translation)
+ * @param {Number} z2 Z component (translation)
+ * @returns {quat2} new dual quaternion
+ * @function
+ */
+export function fromRotationTranslationValues(x1, y1, z1, w1, x2, y2, z2) {
+  let dq = new glMatrix.ARRAY_TYPE(8);
+  dq[0] = x1;
+  dq[1] = y1;
+  dq[2] = z1;
+  dq[3] = w1;
+  let ax = x2 * 0.5,
+    ay = y2 * 0.5,
+    az = z2 * 0.5;
+  dq[4] = ax * w1 + ay * z1 - az * y1;
+  dq[5] = ay * w1 + az * x1 - ax * z1;
+  dq[6] = az * w1 + ax * y1 - ay * x1;
+  dq[7] = -ax * x1 - ay * y1 - az * z1;
+  return dq;
+}
+
+/**
+ * Creates a dual quat from a quaternion and a translation
+ *
+ * @param {quat2} dual quaternion receiving operation result
+ * @param {quat} q quaternion
+ * @param {vec3} t tranlation vector
+ * @returns {quat2} dual quaternion receiving operation result
+ * @function
+ */
+export function fromRotationTranslation(out, q, t) {
+  let ax = t[0] * 0.5,
+    ay = t[1] * 0.5,
+    az = t[2] * 0.5,
+    bx = q[0],
+    by = q[1],
+    bz = q[2],
+    bw = q[3];
+  out[0] = bx;
+  out[1] = by;
+  out[2] = bz;
+  out[3] = bw;
+  out[4] = ax * bw + ay * bz - az * by;
+  out[5] = ay * bw + az * bx - ax * bz;
+  out[6] = az * bw + ax * by - ay * bx;
+  out[7] = -ax * bx - ay * by - az * bz;
+  return out;
+}
+
+/**
+ * Creates a dual quat from a translation
+ *
+ * @param {quat2} dual quaternion receiving operation result
+ * @param {vec3} t translation vector
+ * @returns {quat2} dual quaternion receiving operation result
+ * @function
+ */
+export function fromTranslation(out, t) {
+  out[0] = 0;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  out[4] = t[0] * 0.5;
+  out[5] = t[1] * 0.5;
+  out[6] = t[2] * 0.5;
+  out[7] = 0;
+  return out;
+}
+
+/**
+ * Creates a dual quat from a quaternion
+ *
+ * @param {quat2} dual quaternion receiving operation result
+ * @param {quat} q the quaternion
+ * @returns {quat2} dual quaternion receiving operation result
+ * @function
+ */
+export function fromRotation(out, q) {
+  out[0] = q[0];
+  out[1] = q[1];
+  out[2] = q[2];
+  out[3] = q[3];
+  out[4] = 0;
+  out[5] = 0;
+  out[6] = 0;
+  out[7] = 0;
+  return out;
+}
+
+/**
+ * Creates a new dual quat from a matrix (4x4)
+ *
+ * @param {quat2} out the dual quaternion
+ * @param {mat4} a the matrix
+ * @returns {quat2} dual quat receiving operation result
+ * @function
+ */
+export function fromMat4(out, a) {
+  //TODO Optimize this
+  let outer = quat.create();
+  mat4.getRotation(outer, a);
+  let t = new glMatrix.ARRAY_TYPE(3);
+  mat4.getTranslation(t, a);
+  fromRotationTranslation(out, outer, t);
+  return out;
+}
+
+/**
+ * Copy the values from one dual quat to another
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the source dual quaternion
+ * @returns {quat2} out
+ * @function
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  out[4] = a[4];
+  out[5] = a[5];
+  out[6] = a[6];
+  out[7] = a[7];
+  return out;
+}
+
+/**
+ * Set a dual quat to the identity dual quaternion
+ *
+ * @param {quat2} out the receiving quaternion
+ * @returns {quat2} out
+ */
+export function identity(out) {
+  out[0] = 0;
+  out[1] = 0;
+  out[2] = 0;
+  out[3] = 1;
+  out[4] = 0;
+  out[5] = 0;
+  out[6] = 0;
+  out[7] = 0;
+  return out;
+}
+
+/**
+ * Set the components of a dual quat to the given values
+ *
+ * @param {quat2} out the receiving quaternion
+ * @param {Number} x1 X component
+ * @param {Number} y1 Y component
+ * @param {Number} z1 Z component
+ * @param {Number} w1 W component
+ * @param {Number} x2 X component
+ * @param {Number} y2 Y component
+ * @param {Number} z2 Z component
+ * @param {Number} w2 W component
+ * @returns {quat2} out
+ * @function
+ */
+export function set(out, x1, y1, z1, w1, x2, y2, z2, w2) {
+  out[0] = x1;
+  out[1] = y1;
+  out[2] = z1;
+  out[3] = w1;
+
+  out[4] = x2;
+  out[5] = y2;
+  out[6] = z2;
+  out[7] = w2;
+  return out;
+}
+
+/**
+ * Gets the real part of a dual quat
+ * @param  {quat} out real part
+ * @param  {quat2} a Dual Quaternion
+ * @return {quat} real part
+ */
+export const getReal = quat.copy;
+
+/**
+ * Gets the dual part of a dual quat
+ * @param  {quat} out dual part
+ * @param  {quat2} a Dual Quaternion
+ * @return {quat} dual part
+ */
+export function getDual(out, a) {
+  out[0] = a[4];
+  out[1] = a[5];
+  out[2] = a[6];
+  out[3] = a[7];
+  return out;
+}
+
+/**
+ * Set the real component of a dual quat to the given quaternion
+ *
+ * @param {quat2} out the receiving quaternion
+ * @param {quat} q a quaternion representing the real part
+ * @returns {quat2} out
+ * @function
+ */
+export const setReal = quat.copy;
+
+/**
+ * Set the dual component of a dual quat to the given quaternion
+ *
+ * @param {quat2} out the receiving quaternion
+ * @param {quat} q a quaternion representing the dual part
+ * @returns {quat2} out
+ * @function
+ */
+export function setDual(out, q) {
+  out[4] = q[0];
+  out[5] = q[1];
+  out[6] = q[2];
+  out[7] = q[3];
+  return out;
+}
+
+/**
+ * Gets the translation of a normalized dual quat
+ * @param  {vec3} out translation
+ * @param  {quat2} a Dual Quaternion to be decomposed
+ * @return {vec3} translation
+ */
+export function getTranslation(out, a) {
+  let ax = a[4],
+    ay = a[5],
+    az = a[6],
+    aw = a[7],
+    bx = -a[0],
+    by = -a[1],
+    bz = -a[2],
+    bw = a[3];
+  out[0] = (ax * bw + aw * bx + ay * bz - az * by) * 2;
+  out[1] = (ay * bw + aw * by + az * bx - ax * bz) * 2;
+  out[2] = (az * bw + aw * bz + ax * by - ay * bx) * 2;
+  return out;
+}
+
+/**
+ * Translates a dual quat by the given vector
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to translate
+ * @param {vec3} v vector to translate by
+ * @returns {quat2} out
+ */
+export function translate(out, a, v) {
+  let ax1 = a[0],
+    ay1 = a[1],
+    az1 = a[2],
+    aw1 = a[3],
+    bx1 = v[0] * 0.5,
+    by1 = v[1] * 0.5,
+    bz1 = v[2] * 0.5,
+    ax2 = a[4],
+    ay2 = a[5],
+    az2 = a[6],
+    aw2 = a[7];
+  out[0] = ax1;
+  out[1] = ay1;
+  out[2] = az1;
+  out[3] = aw1;
+  out[4] = aw1 * bx1 + ay1 * bz1 - az1 * by1 + ax2;
+  out[5] = aw1 * by1 + az1 * bx1 - ax1 * bz1 + ay2;
+  out[6] = aw1 * bz1 + ax1 * by1 - ay1 * bx1 + az2;
+  out[7] = -ax1 * bx1 - ay1 * by1 - az1 * bz1 + aw2;
+  return out;
+}
+
+/**
+ * Rotates a dual quat around the X axis
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to rotate
+ * @param {number} rad how far should the rotation be
+ * @returns {quat2} out
+ */
+export function rotateX(out, a, rad) {
+  let bx = -a[0],
+    by = -a[1],
+    bz = -a[2],
+    bw = a[3],
+    ax = a[4],
+    ay = a[5],
+    az = a[6],
+    aw = a[7],
+    ax1 = ax * bw + aw * bx + ay * bz - az * by,
+    ay1 = ay * bw + aw * by + az * bx - ax * bz,
+    az1 = az * bw + aw * bz + ax * by - ay * bx,
+    aw1 = aw * bw - ax * bx - ay * by - az * bz;
+  quat.rotateX(out, a, rad);
+  bx = out[0];
+  by = out[1];
+  bz = out[2];
+  bw = out[3];
+  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
+  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
+  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
+  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
+  return out;
+}
+
+/**
+ * Rotates a dual quat around the Y axis
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to rotate
+ * @param {number} rad how far should the rotation be
+ * @returns {quat2} out
+ */
+export function rotateY(out, a, rad) {
+  let bx = -a[0],
+    by = -a[1],
+    bz = -a[2],
+    bw = a[3],
+    ax = a[4],
+    ay = a[5],
+    az = a[6],
+    aw = a[7],
+    ax1 = ax * bw + aw * bx + ay * bz - az * by,
+    ay1 = ay * bw + aw * by + az * bx - ax * bz,
+    az1 = az * bw + aw * bz + ax * by - ay * bx,
+    aw1 = aw * bw - ax * bx - ay * by - az * bz;
+  quat.rotateY(out, a, rad);
+  bx = out[0];
+  by = out[1];
+  bz = out[2];
+  bw = out[3];
+  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
+  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
+  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
+  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
+  return out;
+}
+
+/**
+ * Rotates a dual quat around the Z axis
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to rotate
+ * @param {number} rad how far should the rotation be
+ * @returns {quat2} out
+ */
+export function rotateZ(out, a, rad) {
+  let bx = -a[0],
+    by = -a[1],
+    bz = -a[2],
+    bw = a[3],
+    ax = a[4],
+    ay = a[5],
+    az = a[6],
+    aw = a[7],
+    ax1 = ax * bw + aw * bx + ay * bz - az * by,
+    ay1 = ay * bw + aw * by + az * bx - ax * bz,
+    az1 = az * bw + aw * bz + ax * by - ay * bx,
+    aw1 = aw * bw - ax * bx - ay * by - az * bz;
+  quat.rotateZ(out, a, rad);
+  bx = out[0];
+  by = out[1];
+  bz = out[2];
+  bw = out[3];
+  out[4] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
+  out[5] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
+  out[6] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
+  out[7] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
+  return out;
+}
+
+/**
+ * Rotates a dual quat by a given quaternion (a * q)
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to rotate
+ * @param {quat} q quaternion to rotate by
+ * @returns {quat2} out
+ */
+export function rotateByQuatAppend(out, a, q) {
+  let qx = q[0],
+    qy = q[1],
+    qz = q[2],
+    qw = q[3],
+    ax = a[0],
+    ay = a[1],
+    az = a[2],
+    aw = a[3];
+
+  out[0] = ax * qw + aw * qx + ay * qz - az * qy;
+  out[1] = ay * qw + aw * qy + az * qx - ax * qz;
+  out[2] = az * qw + aw * qz + ax * qy - ay * qx;
+  out[3] = aw * qw - ax * qx - ay * qy - az * qz;
+  ax = a[4];
+  ay = a[5];
+  az = a[6];
+  aw = a[7];
+  out[4] = ax * qw + aw * qx + ay * qz - az * qy;
+  out[5] = ay * qw + aw * qy + az * qx - ax * qz;
+  out[6] = az * qw + aw * qz + ax * qy - ay * qx;
+  out[7] = aw * qw - ax * qx - ay * qy - az * qz;
+  return out;
+}
+
+/**
+ * Rotates a dual quat by a given quaternion (q * a)
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat} q quaternion to rotate by
+ * @param {quat2} a the dual quaternion to rotate
+ * @returns {quat2} out
+ */
+export function rotateByQuatPrepend(out, q, a) {
+  let qx = q[0],
+    qy = q[1],
+    qz = q[2],
+    qw = q[3],
+    bx = a[0],
+    by = a[1],
+    bz = a[2],
+    bw = a[3];
+
+  out[0] = qx * bw + qw * bx + qy * bz - qz * by;
+  out[1] = qy * bw + qw * by + qz * bx - qx * bz;
+  out[2] = qz * bw + qw * bz + qx * by - qy * bx;
+  out[3] = qw * bw - qx * bx - qy * by - qz * bz;
+  bx = a[4];
+  by = a[5];
+  bz = a[6];
+  bw = a[7];
+  out[4] = qx * bw + qw * bx + qy * bz - qz * by;
+  out[5] = qy * bw + qw * by + qz * bx - qx * bz;
+  out[6] = qz * bw + qw * bz + qx * by - qy * bx;
+  out[7] = qw * bw - qx * bx - qy * by - qz * bz;
+  return out;
+}
+
+/**
+ * Rotates a dual quat around a given axis. Does the normalisation automatically
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the dual quaternion to rotate
+ * @param {vec3} axis the axis to rotate around
+ * @param {Number} rad how far the rotation should be
+ * @returns {quat2} out
+ */
+export function rotateAroundAxis(out, a, axis, rad) {
+  //Special case for rad = 0
+  if (Math.abs(rad) < glMatrix.EPSILON) {
+    return copy(out, a);
+  }
+  let axisLength = Math.sqrt(axis[0] * axis[0] + axis[1] * axis[1] + axis[2] * axis[2]);
+
+  rad = rad * 0.5;
+  let s = Math.sin(rad);
+  let bx = s * axis[0] / axisLength;
+  let by = s * axis[1] / axisLength;
+  let bz = s * axis[2] / axisLength;
+  let bw = Math.cos(rad);
+
+  let ax1 = a[0],
+    ay1 = a[1],
+    az1 = a[2],
+    aw1 = a[3];
+  out[0] = ax1 * bw + aw1 * bx + ay1 * bz - az1 * by;
+  out[1] = ay1 * bw + aw1 * by + az1 * bx - ax1 * bz;
+  out[2] = az1 * bw + aw1 * bz + ax1 * by - ay1 * bx;
+  out[3] = aw1 * bw - ax1 * bx - ay1 * by - az1 * bz;
+
+  let ax = a[4],
+    ay = a[5],
+    az = a[6],
+    aw = a[7];
+  out[4] = ax * bw + aw * bx + ay * bz - az * by;
+  out[5] = ay * bw + aw * by + az * bx - ax * bz;
+  out[6] = az * bw + aw * bz + ax * by - ay * bx;
+  out[7] = aw * bw - ax * bx - ay * by - az * bz;
+
+  return out;
+}
+
+/**
+ * Adds two dual quat's
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the first operand
+ * @param {quat2} b the second operand
+ * @returns {quat2} out
+ * @function
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  out[4] = a[4] + b[4];
+  out[5] = a[5] + b[5];
+  out[6] = a[6] + b[6];
+  out[7] = a[7] + b[7];
+  return out;
+}
+
+/**
+ * Multiplies two dual quat's
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a the first operand
+ * @param {quat2} b the second operand
+ * @returns {quat2} out
+ */
+export function multiply(out, a, b) {
+  let ax0 = a[0],
+    ay0 = a[1],
+    az0 = a[2],
+    aw0 = a[3],
+    bx1 = b[4],
+    by1 = b[5],
+    bz1 = b[6],
+    bw1 = b[7],
+    ax1 = a[4],
+    ay1 = a[5],
+    az1 = a[6],
+    aw1 = a[7],
+    bx0 = b[0],
+    by0 = b[1],
+    bz0 = b[2],
+    bw0 = b[3];
+  out[0] = ax0 * bw0 + aw0 * bx0 + ay0 * bz0 - az0 * by0;
+  out[1] = ay0 * bw0 + aw0 * by0 + az0 * bx0 - ax0 * bz0;
+  out[2] = az0 * bw0 + aw0 * bz0 + ax0 * by0 - ay0 * bx0;
+  out[3] = aw0 * bw0 - ax0 * bx0 - ay0 * by0 - az0 * bz0;
+  out[4] = ax0 * bw1 + aw0 * bx1 + ay0 * bz1 - az0 * by1 + ax1 * bw0 + aw1 * bx0 + ay1 * bz0 - az1 * by0;
+  out[5] = ay0 * bw1 + aw0 * by1 + az0 * bx1 - ax0 * bz1 + ay1 * bw0 + aw1 * by0 + az1 * bx0 - ax1 * bz0;
+  out[6] = az0 * bw1 + aw0 * bz1 + ax0 * by1 - ay0 * bx1 + az1 * bw0 + aw1 * bz0 + ax1 * by0 - ay1 * bx0;
+  out[7] = aw0 * bw1 - ax0 * bx1 - ay0 * by1 - az0 * bz1 + aw1 * bw0 - ax1 * bx0 - ay1 * by0 - az1 * bz0;
+  return out;
+}
+
+/**
+ * Alias for {@link quat2.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Scales a dual quat by a scalar number
+ *
+ * @param {quat2} out the receiving dual quat
+ * @param {quat2} a the dual quat to scale
+ * @param {Number} b amount to scale the dual quat by
+ * @returns {quat2} out
+ * @function
+ */
+export function scale(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  out[4] = a[4] * b;
+  out[5] = a[5] * b;
+  out[6] = a[6] * b;
+  out[7] = a[7] * b;
+  return out;
+}
+
+/**
+ * Calculates the dot product of two dual quat's (The dot product of the real parts)
+ *
+ * @param {quat2} a the first operand
+ * @param {quat2} b the second operand
+ * @returns {Number} dot product of a and b
+ * @function
+ */
+export const dot = quat.dot;
+
+/**
+ * Performs a linear interpolation between two dual quats's
+ * NOTE: The resulting dual quaternions won't always be normalized (The error is most noticeable when t = 0.5)
+ *
+ * @param {quat2} out the receiving dual quat
+ * @param {quat2} a the first operand
+ * @param {quat2} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {quat2} out
+ */
+export function lerp(out, a, b, t) {
+  let mt = 1 - t;
+  if (dot(a, b) < 0) t = -t;
+
+  out[0] = a[0] * mt + b[0] * t;
+  out[1] = a[1] * mt + b[1] * t;
+  out[2] = a[2] * mt + b[2] * t;
+  out[3] = a[3] * mt + b[3] * t;
+  out[4] = a[4] * mt + b[4] * t;
+  out[5] = a[5] * mt + b[5] * t;
+  out[6] = a[6] * mt + b[6] * t;
+  out[7] = a[7] * mt + b[7] * t;
+
+  return out;
+}
+
+/**
+ * Calculates the inverse of a dual quat. If they are normalized, conjugate is cheaper
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a dual quat to calculate inverse of
+ * @returns {quat2} out
+ */
+export function invert(out, a) {
+  let sqlen = squaredLength(a);
+  out[0] = -a[0] / sqlen;
+  out[1] = -a[1] / sqlen;
+  out[2] = -a[2] / sqlen;
+  out[3] = a[3] / sqlen;
+  out[4] = -a[4] / sqlen;
+  out[5] = -a[5] / sqlen;
+  out[6] = -a[6] / sqlen;
+  out[7] = a[7] / sqlen;
+  return out;
+}
+
+/**
+ * Calculates the conjugate of a dual quat
+ * If the dual quaternion is normalized, this function is faster than quat2.inverse and produces the same result.
+ *
+ * @param {quat2} out the receiving quaternion
+ * @param {quat2} a quat to calculate conjugate of
+ * @returns {quat2} out
+ */
+export function conjugate(out, a) {
+  out[0] = -a[0];
+  out[1] = -a[1];
+  out[2] = -a[2];
+  out[3] = a[3];
+  out[4] = -a[4];
+  out[5] = -a[5];
+  out[6] = -a[6];
+  out[7] = a[7];
+  return out;
+}
+
+/**
+ * Calculates the length of a dual quat
+ *
+ * @param {quat2} a dual quat to calculate length of
+ * @returns {Number} length of a
+ * @function
+ */
+export const length = quat.length;
+
+/**
+ * Alias for {@link quat2.length}
+ * @function
+ */
+export const len = length;
+
+/**
+ * Calculates the squared length of a dual quat
+ *
+ * @param {quat2} a dual quat to calculate squared length of
+ * @returns {Number} squared length of a
+ * @function
+ */
+export const squaredLength = quat.squaredLength;
+
+/**
+ * Alias for {@link quat2.squaredLength}
+ * @function
+ */
+export const sqrLen = squaredLength;
+
+/**
+ * Normalize a dual quat
+ *
+ * @param {quat2} out the receiving dual quaternion
+ * @param {quat2} a dual quaternion to normalize
+ * @returns {quat2} out
+ * @function
+ */
+export function normalize(out, a) {
+  let magnitude = squaredLength(a);
+  if (magnitude > 0) {
+    magnitude = Math.sqrt(magnitude);
+
+    let a0 = a[0] / magnitude;
+    let a1 = a[1] / magnitude;
+    let a2 = a[2] / magnitude;
+    let a3 = a[3] / magnitude;
+
+    let b0 = a[4];
+    let b1 = a[5];
+    let b2 = a[6];
+    let b3 = a[7];
+
+    let a_dot_b = (a0 * b0) + (a1 * b1) + (a2 * b2) + (a3 * b3);
+
+    out[0] = a0;
+    out[1] = a1;
+    out[2] = a2;
+    out[3] = a3;
+
+    out[4] = (b0 - (a0 * a_dot_b)) / magnitude;
+    out[5] = (b1 - (a1 * a_dot_b)) / magnitude;
+    out[6] = (b2 - (a2 * a_dot_b)) / magnitude;
+    out[7] = (b3 - (a3 * a_dot_b)) / magnitude;
+  }
+  return out;
+}
+
+/**
+ * Returns a string representation of a dual quatenion
+ *
+ * @param {quat2} a dual quaternion to represent as a string
+ * @returns {String} string representation of the dual quat
+ */
+export function str(a) {
+  return 'quat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
+    a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ')';
+}
+
+/**
+ * Returns whether or not the dual quaternions have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {quat2} a the first dual quaternion.
+ * @param {quat2} b the second dual quaternion.
+ * @returns {Boolean} true if the dual quaternions are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3] &&
+    a[4] === b[4] && a[5] === b[5] && a[6] === b[6] && a[7] === b[7];
+}
+
+/**
+ * Returns whether or not the dual quaternions have approximately the same elements in the same position.
+ *
+ * @param {quat2} a the first dual quat.
+ * @param {quat2} b the second dual quat.
+ * @returns {Boolean} true if the dual quats are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0],
+    a1 = a[1],
+    a2 = a[2],
+    a3 = a[3],
+    a4 = a[4],
+    a5 = a[5],
+    a6 = a[6],
+    a7 = a[7];
+  let b0 = b[0],
+    b1 = b[1],
+    b2 = b[2],
+    b3 = b[3],
+    b4 = b[4],
+    b5 = b[5],
+    b6 = b[6],
+    b7 = b[7];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+    Math.abs(a1 - b1) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+    Math.abs(a2 - b2) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+    Math.abs(a3 - b3) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a3), Math.abs(b3)) &&
+    Math.abs(a4 - b4) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a4), Math.abs(b4)) &&
+    Math.abs(a5 - b5) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a5), Math.abs(b5)) &&
+    Math.abs(a6 - b6) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a6), Math.abs(b6)) &&
+    Math.abs(a7 - b7) <= glMatrix.EPSILON * Math.max(1.0, Math.abs(a7), Math.abs(b7)));
+}
diff --git a/js/third-party/gl-matrix/src/gl-matrix/vec2.js b/js/third-party/gl-matrix/src/gl-matrix/vec2.js
new file mode 100644
index 000000000..1eccbda80
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/vec2.js
@@ -0,0 +1,625 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 2 Dimensional Vector
+ * @module vec2
+ */
+
+/**
+ * Creates a new, empty vec2
+ *
+ * @returns {vec2} a new 2D vector
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(2);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+  }
+  return out;
+}
+
+/**
+ * Creates a new vec2 initialized with values from an existing vector
+ *
+ * @param {vec2} a vector to clone
+ * @returns {vec2} a new 2D vector
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(2);
+  out[0] = a[0];
+  out[1] = a[1];
+  return out;
+}
+
+/**
+ * Creates a new vec2 initialized with the given values
+ *
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @returns {vec2} a new 2D vector
+ */
+export function fromValues(x, y) {
+  let out = new glMatrix.ARRAY_TYPE(2);
+  out[0] = x;
+  out[1] = y;
+  return out;
+}
+
+/**
+ * Copy the values from one vec2 to another
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the source vector
+ * @returns {vec2} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  return out;
+}
+
+/**
+ * Set the components of a vec2 to the given values
+ *
+ * @param {vec2} out the receiving vector
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @returns {vec2} out
+ */
+export function set(out, x, y) {
+  out[0] = x;
+  out[1] = y;
+  return out;
+}
+
+/**
+ * Adds two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  return out;
+}
+
+/**
+ * Subtracts vector b from vector a
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  return out;
+}
+
+/**
+ * Multiplies two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function multiply(out, a, b) {
+  out[0] = a[0] * b[0];
+  out[1] = a[1] * b[1];
+  return out;
+}
+
+/**
+ * Divides two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function divide(out, a, b) {
+  out[0] = a[0] / b[0];
+  out[1] = a[1] / b[1];
+  return out;
+}
+
+/**
+ * Math.ceil the components of a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to ceil
+ * @returns {vec2} out
+ */
+export function ceil(out, a) {
+  out[0] = Math.ceil(a[0]);
+  out[1] = Math.ceil(a[1]);
+  return out;
+}
+
+/**
+ * Math.floor the components of a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to floor
+ * @returns {vec2} out
+ */
+export function floor(out, a) {
+  out[0] = Math.floor(a[0]);
+  out[1] = Math.floor(a[1]);
+  return out;
+}
+
+/**
+ * Returns the minimum of two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function min(out, a, b) {
+  out[0] = Math.min(a[0], b[0]);
+  out[1] = Math.min(a[1], b[1]);
+  return out;
+}
+
+/**
+ * Returns the maximum of two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec2} out
+ */
+export function max(out, a, b) {
+  out[0] = Math.max(a[0], b[0]);
+  out[1] = Math.max(a[1], b[1]);
+  return out;
+}
+
+/**
+ * Math.round the components of a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to round
+ * @returns {vec2} out
+ */
+export function round (out, a) {
+  out[0] = Math.round(a[0]);
+  out[1] = Math.round(a[1]);
+  return out;
+}
+
+/**
+ * Scales a vec2 by a scalar number
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the vector to scale
+ * @param {Number} b amount to scale the vector by
+ * @returns {vec2} out
+ */
+export function scale(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  return out;
+}
+
+/**
+ * Adds two vec2's after scaling the second operand by a scalar value
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @param {Number} scale the amount to scale b by before adding
+ * @returns {vec2} out
+ */
+export function scaleAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  return out;
+}
+
+/**
+ * Calculates the euclidian distance between two vec2's
+ *
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {Number} distance between a and b
+ */
+export function distance(a, b) {
+  var x = b[0] - a[0],
+    y = b[1] - a[1];
+  return Math.sqrt(x*x + y*y);
+}
+
+/**
+ * Calculates the squared euclidian distance between two vec2's
+ *
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {Number} squared distance between a and b
+ */
+export function squaredDistance(a, b) {
+  var x = b[0] - a[0],
+    y = b[1] - a[1];
+  return x*x + y*y;
+}
+
+/**
+ * Calculates the length of a vec2
+ *
+ * @param {vec2} a vector to calculate length of
+ * @returns {Number} length of a
+ */
+export function length(a) {
+  var x = a[0],
+    y = a[1];
+  return Math.sqrt(x*x + y*y);
+}
+
+/**
+ * Calculates the squared length of a vec2
+ *
+ * @param {vec2} a vector to calculate squared length of
+ * @returns {Number} squared length of a
+ */
+export function squaredLength (a) {
+  var x = a[0],
+    y = a[1];
+  return x*x + y*y;
+}
+
+/**
+ * Negates the components of a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to negate
+ * @returns {vec2} out
+ */
+export function negate(out, a) {
+  out[0] = -a[0];
+  out[1] = -a[1];
+  return out;
+}
+
+/**
+ * Returns the inverse of the components of a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to invert
+ * @returns {vec2} out
+ */
+export function inverse(out, a) {
+  out[0] = 1.0 / a[0];
+  out[1] = 1.0 / a[1];
+  return out;
+}
+
+/**
+ * Normalize a vec2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a vector to normalize
+ * @returns {vec2} out
+ */
+export function normalize(out, a) {
+  var x = a[0],
+    y = a[1];
+  var len = x*x + y*y;
+  if (len > 0) {
+    //TODO: evaluate use of glm_invsqrt here?
+    len = 1 / Math.sqrt(len);
+    out[0] = a[0] * len;
+    out[1] = a[1] * len;
+  }
+  return out;
+}
+
+/**
+ * Calculates the dot product of two vec2's
+ *
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {Number} dot product of a and b
+ */
+export function dot(a, b) {
+  return a[0] * b[0] + a[1] * b[1];
+}
+
+/**
+ * Computes the cross product of two vec2's
+ * Note that the cross product must by definition produce a 3D vector
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @returns {vec3} out
+ */
+export function cross(out, a, b) {
+  var z = a[0] * b[1] - a[1] * b[0];
+  out[0] = out[1] = 0;
+  out[2] = z;
+  return out;
+}
+
+/**
+ * Performs a linear interpolation between two vec2's
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the first operand
+ * @param {vec2} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {vec2} out
+ */
+export function lerp(out, a, b, t) {
+  var ax = a[0],
+    ay = a[1];
+  out[0] = ax + t * (b[0] - ax);
+  out[1] = ay + t * (b[1] - ay);
+  return out;
+}
+
+/**
+ * Generates a random vector with the given scale
+ *
+ * @param {vec2} out the receiving vector
+ * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
+ * @returns {vec2} out
+ */
+export function random(out, scale) {
+  scale = scale || 1.0;
+  var r = glMatrix.RANDOM() * 2.0 * Math.PI;
+  out[0] = Math.cos(r) * scale;
+  out[1] = Math.sin(r) * scale;
+  return out;
+}
+
+/**
+ * Transforms the vec2 with a mat2
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the vector to transform
+ * @param {mat2} m matrix to transform with
+ * @returns {vec2} out
+ */
+export function transformMat2(out, a, m) {
+  var x = a[0],
+    y = a[1];
+  out[0] = m[0] * x + m[2] * y;
+  out[1] = m[1] * x + m[3] * y;
+  return out;
+}
+
+/**
+ * Transforms the vec2 with a mat2d
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the vector to transform
+ * @param {mat2d} m matrix to transform with
+ * @returns {vec2} out
+ */
+export function transformMat2d(out, a, m) {
+  var x = a[0],
+    y = a[1];
+  out[0] = m[0] * x + m[2] * y + m[4];
+  out[1] = m[1] * x + m[3] * y + m[5];
+  return out;
+}
+
+/**
+ * Transforms the vec2 with a mat3
+ * 3rd vector component is implicitly '1'
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the vector to transform
+ * @param {mat3} m matrix to transform with
+ * @returns {vec2} out
+ */
+export function transformMat3(out, a, m) {
+  var x = a[0],
+    y = a[1];
+  out[0] = m[0] * x + m[3] * y + m[6];
+  out[1] = m[1] * x + m[4] * y + m[7];
+  return out;
+}
+
+/**
+ * Transforms the vec2 with a mat4
+ * 3rd vector component is implicitly '0'
+ * 4th vector component is implicitly '1'
+ *
+ * @param {vec2} out the receiving vector
+ * @param {vec2} a the vector to transform
+ * @param {mat4} m matrix to transform with
+ * @returns {vec2} out
+ */
+export function transformMat4(out, a, m) {
+  let x = a[0];
+  let y = a[1];
+  out[0] = m[0] * x + m[4] * y + m[12];
+  out[1] = m[1] * x + m[5] * y + m[13];
+  return out;
+}
+
+/**
+ * Rotate a 2D vector
+ * @param {vec2} out The receiving vec2
+ * @param {vec2} a The vec2 point to rotate
+ * @param {vec2} b The origin of the rotation
+ * @param {Number} c The angle of rotation
+ * @returns {vec2} out
+ */
+export function rotate(out, a, b, c) {
+  //Translate point to the origin
+  let p0 = a[0] - b[0],
+  p1 = a[1] - b[1],
+  sinC = Math.sin(c),
+  cosC = Math.cos(c);
+  
+  //perform rotation and translate to correct position
+  out[0] = p0*cosC - p1*sinC + b[0];
+  out[1] = p0*sinC + p1*cosC + b[1];
+
+  return out;
+}
+
+/**
+ * Get the angle between two 2D vectors
+ * @param {vec2} a The first operand
+ * @param {vec2} b The second operand
+ * @returns {Number} The angle in radians
+ */
+export function angle(a, b) {
+  let x1 = a[0],
+    y1 = a[1],
+    x2 = b[0],
+    y2 = b[1];
+  
+  let len1 = x1*x1 + y1*y1;
+  if (len1 > 0) {
+    //TODO: evaluate use of glm_invsqrt here?
+    len1 = 1 / Math.sqrt(len1);
+  }
+  
+  let len2 = x2*x2 + y2*y2;
+  if (len2 > 0) {
+    //TODO: evaluate use of glm_invsqrt here?
+    len2 = 1 / Math.sqrt(len2);
+  }
+  
+  let cosine = (x1 * x2 + y1 * y2) * len1 * len2;
+  
+  
+  if(cosine > 1.0) {
+    return 0;
+  }
+  else if(cosine < -1.0) {
+    return Math.PI;
+  } else {
+    return Math.acos(cosine);
+  }
+}
+
+/**
+ * Returns a string representation of a vector
+ *
+ * @param {vec2} a vector to represent as a string
+ * @returns {String} string representation of the vector
+ */
+export function str(a) {
+  return 'vec2(' + a[0] + ', ' + a[1] + ')';
+}
+
+/**
+ * Returns whether or not the vectors exactly have the same elements in the same position (when compared with ===)
+ *
+ * @param {vec2} a The first vector.
+ * @param {vec2} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1];
+}
+
+/**
+ * Returns whether or not the vectors have approximately the same elements in the same position.
+ *
+ * @param {vec2} a The first vector.
+ * @param {vec2} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1];
+  let b0 = b[0], b1 = b[1];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)));
+}
+
+/**
+ * Alias for {@link vec2.length}
+ * @function
+ */
+export const len = length;
+
+/**
+ * Alias for {@link vec2.subtract}
+ * @function
+ */
+export const sub = subtract;
+
+/**
+ * Alias for {@link vec2.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link vec2.divide}
+ * @function
+ */
+export const div = divide;
+
+/**
+ * Alias for {@link vec2.distance}
+ * @function
+ */
+export const dist = distance;
+
+/**
+ * Alias for {@link vec2.squaredDistance}
+ * @function
+ */
+export const sqrDist = squaredDistance;
+
+/**
+ * Alias for {@link vec2.squaredLength}
+ * @function
+ */
+export const sqrLen = squaredLength;
+
+/**
+ * Perform some operation over an array of vec2s.
+ *
+ * @param {Array} a the array of vectors to iterate over
+ * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed
+ * @param {Number} offset Number of elements to skip at the beginning of the array
+ * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
+ * @param {Function} fn Function to call for each vector in the array
+ * @param {Object} [arg] additional argument to pass to fn
+ * @returns {Array} a
+ * @function
+ */
+export const forEach = (function() {
+  let vec = create();
+
+  return function(a, stride, offset, count, fn, arg) {
+    let i, l;
+    if(!stride) {
+      stride = 2;
+    }
+
+    if(!offset) {
+      offset = 0;
+    }
+
+    if(count) {
+      l = Math.min((count * stride) + offset, a.length);
+    } else {
+      l = a.length;
+    }
+
+    for(i = offset; i < l; i += stride) {
+      vec[0] = a[i]; vec[1] = a[i+1];
+      fn(vec, vec, arg);
+      a[i] = vec[0]; a[i+1] = vec[1];
+    }
+
+    return a;
+  };
+})();
diff --git a/js/third-party/gl-matrix/src/gl-matrix/vec3.js b/js/third-party/gl-matrix/src/gl-matrix/vec3.js
new file mode 100644
index 000000000..e9ab0dc93
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/vec3.js
@@ -0,0 +1,769 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 3 Dimensional Vector
+ * @module vec3
+ */
+
+/**
+ * Creates a new, empty vec3
+ *
+ * @returns {vec3} a new 3D vector
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(3);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+  }
+  return out;
+}
+
+/**
+ * Creates a new vec3 initialized with values from an existing vector
+ *
+ * @param {vec3} a vector to clone
+ * @returns {vec3} a new 3D vector
+ */
+export function clone(a) {
+  var out = new glMatrix.ARRAY_TYPE(3);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  return out;
+}
+
+/**
+ * Calculates the length of a vec3
+ *
+ * @param {vec3} a vector to calculate length of
+ * @returns {Number} length of a
+ */
+export function length(a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  return Math.sqrt(x*x + y*y + z*z);
+}
+
+/**
+ * Creates a new vec3 initialized with the given values
+ *
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @returns {vec3} a new 3D vector
+ */
+export function fromValues(x, y, z) {
+  let out = new glMatrix.ARRAY_TYPE(3);
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  return out;
+}
+
+/**
+ * Copy the values from one vec3 to another
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the source vector
+ * @returns {vec3} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  return out;
+}
+
+/**
+ * Set the components of a vec3 to the given values
+ *
+ * @param {vec3} out the receiving vector
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @returns {vec3} out
+ */
+export function set(out, x, y, z) {
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  return out;
+}
+
+/**
+ * Adds two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  return out;
+}
+
+/**
+ * Subtracts vector b from vector a
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  return out;
+}
+
+/**
+ * Multiplies two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function multiply(out, a, b) {
+  out[0] = a[0] * b[0];
+  out[1] = a[1] * b[1];
+  out[2] = a[2] * b[2];
+  return out;
+}
+
+/**
+ * Divides two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function divide(out, a, b) {
+  out[0] = a[0] / b[0];
+  out[1] = a[1] / b[1];
+  out[2] = a[2] / b[2];
+  return out;
+}
+
+/**
+ * Math.ceil the components of a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to ceil
+ * @returns {vec3} out
+ */
+export function ceil(out, a) {
+  out[0] = Math.ceil(a[0]);
+  out[1] = Math.ceil(a[1]);
+  out[2] = Math.ceil(a[2]);
+  return out;
+}
+
+/**
+ * Math.floor the components of a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to floor
+ * @returns {vec3} out
+ */
+export function floor(out, a) {
+  out[0] = Math.floor(a[0]);
+  out[1] = Math.floor(a[1]);
+  out[2] = Math.floor(a[2]);
+  return out;
+}
+
+/**
+ * Returns the minimum of two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function min(out, a, b) {
+  out[0] = Math.min(a[0], b[0]);
+  out[1] = Math.min(a[1], b[1]);
+  out[2] = Math.min(a[2], b[2]);
+  return out;
+}
+
+/**
+ * Returns the maximum of two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function max(out, a, b) {
+  out[0] = Math.max(a[0], b[0]);
+  out[1] = Math.max(a[1], b[1]);
+  out[2] = Math.max(a[2], b[2]);
+  return out;
+}
+
+/**
+ * Math.round the components of a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to round
+ * @returns {vec3} out
+ */
+export function round(out, a) {
+  out[0] = Math.round(a[0]);
+  out[1] = Math.round(a[1]);
+  out[2] = Math.round(a[2]);
+  return out;
+}
+
+/**
+ * Scales a vec3 by a scalar number
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the vector to scale
+ * @param {Number} b amount to scale the vector by
+ * @returns {vec3} out
+ */
+export function scale(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  return out;
+}
+
+/**
+ * Adds two vec3's after scaling the second operand by a scalar value
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @param {Number} scale the amount to scale b by before adding
+ * @returns {vec3} out
+ */
+export function scaleAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  return out;
+}
+
+/**
+ * Calculates the euclidian distance between two vec3's
+ *
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {Number} distance between a and b
+ */
+export function distance(a, b) {
+  let x = b[0] - a[0];
+  let y = b[1] - a[1];
+  let z = b[2] - a[2];
+  return Math.sqrt(x*x + y*y + z*z);
+}
+
+/**
+ * Calculates the squared euclidian distance between two vec3's
+ *
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {Number} squared distance between a and b
+ */
+export function squaredDistance(a, b) {
+  let x = b[0] - a[0];
+  let y = b[1] - a[1];
+  let z = b[2] - a[2];
+  return x*x + y*y + z*z;
+}
+
+/**
+ * Calculates the squared length of a vec3
+ *
+ * @param {vec3} a vector to calculate squared length of
+ * @returns {Number} squared length of a
+ */
+export function squaredLength(a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  return x*x + y*y + z*z;
+}
+
+/**
+ * Negates the components of a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to negate
+ * @returns {vec3} out
+ */
+export function negate(out, a) {
+  out[0] = -a[0];
+  out[1] = -a[1];
+  out[2] = -a[2];
+  return out;
+}
+
+/**
+ * Returns the inverse of the components of a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to invert
+ * @returns {vec3} out
+ */
+export function inverse(out, a) {
+  out[0] = 1.0 / a[0];
+  out[1] = 1.0 / a[1];
+  out[2] = 1.0 / a[2];
+  return out;
+}
+
+/**
+ * Normalize a vec3
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a vector to normalize
+ * @returns {vec3} out
+ */
+export function normalize(out, a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let len = x*x + y*y + z*z;
+  if (len > 0) {
+    //TODO: evaluate use of glm_invsqrt here?
+    len = 1 / Math.sqrt(len);
+    out[0] = a[0] * len;
+    out[1] = a[1] * len;
+    out[2] = a[2] * len;
+  }
+  return out;
+}
+
+/**
+ * Calculates the dot product of two vec3's
+ *
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {Number} dot product of a and b
+ */
+export function dot(a, b) {
+  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+}
+
+/**
+ * Computes the cross product of two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @returns {vec3} out
+ */
+export function cross(out, a, b) {
+  let ax = a[0], ay = a[1], az = a[2];
+  let bx = b[0], by = b[1], bz = b[2];
+
+  out[0] = ay * bz - az * by;
+  out[1] = az * bx - ax * bz;
+  out[2] = ax * by - ay * bx;
+  return out;
+}
+
+/**
+ * Performs a linear interpolation between two vec3's
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {vec3} out
+ */
+export function lerp(out, a, b, t) {
+  let ax = a[0];
+  let ay = a[1];
+  let az = a[2];
+  out[0] = ax + t * (b[0] - ax);
+  out[1] = ay + t * (b[1] - ay);
+  out[2] = az + t * (b[2] - az);
+  return out;
+}
+
+/**
+ * Performs a hermite interpolation with two control points
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @param {vec3} c the third operand
+ * @param {vec3} d the fourth operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {vec3} out
+ */
+export function hermite(out, a, b, c, d, t) {
+  let factorTimes2 = t * t;
+  let factor1 = factorTimes2 * (2 * t - 3) + 1;
+  let factor2 = factorTimes2 * (t - 2) + t;
+  let factor3 = factorTimes2 * (t - 1);
+  let factor4 = factorTimes2 * (3 - 2 * t);
+
+  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;
+  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;
+  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;
+
+  return out;
+}
+
+/**
+ * Performs a bezier interpolation with two control points
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the first operand
+ * @param {vec3} b the second operand
+ * @param {vec3} c the third operand
+ * @param {vec3} d the fourth operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {vec3} out
+ */
+export function bezier(out, a, b, c, d, t) {
+  let inverseFactor = 1 - t;
+  let inverseFactorTimesTwo = inverseFactor * inverseFactor;
+  let factorTimes2 = t * t;
+  let factor1 = inverseFactorTimesTwo * inverseFactor;
+  let factor2 = 3 * t * inverseFactorTimesTwo;
+  let factor3 = 3 * factorTimes2 * inverseFactor;
+  let factor4 = factorTimes2 * t;
+
+  out[0] = a[0] * factor1 + b[0] * factor2 + c[0] * factor3 + d[0] * factor4;
+  out[1] = a[1] * factor1 + b[1] * factor2 + c[1] * factor3 + d[1] * factor4;
+  out[2] = a[2] * factor1 + b[2] * factor2 + c[2] * factor3 + d[2] * factor4;
+
+  return out;
+}
+
+/**
+ * Generates a random vector with the given scale
+ *
+ * @param {vec3} out the receiving vector
+ * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
+ * @returns {vec3} out
+ */
+export function random(out, scale) {
+  scale = scale || 1.0;
+
+  let r = glMatrix.RANDOM() * 2.0 * Math.PI;
+  let z = (glMatrix.RANDOM() * 2.0) - 1.0;
+  let zScale = Math.sqrt(1.0-z*z) * scale;
+
+  out[0] = Math.cos(r) * zScale;
+  out[1] = Math.sin(r) * zScale;
+  out[2] = z * scale;
+  return out;
+}
+
+/**
+ * Transforms the vec3 with a mat4.
+ * 4th vector component is implicitly '1'
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the vector to transform
+ * @param {mat4} m matrix to transform with
+ * @returns {vec3} out
+ */
+export function transformMat4(out, a, m) {
+  let x = a[0], y = a[1], z = a[2];
+  let w = m[3] * x + m[7] * y + m[11] * z + m[15];
+  w = w || 1.0;
+  out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;
+  out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;
+  out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;
+  return out;
+}
+
+/**
+ * Transforms the vec3 with a mat3.
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the vector to transform
+ * @param {mat3} m the 3x3 matrix to transform with
+ * @returns {vec3} out
+ */
+export function transformMat3(out, a, m) {
+  let x = a[0], y = a[1], z = a[2];
+  out[0] = x * m[0] + y * m[3] + z * m[6];
+  out[1] = x * m[1] + y * m[4] + z * m[7];
+  out[2] = x * m[2] + y * m[5] + z * m[8];
+  return out;
+}
+
+/**
+ * Transforms the vec3 with a quat
+ * Can also be used for dual quaternions. (Multiply it with the real part)
+ *
+ * @param {vec3} out the receiving vector
+ * @param {vec3} a the vector to transform
+ * @param {quat} q quaternion to transform with
+ * @returns {vec3} out
+ */
+export function transformQuat(out, a, q) {
+    // benchmarks: https://jsperf.com/quaternion-transform-vec3-implementations-fixed
+    let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
+    let x = a[0], y = a[1], z = a[2];
+    // var qvec = [qx, qy, qz];
+    // var uv = vec3.cross([], qvec, a);
+    let uvx = qy * z - qz * y,
+        uvy = qz * x - qx * z,
+        uvz = qx * y - qy * x;
+    // var uuv = vec3.cross([], qvec, uv);
+    let uuvx = qy * uvz - qz * uvy,
+        uuvy = qz * uvx - qx * uvz,
+        uuvz = qx * uvy - qy * uvx;
+    // vec3.scale(uv, uv, 2 * w);
+    let w2 = qw * 2;
+    uvx *= w2;
+    uvy *= w2;
+    uvz *= w2;
+    // vec3.scale(uuv, uuv, 2);
+    uuvx *= 2;
+    uuvy *= 2;
+    uuvz *= 2;
+    // return vec3.add(out, a, vec3.add(out, uv, uuv));
+    out[0] = x + uvx + uuvx;
+    out[1] = y + uvy + uuvy;
+    out[2] = z + uvz + uuvz;
+    return out;
+}
+
+/**
+ * Rotate a 3D vector around the x-axis
+ * @param {vec3} out The receiving vec3
+ * @param {vec3} a The vec3 point to rotate
+ * @param {vec3} b The origin of the rotation
+ * @param {Number} c The angle of rotation
+ * @returns {vec3} out
+ */
+export function rotateX(out, a, b, c){
+  let p = [], r=[];
+  //Translate point to the origin
+  p[0] = a[0] - b[0];
+  p[1] = a[1] - b[1];
+  p[2] = a[2] - b[2];
+
+  //perform rotation
+  r[0] = p[0];
+  r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);
+  r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);
+
+  //translate to correct position
+  out[0] = r[0] + b[0];
+  out[1] = r[1] + b[1];
+  out[2] = r[2] + b[2];
+
+  return out;
+}
+
+/**
+ * Rotate a 3D vector around the y-axis
+ * @param {vec3} out The receiving vec3
+ * @param {vec3} a The vec3 point to rotate
+ * @param {vec3} b The origin of the rotation
+ * @param {Number} c The angle of rotation
+ * @returns {vec3} out
+ */
+export function rotateY(out, a, b, c){
+  let p = [], r=[];
+  //Translate point to the origin
+  p[0] = a[0] - b[0];
+  p[1] = a[1] - b[1];
+  p[2] = a[2] - b[2];
+
+  //perform rotation
+  r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);
+  r[1] = p[1];
+  r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);
+
+  //translate to correct position
+  out[0] = r[0] + b[0];
+  out[1] = r[1] + b[1];
+  out[2] = r[2] + b[2];
+
+  return out;
+}
+
+/**
+ * Rotate a 3D vector around the z-axis
+ * @param {vec3} out The receiving vec3
+ * @param {vec3} a The vec3 point to rotate
+ * @param {vec3} b The origin of the rotation
+ * @param {Number} c The angle of rotation
+ * @returns {vec3} out
+ */
+export function rotateZ(out, a, b, c){
+  let p = [], r=[];
+  //Translate point to the origin
+  p[0] = a[0] - b[0];
+  p[1] = a[1] - b[1];
+  p[2] = a[2] - b[2];
+
+  //perform rotation
+  r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);
+  r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);
+  r[2] = p[2];
+
+  //translate to correct position
+  out[0] = r[0] + b[0];
+  out[1] = r[1] + b[1];
+  out[2] = r[2] + b[2];
+
+  return out;
+}
+
+/**
+ * Get the angle between two 3D vectors
+ * @param {vec3} a The first operand
+ * @param {vec3} b The second operand
+ * @returns {Number} The angle in radians
+ */
+export function angle(a, b) {
+  let tempA = fromValues(a[0], a[1], a[2]);
+  let tempB = fromValues(b[0], b[1], b[2]);
+
+  normalize(tempA, tempA);
+  normalize(tempB, tempB);
+
+  let cosine = dot(tempA, tempB);
+
+  if(cosine > 1.0) {
+    return 0;
+  }
+  else if(cosine < -1.0) {
+    return Math.PI;
+  } else {
+    return Math.acos(cosine);
+  }
+}
+
+/**
+ * Returns a string representation of a vector
+ *
+ * @param {vec3} a vector to represent as a string
+ * @returns {String} string representation of the vector
+ */
+export function str(a) {
+  return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
+}
+
+/**
+ * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {vec3} a The first vector.
+ * @param {vec3} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2];
+}
+
+/**
+ * Returns whether or not the vectors have approximately the same elements in the same position.
+ *
+ * @param {vec3} a The first vector.
+ * @param {vec3} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2];
+  let b0 = b[0], b1 = b[1], b2 = b[2];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)));
+}
+
+/**
+ * Alias for {@link vec3.subtract}
+ * @function
+ */
+export const sub = subtract;
+
+/**
+ * Alias for {@link vec3.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link vec3.divide}
+ * @function
+ */
+export const div = divide;
+
+/**
+ * Alias for {@link vec3.distance}
+ * @function
+ */
+export const dist = distance;
+
+/**
+ * Alias for {@link vec3.squaredDistance}
+ * @function
+ */
+export const sqrDist = squaredDistance;
+
+/**
+ * Alias for {@link vec3.length}
+ * @function
+ */
+export const len = length;
+
+/**
+ * Alias for {@link vec3.squaredLength}
+ * @function
+ */
+export const sqrLen = squaredLength;
+
+/**
+ * Perform some operation over an array of vec3s.
+ *
+ * @param {Array} a the array of vectors to iterate over
+ * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
+ * @param {Number} offset Number of elements to skip at the beginning of the array
+ * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
+ * @param {Function} fn Function to call for each vector in the array
+ * @param {Object} [arg] additional argument to pass to fn
+ * @returns {Array} a
+ * @function
+ */
+export const forEach = (function() {
+  let vec = create();
+
+  return function(a, stride, offset, count, fn, arg) {
+    let i, l;
+    if(!stride) {
+      stride = 3;
+    }
+
+    if(!offset) {
+      offset = 0;
+    }
+
+    if(count) {
+      l = Math.min((count * stride) + offset, a.length);
+    } else {
+      l = a.length;
+    }
+
+    for(i = offset; i < l; i += stride) {
+      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];
+      fn(vec, vec, arg);
+      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];
+    }
+
+    return a;
+  };
+})();
diff --git a/js/third-party/gl-matrix/src/gl-matrix/vec4.js b/js/third-party/gl-matrix/src/gl-matrix/vec4.js
new file mode 100644
index 000000000..147b60e72
--- /dev/null
+++ b/js/third-party/gl-matrix/src/gl-matrix/vec4.js
@@ -0,0 +1,602 @@
+import * as glMatrix from "./common.js";
+
+/**
+ * 4 Dimensional Vector
+ * @module vec4
+ */
+
+/**
+ * Creates a new, empty vec4
+ *
+ * @returns {vec4} a new 4D vector
+ */
+export function create() {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  if(glMatrix.ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+  }
+  return out;
+}
+
+/**
+ * Creates a new vec4 initialized with values from an existing vector
+ *
+ * @param {vec4} a vector to clone
+ * @returns {vec4} a new 4D vector
+ */
+export function clone(a) {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Creates a new vec4 initialized with the given values
+ *
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @param {Number} w W component
+ * @returns {vec4} a new 4D vector
+ */
+export function fromValues(x, y, z, w) {
+  let out = new glMatrix.ARRAY_TYPE(4);
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  out[3] = w;
+  return out;
+}
+
+/**
+ * Copy the values from one vec4 to another
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the source vector
+ * @returns {vec4} out
+ */
+export function copy(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Set the components of a vec4 to the given values
+ *
+ * @param {vec4} out the receiving vector
+ * @param {Number} x X component
+ * @param {Number} y Y component
+ * @param {Number} z Z component
+ * @param {Number} w W component
+ * @returns {vec4} out
+ */
+export function set(out, x, y, z, w) {
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  out[3] = w;
+  return out;
+}
+
+/**
+ * Adds two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function add(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  out[3] = a[3] + b[3];
+  return out;
+}
+
+/**
+ * Subtracts vector b from vector a
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function subtract(out, a, b) {
+  out[0] = a[0] - b[0];
+  out[1] = a[1] - b[1];
+  out[2] = a[2] - b[2];
+  out[3] = a[3] - b[3];
+  return out;
+}
+
+/**
+ * Multiplies two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function multiply(out, a, b) {
+  out[0] = a[0] * b[0];
+  out[1] = a[1] * b[1];
+  out[2] = a[2] * b[2];
+  out[3] = a[3] * b[3];
+  return out;
+}
+
+/**
+ * Divides two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function divide(out, a, b) {
+  out[0] = a[0] / b[0];
+  out[1] = a[1] / b[1];
+  out[2] = a[2] / b[2];
+  out[3] = a[3] / b[3];
+  return out;
+}
+
+/**
+ * Math.ceil the components of a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to ceil
+ * @returns {vec4} out
+ */
+export function ceil(out, a) {
+  out[0] = Math.ceil(a[0]);
+  out[1] = Math.ceil(a[1]);
+  out[2] = Math.ceil(a[2]);
+  out[3] = Math.ceil(a[3]);
+  return out;
+}
+
+/**
+ * Math.floor the components of a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to floor
+ * @returns {vec4} out
+ */
+export function floor(out, a) {
+  out[0] = Math.floor(a[0]);
+  out[1] = Math.floor(a[1]);
+  out[2] = Math.floor(a[2]);
+  out[3] = Math.floor(a[3]);
+  return out;
+}
+
+/**
+ * Returns the minimum of two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function min(out, a, b) {
+  out[0] = Math.min(a[0], b[0]);
+  out[1] = Math.min(a[1], b[1]);
+  out[2] = Math.min(a[2], b[2]);
+  out[3] = Math.min(a[3], b[3]);
+  return out;
+}
+
+/**
+ * Returns the maximum of two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {vec4} out
+ */
+export function max(out, a, b) {
+  out[0] = Math.max(a[0], b[0]);
+  out[1] = Math.max(a[1], b[1]);
+  out[2] = Math.max(a[2], b[2]);
+  out[3] = Math.max(a[3], b[3]);
+  return out;
+}
+
+/**
+ * Math.round the components of a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to round
+ * @returns {vec4} out
+ */
+export function round(out, a) {
+  out[0] = Math.round(a[0]);
+  out[1] = Math.round(a[1]);
+  out[2] = Math.round(a[2]);
+  out[3] = Math.round(a[3]);
+  return out;
+}
+
+/**
+ * Scales a vec4 by a scalar number
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the vector to scale
+ * @param {Number} b amount to scale the vector by
+ * @returns {vec4} out
+ */
+export function scale(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  out[3] = a[3] * b;
+  return out;
+}
+
+/**
+ * Adds two vec4's after scaling the second operand by a scalar value
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @param {Number} scale the amount to scale b by before adding
+ * @returns {vec4} out
+ */
+export function scaleAndAdd(out, a, b, scale) {
+  out[0] = a[0] + (b[0] * scale);
+  out[1] = a[1] + (b[1] * scale);
+  out[2] = a[2] + (b[2] * scale);
+  out[3] = a[3] + (b[3] * scale);
+  return out;
+}
+
+/**
+ * Calculates the euclidian distance between two vec4's
+ *
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {Number} distance between a and b
+ */
+export function distance(a, b) {
+  let x = b[0] - a[0];
+  let y = b[1] - a[1];
+  let z = b[2] - a[2];
+  let w = b[3] - a[3];
+  return Math.sqrt(x*x + y*y + z*z + w*w);
+}
+
+/**
+ * Calculates the squared euclidian distance between two vec4's
+ *
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {Number} squared distance between a and b
+ */
+export function squaredDistance(a, b) {
+  let x = b[0] - a[0];
+  let y = b[1] - a[1];
+  let z = b[2] - a[2];
+  let w = b[3] - a[3];
+  return x*x + y*y + z*z + w*w;
+}
+
+/**
+ * Calculates the length of a vec4
+ *
+ * @param {vec4} a vector to calculate length of
+ * @returns {Number} length of a
+ */
+export function length(a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let w = a[3];
+  return Math.sqrt(x*x + y*y + z*z + w*w);
+}
+
+/**
+ * Calculates the squared length of a vec4
+ *
+ * @param {vec4} a vector to calculate squared length of
+ * @returns {Number} squared length of a
+ */
+export function squaredLength(a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let w = a[3];
+  return x*x + y*y + z*z + w*w;
+}
+
+/**
+ * Negates the components of a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to negate
+ * @returns {vec4} out
+ */
+export function negate(out, a) {
+  out[0] = -a[0];
+  out[1] = -a[1];
+  out[2] = -a[2];
+  out[3] = -a[3];
+  return out;
+}
+
+/**
+ * Returns the inverse of the components of a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to invert
+ * @returns {vec4} out
+ */
+export function inverse(out, a) {
+  out[0] = 1.0 / a[0];
+  out[1] = 1.0 / a[1];
+  out[2] = 1.0 / a[2];
+  out[3] = 1.0 / a[3];
+  return out;
+}
+
+/**
+ * Normalize a vec4
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a vector to normalize
+ * @returns {vec4} out
+ */
+export function normalize(out, a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let w = a[3];
+  let len = x*x + y*y + z*z + w*w;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    out[0] = x * len;
+    out[1] = y * len;
+    out[2] = z * len;
+    out[3] = w * len;
+  }
+  return out;
+}
+
+/**
+ * Calculates the dot product of two vec4's
+ *
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @returns {Number} dot product of a and b
+ */
+export function dot(a, b) {
+  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
+}
+
+/**
+ * Performs a linear interpolation between two vec4's
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the first operand
+ * @param {vec4} b the second operand
+ * @param {Number} t interpolation amount, in the range [0-1], between the two inputs
+ * @returns {vec4} out
+ */
+export function lerp(out, a, b, t) {
+  let ax = a[0];
+  let ay = a[1];
+  let az = a[2];
+  let aw = a[3];
+  out[0] = ax + t * (b[0] - ax);
+  out[1] = ay + t * (b[1] - ay);
+  out[2] = az + t * (b[2] - az);
+  out[3] = aw + t * (b[3] - aw);
+  return out;
+}
+
+/**
+ * Generates a random vector with the given scale
+ *
+ * @param {vec4} out the receiving vector
+ * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
+ * @returns {vec4} out
+ */
+export function random(out, scale) {
+  scale = scale || 1.0;
+
+  // Marsaglia, George. Choosing a Point from the Surface of a
+  // Sphere. Ann. Math. Statist. 43 (1972), no. 2, 645--646.
+  // http://projecteuclid.org/euclid.aoms/1177692644;
+  var v1, v2, v3, v4;
+  var s1, s2;
+  do {
+    v1 = glMatrix.RANDOM() * 2 - 1;
+    v2 = glMatrix.RANDOM() * 2 - 1;
+    s1 = v1 * v1 + v2 * v2;
+  } while (s1 >= 1);
+  do {
+    v3 = glMatrix.RANDOM() * 2 - 1;
+    v4 = glMatrix.RANDOM() * 2 - 1;
+    s2 = v3 * v3 + v4 * v4;
+  } while (s2 >= 1);
+
+  var d = Math.sqrt((1 - s1) / s2);
+  out[0] = scale * v1;
+  out[1] = scale * v2;
+  out[2] = scale * v3 * d;
+  out[3] = scale * v4 * d;
+  return out;
+}
+
+/**
+ * Transforms the vec4 with a mat4.
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the vector to transform
+ * @param {mat4} m matrix to transform with
+ * @returns {vec4} out
+ */
+export function transformMat4(out, a, m) {
+  let x = a[0], y = a[1], z = a[2], w = a[3];
+  out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;
+  out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;
+  out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;
+  out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;
+  return out;
+}
+
+/**
+ * Transforms the vec4 with a quat
+ *
+ * @param {vec4} out the receiving vector
+ * @param {vec4} a the vector to transform
+ * @param {quat} q quaternion to transform with
+ * @returns {vec4} out
+ */
+export function transformQuat(out, a, q) {
+  let x = a[0], y = a[1], z = a[2];
+  let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
+
+  // calculate quat * vec
+  let ix = qw * x + qy * z - qz * y;
+  let iy = qw * y + qz * x - qx * z;
+  let iz = qw * z + qx * y - qy * x;
+  let iw = -qx * x - qy * y - qz * z;
+
+  // calculate result * inverse quat
+  out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
+  out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
+  out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
+  out[3] = a[3];
+  return out;
+}
+
+/**
+ * Returns a string representation of a vector
+ *
+ * @param {vec4} a vector to represent as a string
+ * @returns {String} string representation of the vector
+ */
+export function str(a) {
+  return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
+}
+
+/**
+ * Returns whether or not the vectors have exactly the same elements in the same position (when compared with ===)
+ *
+ * @param {vec4} a The first vector.
+ * @param {vec4} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function exactEquals(a, b) {
+  return a[0] === b[0] && a[1] === b[1] && a[2] === b[2] && a[3] === b[3];
+}
+
+/**
+ * Returns whether or not the vectors have approximately the same elements in the same position.
+ *
+ * @param {vec4} a The first vector.
+ * @param {vec4} b The second vector.
+ * @returns {Boolean} True if the vectors are equal, false otherwise.
+ */
+export function equals(a, b) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
+  return (Math.abs(a0 - b0) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a0), Math.abs(b0)) &&
+          Math.abs(a1 - b1) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a1), Math.abs(b1)) &&
+          Math.abs(a2 - b2) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a2), Math.abs(b2)) &&
+          Math.abs(a3 - b3) <= glMatrix.EPSILON*Math.max(1.0, Math.abs(a3), Math.abs(b3)));
+}
+
+/**
+ * Alias for {@link vec4.subtract}
+ * @function
+ */
+export const sub = subtract;
+
+/**
+ * Alias for {@link vec4.multiply}
+ * @function
+ */
+export const mul = multiply;
+
+/**
+ * Alias for {@link vec4.divide}
+ * @function
+ */
+export const div = divide;
+
+/**
+ * Alias for {@link vec4.distance}
+ * @function
+ */
+export const dist = distance;
+
+/**
+ * Alias for {@link vec4.squaredDistance}
+ * @function
+ */
+export const sqrDist = squaredDistance;
+
+/**
+ * Alias for {@link vec4.length}
+ * @function
+ */
+export const len = length;
+
+/**
+ * Alias for {@link vec4.squaredLength}
+ * @function
+ */
+export const sqrLen = squaredLength;
+
+/**
+ * Perform some operation over an array of vec4s.
+ *
+ * @param {Array} a the array of vectors to iterate over
+ * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed
+ * @param {Number} offset Number of elements to skip at the beginning of the array
+ * @param {Number} count Number of vec4s to iterate over. If 0 iterates over entire array
+ * @param {Function} fn Function to call for each vector in the array
+ * @param {Object} [arg] additional argument to pass to fn
+ * @returns {Array} a
+ * @function
+ */
+export const forEach = (function() {
+  let vec = create();
+
+  return function(a, stride, offset, count, fn, arg) {
+    let i, l;
+    if(!stride) {
+      stride = 4;
+    }
+
+    if(!offset) {
+      offset = 0;
+    }
+
+    if(count) {
+      l = Math.min((count * stride) + offset, a.length);
+    } else {
+      l = a.length;
+    }
+
+    for(i = offset; i < l; i += stride) {
+      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];
+      fn(vec, vec, arg);
+      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];
+    }
+
+    return a;
+  };
+})();
diff --git a/js/third-party/webxr-polyfill/LICENSE b/js/third-party/webxr-polyfill/LICENSE
new file mode 100644
index 000000000..ef0602569
--- /dev/null
+++ b/js/third-party/webxr-polyfill/LICENSE
@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
+
+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2017 Google Inc
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/js/webxr-polyfill.js b/js/third-party/webxr-polyfill/build/webxr-polyfill.module.js
similarity index 51%
rename from js/webxr-polyfill.js
rename to js/third-party/webxr-polyfill/build/webxr-polyfill.module.js
index 047e689bd..5159dbda7 100644
--- a/js/webxr-polyfill.js
+++ b/js/third-party/webxr-polyfill/build/webxr-polyfill.module.js
@@ -97,239 +97,153 @@
  * THE SOFTWARE.
  */
 
-(function (global, factory) {
-	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
-	typeof define === 'function' && define.amd ? define(factory) :
-	(global.WebXRPolyfill = factory());
-}(this, (function () { 'use strict';
-
-var _global = typeof global !== 'undefined' ? global : typeof self !== 'undefined' ? self : typeof window !== 'undefined' ? window : {};
+const _global = typeof global !== 'undefined' ? global :
+                typeof self !== 'undefined' ? self :
+                typeof window !== 'undefined' ? window : {};
 
-var classCallCheck = function (instance, Constructor) {
-  if (!(instance instanceof Constructor)) {
-    throw new TypeError("Cannot call a class as a function");
+const PRIVATE = Symbol('@@webxr-polyfill/EventTarget');
+class EventTarget {
+  constructor() {
+    this[PRIVATE] = {
+      listeners: new Map(),
+    };
   }
-};
-
-var createClass = function () {
-  function defineProperties(target, props) {
-    for (var i = 0; i < props.length; i++) {
-      var descriptor = props[i];
-      descriptor.enumerable = descriptor.enumerable || false;
-      descriptor.configurable = true;
-      if ("value" in descriptor) descriptor.writable = true;
-      Object.defineProperty(target, descriptor.key, descriptor);
+  addEventListener(type, listener) {
+    if (typeof type !== 'string') { throw new Error('`type` must be a string'); }
+    if (typeof listener !== 'function') { throw new Error('`listener` must be a function'); }
+    const typedListeners = this[PRIVATE].listeners.get(type) || [];
+    typedListeners.push(listener);
+    this[PRIVATE].listeners.set(type, typedListeners);
+  }
+  removeEventListener(type, listener) {
+    if (typeof type !== 'string') { throw new Error('`type` must be a string'); }
+    if (typeof listener !== 'function') { throw new Error('`listener` must be a function'); }
+    const typedListeners = this[PRIVATE].listeners.get(type) || [];
+    for (let i = typedListeners.length; i >= 0; i--) {
+      if (typedListeners[i] === listener) {
+        typedListeners.pop();
+      }
     }
   }
-
-  return function (Constructor, protoProps, staticProps) {
-    if (protoProps) defineProperties(Constructor.prototype, protoProps);
-    if (staticProps) defineProperties(Constructor, staticProps);
-    return Constructor;
-  };
-}();
-
-
-
-
-
-
-
-
-
-var inherits = function (subClass, superClass) {
-  if (typeof superClass !== "function" && superClass !== null) {
-    throw new TypeError("Super expression must either be null or a function, not " + typeof superClass);
-  }
-
-  subClass.prototype = Object.create(superClass && superClass.prototype, {
-    constructor: {
-      value: subClass,
-      enumerable: false,
-      writable: true,
-      configurable: true
+  dispatchEvent(type, event) {
+    const typedListeners = this[PRIVATE].listeners.get(type) || [];
+    const queue = [];
+    for (let i = 0; i < typedListeners.length; i++) {
+      queue[i] = typedListeners[i];
+    }
+    for (let listener of queue) {
+      listener(event);
+    }
+    if (typeof this[`on${type}`] === 'function') {
+      this[`on${type}`](event);
     }
-  });
-  if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass;
-};
-
-
-
-
-
-
-
-
-
-
-
-var possibleConstructorReturn = function (self, call) {
-  if (!self) {
-    throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
   }
+}
 
-  return call && (typeof call === "object" || typeof call === "function") ? call : self;
-};
-
-var PRIVATE = Symbol('@@webxr-polyfill/EventTarget');
-var EventTarget = function () {
-  function EventTarget() {
-    classCallCheck(this, EventTarget);
-    this[PRIVATE] = {
-      listeners: new Map()
+const PRIVATE$1 = Symbol('@@webxr-polyfill/XR');
+const XRSessionModes = ['inline', 'immersive-vr', 'immersive-ar'];
+const POLYFILL_REQUEST_SESSION_ERROR =
+`Polyfill Error: Must call navigator.xr.supportsSession() with any XRSessionMode
+or navigator.xr.requestSession('inline') prior to requesting an immersive
+session. This is a limitation specific to the WebXR Polyfill and does not apply
+to native implementations of the API.`;
+class XR$1 extends EventTarget {
+  constructor(devicePromise) {
+    super();
+    this[PRIVATE$1] = {
+      device: null,
+      devicePromise,
+      immersiveSession: null,
+      inlineSessions: new Set(),
     };
+    devicePromise.then((device) => { this[PRIVATE$1].device = device; });
   }
-  createClass(EventTarget, [{
-    key: 'addEventListener',
-    value: function addEventListener(type, listener) {
-      if (typeof type !== 'string') {
-        throw new Error('`type` must be a string');
-      }
-      if (typeof listener !== 'function') {
-        throw new Error('`listener` must be a function');
-      }
-      var typedListeners = this[PRIVATE].listeners.get(type) || [];
-      typedListeners.push(listener);
-      this[PRIVATE].listeners.set(type, typedListeners);
+  async supportsSession(mode) {
+    if (!this[PRIVATE$1].device) {
+      await this[PRIVATE$1].devicePromise;
     }
-  }, {
-    key: 'removeEventListener',
-    value: function removeEventListener(type, listener) {
-      if (typeof type !== 'string') {
-        throw new Error('`type` must be a string');
-      }
-      if (typeof listener !== 'function') {
-        throw new Error('`listener` must be a function');
-      }
-      var typedListeners = this[PRIVATE].listeners.get(type) || [];
-      for (var i = typedListeners.length; i >= 0; i--) {
-        if (typedListeners[i] === listener) {
-          typedListeners.pop();
-        }
+    if (mode != 'inline') {
+      if (!this[PRIVATE$1].device.supportsSession(mode)) {
+        return Promise.reject(null);
       }
     }
-  }, {
-    key: 'dispatchEvent',
-    value: function dispatchEvent(type, event) {
-      var typedListeners = this[PRIVATE].listeners.get(type) || [];
-      var queue = [];
-      for (var i = 0; i < typedListeners.length; i++) {
-        queue[i] = typedListeners[i];
-      }
-      var _iteratorNormalCompletion = true;
-      var _didIteratorError = false;
-      var _iteratorError = undefined;
-      try {
-        for (var _iterator = queue[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-          var listener = _step.value;
-          listener(event);
-        }
-      } catch (err) {
-        _didIteratorError = true;
-        _iteratorError = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion && _iterator.return) {
-            _iterator.return();
-          }
-        } finally {
-          if (_didIteratorError) {
-            throw _iteratorError;
-          }
-        }
-      }
-      if (typeof this['on' + type] === 'function') {
-        this['on' + type](event);
+    return Promise.resolve(null);
+  }
+  async requestSession(mode) {
+    if (!this[PRIVATE$1].device) {
+      if (mode != 'inline') {
+        throw new Error(POLYFILL_REQUEST_SESSION_ERROR);
+      } else {
+        await this[PRIVATE$1].devicePromise;
       }
     }
-  }]);
-  return EventTarget;
-}();
-
-var PRIVATE$1 = Symbol('@@webxr-polyfill/XR');
-var XR = function (_EventTarget) {
-  inherits(XR, _EventTarget);
-  function XR(device) {
-    classCallCheck(this, XR);
-    var _this = possibleConstructorReturn(this, (XR.__proto__ || Object.getPrototypeOf(XR)).call(this));
-    _this[PRIVATE$1] = {
-      device: device
-    };
-    return _this;
-  }
-  createClass(XR, [{
-    key: 'requestDevice',
-    value: function requestDevice() {
-      return new Promise(function ($return, $error) {
-        var device;
-        return Promise.resolve(this[PRIVATE$1].device).then(function ($await_1) {
-          try {
-            device = $await_1;
-            if (device) {
-              return $return(device);
-            }
-            return $error(new Error('NotFoundError'));
-          } catch ($boundEx) {
-            return $error($boundEx);
-          }
-        }.bind(this), $error);
-      }.bind(this));
+    const sessionId = await this[PRIVATE$1].device.requestSession(mode);
+    const session = new XRSession(this[PRIVATE$1].device, mode, sessionId);
+    if (mode == 'inline') {
+      this[PRIVATE$1].inlineSessions.add(session);
+    } else {
+      this[PRIVATE$1].immersiveSession = session;
     }
-  }]);
-  return XR;
-}(EventTarget);
+    const onSessionEnd = () => {
+      if (mode == 'inline') {
+        this[PRIVATE$1].inlineSessions.delete(session);
+      } else {
+        this[PRIVATE$1].immersiveSession = null;
+      }
+      session.removeEventListener('end', onSessionEnd);
+    };
+    session.addEventListener('end', onSessionEnd);
+    return session;
+  }
+}
 
-var now = void 0;
+let now;
 if ('performance' in _global === false) {
-  var startTime = Date.now();
-  now = function now() {
-    return Date.now() - startTime;
-  };
+  let startTime = Date.now();
+  now = () => Date.now() - startTime;
 } else {
-  now = function now() {
-    return performance.now();
-  };
+  now = () => performance.now();
 }
 var now$1 = now;
 
-var PRIVATE$2 = Symbol('@@webxr-polyfill/XRPresentationContext');
-var XRPresentationContext = function () {
-  function XRPresentationContext(canvas, ctx, glAttribs) {
-    classCallCheck(this, XRPresentationContext);
-    this[PRIVATE$2] = { canvas: canvas, ctx: ctx, glAttribs: glAttribs };
-    Object.assign(this, ctx);
+const PRIVATE$2 = Symbol('@@webxr-polyfill/XRPose');
+class XRPose$1 {
+  constructor(transform, emulatedPosition) {
+    this[PRIVATE$2] = {
+      transform,
+      emulatedPosition,
+    };
   }
-  createClass(XRPresentationContext, [{
-    key: 'canvas',
-    get: function get$$1() {
-      return this[PRIVATE$2].canvas;
-    }
-  }]);
-  return XRPresentationContext;
-}();
+  get transform() { return this[PRIVATE$2].transform; }
+  get emulatedPosition() { return this[PRIVATE$2].emulatedPosition; }
+  _setTransform(transform) { this[PRIVATE$2].transform = transform; }
+}
 
-var ARRAY_TYPE = typeof Float32Array !== 'undefined' ? Float32Array : Array;
+const EPSILON = 0.000001;
+let ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;
 
 
-var degree = Math.PI / 180;
+const degree = Math.PI / 180;
 
 function create() {
-  var out = new ARRAY_TYPE(16);
+  let out = new ARRAY_TYPE(16);
+  if(ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[4] = 0;
+    out[6] = 0;
+    out[7] = 0;
+    out[8] = 0;
+    out[9] = 0;
+    out[11] = 0;
+    out[12] = 0;
+    out[13] = 0;
+    out[14] = 0;
+  }
   out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 0;
   out[5] = 1;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 0;
-  out[9] = 0;
   out[10] = 1;
-  out[11] = 0;
-  out[12] = 0;
-  out[13] = 0;
-  out[14] = 0;
   out[15] = 1;
   return out;
 }
@@ -376,35 +290,23 @@ function identity(out) {
 }
 
 function invert(out, a) {
-  var a00 = a[0],
-      a01 = a[1],
-      a02 = a[2],
-      a03 = a[3];
-  var a10 = a[4],
-      a11 = a[5],
-      a12 = a[6],
-      a13 = a[7];
-  var a20 = a[8],
-      a21 = a[9],
-      a22 = a[10],
-      a23 = a[11];
-  var a30 = a[12],
-      a31 = a[13],
-      a32 = a[14],
-      a33 = a[15];
-  var b00 = a00 * a11 - a01 * a10;
-  var b01 = a00 * a12 - a02 * a10;
-  var b02 = a00 * a13 - a03 * a10;
-  var b03 = a01 * a12 - a02 * a11;
-  var b04 = a01 * a13 - a03 * a11;
-  var b05 = a02 * a13 - a03 * a12;
-  var b06 = a20 * a31 - a21 * a30;
-  var b07 = a20 * a32 - a22 * a30;
-  var b08 = a20 * a33 - a23 * a30;
-  var b09 = a21 * a32 - a22 * a31;
-  var b10 = a21 * a33 - a23 * a31;
-  var b11 = a22 * a33 - a23 * a32;
-  var det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+  let b00 = a00 * a11 - a01 * a10;
+  let b01 = a00 * a12 - a02 * a10;
+  let b02 = a00 * a13 - a03 * a10;
+  let b03 = a01 * a12 - a02 * a11;
+  let b04 = a01 * a13 - a03 * a11;
+  let b05 = a02 * a13 - a03 * a12;
+  let b06 = a20 * a31 - a21 * a30;
+  let b07 = a20 * a32 - a22 * a30;
+  let b08 = a20 * a33 - a23 * a30;
+  let b09 = a21 * a32 - a22 * a31;
+  let b10 = a21 * a33 - a23 * a31;
+  let b11 = a22 * a33 - a23 * a32;
+  let det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
   if (!det) {
     return null;
   }
@@ -430,45 +332,30 @@ function invert(out, a) {
 
 
 function multiply(out, a, b) {
-  var a00 = a[0],
-      a01 = a[1],
-      a02 = a[2],
-      a03 = a[3];
-  var a10 = a[4],
-      a11 = a[5],
-      a12 = a[6],
-      a13 = a[7];
-  var a20 = a[8],
-      a21 = a[9],
-      a22 = a[10],
-      a23 = a[11];
-  var a30 = a[12],
-      a31 = a[13],
-      a32 = a[14],
-      a33 = a[15];
-  var b0 = b[0],
-      b1 = b[1],
-      b2 = b[2],
-      b3 = b[3];
-  out[0] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
-  out[1] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
-  out[2] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
-  out[3] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
-  b0 = b[4];b1 = b[5];b2 = b[6];b3 = b[7];
-  out[4] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
-  out[5] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
-  out[6] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
-  out[7] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
-  b0 = b[8];b1 = b[9];b2 = b[10];b3 = b[11];
-  out[8] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
-  out[9] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
-  out[10] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
-  out[11] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
-  b0 = b[12];b1 = b[13];b2 = b[14];b3 = b[15];
-  out[12] = b0 * a00 + b1 * a10 + b2 * a20 + b3 * a30;
-  out[13] = b0 * a01 + b1 * a11 + b2 * a21 + b3 * a31;
-  out[14] = b0 * a02 + b1 * a12 + b2 * a22 + b3 * a32;
-  out[15] = b0 * a03 + b1 * a13 + b2 * a23 + b3 * a33;
+  let a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3];
+  let a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7];
+  let a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11];
+  let a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];
+  let b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
+  out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+  b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];
+  out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+  b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];
+  out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
+  b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];
+  out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
+  out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
+  out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
+  out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
   return out;
 }
 
@@ -484,22 +371,19 @@ function multiply(out, a, b) {
 
 
 function fromRotationTranslation(out, q, v) {
-  var x = q[0],
-      y = q[1],
-      z = q[2],
-      w = q[3];
-  var x2 = x + x;
-  var y2 = y + y;
-  var z2 = z + z;
-  var xx = x * x2;
-  var xy = x * y2;
-  var xz = x * z2;
-  var yy = y * y2;
-  var yz = y * z2;
-  var zz = z * z2;
-  var wx = w * x2;
-  var wy = w * y2;
-  var wz = w * z2;
+  let x = q[0], y = q[1], z = q[2], w = q[3];
+  let x2 = x + x;
+  let y2 = y + y;
+  let z2 = z + z;
+  let xx = x * x2;
+  let xy = x * y2;
+  let xz = x * z2;
+  let yy = y * y2;
+  let yz = y * z2;
+  let zz = z * z2;
+  let wx = w * x2;
+  let wy = w * y2;
+  let wz = w * z2;
   out[0] = 1 - (yy + zz);
   out[1] = xy + wz;
   out[2] = xz - wy;
@@ -527,15 +411,15 @@ function getTranslation(out, mat) {
 }
 
 function getRotation(out, mat) {
-  var trace = mat[0] + mat[5] + mat[10];
-  var S = 0;
+  let trace = mat[0] + mat[5] + mat[10];
+  let S = 0;
   if (trace > 0) {
     S = Math.sqrt(trace + 1.0) * 2;
     out[3] = 0.25 * S;
     out[0] = (mat[6] - mat[9]) / S;
     out[1] = (mat[8] - mat[2]) / S;
     out[2] = (mat[1] - mat[4]) / S;
-  } else if (mat[0] > mat[5] && mat[0] > mat[10]) {
+  } else if ((mat[0] > mat[5]) && (mat[0] > mat[10])) {
     S = Math.sqrt(1.0 + mat[0] - mat[5] - mat[10]) * 2;
     out[3] = (mat[6] - mat[9]) / S;
     out[0] = 0.25 * S;
@@ -561,8 +445,7 @@ function getRotation(out, mat) {
 
 
 function perspective(out, fovy, aspect, near, far) {
-  var f = 1.0 / Math.tan(fovy / 2);
-  var nf = 1 / (near - far);
+  let f = 1.0 / Math.tan(fovy / 2), nf;
   out[0] = f / aspect;
   out[1] = 0;
   out[2] = 0;
@@ -573,998 +456,987 @@ function perspective(out, fovy, aspect, near, far) {
   out[7] = 0;
   out[8] = 0;
   out[9] = 0;
-  out[10] = (far + near) * nf;
   out[11] = -1;
   out[12] = 0;
   out[13] = 0;
-  out[14] = 2 * far * near * nf;
   out[15] = 0;
+  if (far != null && far !== Infinity) {
+    nf = 1 / (near - far);
+    out[10] = (far + near) * nf;
+    out[14] = (2 * far * near) * nf;
+  } else {
+    out[10] = -1;
+    out[14] = -2 * near;
+  }
   return out;
 }
 
-var PRIVATE$3 = Symbol('@@webxr-polyfill/XRDevicePose');
-var XRDevicePose = function () {
-  function XRDevicePose(polyfill) {
-    classCallCheck(this, XRDevicePose);
-    this[PRIVATE$3] = {
-      polyfill: polyfill,
-      leftViewMatrix: identity(new Float32Array(16)),
-      rightViewMatrix: identity(new Float32Array(16)),
-      poseModelMatrix: identity(new Float32Array(16))
-    };
+function create$1() {
+  let out = new ARRAY_TYPE(3);
+  if(ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
   }
-  createClass(XRDevicePose, [{
-    key: 'getViewMatrix',
-    value: function getViewMatrix(view) {
-      switch (view.eye) {
-        case 'left':
-          return this[PRIVATE$3].leftViewMatrix;
-        case 'right':
-          return this[PRIVATE$3].rightViewMatrix;
-      }
-      throw new Error('view is not a valid XREye');
-    }
-  }, {
-    key: 'updateFromFrameOfReference',
-    value: function updateFromFrameOfReference(frameOfRef) {
-      var pose = this[PRIVATE$3].polyfill.getBasePoseMatrix();
-      var leftViewMatrix = this[PRIVATE$3].polyfill.getBaseViewMatrix('left');
-      var rightViewMatrix = this[PRIVATE$3].polyfill.getBaseViewMatrix('right');
-      if (pose) {
-        frameOfRef.transformBasePoseMatrix(this[PRIVATE$3].poseModelMatrix, pose);
-      }
-      if (leftViewMatrix && rightViewMatrix) {
-        frameOfRef.transformBaseViewMatrix(this[PRIVATE$3].leftViewMatrix, leftViewMatrix, this[PRIVATE$3].poseModelMatrix);
-        frameOfRef.transformBaseViewMatrix(this[PRIVATE$3].rightViewMatrix, rightViewMatrix, this[PRIVATE$3].poseModelMatrix);
-      }
-    }
-  }, {
-    key: 'poseModelMatrix',
-    get: function get$$1() {
-      return this[PRIVATE$3].poseModelMatrix;
-    }
-  }]);
-  return XRDevicePose;
-}();
+  return out;
+}
+function clone$1(a) {
+  var out = new ARRAY_TYPE(3);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  return out;
+}
+function length(a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  return Math.sqrt(x*x + y*y + z*z);
+}
+function fromValues$1(x, y, z) {
+  let out = new ARRAY_TYPE(3);
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  return out;
+}
+function copy$1(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  return out;
+}
 
-var PRIVATE$4 = Symbol('@@webxr-polyfill/XRViewport');
-var XRViewport = function () {
-  function XRViewport(target) {
-    classCallCheck(this, XRViewport);
-    this[PRIVATE$4] = { target: target };
-  }
-  createClass(XRViewport, [{
-    key: 'x',
-    get: function get$$1() {
-      return this[PRIVATE$4].target.x;
-    }
-  }, {
-    key: 'y',
-    get: function get$$1() {
-      return this[PRIVATE$4].target.y;
-    }
-  }, {
-    key: 'width',
-    get: function get$$1() {
-      return this[PRIVATE$4].target.width;
-    }
-  }, {
-    key: 'height',
-    get: function get$$1() {
-      return this[PRIVATE$4].target.height;
-    }
-  }]);
-  return XRViewport;
-}();
+function add$1(out, a, b) {
+  out[0] = a[0] + b[0];
+  out[1] = a[1] + b[1];
+  out[2] = a[2] + b[2];
+  return out;
+}
 
-var XREyes = ['left', 'right'];
-var PRIVATE$5 = Symbol('@@webxr-polyfill/XRView');
-var XRView = function () {
-  function XRView(polyfill, eye, sessionId) {
-    classCallCheck(this, XRView);
-    if (!XREyes.includes(eye)) {
-      throw new Error('XREye must be one of: ' + XREyes);
-    }
-    var temp = Object.create(null);
-    var viewport = new XRViewport(temp);
-    this[PRIVATE$5] = {
-      polyfill: polyfill,
-      eye: eye,
-      viewport: viewport,
-      temp: temp,
-      sessionId: sessionId
-    };
+
+
+
+
+
+
+
+function scale$1(out, a, b) {
+  out[0] = a[0] * b;
+  out[1] = a[1] * b;
+  out[2] = a[2] * b;
+  return out;
+}
+
+
+
+
+
+
+function normalize(out, a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let len = x*x + y*y + z*z;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    out[0] = a[0] * len;
+    out[1] = a[1] * len;
+    out[2] = a[2] * len;
   }
-  createClass(XRView, [{
-    key: '_getViewport',
-    value: function _getViewport(layer) {
-      var viewport = this[PRIVATE$5].viewport;
-      if (this[PRIVATE$5].polyfill.getViewport(this[PRIVATE$5].sessionId, this.eye, layer, this[PRIVATE$5].temp)) {
-        return this[PRIVATE$5].viewport;
-      }
-      return undefined;
-    }
-  }, {
-    key: 'eye',
-    get: function get$$1() {
-      return this[PRIVATE$5].eye;
-    }
-  }, {
-    key: 'projectionMatrix',
-    get: function get$$1() {
-      return this[PRIVATE$5].polyfill.getProjectionMatrix(this.eye);
-    }
-  }]);
-  return XRView;
-}();
+  return out;
+}
+function dot(a, b) {
+  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+}
+function cross(out, a, b) {
+  let ax = a[0], ay = a[1], az = a[2];
+  let bx = b[0], by = b[1], bz = b[2];
+  out[0] = ay * bz - az * by;
+  out[1] = az * bx - ax * bz;
+  out[2] = ax * by - ay * bx;
+  return out;
+}
 
-var PRIVATE$6 = Symbol('@@webxr-polyfill/XRFrame');
-var XRFrame = function () {
-  function XRFrame(polyfill, session, sessionId) {
-    classCallCheck(this, XRFrame);
-    var devicePose = new XRDevicePose(polyfill);
-    var views = [new XRView(polyfill, 'left', sessionId)];
-    if (session.immersive) {
-      views.push(new XRView(polyfill, 'right', sessionId));
-    }
-    this[PRIVATE$6] = {
-      polyfill: polyfill,
-      devicePose: devicePose,
-      views: views,
-      session: session
-    };
+
+
+
+
+
+function transformQuat(out, a, q) {
+    let qx = q[0], qy = q[1], qz = q[2], qw = q[3];
+    let x = a[0], y = a[1], z = a[2];
+    let uvx = qy * z - qz * y,
+        uvy = qz * x - qx * z,
+        uvz = qx * y - qy * x;
+    let uuvx = qy * uvz - qz * uvy,
+        uuvy = qz * uvx - qx * uvz,
+        uuvz = qx * uvy - qy * uvx;
+    let w2 = qw * 2;
+    uvx *= w2;
+    uvy *= w2;
+    uvz *= w2;
+    uuvx *= 2;
+    uuvy *= 2;
+    uuvz *= 2;
+    out[0] = x + uvx + uuvx;
+    out[1] = y + uvy + uuvy;
+    out[2] = z + uvz + uuvz;
+    return out;
+}
+
+
+
+function angle(a, b) {
+  let tempA = fromValues$1(a[0], a[1], a[2]);
+  let tempB = fromValues$1(b[0], b[1], b[2]);
+  normalize(tempA, tempA);
+  normalize(tempB, tempB);
+  let cosine = dot(tempA, tempB);
+  if(cosine > 1.0) {
+    return 0;
+  }
+  else if(cosine < -1.0) {
+    return Math.PI;
+  } else {
+    return Math.acos(cosine);
   }
-  createClass(XRFrame, [{
-    key: 'getDevicePose',
-    value: function getDevicePose(coordinateSystem) {
-      this[PRIVATE$6].devicePose.updateFromFrameOfReference(coordinateSystem);
-      return this[PRIVATE$6].devicePose;
+}
+
+
+
+
+
+
+
+
+const len = length;
+
+const forEach = (function() {
+  let vec = create$1();
+  return function(a, stride, offset, count, fn, arg) {
+    let i, l;
+    if(!stride) {
+      stride = 3;
     }
-  }, {
-    key: 'getInputPose',
-    value: function getInputPose(inputSource, coordinateSystem) {
-      return this[PRIVATE$6].polyfill.getInputPose(inputSource, coordinateSystem);
+    if(!offset) {
+      offset = 0;
     }
-  }, {
-    key: 'session',
-    get: function get$$1() {
-      return this[PRIVATE$6].session;
+    if(count) {
+      l = Math.min((count * stride) + offset, a.length);
+    } else {
+      l = a.length;
     }
-  }, {
-    key: 'views',
-    get: function get$$1() {
-      return this[PRIVATE$6].views;
+    for(i = offset; i < l; i += stride) {
+      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];
+      fn(vec, vec, arg);
+      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];
     }
-  }]);
-  return XRFrame;
-}();
+    return a;
+  };
+})();
 
-var PRIVATE$7 = Symbol('@@webxr-polyfill/XRStageBoundsPoint');
-var XRStageBoundsPoint = function () {
-  function XRStageBoundsPoint(x, z) {
-    classCallCheck(this, XRStageBoundsPoint);
-    this[PRIVATE$7] = { x: x, z: z };
+function create$2() {
+  let out = new ARRAY_TYPE(9);
+  if(ARRAY_TYPE != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[5] = 0;
+    out[6] = 0;
+    out[7] = 0;
   }
-  createClass(XRStageBoundsPoint, [{
-    key: 'x',
-    get: function get$$1() {
-      return this[PRIVATE$7].x;
-    }
-  }, {
-    key: 'z',
-    get: function get$$1() {
-      return this[PRIVATE$7].z;
-    }
-  }]);
-  return XRStageBoundsPoint;
-}();
+  out[0] = 1;
+  out[4] = 1;
+  out[8] = 1;
+  return out;
+}
 
-var PRIVATE$8 = Symbol('@@webxr-polyfill/XRStageBounds');
-var XRStageBounds = function () {
-  function XRStageBounds(boundsData) {
-    classCallCheck(this, XRStageBounds);
-    var geometry = [];
-    for (var i = 0; i < boundsData.length; i += 2) {
-      geometry.push(new XRStageBoundsPoint(boundsData[i], boundsData[i + 1]));
-    }
-    this[PRIVATE$8] = { geometry: geometry };
+function create$3() {
+  let out = new ARRAY_TYPE(4);
+  if(ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
   }
-  createClass(XRStageBounds, [{
-    key: 'geometry',
-    get: function get$$1() {
-      return this[PRIVATE$8].geometry;
-    }
-  }]);
-  return XRStageBounds;
-}();
+  return out;
+}
+function clone$3(a) {
+  let out = new ARRAY_TYPE(4);
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+function fromValues$3(x, y, z, w) {
+  let out = new ARRAY_TYPE(4);
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  out[3] = w;
+  return out;
+}
+function copy$3(out, a) {
+  out[0] = a[0];
+  out[1] = a[1];
+  out[2] = a[2];
+  out[3] = a[3];
+  return out;
+}
+
+
+
+
+
+
+
+
+
+
+
 
-var XRCoordinateSystem = function () {
-  function XRCoordinateSystem() {
-    classCallCheck(this, XRCoordinateSystem);
+
+
+
+
+
+
+function normalize$1(out, a) {
+  let x = a[0];
+  let y = a[1];
+  let z = a[2];
+  let w = a[3];
+  let len = x*x + y*y + z*z + w*w;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    out[0] = x * len;
+    out[1] = y * len;
+    out[2] = z * len;
+    out[3] = w * len;
   }
-  createClass(XRCoordinateSystem, [{
-    key: 'getTransformTo',
-    value: function getTransformTo(other) {
-      throw new Error('Not yet supported');
-    }
-  }]);
-  return XRCoordinateSystem;
-}();
+  return out;
+}
 
-var DEFAULT_EMULATION_HEIGHT = 1.6;
-var PRIVATE$9 = Symbol('@@webxr-polyfill/XRFrameOfReference');
-var XRFrameOfReferenceTypes = ['head-model', 'eye-level', 'stage'];
-var XRFrameOfReferenceOptions = Object.freeze({
-  disableStageEmulation: false,
-  stageEmulationHeight: 0
-});
-var XRFrameOfReference = function (_XRCoordinateSystem) {
-  inherits(XRFrameOfReference, _XRCoordinateSystem);
-  function XRFrameOfReference(polyfill, type, options, transform, bounds) {
-    classCallCheck(this, XRFrameOfReference);
-    options = Object.assign({}, XRFrameOfReferenceOptions, options);
-    if (!XRFrameOfReferenceTypes.includes(type)) {
-      throw new Error('XRFrameOfReferenceType must be one of ' + XRFrameOfReferenceTypes);
-    }
-    var _this = possibleConstructorReturn(this, (XRFrameOfReference.__proto__ || Object.getPrototypeOf(XRFrameOfReference)).call(this));
-    if (type === 'stage' && options.disableStageEmulation && !transform) {
-      throw new Error('XRFrameOfReference cannot use \'stage\' type, if disabling emulation and platform does not provide');
-    }
-    var _options = options,
-        disableStageEmulation = _options.disableStageEmulation,
-        stageEmulationHeight = _options.stageEmulationHeight;
-    var emulatedHeight = 0;
-    if (type === 'stage' && !transform) {
-      emulatedHeight = stageEmulationHeight !== 0 ? stageEmulationHeight : DEFAULT_EMULATION_HEIGHT;
-    }
-    if (type === 'stage' && !transform) {
-      transform = identity(new Float32Array(16));
-      transform[13] = emulatedHeight;
-    }
-    _this[PRIVATE$9] = {
-      disableStageEmulation: disableStageEmulation,
-      stageEmulationHeight: stageEmulationHeight,
-      emulatedHeight: emulatedHeight,
-      type: type,
-      transform: transform,
-      polyfill: polyfill,
-      bounds: bounds
-    };
-    _this.onboundschange = undefined;
-    return _this;
-  }
-  createClass(XRFrameOfReference, [{
-    key: 'transformBasePoseMatrix',
-    value: function transformBasePoseMatrix(out, pose) {
-      if (this[PRIVATE$9].transform) {
-        multiply(out, this[PRIVATE$9].transform, pose);
-        return;
-      }
-      switch (this.type) {
-        case 'head-model':
-          if (out !== pose) {
-            copy(out, pose);
-          }
-          out[12] = out[13] = out[14] = 0;
-          return;
-        case 'eye-level':
-          if (out !== pose) {
-            copy(out, pose);
-          }
-          return;
-      }
-    }
-  }, {
-    key: 'transformBaseViewMatrix',
-    value: function transformBaseViewMatrix(out, view) {
-      var frameOfRef = this[PRIVATE$9].transform;
-      if (frameOfRef) {
-        invert(out, frameOfRef);
-        multiply(out, view, out);
-      }
-      else if (this.type === 'head-model') {
-          invert(out, view);
-          out[12] = 0;
-          out[13] = 0;
-          out[14] = 0;
-          invert(out, out);
-          return out;
-        }
-        else {
-            copy(out, view);
-          }
-      return out;
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+const forEach$1 = (function() {
+  let vec = create$3();
+  return function(a, stride, offset, count, fn, arg) {
+    let i, l;
+    if(!stride) {
+      stride = 4;
     }
-  }, {
-    key: 'bounds',
-    get: function get$$1() {
-      return this[PRIVATE$9].bounds;
+    if(!offset) {
+      offset = 0;
     }
-  }, {
-    key: 'emulatedHeight',
-    get: function get$$1() {
-      return this[PRIVATE$9].emulatedHeight;
+    if(count) {
+      l = Math.min((count * stride) + offset, a.length);
+    } else {
+      l = a.length;
     }
-  }, {
-    key: 'type',
-    get: function get$$1() {
-      return this[PRIVATE$9].type;
+    for(i = offset; i < l; i += stride) {
+      vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];
+      fn(vec, vec, arg);
+      a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];
     }
-  }]);
-  return XRFrameOfReference;
-}(XRCoordinateSystem);
+    return a;
+  };
+})();
 
-var PRIVATE$10 = Symbol('@@webxr-polyfill/XRSession');
-var XRSessionCreationOptions = Object.freeze({
-  immersive: false,
-  outputContext: undefined
-});
-var validateSessionOptions = function validateSessionOptions(options) {
-  var immersive = options.immersive,
-      outputContext = options.outputContext;
-  if (!immersive && !outputContext) {
-    return false;
+function create$4() {
+  let out = new ARRAY_TYPE(4);
+  if(ARRAY_TYPE != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
   }
-  if (outputContext !== undefined && !(outputContext instanceof XRPresentationContext)) {
-    return false;
+  out[3] = 1;
+  return out;
+}
+
+function setAxisAngle(out, axis, rad) {
+  rad = rad * 0.5;
+  let s = Math.sin(rad);
+  out[0] = s * axis[0];
+  out[1] = s * axis[1];
+  out[2] = s * axis[2];
+  out[3] = Math.cos(rad);
+  return out;
+}
+
+function multiply$4(out, a, b) {
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
+  out[0] = ax * bw + aw * bx + ay * bz - az * by;
+  out[1] = ay * bw + aw * by + az * bx - ax * bz;
+  out[2] = az * bw + aw * bz + ax * by - ay * bx;
+  out[3] = aw * bw - ax * bx - ay * by - az * bz;
+  return out;
+}
+
+
+
+
+function slerp(out, a, b, t) {
+  let ax = a[0], ay = a[1], az = a[2], aw = a[3];
+  let bx = b[0], by = b[1], bz = b[2], bw = b[3];
+  let omega, cosom, sinom, scale0, scale1;
+  cosom = ax * bx + ay * by + az * bz + aw * bw;
+  if ( cosom < 0.0 ) {
+    cosom = -cosom;
+    bx = - bx;
+    by = - by;
+    bz = - bz;
+    bw = - bw;
+  }
+  if ( (1.0 - cosom) > EPSILON ) {
+    omega  = Math.acos(cosom);
+    sinom  = Math.sin(omega);
+    scale0 = Math.sin((1.0 - t) * omega) / sinom;
+    scale1 = Math.sin(t * omega) / sinom;
+  } else {
+    scale0 = 1.0 - t;
+    scale1 = t;
   }
-  return true;
-};
-var XRSession = function (_EventTarget) {
-  inherits(XRSession, _EventTarget);
-  function XRSession(polyfill, device, sessionOptions, id) {
-    classCallCheck(this, XRSession);
-    sessionOptions = Object.assign({}, XRSessionCreationOptions, sessionOptions);
-    var _this = possibleConstructorReturn(this, (XRSession.__proto__ || Object.getPrototypeOf(XRSession)).call(this));
-    var _sessionOptions = sessionOptions,
-        immersive = _sessionOptions.immersive,
-        outputContext = _sessionOptions.outputContext;
-    _this[PRIVATE$10] = {
-      polyfill: polyfill,
-      device: device,
-      immersive: immersive,
-      outputContext: outputContext,
-      ended: false,
-      suspended: false,
-      suspendedCallback: null,
-      id: id
-    };
-    var frame = new XRFrame(polyfill, _this, _this[PRIVATE$10].id);
-    _this[PRIVATE$10].frame = frame;
-    _this[PRIVATE$10].onPresentationEnd = function (sessionId) {
-      if (sessionId !== _this[PRIVATE$10].id) {
-        _this[PRIVATE$10].suspended = false;
-        _this.dispatchEvent('focus', { session: _this });
-        var suspendedCallback = _this[PRIVATE$10].suspendedCallback;
-        _this[PRIVATE$10].suspendedCallback = null;
-        if (suspendedCallback) {
-          _this.requestAnimationFrame(suspendedCallback);
-        }
-        return;
-      }
-      _this[PRIVATE$10].ended = true;
-      polyfill.removeEventListener('@webvr-polyfill/vr-present-end', _this[PRIVATE$10].onPresentationEnd);
-      polyfill.removeEventListener('@webvr-polyfill/vr-present-start', _this[PRIVATE$10].onPresentationStart);
-      polyfill.removeEventListener('@@webvr-polyfill/input-select-start', _this[PRIVATE$10].onSelectStart);
-      polyfill.removeEventListener('@@webvr-polyfill/input-select-end', _this[PRIVATE$10].onSelectEnd);
-      _this.dispatchEvent('end', { session: _this });
-    };
-    polyfill.addEventListener('@@webxr-polyfill/vr-present-end', _this[PRIVATE$10].onPresentationEnd);
-    _this[PRIVATE$10].onPresentationStart = function (sessionId) {
-      if (sessionId === _this[PRIVATE$10].id) {
-        return;
-      }
-      _this[PRIVATE$10].suspended = true;
-      _this.dispatchEvent('blur', { session: _this });
-    };
-    polyfill.addEventListener('@@webxr-polyfill/vr-present-start', _this[PRIVATE$10].onPresentationStart);
-    _this[PRIVATE$10].onSelectStart = function (evt) {
-      if (evt.sessionId !== _this[PRIVATE$10].id) {
-        return;
-      }
-      _this.dispatchEvent('selectstart', {
-        frame: _this[PRIVATE$10].frame,
-        inputSource: evt.inputSource
-      });
+  out[0] = scale0 * ax + scale1 * bx;
+  out[1] = scale0 * ay + scale1 * by;
+  out[2] = scale0 * az + scale1 * bz;
+  out[3] = scale0 * aw + scale1 * bw;
+  return out;
+}
+
+function invert$2(out, a) {
+  let a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
+  let dot$$1 = a0*a0 + a1*a1 + a2*a2 + a3*a3;
+  let invDot = dot$$1 ? 1.0/dot$$1 : 0;
+  out[0] = -a0*invDot;
+  out[1] = -a1*invDot;
+  out[2] = -a2*invDot;
+  out[3] = a3*invDot;
+  return out;
+}
+
+function fromMat3(out, m) {
+  let fTrace = m[0] + m[4] + m[8];
+  let fRoot;
+  if ( fTrace > 0.0 ) {
+    fRoot = Math.sqrt(fTrace + 1.0);
+    out[3] = 0.5 * fRoot;
+    fRoot = 0.5/fRoot;
+    out[0] = (m[5]-m[7])*fRoot;
+    out[1] = (m[6]-m[2])*fRoot;
+    out[2] = (m[1]-m[3])*fRoot;
+  } else {
+    let i = 0;
+    if ( m[4] > m[0] )
+      i = 1;
+    if ( m[8] > m[i*3+i] )
+      i = 2;
+    let j = (i+1)%3;
+    let k = (i+2)%3;
+    fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);
+    out[i] = 0.5 * fRoot;
+    fRoot = 0.5 / fRoot;
+    out[3] = (m[j*3+k] - m[k*3+j]) * fRoot;
+    out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;
+    out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;
+  }
+  return out;
+}
+function fromEuler(out, x, y, z) {
+    let halfToRad = 0.5 * Math.PI / 180.0;
+    x *= halfToRad;
+    y *= halfToRad;
+    z *= halfToRad;
+    let sx = Math.sin(x);
+    let cx = Math.cos(x);
+    let sy = Math.sin(y);
+    let cy = Math.cos(y);
+    let sz = Math.sin(z);
+    let cz = Math.cos(z);
+    out[0] = sx * cy * cz - cx * sy * sz;
+    out[1] = cx * sy * cz + sx * cy * sz;
+    out[2] = cx * cy * sz - sx * sy * cz;
+    out[3] = cx * cy * cz + sx * sy * sz;
+    return out;
+}
+
+const clone$4 = clone$3;
+const fromValues$4 = fromValues$3;
+const copy$4 = copy$3;
+
+
+
+
+
+
+
+
+
+
+const normalize$2 = normalize$1;
+
+
+const rotationTo = (function() {
+  let tmpvec3 = create$1();
+  let xUnitVec3 = fromValues$1(1,0,0);
+  let yUnitVec3 = fromValues$1(0,1,0);
+  return function(out, a, b) {
+    let dot$$1 = dot(a, b);
+    if (dot$$1 < -0.999999) {
+      cross(tmpvec3, xUnitVec3, a);
+      if (len(tmpvec3) < 0.000001)
+        cross(tmpvec3, yUnitVec3, a);
+      normalize(tmpvec3, tmpvec3);
+      setAxisAngle(out, tmpvec3, Math.PI);
+      return out;
+    } else if (dot$$1 > 0.999999) {
+      out[0] = 0;
+      out[1] = 0;
+      out[2] = 0;
+      out[3] = 1;
+      return out;
+    } else {
+      cross(tmpvec3, a, b);
+      out[0] = tmpvec3[0];
+      out[1] = tmpvec3[1];
+      out[2] = tmpvec3[2];
+      out[3] = 1 + dot$$1;
+      return normalize$2(out, out);
+    }
+  };
+})();
+const sqlerp = (function () {
+  let temp1 = create$4();
+  let temp2 = create$4();
+  return function (out, a, b, c, d, t) {
+    slerp(temp1, a, d, t);
+    slerp(temp2, b, c, t);
+    slerp(out, temp1, temp2, 2 * t * (1 - t));
+    return out;
+  };
+}());
+const setAxes = (function() {
+  let matr = create$2();
+  return function(out, view, right, up) {
+    matr[0] = right[0];
+    matr[3] = right[1];
+    matr[6] = right[2];
+    matr[1] = up[0];
+    matr[4] = up[1];
+    matr[7] = up[2];
+    matr[2] = -view[0];
+    matr[5] = -view[1];
+    matr[8] = -view[2];
+    return normalize$2(out, fromMat3(out, matr));
+  };
+})();
+
+const PRIVATE$3 = Symbol('@@webxr-polyfill/XRRigidTransform');
+class XRRigidTransform$1 {
+  constructor() {
+    this[PRIVATE$3] = {
+      matrix: null,
+      position: null,
+      orientation: null,
+      inverse: null,
     };
-    polyfill.addEventListener('@@webxr-polyfill/input-select-start', _this[PRIVATE$10].onSelectStart);
-    _this[PRIVATE$10].onSelectEnd = function (evt) {
-      if (evt.sessionId !== _this[PRIVATE$10].id) {
-        return;
+    if (arguments.length === 0) {
+      this[PRIVATE$3].matrix = identity(new Float32Array(16));
+    } else if (arguments.length === 1) {
+      if (arguments[0] instanceof Float32Array) {
+        this[PRIVATE$3].matrix = arguments[0];
+      } else {
+        this[PRIVATE$3].position = this._getPoint(arguments[0]);
+        this[PRIVATE$3].orientation = DOMPointReadOnly.fromPoint({
+            x: 0, y: 0, z: 0, w: 1
+        });
       }
-      _this.dispatchEvent('selectend', {
-        frame: _this[PRIVATE$10].frame,
-        inputSource: evt.inputSource
-      });
-      _this.dispatchEvent('select', {
-        frame: _this[PRIVATE$10].frame,
-        inputSource: evt.inputSource
-      });
+    } else if (arguments.length === 2) {
+      this[PRIVATE$3].position = this._getPoint(arguments[0]);
+      this[PRIVATE$3].orientation = this._getPoint(arguments[1]);
+    } else {
+      throw new Error("Too many arguments!");
+    }
+    if (this[PRIVATE$3].matrix) {
+        let position = create$1();
+        getTranslation(position, this[PRIVATE$3].matrix);
+        this[PRIVATE$3].position = DOMPointReadOnly.fromPoint({
+            x: position[0],
+            y: position[1],
+            z: position[2]
+        });
+        let orientation = create$4();
+        getRotation(orientation, this[PRIVATE$3].matrix);
+        this[PRIVATE$3].orientation = DOMPointReadOnly.fromPoint({
+          x: orientation[0],
+          y: orientation[1],
+          z: orientation[2],
+          w: orientation[3]
+        });
+    } else {
+        this[PRIVATE$3].matrix = identity(new Float32Array(16));
+        fromRotationTranslation(
+          this[PRIVATE$3].matrix,
+          fromValues$4(
+            this[PRIVATE$3].orientation.x,
+            this[PRIVATE$3].orientation.y,
+            this[PRIVATE$3].orientation.z,
+            this[PRIVATE$3].orientation.w),
+          fromValues$1(
+            this[PRIVATE$3].position.x,
+            this[PRIVATE$3].position.y,
+            this[PRIVATE$3].position.z)
+        );
+    }
+  }
+  _getPoint(arg) {
+    if (arg instanceof DOMPointReadOnly) {
+      return arg;
+    }
+    return DOMPointReadOnly.fromPoint(arg);
+  }
+  get matrix() { return this[PRIVATE$3].matrix; }
+  get position() { return this[PRIVATE$3].position; }
+  get orientation() { return this[PRIVATE$3].orientation; }
+  get inverse() {
+    if (this[PRIVATE$3].inverse === null) {
+      let invMatrix = identity(new Float32Array(16));
+      invert(invMatrix, this[PRIVATE$3].matrix);
+      this[PRIVATE$3].inverse = new XRRigidTransform$1(invMatrix);
+      this[PRIVATE$3].inverse[PRIVATE$3].inverse = this;
+    }
+    return this[PRIVATE$3].inverse;
+  }
+}
+
+const PRIVATE$4 = Symbol('@@webxr-polyfill/XRViewerPose');
+class XRViewerPose extends XRPose$1 {
+  constructor(device, views) {
+    super(new XRRigidTransform$1(), false);
+    this[PRIVATE$4] = {
+      device,
+      views,
+      leftViewMatrix: identity(new Float32Array(16)),
+      rightViewMatrix: identity(new Float32Array(16)),
+      poseModelMatrix: identity(new Float32Array(16)),
     };
-    polyfill.addEventListener('@@webxr-polyfill/input-select-end', _this[PRIVATE$10].onSelectEnd);
-    _this.onblur = undefined;
-    _this.onfocus = undefined;
-    _this.onresetpose = undefined;
-    _this.onend = undefined;
-    _this.onselect = undefined;
-    _this.onselectstart = undefined;
-    _this.onselectend = undefined;
-    return _this;
-  }
-  createClass(XRSession, [{
-    key: 'requestFrameOfReference',
-    value: function requestFrameOfReference(type) {
-      var $args = arguments;return new Promise(function ($return, $error) {
-        var options, transform, bounds;
-        options = $args.length > 1 && $args[1] !== undefined ? $args[1] : {};
-        if (this[PRIVATE$10].ended) {
-          return $return();
-        }
-        options = Object.assign({}, XRFrameOfReferenceOptions, options);
-        if (!XRFrameOfReferenceTypes.includes(type)) {
-          return $error(new TypeError('XRFrameOfReferenceType must be one of ' + XRFrameOfReferenceTypes));
-        }
-        transform = null;
-        bounds = null;
-        var $Try_1_Post = function () {
-          try {
-            if (type === 'stage' && transform) {
-              bounds = this[PRIVATE$10].polyfill.requestStageBounds();
-              if (bounds) {
-                bounds = new XRStageBounds(bounds);
-              }
-            }
-            return $return(new XRFrameOfReference(this[PRIVATE$10].polyfill, type, options, transform, bounds));
-          } catch ($boundEx) {
-            return $error($boundEx);
-          }
-        }.bind(this);var $Try_1_Catch = function (e) {
-          try {
-            if (type !== 'stage' || options.disableStageEmulation) {
-              throw e;
-            }
-            return $Try_1_Post();
-          } catch ($boundEx) {
-            return $error($boundEx);
-          }
-        }.bind(this);
-        try {
-          return Promise.resolve(this[PRIVATE$10].polyfill.requestFrameOfReferenceTransform(type, options)).then(function ($await_2) {
-            try {
-              transform = $await_2;
-              return $Try_1_Post();
-            } catch ($boundEx) {
-              return $Try_1_Catch($boundEx);
-            }
-          }.bind(this), $Try_1_Catch);
-        } catch (e) {
-          $Try_1_Catch(e);
-        }
-      }.bind(this));
-    }
-  }, {
-    key: 'requestAnimationFrame',
-    value: function requestAnimationFrame(callback) {
-      var _this2 = this;
-      if (this[PRIVATE$10].ended) {
-        return;
-      }
-      if (this[PRIVATE$10].suspended && this[PRIVATE$10].suspendedCallback) {
-        return;
-      }
-      if (this[PRIVATE$10].suspended && !this[PRIVATE$10].suspendedCallback) {
-        this[PRIVATE$10].suspendedCallback = callback;
-      }
-      return this[PRIVATE$10].polyfill.requestAnimationFrame(function () {
-        _this2[PRIVATE$10].polyfill.onFrameStart(_this2[PRIVATE$10].id);
-        callback(now$1(), _this2[PRIVATE$10].frame);
-        _this2[PRIVATE$10].polyfill.onFrameEnd(_this2[PRIVATE$10].id);
-      });
-    }
-  }, {
-    key: 'cancelAnimationFrame',
-    value: function cancelAnimationFrame(handle) {
-      if (this[PRIVATE$10].ended) {
-        return;
+  }
+  get poseModelMatrix() { return this[PRIVATE$4].poseModelMatrix; }
+  get views() {
+    return this[PRIVATE$4].views;
+  }
+  updateFromReferenceSpace(refSpace) {
+    const pose = this[PRIVATE$4].device.getBasePoseMatrix();
+    const leftViewMatrix = this[PRIVATE$4].device.getBaseViewMatrix('left');
+    const rightViewMatrix = this[PRIVATE$4].device.getBaseViewMatrix('right');
+    if (pose) {
+      refSpace.transformBasePoseMatrix(this[PRIVATE$4].poseModelMatrix, pose);
+      refSpace._adjustForOriginOffset(this[PRIVATE$4].poseModelMatrix);
+      super._setTransform(new XRRigidTransform$1(this[PRIVATE$4].poseModelMatrix));
+    }
+    if (leftViewMatrix && rightViewMatrix) {
+      refSpace.transformBaseViewMatrix(
+        this[PRIVATE$4].leftViewMatrix,
+        leftViewMatrix,
+        this[PRIVATE$4].poseModelMatrix);
+      refSpace.transformBaseViewMatrix(
+        this[PRIVATE$4].rightViewMatrix,
+        rightViewMatrix,
+        this[PRIVATE$4].poseModelMatrix);
+      multiply(
+        this[PRIVATE$4].leftViewMatrix,
+        this[PRIVATE$4].leftViewMatrix,
+        refSpace._originOffsetMatrix());
+      multiply(
+        this[PRIVATE$4].rightViewMatrix,
+        this[PRIVATE$4].rightViewMatrix,
+        refSpace._originOffsetMatrix());
+    }
+    for (let view of this[PRIVATE$4].views) {
+      if (view.eye == "left") {
+        view._updateViewMatrix(this[PRIVATE$4].leftViewMatrix);
+      } else if (view.eye == "right") {
+        view._updateViewMatrix(this[PRIVATE$4].rightViewMatrix);
       }
-      this[PRIVATE$10].polyfill.cancelAnimationFrame(handle);
-    }
-  }, {
-    key: 'getInputSources',
-    value: function getInputSources() {
-      return this[PRIVATE$10].polyfill.getInputSources();
     }
-  }, {
-    key: 'end',
-    value: function end() {
-      return new Promise(function ($return, $error) {
-        if (this[PRIVATE$10].ended) {
-          return $return();
-        }
-        if (!this.immersive) {
-          this[PRIVATE$10].ended = true;
-          this[PRIVATE$10].polyfill.removeEventListener('@@webvr-polyfill/vr-present-start', this[PRIVATE$10].onPresentationStart);
-          this[PRIVATE$10].polyfill.removeEventListener('@@webvr-polyfill/vr-present-end', this[PRIVATE$10].onPresentationEnd);
-          this[PRIVATE$10].polyfill.removeEventListener('@@webvr-polyfill/input-select-start', this[PRIVATE$10].onSelectStart);
-          this[PRIVATE$10].polyfill.removeEventListener('@@webvr-polyfill/input-select-end', this[PRIVATE$10].onSelectEnd);
-          this.dispatchEvent('end', { session: this });
-        }
-        return $return(this[PRIVATE$10].polyfill.endSession(this[PRIVATE$10].id));
-      }.bind(this));
-    }
-  }, {
-    key: 'device',
-    get: function get$$1() {
-      return this[PRIVATE$10].device;
-    }
-  }, {
-    key: 'immersive',
-    get: function get$$1() {
-      return this[PRIVATE$10].immersive;
-    }
-  }, {
-    key: 'outputContext',
-    get: function get$$1() {
-      return this[PRIVATE$10].outputContext;
-    }
-  }, {
-    key: 'depthNear',
-    get: function get$$1() {
-      return this[PRIVATE$10].polyfill.depthNear;
-    }
-    ,
-    set: function set$$1(value) {
-      this[PRIVATE$10].polyfill.depthNear = value;
-    }
-  }, {
-    key: 'depthFar',
-    get: function get$$1() {
-      return this[PRIVATE$10].polyfill.depthFar;
-    }
-    ,
-    set: function set$$1(value) {
-      this[PRIVATE$10].polyfill.depthFar = value;
-    }
-  }, {
-    key: 'environmentBlendMode',
-    get: function get$$1() {
-      return this[PRIVATE$10].polyfill.environmentBlendMode || 'opaque';
-    }
-  }, {
-    key: 'baseLayer',
-    get: function get$$1() {
-      return this[PRIVATE$10].baseLayer;
-    }
-    ,
-    set: function set$$1(value) {
-      if (this[PRIVATE$10].ended) {
-        return;
-      }
-      this[PRIVATE$10].baseLayer = value;
-      this[PRIVATE$10].polyfill.onBaseLayerSet(this[PRIVATE$10].id, value);
+  }
+}
+
+const PRIVATE$5 = Symbol('@@webxr-polyfill/XRViewport');
+class XRViewport {
+  constructor(target) {
+    this[PRIVATE$5] = { target };
+  }
+  get x() { return this[PRIVATE$5].target.x; }
+  get y() { return this[PRIVATE$5].target.y; }
+  get width() { return this[PRIVATE$5].target.width; }
+  get height() { return this[PRIVATE$5].target.height; }
+}
+
+const XREyes = ['left', 'right'];
+const PRIVATE$6 = Symbol('@@webxr-polyfill/XRView');
+class XRView {
+  constructor(device, eye, sessionId) {
+    if (!XREyes.includes(eye)) {
+      throw new Error(`XREye must be one of: ${XREyes}`);
     }
-  }]);
-  return XRSession;
-}(EventTarget);
-
-var PRIVATE$11 = Symbol('@@webxr-polyfill/XRDevice');
-var XRDevice = function (_EventTarget) {
-  inherits(XRDevice, _EventTarget);
-  function XRDevice(polyfill) {
-    classCallCheck(this, XRDevice);
-    if (!polyfill) {
-      throw new Error('XRDevice must receive a PolyfilledXRDevice.');
-    }
-    var _this = possibleConstructorReturn(this, (XRDevice.__proto__ || Object.getPrototypeOf(XRDevice)).call(this));
-    _this[PRIVATE$11] = {
-      polyfill: polyfill,
-      immersiveSession: null,
-      nonImmersiveSessions: new Set()
+    const temp = Object.create(null);
+    const viewport = new XRViewport(temp);
+    this[PRIVATE$6] = {
+      device,
+      eye,
+      viewport,
+      temp,
+      sessionId,
+      transform: null,
     };
-    _this.ondeactive = undefined;
-    return _this;
-  }
-  createClass(XRDevice, [{
-    key: 'supportsSession',
-    value: function supportsSession() {
-      var $args = arguments;return new Promise(function ($return, $error) {
-        var sessionOptions = $args.length > 0 && $args[0] !== undefined ? $args[0] : {};
-        sessionOptions = Object.assign({}, XRSessionCreationOptions, sessionOptions);
-        if (!validateSessionOptions(sessionOptions)) {
-          return $return(Promise.reject(null));
-        }
-        if (!this[PRIVATE$11].polyfill.supportsSession(sessionOptions)) {
-          return $return(Promise.reject(null));
-        }
-        return $return(null);
-      }.bind(this));
-    }
-  }, {
-    key: 'requestSession',
-    value: function requestSession(sessionOptions) {
-      return new Promise(function ($return, $error) {
-        var _this2, sessionId, session, onSessionEnd;
-        _this2 = this;
-        sessionOptions = Object.assign({}, XRSessionCreationOptions, sessionOptions);
-        if (!validateSessionOptions(sessionOptions)) {
-          return $error(new Error('NotSupportedError'));
-        }
-        if (this[PRIVATE$11].immersiveSession && sessionOptions.immersive) {
-          return $error(new Error('InvalidStateError'));
-        }
-        return Promise.resolve(this[PRIVATE$11].polyfill.requestSession(sessionOptions)).then(function ($await_1) {
-          try {
-            sessionId = $await_1;
-            session = new XRSession(this[PRIVATE$11].polyfill, this, sessionOptions, sessionId);
-            if (sessionOptions.immersive) {
-              this[PRIVATE$11].immersiveSession = session;
-            } else {
-              this[PRIVATE$11].nonImmersiveSessions.add(session);
-            }
-            onSessionEnd = function onSessionEnd() {
-              if (session.immersive) {
-                _this2[PRIVATE$11].immersiveSession = null;
-              } else {
-                _this2[PRIVATE$11].nonImmersiveSessions.delete(session);
-              }
-              session.removeEventListener('end', onSessionEnd);
-            };
-            session.addEventListener('end', onSessionEnd);
-            return $return(session);
-          } catch ($boundEx) {
-            return $error($boundEx);
-          }
-        }.bind(this), $error);
-      }.bind(this));
-    }
-  }]);
-  return XRDevice;
-}(EventTarget);
-
-var domPointROExport = 'DOMPointReadOnly' in _global ? DOMPointReadOnly : null;
-if (!domPointROExport) {
-  var PRIVATE$12 = Symbol('@@webxr-polyfill/DOMPointReadOnly');
-  domPointROExport = function () {
-    function DOMPointReadOnly(x, y, z, w) {
-      classCallCheck(this, DOMPointReadOnly);
-      if (arguments.length === 1) {
-        this[PRIVATE$12] = {
-          x: x.x,
-          y: x.y,
-          z: x.z,
-          w: x.w
-        };
-      } else if (arguments.length === 4) {
-        this[PRIVATE$12] = {
-          x: x,
-          y: y,
-          z: z,
-          w: w
-        };
-      } else {
-        throw new TypeError('Must supply either 1 or 4 arguments');
-      }
+  }
+  get eye() { return this[PRIVATE$6].eye; }
+  get projectionMatrix() { return this[PRIVATE$6].device.getProjectionMatrix(this.eye); }
+  get transform() { return this[PRIVATE$6].transform; }
+  _updateViewMatrix(viewMatrix) {
+    let invMatrix = identity(new Float32Array(16));
+    invert(invMatrix, viewMatrix);
+    this[PRIVATE$6].transform = new XRRigidTransform$1(invMatrix);
+  }
+  _getViewport(layer) {
+    if (this[PRIVATE$6].device.getViewport(this[PRIVATE$6].sessionId,
+                                           this.eye,
+                                           layer,
+                                           this[PRIVATE$6].temp)) {
+      return this[PRIVATE$6].viewport;
     }
-    createClass(DOMPointReadOnly, [{
-      key: 'x',
-      get: function get$$1() {
-        return this[PRIVATE$12].x;
-      }
-    }, {
-      key: 'y',
-      get: function get$$1() {
-        return this[PRIVATE$12].y;
-      }
-    }, {
-      key: 'z',
-      get: function get$$1() {
-        return this[PRIVATE$12].z;
-      }
-    }, {
-      key: 'w',
-      get: function get$$1() {
-        return this[PRIVATE$12].w;
-      }
-    }]);
-    return DOMPointReadOnly;
-  }();
+    return undefined;
+  }
+}
+
+var EPSILON$1 = 0.000001;
+var ARRAY_TYPE$1 = typeof Float32Array !== 'undefined' ? Float32Array : Array;
+
+
+var degree$1 = Math.PI / 180;
+
+function create$7() {
+  var out = new ARRAY_TYPE$1(9);
+  if (ARRAY_TYPE$1 != Float32Array) {
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+    out[5] = 0;
+    out[6] = 0;
+    out[7] = 0;
+  }
+  out[0] = 1;
+  out[4] = 1;
+  out[8] = 1;
+  return out;
 }
-var DOMPointReadOnly$1 = domPointROExport;
 
-var XRRay =
-function XRRay() {
-  var origin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : new DOMPointReadOnly$1(0, 0, 0, 1);
-  var direction = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : new DOMPointReadOnly$1(0, 0, -1, 0);
-  var transformMatrix = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : new Float32Array(16);
-  classCallCheck(this, XRRay);
-  if (!(origin instanceof DOMPointReadOnly$1)) {
-    throw new Error('origin must be a DOMPointReadOnly');
-  }
-  if (!(direction instanceof DOMPointReadOnly$1)) {
-    throw new Error('direction must be a DOMPointReadOnly');
-  }
-  if (!(transformMatrix instanceof Float32Array)) {
-    throw new Error('transformMatrix must be a Float32Array');
-  }
-  Object.defineProperties(this, {
-    origin: {
-      value: origin,
-      writable: false
-    },
-    direction: {
-      value: direction,
-      writable: false
-    },
-    transformMatrix: {
-      value: transformMatrix,
-      writable: false
-    }
-  });
-};
+function create$9() {
+  var out = new ARRAY_TYPE$1(3);
+  if (ARRAY_TYPE$1 != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+  }
+  return out;
+}
+
+function length$3(a) {
+  var x = a[0];
+  var y = a[1];
+  var z = a[2];
+  return Math.sqrt(x * x + y * y + z * z);
+}
+function fromValues$9(x, y, z) {
+  var out = new ARRAY_TYPE$1(3);
+  out[0] = x;
+  out[1] = y;
+  out[2] = z;
+  return out;
+}
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+function normalize$3(out, a) {
+  var x = a[0];
+  var y = a[1];
+  var z = a[2];
+  var len = x * x + y * y + z * z;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    out[0] = a[0] * len;
+    out[1] = a[1] * len;
+    out[2] = a[2] * len;
+  }
+  return out;
+}
+function dot$3(a, b) {
+  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
+}
+function cross$1(out, a, b) {
+  var ax = a[0],
+      ay = a[1],
+      az = a[2];
+  var bx = b[0],
+      by = b[1],
+      bz = b[2];
+  out[0] = ay * bz - az * by;
+  out[1] = az * bx - ax * bz;
+  out[2] = ax * by - ay * bx;
+  return out;
+}
+
+
+
+
+
 
-var PRIVATE$13 = Symbol('@@webxr-polyfill/XRInputPose');
-var XRInputPose = function () {
-  function XRInputPose(inputSourceImpl, hasGripMatrix) {
-    classCallCheck(this, XRInputPose);
-    this[PRIVATE$13] = {
-      inputSourceImpl: inputSourceImpl,
-      targetRay: new XRRay(),
-      gripMatrix: hasGripMatrix ? create() : null
-    };
-  }
-  createClass(XRInputPose, [{
-    key: 'targetRay',
-    get: function get$$1() {
-      return this[PRIVATE$13].targetRay;
-    }
-    ,
-    set: function set$$1(value) {
-      this[PRIVATE$13].targetRay = value;
-    }
-  }, {
-    key: 'emulatedPosition',
-    get: function get$$1() {
-      return this[PRIVATE$13].inputSourceImpl.emulatedPosition;
-    }
-  }, {
-    key: 'gripMatrix',
-    get: function get$$1() {
-      return this[PRIVATE$13].gripMatrix;
-    }
-  }]);
-  return XRInputPose;
-}();
 
-var PRIVATE$14 = Symbol('@@webxr-polyfill/XRInputSource');
-var XRInputSource = function () {
-  function XRInputSource(impl) {
-    classCallCheck(this, XRInputSource);
-    this[PRIVATE$14] = {
-      impl: impl
-    };
-  }
-  createClass(XRInputSource, [{
-    key: 'handedness',
-    get: function get$$1() {
-      return this[PRIVATE$14].impl.handedness;
-    }
-  }, {
-    key: 'targetRayMode',
-    get: function get$$1() {
-      return this[PRIVATE$14].impl.targetRayMode;
-    }
-  }]);
-  return XRInputSource;
-}();
 
-var XRLayer = function () {
-  function XRLayer() {
-    classCallCheck(this, XRLayer);
-  }
-  createClass(XRLayer, [{
-    key: "getViewport",
-    value: function getViewport(view) {
-      return view._getViewport(this);
-    }
-  }]);
-  return XRLayer;
-}();
 
-var POLYFILLED_COMPATIBLE_XR_DEVICE = Symbol('@@webxr-polyfill/polyfilled-compatible-xr-device');
-var COMPATIBLE_XR_DEVICE = Symbol('@@webxr-polyfill/compatible-xr-device');
 
-var PRIVATE$15 = Symbol('@@webxr-polyfill/XRWebGLLayer');
-var XRWebGLLayerInit = Object.freeze({
-  antialias: true,
-  depth: false,
-  stencil: false,
-  alpha: true,
-  multiview: false,
-  framebufferScaleFactor: 0
-});
-var XRWebGLLayer = function (_XRLayer) {
-  inherits(XRWebGLLayer, _XRLayer);
-  function XRWebGLLayer(session, context) {
-    var layerInit = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
-    classCallCheck(this, XRWebGLLayer);
-    var config = Object.assign({}, XRWebGLLayerInit, layerInit);
-    if (!(session instanceof XRSession)) {
-      throw new Error('session must be a XRSession');
-    }
-    if (session.ended) {
-      throw new Error('InvalidStateError');
-    }
-    if (context[POLYFILLED_COMPATIBLE_XR_DEVICE]) {
-      if (context[COMPATIBLE_XR_DEVICE] !== session.device) {
-        throw new Error('InvalidStateError');
-      }
-    }
-    var framebuffer = context.getParameter(context.FRAMEBUFFER_BINDING);
-    var _this = possibleConstructorReturn(this, (XRWebGLLayer.__proto__ || Object.getPrototypeOf(XRWebGLLayer)).call(this));
-    _this[PRIVATE$15] = {
-      context: context,
-      config: config,
-      framebuffer: framebuffer
-    };
-    return _this;
-  }
-  createClass(XRWebGLLayer, [{
-    key: 'requestViewportScaling',
-    value: function requestViewportScaling(viewportScaleFactor) {
-      console.warn('requestViewportScaling is not yet implemented');
-    }
-  }, {
-    key: 'context',
-    get: function get$$1() {
-      return this[PRIVATE$15].context;
-    }
-  }, {
-    key: 'antialias',
-    get: function get$$1() {
-      return this[PRIVATE$15].config.antialias;
-    }
-  }, {
-    key: 'depth',
-    get: function get$$1() {
-      return this[PRIVATE$15].config.depth;
-    }
-  }, {
-    key: 'stencil',
-    get: function get$$1() {
-      return this[PRIVATE$15].config.stencil;
-    }
-  }, {
-    key: 'alpha',
-    get: function get$$1() {
-      return this[PRIVATE$15].config.alpha;
-    }
-  }, {
-    key: 'multiview',
-    get: function get$$1() {
-      return false;
-    }
-  }, {
-    key: 'framebuffer',
-    get: function get$$1() {
-      return this[PRIVATE$15].framebuffer;
-    }
-  }, {
-    key: 'framebufferWidth',
-    get: function get$$1() {
-      return this[PRIVATE$15].context.drawingBufferWidth;
+
+
+
+
+
+
+
+
+
+var len$3 = length$3;
+
+var forEach$2 = function () {
+  var vec = create$9();
+  return function (a, stride, offset, count, fn, arg) {
+    var i = void 0,
+        l = void 0;
+    if (!stride) {
+      stride = 3;
     }
-  }, {
-    key: 'framebufferHeight',
-    get: function get$$1() {
-      return this[PRIVATE$15].context.drawingBufferHeight;
+    if (!offset) {
+      offset = 0;
     }
-  }]);
-  return XRWebGLLayer;
-}(XRLayer);
-
-var API = {
-  XR: XR,
-  XRDevice: XRDevice,
-  XRSession: XRSession,
-  XRFrame: XRFrame,
-  XRView: XRView,
-  XRViewport: XRViewport,
-  XRDevicePose: XRDevicePose,
-  XRLayer: XRLayer,
-  XRWebGLLayer: XRWebGLLayer,
-  XRPresentationContext: XRPresentationContext,
-  XRCoordinateSystem: XRCoordinateSystem,
-  XRFrameOfReference: XRFrameOfReference,
-  XRStageBounds: XRStageBounds,
-  XRStageBoundsPoint: XRStageBoundsPoint,
-  XRInputPose: XRInputPose,
-  XRInputSource: XRInputSource,
-  XRRay: XRRay
-};
-
-var extendContextCompatibleXRDevice = function extendContextCompatibleXRDevice(Context) {
-  if (typeof Context.prototype.setCompatibleXRDevice === 'function') {
-    return false;
-  }
-  Context.prototype.setCompatibleXRDevice = function (xrDevice) {
-    var _this = this;
-    return new Promise(function (resolve, reject) {
-      if (xrDevice && typeof xrDevice.requestSession === 'function') {
-        resolve();
-      } else {
-        reject();
-      }
-    }).then(function () {
-      return _this[COMPATIBLE_XR_DEVICE] = xrDevice;
-    });
-  };
-  return true;
-};
-var extendGetContext = function extendGetContext(Canvas) {
-  var getContext = HTMLCanvasElement.prototype.getContext;
-  HTMLCanvasElement.prototype.getContext = function (contextType, glAttribs) {
-    if (contextType === 'xrpresent') {
-      var _ctx = getContext.call(this, '2d', glAttribs);
-      return new XRPresentationContext(this, _ctx, glAttribs);
+    if (count) {
+      l = Math.min(count * stride + offset, a.length);
+    } else {
+      l = a.length;
     }
-    var ctx = getContext.call(this, contextType, glAttribs);
-    ctx[POLYFILLED_COMPATIBLE_XR_DEVICE] = true;
-    if (glAttribs && 'compatibleXRDevice' in glAttribs) {
-      ctx[COMPATIBLE_XR_DEVICE] = glAttribs.compatibleXRDevice;
+    for (i = offset; i < l; i += stride) {
+      vec[0] = a[i];vec[1] = a[i + 1];vec[2] = a[i + 2];
+      fn(vec, vec, arg);
+      a[i] = vec[0];a[i + 1] = vec[1];a[i + 2] = vec[2];
     }
-    return ctx;
+    return a;
   };
-};
+}();
 
-function create$1() {
-  var out = new ARRAY_TYPE(3);
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  return out;
-}
-function clone$1(a) {
-  var out = new ARRAY_TYPE(3);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
+function create$10() {
+  var out = new ARRAY_TYPE$1(4);
+  if (ARRAY_TYPE$1 != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+    out[3] = 0;
+  }
   return out;
 }
-function length(a) {
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+function normalize$4(out, a) {
   var x = a[0];
   var y = a[1];
   var z = a[2];
-  return Math.sqrt(x * x + y * y + z * z);
-}
-function fromValues$1(x, y, z) {
-  var out = new ARRAY_TYPE(3);
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
+  var w = a[3];
+  var len = x * x + y * y + z * z + w * w;
+  if (len > 0) {
+    len = 1 / Math.sqrt(len);
+    out[0] = x * len;
+    out[1] = y * len;
+    out[2] = z * len;
+    out[3] = w * len;
+  }
   return out;
 }
-function copy$1(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+var forEach$3 = function () {
+  var vec = create$10();
+  return function (a, stride, offset, count, fn, arg) {
+    var i = void 0,
+        l = void 0;
+    if (!stride) {
+      stride = 4;
+    }
+    if (!offset) {
+      offset = 0;
+    }
+    if (count) {
+      l = Math.min(count * stride + offset, a.length);
+    } else {
+      l = a.length;
+    }
+    for (i = offset; i < l; i += stride) {
+      vec[0] = a[i];vec[1] = a[i + 1];vec[2] = a[i + 2];vec[3] = a[i + 3];
+      fn(vec, vec, arg);
+      a[i] = vec[0];a[i + 1] = vec[1];a[i + 2] = vec[2];a[i + 3] = vec[3];
+    }
+    return a;
+  };
+}();
+
+function create$11() {
+  var out = new ARRAY_TYPE$1(4);
+  if (ARRAY_TYPE$1 != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
+    out[2] = 0;
+  }
+  out[3] = 1;
   return out;
 }
-function set$2(out, x, y, z) {
-  out[0] = x;
-  out[1] = y;
-  out[2] = z;
+
+function setAxisAngle$1(out, axis, rad) {
+  rad = rad * 0.5;
+  var s = Math.sin(rad);
+  out[0] = s * axis[0];
+  out[1] = s * axis[1];
+  out[2] = s * axis[2];
+  out[3] = Math.cos(rad);
   return out;
 }
-function add$1(out, a, b) {
-  out[0] = a[0] + b[0];
-  out[1] = a[1] + b[1];
-  out[2] = a[2] + b[2];
+
+
+
+
+
+
+function slerp$1(out, a, b, t) {
+  var ax = a[0],
+      ay = a[1],
+      az = a[2],
+      aw = a[3];
+  var bx = b[0],
+      by = b[1],
+      bz = b[2],
+      bw = b[3];
+  var omega = void 0,
+      cosom = void 0,
+      sinom = void 0,
+      scale0 = void 0,
+      scale1 = void 0;
+  cosom = ax * bx + ay * by + az * bz + aw * bw;
+  if (cosom < 0.0) {
+    cosom = -cosom;
+    bx = -bx;
+    by = -by;
+    bz = -bz;
+    bw = -bw;
+  }
+  if (1.0 - cosom > EPSILON$1) {
+    omega = Math.acos(cosom);
+    sinom = Math.sin(omega);
+    scale0 = Math.sin((1.0 - t) * omega) / sinom;
+    scale1 = Math.sin(t * omega) / sinom;
+  } else {
+    scale0 = 1.0 - t;
+    scale1 = t;
+  }
+  out[0] = scale0 * ax + scale1 * bx;
+  out[1] = scale0 * ay + scale1 * by;
+  out[2] = scale0 * az + scale1 * bz;
+  out[3] = scale0 * aw + scale1 * bw;
   return out;
 }
-function subtract$1(out, a, b) {
-  out[0] = a[0] - b[0];
-  out[1] = a[1] - b[1];
-  out[2] = a[2] - b[2];
+
+
+
+function fromMat3$1(out, m) {
+  var fTrace = m[0] + m[4] + m[8];
+  var fRoot = void 0;
+  if (fTrace > 0.0) {
+    fRoot = Math.sqrt(fTrace + 1.0);
+    out[3] = 0.5 * fRoot;
+    fRoot = 0.5 / fRoot;
+    out[0] = (m[5] - m[7]) * fRoot;
+    out[1] = (m[6] - m[2]) * fRoot;
+    out[2] = (m[1] - m[3]) * fRoot;
+  } else {
+    var i = 0;
+    if (m[4] > m[0]) i = 1;
+    if (m[8] > m[i * 3 + i]) i = 2;
+    var j = (i + 1) % 3;
+    var k = (i + 2) % 3;
+    fRoot = Math.sqrt(m[i * 3 + i] - m[j * 3 + j] - m[k * 3 + k] + 1.0);
+    out[i] = 0.5 * fRoot;
+    fRoot = 0.5 / fRoot;
+    out[3] = (m[j * 3 + k] - m[k * 3 + j]) * fRoot;
+    out[j] = (m[j * 3 + i] + m[i * 3 + j]) * fRoot;
+    out[k] = (m[k * 3 + i] + m[i * 3 + k]) * fRoot;
+  }
   return out;
 }
 
@@ -1574,122 +1446,128 @@ function subtract$1(out, a, b) {
 
 
 
-function scale$1(out, a, b) {
-  out[0] = a[0] * b;
-  out[1] = a[1] * b;
-  out[2] = a[2] * b;
-  return out;
-}
 
 
 
 
 
 
-function normalize(out, a) {
-  var x = a[0];
-  var y = a[1];
-  var z = a[2];
-  var len = x * x + y * y + z * z;
-  if (len > 0) {
-    len = 1 / Math.sqrt(len);
-    out[0] = a[0] * len;
-    out[1] = a[1] * len;
-    out[2] = a[2] * len;
+
+
+var normalize$5 = normalize$4;
+
+
+var rotationTo$1 = function () {
+  var tmpvec3 = create$9();
+  var xUnitVec3 = fromValues$9(1, 0, 0);
+  var yUnitVec3 = fromValues$9(0, 1, 0);
+  return function (out, a, b) {
+    var dot = dot$3(a, b);
+    if (dot < -0.999999) {
+      cross$1(tmpvec3, xUnitVec3, a);
+      if (len$3(tmpvec3) < 0.000001) cross$1(tmpvec3, yUnitVec3, a);
+      normalize$3(tmpvec3, tmpvec3);
+      setAxisAngle$1(out, tmpvec3, Math.PI);
+      return out;
+    } else if (dot > 0.999999) {
+      out[0] = 0;
+      out[1] = 0;
+      out[2] = 0;
+      out[3] = 1;
+      return out;
+    } else {
+      cross$1(tmpvec3, a, b);
+      out[0] = tmpvec3[0];
+      out[1] = tmpvec3[1];
+      out[2] = tmpvec3[2];
+      out[3] = 1 + dot;
+      return normalize$5(out, out);
+    }
+  };
+}();
+var sqlerp$1 = function () {
+  var temp1 = create$11();
+  var temp2 = create$11();
+  return function (out, a, b, c, d, t) {
+    slerp$1(temp1, a, d, t);
+    slerp$1(temp2, b, c, t);
+    slerp$1(out, temp1, temp2, 2 * t * (1 - t));
+    return out;
+  };
+}();
+var setAxes$1 = function () {
+  var matr = create$7();
+  return function (out, view, right, up) {
+    matr[0] = right[0];
+    matr[3] = right[1];
+    matr[6] = right[2];
+    matr[1] = up[0];
+    matr[4] = up[1];
+    matr[7] = up[2];
+    matr[2] = -view[0];
+    matr[5] = -view[1];
+    matr[8] = -view[2];
+    return normalize$5(out, fromMat3$1(out, matr));
+  };
+}();
+
+function create$13() {
+  var out = new ARRAY_TYPE$1(2);
+  if (ARRAY_TYPE$1 != Float32Array) {
+    out[0] = 0;
+    out[1] = 0;
   }
   return out;
 }
-function dot(a, b) {
-  return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
-}
-function cross(out, a, b) {
-  var ax = a[0],
-      ay = a[1],
-      az = a[2];
-  var bx = b[0],
-      by = b[1],
-      bz = b[2];
-  out[0] = ay * bz - az * by;
-  out[1] = az * bx - ax * bz;
-  out[2] = ax * by - ay * bx;
-  return out;
-}
 
 
 
 
-function transformMat4(out, a, m) {
-  var x = a[0],
-      y = a[1],
-      z = a[2];
-  var w = m[3] * x + m[7] * y + m[11] * z + m[15];
-  w = w || 1.0;
-  out[0] = (m[0] * x + m[4] * y + m[8] * z + m[12]) / w;
-  out[1] = (m[1] * x + m[5] * y + m[9] * z + m[13]) / w;
-  out[2] = (m[2] * x + m[6] * y + m[10] * z + m[14]) / w;
-  return out;
-}
 
-function transformQuat(out, a, q) {
-  var qx = q[0],
-      qy = q[1],
-      qz = q[2],
-      qw = q[3];
-  var x = a[0],
-      y = a[1],
-      z = a[2];
-  var uvx = qy * z - qz * y,
-      uvy = qz * x - qx * z,
-      uvz = qx * y - qy * x;
-  var uuvx = qy * uvz - qz * uvy,
-      uuvy = qz * uvx - qx * uvz,
-      uuvz = qx * uvy - qy * uvx;
-  var w2 = qw * 2;
-  uvx *= w2;
-  uvy *= w2;
-  uvz *= w2;
-  uuvx *= 2;
-  uuvy *= 2;
-  uuvz *= 2;
-  out[0] = x + uvx + uuvx;
-  out[1] = y + uvy + uuvy;
-  out[2] = z + uvz + uuvz;
-  return out;
-}
 
 
 
-function angle(a, b) {
-  var tempA = fromValues$1(a[0], a[1], a[2]);
-  var tempB = fromValues$1(b[0], b[1], b[2]);
-  normalize(tempA, tempA);
-  normalize(tempB, tempB);
-  var cosine = dot(tempA, tempB);
-  if (cosine > 1.0) {
-    return 0;
-  } else if (cosine < -1.0) {
-    return Math.PI;
-  } else {
-    return Math.acos(cosine);
-  }
-}
 
 
 
-var sub$1 = subtract$1;
 
 
 
 
-var len = length;
 
-var forEach = function () {
-  var vec = create$1();
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+var forEach$4 = function () {
+  var vec = create$13();
   return function (a, stride, offset, count, fn, arg) {
     var i = void 0,
         l = void 0;
     if (!stride) {
-      stride = 3;
+      stride = 2;
     }
     if (!offset) {
       offset = 0;
@@ -1700,33 +1578,511 @@ var forEach = function () {
       l = a.length;
     }
     for (i = offset; i < l; i += stride) {
-      vec[0] = a[i];vec[1] = a[i + 1];vec[2] = a[i + 2];
+      vec[0] = a[i];vec[1] = a[i + 1];
       fn(vec, vec, arg);
-      a[i] = vec[0];a[i + 1] = vec[1];a[i + 2] = vec[2];
+      a[i] = vec[0];a[i + 1] = vec[1];
+    }
+    return a;
+  };
+}();
+
+const PRIVATE$7 = Symbol('@@webxr-polyfill/XRFrame');
+class XRFrame {
+  constructor(device, session, sessionId) {
+    const views = [
+      new XRView(device, 'left', sessionId),
+    ];
+    if (session.immersive) {
+      views.push(new XRView(device, 'right', sessionId));
+    }
+    this[PRIVATE$7] = {
+      device,
+      viewerPose: new XRViewerPose(device, views),
+      views,
+      session,
+    };
+  }
+  get session() { return this[PRIVATE$7].session; }
+  getViewerPose(space) {
+    this[PRIVATE$7].viewerPose.updateFromReferenceSpace(space);
+    return this[PRIVATE$7].viewerPose;
+  }
+  getPose(space, baseSpace) {
+    if (space._specialType === "viewer") {
+      let viewerPose = this.getViewerPose(baseSpace);
+      return new XRPose(
+        new XRRigidTransform(viewerPose.poseModelMatrix),
+        viewerPose.emulatedPosition);
+    }
+    if (space._specialType === "target-ray" || space._specialType === "grip") {
+      return this[PRIVATE$7].device.getInputPose(
+        space._inputSource, baseSpace, space._specialType);
+    }
+    return null;
+  }
+}
+
+const PRIVATE$8 = Symbol('@@webxr-polyfill/XRStageBoundsPoint');
+class XRStageBoundsPoint {
+  constructor(x, z) {
+    this[PRIVATE$8] = { x, z };
+  }
+  get x() { return this[PRIVATE$8].x; }
+  get z() { return this[PRIVATE$8].z; }
+}
+
+const PRIVATE$9 = Symbol('@@webxr-polyfill/XRStageBounds');
+class XRStageBounds {
+  constructor(boundsData) {
+    const geometry = [];
+    for (let i = 0; i < boundsData.length; i += 2) {
+      geometry.push(new XRStageBoundsPoint(boundsData[i], boundsData[i + 1]));
+    }
+    this[PRIVATE$9] = { geometry };
+  }
+  get geometry() { return this[PRIVATE$9].geometry; }
+}
+
+const PRIVATE$10 = Symbol('@@webxr-polyfill/XRSpace');
+class XRSpace {
+  constructor(specialType = null, inputSource = null) {
+    this[PRIVATE$10] = {
+      specialType,
+      inputSource,
+    };
+  }
+  get _specialType() {
+    return this[PRIVATE$10].specialType;
+  }
+  get _inputSource() {
+    return this[PRIVATE$10].inputSource;
+  }
+}
+
+const DEFAULT_EMULATION_HEIGHT = 1.6;
+const PRIVATE$11 = Symbol('@@webxr-polyfill/XRReferenceSpace');
+const XRReferenceSpaceTypes = [
+  'viewer',
+  'local',
+  'local-floor',
+  'bounded-floor',
+  'unbounded'
+];
+const XRReferenceSpaceOptions = Object.freeze({
+  disableStageEmulation: false,
+  stageEmulationHeight: 0,
+});
+class XRReferenceSpace extends XRSpace {
+  constructor(device, type, options, transform, bounds) {
+    options = Object.assign({}, XRReferenceSpaceOptions, options);
+    if (!XRReferenceSpaceTypes.includes(type)) {
+      throw new Error(`XRReferenceSpaceType must be one of ${XRReferenceSpaceTypes}`);
+    }
+    super((type === 'viewer') ? 'viewer' : null);
+    if (this._isFloor(type) && options.disableStageEmulation && !transform) {
+      throw new Error(`XRReferenceSpace cannot use 'bounded-floor' type, if disabling emulation and platform does not provide`);
+    }
+    if (type === 'bounded-floor') {
+      throw new Error('The polyfill does not support creating bounded reference spaces.');
+    }
+    const { disableStageEmulation, stageEmulationHeight } = options;
+    let emulatedHeight = 0;
+    if (this._isFloor(type) && !transform) {
+      emulatedHeight = stageEmulationHeight !== 0 ? stageEmulationHeight : DEFAULT_EMULATION_HEIGHT;
+      transform = identity(new Float32Array(16));
+      transform[13] = emulatedHeight;
+    }
+    if (!transform) {
+      transform = identity(new Float32Array(16));
+    }
+    this[PRIVATE$11] = {
+      disableStageEmulation,
+      stageEmulationHeight,
+      emulatedHeight,
+      type,
+      transform,
+      device,
+      bounds,
+      options,
+      originOffset : identity(new Float32Array(16)),
+    };
+    this.onboundschange = undefined;
+  }
+  _isFloor(type) {
+    return type === 'bounded-floor' || type === 'local-floor';
+  }
+  get bounds() { return this[PRIVATE$11].bounds; }
+  get emulatedHeight() { return this[PRIVATE$11].emulatedHeight; }
+  get type() { return this[PRIVATE$11].type; }
+  transformBasePoseMatrix(out, pose) {
+    multiply(out, this[PRIVATE$11].transform, pose);
+  }
+  transformBaseViewMatrix(out, view) {
+    invert(out, this[PRIVATE$11].transform);
+    multiply(out, view, out);
+  }
+  _originOffsetMatrix() {
+    return this[PRIVATE$11].originOffset;
+  }
+  _adjustForOriginOffset(transformMatrix) {
+    let inverseOriginOffsetMatrix = identity(new Float32Array(16));
+    invert(inverseOriginOffsetMatrix, this[PRIVATE$11].originOffset);
+    multiply(transformMatrix, inverseOriginOffsetMatrix, transformMatrix);
+  }
+  getOffsetReferenceSpace(additionalOffset) {
+    let newSpace = new XRReferenceSpace(
+      this[PRIVATE$11].device,
+      this[PRIVATE$11].type,
+      this[PRIVATE$11].options,
+      this[PRIVATE$11].transform,
+      this[PRIVATE$11].bounds);
+    multiply(newSpace[PRIVATE$11].originOffset, this[PRIVATE$11].originOffset, additionalOffset.matrix);
+    return newSpace;
+  }
+}
+
+const POLYFILLED_XR_COMPATIBLE = Symbol('@@webxr-polyfill/polyfilled-xr-compatible');
+const XR_COMPATIBLE = Symbol('@@webxr-polyfill/xr-compatible');
+
+const PRIVATE$12 = Symbol('@@webxr-polyfill/XRWebGLLayer');
+const XRWebGLLayerInit = Object.freeze({
+  antialias: true,
+  depth: false,
+  stencil: false,
+  alpha: true,
+  multiview: false,
+  ignoreDepthValues: false,
+  framebufferScaleFactor: 1.0,
+});
+class XRWebGLLayer {
+  constructor(session, context, layerInit={}) {
+    const config = Object.assign({}, XRWebGLLayerInit, layerInit);
+    if (!(session instanceof XRSession$1)) {
+      throw new Error('session must be a XRSession');
+    }
+    if (session.ended) {
+      throw new Error(`InvalidStateError`);
+    }
+    if (context[POLYFILLED_XR_COMPATIBLE]) {
+      if (context[XR_COMPATIBLE] !== true) {
+        throw new Error(`InvalidStateError`);
+      }
+    }
+    const framebuffer = context.getParameter(context.FRAMEBUFFER_BINDING);
+    this[PRIVATE$12] = {
+      context,
+      config,
+      framebuffer,
+      session,
+    };
+  }
+  get context() { return this[PRIVATE$12].context; }
+  get antialias() { return this[PRIVATE$12].config.antialias; }
+  get ignoreDepthValues() { return true; }
+  get framebuffer() { return this[PRIVATE$12].framebuffer; }
+  get framebufferWidth() { return this[PRIVATE$12].context.drawingBufferWidth; }
+  get framebufferHeight() { return this[PRIVATE$12].context.drawingBufferHeight; }
+  get _session() { return this[PRIVATE$12].session; }
+  getViewport(view) {
+    return view._getViewport(this);
+  }
+}
+
+const PRIVATE$13 = Symbol('@@webxr-polyfill/XRSession');
+class XRSession$1 extends EventTarget {
+  constructor(device, mode, id) {
+    super();
+    let immersive = mode != 'inline';
+    let outputContext = null;
+    this[PRIVATE$13] = {
+      device,
+      mode,
+      immersive,
+      outputContext,
+      ended: false,
+      suspended: false,
+      suspendedCallback: null,
+      id,
+      activeRenderState: null,
+      pendingRenderState: null,
+    };
+    const frame = new XRFrame(device, this, this[PRIVATE$13].id);
+    this[PRIVATE$13].frame = frame;
+    this[PRIVATE$13].onPresentationEnd = sessionId => {
+      if (sessionId !== this[PRIVATE$13].id) {
+        this[PRIVATE$13].suspended = false;
+        this.dispatchEvent('focus', { session: this });
+        const suspendedCallback = this[PRIVATE$13].suspendedCallback;
+        this[PRIVATE$13].suspendedCallback = null;
+        if (suspendedCallback) {
+          this.requestAnimationFrame(suspendedCallback);
+        }
+        return;
+      }
+      this[PRIVATE$13].ended = true;
+      device.removeEventListener('@webvr-polyfill/vr-present-end', this[PRIVATE$13].onPresentationEnd);
+      device.removeEventListener('@webvr-polyfill/vr-present-start', this[PRIVATE$13].onPresentationStart);
+      device.removeEventListener('@@webvr-polyfill/input-select-start', this[PRIVATE$13].onSelectStart);
+      device.removeEventListener('@@webvr-polyfill/input-select-end', this[PRIVATE$13].onSelectEnd);
+      this.dispatchEvent('end', { session: this });
+    };
+    device.addEventListener('@@webxr-polyfill/vr-present-end', this[PRIVATE$13].onPresentationEnd);
+    this[PRIVATE$13].onPresentationStart = sessionId => {
+      if (sessionId === this[PRIVATE$13].id) {
+        return;
+      }
+      this[PRIVATE$13].suspended = true;
+      this.dispatchEvent('blur', { session: this });
+    };
+    device.addEventListener('@@webxr-polyfill/vr-present-start', this[PRIVATE$13].onPresentationStart);
+    this[PRIVATE$13].onSelectStart = evt => {
+      if (evt.sessionId !== this[PRIVATE$13].id) {
+        return;
+      }
+      this.dispatchEvent('selectstart', {
+        frame: this[PRIVATE$13].frame,
+        inputSource: evt.inputSource
+      });
+    };
+    device.addEventListener('@@webxr-polyfill/input-select-start', this[PRIVATE$13].onSelectStart);
+    this[PRIVATE$13].onSelectEnd = evt => {
+      if (evt.sessionId !== this[PRIVATE$13].id) {
+        return;
+      }
+      this.dispatchEvent('selectend', {
+        frame: this[PRIVATE$13].frame,
+        inputSource: evt.inputSource
+      });
+      this.dispatchEvent('select',  {
+        frame: this[PRIVATE$13].frame,
+        inputSource: evt.inputSource
+      });
+    };
+    device.addEventListener('@@webxr-polyfill/input-select-end', this[PRIVATE$13].onSelectEnd);
+    this.onblur = undefined;
+    this.onfocus = undefined;
+    this.onresetpose = undefined;
+    this.onend = undefined;
+    this.onselect = undefined;
+    this.onselectstart = undefined;
+    this.onselectend = undefined;
+  }
+  get renderState() { return this[PRIVATE$13].activeRenderState; }
+  get immersive() { return this[PRIVATE$13].immersive; }
+  get outputContext() { return this[PRIVATE$13].outputContext; }
+  get depthNear() { return this[PRIVATE$13].device.depthNear; }
+  set depthNear(value) { this[PRIVATE$13].device.depthNear = value; }
+  get depthFar() { return this[PRIVATE$13].device.depthFar; }
+  set depthFar(value) { this[PRIVATE$13].device.depthFar = value; }
+  get environmentBlendMode() {
+    return this[PRIVATE$13].device.environmentBlendMode || 'opaque';
+  }
+  get baseLayer() { return this[PRIVATE$13].baseLayer; }
+  set baseLayer(value) {
+    if (this[PRIVATE$13].ended) {
+      return;
+    }
+    this[PRIVATE$13].baseLayer = value;
+    this[PRIVATE$13].device.onBaseLayerSet(this[PRIVATE$13].id, value);
+  }
+  async requestReferenceSpace(type, options={}) {
+    if (this[PRIVATE$13].ended) {
+      return;
+    }
+    options = Object.assign({}, XRReferenceSpaceOptions, options);
+    if (!XRReferenceSpaceTypes.includes(type)) {
+      throw new TypeError(`XRReferenceSpaceType must be one of ${XRReferenceSpaceTypes}`);
+    }
+    let transform = null;
+    let bounds = null;
+    try {
+      transform = await this[PRIVATE$13].device.requestFrameOfReferenceTransform(type, options);
+    } catch (e) {
+      if (type !== 'stage' || options.disableStageEmulation) {
+        throw e;
+      }
+    }
+    if (type === 'stage' && transform) {
+      bounds = this[PRIVATE$13].device.requestStageBounds();
+      if (bounds) {
+        bounds = new XRStageBounds(bounds);
+      }
+    }
+    return new XRReferenceSpace(this[PRIVATE$13].device, type, options, transform, bounds);
+  }
+  requestAnimationFrame(callback) {
+    if (this[PRIVATE$13].ended) {
+      return;
+    }
+    if (this[PRIVATE$13].suspended && this[PRIVATE$13].suspendedCallback) {
+      return;
+    }
+    if (this[PRIVATE$13].suspended && !this[PRIVATE$13].suspendedCallback) {
+      this[PRIVATE$13].suspendedCallback = callback;
+    }
+    return this[PRIVATE$13].device.requestAnimationFrame(() => {
+      if (this[PRIVATE$13].pendingRenderState !== null) {
+        this[PRIVATE$13].activeRenderState = this[PRIVATE$13].pendingRenderState;
+        this[PRIVATE$13].pendingRenderState = null;
+        if (this[PRIVATE$13].activeRenderState.baseLayer) {
+          this[PRIVATE$13].device.onBaseLayerSet(
+            this[PRIVATE$13].id,
+            this[PRIVATE$13].activeRenderState.baseLayer);
+        }
+        if (this[PRIVATE$13].activeRenderState.inlineVerticalFieldOfView) {
+          this[PRIVATE$13].device.onInlineVerticalFieldOfViewSet(
+            this[PRIVATE$13].id,
+            this[PRIVATE$13].activeRenderState.inlineVerticalFieldOfView);
+        }
+      }
+      this[PRIVATE$13].device.onFrameStart(this[PRIVATE$13].id);
+      callback(now$1(), this[PRIVATE$13].frame);
+      this[PRIVATE$13].device.onFrameEnd(this[PRIVATE$13].id);
+    });
+  }
+  cancelAnimationFrame(handle) {
+    if (this[PRIVATE$13].ended) {
+      return;
+    }
+    this[PRIVATE$13].device.cancelAnimationFrame(handle);
+  }
+  get inputSources() {
+    return this[PRIVATE$13].device.getInputSources();
+  }
+  async end() {
+    if (this[PRIVATE$13].ended) {
+      return;
+    }
+    if (!this.immersive) {
+      this[PRIVATE$13].ended = true;
+      this[PRIVATE$13].device.removeEventListener('@@webvr-polyfill/vr-present-start',
+                                                 this[PRIVATE$13].onPresentationStart);
+      this[PRIVATE$13].device.removeEventListener('@@webvr-polyfill/vr-present-end',
+                                                 this[PRIVATE$13].onPresentationEnd);
+      this[PRIVATE$13].device.removeEventListener('@@webvr-polyfill/input-select-start',
+                                                 this[PRIVATE$13].onSelectStart);
+      this[PRIVATE$13].device.removeEventListener('@@webvr-polyfill/input-select-end',
+                                                 this[PRIVATE$13].onSelectEnd);
+      this.dispatchEvent('end', { session: this });
+    }
+    return this[PRIVATE$13].device.endSession(this[PRIVATE$13].id);
+  }
+  updateRenderState(newState) {
+    if (this[PRIVATE$13].ended) {
+      const message = "Can't call updateRenderState on an XRSession " +
+                      "that has already ended.";
+      throw new Error(message);
+    }
+    if (newState.baseLayer && (newState.baseLayer._session !== this)) {
+      const message = "Called updateRenderState with a base layer that was " +
+                      "created by a different session.";
+      throw new Error(message);
+    }
+    const fovSet = (newState.inlineVerticalFieldOfView !== null) &&
+                   (newState.inlineVerticalFieldOfView !== undefined);
+    if (fovSet) {
+      if (this[PRIVATE$13].immersive) {
+        const message = "inlineVerticalFieldOfView must not be set for an " +
+                        "XRRenderState passed to updateRenderState for an " +
+                        "immersive session.";
+        throw new Error(message);
+      } else {
+        newState.inlineVerticalFieldOfView = Math.min(
+          3.13, Math.max(0.01, newState.inlineVerticalFieldOfView));
+      }
+    }
+    if (this[PRIVATE$13].pendingRenderState === null) {
+      this[PRIVATE$13].pendingRenderState = Object.assign(
+        {}, this[PRIVATE$13].activeRenderState, newState);
+    }
+  }
+}
+
+const PRIVATE$14 = Symbol('@@webxr-polyfill/XRInputSource');
+class XRInputSource {
+  constructor(impl) {
+    this[PRIVATE$14] = {
+      impl,
+      gripSpace: new XRSpace("grip", this),
+      targetRaySpace: new XRSpace("target-ray", this)
+    };
+  }
+  get handedness() { return this[PRIVATE$14].impl.handedness; }
+  get targetRayMode() { return this[PRIVATE$14].impl.targetRayMode; }
+  get gripSpace() {
+    let mode = this[PRIVATE$14].impl.targetRayMode;
+    if (mode === "gaze" || mode === "screen") {
+      return null;
+    }
+    return this[PRIVATE$14].gripSpace;
+  }
+  get targetRaySpace() { return this[PRIVATE$14].targetRaySpace; }
+  get gamepad() { return this[PRIVATE$14].impl.gamepad; }
+}
+
+const PRIVATE$15 = Symbol('@@webxr-polyfill/XRRenderState');
+const XRRenderStateInit = Object.freeze({
+  depthNear: 0.1,
+  depthFar: 1000.0,
+  inlineVerticalFieldOfView: null,
+  baseLayer: null
+});
+class XRRenderState {
+  constructor(stateInit = {}) {
+    const config = Object.assign({}, XRRenderStateInit, stateInit);
+    this[PRIVATE$15] = { config };
+  }
+  get depthNear() { return this[PRIVATE$15].depthNear; }
+  get depthFar() { return this[PRIVATE$15].depthFar; }
+  get inlineVerticalFieldOfView() { return this[PRIVATE$15].inlineVerticalFieldOfView; }
+  get baseLayer() { return this[PRIVATE$15].baseLayer; }
+}
+
+var API = {
+  XR: XR$1,
+  XRSession: XRSession$1,
+  XRFrame,
+  XRView,
+  XRViewport,
+  XRViewerPose,
+  XRWebGLLayer,
+  XRSpace,
+  XRReferenceSpace,
+  XRStageBounds,
+  XRStageBoundsPoint,
+  XRInputSource,
+  XRRenderState,
+  XRRigidTransform: XRRigidTransform$1,
+  XRPose: XRPose$1,
+};
+
+const polyfillMakeXRCompatible = Context => {
+  if (typeof Context.prototype.makeXRCompatible === 'function') {
+    return false;
+  }
+  Context.prototype.makeXRCompatible = function () {
+    this[XR_COMPATIBLE] = true;
+    return Promise.resolve();
+  };
+  return true;
+};
+const polyfillGetContext = (Canvas) => {
+  const getContext = Canvas.prototype.getContext;
+  Canvas.prototype.getContext = function (contextType, glAttribs) {
+    const ctx = getContext.call(this, contextType, glAttribs);
+    ctx[POLYFILLED_XR_COMPATIBLE] = true;
+    if (glAttribs && ('xrCompatible' in glAttribs)) {
+      ctx[XR_COMPATIBLE] = glAttribs.xrCompatible;
     }
-    return a;
+    return ctx;
   };
-}();
-
-var poseMatrixToXRRay = function poseMatrixToXRRay(poseMatrix) {
-  var rayOrigin = [];
-  var rayDirection = [];
-  set$2(rayOrigin, 0, 0, 0);
-  transformMat4(rayOrigin, rayOrigin, poseMatrix);
-  set$2(rayDirection, 0, 0, -1);
-  transformMat4(rayDirection, rayDirection, poseMatrix);
-  sub$1(rayDirection, rayDirection, rayOrigin);
-  normalize(rayDirection, rayDirection);
-  return new XRRay(new DOMPointReadOnly$1(rayOrigin[0], rayOrigin[1], rayOrigin[2], 1.0), new DOMPointReadOnly$1(rayDirection[0], rayDirection[1], rayDirection[2], 0.0), poseMatrix);
-};
-var isMobile = function isMobile(global) {
-  var check = false;
-  (function (a) {
-    if (/(android|bb\d+|meego).+mobile|avantgo|bada\/|blackberry|blazer|compal|elaine|fennec|hiptop|iemobile|ip(hone|od)|iris|kindle|lge |maemo|midp|mmp|mobile.+firefox|netfront|opera m(ob|in)i|palm( os)?|phone|p(ixi|re)\/|plucker|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows ce|xda|xiino/i.test(a) || /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|be(ck|ll|nq)|bi(lb|rd)|bl(ac|az)|br(e|v)w|bumb|bw\-(n|u)|c55\/|capi|ccwa|cdm\-|cell|chtm|cldc|cmd\-|co(mp|nd)|craw|da(it|ll|ng)|dbte|dc\-s|devi|dica|dmob|do(c|p)o|ds(12|\-d)|el(49|ai)|em(l2|ul)|er(ic|k0)|esl8|ez([4-7]0|os|wa|ze)|fetc|fly(\-|_)|g1 u|g560|gene|gf\-5|g\-mo|go(\.w|od)|gr(ad|un)|haie|hcit|hd\-(m|p|t)|hei\-|hi(pt|ta)|hp( i|ip)|hs\-c|ht(c(\-| |_|a|g|p|s|t)|tp)|hu(aw|tc)|i\-(20|go|ma)|i230|iac( |\-|\/)|ibro|idea|ig01|ikom|im1k|inno|ipaq|iris|ja(t|v)a|jbro|jemu|jigs|kddi|keji|kgt( |\/)|klon|kpt |kwc\-|kyo(c|k)|le(no|xi)|lg( g|\/(k|l|u)|50|54|\-[a-w])|libw|lynx|m1\-w|m3ga|m50\/|ma(te|ui|xo)|mc(01|21|ca)|m\-cr|me(rc|ri)|mi(o8|oa|ts)|mmef|mo(01|02|bi|de|do|t(\-| |o|v)|zz)|mt(50|p1|v )|mwbp|mywa|n10[0-2]|n20[2-3]|n30(0|2)|n50(0|2|5)|n7(0(0|1)|10)|ne((c|m)\-|on|tf|wf|wg|wt)|nok(6|i)|nzph|o2im|op(ti|wv)|oran|owg1|p800|pan(a|d|t)|pdxg|pg(13|\-([1-8]|c))|phil|pire|pl(ay|uc)|pn\-2|po(ck|rt|se)|prox|psio|pt\-g|qa\-a|qc(07|12|21|32|60|\-[2-7]|i\-)|qtek|r380|r600|raks|rim9|ro(ve|zo)|s55\/|sa(ge|ma|mm|ms|ny|va)|sc(01|h\-|oo|p\-)|sdk\/|se(c(\-|0|1)|47|mc|nd|ri)|sgh\-|shar|sie(\-|m)|sk\-0|sl(45|id)|sm(al|ar|b3|it|t5)|so(ft|ny)|sp(01|h\-|v\-|v )|sy(01|mb)|t2(18|50)|t6(00|10|18)|ta(gt|lk)|tcl\-|tdg\-|tel(i|m)|tim\-|t\-mo|to(pl|sh)|ts(70|m\-|m3|m5)|tx\-9|up(\.b|g1|si)|utst|v400|v750|veri|vi(rg|te)|vk(40|5[0-3]|\-v)|vm40|voda|vulc|vx(52|53|60|61|70|80|81|83|85|98)|w3c(\-| )|webc|whit|wi(g |nc|nw)|wmlb|wonu|x700|yas\-|your|zeto|zte\-/i.test(a.substr(0, 4))) check = true;
-  })(global.navigator.userAgent || global.navigator.vendor || global.opera);
-  return check;
 };
-var applyCanvasStylesForMinimalRendering = function applyCanvasStylesForMinimalRendering(canvas) {
+
+const isImageBitmapSupported = global =>
+  !!(global.ImageBitmapRenderingContext &&
+     global.createImageBitmap);
+
+const applyCanvasStylesForMinimalRendering = canvas => {
   canvas.style.display = 'block';
   canvas.style.position = 'absolute';
   canvas.style.width = canvas.style.height = '1px';
@@ -1804,8 +2160,8 @@ var slicedToArray = function () {
 }();
 var MIN_TIMESTEP = 0.001;
 var MAX_TIMESTEP = 1;
-var base64 = function base64(mimeType, _base) {
-  return 'data:' + mimeType + ';base64,' + _base;
+var dataUri = function dataUri(mimeType, svg) {
+  return 'data:' + mimeType + ',' + encodeURIComponent(svg);
 };
 var lerp = function lerp(a, b, t) {
   return a + (b - a) * t;
@@ -3408,8 +3764,8 @@ function CardboardViewer(params) {
 }
 DeviceInfo.Viewers = Viewers;
 var format = 1;
-var last_updated = "2018-02-20T22:55:10Z";
-var devices = [{"type":"android","rules":[{"mdmh":"asus/*/Nexus 7/*"},{"ua":"Nexus 7"}],"dpi":[320.8,323],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"asus/*/ASUS_Z00AD/*"},{"ua":"ASUS_Z00AD"}],"dpi":[403,404.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel XL/*"},{"ua":"Pixel XL"}],"dpi":[537.9,533],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel/*"},{"ua":"Pixel"}],"dpi":[432.6,436.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"HTC/*/HTC6435LVW/*"},{"ua":"HTC6435LVW"}],"dpi":[449.7,443.3],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One XL/*"},{"ua":"HTC One XL"}],"dpi":[315.3,314.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"htc/*/Nexus 9/*"},{"ua":"Nexus 9"}],"dpi":289,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One M9/*"},{"ua":"HTC One M9"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One_M8/*"},{"ua":"HTC One_M8"}],"dpi":[449.7,447.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One/*"},{"ua":"HTC One"}],"dpi":472.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Huawei/*/Nexus 6P/*"},{"ua":"Nexus 6P"}],"dpi":[515.1,518],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LENOVO/*/Lenovo PB2-690Y/*"},{"ua":"Lenovo PB2-690Y"}],"dpi":[457.2,454.713],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 5X/*"},{"ua":"Nexus 5X"}],"dpi":[422,419.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGMS345/*"},{"ua":"LGMS345"}],"dpi":[221.7,219.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/LG-D800/*"},{"ua":"LG-D800"}],"dpi":[422,424.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/LG-D850/*"},{"ua":"LG-D850"}],"dpi":[537.9,541.9],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/VS985 4G/*"},{"ua":"VS985 4G"}],"dpi":[537.9,535.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 5/*"},{"ua":"Nexus 5 B"}],"dpi":[442.4,444.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 4/*"},{"ua":"Nexus 4"}],"dpi":[319.8,318.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LG-P769/*"},{"ua":"LG-P769"}],"dpi":[240.6,247.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGMS323/*"},{"ua":"LGMS323"}],"dpi":[206.6,204.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGLS996/*"},{"ua":"LGLS996"}],"dpi":[403.4,401.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/4560MMX/*"},{"ua":"4560MMX"}],"dpi":[240,219.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/A250/*"},{"ua":"Micromax A250"}],"dpi":[480,446.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/Micromax AQ4501/*"},{"ua":"Micromax AQ4501"}],"dpi":240,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/G5/*"},{"ua":"Moto G (5) Plus"}],"dpi":[403.4,403],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/DROID RAZR/*"},{"ua":"DROID RAZR"}],"dpi":[368.1,256.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT830C/*"},{"ua":"XT830C"}],"dpi":[254,255.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1021/*"},{"ua":"XT1021"}],"dpi":[254,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1023/*"},{"ua":"XT1023"}],"dpi":[254,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1028/*"},{"ua":"XT1028"}],"dpi":[326.6,327.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1034/*"},{"ua":"XT1034"}],"dpi":[326.6,328.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1053/*"},{"ua":"XT1053"}],"dpi":[315.3,316.1],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1562/*"},{"ua":"XT1562"}],"dpi":[403.4,402.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/Nexus 6/*"},{"ua":"Nexus 6 B"}],"dpi":[494.3,489.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1063/*"},{"ua":"XT1063"}],"dpi":[295,296.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1064/*"},{"ua":"XT1064"}],"dpi":[295,295.6],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1092/*"},{"ua":"XT1092"}],"dpi":[422,424.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1095/*"},{"ua":"XT1095"}],"dpi":[422,423.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/G4/*"},{"ua":"Moto G (4)"}],"dpi":401,"bw":4,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/A0001/*"},{"ua":"A0001"}],"dpi":[403.4,401],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE E1005/*"},{"ua":"ONE E1005"}],"dpi":[442.4,441.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE A2005/*"},{"ua":"ONE A2005"}],"dpi":[391.9,405.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONEPLUS A5000/*"},{"ua":"ONEPLUS A5000 "}],"dpi":[403.411,399.737],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE A5010/*"},{"ua":"ONEPLUS A5010"}],"dpi":[403,400],"bw":2,"ac":1000},{"type":"android","rules":[{"mdmh":"OPPO/*/X909/*"},{"ua":"X909"}],"dpi":[442.4,444.1],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9082/*"},{"ua":"GT-I9082"}],"dpi":[184.7,185.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G360P/*"},{"ua":"SM-G360P"}],"dpi":[196.7,205.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/Nexus S/*"},{"ua":"Nexus S"}],"dpi":[234.5,229.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300/*"},{"ua":"GT-I9300"}],"dpi":[304.8,303.9],"bw":5,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-T230NU/*"},{"ua":"SM-T230NU"}],"dpi":216,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SGH-T399/*"},{"ua":"SGH-T399"}],"dpi":[217.7,231.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SGH-M919/*"},{"ua":"SGH-M919"}],"dpi":[440.8,437.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N9005/*"},{"ua":"SM-N9005"}],"dpi":[386.4,387],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SAMSUNG-SM-N900A/*"},{"ua":"SAMSUNG-SM-N900A"}],"dpi":[386.4,387.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9500/*"},{"ua":"GT-I9500"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9505/*"},{"ua":"GT-I9505"}],"dpi":439.4,"bw":4,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G900F/*"},{"ua":"SM-G900F"}],"dpi":[415.6,431.6],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G900M/*"},{"ua":"SM-G900M"}],"dpi":[415.6,431.6],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G800F/*"},{"ua":"SM-G800F"}],"dpi":326.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G906S/*"},{"ua":"SM-G906S"}],"dpi":[562.7,572.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300/*"},{"ua":"GT-I9300"}],"dpi":[306.7,304.8],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-T535/*"},{"ua":"SM-T535"}],"dpi":[142.6,136.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920C/*"},{"ua":"SM-N920C"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920P/*"},{"ua":"SM-N920P"}],"dpi":[386.3655,390.144],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920W8/*"},{"ua":"SM-N920W8"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300I/*"},{"ua":"GT-I9300I"}],"dpi":[304.8,305.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9195/*"},{"ua":"GT-I9195"}],"dpi":[249.4,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SPH-L520/*"},{"ua":"SPH-L520"}],"dpi":[249.4,255.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SAMSUNG-SGH-I717/*"},{"ua":"SAMSUNG-SGH-I717"}],"dpi":285.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SPH-D710/*"},{"ua":"SPH-D710"}],"dpi":[217.7,204.2],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-N7100/*"},{"ua":"GT-N7100"}],"dpi":265.1,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SCH-I605/*"},{"ua":"SCH-I605"}],"dpi":265.1,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/Galaxy Nexus/*"},{"ua":"Galaxy Nexus"}],"dpi":[315.3,314.2],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N910H/*"},{"ua":"SM-N910H"}],"dpi":[515.1,518],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N910C/*"},{"ua":"SM-N910C"}],"dpi":[515.2,520.2],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G130M/*"},{"ua":"SM-G130M"}],"dpi":[165.9,164.8],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G928I/*"},{"ua":"SM-G928I"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G920F/*"},{"ua":"SM-G920F"}],"dpi":580.6,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G920P/*"},{"ua":"SM-G920P"}],"dpi":[522.5,577],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G925F/*"},{"ua":"SM-G925F"}],"dpi":580.6,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G925V/*"},{"ua":"SM-G925V"}],"dpi":[522.5,576.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G930F/*"},{"ua":"SM-G930F"}],"dpi":576.6,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G935F/*"},{"ua":"SM-G935F"}],"dpi":533,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G950F/*"},{"ua":"SM-G950F"}],"dpi":[562.707,565.293],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G955U/*"},{"ua":"SM-G955U"}],"dpi":[522.514,525.762],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"Sony/*/C6903/*"},{"ua":"C6903"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"Sony/*/D6653/*"},{"ua":"D6653"}],"dpi":[428.6,427.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/E6653/*"},{"ua":"E6653"}],"dpi":[428.6,425.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/E6853/*"},{"ua":"E6853"}],"dpi":[403.4,401.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/SGP321/*"},{"ua":"SGP321"}],"dpi":[224.7,224.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"TCT/*/ALCATEL ONE TOUCH Fierce/*"},{"ua":"ALCATEL ONE TOUCH Fierce"}],"dpi":[240,247.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"THL/*/thl 5000/*"},{"ua":"thl 5000"}],"dpi":[480,443.3],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Fly/*/IQ4412/*"},{"ua":"IQ4412"}],"dpi":307.9,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"ZTE/*/ZTE Blade L2/*"},{"ua":"ZTE Blade L2"}],"dpi":240,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"BENEVE/*/VR518/*"},{"ua":"VR518"}],"dpi":480,"bw":3,"ac":500},{"type":"ios","rules":[{"res":[640,960]}],"dpi":[325.1,328.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[640,1136]}],"dpi":[317.1,320.2],"bw":3,"ac":1000},{"type":"ios","rules":[{"res":[750,1334]}],"dpi":326.4,"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1242,2208]}],"dpi":[453.6,458.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1125,2001]}],"dpi":[410.9,415.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1125,2436]}],"dpi":458,"bw":4,"ac":1000}];
+var last_updated = "2018-12-10T17:01:42Z";
+var devices = [{"type":"android","rules":[{"mdmh":"asus/*/Nexus 7/*"},{"ua":"Nexus 7"}],"dpi":[320.8,323],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"asus/*/ASUS_Z00AD/*"},{"ua":"ASUS_Z00AD"}],"dpi":[403,404.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel 2 XL/*"},{"ua":"Pixel 2 XL"}],"dpi":537.9,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel 3 XL/*"},{"ua":"Pixel 3 XL"}],"dpi":[558.5,553.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel XL/*"},{"ua":"Pixel XL"}],"dpi":[537.9,533],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel 3/*"},{"ua":"Pixel 3"}],"dpi":442.4,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Google/*/Pixel 2/*"},{"ua":"Pixel 2"}],"dpi":441,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"Google/*/Pixel/*"},{"ua":"Pixel"}],"dpi":[432.6,436.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"HTC/*/HTC6435LVW/*"},{"ua":"HTC6435LVW"}],"dpi":[449.7,443.3],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One XL/*"},{"ua":"HTC One XL"}],"dpi":[315.3,314.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"htc/*/Nexus 9/*"},{"ua":"Nexus 9"}],"dpi":289,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One M9/*"},{"ua":"HTC One M9"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One_M8/*"},{"ua":"HTC One_M8"}],"dpi":[449.7,447.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"HTC/*/HTC One/*"},{"ua":"HTC One"}],"dpi":472.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Huawei/*/Nexus 6P/*"},{"ua":"Nexus 6P"}],"dpi":[515.1,518],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Huawei/*/BLN-L24/*"},{"ua":"HONORBLN-L24"}],"dpi":480,"bw":4,"ac":500},{"type":"android","rules":[{"mdmh":"Huawei/*/BKL-L09/*"},{"ua":"BKL-L09"}],"dpi":403,"bw":3.47,"ac":500},{"type":"android","rules":[{"mdmh":"LENOVO/*/Lenovo PB2-690Y/*"},{"ua":"Lenovo PB2-690Y"}],"dpi":[457.2,454.713],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 5X/*"},{"ua":"Nexus 5X"}],"dpi":[422,419.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGMS345/*"},{"ua":"LGMS345"}],"dpi":[221.7,219.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/LG-D800/*"},{"ua":"LG-D800"}],"dpi":[422,424.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/LG-D850/*"},{"ua":"LG-D850"}],"dpi":[537.9,541.9],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"LGE/*/VS985 4G/*"},{"ua":"VS985 4G"}],"dpi":[537.9,535.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 5/*"},{"ua":"Nexus 5 B"}],"dpi":[442.4,444.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/Nexus 4/*"},{"ua":"Nexus 4"}],"dpi":[319.8,318.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LG-P769/*"},{"ua":"LG-P769"}],"dpi":[240.6,247.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGMS323/*"},{"ua":"LGMS323"}],"dpi":[206.6,204.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"LGE/*/LGLS996/*"},{"ua":"LGLS996"}],"dpi":[403.4,401.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/4560MMX/*"},{"ua":"4560MMX"}],"dpi":[240,219.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/A250/*"},{"ua":"Micromax A250"}],"dpi":[480,446.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Micromax/*/Micromax AQ4501/*"},{"ua":"Micromax AQ4501"}],"dpi":240,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/G5/*"},{"ua":"Moto G (5) Plus"}],"dpi":[403.4,403],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/DROID RAZR/*"},{"ua":"DROID RAZR"}],"dpi":[368.1,256.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT830C/*"},{"ua":"XT830C"}],"dpi":[254,255.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1021/*"},{"ua":"XT1021"}],"dpi":[254,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1023/*"},{"ua":"XT1023"}],"dpi":[254,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1028/*"},{"ua":"XT1028"}],"dpi":[326.6,327.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1034/*"},{"ua":"XT1034"}],"dpi":[326.6,328.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1053/*"},{"ua":"XT1053"}],"dpi":[315.3,316.1],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1562/*"},{"ua":"XT1562"}],"dpi":[403.4,402.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/Nexus 6/*"},{"ua":"Nexus 6 B"}],"dpi":[494.3,489.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1063/*"},{"ua":"XT1063"}],"dpi":[295,296.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/XT1064/*"},{"ua":"XT1064"}],"dpi":[295,295.6],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1092/*"},{"ua":"XT1092"}],"dpi":[422,424.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"motorola/*/XT1095/*"},{"ua":"XT1095"}],"dpi":[422,423.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"motorola/*/G4/*"},{"ua":"Moto G (4)"}],"dpi":401,"bw":4,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/A0001/*"},{"ua":"A0001"}],"dpi":[403.4,401],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE E1005/*"},{"ua":"ONE E1005"}],"dpi":[442.4,441.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE A2005/*"},{"ua":"ONE A2005"}],"dpi":[391.9,405.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONEPLUS A5000/*"},{"ua":"ONEPLUS A5000 "}],"dpi":[403.411,399.737],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"OnePlus/*/ONE A5010/*"},{"ua":"ONEPLUS A5010"}],"dpi":[403,400],"bw":2,"ac":1000},{"type":"android","rules":[{"mdmh":"OPPO/*/X909/*"},{"ua":"X909"}],"dpi":[442.4,444.1],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9082/*"},{"ua":"GT-I9082"}],"dpi":[184.7,185.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G360P/*"},{"ua":"SM-G360P"}],"dpi":[196.7,205.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/Nexus S/*"},{"ua":"Nexus S"}],"dpi":[234.5,229.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300/*"},{"ua":"GT-I9300"}],"dpi":[304.8,303.9],"bw":5,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-T230NU/*"},{"ua":"SM-T230NU"}],"dpi":216,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SGH-T399/*"},{"ua":"SGH-T399"}],"dpi":[217.7,231.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SGH-M919/*"},{"ua":"SGH-M919"}],"dpi":[440.8,437.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N9005/*"},{"ua":"SM-N9005"}],"dpi":[386.4,387],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SAMSUNG-SM-N900A/*"},{"ua":"SAMSUNG-SM-N900A"}],"dpi":[386.4,387.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9500/*"},{"ua":"GT-I9500"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9505/*"},{"ua":"GT-I9505"}],"dpi":439.4,"bw":4,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G900F/*"},{"ua":"SM-G900F"}],"dpi":[415.6,431.6],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G900M/*"},{"ua":"SM-G900M"}],"dpi":[415.6,431.6],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G800F/*"},{"ua":"SM-G800F"}],"dpi":326.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G906S/*"},{"ua":"SM-G906S"}],"dpi":[562.7,572.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300/*"},{"ua":"GT-I9300"}],"dpi":[306.7,304.8],"bw":5,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-T535/*"},{"ua":"SM-T535"}],"dpi":[142.6,136.4],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920C/*"},{"ua":"SM-N920C"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920P/*"},{"ua":"SM-N920P"}],"dpi":[386.3655,390.144],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N920W8/*"},{"ua":"SM-N920W8"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9300I/*"},{"ua":"GT-I9300I"}],"dpi":[304.8,305.8],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-I9195/*"},{"ua":"GT-I9195"}],"dpi":[249.4,256.7],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SPH-L520/*"},{"ua":"SPH-L520"}],"dpi":[249.4,255.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SAMSUNG-SGH-I717/*"},{"ua":"SAMSUNG-SGH-I717"}],"dpi":285.8,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SPH-D710/*"},{"ua":"SPH-D710"}],"dpi":[217.7,204.2],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/GT-N7100/*"},{"ua":"GT-N7100"}],"dpi":265.1,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SCH-I605/*"},{"ua":"SCH-I605"}],"dpi":265.1,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/Galaxy Nexus/*"},{"ua":"Galaxy Nexus"}],"dpi":[315.3,314.2],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N910H/*"},{"ua":"SM-N910H"}],"dpi":[515.1,518],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-N910C/*"},{"ua":"SM-N910C"}],"dpi":[515.2,520.2],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G130M/*"},{"ua":"SM-G130M"}],"dpi":[165.9,164.8],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G928I/*"},{"ua":"SM-G928I"}],"dpi":[515.1,518.4],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G920F/*"},{"ua":"SM-G920F"}],"dpi":580.6,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G920P/*"},{"ua":"SM-G920P"}],"dpi":[522.5,577],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G925F/*"},{"ua":"SM-G925F"}],"dpi":580.6,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G925V/*"},{"ua":"SM-G925V"}],"dpi":[522.5,576.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G930F/*"},{"ua":"SM-G930F"}],"dpi":576.6,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G935F/*"},{"ua":"SM-G935F"}],"dpi":533,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G950F/*"},{"ua":"SM-G950F"}],"dpi":[562.707,565.293],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G955U/*"},{"ua":"SM-G955U"}],"dpi":[522.514,525.762],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"samsung/*/SM-G955F/*"},{"ua":"SM-G955F"}],"dpi":[522.514,525.762],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"Sony/*/C6903/*"},{"ua":"C6903"}],"dpi":[442.5,443.3],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"Sony/*/D6653/*"},{"ua":"D6653"}],"dpi":[428.6,427.6],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/E6653/*"},{"ua":"E6653"}],"dpi":[428.6,425.7],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/E6853/*"},{"ua":"E6853"}],"dpi":[403.4,401.9],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Sony/*/SGP321/*"},{"ua":"SGP321"}],"dpi":[224.7,224.1],"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"TCT/*/ALCATEL ONE TOUCH Fierce/*"},{"ua":"ALCATEL ONE TOUCH Fierce"}],"dpi":[240,247.5],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"THL/*/thl 5000/*"},{"ua":"thl 5000"}],"dpi":[480,443.3],"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"Fly/*/IQ4412/*"},{"ua":"IQ4412"}],"dpi":307.9,"bw":3,"ac":1000},{"type":"android","rules":[{"mdmh":"ZTE/*/ZTE Blade L2/*"},{"ua":"ZTE Blade L2"}],"dpi":240,"bw":3,"ac":500},{"type":"android","rules":[{"mdmh":"BENEVE/*/VR518/*"},{"ua":"VR518"}],"dpi":480,"bw":3,"ac":500},{"type":"ios","rules":[{"res":[640,960]}],"dpi":[325.1,328.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[640,1136]}],"dpi":[317.1,320.2],"bw":3,"ac":1000},{"type":"ios","rules":[{"res":[750,1334]}],"dpi":326.4,"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1242,2208]}],"dpi":[453.6,458.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1125,2001]}],"dpi":[410.9,415.4],"bw":4,"ac":1000},{"type":"ios","rules":[{"res":[1125,2436]}],"dpi":458,"bw":4,"ac":1000}];
 var DPDB_CACHE = {
 	format: format,
 	last_updated: last_updated,
@@ -3484,7 +3840,7 @@ Dpdb.prototype.calcDeviceParams_ = function () {
     var matched = false;
     for (var j = 0; j < device.rules.length; j++) {
       var rule = device.rules[j];
-      if (this.matchRule_(rule, userAgent, width, height)) {
+      if (this.ruleMatches_(rule, userAgent, width, height)) {
         matched = true;
         break;
       }
@@ -3497,8 +3853,9 @@ Dpdb.prototype.calcDeviceParams_ = function () {
   console.warn('No DPDB device match.');
   return null;
 };
-Dpdb.prototype.matchRule_ = function (rule, ua, screenWidth, screenHeight) {
+Dpdb.prototype.ruleMatches_ = function (rule, ua, screenWidth, screenHeight) {
   if (!rule.ua && !rule.res) return false;
+  if (rule.ua && rule.ua.substring(0, 2) === 'SM') rule.ua = rule.ua.substring(0, 7);
   if (rule.ua && ua.indexOf(rule.ua) < 0) return false;
   if (rule.res) {
     if (!rule.res[0] || !rule.res[1]) return false;
@@ -3834,18 +4191,6 @@ FusionPoseSensor.prototype.stop = function () {
 var SENSOR_FREQUENCY = 60;
 var X_AXIS = new Vector3(1, 0, 0);
 var Z_AXIS = new Vector3(0, 0, 1);
-var orientation = {};
-if (screen.orientation) {
-  orientation = screen.orientation;
-} else if (screen.msOrientation) {
-  orientation = screen.msOrientation;
-} else {
-  Object.defineProperty(orientation, 'angle', {
-    get: function get$$1() {
-      return window.orientation || 0;
-    }
-  });
-}
 var SENSOR_TO_VR = new Quaternion();
 SENSOR_TO_VR.setFromAxisAngle(X_AXIS, -Math.PI / 2);
 SENSOR_TO_VR.multiply(new Quaternion().setFromAxisAngle(Z_AXIS, Math.PI / 2));
@@ -3859,12 +4204,9 @@ var PoseSensor = function () {
     this.api = null;
     this.errors = [];
     this._sensorQ = new Quaternion();
-    this._worldToScreenQ = new Quaternion();
     this._outQ = new Quaternion();
     this._onSensorRead = this._onSensorRead.bind(this);
     this._onSensorError = this._onSensorError.bind(this);
-    this._onOrientationChange = this._onOrientationChange.bind(this);
-    this._onOrientationChange();
     this.init();
   }
   createClass(PoseSensor, [{
@@ -3872,7 +4214,10 @@ var PoseSensor = function () {
     value: function init() {
       var sensor = null;
       try {
-        sensor = new RelativeOrientationSensor({ frequency: SENSOR_FREQUENCY });
+        sensor = new RelativeOrientationSensor({
+          frequency: SENSOR_FREQUENCY,
+          referenceFrame: 'screen'
+        });
         sensor.addEventListener('error', this._onSensorError);
       } catch (error) {
         this.errors.push(error);
@@ -3892,7 +4237,6 @@ var PoseSensor = function () {
         this.sensor.addEventListener('reading', this._onSensorRead);
         this.sensor.start();
       }
-      window.addEventListener('orientationchange', this._onOrientationChange);
     }
   }, {
     key: 'useDeviceMotion',
@@ -3921,7 +4265,6 @@ var PoseSensor = function () {
       var out = this._outQ;
       out.copy(SENSOR_TO_VR);
       out.multiply(this._sensorQ);
-      out.multiply(this._worldToScreenQ);
       if (this.config.YAW_ONLY) {
         out.x = out.z = 0;
         out.normalize();
@@ -3948,16 +4291,10 @@ var PoseSensor = function () {
   }, {
     key: '_onSensorRead',
     value: function _onSensorRead() {}
-  }, {
-    key: '_onOrientationChange',
-    value: function _onOrientationChange() {
-      var angle = -orientation.angle * Math.PI / 180;
-      this._worldToScreenQ.setFromAxisAngle(Z_AXIS, angle);
-    }
   }]);
   return PoseSensor;
 }();
-var rotateInstructionsAsset = '<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg width="198px" height="240px" viewBox="0 0 198 240" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:sketch="http://www.bohemiancoding.com/sketch/ns">
    <!-- Generator: Sketch 3.3.3 (12081) - http://www.bohemiancoding.com/sketch -->
    <title>transition</title>
    <desc>Created with Sketch.</desc>
    <defs></defs>
    <g id="Page-1" stroke="none" stroke-width="1" fill="none" fill-rule="evenodd" sketch:type="MSPage">
        <g id="transition" sketch:type="MSArtboardGroup">
            <g id="Imported-Layers-Copy-4-+-Imported-Layers-Copy-+-Imported-Layers-Copy-2-Copy" sketch:type="MSLayerGroup">
                <g id="Imported-Layers-Copy-4" transform="translate(0.000000, 107.000000)" sketch:type="MSShapeGroup">
                    <path d="M149.625,2.527 C149.625,2.527 155.805,6.096 156.362,6.418 L156.362,7.304 C156.362,7.481 156.375,7.664 156.4,7.853 C156.41,7.934 156.42,8.015 156.427,8.095 C156.567,9.51 157.401,11.093 158.532,12.094 L164.252,17.156 L164.333,17.066 C164.333,17.066 168.715,14.536 169.568,14.042 C171.025,14.883 195.538,29.035 195.538,29.035 L195.538,83.036 C195.538,83.807 195.152,84.253 194.59,84.253 C194.357,84.253 194.095,84.177 193.818,84.017 L169.851,70.179 L169.837,70.203 L142.515,85.978 L141.665,84.655 C136.934,83.126 131.917,81.915 126.714,81.045 C126.709,81.06 126.707,81.069 126.707,81.069 L121.64,98.03 L113.749,102.586 L113.712,102.523 L113.712,130.113 C113.712,130.885 113.326,131.33 112.764,131.33 C112.532,131.33 112.269,131.254 111.992,131.094 L69.519,106.572 C68.569,106.023 67.799,104.695 67.799,103.605 L67.799,102.57 L67.778,102.617 C67.27,102.393 66.648,102.249 65.962,102.218 C65.875,102.214 65.788,102.212 65.701,102.212 C65.606,102.212 65.511,102.215 65.416,102.219 C65.195,102.229 64.974,102.235 64.754,102.235 C64.331,102.235 63.911,102.216 63.498,102.178 C61.843,102.025 60.298,101.578 59.094,100.882 L12.518,73.992 L12.523,74.004 L2.245,55.254 C1.244,53.427 2.004,51.038 3.943,49.918 L59.954,17.573 C60.626,17.185 61.35,17.001 62.053,17.001 C63.379,17.001 64.625,17.66 65.28,18.854 L65.285,18.851 L65.512,19.264 L65.506,19.268 C65.909,20.003 66.405,20.68 66.983,21.286 L67.26,21.556 C69.174,23.406 71.728,24.357 74.373,24.357 C76.322,24.357 78.321,23.84 80.148,22.785 C80.161,22.785 87.467,18.566 87.467,18.566 C88.139,18.178 88.863,17.994 89.566,17.994 C90.892,17.994 92.138,18.652 92.792,19.847 L96.042,25.775 L96.064,25.757 L102.849,29.674 L102.744,29.492 L149.625,2.527 M149.625,0.892 C149.343,0.892 149.062,0.965 148.81,1.11 L102.641,27.666 L97.231,24.542 L94.226,19.061 C93.313,17.394 91.527,16.359 89.566,16.358 C88.555,16.358 87.546,16.632 86.649,17.15 C83.878,18.75 79.687,21.169 79.374,21.345 C79.359,21.353 79.345,21.361 79.33,21.369 C77.798,22.254 76.084,22.722 74.373,22.722 C72.081,22.722 69.959,21.89 68.397,20.38 L68.145,20.135 C67.706,19.672 67.323,19.156 67.006,18.601 C66.988,18.559 66.968,18.519 66.946,18.479 L66.719,18.065 C66.69,18.012 66.658,17.96 66.624,17.911 C65.686,16.337 63.951,15.366 62.053,15.366 C61.042,15.366 60.033,15.64 59.136,16.158 L3.125,48.502 C0.426,50.061 -0.613,53.442 0.811,56.04 L11.089,74.79 C11.266,75.113 11.537,75.353 11.85,75.494 L58.276,102.298 C59.679,103.108 61.433,103.63 63.348,103.806 C63.812,103.848 64.285,103.87 64.754,103.87 C65,103.87 65.249,103.864 65.494,103.852 C65.563,103.849 65.632,103.847 65.701,103.847 C65.764,103.847 65.828,103.849 65.89,103.852 C65.986,103.856 66.08,103.863 66.173,103.874 C66.282,105.467 67.332,107.197 68.702,107.988 L111.174,132.51 C111.698,132.812 112.232,132.965 112.764,132.965 C114.261,132.965 115.347,131.765 115.347,130.113 L115.347,103.551 L122.458,99.446 C122.819,99.237 123.087,98.898 123.207,98.498 L127.865,82.905 C132.279,83.702 136.557,84.753 140.607,86.033 L141.14,86.862 C141.451,87.346 141.977,87.613 142.516,87.613 C142.794,87.613 143.076,87.542 143.333,87.393 L169.865,72.076 L193,85.433 C193.523,85.735 194.058,85.888 194.59,85.888 C196.087,85.888 197.173,84.689 197.173,83.036 L197.173,29.035 C197.173,28.451 196.861,27.911 196.355,27.619 C196.355,27.619 171.843,13.467 170.385,12.626 C170.132,12.48 169.85,12.407 169.568,12.407 C169.285,12.407 169.002,12.481 168.749,12.627 C168.143,12.978 165.756,14.357 164.424,15.125 L159.615,10.87 C158.796,10.145 158.154,8.937 158.054,7.934 C158.045,7.837 158.034,7.739 158.021,7.64 C158.005,7.523 157.998,7.41 157.998,7.304 L157.998,6.418 C157.998,5.834 157.686,5.295 157.181,5.002 C156.624,4.68 150.442,1.111 150.442,1.111 C150.189,0.965 149.907,0.892 149.625,0.892" id="Fill-1" fill="#455A64"></path>
                    <path d="M96.027,25.636 L142.603,52.527 C143.807,53.222 144.582,54.114 144.845,55.068 L144.835,55.075 L63.461,102.057 L63.46,102.057 C61.806,101.905 60.261,101.457 59.057,100.762 L12.481,73.871 L96.027,25.636" id="Fill-2" fill="#FAFAFA"></path>
                    <path d="M63.461,102.174 C63.453,102.174 63.446,102.174 63.439,102.172 C61.746,102.016 60.211,101.563 58.998,100.863 L12.422,73.973 C12.386,73.952 12.364,73.914 12.364,73.871 C12.364,73.83 12.386,73.791 12.422,73.77 L95.968,25.535 C96.004,25.514 96.049,25.514 96.085,25.535 L142.661,52.426 C143.888,53.134 144.682,54.038 144.957,55.037 C144.97,55.083 144.953,55.133 144.915,55.161 C144.911,55.165 144.898,55.174 144.894,55.177 L63.519,102.158 C63.501,102.169 63.481,102.174 63.461,102.174 L63.461,102.174 Z M12.714,73.871 L59.115,100.661 C60.293,101.341 61.786,101.782 63.435,101.937 L144.707,55.015 C144.428,54.108 143.682,53.285 142.544,52.628 L96.027,25.771 L12.714,73.871 L12.714,73.871 Z" id="Fill-3" fill="#607D8B"></path>
                    <path d="M148.327,58.471 C148.145,58.48 147.962,58.48 147.781,58.472 C145.887,58.389 144.479,57.434 144.636,56.34 C144.689,55.967 144.664,55.597 144.564,55.235 L63.461,102.057 C64.089,102.115 64.733,102.13 65.379,102.099 C65.561,102.09 65.743,102.09 65.925,102.098 C67.819,102.181 69.227,103.136 69.07,104.23 L148.327,58.471" id="Fill-4" fill="#FFFFFF"></path>
                    <path d="M69.07,104.347 C69.048,104.347 69.025,104.34 69.005,104.327 C68.968,104.301 68.948,104.257 68.955,104.213 C69,103.896 68.898,103.576 68.658,103.288 C68.153,102.678 67.103,102.266 65.92,102.214 C65.742,102.206 65.563,102.207 65.385,102.215 C64.742,102.246 64.087,102.232 63.45,102.174 C63.399,102.169 63.358,102.132 63.347,102.082 C63.336,102.033 63.358,101.981 63.402,101.956 L144.506,55.134 C144.537,55.116 144.575,55.113 144.609,55.127 C144.642,55.141 144.668,55.17 144.677,55.204 C144.781,55.585 144.806,55.972 144.751,56.357 C144.706,56.673 144.808,56.994 145.047,57.282 C145.553,57.892 146.602,58.303 147.786,58.355 C147.964,58.363 148.143,58.363 148.321,58.354 C148.377,58.352 148.424,58.387 148.439,58.438 C148.454,58.49 148.432,58.545 148.385,58.572 L69.129,104.331 C69.111,104.342 69.09,104.347 69.07,104.347 L69.07,104.347 Z M65.665,101.975 C65.754,101.975 65.842,101.977 65.93,101.981 C67.196,102.037 68.283,102.469 68.838,103.139 C69.065,103.413 69.188,103.714 69.198,104.021 L147.883,58.592 C147.847,58.592 147.811,58.591 147.776,58.589 C146.509,58.533 145.422,58.1 144.867,57.431 C144.585,57.091 144.465,56.707 144.52,56.324 C144.563,56.021 144.552,55.716 144.488,55.414 L63.846,101.97 C64.353,102.002 64.867,102.006 65.374,101.982 C65.471,101.977 65.568,101.975 65.665,101.975 L65.665,101.975 Z" id="Fill-5" fill="#607D8B"></path>
                    <path d="M2.208,55.134 C1.207,53.307 1.967,50.917 3.906,49.797 L59.917,17.453 C61.856,16.333 64.241,16.907 65.243,18.734 L65.475,19.144 C65.872,19.882 66.368,20.56 66.945,21.165 L67.223,21.435 C70.548,24.649 75.806,25.151 80.111,22.665 L87.43,18.445 C89.37,17.326 91.754,17.899 92.755,19.727 L96.005,25.655 L12.486,73.884 L2.208,55.134 Z" id="Fill-6" fill="#FAFAFA"></path>
                    <path d="M12.486,74.001 C12.476,74.001 12.465,73.999 12.455,73.996 C12.424,73.988 12.399,73.967 12.384,73.94 L2.106,55.19 C1.075,53.31 1.857,50.845 3.848,49.696 L59.858,17.352 C60.525,16.967 61.271,16.764 62.016,16.764 C63.431,16.764 64.666,17.466 65.327,18.646 C65.337,18.654 65.345,18.663 65.351,18.674 L65.578,19.088 C65.584,19.1 65.589,19.112 65.591,19.126 C65.985,19.838 66.469,20.497 67.03,21.085 L67.305,21.351 C69.151,23.137 71.649,24.12 74.336,24.12 C76.313,24.12 78.29,23.582 80.053,22.563 C80.064,22.557 80.076,22.553 80.088,22.55 L87.372,18.344 C88.038,17.959 88.784,17.756 89.529,17.756 C90.956,17.756 92.201,18.472 92.858,19.67 L96.107,25.599 C96.138,25.654 96.118,25.724 96.063,25.756 L12.545,73.985 C12.526,73.996 12.506,74.001 12.486,74.001 L12.486,74.001 Z M62.016,16.997 C61.312,16.997 60.606,17.19 59.975,17.554 L3.965,49.899 C2.083,50.985 1.341,53.308 2.31,55.078 L12.531,73.723 L95.848,25.611 L92.653,19.782 C92.038,18.66 90.87,17.99 89.529,17.99 C88.825,17.99 88.119,18.182 87.489,18.547 L80.172,22.772 C80.161,22.778 80.149,22.782 80.137,22.785 C78.346,23.811 76.341,24.354 74.336,24.354 C71.588,24.354 69.033,23.347 67.142,21.519 L66.864,21.249 C66.277,20.634 65.774,19.947 65.367,19.203 C65.36,19.192 65.356,19.179 65.354,19.166 L65.163,18.819 C65.154,18.811 65.146,18.801 65.14,18.79 C64.525,17.667 63.357,16.997 62.016,16.997 L62.016,16.997 Z" id="Fill-7" fill="#607D8B"></path>
                    <path d="M42.434,48.808 L42.434,48.808 C39.924,48.807 37.737,47.55 36.582,45.443 C34.771,42.139 36.144,37.809 39.641,35.789 L51.932,28.691 C53.103,28.015 54.413,27.658 55.721,27.658 C58.231,27.658 60.418,28.916 61.573,31.023 C63.384,34.327 62.012,38.657 58.514,40.677 L46.223,47.775 C45.053,48.45 43.742,48.808 42.434,48.808 L42.434,48.808 Z M55.721,28.125 C54.495,28.125 53.265,28.461 52.166,29.096 L39.875,36.194 C36.596,38.087 35.302,42.136 36.992,45.218 C38.063,47.173 40.098,48.34 42.434,48.34 C43.661,48.34 44.89,48.005 45.99,47.37 L58.281,40.272 C61.56,38.379 62.853,34.33 61.164,31.248 C60.092,29.293 58.058,28.125 55.721,28.125 L55.721,28.125 Z" id="Fill-8" fill="#607D8B"></path>
                    <path d="M149.588,2.407 C149.588,2.407 155.768,5.975 156.325,6.297 L156.325,7.184 C156.325,7.36 156.338,7.544 156.362,7.733 C156.373,7.814 156.382,7.894 156.39,7.975 C156.53,9.39 157.363,10.973 158.495,11.974 L165.891,18.519 C166.068,18.675 166.249,18.814 166.432,18.934 C168.011,19.974 169.382,19.4 169.494,17.652 C169.543,16.868 169.551,16.057 169.517,15.223 L169.514,15.063 L169.514,13.912 C170.78,14.642 195.501,28.915 195.501,28.915 L195.501,82.915 C195.501,84.005 194.731,84.445 193.781,83.897 L151.308,59.374 C150.358,58.826 149.588,57.497 149.588,56.408 L149.588,22.375" id="Fill-9" fill="#FAFAFA"></path>
                    <path d="M194.553,84.25 C194.296,84.25 194.013,84.165 193.722,83.997 L151.25,59.476 C150.269,58.909 149.471,57.533 149.471,56.408 L149.471,22.375 L149.705,22.375 L149.705,56.408 C149.705,57.459 150.45,58.744 151.366,59.274 L193.839,83.795 C194.263,84.04 194.655,84.083 194.942,83.917 C195.227,83.753 195.384,83.397 195.384,82.915 L195.384,28.982 C194.102,28.242 172.104,15.542 169.631,14.114 L169.634,15.22 C169.668,16.052 169.66,16.874 169.61,17.659 C169.556,18.503 169.214,19.123 168.647,19.405 C168.028,19.714 167.197,19.578 166.367,19.032 C166.181,18.909 165.995,18.766 165.814,18.606 L158.417,12.062 C157.259,11.036 156.418,9.437 156.274,7.986 C156.266,7.907 156.257,7.827 156.247,7.748 C156.221,7.555 156.209,7.365 156.209,7.184 L156.209,6.364 C155.375,5.883 149.529,2.508 149.529,2.508 L149.646,2.306 C149.646,2.306 155.827,5.874 156.384,6.196 L156.442,6.23 L156.442,7.184 C156.442,7.355 156.454,7.535 156.478,7.717 C156.489,7.8 156.499,7.882 156.507,7.963 C156.645,9.358 157.455,10.898 158.572,11.886 L165.969,18.431 C166.142,18.584 166.319,18.72 166.496,18.837 C167.254,19.336 168,19.467 168.543,19.196 C169.033,18.953 169.329,18.401 169.377,17.645 C169.427,16.867 169.434,16.054 169.401,15.228 L169.397,15.065 L169.397,13.71 L169.572,13.81 C170.839,14.541 195.559,28.814 195.559,28.814 L195.618,28.847 L195.618,82.915 C195.618,83.484 195.42,83.911 195.059,84.119 C194.908,84.206 194.737,84.25 194.553,84.25" id="Fill-10" fill="#607D8B"></path>
                    <path d="M145.685,56.161 L169.8,70.083 L143.822,85.081 L142.36,84.774 C135.826,82.604 128.732,81.046 121.341,80.158 C116.976,79.634 112.678,81.254 111.743,83.778 C111.506,84.414 111.503,85.071 111.732,85.706 C113.27,89.973 115.968,94.069 119.727,97.841 L120.259,98.686 C120.26,98.685 94.282,113.683 94.282,113.683 L70.167,99.761 L145.685,56.161" id="Fill-11" fill="#FFFFFF"></path>
                    <path d="M94.282,113.818 L94.223,113.785 L69.933,99.761 L70.108,99.66 L145.685,56.026 L145.743,56.059 L170.033,70.083 L143.842,85.205 L143.797,85.195 C143.772,85.19 142.336,84.888 142.336,84.888 C135.787,82.714 128.723,81.163 121.327,80.274 C120.788,80.209 120.236,80.177 119.689,80.177 C115.931,80.177 112.635,81.708 111.852,83.819 C111.624,84.432 111.621,85.053 111.842,85.667 C113.377,89.925 116.058,93.993 119.81,97.758 L119.826,97.779 L120.352,98.614 C120.354,98.617 120.356,98.62 120.358,98.624 L120.422,98.726 L120.317,98.787 C120.264,98.818 94.599,113.635 94.34,113.785 L94.282,113.818 L94.282,113.818 Z M70.401,99.761 L94.282,113.549 L119.084,99.229 C119.63,98.914 119.93,98.74 120.101,98.654 L119.635,97.914 C115.864,94.127 113.168,90.033 111.622,85.746 C111.382,85.079 111.386,84.404 111.633,83.738 C112.448,81.539 115.836,79.943 119.689,79.943 C120.246,79.943 120.806,79.976 121.355,80.042 C128.767,80.933 135.846,82.487 142.396,84.663 C143.232,84.838 143.611,84.917 143.786,84.967 L169.566,70.083 L145.685,56.295 L70.401,99.761 L70.401,99.761 Z" id="Fill-12" fill="#607D8B"></path>
                    <path d="M167.23,18.979 L167.23,69.85 L139.909,85.623 L133.448,71.456 C132.538,69.46 130.02,69.718 127.824,72.03 C126.769,73.14 125.931,74.585 125.494,76.048 L119.034,97.676 L91.712,113.45 L91.712,62.579 L167.23,18.979" id="Fill-13" fill="#FFFFFF"></path>
                    <path d="M91.712,113.567 C91.692,113.567 91.672,113.561 91.653,113.551 C91.618,113.53 91.595,113.492 91.595,113.45 L91.595,62.579 C91.595,62.537 91.618,62.499 91.653,62.478 L167.172,18.878 C167.208,18.857 167.252,18.857 167.288,18.878 C167.324,18.899 167.347,18.937 167.347,18.979 L167.347,69.85 C167.347,69.891 167.324,69.93 167.288,69.95 L139.967,85.725 C139.939,85.741 139.905,85.745 139.873,85.735 C139.842,85.725 139.816,85.702 139.802,85.672 L133.342,71.504 C132.967,70.682 132.28,70.229 131.408,70.229 C130.319,70.229 129.044,70.915 127.908,72.11 C126.874,73.2 126.034,74.647 125.606,76.082 L119.146,97.709 C119.137,97.738 119.118,97.762 119.092,97.777 L91.77,113.551 C91.752,113.561 91.732,113.567 91.712,113.567 L91.712,113.567 Z M91.829,62.647 L91.829,113.248 L118.935,97.598 L125.382,76.015 C125.827,74.525 126.664,73.081 127.739,71.95 C128.919,70.708 130.256,69.996 131.408,69.996 C132.377,69.996 133.139,70.497 133.554,71.407 L139.961,85.458 L167.113,69.782 L167.113,19.181 L91.829,62.647 L91.829,62.647 Z" id="Fill-14" fill="#607D8B"></path>
                    <path d="M168.543,19.213 L168.543,70.083 L141.221,85.857 L134.761,71.689 C133.851,69.694 131.333,69.951 129.137,72.263 C128.082,73.374 127.244,74.819 126.807,76.282 L120.346,97.909 L93.025,113.683 L93.025,62.813 L168.543,19.213" id="Fill-15" fill="#FFFFFF"></path>
                    <path d="M93.025,113.8 C93.005,113.8 92.984,113.795 92.966,113.785 C92.931,113.764 92.908,113.725 92.908,113.684 L92.908,62.813 C92.908,62.771 92.931,62.733 92.966,62.712 L168.484,19.112 C168.52,19.09 168.565,19.09 168.601,19.112 C168.637,19.132 168.66,19.171 168.66,19.212 L168.66,70.083 C168.66,70.125 168.637,70.164 168.601,70.184 L141.28,85.958 C141.251,85.975 141.217,85.979 141.186,85.968 C141.154,85.958 141.129,85.936 141.115,85.906 L134.655,71.738 C134.28,70.915 133.593,70.463 132.72,70.463 C131.632,70.463 130.357,71.148 129.221,72.344 C128.186,73.433 127.347,74.881 126.919,76.315 L120.458,97.943 C120.45,97.972 120.431,97.996 120.405,98.01 L93.083,113.785 C93.065,113.795 93.045,113.8 93.025,113.8 L93.025,113.8 Z M93.142,62.881 L93.142,113.481 L120.248,97.832 L126.695,76.248 C127.14,74.758 127.977,73.315 129.052,72.183 C130.231,70.942 131.568,70.229 132.72,70.229 C133.689,70.229 134.452,70.731 134.867,71.641 L141.274,85.692 L168.426,70.016 L168.426,19.415 L93.142,62.881 L93.142,62.881 Z" id="Fill-16" fill="#607D8B"></path>
                    <path d="M169.8,70.083 L142.478,85.857 L136.018,71.689 C135.108,69.694 132.59,69.951 130.393,72.263 C129.339,73.374 128.5,74.819 128.064,76.282 L121.603,97.909 L94.282,113.683 L94.282,62.813 L169.8,19.213 L169.8,70.083 Z" id="Fill-17" fill="#FAFAFA"></path>
                    <path d="M94.282,113.917 C94.241,113.917 94.201,113.907 94.165,113.886 C94.093,113.845 94.048,113.767 94.048,113.684 L94.048,62.813 C94.048,62.73 94.093,62.652 94.165,62.611 L169.683,19.01 C169.755,18.969 169.844,18.969 169.917,19.01 C169.989,19.052 170.033,19.129 170.033,19.212 L170.033,70.083 C170.033,70.166 169.989,70.244 169.917,70.285 L142.595,86.06 C142.538,86.092 142.469,86.1 142.407,86.08 C142.344,86.06 142.293,86.014 142.266,85.954 L135.805,71.786 C135.445,70.997 134.813,70.58 133.977,70.58 C132.921,70.58 131.676,71.252 130.562,72.424 C129.54,73.501 128.711,74.931 128.287,76.348 L121.827,97.976 C121.81,98.034 121.771,98.082 121.72,98.112 L94.398,113.886 C94.362,113.907 94.322,113.917 94.282,113.917 L94.282,113.917 Z M94.515,62.948 L94.515,113.279 L121.406,97.754 L127.84,76.215 C128.29,74.708 129.137,73.247 130.224,72.103 C131.425,70.838 132.793,70.112 133.977,70.112 C134.995,70.112 135.795,70.638 136.23,71.592 L142.584,85.526 L169.566,69.948 L169.566,19.617 L94.515,62.948 L94.515,62.948 Z" id="Fill-18" fill="#607D8B"></path>
                    <path d="M109.894,92.943 L109.894,92.943 C108.12,92.943 106.653,92.218 105.65,90.823 C105.583,90.731 105.593,90.61 105.673,90.529 C105.753,90.448 105.88,90.44 105.974,90.506 C106.754,91.053 107.679,91.333 108.724,91.333 C110.047,91.333 111.478,90.894 112.98,90.027 C118.291,86.96 122.611,79.509 122.611,73.416 C122.611,71.489 122.169,69.856 121.333,68.692 C121.266,68.6 121.276,68.473 121.356,68.392 C121.436,68.311 121.563,68.299 121.656,68.365 C123.327,69.537 124.247,71.746 124.247,74.584 C124.247,80.826 119.821,88.447 114.382,91.587 C112.808,92.495 111.298,92.943 109.894,92.943 L109.894,92.943 Z M106.925,91.401 C107.738,92.052 108.745,92.278 109.893,92.278 L109.894,92.278 C111.215,92.278 112.647,91.951 114.148,91.084 C119.459,88.017 123.78,80.621 123.78,74.528 C123.78,72.549 123.317,70.929 122.454,69.767 C122.865,70.802 123.079,72.042 123.079,73.402 C123.079,79.645 118.653,87.285 113.214,90.425 C111.64,91.334 110.13,91.742 108.724,91.742 C108.083,91.742 107.481,91.593 106.925,91.401 L106.925,91.401 Z" id="Fill-19" fill="#607D8B"></path>
                    <path d="M113.097,90.23 C118.481,87.122 122.845,79.594 122.845,73.416 C122.845,71.365 122.362,69.724 121.522,68.556 C119.738,67.304 117.148,67.362 114.265,69.026 C108.881,72.134 104.517,79.662 104.517,85.84 C104.517,87.891 105,89.532 105.84,90.7 C107.624,91.952 110.214,91.894 113.097,90.23" id="Fill-20" fill="#FAFAFA"></path>
                    <path d="M108.724,91.614 L108.724,91.614 C107.582,91.614 106.566,91.401 105.705,90.797 C105.684,90.783 105.665,90.811 105.65,90.79 C104.756,89.546 104.283,87.842 104.283,85.817 C104.283,79.575 108.709,71.953 114.148,68.812 C115.722,67.904 117.232,67.449 118.638,67.449 C119.78,67.449 120.796,67.758 121.656,68.362 C121.678,68.377 121.697,68.397 121.712,68.418 C122.606,69.662 123.079,71.39 123.079,73.415 C123.079,79.658 118.653,87.198 113.214,90.338 C111.64,91.247 110.13,91.614 108.724,91.614 L108.724,91.614 Z M106.006,90.505 C106.78,91.037 107.694,91.281 108.724,91.281 C110.047,91.281 111.478,90.868 112.98,90.001 C118.291,86.935 122.611,79.496 122.611,73.403 C122.611,71.494 122.177,69.88 121.356,68.718 C120.582,68.185 119.668,67.919 118.638,67.919 C117.315,67.919 115.883,68.36 114.382,69.227 C109.071,72.293 104.751,79.733 104.751,85.826 C104.751,87.735 105.185,89.343 106.006,90.505 L106.006,90.505 Z" id="Fill-21" fill="#607D8B"></path>
                    <path d="M149.318,7.262 L139.334,16.14 L155.227,27.171 L160.816,21.059 L149.318,7.262" id="Fill-22" fill="#FAFAFA"></path>
                    <path d="M169.676,13.84 L159.928,19.467 C156.286,21.57 150.4,21.58 146.781,19.491 C143.161,17.402 143.18,14.003 146.822,11.9 L156.317,6.292 L149.588,2.407 L67.752,49.478 L113.675,75.992 L116.756,74.213 C117.387,73.848 117.625,73.315 117.374,72.823 C115.017,68.191 114.781,63.277 116.691,58.561 C122.329,44.641 141.2,33.746 165.309,30.491 C173.478,29.388 181.989,29.524 190.013,30.885 C190.865,31.03 191.789,30.893 192.42,30.528 L195.501,28.75 L169.676,13.84" id="Fill-23" fill="#FAFAFA"></path>
                    <path d="M113.675,76.459 C113.594,76.459 113.514,76.438 113.442,76.397 L67.518,49.882 C67.374,49.799 67.284,49.645 67.285,49.478 C67.285,49.311 67.374,49.157 67.519,49.073 L149.355,2.002 C149.499,1.919 149.677,1.919 149.821,2.002 L156.55,5.887 C156.774,6.017 156.85,6.302 156.722,6.526 C156.592,6.749 156.307,6.826 156.083,6.696 L149.587,2.946 L68.687,49.479 L113.675,75.452 L116.523,73.808 C116.715,73.697 117.143,73.399 116.958,73.035 C114.542,68.287 114.3,63.221 116.258,58.385 C119.064,51.458 125.143,45.143 133.84,40.122 C142.497,35.124 153.358,31.633 165.247,30.028 C173.445,28.921 182.037,29.058 190.091,30.425 C190.83,30.55 191.652,30.432 192.186,30.124 L194.567,28.75 L169.442,14.244 C169.219,14.115 169.142,13.829 169.271,13.606 C169.4,13.382 169.685,13.306 169.909,13.435 L195.734,28.345 C195.879,28.428 195.968,28.583 195.968,28.75 C195.968,28.916 195.879,29.071 195.734,29.154 L192.653,30.933 C191.932,31.35 190.89,31.508 189.935,31.346 C181.972,29.995 173.478,29.86 165.372,30.954 C153.602,32.543 142.86,35.993 134.307,40.931 C125.793,45.847 119.851,52.004 117.124,58.736 C115.27,63.314 115.501,68.112 117.79,72.611 C118.16,73.336 117.845,74.124 116.99,74.617 L113.909,76.397 C113.836,76.438 113.756,76.459 113.675,76.459" id="Fill-24" fill="#455A64"></path>
                    <path d="M153.316,21.279 C150.903,21.279 148.495,20.751 146.664,19.693 C144.846,18.644 143.844,17.232 143.844,15.718 C143.844,14.191 144.86,12.763 146.705,11.698 L156.198,6.091 C156.309,6.025 156.452,6.062 156.518,6.173 C156.583,6.284 156.547,6.427 156.436,6.493 L146.94,12.102 C145.244,13.081 144.312,14.365 144.312,15.718 C144.312,17.058 145.23,18.326 146.897,19.289 C150.446,21.338 156.24,21.327 159.811,19.265 L169.559,13.637 C169.67,13.573 169.813,13.611 169.878,13.723 C169.943,13.834 169.904,13.977 169.793,14.042 L160.045,19.67 C158.187,20.742 155.749,21.279 153.316,21.279" id="Fill-25" fill="#607D8B"></path>
                    <path d="M113.675,75.992 L67.762,49.484" id="Fill-26" fill="#455A64"></path>
                    <path d="M113.675,76.342 C113.615,76.342 113.555,76.327 113.5,76.295 L67.587,49.787 C67.419,49.69 67.362,49.476 67.459,49.309 C67.556,49.141 67.77,49.083 67.937,49.18 L113.85,75.688 C114.018,75.785 114.075,76 113.978,76.167 C113.914,76.279 113.796,76.342 113.675,76.342" id="Fill-27" fill="#455A64"></path>
                    <path d="M67.762,49.484 L67.762,103.485 C67.762,104.575 68.532,105.903 69.482,106.452 L111.955,130.973 C112.905,131.522 113.675,131.083 113.675,129.993 L113.675,75.992" id="Fill-28" fill="#FAFAFA"></path>
                    <path d="M112.727,131.561 C112.43,131.561 112.107,131.466 111.78,131.276 L69.307,106.755 C68.244,106.142 67.412,104.705 67.412,103.485 L67.412,49.484 C67.412,49.29 67.569,49.134 67.762,49.134 C67.956,49.134 68.113,49.29 68.113,49.484 L68.113,103.485 C68.113,104.445 68.82,105.665 69.657,106.148 L112.13,130.67 C112.474,130.868 112.791,130.913 113,130.792 C113.206,130.673 113.325,130.381 113.325,129.993 L113.325,75.992 C113.325,75.798 113.482,75.641 113.675,75.641 C113.869,75.641 114.025,75.798 114.025,75.992 L114.025,129.993 C114.025,130.648 113.786,131.147 113.35,131.399 C113.162,131.507 112.952,131.561 112.727,131.561" id="Fill-29" fill="#455A64"></path>
                    <path d="M112.86,40.512 C112.86,40.512 112.86,40.512 112.859,40.512 C110.541,40.512 108.36,39.99 106.717,39.041 C105.012,38.057 104.074,36.726 104.074,35.292 C104.074,33.847 105.026,32.501 106.754,31.504 L118.795,24.551 C120.463,23.589 122.669,23.058 125.007,23.058 C127.325,23.058 129.506,23.581 131.15,24.53 C132.854,25.514 133.793,26.845 133.793,28.278 C133.793,29.724 132.841,31.069 131.113,32.067 L119.071,39.019 C117.403,39.982 115.197,40.512 112.86,40.512 L112.86,40.512 Z M125.007,23.759 C122.79,23.759 120.709,24.256 119.146,25.158 L107.104,32.11 C105.602,32.978 104.774,34.108 104.774,35.292 C104.774,36.465 105.589,37.581 107.067,38.434 C108.605,39.323 110.663,39.812 112.859,39.812 L112.86,39.812 C115.076,39.812 117.158,39.315 118.721,38.413 L130.762,31.46 C132.264,30.593 133.092,29.463 133.092,28.278 C133.092,27.106 132.278,25.99 130.8,25.136 C129.261,24.248 127.204,23.759 125.007,23.759 L125.007,23.759 Z" id="Fill-30" fill="#607D8B"></path>
                    <path d="M165.63,16.219 L159.896,19.53 C156.729,21.358 151.61,21.367 148.463,19.55 C145.316,17.733 145.332,14.778 148.499,12.949 L154.233,9.639 L165.63,16.219" id="Fill-31" fill="#FAFAFA"></path>
                    <path d="M154.233,10.448 L164.228,16.219 L159.546,18.923 C158.112,19.75 156.194,20.206 154.147,20.206 C152.118,20.206 150.224,19.757 148.814,18.943 C147.524,18.199 146.814,17.249 146.814,16.269 C146.814,15.278 147.537,14.314 148.85,13.556 L154.233,10.448 M154.233,9.639 L148.499,12.949 C145.332,14.778 145.316,17.733 148.463,19.55 C150.031,20.455 152.086,20.907 154.147,20.907 C156.224,20.907 158.306,20.447 159.896,19.53 L165.63,16.219 L154.233,9.639" id="Fill-32" fill="#607D8B"></path>
                    <path d="M145.445,72.667 L145.445,72.667 C143.672,72.667 142.204,71.817 141.202,70.422 C141.135,70.33 141.145,70.147 141.225,70.066 C141.305,69.985 141.432,69.946 141.525,70.011 C142.306,70.559 143.231,70.823 144.276,70.822 C145.598,70.822 147.03,70.376 148.532,69.509 C153.842,66.443 158.163,58.987 158.163,52.894 C158.163,50.967 157.721,49.332 156.884,48.168 C156.818,48.076 156.828,47.948 156.908,47.867 C156.988,47.786 157.114,47.774 157.208,47.84 C158.878,49.012 159.798,51.22 159.798,54.059 C159.798,60.301 155.373,68.046 149.933,71.186 C148.36,72.094 146.85,72.667 145.445,72.667 L145.445,72.667 Z M142.476,71 C143.29,71.651 144.296,72.002 145.445,72.002 C146.767,72.002 148.198,71.55 149.7,70.682 C155.01,67.617 159.331,60.159 159.331,54.065 C159.331,52.085 158.868,50.435 158.006,49.272 C158.417,50.307 158.63,51.532 158.63,52.892 C158.63,59.134 154.205,66.767 148.765,69.907 C147.192,70.816 145.681,71.283 144.276,71.283 C143.634,71.283 143.033,71.192 142.476,71 L142.476,71 Z" id="Fill-33" fill="#607D8B"></path>
                    <path d="M148.648,69.704 C154.032,66.596 158.396,59.068 158.396,52.891 C158.396,50.839 157.913,49.198 157.074,48.03 C155.289,46.778 152.699,46.836 149.816,48.501 C144.433,51.609 140.068,59.137 140.068,65.314 C140.068,67.365 140.552,69.006 141.391,70.174 C143.176,71.427 145.765,71.369 148.648,69.704" id="Fill-34" fill="#FAFAFA"></path>
                    <path d="M144.276,71.276 L144.276,71.276 C143.133,71.276 142.118,70.969 141.257,70.365 C141.236,70.351 141.217,70.332 141.202,70.311 C140.307,69.067 139.835,67.339 139.835,65.314 C139.835,59.073 144.26,51.439 149.7,48.298 C151.273,47.39 152.784,46.929 154.189,46.929 C155.332,46.929 156.347,47.236 157.208,47.839 C157.229,47.854 157.248,47.873 157.263,47.894 C158.157,49.138 158.63,50.865 158.63,52.891 C158.63,59.132 154.205,66.766 148.765,69.907 C147.192,70.815 145.681,71.276 144.276,71.276 L144.276,71.276 Z M141.558,70.104 C142.331,70.637 143.245,71.005 144.276,71.005 C145.598,71.005 147.03,70.467 148.532,69.6 C153.842,66.534 158.163,59.033 158.163,52.939 C158.163,51.031 157.729,49.385 156.907,48.223 C156.133,47.691 155.219,47.409 154.189,47.409 C152.867,47.409 151.435,47.842 149.933,48.709 C144.623,51.775 140.302,59.273 140.302,65.366 C140.302,67.276 140.736,68.942 141.558,70.104 L141.558,70.104 Z" id="Fill-35" fill="#607D8B"></path>
                    <path d="M150.72,65.361 L150.357,65.066 C151.147,64.092 151.869,63.04 152.505,61.938 C153.313,60.539 153.978,59.067 154.482,57.563 L154.925,57.712 C154.412,59.245 153.733,60.745 152.91,62.172 C152.262,63.295 151.525,64.368 150.72,65.361" id="Fill-36" fill="#607D8B"></path>
                    <path d="M115.917,84.514 L115.554,84.22 C116.344,83.245 117.066,82.194 117.702,81.092 C118.51,79.692 119.175,78.22 119.678,76.717 L120.121,76.865 C119.608,78.398 118.93,79.899 118.106,81.326 C117.458,82.448 116.722,83.521 115.917,84.514" id="Fill-37" fill="#607D8B"></path>
                    <path d="M114,130.476 L114,130.008 L114,76.052 L114,75.584 L114,76.052 L114,130.008 L114,130.476" id="Fill-38" fill="#607D8B"></path>
                </g>
                <g id="Imported-Layers-Copy" transform="translate(62.000000, 0.000000)" sketch:type="MSShapeGroup">
                    <path d="M19.822,37.474 C19.839,37.339 19.747,37.194 19.555,37.082 C19.228,36.894 18.729,36.872 18.446,37.037 L12.434,40.508 C12.303,40.584 12.24,40.686 12.243,40.793 C12.245,40.925 12.245,41.254 12.245,41.371 L12.245,41.414 L12.238,41.542 C8.148,43.887 5.647,45.321 5.647,45.321 C5.646,45.321 3.57,46.367 2.86,50.513 C2.86,50.513 1.948,57.474 1.962,70.258 C1.977,82.828 2.568,87.328 3.129,91.609 C3.349,93.293 6.13,93.734 6.13,93.734 C6.461,93.774 6.828,93.707 7.21,93.486 L82.483,49.935 C84.291,48.866 85.15,46.216 85.539,43.651 C86.752,35.661 87.214,10.673 85.264,3.773 C85.068,3.08 84.754,2.69 84.396,2.491 L82.31,1.701 C81.583,1.729 80.894,2.168 80.776,2.236 C80.636,2.317 41.807,24.585 20.032,37.072 L19.822,37.474" id="Fill-1" fill="#FFFFFF"></path>
                    <path d="M82.311,1.701 L84.396,2.491 C84.754,2.69 85.068,3.08 85.264,3.773 C87.213,10.673 86.751,35.66 85.539,43.651 C85.149,46.216 84.29,48.866 82.483,49.935 L7.21,93.486 C6.897,93.667 6.595,93.744 6.314,93.744 L6.131,93.733 C6.131,93.734 3.349,93.293 3.128,91.609 C2.568,87.327 1.977,82.828 1.963,70.258 C1.948,57.474 2.86,50.513 2.86,50.513 C3.57,46.367 5.647,45.321 5.647,45.321 C5.647,45.321 8.148,43.887 12.238,41.542 L12.245,41.414 L12.245,41.371 C12.245,41.254 12.245,40.925 12.243,40.793 C12.24,40.686 12.302,40.583 12.434,40.508 L18.446,37.036 C18.574,36.962 18.746,36.926 18.927,36.926 C19.145,36.926 19.376,36.979 19.554,37.082 C19.747,37.194 19.839,37.34 19.822,37.474 L20.033,37.072 C41.806,24.585 80.636,2.318 80.777,2.236 C80.894,2.168 81.583,1.729 82.311,1.701 M82.311,0.704 L82.272,0.705 C81.654,0.728 80.989,0.949 80.298,1.361 L80.277,1.373 C80.129,1.458 59.768,13.135 19.758,36.079 C19.5,35.981 19.214,35.929 18.927,35.929 C18.562,35.929 18.223,36.013 17.947,36.173 L11.935,39.644 C11.493,39.899 11.236,40.334 11.246,40.81 L11.247,40.96 L5.167,44.447 C4.794,44.646 2.625,45.978 1.877,50.345 L1.871,50.384 C1.862,50.454 0.951,57.557 0.965,70.259 C0.979,82.879 1.568,87.375 2.137,91.724 L2.139,91.739 C2.447,94.094 5.614,94.662 5.975,94.719 L6.009,94.723 C6.11,94.736 6.213,94.742 6.314,94.742 C6.79,94.742 7.26,94.61 7.71,94.35 L82.983,50.798 C84.794,49.727 85.982,47.375 86.525,43.801 C87.711,35.987 88.259,10.705 86.224,3.502 C85.971,2.609 85.52,1.975 84.881,1.62 L84.749,1.558 L82.664,0.769 C82.551,0.725 82.431,0.704 82.311,0.704" id="Fill-2" fill="#455A64"></path>
                    <path d="M66.267,11.565 L67.762,11.999 L11.423,44.325" id="Fill-3" fill="#FFFFFF"></path>
                    <path d="M12.202,90.545 C12.029,90.545 11.862,90.455 11.769,90.295 C11.632,90.057 11.713,89.752 11.952,89.614 L30.389,78.969 C30.628,78.831 30.933,78.913 31.071,79.152 C31.208,79.39 31.127,79.696 30.888,79.833 L12.451,90.478 L12.202,90.545" id="Fill-4" fill="#607D8B"></path>
                    <path d="M13.764,42.654 L13.656,42.592 L13.702,42.421 L18.837,39.457 L19.007,39.502 L18.962,39.673 L13.827,42.637 L13.764,42.654" id="Fill-5" fill="#607D8B"></path>
                    <path d="M8.52,90.375 L8.52,46.421 L8.583,46.385 L75.84,7.554 L75.84,51.508 L75.778,51.544 L8.52,90.375 L8.52,90.375 Z M8.77,46.564 L8.77,89.944 L75.591,51.365 L75.591,7.985 L8.77,46.564 L8.77,46.564 Z" id="Fill-6" fill="#607D8B"></path>
                    <path d="M24.986,83.182 C24.756,83.331 24.374,83.566 24.137,83.705 L12.632,90.406 C12.395,90.545 12.426,90.658 12.7,90.658 L13.265,90.658 C13.54,90.658 13.958,90.545 14.195,90.406 L25.7,83.705 C25.937,83.566 26.128,83.452 26.125,83.449 C26.122,83.447 26.119,83.22 26.119,82.946 C26.119,82.672 25.931,82.569 25.701,82.719 L24.986,83.182" id="Fill-7" fill="#607D8B"></path>
                    <path d="M13.266,90.782 L12.7,90.782 C12.5,90.782 12.384,90.726 12.354,90.616 C12.324,90.506 12.397,90.399 12.569,90.299 L24.074,83.597 C24.31,83.459 24.689,83.226 24.918,83.078 L25.633,82.614 C25.723,82.555 25.813,82.525 25.899,82.525 C26.071,82.525 26.244,82.655 26.244,82.946 C26.244,83.16 26.245,83.309 26.247,83.383 L26.253,83.387 L26.249,83.456 C26.246,83.531 26.246,83.531 25.763,83.812 L14.258,90.514 C14,90.665 13.564,90.782 13.266,90.782 L13.266,90.782 Z M12.666,90.532 L12.7,90.533 L13.266,90.533 C13.518,90.533 13.915,90.425 14.132,90.299 L25.637,83.597 C25.805,83.499 25.931,83.424 25.998,83.383 C25.994,83.299 25.994,83.165 25.994,82.946 L25.899,82.775 L25.768,82.824 L25.054,83.287 C24.822,83.437 24.438,83.673 24.2,83.812 L12.695,90.514 L12.666,90.532 L12.666,90.532 Z" id="Fill-8" fill="#607D8B"></path>
                    <path d="M13.266,89.871 L12.7,89.871 C12.5,89.871 12.384,89.815 12.354,89.705 C12.324,89.595 12.397,89.488 12.569,89.388 L24.074,82.686 C24.332,82.535 24.768,82.418 25.067,82.418 L25.632,82.418 C25.832,82.418 25.948,82.474 25.978,82.584 C26.008,82.694 25.935,82.801 25.763,82.901 L14.258,89.603 C14,89.754 13.564,89.871 13.266,89.871 L13.266,89.871 Z M12.666,89.621 L12.7,89.622 L13.266,89.622 C13.518,89.622 13.915,89.515 14.132,89.388 L25.637,82.686 L25.667,82.668 L25.632,82.667 L25.067,82.667 C24.815,82.667 24.418,82.775 24.2,82.901 L12.695,89.603 L12.666,89.621 L12.666,89.621 Z" id="Fill-9" fill="#607D8B"></path>
                    <path d="M12.37,90.801 L12.37,89.554 L12.37,90.801" id="Fill-10" fill="#607D8B"></path>
                    <path d="M6.13,93.901 C5.379,93.808 4.816,93.164 4.691,92.525 C3.86,88.287 3.54,83.743 3.526,71.173 C3.511,58.389 4.423,51.428 4.423,51.428 C5.134,47.282 7.21,46.236 7.21,46.236 C7.21,46.236 81.667,3.25 82.069,3.017 C82.292,2.888 84.556,1.433 85.264,3.94 C87.214,10.84 86.752,35.827 85.539,43.818 C85.15,46.383 84.291,49.033 82.483,50.101 L7.21,93.653 C6.828,93.874 6.461,93.941 6.13,93.901 C6.13,93.901 3.349,93.46 3.129,91.776 C2.568,87.495 1.977,82.995 1.962,70.425 C1.948,57.641 2.86,50.68 2.86,50.68 C3.57,46.534 5.647,45.489 5.647,45.489 C5.646,45.489 8.065,44.092 12.245,41.679 L13.116,41.56 L19.715,37.73 L19.761,37.269 L6.13,93.901" id="Fill-11" fill="#FAFAFA"></path>
                    <path d="M6.317,94.161 L6.102,94.148 L6.101,94.148 L5.857,94.101 C5.138,93.945 3.085,93.365 2.881,91.809 C2.313,87.469 1.727,82.996 1.713,70.425 C1.699,57.771 2.604,50.718 2.613,50.648 C3.338,46.417 5.445,45.31 5.535,45.266 L12.163,41.439 L13.033,41.32 L19.479,37.578 L19.513,37.244 C19.526,37.107 19.647,37.008 19.786,37.021 C19.922,37.034 20.023,37.156 20.009,37.293 L19.95,37.882 L13.198,41.801 L12.328,41.919 L5.772,45.704 C5.741,45.72 3.782,46.772 3.106,50.722 C3.099,50.782 2.198,57.808 2.212,70.424 C2.226,82.963 2.809,87.42 3.373,91.729 C3.464,92.42 4.062,92.883 4.682,93.181 C4.566,92.984 4.486,92.776 4.446,92.572 C3.665,88.588 3.291,84.37 3.276,71.173 C3.262,58.52 4.167,51.466 4.176,51.396 C4.901,47.165 7.008,46.059 7.098,46.014 C7.094,46.015 81.542,3.034 81.944,2.802 L81.972,2.785 C82.876,2.247 83.692,2.097 84.332,2.352 C84.887,2.573 85.281,3.085 85.504,3.872 C87.518,11 86.964,36.091 85.785,43.855 C85.278,47.196 84.21,49.37 82.61,50.317 L7.335,93.869 C6.999,94.063 6.658,94.161 6.317,94.161 L6.317,94.161 Z M6.17,93.654 C6.463,93.69 6.774,93.617 7.085,93.437 L82.358,49.886 C84.181,48.808 84.96,45.971 85.292,43.78 C86.466,36.049 87.023,11.085 85.024,4.008 C84.846,3.377 84.551,2.976 84.148,2.816 C83.664,2.623 82.982,2.764 82.227,3.213 L82.193,3.234 C81.791,3.466 7.335,46.452 7.335,46.452 C7.304,46.469 5.346,47.521 4.669,51.471 C4.662,51.53 3.761,58.556 3.775,71.173 C3.79,84.328 4.161,88.524 4.936,92.476 C5.026,92.937 5.412,93.459 5.973,93.615 C6.087,93.64 6.158,93.652 6.169,93.654 L6.17,93.654 L6.17,93.654 Z" id="Fill-12" fill="#455A64"></path>
                    <path d="M7.317,68.982 C7.806,68.701 8.202,68.926 8.202,69.487 C8.202,70.047 7.806,70.73 7.317,71.012 C6.829,71.294 6.433,71.069 6.433,70.508 C6.433,69.948 6.829,69.265 7.317,68.982" id="Fill-13" fill="#FFFFFF"></path>
                    <path d="M6.92,71.133 C6.631,71.133 6.433,70.905 6.433,70.508 C6.433,69.948 6.829,69.265 7.317,68.982 C7.46,68.9 7.595,68.861 7.714,68.861 C8.003,68.861 8.202,69.09 8.202,69.487 C8.202,70.047 7.806,70.73 7.317,71.012 C7.174,71.094 7.039,71.133 6.92,71.133 M7.714,68.674 C7.557,68.674 7.392,68.723 7.224,68.821 C6.676,69.138 6.246,69.879 6.246,70.508 C6.246,70.994 6.517,71.32 6.92,71.32 C7.078,71.32 7.243,71.271 7.411,71.174 C7.959,70.857 8.389,70.117 8.389,69.487 C8.389,69.001 8.117,68.674 7.714,68.674" id="Fill-14" fill="#8097A2"></path>
                    <path d="M6.92,70.947 C6.649,70.947 6.621,70.64 6.621,70.508 C6.621,70.017 6.982,69.392 7.411,69.145 C7.521,69.082 7.625,69.049 7.714,69.049 C7.986,69.049 8.015,69.355 8.015,69.487 C8.015,69.978 7.652,70.603 7.224,70.851 C7.115,70.914 7.01,70.947 6.92,70.947 M7.714,68.861 C7.595,68.861 7.46,68.9 7.317,68.982 C6.829,69.265 6.433,69.948 6.433,70.508 C6.433,70.905 6.631,71.133 6.92,71.133 C7.039,71.133 7.174,71.094 7.317,71.012 C7.806,70.73 8.202,70.047 8.202,69.487 C8.202,69.09 8.003,68.861 7.714,68.861" id="Fill-15" fill="#8097A2"></path>
                    <path d="M7.444,85.35 C7.708,85.198 7.921,85.319 7.921,85.622 C7.921,85.925 7.708,86.292 7.444,86.444 C7.181,86.597 6.967,86.475 6.967,86.173 C6.967,85.871 7.181,85.502 7.444,85.35" id="Fill-16" fill="#FFFFFF"></path>
                    <path d="M7.23,86.51 C7.074,86.51 6.967,86.387 6.967,86.173 C6.967,85.871 7.181,85.502 7.444,85.35 C7.521,85.305 7.594,85.284 7.658,85.284 C7.814,85.284 7.921,85.408 7.921,85.622 C7.921,85.925 7.708,86.292 7.444,86.444 C7.367,86.489 7.294,86.51 7.23,86.51 M7.658,85.098 C7.558,85.098 7.455,85.127 7.351,85.188 C7.031,85.373 6.781,85.806 6.781,86.173 C6.781,86.482 6.966,86.697 7.23,86.697 C7.33,86.697 7.433,86.666 7.538,86.607 C7.858,86.422 8.108,85.989 8.108,85.622 C8.108,85.313 7.923,85.098 7.658,85.098" id="Fill-17" fill="#8097A2"></path>
                    <path d="M7.23,86.322 L7.154,86.173 C7.154,85.938 7.333,85.629 7.538,85.512 L7.658,85.471 L7.734,85.622 C7.734,85.856 7.555,86.164 7.351,86.282 L7.23,86.322 M7.658,85.284 C7.594,85.284 7.521,85.305 7.444,85.35 C7.181,85.502 6.967,85.871 6.967,86.173 C6.967,86.387 7.074,86.51 7.23,86.51 C7.294,86.51 7.367,86.489 7.444,86.444 C7.708,86.292 7.921,85.925 7.921,85.622 C7.921,85.408 7.814,85.284 7.658,85.284" id="Fill-18" fill="#8097A2"></path>
                    <path d="M77.278,7.769 L77.278,51.436 L10.208,90.16 L10.208,46.493 L77.278,7.769" id="Fill-19" fill="#455A64"></path>
                    <path d="M10.083,90.375 L10.083,46.421 L10.146,46.385 L77.403,7.554 L77.403,51.508 L77.341,51.544 L10.083,90.375 L10.083,90.375 Z M10.333,46.564 L10.333,89.944 L77.154,51.365 L77.154,7.985 L10.333,46.564 L10.333,46.564 Z" id="Fill-20" fill="#607D8B"></path>
                </g>
                <path d="M125.737,88.647 L118.098,91.981 L118.098,84 L106.639,88.713 L106.639,96.982 L99,100.315 L112.369,103.961 L125.737,88.647" id="Imported-Layers-Copy-2" fill="#455A64" sketch:type="MSShapeGroup"></path>
            </g>
        </g>
    </g>
</svg>';
+var rotateInstructionsAsset = "<svg width='198' height='240' viewBox='0 0 198 240' xmlns='http://www.w3.org/2000/svg'><g fill='none' fill-rule='evenodd'><path d='M149.625 109.527l6.737 3.891v.886c0 .177.013.36.038.549.01.081.02.162.027.242.14 1.415.974 2.998 2.105 3.999l5.72 5.062.081-.09s4.382-2.53 5.235-3.024l25.97 14.993v54.001c0 .771-.386 1.217-.948 1.217-.233 0-.495-.076-.772-.236l-23.967-13.838-.014.024-27.322 15.775-.85-1.323c-4.731-1.529-9.748-2.74-14.951-3.61a.27.27 0 0 0-.007.024l-5.067 16.961-7.891 4.556-.037-.063v27.59c0 .772-.386 1.217-.948 1.217-.232 0-.495-.076-.772-.236l-42.473-24.522c-.95-.549-1.72-1.877-1.72-2.967v-1.035l-.021.047a5.111 5.111 0 0 0-1.816-.399 5.682 5.682 0 0 0-.546.001 13.724 13.724 0 0 1-1.918-.041c-1.655-.153-3.2-.6-4.404-1.296l-46.576-26.89.005.012-10.278-18.75c-1.001-1.827-.241-4.216 1.698-5.336l56.011-32.345a4.194 4.194 0 0 1 2.099-.572c1.326 0 2.572.659 3.227 1.853l.005-.003.227.413-.006.004a9.63 9.63 0 0 0 1.477 2.018l.277.27c1.914 1.85 4.468 2.801 7.113 2.801 1.949 0 3.948-.517 5.775-1.572.013 0 7.319-4.219 7.319-4.219a4.194 4.194 0 0 1 2.099-.572c1.326 0 2.572.658 3.226 1.853l3.25 5.928.022-.018 6.785 3.917-.105-.182 46.881-26.965m0-1.635c-.282 0-.563.073-.815.218l-46.169 26.556-5.41-3.124-3.005-5.481c-.913-1.667-2.699-2.702-4.66-2.703-1.011 0-2.02.274-2.917.792a3825 3825 0 0 1-7.275 4.195l-.044.024a9.937 9.937 0 0 1-4.957 1.353c-2.292 0-4.414-.832-5.976-2.342l-.252-.245a7.992 7.992 0 0 1-1.139-1.534 1.379 1.379 0 0 0-.06-.122l-.227-.414a1.718 1.718 0 0 0-.095-.154c-.938-1.574-2.673-2.545-4.571-2.545-1.011 0-2.02.274-2.917.792L3.125 155.502c-2.699 1.559-3.738 4.94-2.314 7.538l10.278 18.75c.177.323.448.563.761.704l46.426 26.804c1.403.81 3.157 1.332 5.072 1.508a15.661 15.661 0 0 0 2.146.046 4.766 4.766 0 0 1 .396 0c.096.004.19.011.283.022.109 1.593 1.159 3.323 2.529 4.114l42.472 24.522c.524.302 1.058.455 1.59.455 1.497 0 2.583-1.2 2.583-2.852v-26.562l7.111-4.105a1.64 1.64 0 0 0 .749-.948l4.658-15.593c4.414.797 8.692 1.848 12.742 3.128l.533.829a1.634 1.634 0 0 0 2.193.531l26.532-15.317L193 192.433c.523.302 1.058.455 1.59.455 1.497 0 2.583-1.199 2.583-2.852v-54.001c0-.584-.312-1.124-.818-1.416l-25.97-14.993a1.633 1.633 0 0 0-1.636.001c-.606.351-2.993 1.73-4.325 2.498l-4.809-4.255c-.819-.725-1.461-1.933-1.561-2.936a7.776 7.776 0 0 0-.033-.294 2.487 2.487 0 0 1-.023-.336v-.886c0-.584-.312-1.123-.817-1.416l-6.739-3.891a1.633 1.633 0 0 0-.817-.219' fill='#455A64'/><path d='M96.027 132.636l46.576 26.891c1.204.695 1.979 1.587 2.242 2.541l-.01.007-81.374 46.982h-.001c-1.654-.152-3.199-.6-4.403-1.295l-46.576-26.891 83.546-48.235' fill='#FAFAFA'/><path d='M63.461 209.174c-.008 0-.015 0-.022-.002-1.693-.156-3.228-.609-4.441-1.309l-46.576-26.89a.118.118 0 0 1 0-.203l83.546-48.235a.117.117 0 0 1 .117 0l46.576 26.891c1.227.708 2.021 1.612 2.296 2.611a.116.116 0 0 1-.042.124l-.021.016-81.375 46.981a.11.11 0 0 1-.058.016zm-50.747-28.303l46.401 26.79c1.178.68 2.671 1.121 4.32 1.276l81.272-46.922c-.279-.907-1.025-1.73-2.163-2.387l-46.517-26.857-83.313 48.1z' fill='#607D8B'/><path d='M148.327 165.471a5.85 5.85 0 0 1-.546.001c-1.894-.083-3.302-1.038-3.145-2.132a2.693 2.693 0 0 0-.072-1.105l-81.103 46.822c.628.058 1.272.073 1.918.042.182-.009.364-.009.546-.001 1.894.083 3.302 1.038 3.145 2.132l79.257-45.759' fill='#FFF'/><path d='M69.07 211.347a.118.118 0 0 1-.115-.134c.045-.317-.057-.637-.297-.925-.505-.61-1.555-1.022-2.738-1.074a5.966 5.966 0 0 0-.535.001 14.03 14.03 0 0 1-1.935-.041.117.117 0 0 1-.103-.092.116.116 0 0 1 .055-.126l81.104-46.822a.117.117 0 0 1 .171.07c.104.381.129.768.074 1.153-.045.316.057.637.296.925.506.61 1.555 1.021 2.739 1.073.178.008.357.008.535-.001a.117.117 0 0 1 .064.218l-79.256 45.759a.114.114 0 0 1-.059.016zm-3.405-2.372c.089 0 .177.002.265.006 1.266.056 2.353.488 2.908 1.158.227.274.35.575.36.882l78.685-45.429c-.036 0-.072-.001-.107-.003-1.267-.056-2.354-.489-2.909-1.158-.282-.34-.402-.724-.347-1.107a2.604 2.604 0 0 0-.032-.91L63.846 208.97a13.91 13.91 0 0 0 1.528.012c.097-.005.194-.007.291-.007z' fill='#607D8B'/><path d='M2.208 162.134c-1.001-1.827-.241-4.217 1.698-5.337l56.011-32.344c1.939-1.12 4.324-.546 5.326 1.281l.232.41a9.344 9.344 0 0 0 1.47 2.021l.278.27c3.325 3.214 8.583 3.716 12.888 1.23l7.319-4.22c1.94-1.119 4.324-.546 5.325 1.282l3.25 5.928-83.519 48.229-10.278-18.75z' fill='#FAFAFA'/><path d='M12.486 181.001a.112.112 0 0 1-.031-.005.114.114 0 0 1-.071-.056L2.106 162.19c-1.031-1.88-.249-4.345 1.742-5.494l56.01-32.344a4.328 4.328 0 0 1 2.158-.588c1.415 0 2.65.702 3.311 1.882.01.008.018.017.024.028l.227.414a.122.122 0 0 1 .013.038 9.508 9.508 0 0 0 1.439 1.959l.275.266c1.846 1.786 4.344 2.769 7.031 2.769 1.977 0 3.954-.538 5.717-1.557a.148.148 0 0 1 .035-.013l7.284-4.206a4.321 4.321 0 0 1 2.157-.588c1.427 0 2.672.716 3.329 1.914l3.249 5.929a.116.116 0 0 1-.044.157l-83.518 48.229a.116.116 0 0 1-.059.016zm49.53-57.004c-.704 0-1.41.193-2.041.557l-56.01 32.345c-1.882 1.086-2.624 3.409-1.655 5.179l10.221 18.645 83.317-48.112-3.195-5.829c-.615-1.122-1.783-1.792-3.124-1.792a4.08 4.08 0 0 0-2.04.557l-7.317 4.225a.148.148 0 0 1-.035.013 11.7 11.7 0 0 1-5.801 1.569c-2.748 0-5.303-1.007-7.194-2.835l-.278-.27a9.716 9.716 0 0 1-1.497-2.046.096.096 0 0 1-.013-.037l-.191-.347a.11.11 0 0 1-.023-.029c-.615-1.123-1.783-1.793-3.124-1.793z' fill='#607D8B'/><path d='M42.434 155.808c-2.51-.001-4.697-1.258-5.852-3.365-1.811-3.304-.438-7.634 3.059-9.654l12.291-7.098a7.599 7.599 0 0 1 3.789-1.033c2.51 0 4.697 1.258 5.852 3.365 1.811 3.304.439 7.634-3.059 9.654l-12.291 7.098a7.606 7.606 0 0 1-3.789 1.033zm13.287-20.683a7.128 7.128 0 0 0-3.555.971l-12.291 7.098c-3.279 1.893-4.573 5.942-2.883 9.024 1.071 1.955 3.106 3.122 5.442 3.122a7.13 7.13 0 0 0 3.556-.97l12.291-7.098c3.279-1.893 4.572-5.942 2.883-9.024-1.072-1.955-3.106-3.123-5.443-3.123z' fill='#607D8B'/><path d='M149.588 109.407l6.737 3.89v.887c0 .176.013.36.037.549.011.081.02.161.028.242.14 1.415.973 2.998 2.105 3.999l7.396 6.545c.177.156.358.295.541.415 1.579 1.04 2.95.466 3.062-1.282.049-.784.057-1.595.023-2.429l-.003-.16v-1.151l25.987 15.003v54c0 1.09-.77 1.53-1.72.982l-42.473-24.523c-.95-.548-1.72-1.877-1.72-2.966v-34.033' fill='#FAFAFA'/><path d='M194.553 191.25c-.257 0-.54-.085-.831-.253l-42.472-24.521c-.981-.567-1.779-1.943-1.779-3.068v-34.033h.234v34.033c0 1.051.745 2.336 1.661 2.866l42.473 24.521c.424.245.816.288 1.103.122.285-.164.442-.52.442-1.002v-53.933l-25.753-14.868.003 1.106c.034.832.026 1.654-.024 2.439-.054.844-.396 1.464-.963 1.746-.619.309-1.45.173-2.28-.373a5.023 5.023 0 0 1-.553-.426l-7.397-6.544c-1.158-1.026-1.999-2.625-2.143-4.076a9.624 9.624 0 0 0-.027-.238 4.241 4.241 0 0 1-.038-.564v-.82l-6.68-3.856.117-.202 6.738 3.89.058.034v.954c0 .171.012.351.036.533.011.083.021.165.029.246.138 1.395.948 2.935 2.065 3.923l7.397 6.545c.173.153.35.289.527.406.758.499 1.504.63 2.047.359.49-.243.786-.795.834-1.551.05-.778.057-1.591.024-2.417l-.004-.163v-1.355l.175.1 25.987 15.004.059.033v54.068c0 .569-.198.996-.559 1.204a1.002 1.002 0 0 1-.506.131' fill='#607D8B'/><path d='M145.685 163.161l24.115 13.922-25.978 14.998-1.462-.307c-6.534-2.17-13.628-3.728-21.019-4.616-4.365-.524-8.663 1.096-9.598 3.62a2.746 2.746 0 0 0-.011 1.928c1.538 4.267 4.236 8.363 7.995 12.135l.532.845-25.977 14.997-24.115-13.922 75.518-43.6' fill='#FFF'/><path d='M94.282 220.818l-.059-.033-24.29-14.024.175-.101 75.577-43.634.058.033 24.29 14.024-26.191 15.122-.045-.01-1.461-.307c-6.549-2.174-13.613-3.725-21.009-4.614a13.744 13.744 0 0 0-1.638-.097c-3.758 0-7.054 1.531-7.837 3.642a2.62 2.62 0 0 0-.01 1.848c1.535 4.258 4.216 8.326 7.968 12.091l.016.021.526.835.006.01.064.102-.105.061-25.977 14.998-.058.033zm-23.881-14.057l23.881 13.788 24.802-14.32c.546-.315.846-.489 1.017-.575l-.466-.74c-3.771-3.787-6.467-7.881-8.013-12.168a2.851 2.851 0 0 1 .011-2.008c.815-2.199 4.203-3.795 8.056-3.795.557 0 1.117.033 1.666.099 7.412.891 14.491 2.445 21.041 4.621.836.175 1.215.254 1.39.304l25.78-14.884-23.881-13.788-75.284 43.466z' fill='#607D8B'/><path d='M167.23 125.979v50.871l-27.321 15.773-6.461-14.167c-.91-1.996-3.428-1.738-5.624.574a10.238 10.238 0 0 0-2.33 4.018l-6.46 21.628-27.322 15.774v-50.871l75.518-43.6' fill='#FFF'/><path d='M91.712 220.567a.127.127 0 0 1-.059-.016.118.118 0 0 1-.058-.101v-50.871c0-.042.023-.08.058-.101l75.519-43.6a.117.117 0 0 1 .175.101v50.871c0 .041-.023.08-.059.1l-27.321 15.775a.118.118 0 0 1-.094.01.12.12 0 0 1-.071-.063l-6.46-14.168c-.375-.822-1.062-1.275-1.934-1.275-1.089 0-2.364.686-3.5 1.881a10.206 10.206 0 0 0-2.302 3.972l-6.46 21.627a.118.118 0 0 1-.054.068L91.77 220.551a.12.12 0 0 1-.058.016zm.117-50.92v50.601l27.106-15.65 6.447-21.583a10.286 10.286 0 0 1 2.357-4.065c1.18-1.242 2.517-1.954 3.669-1.954.969 0 1.731.501 2.146 1.411l6.407 14.051 27.152-15.676v-50.601l-75.284 43.466z' fill='#607D8B'/><path d='M168.543 126.213v50.87l-27.322 15.774-6.46-14.168c-.91-1.995-3.428-1.738-5.624.574a10.248 10.248 0 0 0-2.33 4.019l-6.461 21.627-27.321 15.774v-50.87l75.518-43.6' fill='#FFF'/><path d='M93.025 220.8a.123.123 0 0 1-.059-.015.12.12 0 0 1-.058-.101v-50.871c0-.042.023-.08.058-.101l75.518-43.6a.112.112 0 0 1 .117 0c.036.02.059.059.059.1v50.871a.116.116 0 0 1-.059.101l-27.321 15.774a.111.111 0 0 1-.094.01.115.115 0 0 1-.071-.062l-6.46-14.168c-.375-.823-1.062-1.275-1.935-1.275-1.088 0-2.363.685-3.499 1.881a10.19 10.19 0 0 0-2.302 3.971l-6.461 21.628a.108.108 0 0 1-.053.067l-27.322 15.775a.12.12 0 0 1-.058.015zm.117-50.919v50.6l27.106-15.649 6.447-21.584a10.293 10.293 0 0 1 2.357-4.065c1.179-1.241 2.516-1.954 3.668-1.954.969 0 1.732.502 2.147 1.412l6.407 14.051 27.152-15.676v-50.601l-75.284 43.466z' fill='#607D8B'/><path d='M169.8 177.083l-27.322 15.774-6.46-14.168c-.91-1.995-3.428-1.738-5.625.574a10.246 10.246 0 0 0-2.329 4.019l-6.461 21.627-27.321 15.774v-50.87l75.518-43.6v50.87z' fill='#FAFAFA'/><path d='M94.282 220.917a.234.234 0 0 1-.234-.233v-50.871c0-.083.045-.161.117-.202l75.518-43.601a.234.234 0 1 1 .35.202v50.871a.233.233 0 0 1-.116.202l-27.322 15.775a.232.232 0 0 1-.329-.106l-6.461-14.168c-.36-.789-.992-1.206-1.828-1.206-1.056 0-2.301.672-3.415 1.844a10.099 10.099 0 0 0-2.275 3.924l-6.46 21.628a.235.235 0 0 1-.107.136l-27.322 15.774a.23.23 0 0 1-.116.031zm.233-50.969v50.331l26.891-15.525 6.434-21.539a10.41 10.41 0 0 1 2.384-4.112c1.201-1.265 2.569-1.991 3.753-1.991 1.018 0 1.818.526 2.253 1.48l6.354 13.934 26.982-15.578v-50.331l-75.051 43.331z' fill='#607D8B'/><path d='M109.894 199.943c-1.774 0-3.241-.725-4.244-2.12a.224.224 0 0 1 .023-.294.233.233 0 0 1 .301-.023c.78.547 1.705.827 2.75.827 1.323 0 2.754-.439 4.256-1.306 5.311-3.067 9.631-10.518 9.631-16.611 0-1.927-.442-3.56-1.278-4.724a.232.232 0 0 1 .323-.327c1.671 1.172 2.591 3.381 2.591 6.219 0 6.242-4.426 13.863-9.865 17.003-1.574.908-3.084 1.356-4.488 1.356zm-2.969-1.542c.813.651 1.82.877 2.968.877h.001c1.321 0 2.753-.327 4.254-1.194 5.311-3.067 9.632-10.463 9.632-16.556 0-1.979-.463-3.599-1.326-4.761.411 1.035.625 2.275.625 3.635 0 6.243-4.426 13.883-9.865 17.023-1.574.909-3.084 1.317-4.49 1.317-.641 0-1.243-.149-1.799-.341z' fill='#607D8B'/><path d='M113.097 197.23c5.384-3.108 9.748-10.636 9.748-16.814 0-2.051-.483-3.692-1.323-4.86-1.784-1.252-4.374-1.194-7.257.47-5.384 3.108-9.748 10.636-9.748 16.814 0 2.051.483 3.692 1.323 4.86 1.784 1.252 4.374 1.194 7.257-.47' fill='#FAFAFA'/><path d='M108.724 198.614c-1.142 0-2.158-.213-3.019-.817-.021-.014-.04.014-.055-.007-.894-1.244-1.367-2.948-1.367-4.973 0-6.242 4.426-13.864 9.865-17.005 1.574-.908 3.084-1.363 4.49-1.363 1.142 0 2.158.309 3.018.913a.23.23 0 0 1 .056.056c.894 1.244 1.367 2.972 1.367 4.997 0 6.243-4.426 13.783-9.865 16.923-1.574.909-3.084 1.276-4.49 1.276zm-2.718-1.109c.774.532 1.688.776 2.718.776 1.323 0 2.754-.413 4.256-1.28 5.311-3.066 9.631-10.505 9.631-16.598 0-1.909-.434-3.523-1.255-4.685-.774-.533-1.688-.799-2.718-.799-1.323 0-2.755.441-4.256 1.308-5.311 3.066-9.631 10.506-9.631 16.599 0 1.909.434 3.517 1.255 4.679z' fill='#607D8B'/><path d='M149.318 114.262l-9.984 8.878 15.893 11.031 5.589-6.112-11.498-13.797' fill='#FAFAFA'/><path d='M169.676 120.84l-9.748 5.627c-3.642 2.103-9.528 2.113-13.147.024-3.62-2.089-3.601-5.488.041-7.591l9.495-5.608-6.729-3.885-81.836 47.071 45.923 26.514 3.081-1.779c.631-.365.869-.898.618-1.39-2.357-4.632-2.593-9.546-.683-14.262 5.638-13.92 24.509-24.815 48.618-28.07 8.169-1.103 16.68-.967 24.704.394.852.145 1.776.008 2.407-.357l3.081-1.778-25.825-14.91' fill='#FAFAFA'/><path d='M113.675 183.459a.47.47 0 0 1-.233-.062l-45.924-26.515a.468.468 0 0 1 .001-.809l81.836-47.071a.467.467 0 0 1 .466 0l6.729 3.885a.467.467 0 0 1-.467.809l-6.496-3.75-80.9 46.533 44.988 25.973 2.848-1.644c.192-.111.62-.409.435-.773-2.416-4.748-2.658-9.814-.7-14.65 2.806-6.927 8.885-13.242 17.582-18.263 8.657-4.998 19.518-8.489 31.407-10.094 8.198-1.107 16.79-.97 24.844.397.739.125 1.561.007 2.095-.301l2.381-1.374-25.125-14.506a.467.467 0 0 1 .467-.809l25.825 14.91a.467.467 0 0 1 0 .809l-3.081 1.779c-.721.417-1.763.575-2.718.413-7.963-1.351-16.457-1.486-24.563-.392-11.77 1.589-22.512 5.039-31.065 9.977-8.514 4.916-14.456 11.073-17.183 17.805-1.854 4.578-1.623 9.376.666 13.875.37.725.055 1.513-.8 2.006l-3.081 1.78a.476.476 0 0 1-.234.062' fill='#455A64'/><path d='M153.316 128.279c-2.413 0-4.821-.528-6.652-1.586-1.818-1.049-2.82-2.461-2.82-3.975 0-1.527 1.016-2.955 2.861-4.02l9.493-5.607a.233.233 0 1 1 .238.402l-9.496 5.609c-1.696.979-2.628 2.263-2.628 3.616 0 1.34.918 2.608 2.585 3.571 3.549 2.049 9.343 2.038 12.914-.024l9.748-5.628a.234.234 0 0 1 .234.405l-9.748 5.628c-1.858 1.072-4.296 1.609-6.729 1.609' fill='#607D8B'/><path d='M113.675 182.992l-45.913-26.508M113.675 183.342a.346.346 0 0 1-.175-.047l-45.913-26.508a.35.35 0 1 1 .35-.607l45.913 26.508a.35.35 0 0 1-.175.654' fill='#455A64'/><path d='M67.762 156.484v54.001c0 1.09.77 2.418 1.72 2.967l42.473 24.521c.95.549 1.72.11 1.72-.98v-54.001' fill='#FAFAFA'/><path d='M112.727 238.561c-.297 0-.62-.095-.947-.285l-42.473-24.521c-1.063-.613-1.895-2.05-1.895-3.27v-54.001a.35.35 0 1 1 .701 0v54.001c0 .96.707 2.18 1.544 2.663l42.473 24.522c.344.198.661.243.87.122.206-.119.325-.411.325-.799v-54.001a.35.35 0 1 1 .7 0v54.001c0 .655-.239 1.154-.675 1.406a1.235 1.235 0 0 1-.623.162' fill='#455A64'/><path d='M112.86 147.512h-.001c-2.318 0-4.499-.522-6.142-1.471-1.705-.984-2.643-2.315-2.643-3.749 0-1.445.952-2.791 2.68-3.788l12.041-6.953c1.668-.962 3.874-1.493 6.212-1.493 2.318 0 4.499.523 6.143 1.472 1.704.984 2.643 2.315 2.643 3.748 0 1.446-.952 2.791-2.68 3.789l-12.042 6.952c-1.668.963-3.874 1.493-6.211 1.493zm12.147-16.753c-2.217 0-4.298.497-5.861 1.399l-12.042 6.952c-1.502.868-2.33 1.998-2.33 3.182 0 1.173.815 2.289 2.293 3.142 1.538.889 3.596 1.378 5.792 1.378h.001c2.216 0 4.298-.497 5.861-1.399l12.041-6.953c1.502-.867 2.33-1.997 2.33-3.182 0-1.172-.814-2.288-2.292-3.142-1.539-.888-3.596-1.377-5.793-1.377z' fill='#607D8B'/><path d='M165.63 123.219l-5.734 3.311c-3.167 1.828-8.286 1.837-11.433.02-3.147-1.817-3.131-4.772.036-6.601l5.734-3.31 11.397 6.58' fill='#FAFAFA'/><path d='M154.233 117.448l9.995 5.771-4.682 2.704c-1.434.827-3.352 1.283-5.399 1.283-2.029 0-3.923-.449-5.333-1.263-1.29-.744-2-1.694-2-2.674 0-.991.723-1.955 2.036-2.713l5.383-3.108m0-.809l-5.734 3.31c-3.167 1.829-3.183 4.784-.036 6.601 1.568.905 3.623 1.357 5.684 1.357 2.077 0 4.159-.46 5.749-1.377l5.734-3.311-11.397-6.58M145.445 179.667c-1.773 0-3.241-.85-4.243-2.245-.067-.092-.057-.275.023-.356.08-.081.207-.12.3-.055.781.548 1.706.812 2.751.811 1.322 0 2.754-.446 4.256-1.313 5.31-3.066 9.631-10.522 9.631-16.615 0-1.927-.442-3.562-1.279-4.726a.235.235 0 0 1 .024-.301.232.232 0 0 1 .3-.027c1.67 1.172 2.59 3.38 2.59 6.219 0 6.242-4.425 13.987-9.865 17.127-1.573.908-3.083 1.481-4.488 1.481zM142.476 178c.814.651 1.82 1.002 2.969 1.002 1.322 0 2.753-.452 4.255-1.32 5.31-3.065 9.631-10.523 9.631-16.617 0-1.98-.463-3.63-1.325-4.793.411 1.035.624 2.26.624 3.62 0 6.242-4.425 13.875-9.865 17.015-1.573.909-3.084 1.376-4.489 1.376a5.49 5.49 0 0 1-1.8-.283z' fill='#607D8B'/><path d='M148.648 176.704c5.384-3.108 9.748-10.636 9.748-16.813 0-2.052-.483-3.693-1.322-4.861-1.785-1.252-4.375-1.194-7.258.471-5.383 3.108-9.748 10.636-9.748 16.813 0 2.051.484 3.692 1.323 4.86 1.785 1.253 4.374 1.195 7.257-.47' fill='#FAFAFA'/><path d='M144.276 178.276c-1.143 0-2.158-.307-3.019-.911a.217.217 0 0 1-.055-.054c-.895-1.244-1.367-2.972-1.367-4.997 0-6.241 4.425-13.875 9.865-17.016 1.573-.908 3.084-1.369 4.489-1.369 1.143 0 2.158.307 3.019.91a.24.24 0 0 1 .055.055c.894 1.244 1.367 2.971 1.367 4.997 0 6.241-4.425 13.875-9.865 17.016-1.573.908-3.084 1.369-4.489 1.369zm-2.718-1.172c.773.533 1.687.901 2.718.901 1.322 0 2.754-.538 4.256-1.405 5.31-3.066 9.631-10.567 9.631-16.661 0-1.908-.434-3.554-1.256-4.716-.774-.532-1.688-.814-2.718-.814-1.322 0-2.754.433-4.256 1.3-5.31 3.066-9.631 10.564-9.631 16.657 0 1.91.434 3.576 1.256 4.738z' fill='#607D8B'/><path d='M150.72 172.361l-.363-.295a24.105 24.105 0 0 0 2.148-3.128 24.05 24.05 0 0 0 1.977-4.375l.443.149a24.54 24.54 0 0 1-2.015 4.46 24.61 24.61 0 0 1-2.19 3.189M115.917 191.514l-.363-.294a24.174 24.174 0 0 0 2.148-3.128 24.038 24.038 0 0 0 1.976-4.375l.443.148a24.48 24.48 0 0 1-2.015 4.461 24.662 24.662 0 0 1-2.189 3.188M114 237.476V182.584 237.476' fill='#607D8B'/><g><path d='M81.822 37.474c.017-.135-.075-.28-.267-.392-.327-.188-.826-.21-1.109-.045l-6.012 3.471c-.131.076-.194.178-.191.285.002.132.002.461.002.578v.043l-.007.128-6.591 3.779c-.001 0-2.077 1.046-2.787 5.192 0 0-.912 6.961-.898 19.745.015 12.57.606 17.07 1.167 21.351.22 1.684 3.001 2.125 3.001 2.125.331.04.698-.027 1.08-.248l75.273-43.551c1.808-1.069 2.667-3.719 3.056-6.284 1.213-7.99 1.675-32.978-.275-39.878-.196-.693-.51-1.083-.868-1.282l-2.086-.79c-.727.028-1.416.467-1.534.535L82.032 37.072l-.21.402' fill='#FFF'/><path d='M144.311 1.701l2.085.79c.358.199.672.589.868 1.282 1.949 6.9 1.487 31.887.275 39.878-.39 2.565-1.249 5.215-3.056 6.284L69.21 93.486a1.78 1.78 0 0 1-.896.258l-.183-.011c0 .001-2.782-.44-3.003-2.124-.56-4.282-1.151-8.781-1.165-21.351-.015-12.784.897-19.745.897-19.745.71-4.146 2.787-5.192 2.787-5.192l6.591-3.779.007-.128v-.043c0-.117 0-.446-.002-.578-.003-.107.059-.21.191-.285l6.012-3.472a.98.98 0 0 1 .481-.11c.218 0 .449.053.627.156.193.112.285.258.268.392l.211-.402 60.744-34.836c.117-.068.806-.507 1.534-.535m0-.997l-.039.001c-.618.023-1.283.244-1.974.656l-.021.012-60.519 34.706a2.358 2.358 0 0 0-.831-.15c-.365 0-.704.084-.98.244l-6.012 3.471c-.442.255-.699.69-.689 1.166l.001.15-6.08 3.487c-.373.199-2.542 1.531-3.29 5.898l-.006.039c-.009.07-.92 7.173-.906 19.875.014 12.62.603 17.116 1.172 21.465l.002.015c.308 2.355 3.475 2.923 3.836 2.98l.034.004c.101.013.204.019.305.019a2.77 2.77 0 0 0 1.396-.392l75.273-43.552c1.811-1.071 2.999-3.423 3.542-6.997 1.186-7.814 1.734-33.096-.301-40.299-.253-.893-.704-1.527-1.343-1.882l-.132-.062-2.085-.789a.973.973 0 0 0-.353-.065' fill='#455A64'/><path d='M128.267 11.565l1.495.434-56.339 32.326' fill='#FFF'/><path d='M74.202 90.545a.5.5 0 0 1-.25-.931l18.437-10.645a.499.499 0 1 1 .499.864L74.451 90.478l-.249.067M75.764 42.654l-.108-.062.046-.171 5.135-2.964.17.045-.045.171-5.135 2.964-.063.017M70.52 90.375V46.421l.063-.036L137.84 7.554v43.954l-.062.036L70.52 90.375zm.25-43.811v43.38l66.821-38.579V7.985L70.77 46.564z' fill='#607D8B'/><path d='M86.986 83.182c-.23.149-.612.384-.849.523l-11.505 6.701c-.237.139-.206.252.068.252h.565c.275 0 .693-.113.93-.252L87.7 83.705c.237-.139.428-.253.425-.256a11.29 11.29 0 0 1-.006-.503c0-.274-.188-.377-.418-.227l-.715.463' fill='#607D8B'/><path d='M75.266 90.782H74.7c-.2 0-.316-.056-.346-.166-.03-.11.043-.217.215-.317l11.505-6.702c.236-.138.615-.371.844-.519l.715-.464a.488.488 0 0 1 .266-.089c.172 0 .345.13.345.421 0 .214.001.363.003.437l.006.004-.004.069c-.003.075-.003.075-.486.356l-11.505 6.702a2.282 2.282 0 0 1-.992.268zm-.6-.25l.034.001h.566c.252 0 .649-.108.866-.234l11.505-6.702c.168-.098.294-.173.361-.214-.004-.084-.004-.218-.004-.437l-.095-.171-.131.049-.714.463c-.232.15-.616.386-.854.525l-11.505 6.702-.029.018z' fill='#607D8B'/><path d='M75.266 89.871H74.7c-.2 0-.316-.056-.346-.166-.03-.11.043-.217.215-.317l11.505-6.702c.258-.151.694-.268.993-.268h.565c.2 0 .316.056.346.166.03.11-.043.217-.215.317l-11.505 6.702a2.282 2.282 0 0 1-.992.268zm-.6-.25l.034.001h.566c.252 0 .649-.107.866-.234l11.505-6.702.03-.018-.035-.001h-.565c-.252 0-.649.108-.867.234l-11.505 6.702-.029.018zM74.37 90.801v-1.247 1.247' fill='#607D8B'/><path d='M68.13 93.901c-.751-.093-1.314-.737-1.439-1.376-.831-4.238-1.151-8.782-1.165-21.352-.015-12.784.897-19.745.897-19.745.711-4.146 2.787-5.192 2.787-5.192l74.859-43.219c.223-.129 2.487-1.584 3.195.923 1.95 6.9 1.488 31.887.275 39.878-.389 2.565-1.248 5.215-3.056 6.283L69.21 93.653c-.382.221-.749.288-1.08.248 0 0-2.781-.441-3.001-2.125-.561-4.281-1.152-8.781-1.167-21.351-.014-12.784.898-19.745.898-19.745.71-4.146 2.787-5.191 2.787-5.191l6.598-3.81.871-.119 6.599-3.83.046-.461L68.13 93.901' fill='#FAFAFA'/><path d='M68.317 94.161l-.215-.013h-.001l-.244-.047c-.719-.156-2.772-.736-2.976-2.292-.568-4.34-1.154-8.813-1.168-21.384-.014-12.654.891-19.707.9-19.777.725-4.231 2.832-5.338 2.922-5.382l6.628-3.827.87-.119 6.446-3.742.034-.334a.248.248 0 0 1 .273-.223.248.248 0 0 1 .223.272l-.059.589-6.752 3.919-.87.118-6.556 3.785c-.031.016-1.99 1.068-2.666 5.018-.007.06-.908 7.086-.894 19.702.014 12.539.597 16.996 1.161 21.305.091.691.689 1.154 1.309 1.452a1.95 1.95 0 0 1-.236-.609c-.781-3.984-1.155-8.202-1.17-21.399-.014-12.653.891-19.707.9-19.777.725-4.231 2.832-5.337 2.922-5.382-.004.001 74.444-42.98 74.846-43.212l.028-.017c.904-.538 1.72-.688 2.36-.433.555.221.949.733 1.172 1.52 2.014 7.128 1.46 32.219.281 39.983-.507 3.341-1.575 5.515-3.175 6.462L69.335 93.869a2.023 2.023 0 0 1-1.018.292zm-.147-.507c.293.036.604-.037.915-.217l75.273-43.551c1.823-1.078 2.602-3.915 2.934-6.106 1.174-7.731 1.731-32.695-.268-39.772-.178-.631-.473-1.032-.876-1.192-.484-.193-1.166-.052-1.921.397l-.034.021-74.858 43.218c-.031.017-1.989 1.069-2.666 5.019-.007.059-.908 7.085-.894 19.702.015 13.155.386 17.351 1.161 21.303.09.461.476.983 1.037 1.139.114.025.185.037.196.039h.001z' fill='#455A64'/><path d='M69.317 68.982c.489-.281.885-.056.885.505 0 .56-.396 1.243-.885 1.525-.488.282-.884.057-.884-.504 0-.56.396-1.243.884-1.526' fill='#FFF'/><path d='M68.92 71.133c-.289 0-.487-.228-.487-.625 0-.56.396-1.243.884-1.526a.812.812 0 0 1 .397-.121c.289 0 .488.229.488.626 0 .56-.396 1.243-.885 1.525a.812.812 0 0 1-.397.121m.794-2.459a.976.976 0 0 0-.49.147c-.548.317-.978 1.058-.978 1.687 0 .486.271.812.674.812a.985.985 0 0 0 .491-.146c.548-.317.978-1.057.978-1.687 0-.486-.272-.813-.675-.813' fill='#8097A2'/><path d='M68.92 70.947c-.271 0-.299-.307-.299-.439 0-.491.361-1.116.79-1.363a.632.632 0 0 1 .303-.096c.272 0 .301.306.301.438 0 .491-.363 1.116-.791 1.364a.629.629 0 0 1-.304.096m.794-2.086a.812.812 0 0 0-.397.121c-.488.283-.884.966-.884 1.526 0 .397.198.625.487.625a.812.812 0 0 0 .397-.121c.489-.282.885-.965.885-1.525 0-.397-.199-.626-.488-.626' fill='#8097A2'/><path d='M69.444 85.35c.264-.152.477-.031.477.272 0 .303-.213.67-.477.822-.263.153-.477.031-.477-.271 0-.302.214-.671.477-.823' fill='#FFF'/><path d='M69.23 86.51c-.156 0-.263-.123-.263-.337 0-.302.214-.671.477-.823a.431.431 0 0 1 .214-.066c.156 0 .263.124.263.338 0 .303-.213.67-.477.822a.431.431 0 0 1-.214.066m.428-1.412c-.1 0-.203.029-.307.09-.32.185-.57.618-.57.985 0 .309.185.524.449.524a.63.63 0 0 0 .308-.09c.32-.185.57-.618.57-.985 0-.309-.185-.524-.45-.524' fill='#8097A2'/><path d='M69.23 86.322l-.076-.149c0-.235.179-.544.384-.661l.12-.041.076.151c0 .234-.179.542-.383.66l-.121.04m.428-1.038a.431.431 0 0 0-.214.066c-.263.152-.477.521-.477.823 0 .214.107.337.263.337a.431.431 0 0 0 .214-.066c.264-.152.477-.519.477-.822 0-.214-.107-.338-.263-.338' fill='#8097A2'/><path d='M139.278 7.769v43.667L72.208 90.16V46.493l67.07-38.724' fill='#455A64'/><path d='M72.083 90.375V46.421l.063-.036 67.257-38.831v43.954l-.062.036-67.258 38.831zm.25-43.811v43.38l66.821-38.579V7.985L72.333 46.564z' fill='#607D8B'/></g><path d='M125.737 88.647l-7.639 3.334V84l-11.459 4.713v8.269L99 100.315l13.369 3.646 13.368-15.314' fill='#455A64'/></g></svg>";
 function RotateInstructions() {
   this.loadIcon_();
   var overlay = document.createElement('div');
@@ -4057,7 +4394,7 @@ RotateInstructions.prototype.update = function () {
   }
 };
 RotateInstructions.prototype.loadIcon_ = function () {
-  this.icon = base64('image/svg+xml', rotateInstructionsAsset);
+  this.icon = dataUri('image/svg+xml', rotateInstructionsAsset);
 };
 var DEFAULT_VIEWER = 'CardboardV1';
 var VIEWER_KEY = 'WEBVR_CARDBOARD_VIEWER';
@@ -4202,7 +4539,7 @@ ViewerSelector.prototype.createButton_ = function (label, onclick) {
 };
 var commonjsGlobal$$1 = typeof window !== 'undefined' ? window : typeof commonjsGlobal !== 'undefined' ? commonjsGlobal : typeof self !== 'undefined' ? self : {};
 function unwrapExports$$1 (x) {
-	return x && x.__esModule ? x['default'] : x;
+	return x && x.__esModule && Object.prototype.hasOwnProperty.call(x, 'default') ? x['default'] : x;
 }
 function createCommonjsModule$$1(fn, module) {
 	return module = { exports: {} }, fn(module, module.exports), module.exports;
@@ -4813,585 +5150,235 @@ CardboardVRDisplay.prototype.beginPresent_ = function () {
       e.stopPropagation();
       e.preventDefault();
     }.bind(this), function (e) {
-      this.exitPresent();
-      e.stopPropagation();
-      e.preventDefault();
-    }.bind(this));
-  }
-  if (this.rotateInstructions_) {
-    if (isLandscapeMode() && isMobile()) {
-      this.rotateInstructions_.showTemporarily(3000, this.layer_.source.parentElement);
-    } else {
-      this.rotateInstructions_.update();
-    }
-  }
-  this.orientationHandler = this.onOrientationChange_.bind(this);
-  window.addEventListener('orientationchange', this.orientationHandler);
-  this.vrdisplaypresentchangeHandler = this.updateBounds_.bind(this);
-  window.addEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
-  this.fireVRDisplayDeviceParamsChange_();
-};
-CardboardVRDisplay.prototype.endPresent_ = function () {
-  if (this.distorter_) {
-    this.distorter_.destroy();
-    this.distorter_ = null;
-  }
-  if (this.cardboardUI_) {
-    this.cardboardUI_.destroy();
-    this.cardboardUI_ = null;
-  }
-  if (this.rotateInstructions_) {
-    this.rotateInstructions_.hide();
-  }
-  this.viewerSelector_.hide();
-  window.removeEventListener('orientationchange', this.orientationHandler);
-  window.removeEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
-};
-CardboardVRDisplay.prototype.updatePresent_ = function () {
-  this.endPresent_();
-  this.beginPresent_();
-};
-CardboardVRDisplay.prototype.submitFrame = function (pose) {
-  if (this.distorter_) {
-    this.updateBounds_();
-    this.distorter_.submitFrame();
-  } else if (this.cardboardUI_ && this.layer_) {
-    var canvas = this.layer_.source.getContext('webgl').canvas;
-    if (canvas.width != this.lastWidth || canvas.height != this.lastHeight) {
-      this.cardboardUI_.onResize();
-    }
-    this.lastWidth = canvas.width;
-    this.lastHeight = canvas.height;
-    this.cardboardUI_.render();
-  }
-};
-CardboardVRDisplay.prototype.onOrientationChange_ = function (e) {
-  this.viewerSelector_.hide();
-  if (this.rotateInstructions_) {
-    this.rotateInstructions_.update();
-  }
-  this.onResize_();
-};
-CardboardVRDisplay.prototype.onResize_ = function (e) {
-  if (this.layer_) {
-    var gl = this.layer_.source.getContext('webgl');
-    var cssProperties = ['position: absolute', 'top: 0', 'left: 0',
-    'width: 100vw', 'height: 100vh', 'border: 0', 'margin: 0',
-    'padding: 0px', 'box-sizing: content-box'];
-    gl.canvas.setAttribute('style', cssProperties.join('; ') + ';');
-    safariCssSizeWorkaround(gl.canvas);
-  }
-};
-CardboardVRDisplay.prototype.onViewerChanged_ = function (viewer) {
-  this.deviceInfo_.setViewer(viewer);
-  if (this.distorter_) {
-    this.distorter_.updateDeviceInfo(this.deviceInfo_);
-  }
-  this.fireVRDisplayDeviceParamsChange_();
-};
-CardboardVRDisplay.prototype.fireVRDisplayDeviceParamsChange_ = function () {
-  var event = new CustomEvent('vrdisplaydeviceparamschange', {
-    detail: {
-      vrdisplay: this,
-      deviceInfo: this.deviceInfo_
-    }
-  });
-  window.dispatchEvent(event);
-};
-CardboardVRDisplay.VRFrameData = VRFrameData;
-CardboardVRDisplay.VRDisplay = VRDisplay;
-return CardboardVRDisplay;
-})));
-});
-var CardboardVRDisplay = unwrapExports(cardboardVrDisplay);
-
-var PolyfilledXRDevice = function (_EventTarget) {
-  inherits(PolyfilledXRDevice, _EventTarget);
-  function PolyfilledXRDevice(global) {
-    classCallCheck(this, PolyfilledXRDevice);
-    var _this = possibleConstructorReturn(this, (PolyfilledXRDevice.__proto__ || Object.getPrototypeOf(PolyfilledXRDevice)).call(this));
-    _this.global = global;
-    _this.onWindowResize = _this.onWindowResize.bind(_this);
-    _this.global.window.addEventListener('resize', _this.onWindowResize);
-    _this.environmentBlendMode = 'opaque';
-    return _this;
-  }
-  createClass(PolyfilledXRDevice, [{
-    key: 'onBaseLayerSet',
-    value: function onBaseLayerSet(sessionId, layer) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'supportsSession',
-    value: function supportsSession() {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'requestSession',
-    value: function requestSession() {
-      return new Promise(function ($return, $error) {
-        return $error(new Error('Not implemented'));
-      }.bind(this));
-    }
-  }, {
-    key: 'requestAnimationFrame',
-    value: function requestAnimationFrame(callback) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'onFrameStart',
-    value: function onFrameStart(sessionId) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'onFrameEnd',
-    value: function onFrameEnd(sessionId) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'requestStageBounds',
-    value: function requestStageBounds() {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'requestFrameOfReferenceTransform',
-    value: function requestFrameOfReferenceTransform(type, options) {
-      return new Promise(function ($return, $error) {
-        return $return(undefined);
-      }.bind(this));
-    }
-  }, {
-    key: 'cancelAnimationFrame',
-    value: function cancelAnimationFrame(handle) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'endSession',
-    value: function endSession(sessionId) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getViewport',
-    value: function getViewport(sessionId, eye, layer, target) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getProjectionMatrix',
-    value: function getProjectionMatrix(eye) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getBasePoseMatrix',
-    value: function getBasePoseMatrix() {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getBaseViewMatrix',
-    value: function getBaseViewMatrix(eye) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getInputSources',
-    value: function getInputSources() {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'getInputPose',
-    value: function getInputPose(inputSource, coordinateSystem) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'onWindowResize',
-    value: function onWindowResize() {
-      this.onWindowResize();
-    }
-  }, {
-    key: 'depthNear',
-    get: function get$$1() {
-      throw new Error('Not implemented');
-    }
-    ,
-    set: function set$$1(val) {
-      throw new Error('Not implemented');
-    }
-  }, {
-    key: 'depthFar',
-    get: function get$$1() {
-      throw new Error('Not implemented');
-    }
-    ,
-    set: function set$$1(val) {
-      throw new Error('Not implemented');
-    }
-  }]);
-  return PolyfilledXRDevice;
-}(EventTarget);
-
-function create$2() {
-  var out = new ARRAY_TYPE(9);
-  out[0] = 1;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  out[4] = 1;
-  out[5] = 0;
-  out[6] = 0;
-  out[7] = 0;
-  out[8] = 1;
-  return out;
-}
-
-function create$3() {
-  var out = new ARRAY_TYPE(4);
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 0;
-  return out;
-}
-function clone$3(a) {
-  var out = new ARRAY_TYPE(4);
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-function copy$3(out, a) {
-  out[0] = a[0];
-  out[1] = a[1];
-  out[2] = a[2];
-  out[3] = a[3];
-  return out;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-function normalize$1(out, a) {
-  var x = a[0];
-  var y = a[1];
-  var z = a[2];
-  var w = a[3];
-  var len = x * x + y * y + z * z + w * w;
-  if (len > 0) {
-    len = 1 / Math.sqrt(len);
-    out[0] = x * len;
-    out[1] = y * len;
-    out[2] = z * len;
-    out[3] = w * len;
-  }
-  return out;
-}
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-var forEach$1 = function () {
-  var vec = create$3();
-  return function (a, stride, offset, count, fn, arg) {
-    var i = void 0,
-        l = void 0;
-    if (!stride) {
-      stride = 4;
-    }
-    if (!offset) {
-      offset = 0;
-    }
-    if (count) {
-      l = Math.min(count * stride + offset, a.length);
+      this.exitPresent();
+      e.stopPropagation();
+      e.preventDefault();
+    }.bind(this));
+  }
+  if (this.rotateInstructions_) {
+    if (isLandscapeMode() && isMobile()) {
+      this.rotateInstructions_.showTemporarily(3000, this.layer_.source.parentElement);
     } else {
-      l = a.length;
+      this.rotateInstructions_.update();
     }
-    for (i = offset; i < l; i += stride) {
-      vec[0] = a[i];vec[1] = a[i + 1];vec[2] = a[i + 2];vec[3] = a[i + 3];
-      fn(vec, vec, arg);
-      a[i] = vec[0];a[i + 1] = vec[1];a[i + 2] = vec[2];a[i + 3] = vec[3];
+  }
+  this.orientationHandler = this.onOrientationChange_.bind(this);
+  window.addEventListener('orientationchange', this.orientationHandler);
+  this.vrdisplaypresentchangeHandler = this.updateBounds_.bind(this);
+  window.addEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
+  this.fireVRDisplayDeviceParamsChange_();
+};
+CardboardVRDisplay.prototype.endPresent_ = function () {
+  if (this.distorter_) {
+    this.distorter_.destroy();
+    this.distorter_ = null;
+  }
+  if (this.cardboardUI_) {
+    this.cardboardUI_.destroy();
+    this.cardboardUI_ = null;
+  }
+  if (this.rotateInstructions_) {
+    this.rotateInstructions_.hide();
+  }
+  this.viewerSelector_.hide();
+  window.removeEventListener('orientationchange', this.orientationHandler);
+  window.removeEventListener('vrdisplaypresentchange', this.vrdisplaypresentchangeHandler);
+};
+CardboardVRDisplay.prototype.updatePresent_ = function () {
+  this.endPresent_();
+  this.beginPresent_();
+};
+CardboardVRDisplay.prototype.submitFrame = function (pose) {
+  if (this.distorter_) {
+    this.updateBounds_();
+    this.distorter_.submitFrame();
+  } else if (this.cardboardUI_ && this.layer_) {
+    var canvas = this.layer_.source.getContext('webgl').canvas;
+    if (canvas.width != this.lastWidth || canvas.height != this.lastHeight) {
+      this.cardboardUI_.onResize();
     }
-    return a;
-  };
-}();
-
-function create$4() {
-  var out = new ARRAY_TYPE(4);
-  out[0] = 0;
-  out[1] = 0;
-  out[2] = 0;
-  out[3] = 1;
-  return out;
-}
-
-function setAxisAngle(out, axis, rad) {
-  rad = rad * 0.5;
-  var s = Math.sin(rad);
-  out[0] = s * axis[0];
-  out[1] = s * axis[1];
-  out[2] = s * axis[2];
-  out[3] = Math.cos(rad);
-  return out;
-}
-
-function multiply$4(out, a, b) {
-  var ax = a[0],
-      ay = a[1],
-      az = a[2],
-      aw = a[3];
-  var bx = b[0],
-      by = b[1],
-      bz = b[2],
-      bw = b[3];
-  out[0] = ax * bw + aw * bx + ay * bz - az * by;
-  out[1] = ay * bw + aw * by + az * bx - ax * bz;
-  out[2] = az * bw + aw * bz + ax * by - ay * bx;
-  out[3] = aw * bw - ax * bx - ay * by - az * bz;
-  return out;
-}
-
-
-
-
-function slerp(out, a, b, t) {
-  var ax = a[0],
-      ay = a[1],
-      az = a[2],
-      aw = a[3];
-  var bx = b[0],
-      by = b[1],
-      bz = b[2],
-      bw = b[3];
-  var omega = void 0,
-      cosom = void 0,
-      sinom = void 0,
-      scale0 = void 0,
-      scale1 = void 0;
-  cosom = ax * bx + ay * by + az * bz + aw * bw;
-  if (cosom < 0.0) {
-    cosom = -cosom;
-    bx = -bx;
-    by = -by;
-    bz = -bz;
-    bw = -bw;
+    this.lastWidth = canvas.width;
+    this.lastHeight = canvas.height;
+    this.cardboardUI_.render();
   }
-  if (1.0 - cosom > 0.000001) {
-    omega = Math.acos(cosom);
-    sinom = Math.sin(omega);
-    scale0 = Math.sin((1.0 - t) * omega) / sinom;
-    scale1 = Math.sin(t * omega) / sinom;
-  } else {
-    scale0 = 1.0 - t;
-    scale1 = t;
+};
+CardboardVRDisplay.prototype.onOrientationChange_ = function (e) {
+  this.viewerSelector_.hide();
+  if (this.rotateInstructions_) {
+    this.rotateInstructions_.update();
   }
-  out[0] = scale0 * ax + scale1 * bx;
-  out[1] = scale0 * ay + scale1 * by;
-  out[2] = scale0 * az + scale1 * bz;
-  out[3] = scale0 * aw + scale1 * bw;
-  return out;
-}
-function invert$2(out, a) {
-  var a0 = a[0],
-      a1 = a[1],
-      a2 = a[2],
-      a3 = a[3];
-  var dot$$1 = a0 * a0 + a1 * a1 + a2 * a2 + a3 * a3;
-  var invDot = dot$$1 ? 1.0 / dot$$1 : 0;
-  out[0] = -a0 * invDot;
-  out[1] = -a1 * invDot;
-  out[2] = -a2 * invDot;
-  out[3] = a3 * invDot;
-  return out;
-}
+  this.onResize_();
+};
+CardboardVRDisplay.prototype.onResize_ = function (e) {
+  if (this.layer_) {
+    var gl = this.layer_.source.getContext('webgl');
+    var cssProperties = ['position: absolute', 'top: 0', 'left: 0',
+    'width: 100vw', 'height: 100vh', 'border: 0', 'margin: 0',
+    'padding: 0px', 'box-sizing: content-box'];
+    gl.canvas.setAttribute('style', cssProperties.join('; ') + ';');
+    safariCssSizeWorkaround(gl.canvas);
+  }
+};
+CardboardVRDisplay.prototype.onViewerChanged_ = function (viewer) {
+  this.deviceInfo_.setViewer(viewer);
+  if (this.distorter_) {
+    this.distorter_.updateDeviceInfo(this.deviceInfo_);
+  }
+  this.fireVRDisplayDeviceParamsChange_();
+};
+CardboardVRDisplay.prototype.fireVRDisplayDeviceParamsChange_ = function () {
+  var event = new CustomEvent('vrdisplaydeviceparamschange', {
+    detail: {
+      vrdisplay: this,
+      deviceInfo: this.deviceInfo_
+    }
+  });
+  window.dispatchEvent(event);
+};
+CardboardVRDisplay.VRFrameData = VRFrameData;
+CardboardVRDisplay.VRDisplay = VRDisplay;
+return CardboardVRDisplay;
+})));
+});
+var CardboardVRDisplay = unwrapExports(cardboardVrDisplay);
 
-function fromMat3(out, m) {
-  var fTrace = m[0] + m[4] + m[8];
-  var fRoot = void 0;
-  if (fTrace > 0.0) {
-    fRoot = Math.sqrt(fTrace + 1.0);
-    out[3] = 0.5 * fRoot;
-    fRoot = 0.5 / fRoot;
-    out[0] = (m[5] - m[7]) * fRoot;
-    out[1] = (m[6] - m[2]) * fRoot;
-    out[2] = (m[1] - m[3]) * fRoot;
-  } else {
-    var i = 0;
-    if (m[4] > m[0]) i = 1;
-    if (m[8] > m[i * 3 + i]) i = 2;
-    var j = (i + 1) % 3;
-    var k = (i + 2) % 3;
-    fRoot = Math.sqrt(m[i * 3 + i] - m[j * 3 + j] - m[k * 3 + k] + 1.0);
-    out[i] = 0.5 * fRoot;
-    fRoot = 0.5 / fRoot;
-    out[3] = (m[j * 3 + k] - m[k * 3 + j]) * fRoot;
-    out[j] = (m[j * 3 + i] + m[i * 3 + j]) * fRoot;
-    out[k] = (m[k * 3 + i] + m[i * 3 + k]) * fRoot;
+class XRDevice extends EventTarget {
+  constructor(global) {
+    super();
+    this.global = global;
+    this.onWindowResize = this.onWindowResize.bind(this);
+    this.global.window.addEventListener('resize', this.onWindowResize);
+    this.environmentBlendMode = 'opaque';
+  }
+  get depthNear() { throw new Error('Not implemented'); }
+  set depthNear(val) { throw new Error('Not implemented'); }
+  get depthFar() { throw new Error('Not implemented'); }
+  set depthFar(val) { throw new Error('Not implemented'); }
+  onBaseLayerSet(sessionId, layer) { throw new Error('Not implemented'); }
+  onInlineVerticalFieldOfViewSet(sessionId, value) { throw new Error('Not implemented'); }
+  supportsSession(mode) { throw new Error('Not implemented'); }
+  async requestSession(mode) { throw new Error('Not implemented'); }
+  requestAnimationFrame(callback) { throw new Error('Not implemented'); }
+  onFrameStart(sessionId) { throw new Error('Not implemented'); }
+  onFrameEnd(sessionId) { throw new Error('Not implemented'); }
+  requestStageBounds() { throw new Error('Not implemented'); }
+  async requestFrameOfReferenceTransform(type, options) {
+    return undefined;
+  }
+  cancelAnimationFrame(handle) { throw new Error('Not implemented'); }
+  endSession(sessionId) { throw new Error('Not implemented'); }
+  getViewport(sessionId, eye, layer, target) { throw new Error('Not implemented'); }
+  getProjectionMatrix(eye) { throw new Error('Not implemented'); }
+  getBasePoseMatrix() { throw new Error('Not implemented'); }
+  getBaseViewMatrix(eye) { throw new Error('Not implemented'); }
+  getInputSources() { throw new Error('Not implemented'); }
+  getInputPose(inputSource, coordinateSystem, poseType) { throw new Error('Not implemented'); }
+  onWindowResize() {
+    this.onWindowResize();
   }
-  return out;
-}
-function fromEuler(out, x, y, z) {
-  var halfToRad = 0.5 * Math.PI / 180.0;
-  x *= halfToRad;
-  y *= halfToRad;
-  z *= halfToRad;
-  var sx = Math.sin(x);
-  var cx = Math.cos(x);
-  var sy = Math.sin(y);
-  var cy = Math.cos(y);
-  var sz = Math.sin(z);
-  var cz = Math.cos(z);
-  out[0] = sx * cy * cz - cx * sy * sz;
-  out[1] = cx * sy * cz + sx * cy * sz;
-  out[2] = cx * cy * sz - sx * sy * cz;
-  out[3] = cx * cy * cz + sx * sy * sz;
-  return out;
 }
 
-var clone$4 = clone$3;
-
-var copy$4 = copy$3;
-
-
-
-
-
-
-
-
-
-
-var normalize$2 = normalize$1;
-
-
-var rotationTo = function () {
-  var tmpvec3 = create$1();
-  var xUnitVec3 = fromValues$1(1, 0, 0);
-  var yUnitVec3 = fromValues$1(0, 1, 0);
-  return function (out, a, b) {
-    var dot$$1 = dot(a, b);
-    if (dot$$1 < -0.999999) {
-      cross(tmpvec3, xUnitVec3, a);
-      if (len(tmpvec3) < 0.000001) cross(tmpvec3, yUnitVec3, a);
-      normalize(tmpvec3, tmpvec3);
-      setAxisAngle(out, tmpvec3, Math.PI);
-      return out;
-    } else if (dot$$1 > 0.999999) {
-      out[0] = 0;
-      out[1] = 0;
-      out[2] = 0;
-      out[3] = 1;
-      return out;
-    } else {
-      cross(tmpvec3, a, b);
-      out[0] = tmpvec3[0];
-      out[1] = tmpvec3[1];
-      out[2] = tmpvec3[2];
-      out[3] = 1 + dot$$1;
-      return normalize$2(out, out);
+let oculusTouch = {
+  mapping: 'xr-standard',
+  id: 'oculus-touch',
+  buttons: {
+    length: 6,
+    0: 1,
+    1: 0,
+    2: 2,
+    3: null,
+    4: 3,
+    5: 4
+  },
+  gripTransform: {
+    position: [0, -0.02, 0.04, 1],
+    orientation: [Math.PI * 0.11, 0, 0, 1]
+  }
+};
+let windowsMixedReality = {
+  mapping: 'xr-standard',
+  id: 'windows-mixed-reality',
+  buttons: {
+    length: 4,
+    0: 1,
+    1: 0,
+    2: 2,
+    3: 4,
+  },
+  gripTransform: {
+    position: [0, -0.02, 0.04, 1],
+    orientation: [Math.PI * 0.11, 0, 0, 1]
+  }
+};
+let GamepadMappings = {
+  "Oculus Touch (Right)": oculusTouch,
+  "Oculus Touch (Left)": oculusTouch,
+  "Oculus Go Controller": {
+    mapping: 'xr-standard',
+    id: 'oculus-go',
+    buttons: {
+      0: 1,
+      1: 0,
+    },
+    gripTransform: {
+      orientation: [Math.PI * 0.11, 0, 0, 1]
     }
-  };
-}();
-var sqlerp = function () {
-  var temp1 = create$4();
-  var temp2 = create$4();
-  return function (out, a, b, c, d, t) {
-    slerp(temp1, a, d, t);
-    slerp(temp2, b, c, t);
-    slerp(out, temp1, temp2, 2 * t * (1 - t));
-    return out;
-  };
-}();
-var setAxes = function () {
-  var matr = create$2();
-  return function (out, view, right, up) {
-    matr[0] = right[0];
-    matr[3] = right[1];
-    matr[6] = right[2];
-    matr[1] = up[0];
-    matr[4] = up[1];
-    matr[7] = up[2];
-    matr[2] = -view[0];
-    matr[5] = -view[1];
-    matr[8] = -view[2];
-    return normalize$2(out, fromMat3(out, matr));
-  };
-}();
-
-var HEAD_ELBOW_OFFSET_RIGHTHANDED = fromValues$1(0.155, -0.465, -0.15);
-var HEAD_ELBOW_OFFSET_LEFTHANDED = fromValues$1(-0.155, -0.465, -0.15);
-var ELBOW_WRIST_OFFSET = fromValues$1(0, 0, -0.25);
-var WRIST_CONTROLLER_OFFSET = fromValues$1(0, 0, 0.05);
-var ARM_EXTENSION_OFFSET = fromValues$1(-0.08, 0.14, 0.08);
-var ELBOW_BEND_RATIO = 0.4;
-var EXTENSION_RATIO_WEIGHT = 0.4;
-var MIN_ANGULAR_SPEED = 0.61;
-var MIN_ANGLE_DELTA = 0.175;
-var MIN_EXTENSION_COS = 0.12;
-var MAX_EXTENSION_COS = 0.87;
-var RAD_TO_DEG = 180 / Math.PI;
+  },
+  "Windows Mixed Reality (Right)": windowsMixedReality,
+  "Windows Mixed Reality (Left)": windowsMixedReality,
+};
+
+const HEAD_ELBOW_OFFSET_RIGHTHANDED = fromValues$1(0.155, -0.465, -0.15);
+const HEAD_ELBOW_OFFSET_LEFTHANDED = fromValues$1(-0.155, -0.465, -0.15);
+const ELBOW_WRIST_OFFSET = fromValues$1(0, 0, -0.25);
+const WRIST_CONTROLLER_OFFSET = fromValues$1(0, 0, 0.05);
+const ARM_EXTENSION_OFFSET = fromValues$1(-0.08, 0.14, 0.08);
+const ELBOW_BEND_RATIO = 0.4;
+const EXTENSION_RATIO_WEIGHT = 0.4;
+const MIN_ANGULAR_SPEED = 0.61;
+const MIN_ANGLE_DELTA = 0.175;
+const MIN_EXTENSION_COS = 0.12;
+const MAX_EXTENSION_COS = 0.87;
+const RAD_TO_DEG = 180 / Math.PI;
 function eulerFromQuaternion(out, q, order) {
   function clamp(value, min$$1, max$$1) {
-    return value < min$$1 ? min$$1 : value > max$$1 ? max$$1 : value;
+    return (value < min$$1 ? min$$1 : (value > max$$1 ? max$$1 : value));
   }
   var sqx = q[0] * q[0];
   var sqy = q[1] * q[1];
   var sqz = q[2] * q[2];
   var sqw = q[3] * q[3];
-  if (order === 'XYZ') {
-    out[0] = Math.atan2(2 * (q[0] * q[3] - q[1] * q[2]), sqw - sqx - sqy + sqz);
-    out[1] = Math.asin(clamp(2 * (q[0] * q[2] + q[1] * q[3]), -1, 1));
-    out[2] = Math.atan2(2 * (q[2] * q[3] - q[0] * q[1]), sqw + sqx - sqy - sqz);
-  } else if (order === 'YXZ') {
-    out[0] = Math.asin(clamp(2 * (q[0] * q[3] - q[1] * q[2]), -1, 1));
-    out[1] = Math.atan2(2 * (q[0] * q[2] + q[1] * q[3]), sqw - sqx - sqy + sqz);
-    out[2] = Math.atan2(2 * (q[0] * q[1] + q[2] * q[3]), sqw - sqx + sqy - sqz);
-  } else if (order === 'ZXY') {
-    out[0] = Math.asin(clamp(2 * (q[0] * q[3] + q[1] * q[2]), -1, 1));
-    out[1] = Math.atan2(2 * (q[1] * q[3] - q[2] * q[0]), sqw - sqx - sqy + sqz);
-    out[2] = Math.atan2(2 * (q[2] * q[3] - q[0] * q[1]), sqw - sqx + sqy - sqz);
-  } else if (order === 'ZYX') {
-    out[0] = Math.atan2(2 * (q[0] * q[3] + q[2] * q[1]), sqw - sqx - sqy + sqz);
-    out[1] = Math.asin(clamp(2 * (q[1] * q[3] - q[0] * q[2]), -1, 1));
-    out[2] = Math.atan2(2 * (q[0] * q[1] + q[2] * q[3]), sqw + sqx - sqy - sqz);
-  } else if (order === 'YZX') {
-    out[0] = Math.atan2(2 * (q[0] * q[3] - q[2] * q[1]), sqw - sqx + sqy - sqz);
-    out[1] = Math.atan2(2 * (q[1] * q[3] - q[0] * q[2]), sqw + sqx - sqy - sqz);
-    out[2] = Math.asin(clamp(2 * (q[0] * q[1] + q[2] * q[3]), -1, 1));
-  } else if (order === 'XZY') {
-    out[0] = Math.atan2(2 * (q[0] * q[3] + q[1] * q[2]), sqw - sqx + sqy - sqz);
-    out[1] = Math.atan2(2 * (q[0] * q[2] + q[1] * q[3]), sqw + sqx - sqy - sqz);
-    out[2] = Math.asin(clamp(2 * (q[2] * q[3] - q[0] * q[1]), -1, 1));
+  if ( order === 'XYZ' ) {
+    out[0] = Math.atan2( 2 * ( q[0] * q[3] - q[1] * q[2] ), ( sqw - sqx - sqy + sqz ) );
+    out[1] = Math.asin(  clamp( 2 * ( q[0] * q[2] + q[1] * q[3] ), -1, 1 ) );
+    out[2] = Math.atan2( 2 * ( q[2] * q[3] - q[0] * q[1] ), ( sqw + sqx - sqy - sqz ) );
+  } else if ( order ===  'YXZ' ) {
+    out[0] = Math.asin(  clamp( 2 * ( q[0] * q[3] - q[1] * q[2] ), -1, 1 ) );
+    out[1] = Math.atan2( 2 * ( q[0] * q[2] + q[1] * q[3] ), ( sqw - sqx - sqy + sqz ) );
+    out[2] = Math.atan2( 2 * ( q[0] * q[1] + q[2] * q[3] ), ( sqw - sqx + sqy - sqz ) );
+  } else if ( order === 'ZXY' ) {
+    out[0] = Math.asin(  clamp( 2 * ( q[0] * q[3] + q[1] * q[2] ), -1, 1 ) );
+    out[1] = Math.atan2( 2 * ( q[1] * q[3] - q[2] * q[0] ), ( sqw - sqx - sqy + sqz ) );
+    out[2] = Math.atan2( 2 * ( q[2] * q[3] - q[0] * q[1] ), ( sqw - sqx + sqy - sqz ) );
+  } else if ( order === 'ZYX' ) {
+    out[0] = Math.atan2( 2 * ( q[0] * q[3] + q[2] * q[1] ), ( sqw - sqx - sqy + sqz ) );
+    out[1] = Math.asin(  clamp( 2 * ( q[1] * q[3] - q[0] * q[2] ), -1, 1 ) );
+    out[2] = Math.atan2( 2 * ( q[0] * q[1] + q[2] * q[3] ), ( sqw + sqx - sqy - sqz ) );
+  } else if ( order === 'YZX' ) {
+    out[0] = Math.atan2( 2 * ( q[0] * q[3] - q[2] * q[1] ), ( sqw - sqx + sqy - sqz ) );
+    out[1] = Math.atan2( 2 * ( q[1] * q[3] - q[0] * q[2] ), ( sqw + sqx - sqy - sqz ) );
+    out[2] = Math.asin(  clamp( 2 * ( q[0] * q[1] + q[2] * q[3] ), -1, 1 ) );
+  } else if ( order === 'XZY' ) {
+    out[0] = Math.atan2( 2 * ( q[0] * q[3] + q[1] * q[2] ), ( sqw - sqx + sqy - sqz ) );
+    out[1] = Math.atan2( 2 * ( q[0] * q[2] + q[1] * q[3] ), ( sqw + sqx - sqy - sqz ) );
+    out[2] = Math.asin(  clamp( 2 * ( q[2] * q[3] - q[0] * q[1] ), -1, 1 ) );
   } else {
     console.log('No order given for quaternion to euler conversion.');
     return;
   }
 }
-var OrientationArmModel = function () {
-  function OrientationArmModel() {
-    classCallCheck(this, OrientationArmModel);
+class OrientationArmModel {
+  constructor() {
     this.hand = 'right';
     this.headElbowOffset = HEAD_ELBOW_OFFSET_RIGHTHANDED;
     this.controllerQ = create$4();
@@ -5405,115 +5392,196 @@ var OrientationArmModel = function () {
     this.rootQ = create$4();
     this.position = create$1();
   }
-  createClass(OrientationArmModel, [{
-    key: 'setHandedness',
-    value: function setHandedness(hand) {
-      if (this.hand != hand) {
-        this.hand = hand;
-        if (this.hand == 'left') {
-          this.headElbowOffset = HEAD_ELBOW_OFFSET_LEFTHANDED;
+  setHandedness(hand) {
+    if (this.hand != hand) {
+      this.hand = hand;
+      if (this.hand == 'left') {
+        this.headElbowOffset = HEAD_ELBOW_OFFSET_LEFTHANDED;
+      } else {
+        this.headElbowOffset = HEAD_ELBOW_OFFSET_RIGHTHANDED;
+      }
+    }
+  }
+  update(controllerOrientation, headPoseMatrix) {
+    this.time = now$1();
+    if (controllerOrientation) {
+      copy$4(this.lastControllerQ, this.controllerQ);
+      copy$4(this.controllerQ, controllerOrientation);
+    }
+    if (headPoseMatrix) {
+      getTranslation(this.headPos, headPoseMatrix);
+      getRotation(this.headQ, headPoseMatrix);
+    }
+    let headYawQ = this.getHeadYawOrientation_();
+    let angleDelta = this.quatAngle_(this.lastControllerQ, this.controllerQ);
+    let timeDelta = (this.time - this.lastTime) / 1000;
+    let controllerAngularSpeed = angleDelta / timeDelta;
+    if (controllerAngularSpeed > MIN_ANGULAR_SPEED) {
+      slerp(this.rootQ, this.rootQ, headYawQ,
+                 Math.min(angleDelta / MIN_ANGLE_DELTA, 1.0));
+    } else {
+      copy$4(this.rootQ, headYawQ);
+    }
+    let controllerForward = fromValues$1(0, 0, -1.0);
+    transformQuat(controllerForward, controllerForward, this.controllerQ);
+    let controllerDotY = dot(controllerForward, [0, 1, 0]);
+    let extensionRatio = this.clamp_(
+        (controllerDotY - MIN_EXTENSION_COS) / MAX_EXTENSION_COS, 0.0, 1.0);
+    let controllerCameraQ = clone$4(this.rootQ);
+    invert$2(controllerCameraQ, controllerCameraQ);
+    multiply$4(controllerCameraQ, controllerCameraQ, this.controllerQ);
+    let elbowPos = this.elbowPos;
+    copy$1(elbowPos, this.headPos);
+    add$1(elbowPos, elbowPos, this.headElbowOffset);
+    let elbowOffset = clone$1(ARM_EXTENSION_OFFSET);
+    scale$1(elbowOffset, elbowOffset, extensionRatio);
+    add$1(elbowPos, elbowPos, elbowOffset);
+    let totalAngle = this.quatAngle_(controllerCameraQ, create$4());
+    let totalAngleDeg = totalAngle * RAD_TO_DEG;
+    let lerpSuppression = 1 - Math.pow(totalAngleDeg / 180, 4);let elbowRatio = ELBOW_BEND_RATIO;
+    let wristRatio = 1 - ELBOW_BEND_RATIO;
+    let lerpValue = lerpSuppression *
+        (elbowRatio + wristRatio * extensionRatio * EXTENSION_RATIO_WEIGHT);
+    let wristQ = create$4();
+    slerp(wristQ, wristQ, controllerCameraQ, lerpValue);
+    let invWristQ = invert$2(create$4(), wristQ);
+    let elbowQ = clone$4(controllerCameraQ);
+    multiply$4(elbowQ, elbowQ, invWristQ);
+    let wristPos = this.wristPos;
+    copy$1(wristPos, WRIST_CONTROLLER_OFFSET);
+    transformQuat(wristPos, wristPos, wristQ);
+    add$1(wristPos, wristPos, ELBOW_WRIST_OFFSET);
+    transformQuat(wristPos, wristPos, elbowQ);
+    add$1(wristPos, wristPos, elbowPos);
+    let offset = clone$1(ARM_EXTENSION_OFFSET);
+    scale$1(offset, offset, extensionRatio);
+    add$1(this.position, this.wristPos, offset);
+    transformQuat(this.position, this.position, this.rootQ);
+    this.lastTime = this.time;
+  }
+  getPosition() {
+    return this.position;
+  }
+  getHeadYawOrientation_() {
+    let headEuler = create$1();
+    eulerFromQuaternion(headEuler, this.headQ, 'YXZ');
+    let destinationQ = fromEuler(create$4(), 0, headEuler[1] * RAD_TO_DEG, 0);
+    return destinationQ;
+  }
+  clamp_(value, min$$1, max$$1) {
+    return Math.min(Math.max(value, min$$1), max$$1);
+  }
+  quatAngle_(q1, q2) {
+    let vec1 = [0, 0, -1];
+    let vec2 = [0, 0, -1];
+    transformQuat(vec1, vec1, q1);
+    transformQuat(vec2, vec2, q2);
+    return angle(vec1, vec2);
+  }
+}
+
+const PRIVATE$16 = Symbol('@@webxr-polyfill/XRRemappedGamepad');
+const PLACEHOLDER_BUTTON = { pressed: false, touched: false, value: 0.0 };
+Object.freeze(PLACEHOLDER_BUTTON);
+class XRRemappedGamepad {
+  constructor(gamepad, map) {
+    if (!map) {
+      map = {};
+    }
+    let axes = new Array(map.axes ? map.axes.length : gamepad.axes.length);
+    let buttons = new Array(map.buttons ? map.buttons.length : gamepad.buttons.length);
+    let gripTransform = null;
+    if (map.gripTransform) {
+      let orientation = map.gripTransform.orientation || [0, 0, 0, 1];
+      gripTransform = create();
+      fromRotationTranslation(
+        gripTransform,
+        normalize$2(orientation, orientation),
+        map.gripTransform.position || [0, 0, 0]
+      );
+    }
+    let targetRayTransform = null;
+    if (map.targetRayTransform) {
+      let orientation =  map.targetRayTransform.orientation || [0, 0, 0, 1];
+      targetRayTransform = create();
+      fromRotationTranslation(
+        targetRayTransform,
+        normalize$2(orientation, orientation),
+        map.targetRayTransform.position || [0, 0, 0]
+      );
+    }
+    this[PRIVATE$16] = {
+      gamepad,
+      map,
+      id: map.id || gamepad.id,
+      mapping: map.mapping || gamepad.mapping,
+      axes,
+      buttons,
+      gripTransform,
+      targetRayTransform,
+    };
+    this._update();
+  }
+  _update() {
+    let gamepad = this[PRIVATE$16].gamepad;
+    let map = this[PRIVATE$16].map;
+    let axes = this[PRIVATE$16].axes;
+    for (let i = 0; i < axes.length; ++i) {
+      if (map.axes && i in map.axes) {
+        if (map.axes[i] === null) {
+          axes[i] = 0;
         } else {
-          this.headElbowOffset = HEAD_ELBOW_OFFSET_RIGHTHANDED;
+          axes[i] = gamepad.axes[map.axes[i]];
         }
+      } else {
+        axes[i] = gamepad.axes[i];
       }
     }
-  }, {
-    key: 'update',
-    value: function update(controllerOrientation, headPoseMatrix) {
-      this.time = now$1();
-      if (controllerOrientation) {
-        copy$4(this.lastControllerQ, this.controllerQ);
-        copy$4(this.controllerQ, controllerOrientation);
-      }
-      if (headPoseMatrix) {
-        getTranslation(this.headPos, headPoseMatrix);
-        getRotation(this.headQ, headPoseMatrix);
-      }
-      var headYawQ = this.getHeadYawOrientation_();
-      var angleDelta = this.quatAngle_(this.lastControllerQ, this.controllerQ);
-      var timeDelta = (this.time - this.lastTime) / 1000;
-      var controllerAngularSpeed = angleDelta / timeDelta;
-      if (controllerAngularSpeed > MIN_ANGULAR_SPEED) {
-        slerp(this.rootQ, this.rootQ, headYawQ, Math.min(angleDelta / MIN_ANGLE_DELTA, 1.0));
+    let buttons = this[PRIVATE$16].buttons;
+    for (let i = 0; i < buttons.length; ++i) {
+      if (map.buttons && i in map.buttons) {
+        if (map.buttons[i] === null) {
+          buttons[i] = PLACEHOLDER_BUTTON;
+        } else {
+          buttons[i] = gamepad.buttons[map.buttons[i]];
+        }
       } else {
-        copy$4(this.rootQ, headYawQ);
+        buttons[i] = gamepad.buttons[i];
       }
-      var controllerForward = fromValues$1(0, 0, -1.0);
-      transformQuat(controllerForward, controllerForward, this.controllerQ);
-      var controllerDotY = dot(controllerForward, [0, 1, 0]);
-      var extensionRatio = this.clamp_((controllerDotY - MIN_EXTENSION_COS) / MAX_EXTENSION_COS, 0.0, 1.0);
-      var controllerCameraQ = clone$4(this.rootQ);
-      invert$2(controllerCameraQ, controllerCameraQ);
-      multiply$4(controllerCameraQ, controllerCameraQ, this.controllerQ);
-      var elbowPos = this.elbowPos;
-      copy$1(elbowPos, this.headPos);
-      add$1(elbowPos, elbowPos, this.headElbowOffset);
-      var elbowOffset = clone$1(ARM_EXTENSION_OFFSET);
-      scale$1(elbowOffset, elbowOffset, extensionRatio);
-      add$1(elbowPos, elbowPos, elbowOffset);
-      var totalAngle = this.quatAngle_(controllerCameraQ, create$4());
-      var totalAngleDeg = totalAngle * RAD_TO_DEG;
-      var lerpSuppression = 1 - Math.pow(totalAngleDeg / 180, 4);var elbowRatio = ELBOW_BEND_RATIO;
-      var wristRatio = 1 - ELBOW_BEND_RATIO;
-      var lerpValue = lerpSuppression * (elbowRatio + wristRatio * extensionRatio * EXTENSION_RATIO_WEIGHT);
-      var wristQ = create$4();
-      slerp(wristQ, wristQ, controllerCameraQ, lerpValue);
-      var invWristQ = invert$2(create$4(), wristQ);
-      var elbowQ = clone$4(controllerCameraQ);
-      multiply$4(elbowQ, elbowQ, invWristQ);
-      var wristPos = this.wristPos;
-      copy$1(wristPos, WRIST_CONTROLLER_OFFSET);
-      transformQuat(wristPos, wristPos, wristQ);
-      add$1(wristPos, wristPos, ELBOW_WRIST_OFFSET);
-      transformQuat(wristPos, wristPos, elbowQ);
-      add$1(wristPos, wristPos, elbowPos);
-      var offset = clone$1(ARM_EXTENSION_OFFSET);
-      scale$1(offset, offset, extensionRatio);
-      add$1(this.position, this.wristPos, offset);
-      transformQuat(this.position, this.position, this.rootQ);
-      this.lastTime = this.time;
-    }
-  }, {
-    key: 'getPosition',
-    value: function getPosition() {
-      return this.position;
     }
-  }, {
-    key: 'getHeadYawOrientation_',
-    value: function getHeadYawOrientation_() {
-      var headEuler = create$1();
-      eulerFromQuaternion(headEuler, this.headQ, 'YXZ');
-      var destinationQ = fromEuler(create$4(), 0, headEuler[1] * RAD_TO_DEG, 0);
-      return destinationQ;
-    }
-  }, {
-    key: 'clamp_',
-    value: function clamp_(value, min$$1, max$$1) {
-      return Math.min(Math.max(value, min$$1), max$$1);
-    }
-  }, {
-    key: 'quatAngle_',
-    value: function quatAngle_(q1, q2) {
-      var vec1 = [0, 0, -1];
-      var vec2 = [0, 0, -1];
-      transformQuat(vec1, vec1, q1);
-      transformQuat(vec2, vec2, q2);
-      return angle(vec1, vec2);
-    }
-  }]);
-  return OrientationArmModel;
-}();
-
-var GamepadXRInputSource = function () {
-  function GamepadXRInputSource(polyfill) {
-    var primaryButtonIndex = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
-    classCallCheck(this, GamepadXRInputSource);
+  }
+  get id() {
+    return this[PRIVATE$16].id;
+  }
+  get index() {
+    return 0;
+  }
+  get connected() {
+    return this[PRIVATE$16].gamepad.connected;
+  }
+  get timestamp() {
+    return this[PRIVATE$16].gamepad.timestamp;
+  }
+  get mapping() {
+    return this[PRIVATE$16].mapping;
+  }
+  get axes() {
+    return this[PRIVATE$16].axes;
+  }
+  get buttons() {
+    return this[PRIVATE$16].buttons;
+  }
+}
+class GamepadXRInputSource {
+  constructor(polyfill, primaryButtonIndex = 0) {
     this.polyfill = polyfill;
+    this.nativeGamepad = null;
     this.gamepad = null;
     this.inputSource = new XRInputSource(this);
     this.lastPosition = create$1();
     this.emulatedPosition = false;
     this.basePoseMatrix = create();
+    this.outputMatrix = create();
     this.inputPoses = new WeakMap();
     this.primaryButtonIndex = primaryButtonIndex;
     this.primaryActionPressed = false;
@@ -5521,676 +5589,534 @@ var GamepadXRInputSource = function () {
     this.targetRayMode = 'gaze';
     this.armModel = null;
   }
-  createClass(GamepadXRInputSource, [{
-    key: 'updateFromGamepad',
-    value: function updateFromGamepad(gamepad) {
-      this.gamepad = gamepad;
-      this.handedness = gamepad.hand;
-      if (gamepad.pose) {
-        this.targetRayMode = 'tracked-pointer';
-        this.emulatedPosition = !gamepad.pose.hasPosition;
-      } else if (gamepad.hand === '') {
-        this.targetRayMode = 'gaze';
-        this.emulatedPosition = false;
+  updateFromGamepad(gamepad) {
+    if (this.nativeGamepad !== gamepad) {
+      this.nativeGamepad = gamepad;
+      if (gamepad) {
+        this.gamepad = new XRRemappedGamepad(gamepad, GamepadMappings[gamepad.id]);
+      } else {
+        this.gamepad = null;
       }
     }
-  }, {
-    key: 'updateBasePoseMatrix',
-    value: function updateBasePoseMatrix() {
-      if (this.gamepad && this.gamepad.pose) {
-        var pose = this.gamepad.pose;
-        var position = pose.position;
-        var orientation = pose.orientation;
-        if (!position && !orientation) {
-          return;
-        }
-        if (!position) {
-          if (!pose.hasPosition) {
-            if (!this.armModel) {
-              this.armModel = new OrientationArmModel();
-            }
-            this.armModel.setHandedness(this.gamepad.hand);
-            this.armModel.update(orientation, this.polyfill.getBasePoseMatrix());
-            position = this.armModel.getPosition();
-          } else {
-            position = this.lastPosition;
+    this.handedness = gamepad.hand;
+    if (this.gamepad) {
+      this.gamepad._update();
+    }
+    if (gamepad.pose) {
+      this.targetRayMode = 'tracked-pointer';
+      this.emulatedPosition = !gamepad.pose.hasPosition;
+    } else if (gamepad.hand === '') {
+      this.targetRayMode = 'gaze';
+      this.emulatedPosition = false;
+    }
+  }
+  updateBasePoseMatrix() {
+    if (this.nativeGamepad && this.nativeGamepad.pose) {
+      let pose = this.nativeGamepad.pose;
+      let position = pose.position;
+      let orientation = pose.orientation;
+      if (!position && !orientation) {
+        return;
+      }
+      if (!position) {
+        if (!pose.hasPosition) {
+          if (!this.armModel) {
+            this.armModel = new OrientationArmModel();
           }
+          this.armModel.setHandedness(this.nativeGamepad.hand);
+          this.armModel.update(orientation, this.polyfill.getBasePoseMatrix());
+          position = this.armModel.getPosition();
         } else {
-          this.lastPosition[0] = position[0];
-          this.lastPosition[1] = position[1];
-          this.lastPosition[2] = position[2];
+          position = this.lastPosition;
         }
-        fromRotationTranslation(this.basePoseMatrix, orientation, position);
       } else {
-        copy(this.basePoseMatrix, this.polyfill.getBasePoseMatrix());
+        this.lastPosition[0] = position[0];
+        this.lastPosition[1] = position[1];
+        this.lastPosition[2] = position[2];
       }
-      return this.basePoseMatrix;
+      fromRotationTranslation(this.basePoseMatrix, orientation, position);
+    } else {
+      copy(this.basePoseMatrix, this.polyfill.getBasePoseMatrix());
     }
-  }, {
-    key: 'getXRInputPose',
-    value: function getXRInputPose(coordinateSystem) {
-      this.updateBasePoseMatrix();
-      var inputPose = this.inputPoses.get(coordinateSystem);
-      if (!inputPose) {
-        inputPose = new XRInputPose(this, this.gamepad && this.gamepad.pose);
-        this.inputPoses.set(coordinateSystem, inputPose);
-      }
-      var rayTransformMatrix = new Float32Array(16);
-      coordinateSystem.transformBasePoseMatrix(rayTransformMatrix, this.basePoseMatrix);
-      inputPose.targetRay = poseMatrixToXRRay(rayTransformMatrix);
-      if (inputPose.gripMatrix) {
-        coordinateSystem.transformBasePoseMatrix(inputPose.gripMatrix, this.basePoseMatrix);
-      }
-      return inputPose;
+    return this.basePoseMatrix;
+  }
+  getXRPose(coordinateSystem, poseType) {
+    this.updateBasePoseMatrix();
+    switch(poseType) {
+      case "target-ray":
+        coordinateSystem.transformBasePoseMatrix(this.outputMatrix, this.basePoseMatrix);
+        if (this.gamepad && this.gamepad[PRIVATE$16].targetRayTransform) {
+          multiply(this.outputMatrix, this.outputMatrix, this.gamepad[PRIVATE$16].targetRayTransform);
+        }
+        break;
+      case "grip":
+        if (!this.nativeGamepad || !this.nativeGamepad.pose) {
+          return null;
+        }
+        coordinateSystem.transformBasePoseMatrix(this.outputMatrix, this.basePoseMatrix);
+        if (this.gamepad && this.gamepad[PRIVATE$16].gripTransform) {
+          multiply(this.outputMatrix, this.outputMatrix, this.gamepad[PRIVATE$16].gripTransform);
+        }
+        break;
+      default:
+        return null;
     }
-  }]);
-  return GamepadXRInputSource;
-}();
+    coordinateSystem._adjustForOriginOffset(this.outputMatrix);
+    return new XRPose(new XRRigidTransform(this.outputMatrix), this.emulatedPosition);
+  }
+}
 
-var EXTRA_PRESENTATION_ATTRIBUTES = {
-  highRefreshRate: true
+const TEST_ENV = "production" === 'test';
+const EXTRA_PRESENTATION_ATTRIBUTES = {
+  highRefreshRate: true,
 };
-var PRIMARY_BUTTON_MAP = {
+const PRIMARY_BUTTON_MAP = {
   oculus: 1,
-  openvr: 1
-};
-var CAN_USE_GAMEPAD = _global.navigator && 'getGamepads' in _global.navigator;
-var SESSION_ID = 0;
-var Session = function Session(sessionOptions) {
-  classCallCheck(this, Session);
-  this.outputContext = sessionOptions.outputContext;
-  this.immersive = sessionOptions.immersive;
-  this.ended = null;
-  this.baseLayer = null;
-  this.id = ++SESSION_ID;
-  this.modifiedCanvasLayer = false;
-};
-
-var WebVRDevice = function (_PolyfilledXRDevice) {
-  inherits(WebVRDevice, _PolyfilledXRDevice);
-  function WebVRDevice(global, display) {
-    classCallCheck(this, WebVRDevice);
-    var canPresent = display.capabilities.canPresent;
-    var _this = possibleConstructorReturn(this, (WebVRDevice.__proto__ || Object.getPrototypeOf(WebVRDevice)).call(this, global));
-    _this.display = display;
-    _this.frame = new global.VRFrameData();
-    _this.sessions = new Map();
-    _this.immersiveSession = null;
-    _this.canPresent = canPresent;
-    _this.baseModelMatrix = create();
-    _this.gamepadInputSources = {};
-    _this.tempVec3 = new Float32Array(3);
-    _this.onVRDisplayPresentChange = _this.onVRDisplayPresentChange.bind(_this);
-    global.window.addEventListener('vrdisplaypresentchange', _this.onVRDisplayPresentChange);
-    return _this;
-  }
-  createClass(WebVRDevice, [{
-    key: 'onBaseLayerSet',
-    value: function onBaseLayerSet(sessionId, layer) {
-      var _this2 = this;
-      var session = this.sessions.get(sessionId);
-      var canvas = layer.context.canvas;
-      if (session.immersive) {
-        var left = this.display.getEyeParameters('left');
-        var right = this.display.getEyeParameters('right');
-        canvas.width = Math.max(left.renderWidth, right.renderWidth) * 2;
-        canvas.height = Math.max(left.renderHeight, right.renderHeight);
-        this.display.requestPresent([{
+  openvr: 1,
+  'spatial controller (spatial interaction source)': 1
+};
+let SESSION_ID = 0;
+class Session {
+  constructor(mode, polyfillOptions={}) {
+    this.mode = mode;
+    this.outputContext = null;
+    this.immersive = mode == 'immersive-vr' || mode == 'immersive-ar';
+    this.ended = null;
+    this.baseLayer = null;
+    this.inlineVerticalFieldOfView = Math.PI * 0.5;
+    this.id = ++SESSION_ID;
+    this.modifiedCanvasLayer = false;
+    if (this.outputContext && !TEST_ENV) {
+      const renderContextType = polyfillOptions.renderContextType || '2d';
+      this.renderContext = this.outputContext.canvas.getContext(renderContextType);
+    }
+  }
+}
+class WebVRDevice extends XRDevice {
+  constructor(global, display) {
+    const { canPresent } = display.capabilities;
+    super(global);
+    this.display = display;
+    this.frame = new global.VRFrameData();
+    this.sessions = new Map();
+    this.immersiveSession = null;
+    this.canPresent = canPresent;
+    this.baseModelMatrix = create();
+    this.gamepadInputSources = {};
+    this.tempVec3 = new Float32Array(3);
+    this.onVRDisplayPresentChange = this.onVRDisplayPresentChange.bind(this);
+    global.window.addEventListener('vrdisplaypresentchange', this.onVRDisplayPresentChange);
+    this.CAN_USE_GAMEPAD = global.navigator && ('getGamepads' in global.navigator);
+    this.HAS_BITMAP_SUPPORT = isImageBitmapSupported(global);
+  }
+  get depthNear() { return this.display.depthNear; }
+  set depthNear(val) { this.display.depthNear = val; }
+  get depthFar() { return this.display.depthFar; }
+  set depthFar(val) { this.display.depthFar = val; }
+  onBaseLayerSet(sessionId, layer) {
+    const session = this.sessions.get(sessionId);
+    const canvas = layer.context.canvas;
+    if (session.immersive) {
+      const left = this.display.getEyeParameters('left');
+      const right = this.display.getEyeParameters('right');
+      canvas.width = Math.max(left.renderWidth, right.renderWidth) * 2;
+      canvas.height = Math.max(left.renderHeight, right.renderHeight);
+      this.display.requestPresent([{
           source: canvas, attributes: EXTRA_PRESENTATION_ATTRIBUTES
-        }]).then(function () {
-          if ("production" !== 'test' && !_this2.global.document.body.contains(canvas)) {
-            session.modifiedCanvasLayer = true;
-            _this2.global.document.body.appendChild(canvas);
-            applyCanvasStylesForMinimalRendering(canvas);
-          }
-          session.baseLayer = layer;
-        });
-      }
-      else if (session.outputContext) {
-          session.baseLayer = layer;
+        }]).then(() => {
+        if (!TEST_ENV && !this.global.document.body.contains(canvas)) {
+          session.modifiedCanvasLayer = true;
+          this.global.document.body.appendChild(canvas);
+          applyCanvasStylesForMinimalRendering(canvas);
         }
+        session.baseLayer = layer;
+      });
     }
-  }, {
-    key: 'supportsSession',
-    value: function supportsSession() {
-      var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
-      if (options.immersive === true && this.canPresent === false) {
-        return false;
-      }
-      return true;
+    else {
+      session.baseLayer = layer;
     }
-  }, {
-    key: 'requestSession',
-    value: function requestSession() {
-      var $args = arguments;return new Promise(function ($return, $error) {
-        var options, canvas, ctx, session;
-        options = $args.length > 0 && $args[0] !== undefined ? $args[0] : {};
-        if (!this.supportsSession(options)) {
-          return $return(Promise.reject());
-        }
-        if (options.immersive) {
-          canvas = this.global.document.createElement('canvas');
-          {
-            ctx = canvas.getContext('webgl');
-          }
-          return Promise.resolve(this.display.requestPresent([{
-            source: canvas, attributes: EXTRA_PRESENTATION_ATTRIBUTES }])).then(function ($await_2) {
-            try {
-              return $If_1.call(this);
-            } catch ($boundEx) {
-              return $error($boundEx);
-            }
-          }.bind(this), $error);
-        }
-        function $If_1() {
-          session = new Session(options);
-          this.sessions.set(session.id, session);
-          if (options.immersive) {
-            this.immersiveSession = session;
-            this.dispatchEvent('@@webxr-polyfill/vr-present-start', session.id);
-          }
-          return $return(Promise.resolve(session.id));
-        }
-        return $If_1.call(this);
-      }.bind(this));
+  }
+  onInlineVerticalFieldOfViewSet(sessionId, value) {
+    const session = this.sessions.get(sessionId);
+    session.inlineVerticalFieldOfView = value;
+  }
+  supportsSession(mode) {
+    if (XRSessionModes.indexOf(mode) == -1) {
+      throw new TypeError(
+          `The provided value '${mode}' is not a valid enum value of type XRSessionMode`);
     }
-  }, {
-    key: 'requestAnimationFrame',
-    value: function requestAnimationFrame(callback) {
-      return this.display.requestAnimationFrame(callback);
+    if (mode == 'immersive-ar') {
+      return false;
     }
-  }, {
-    key: 'getPrimaryButtonIndex',
-    value: function getPrimaryButtonIndex(gamepad) {
-      var primaryButton = 0;
-      var name = gamepad.id.toLowerCase();
-      for (var key in PRIMARY_BUTTON_MAP) {
-        if (name.includes(key)) {
-          primaryButton = PRIMARY_BUTTON_MAP[key];
-          break;
-        }
+    if (mode == 'immersive-vr' && this.canPresent === false) {
+      return false;
+    }
+    return true;
+  }
+  async requestSession(mode) {
+    if (!this.supportsSession(mode)) {
+      return Promise.reject();
+    }
+    let immersive = mode == 'immersive-vr';
+    if (immersive) {
+      const canvas = this.global.document.createElement('canvas');
+      if (!TEST_ENV) {
+        const ctx = canvas.getContext('webgl');
       }
-      return Math.min(primaryButton, gamepad.buttons.length - 1);
+      await this.display.requestPresent([{
+          source: canvas, attributes: EXTRA_PRESENTATION_ATTRIBUTES }]);
     }
-  }, {
-    key: 'onFrameStart',
-    value: function onFrameStart(sessionId) {
-      this.display.getFrameData(this.frame);
-      var session = this.sessions.get(sessionId);
-      if (session.immersive && CAN_USE_GAMEPAD) {
-        var prevInputSources = this.gamepadInputSources;
-        this.gamepadInputSources = {};
-        var gamepads = _global.navigator.getGamepads();
-        for (var i = 0; i < gamepads.length; ++i) {
-          var gamepad = gamepads[i];
-          if (gamepad && gamepad.displayId === this.display.displayId) {
-            var inputSourceImpl = prevInputSources[i];
-            if (!inputSourceImpl) {
-              inputSourceImpl = new GamepadXRInputSource(this, this.getPrimaryButtonIndex(gamepad));
-            }
-            inputSourceImpl.updateFromGamepad(gamepad);
-            this.gamepadInputSources[i] = inputSourceImpl;
-            if (inputSourceImpl.primaryButtonIndex != -1) {
-              var primaryActionPressed = gamepad.buttons[inputSourceImpl.primaryButtonIndex].pressed;
-              if (primaryActionPressed && !inputSourceImpl.primaryActionPressed) {
-                this.dispatchEvent('@@webxr-polyfill/input-select-start', { sessionId: session.id, inputSource: inputSourceImpl.inputSource });
-              } else if (!primaryActionPressed && inputSourceImpl.primaryActionPressed) {
-                this.dispatchEvent('@@webxr-polyfill/input-select-end', { sessionId: session.id, inputSource: inputSourceImpl.inputSource });
-              }
-              inputSourceImpl.primaryActionPressed = primaryActionPressed;
-            }
-          }
-        }
+    const session = new Session(mode, {
+      renderContextType: this.HAS_BITMAP_SUPPORT ? 'bitmaprenderer' : '2d'
+    });
+    this.sessions.set(session.id, session);
+    if (immersive) {
+      this.immersiveSession = session;
+      this.dispatchEvent('@@webxr-polyfill/vr-present-start', session.id);
+    }
+    return Promise.resolve(session.id);
+  }
+  requestAnimationFrame(callback) {
+    return this.display.requestAnimationFrame(callback);
+  }
+  getPrimaryButtonIndex(gamepad) {
+    let primaryButton = 0;
+    let name = gamepad.id.toLowerCase();
+    for (let key in PRIMARY_BUTTON_MAP) {
+      if (name.includes(key)) {
+        primaryButton = PRIMARY_BUTTON_MAP[key];
+        break;
       }
-      if (session.outputContext && !session.immersive) {
-        var outputCanvas = session.outputContext.canvas;
-        var oWidth = outputCanvas.offsetWidth;
-        var oHeight = outputCanvas.offsetHeight;
-        if (outputCanvas.width != oWidth) {
-          outputCanvas.width = oWidth;
-        }
-        if (outputCanvas.height != oHeight) {
-          outputCanvas.height = oHeight;
-        }
-        var canvas = session.baseLayer.context.canvas;
-        if (!this.immersiveSession || canvas !== this.immersiveSession.baseLayer.context.canvas) {
-          if (canvas.width != oWidth) {
-            canvas.width = oWidth;
+    }
+    return Math.min(primaryButton, gamepad.buttons.length - 1);
+  }
+  onFrameStart(sessionId) {
+    this.display.getFrameData(this.frame);
+    const session = this.sessions.get(sessionId);
+    if (session.immersive && this.CAN_USE_GAMEPAD) {
+      let prevInputSources = this.gamepadInputSources;
+      this.gamepadInputSources = {};
+      let gamepads = this.global.navigator.getGamepads();
+      for (let i = 0; i < gamepads.length; ++i) {
+        let gamepad = gamepads[i];
+        if (gamepad && gamepad.displayId > 0) {
+          let inputSourceImpl = prevInputSources[i];
+          if (!inputSourceImpl) {
+            inputSourceImpl = new GamepadXRInputSource(this, this.getPrimaryButtonIndex(gamepad));
           }
-          if (canvas.height != oHeight) {
-            canvas.height = oHeight;
+          inputSourceImpl.updateFromGamepad(gamepad);
+          this.gamepadInputSources[i] = inputSourceImpl;
+          if (inputSourceImpl.primaryButtonIndex != -1) {
+            let primaryActionPressed = gamepad.buttons[inputSourceImpl.primaryButtonIndex].pressed;
+            if (primaryActionPressed && !inputSourceImpl.primaryActionPressed) {
+              this.dispatchEvent('@@webxr-polyfill/input-select-start', { sessionId: session.id, inputSource: inputSourceImpl.inputSource });
+            } else if (!primaryActionPressed && inputSourceImpl.primaryActionPressed) {
+              this.dispatchEvent('@@webxr-polyfill/input-select-end', { sessionId: session.id, inputSource: inputSourceImpl.inputSource });
+            }
+            inputSourceImpl.primaryActionPressed = primaryActionPressed;
           }
-          perspective(this.frame.leftProjectionMatrix, Math.PI * 0.4, oWidth / oHeight, this.depthNear, this.depthFar);
         }
       }
     }
-  }, {
-    key: 'onFrameEnd',
-    value: function onFrameEnd(sessionId) {
-      var session = this.sessions.get(sessionId);
-      if (session.ended || !session.baseLayer) {
-        return;
-      }
-      if (session.outputContext && !(session.immersive && !this.display.capabilities.hasExternalDisplay)) {
-        var mirroring = session.immersive && this.display.capabilities.hasExternalDisplay;
-        var canvas = session.baseLayer.context.canvas;
-        var iWidth = mirroring ? canvas.width / 2 : canvas.width;
-        var iHeight = canvas.height;
-        {
-          var outputCanvas = session.outputContext.canvas;
-          var outputContext = outputCanvas.getContext('2d');
-          var oWidth = outputCanvas.width;
-          var oHeight = outputCanvas.height;
-          outputContext.drawImage(canvas, 0, 0, iWidth, iHeight, 0, 0, oWidth, oHeight);
-        }
-      }
-      if (session.immersive && session.baseLayer) {
-        this.display.submitFrame();
-      }
+    if (TEST_ENV) {
+      return;
     }
-  }, {
-    key: 'cancelAnimationFrame',
-    value: function cancelAnimationFrame(handle) {
-      this.display.cancelAnimationFrame(handle);
+    if (!session.immersive && session.baseLayer) {
+      const canvas = session.baseLayer.context.canvas;
+      perspective(this.frame.leftProjectionMatrix, session.inlineVerticalFieldOfView,
+          canvas.width/canvas.height, this.depthNear, this.depthFar);
     }
-  }, {
-    key: 'endSession',
-    value: function endSession(sessionId) {
-      return new Promise(function ($return, $error) {
-        var session = this.sessions.get(sessionId);
-        if (session.ended) {
-          return $return();
-        }
-        if (session.immersive) {
-          return $return(this.display.exitPresent());
+  }
+  onFrameEnd(sessionId) {
+    const session = this.sessions.get(sessionId);
+    if (session.ended || !session.baseLayer) {
+      return;
+    }
+    if (session.outputContext &&
+        !(session.immersive && !this.display.capabilities.hasExternalDisplay)) {
+      const mirroring =
+        session.immersive && this.display.capabilities.hasExternalDisplay;
+      const iCanvas = session.baseLayer.context.canvas;
+      const iWidth = mirroring ? iCanvas.width / 2 : iCanvas.width;
+      const iHeight = iCanvas.height;
+      if (!TEST_ENV) {
+        const oCanvas = session.outputContext.canvas;
+        const oWidth = oCanvas.width;
+        const oHeight = oCanvas.height;
+        const renderContext = session.renderContext;
+        if (this.HAS_BITMAP_SUPPORT) {
+          if (iCanvas.transferToImageBitmap) {
+            renderContext.transferFromImageBitmap(iCanvas.transferToImageBitmap());
+          }
+          else {
+            this.global.createImageBitmap(iCanvas, 0, 0, iWidth, iHeight, {
+              resizeWidth: oWidth,
+              resizeHeight: oHeight,
+            }).then(bitmap => renderContext.transferFromImageBitmap(bitmap));
+          }
         } else {
-          session.ended = true;
+          renderContext.drawImage(iCanvas, 0, 0, iWidth, iHeight,
+                                           0, 0, oWidth, oHeight);
         }
-        return $return();
-      }.bind(this));
-    }
-  }, {
-    key: 'requestStageBounds',
-    value: function requestStageBounds() {
-      if (this.display.stageParameters) {
-        var width = this.display.stageParameters.sizeX;
-        var depth = this.display.stageParameters.sizeZ;
-        var data = [];
-        data.push(-width / 2);
-        data.push(-depth / 2);
-        data.push(width / 2);
-        data.push(-depth / 2);
-        data.push(width / 2);
-        data.push(depth / 2);
-        data.push(-width / 2);
-        data.push(depth / 2);
-        return data;
       }
-      return null;
     }
-  }, {
-    key: 'requestFrameOfReferenceTransform',
-    value: function requestFrameOfReferenceTransform(type, options) {
-      return new Promise(function ($return, $error) {
-        if (type === 'stage' && this.display.stageParameters && this.display.stageParameters.sittingToStandingTransform) {
-          return $return(this.display.stageParameters.sittingToStandingTransform);
-        }
-        return $return();
-      }.bind(this));
+    if (session.immersive && session.baseLayer) {
+      this.display.submitFrame();
     }
-  }, {
-    key: 'getProjectionMatrix',
-    value: function getProjectionMatrix(eye) {
-      if (eye === 'left') {
-        return this.frame.leftProjectionMatrix;
-      } else if (eye === 'right') {
-        return this.frame.rightProjectionMatrix;
-      } else {
-        throw new Error('eye must be of type \'left\' or \'right\'');
-      }
+  }
+  cancelAnimationFrame(handle) {
+    this.display.cancelAnimationFrame(handle);
+  }
+  async endSession(sessionId) {
+    const session = this.sessions.get(sessionId);
+    if (session.ended) {
+      return;
     }
-  }, {
-    key: 'getViewport',
-    value: function getViewport(sessionId, eye, layer, target) {
-      var session = this.sessions.get(sessionId);
-      var _layer$context$canvas = layer.context.canvas,
-          width = _layer$context$canvas.width,
-          height = _layer$context$canvas.height;
-      if (!session.immersive) {
-        target.x = target.y = 0;
-        target.width = width;
-        target.height = height;
-        return true;
-      }
-      if (eye === 'left') {
-        target.x = 0;
-      } else if (eye === 'right') {
-        target.x = width / 2;
-      } else {
-        return false;
-      }
-      target.y = 0;
-      target.width = width / 2;
+    if (session.immersive) {
+      return this.display.exitPresent();
+    } else {
+      session.ended = true;
+    }
+  }
+  requestStageBounds() {
+    if (this.display.stageParameters) {
+      const width = this.display.stageParameters.sizeX;
+      const depth = this.display.stageParameters.sizeZ;
+      const data = [];
+      data.push(-width / 2);
+      data.push(-depth / 2);
+      data.push(width / 2);
+      data.push(-depth / 2);
+      data.push(width / 2);
+      data.push(depth / 2);
+      data.push(-width / 2);
+      data.push(depth / 2);
+      return data;
+    }
+    return null;
+  }
+  async requestFrameOfReferenceTransform(type, options) {
+    if (type === 'stage' && this.display.stageParameters &&
+                            this.display.stageParameters.sittingToStandingTransform) {
+      return this.display.stageParameters.sittingToStandingTransform;
+    }
+  }
+  getProjectionMatrix(eye) {
+    if (eye === 'left') {
+      return this.frame.leftProjectionMatrix;
+    } else if (eye === 'right') {
+      return this.frame.rightProjectionMatrix;
+    } else if (eye === 'none') {
+      return this.frame.leftProjectionMatrix;
+    } else {
+      throw new Error(`eye must be of type 'left' or 'right'`);
+    }
+  }
+  getViewport(sessionId, eye, layer, target) {
+    const session = this.sessions.get(sessionId);
+    const { width, height } = layer.context.canvas;
+    if (!session.immersive) {
+      target.x = target.y = 0;
+      target.width = width;
       target.height = height;
       return true;
     }
-  }, {
-    key: 'getBasePoseMatrix',
-    value: function getBasePoseMatrix() {
-      var _frame$pose = this.frame.pose,
-          position = _frame$pose.position,
-          orientation = _frame$pose.orientation;
-      if (!position && !orientation) {
-        return this.baseModelMatrix;
-      }
-      if (!position) {
-        position = this.tempVec3;
-        position[0] = position[1] = position[2] = 0;
-      }
-      fromRotationTranslation(this.baseModelMatrix, orientation, position);
+    if (eye === 'left') {
+      target.x = 0;
+    } else if (eye === 'right') {
+      target.x = width / 2;
+    } else {
+      return false;
+    }
+    target.y = 0;
+    target.width = width / 2;
+    target.height = height;
+    return true;
+  }
+  getBasePoseMatrix() {
+    let { position, orientation } = this.frame.pose;
+    if (!position && !orientation) {
       return this.baseModelMatrix;
     }
-  }, {
-    key: 'getBaseViewMatrix',
-    value: function getBaseViewMatrix(eye) {
-      if (eye === 'left') {
-        return this.frame.leftViewMatrix;
-      } else if (eye === 'right') {
-        return this.frame.rightViewMatrix;
-      } else {
-        throw new Error('eye must be of type \'left\' or \'right\'');
-      }
+    if (!position) {
+      position = this.tempVec3;
+      position[0] = position[1] = position[2] = 0;
     }
-  }, {
-    key: 'getInputSources',
-    value: function getInputSources() {
-      var inputSources = [];
-      for (var i in this.gamepadInputSources) {
-        inputSources.push(this.gamepadInputSources[i].inputSource);
-      }
-      return inputSources;
+    fromRotationTranslation(this.baseModelMatrix, orientation, position);
+    return this.baseModelMatrix;
+  }
+  getBaseViewMatrix(eye) {
+    if (eye === 'left') {
+      return this.frame.leftViewMatrix;
+    } else if (eye === 'right') {
+      return this.frame.rightViewMatrix;
+    } else {
+      throw new Error(`eye must be of type 'left' or 'right'`);
     }
-  }, {
-    key: 'getInputPose',
-    value: function getInputPose(inputSource, coordinateSystem) {
-      if (!coordinateSystem) {
-        return null;
-      }
-      for (var i in this.gamepadInputSources) {
-        var inputSourceImpl = this.gamepadInputSources[i];
-        if (inputSourceImpl.inputSource === inputSource) {
-          return inputSourceImpl.getXRInputPose(coordinateSystem);
-        }
-      }
+  }
+  getInputSources() {
+    let inputSources = [];
+    for (let i in this.gamepadInputSources) {
+      inputSources.push(this.gamepadInputSources[i].inputSource);
+    }
+    return inputSources;
+  }
+  getInputPose(inputSource, coordinateSystem, poseType) {
+    if (!coordinateSystem) {
       return null;
     }
-  }, {
-    key: 'onWindowResize',
-    value: function onWindowResize() {}
-  }, {
-    key: 'onVRDisplayPresentChange',
-    value: function onVRDisplayPresentChange(e) {
-      var _this3 = this;
-      if (!this.display.isPresenting) {
-        this.sessions.forEach(function (session) {
-          if (session.immersive && !session.ended) {
-            if (session.modifiedCanvasLayer) {
-              var canvas = session.baseLayer.context.canvas;
-              document.body.removeChild(canvas);
-              canvas.setAttribute('style', '');
-            }
-            if (_this3.immersiveSession === session) {
-              _this3.immersiveSession = null;
-            }
-            _this3.dispatchEvent('@@webxr-polyfill/vr-present-end', session.id);
-          }
-        });
+    for (let i in this.gamepadInputSources) {
+      let inputSourceImpl = this.gamepadInputSources[i];
+      if (inputSourceImpl.inputSource === inputSource) {
+        return inputSourceImpl.getXRPose(coordinateSystem, poseType);
       }
     }
-  }, {
-    key: 'depthNear',
-    get: function get$$1() {
-      return this.display.depthNear;
-    }
-    ,
-    set: function set$$1(val) {
-      this.display.depthNear = val;
-    }
-  }, {
-    key: 'depthFar',
-    get: function get$$1() {
-      return this.display.depthFar;
-    }
-    ,
-    set: function set$$1(val) {
-      this.display.depthFar = val;
+    return null;
+  }
+  onWindowResize() {
+  }
+  onVRDisplayPresentChange(e) {
+    if (!this.display.isPresenting) {
+      this.sessions.forEach(session => {
+        if (session.immersive && !session.ended) {
+          if (session.modifiedCanvasLayer) {
+            const canvas = session.baseLayer.context.canvas;
+            document.body.removeChild(canvas);
+            canvas.setAttribute('style', '');
+          }
+          if (this.immersiveSession === session) {
+            this.immersiveSession = null;
+          }
+          this.dispatchEvent('@@webxr-polyfill/vr-present-end', session.id);
+        }
+      });
     }
-  }]);
-  return WebVRDevice;
-}(PolyfilledXRDevice);
-
-var CardboardXRDevice = function (_WebVRDevice) {
-  inherits(CardboardXRDevice, _WebVRDevice);
-  function CardboardXRDevice(global) {
-    classCallCheck(this, CardboardXRDevice);
-    var display = new CardboardVRDisplay();
-    var _this = possibleConstructorReturn(this, (CardboardXRDevice.__proto__ || Object.getPrototypeOf(CardboardXRDevice)).call(this, global, display));
-    _this.display = display;
-    _this.frame = {
+  }
+}
+
+class CardboardXRDevice extends WebVRDevice {
+  constructor(global, cardboardConfig) {
+    const display = new CardboardVRDisplay(cardboardConfig || {});
+    super(global, display);
+    this.display = display;
+    this.frame = {
       rightViewMatrix: new Float32Array(16),
       leftViewMatrix: new Float32Array(16),
       rightProjectionMatrix: new Float32Array(16),
       leftProjectionMatrix: new Float32Array(16),
       pose: null,
-      timestamp: null
+      timestamp: null,
     };
-    return _this;
-  }
-  return CardboardXRDevice;
-}(WebVRDevice);
-
-var getXRDevice = function getXRDevice(global) {
-  return new Promise(function ($return, $error) {
-    var device;
-    device = null;
-    if ('xr' in global.navigator) {
-      var $Try_1_Post = function () {
-        try {
-          return $If_3.call(this);
-        } catch ($boundEx) {
-          return $error($boundEx);
-        }
-      }.bind(this);var $Try_1_Catch = function (e) {
-        try {
-          return $Try_1_Post();
-        } catch ($boundEx) {
-          return $error($boundEx);
-        }
-      }.bind(this);
-      try {
-        return Promise.resolve(global.navigator.xr.requestDevice()).then(function ($await_6) {
-          try {
-            device = $await_6;
-            return $Try_1_Post();
-          } catch ($boundEx) {
-            return $Try_1_Catch($boundEx);
-          }
-        }.bind(this), $Try_1_Catch);
-      } catch (e) {
-        $Try_1_Catch(e);
-      }
-    }
-    function $If_3() {
-      return $return(device);
-    }
-    return $If_3.call(this);
-  }.bind(this));
-};
-var getVRDisplay = function getVRDisplay(global) {
-  return new Promise(function ($return, $error) {
-    var device, displays;
-    device = null;
-    if ('getVRDisplays' in global.navigator) {
-      var $Try_2_Post = function () {
-        try {
-          return $If_4.call(this);
-        } catch ($boundEx) {
-          return $error($boundEx);
-        }
-      }.bind(this);var $Try_2_Catch = function (e) {
-        try {
-          return $Try_2_Post();
-        } catch ($boundEx) {
-          return $error($boundEx);
-        }
-      }.bind(this);
-      try {
-        return Promise.resolve(global.navigator.getVRDisplays()).then(function ($await_7) {
-          try {
-            displays = $await_7;
-            if (displays && displays.length) {
-              device = new WebVRDevice(global, displays[0]);
-            }
-            return $Try_2_Post();
-          } catch ($boundEx) {
-            return $Try_2_Catch($boundEx);
-          }
-        }.bind(this), $Try_2_Catch);
-      } catch (e) {
-        $Try_2_Catch(e);
+  }
+}
+
+const getWebVRDevice = async function (global) {
+  let device = null;
+  if ('getVRDisplays' in global.navigator) {
+    try {
+      const displays = await global.navigator.getVRDisplays();
+      if (displays && displays.length) {
+        device = new WebVRDevice(global, displays[0]);
       }
-    }
-    function $If_4() {
-      return $return(device);
-    }
-    return $If_4.call(this);
-  }.bind(this));
+    } catch (e) {}
+  }
+  return device;
 };
-var requestDevice = function requestDevice(global, config) {
-  return new Promise(function ($return, $error) {
-    var device;
-    return Promise.resolve(getXRDevice(global)).then(function ($await_8) {
-      try {
-        device = $await_8;
-        if (device) {
-          return $return(device);
-        }
-        if (config.webvr) {
-          return Promise.resolve(getVRDisplay(global)).then(function ($await_9) {
-            try {
-              device = $await_9;
-              if (device) {
-                return $return(new XRDevice(device));
-              }
-              return $If_5.call(this);
-            } catch ($boundEx) {
-              return $error($boundEx);
-            }
-          }.bind(this), $error);
-        }
-        function $If_5() {
-          if (config.cardboard && isMobile(global)) {
-            if (!global.VRFrameData) {
-              global.VRFrameData = function () {
-                this.rightViewMatrix = new Float32Array(16);
-                this.leftViewMatrix = new Float32Array(16);
-                this.rightProjectionMatrix = new Float32Array(16);
-                this.leftProjectionMatrix = new Float32Array(16);
-                this.pose = null;
-              };
-            }
-            return $return(new XRDevice(new CardboardXRDevice(global)));
-          }
-          return $return(null);
-        }
-        return $If_5.call(this);
-      } catch ($boundEx) {
-        return $error($boundEx);
-      }
-    }.bind(this), $error);
-  }.bind(this));
+const requestXRDevice = async function (global, config) {
+  if (config.webvr) {
+    let xr = await getWebVRDevice(global);
+    if (xr) {
+      return xr;
+    }
+  }
+  if (!global.VRFrameData) {
+    global.VRFrameData = function () {
+      this.rightViewMatrix = new Float32Array(16);
+      this.leftViewMatrix = new Float32Array(16);
+      this.rightProjectionMatrix = new Float32Array(16);
+      this.leftProjectionMatrix = new Float32Array(16);
+      this.pose = null;
+    };
+  }
+  return new CardboardXRDevice(global, config.cardboardConfig);
 };
 
-var CONFIG_DEFAULTS = {
+const CONFIG_DEFAULTS = {
+  global: _global,
   webvr: true,
-  cardboard: true
-};
-var partials = ['navigator', 'HTMLCanvasElement', 'WebGLRenderingContext'];
-var WebXRPolyfill = function () {
-  function WebXRPolyfill(global) {
-    var config = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
-    classCallCheck(this, WebXRPolyfill);
-    this.global = global || _global;
+  cardboard: true,
+  cardboardConfig: null,
+  allowCardboardOnDesktop: false,
+};
+const partials = ['navigator', 'HTMLCanvasElement', 'WebGLRenderingContext'];
+class WebXRPolyfill {
+  constructor(config={}) {
     this.config = Object.freeze(Object.assign({}, CONFIG_DEFAULTS, config));
+    this.global = this.config.global;
     this.nativeWebXR = 'xr' in this.global.navigator;
     this.injected = false;
     if (!this.nativeWebXR) {
       this._injectPolyfill(this.global);
+    } else {
+      this._injectCompatibilityShims(this.global);
     }
-    else if (this.config.cardboard && isMobile(this.global)) {
-        this._patchRequestDevice();
-      }
   }
-  createClass(WebXRPolyfill, [{
-    key: '_injectPolyfill',
-    value: function _injectPolyfill(global) {
-      if (!partials.every(function (iface) {
-        return !!global[iface];
-      })) {
-        throw new Error('Global must have the following attributes : ' + partials);
+  _injectPolyfill(global) {
+    if (!partials.every(iface => !!global[iface])) {
+      throw new Error(`Global must have the following attributes : ${partials}`);
+    }
+    for (const className of Object.keys(API)) {
+      if (global[className] !== undefined) {
+        console.warn(`${className} already defined on global.`);
+      } else {
+        global[className] = API[className];
       }
-      var _iteratorNormalCompletion = true;
-      var _didIteratorError = false;
-      var _iteratorError = undefined;
-      try {
-        for (var _iterator = Object.keys(API)[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
-          var className = _step.value;
-          if (global[className] !== undefined) {
-            console.warn(className + ' already defined on global.');
-          } else {
-            global[className] = API[className];
-          }
-        }
-      } catch (err) {
-        _didIteratorError = true;
-        _iteratorError = err;
-      } finally {
-        try {
-          if (!_iteratorNormalCompletion && _iterator.return) {
-            _iterator.return();
-          }
-        } finally {
-          if (_didIteratorError) {
-            throw _iteratorError;
-          }
+    }
+    {
+      const polyfilledCtx = polyfillMakeXRCompatible(global.WebGLRenderingContext);
+      if (polyfilledCtx) {
+        polyfillGetContext(global.HTMLCanvasElement);
+        if (global.OffscreenCanvas) {
+          polyfillGetContext(global.OffscreenCanvas);
         }
-      }
-      {
-        var polyfilledCtx = extendContextCompatibleXRDevice(global.WebGLRenderingContext);
-        if (polyfilledCtx) {
-          extendGetContext(global.HTMLCanvasElement);
-          if (global.WebGL2RenderingContext) {
-            extendContextCompatibleXRDevice(global.WebGL2RenderingContext);
-          }
+        if (global.WebGL2RenderingContext){
+          polyfillMakeXRCompatible(global.WebGL2RenderingContext);
         }
       }
-      this.injected = true;
-      this._patchRequestDevice();
     }
-  }, {
-    key: '_patchRequestDevice',
-    value: function _patchRequestDevice() {
-      var device = requestDevice(this.global, this.config);
-      this.xr = new XR(device);
-      Object.defineProperty(this.global.navigator, 'xr', {
-        value: this.xr,
-        configurable: true
-      });
+    this.injected = true;
+    this._patchNavigatorXR();
+  }
+  _patchNavigatorXR() {
+    let devicePromise = requestXRDevice(this.global, this.config);
+    this.xr = new XR(devicePromise);
+    Object.defineProperty(this.global.navigator, 'xr', {
+      value: this.xr,
+      configurable: true,
+    });
+  }
+  _injectCompatibilityShims(global) {
+    if (!partials.every(iface => !!global[iface])) {
+      throw new Error(`Global must have the following attributes : ${partials}`);
     }
-  }]);
-  return WebXRPolyfill;
-}();
-
-return WebXRPolyfill;
+    if (global.XRWebGLLayer) {
+      let originalRequestSession = global.navigator.xr.requestSession;
+      global.navigator.xr.requestSession = function(mode, options) {
+        return originalRequestSession.call(this, mode, options).then((session) => {
+          session._session_mode = mode;
+          return session;
+        });
+      };
+      var originalXRLayer = global.XRWebGLLayer;
+      global.XRWebGLLayer = function(session, gl, options) {
+        if (!options) {
+          options = {};
+        }
+        options.compositionDisabled = (session._session_mode === "inline");
+        return new originalXRLayer(session, gl, options);
+      };
+    }
+  }
+}
 
-})));
+export default WebXRPolyfill;
diff --git a/js/util/inline-viewer-helper.js b/js/util/inline-viewer-helper.js
new file mode 100644
index 000000000..0bf0cbc81
--- /dev/null
+++ b/js/util/inline-viewer-helper.js
@@ -0,0 +1,140 @@
+// Copyright 2019 The Immersive Web Community Group
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+/*
+Provides a simple method for tracking which XRReferenceSpace is associated with
+which XRSession. Also handles the necessary logic for enabling mouse/touch-based
+view rotation for inline sessions if desired.
+*/
+
+import {quat} from '../render/math/gl-matrix.js';
+
+const LOOK_SPEED = 0.0025;
+
+export class InlineViewerHelper {
+  constructor(canvas, referenceSpace) {
+    this.lookYaw = 0;
+    this.lookPitch = 0;
+    this.viewerHeight = 0;
+
+    this.canvas = canvas;
+    this.baseRefSpace = referenceSpace;
+    this.refSpace = referenceSpace;
+
+    this.dirty = false;
+
+    canvas.style.cursor = 'grab';
+
+    canvas.addEventListener('mousemove', (event) => {
+      // Only rotate when the left button is pressed
+      if (event.buttons & 1) {
+        this.rotateView(event.movementX, event.movementY);
+      }
+    });
+
+    // Keep track of touch-related state so that users can touch and drag on
+    // the canvas to adjust the viewer pose in an inline session.
+    let primaryTouch = undefined;
+    let prevTouchX = undefined;
+    let prevTouchY = undefined;
+
+    canvas.addEventListener("touchstart", (event) => {
+      if (primaryTouch == undefined) {
+        let touch = event.changedTouches[0];
+        primaryTouch = touch.identifier;
+        prevTouchX = touch.pageX;
+        prevTouchY = touch.pageY;
+      }
+    });
+
+    canvas.addEventListener("touchend", (event) => {
+      for (let touch of event.changedTouches) {
+        if (primaryTouch == touch.identifier) {
+          primaryTouch = undefined;
+          this.rotateView(touch.pageX - prevTouchX, touch.pageY - prevTouchY);
+        }
+      }
+    });
+
+    canvas.addEventListener("touchcancel", (event) => {
+      for (let touch of event.changedTouches) {
+        if (primaryTouch == touch.identifier) {
+          primaryTouch = undefined;
+        }
+      }
+    });
+
+    canvas.addEventListener("touchmove", (event) => {
+      for (let touch of event.changedTouches) {
+        if (primaryTouch == touch.identifier) {
+          this.rotateView(touch.pageX - prevTouchX, touch.pageY - prevTouchY);
+          prevTouchX = touch.pageX;
+          prevTouchY = touch.pageY;
+        }
+      }
+    });
+  }
+
+  setHeight(value) {
+    if (this.viewerHeight != value) {
+      this.viewerHeight = value;
+    }
+    this.dirty = true;
+  }
+
+  rotateView(dx, dy) {
+    this.lookYaw += dx * LOOK_SPEED;
+    this.lookPitch += dy * LOOK_SPEED;
+    if (this.lookPitch < -Math.PI*0.5) {
+      this.lookPitch = -Math.PI*0.5;
+    }
+    if (this.lookPitch > Math.PI*0.5) {
+      this.lookPitch = Math.PI*0.5;
+    }
+    this.dirty = true;
+  }
+
+  reset() {
+    this.lookYaw = 0;
+    this.lookPitch = 0;
+    this.refSpace = this.baseRefSpace;
+    this.dirty = false;
+  }
+
+  // XRReferenceSpace offset is immutable, so return a new reference space
+  // that has an updated orientation.
+  get referenceSpace() {
+    if (this.dirty) {
+      // Represent the rotational component of the reference space as a
+      // quaternion.
+      let invOrient = quat.create();
+      quat.rotateX(invOrient, invOrient, -this.lookPitch);
+      quat.rotateY(invOrient, invOrient, -this.lookYaw);
+      let xform = new XRRigidTransform(
+          {},
+          {x: invOrient[0], y: invOrient[1], z: invOrient[2], w: invOrient[3]});
+      this.refSpace = this.baseRefSpace.getOffsetReferenceSpace(xform);
+      xform = new XRRigidTransform({y: -this.viewerHeight});
+      this.refSpace = this.refSpace.getOffsetReferenceSpace(xform);
+      this.dirty = false;
+    }
+    return this.refSpace;
+  }
+}
diff --git a/js/cottontail/src/util/query-args.js b/js/util/query-args.js
similarity index 100%
rename from js/cottontail/src/util/query-args.js
rename to js/util/query-args.js
diff --git a/js/webxr-button.js b/js/util/webxr-button.js
similarity index 99%
rename from js/webxr-button.js
rename to js/util/webxr-button.js
index 1a4dcaa42..849d4c843 100644
--- a/js/webxr-button.js
+++ b/js/util/webxr-button.js
@@ -19,8 +19,6 @@
 // is intentionally left out so that the sample pages can demonstrate them more
 // clearly.
 
-window.XRDeviceButton = (function () {
-
 //
 // State consts
 //
@@ -267,7 +265,7 @@ const generateCSS = (options, fontSize=18)=> {
 // Button class
 //
 
-class EnterXRButton {
+export class WebXRButton {
   /**
    * Construct a new Enter XR Button
    * @constructor
@@ -489,7 +487,3 @@ const ifChild = (el, cssPrefix, suffix, fn)=> {
   const c = el.querySelector('.' + cssPrefix + '-' + suffix);
   c && fn(c);
 };
-
-return EnterXRButton;
-
-})();
diff --git a/js/webxr-sample-app.js b/js/webxr-sample-app.js
new file mode 100644
index 000000000..d7d1efad6
--- /dev/null
+++ b/js/webxr-sample-app.js
@@ -0,0 +1,190 @@
+// Copyright 2019 The Immersive Web Community Group
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+import {WebXRButton} from './util/webxr-button.js';
+import {Scene} from './render/scenes/scene.js';
+import {Renderer, createWebGLContext} from './render/core/renderer.js';
+import {InlineViewerHelper} from './util/inline-viewer-helper.js';
+
+export class WebXRSampleApp {
+  constructor(options) {
+    // Application options and defaults
+    if (!options) { options = {}; }
+
+    this.options = {
+      inline: 'inline' in options ? options.inline : true,
+      immersiveMode: options.immersiveMode || 'immersive-vr',
+      referenceSpace: options.referenceSpace || 'local',
+      defaultInputHandling: 'defaultInputHandling' in options ? options.defaultInputHandling : true,
+      controllerMesh: options.controllerMesh
+    };
+
+    this.gl = null;
+    this.renderer = null;
+    this.scene = new Scene();
+
+    this.xrButton = new WebXRButton({
+      onRequestSession: () => { this.onRequestSession(); },
+      onEndSession: (session) => { this.onEndSession(session); }
+    });
+
+    this.immersiveRefSpace = null;
+    this.inlineViewerHelper = null;
+
+    this.frameCallback = (time, frame) => {
+      let session = frame.session;
+      let refSpace = this.getSessionReferenceSpace(session);
+
+      session.requestAnimationFrame(this.frameCallback);
+      this.scene.startFrame();
+      
+      this.onXRFrame(time, frame, refSpace);
+
+      this.scene.endFrame();
+    };
+  }
+
+  getSessionReferenceSpace(session) {
+    return session.isImmersive ? this.immersiveRefSpace : this.inlineViewerHelper.referenceSpace;
+  }
+
+  run() {
+    this.onInitXR();
+  }
+
+  onInitXR() {
+    if (navigator.xr) {
+      navigator.xr.supportsSession('immersive-vr').then(() => {
+        this.xrButton.enabled = true;
+      });
+
+      // Request an inline session if needed.
+      if (this.options.inline) {
+        navigator.xr.requestSession('inline').then((session) => {
+          this.onSessionStarted(session);
+        });
+      }
+    }
+  }
+
+  onCreateGL() {
+    return createWebGLContext({
+      xrCompatible: true
+    });
+  }
+
+  onInitRenderer() {
+    if (this.gl)
+      return;
+
+    this.gl = this.onCreateGL();
+
+    if(this.gl) {
+      let canvas = this.gl.canvas;
+      if (canvas instanceof HTMLCanvasElement) {
+        document.body.append(this.gl.canvas);
+        function onResize() {
+          canvas.width = canvas.clientWidth * window.devicePixelRatio;
+          canvas.height = canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
+      }
+
+      this.renderer = new Renderer(this.gl);
+      this.scene.setRenderer(this.renderer);
+
+      if (this.options.controllerMesh) {
+        this.scene.inputRenderer.setControllerMesh(this.options.controllerMesh);
+      }
+    }
+  }
+
+  onRequestSession() {
+    // Called when the button gets clicked. Requests an immersive session.
+    navigator.xr.requestSession(this.options.immersiveMode, {
+        requiredFeatures: [this.options.referenceSpace]
+    }).then((session) => {
+      this.xrButton.setSession(session);
+      session.isImmersive = true;
+      this.onSessionStarted(session);
+    });
+  }
+
+  onEndSession(session) {
+    session.end();
+  }
+
+  onSessionStarted(session) {
+    session.addEventListener('end', (event) => {
+      this.onSessionEnded(event.session);
+    });
+
+    if (this.options.defaultInputHandling) {
+      session.addEventListener('select', (event) => {
+        let refSpace = this.getSessionReferenceSpace(event.frame.session);
+        this.scene.handleSelect(event.inputSource, event.frame, refSpace);
+      });
+    }
+
+    this.onInitRenderer();
+
+    session.updateRenderState({ 
+      baseLayer: new XRWebGLLayer(session, this.gl)
+    });
+
+    this.onRequestReferenceSpace(session).then((refSpace) => {
+      if (session.isImmersive) {
+        this.immersiveRefSpace = refSpace;
+      } else {
+        this.inlineViewerHelper = new InlineViewerHelper(this.gl.canvas, refSpace);
+        if (this.options.referenceSpace == 'local-floor' ||
+            this.options.referenceSpace == 'bounded-floor') {
+          this.inlineViewerHelper.setHeight(1.6);
+        }
+      }
+
+      session.requestAnimationFrame(this.frameCallback);
+    });
+  }
+
+  onRequestReferenceSpace(session) {
+    if (this.options.referenceSpace && session.isImmersive) {
+      return session.requestReferenceSpace(this.options.referenceSpace);
+    } else {
+      return session.requestReferenceSpace('viewer');
+    }
+  }
+
+  onSessionEnded(session) {
+    if (session == this.xrButton.session) {
+      this.xrButton.setSession(null);
+    }
+  }
+
+  // Override to customize frame handling
+  onXRFrame(time, frame, refSpace) {
+    let pose = frame.getViewerPose(refSpace);
+    if (this.options.defaultInputHandling) {
+      this.scene.updateInputSources(frame, refSpace);
+    }
+    this.scene.drawXRFrame(frame, pose);
+  }
+}
diff --git a/js/webxr-version-shim.js b/js/webxr-version-shim.js
deleted file mode 100644
index 7e2680379..000000000
--- a/js/webxr-version-shim.js
+++ /dev/null
@@ -1,527 +0,0 @@
-// Copyright 2018 The Immersive Web Community Group
-//
-// Permission is hereby granted, free of charge, to any person obtaining a copy
-// of this software and associated documentation files (the "Software"), to deal
-// in the Software without restriction, including without limitation the rights
-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-// copies of the Software, and to permit persons to whom the Software is
-// furnished to do so, subject to the following conditions:
-
-// The above copyright notice and this permission notice shall be included in
-// all copies or substantial portions of the Software.
-
-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-// SOFTWARE.
-
-// This file contains various patches to adjust for differences in outdated browser
-// implementations of the WebXR API and allow the samples to be coded exclusively
-// against the most recent version.
-
-function mat4_fromRotationTranslation(out, q, v) {
-  // Quaternion math
-  let x = q.x, y = q.y, z = q.z, w = q.w;
-  let x2 = x + x;
-  let y2 = y + y;
-  let z2 = z + z;
-  let xx = x * x2;
-  let xy = x * y2;
-  let xz = x * z2;
-  let yy = y * y2;
-  let yz = y * z2;
-  let zz = z * z2;
-  let wx = w * x2;
-  let wy = w * y2;
-  let wz = w * z2;
-  out[0] = 1 - (yy + zz);
-  out[1] = xy + wz;
-  out[2] = xz - wy;
-  out[3] = 0;
-  out[4] = xy - wz;
-  out[5] = 1 - (xx + zz);
-  out[6] = yz + wx;
-  out[7] = 0;
-  out[8] = xz + wy;
-  out[9] = yz - wx;
-  out[10] = 1 - (xx + yy);
-  out[11] = 0;
-  out[12] = v.x;
-  out[13] = v.y;
-  out[14] = v.z;
-  out[15] = 1;
-  return out;
-}
-
-class XRRayShim {
-  constructor(rayMatrix) {
-    this._transformMatrix = rayMatrix;
-
-    // TODO: Don't rely on these types for the shim.
-    // Some browsers don't support them yet.
-    let o = new DOMPointReadOnly(0, 0, 0, 1);
-    let d = new DOMPointReadOnly(0, 0, -1, 0);
-    let t = new DOMMatrix(rayMatrix);
-
-    this._origin = DOMPointReadOnly.fromPoint(t.transformPoint(o));
-    this._direction = DOMPointReadOnly.fromPoint(t.transformPoint(d));
-  }
-
-  get origin() {
-    return this._origin;
-  }
-
-  get direction() {
-    return this._direction;
-  }
-
-  get transformMatrix() {
-    return this._transformMatrix;
-  }
-}
-
-class XRRigidTransformShim {
-  constructor(position, orientation) {
-    // TODO: Don't rely on these types for the shim.
-    // Some browsers don't support them yet.
-    this._position = DOMPointReadOnly.fromPoint(position);
-    this._orientation = DOMPointReadOnly.fromPoint(orientation);
-    this._matrix = null;
-  }
-
-  get position() {
-    return this._position;
-  }
-
-  get orientation() {
-    return this._orientation;
-  }
-
-  get matrix() {
-    if (!this._matrix) {
-      this._matrix = new Float32Array(16);
-      mat4_fromRotationTranslation(this._matrix, this._orientation, this._position);
-    }
-    return this._matrix;
-  }
-}
-
-class XRViewShim {
-  constructor(legacyView, devicePose) {
-    this._view = legacyView;
-    this._pose = devicePose;
-    this._transform = null;
-  }
-
-  get eye() {
-    return this._view.projectionMatrix;
-  }
-
-  get projectionMatrix() {
-    return this._view.projectionMatrix;
-  }
-
-  get viewMatrix() {
-    return this._pose.getViewMatrix(this._view);
-  }
-
-  get transform() {
-    // FIXME: Return a transform based on the inverted view matrix
-    return null;
-  }
-}
-
-class WebXRVersionShim {
-  constructor() {
-    if (this._shouldApplyPatch()) {
-      this._applyPatch();
-    }
-
-    this._defaultDevicePromise = null;
-    this._defaultDevice = null;
-  }
-
-  _isMobile() {
-    return /Android/i.test(navigator.userAgent) ||
-          /iPhone|iPad|iPod/i.test(navigator.userAgent);s
-  }
-
-  _shouldApplyPatch() {
-    // Don't apply the patch with WebXR isn't available.
-    if (!('xr' in navigator)) {
-      return false;
-    }
-
-    // Allow for universally disabling the version shim with a URL arg, which will
-    // make it easier to test updates to native implementations.
-    let query = window.location.search.substring(1) || window.location.hash.substring(1);
-    let vars = query.split('&');
-    for (let i = 0; i < vars.length; i++) {
-      let pair = vars[i].split('=');
-      if (pair[0].toLowerCase() == 'nowebxrversionshim') {
-        return false;
-      }
-    }
-
-    return true;
-  }
-
-  _ensureDefaultDevice() {
-    if (!this._defaultDevicePromise) {
-      this._defaultDevicePromise = navigator.xr.requestDevice().then((device) => {
-        this._defaultDevice = device;
-        return device;
-      });
-    }
-    return this._defaultDevicePromise;
-  }
-
-  _makeCanvas() {
-    // Create a fullscreen canvas element for use with legacy AR mode.
-    let canvas = document.createElement('canvas');
-    canvas.style.width = '100%';
-    canvas.style.height = '100%';
-    canvas.style.left = 0;
-    canvas.style.top = 0;
-    canvas.style.right = 0;
-    canvas.style.bottom = 0;
-    canvas.style.margin = 0;
-    return canvas;
-  }
-
-  _applyPatch() {
-    //===========================
-    // Chrome 72 and older
-    //===========================
-
-    let shim = this;
-
-    if ('requestDevice' in XR.prototype) {
-      console.log('[WebXR version shim] Installing navigator.xr.requestSession shim.');
-      console.log('[WebXR version shim] Installing navigator.xr.supportsSessionMode shim.');
-
-      XR.prototype.requestSession = function(options) {
-        return shim._ensureDefaultDevice().then((device) => {
-          let newOptions = {};
-          if (options.outputContext) {
-            newOptions.outputContext = options.outputContext;
-          }
-
-          if (options.mode == 'immersive-vr') {
-            newOptions.immersive = true;
-          } else if (options.mode == 'immersive-ar') {
-            // These Chrome versions don't support immersive AR mode, they need
-            // a canvas in the DOM for use as output context.
-            newOptions.immersive = false;
-            newOptions.environmentIntegration = true;
-
-            shim._outputCanvasForAR = shim._makeCanvas();
-            newOptions.outputContext = shim._outputCanvasForAR.getContext('xrpresent');
-          } else if (!options.mode || options.mode == 'inline') {
-            newOptions.immersive = false;
-          } else {
-            throw new TypeError('Invalid mode');
-          }
-
-          return device.requestSession(newOptions).then((session) => {
-            if (shim._outputCanvasForAR) {
-              // If we're using the backwards compatible output canvas, add it
-              // to the DOM now and clean it up on session end.
-              document.body.appendChild(shim._outputCanvasForAR);
-              session.addEventListener('end', () => {
-                document.body.removeChild(shim._outputCanvasForAR);
-                shim._outputCanvasForAR = null;
-              });
-            }
-            session.mode = options.mode;
-            return session;
-          });
-        });
-      };
-
-      XR.prototype.supportsSessionMode = function(mode) {
-        return shim._ensureDefaultDevice().then((device) => {
-          let newOptions = {};
-
-          if (mode == 'immersive-vr') {
-            newOptions.immersive = true;
-          } else if (mode == 'immersive-ar') {
-            // These Chrome versions don't support immersive AR mode, they need
-            // a canvas in the DOM for use as output context.
-            newOptions.immersive = false;
-            newOptions.environmentIntegration = true;
-
-            // Make a temporary canvas for checking support, but don't attach it
-            // to the DOM. The actual output canvas will be created later if/when
-            // a session is created.
-            let tempCanvas = shim._makeCanvas();
-            newOptions.outputContext = tempCanvas.getContext('xrpresent');
-          } else if (mode == 'inline') {
-            return Promise.resolve();
-          } else {
-            throw new TypeError('Invalid mode');
-          }
-
-          return device.supportsSession(newOptions);
-        });
-      };
-    }
-
-    if ('XRRigidTransform' in window) {
-      console.log('[WebXR version shim] Installing XRRigidTransform shim.');
-      window.XRRigidTransform = XRRigidTransformShim;
-    }
-
-    if ('transformMatrix' in XRRay.prototype) {
-      console.log('[WebXR version shim] Installing XRRay.matrix shim.');
-      Object.defineProperty(XRRay.prototype, 'matrix', {
-        enumerable: true, configurable: false, writeable: false,
-        get: function() { return this.transformMatrix; }
-      });
-    }
-
-    if ('requestFrameOfReference' in XRSession.prototype) {
-      console.log('[WebXR version shim] Installing XRSession.requestReferenceSpace shim.');
-      XRSession.prototype.requestReferenceSpace = function(options) {
-        if (options.type == 'stationary') {
-          if (options.subtype == 'eye-level') {
-            return this.requestFrameOfReference('eye-level');
-          } else if (options.subtype == 'floor-level') {
-            return this.requestFrameOfReference('stage');
-          } else if (options.subtype == 'position-disabled') {
-            return this.requestFrameOfReference('head-model');
-          }
-        } else if (options.type == 'bounded') {
-          return this.requestFrameOfReference('stage', { disableStageEmulation: true });
-        }
-        
-        // Covers 'unbounded', which didn't have an equivalent in the older spec
-        return Promise.reject(new Error('Unsupported reference space'));
-      };
-    }
-
-    let usingViewsShim = false;
-
-    if ('getDevicePose' in XRFrame.prototype) {
-      console.log('[WebXR version shim] Installing XRSession.getViewerPose shim.');
-      usingViewsShim = true;
-      XRFrame.prototype.getViewerPose = function(referenceSpace) {
-        let pose = this.getDevicePose(referenceSpace);
-        if (pose && `views` in XRFrame.prototype) {
-          pose.views = [];
-          for (let view of this.views) {
-            pose.views.push(new XRViewShim(view, pose));
-          }
-        }
-        return pose;
-      }
-    } else if (!('views' in XRViewerPose.prototype)) {
-      console.log('[WebXR version shim] Installing XRViewerPose.views shim.');
-      usingViewsShim = true;
-      const NATIVE_GET_VIEWER_POSE = XRFrame.prototype.getViewerPose;
-      XRFrame.prototype.getViewerPose = function(referenceSpace) {
-        let pose = NATIVE_GET_VIEWER_POSE.call(this, referenceSpace);
-        if (pose && `views` in XRFrame.prototype) {
-          pose.views = [];
-          for (let view of this.views) {
-            pose.views.push(new XRViewShim(view, pose));
-          }
-        }
-        return pose;
-      }
-    }
-
-    if (usingViewsShim) {
-      const NATIVE_GET_VIEWPORT = XRWebGLLayer.prototype.getViewport;
-      XRWebGLLayer.prototype.getViewport = function(view) {
-        if (view instanceof XRViewShim) {
-          view = view._view;
-        }
-        return NATIVE_GET_VIEWPORT.call(this, view);
-      }
-    }
-
-    if ('XRDevicePose' in window) {
-      if ('poseModelMatrix' in XRDevicePose.prototype) {
-        console.log('[WebXR version shim] Installing XRViewerPose.transform shim.');
-        Object.defineProperty(XRDevicePose.prototype, 'transform', {
-          enumerable: true, configurable: false, writeable: false,
-          get: function() {
-            // FIXME: Convert pose matrix into transform
-            return null;
-          }
-        });
-      }
-    }
-
-    if ('setCompatibleXRDevice' in WebGLRenderingContext.prototype) {
-      console.log('[WebXR version shim] Installing WebGL XR compatibility shim.');
-
-      WebGL2RenderingContext.prototype.makeXRCompatible =
-      WebGLRenderingContext.prototype.makeXRCompatible = function() {
-        return shim._ensureDefaultDevice().then((device) => {
-          return this.setCompatibleXRDevice(device);
-        });
-      }
-
-      // TODO: In order for this to work currently it must be called after
-      // either a supportsSessionMode or requestSession resolves.
-      const NATIVE_GET_CONTEXT = HTMLCanvasElement.prototype.getContext;
-      HTMLCanvasElement.prototype.getContext = function(type, options) {
-        if (type == 'webgl' || type == 'webgl2') {
-          if (options && options.xrCompatible) {
-            options.compatibleXRDevice = shim._defaultDevice;
-          }
-        }
-        return NATIVE_GET_CONTEXT.call(this, type, options);
-      };
-
-      if ('OffscreenCanvas' in window) {
-        const NATIVE_OFFSCREEN_GET_CONTEXT = OffscreenCanvas.prototype.getContext;
-        OffscreenCanvas.prototype.getContext = function(type, options) {
-          if (type == 'webgl' || type == 'webgl2') {
-            if (options && options.xrCompatible) {
-              options.compatibleXRDevice = shim._defaultDevice;
-            }
-          }
-          return NATIVE_OFFSCREEN_GET_CONTEXT.call(this, type, options);
-        };
-      }
-    }
-
-    //===========================
-    // Chrome 67/68
-    //===========================
-
-    // Map 'immersive' to the old 'exclusive' verbiage if needed.
-    if ('exclusive' in XRSession.prototype) {
-      const NATIVE_SUPPORTS_SESSION = XRDevice.prototype.supportsSession;
-      XRDevice.prototype.supportsSession = function(options) {
-        options.exclusive = !!options.immersive;
-        return NATIVE_SUPPORTS_SESSION.call(this, options);
-      };
-
-      const NATIVE_REQUEST_SESSION = XRDevice.prototype.requestSession;
-      XRDevice.prototype.requestSession = function(options) {
-        options.exclusive = !!options.immersive;
-        return NATIVE_REQUEST_SESSION.call(this, options);
-      };
-
-      Object.defineProperty(XRSession.prototype, 'immersive', {
-        enumerable: true, configurable: false, writeable: false,
-        get: function() { return this.exclusive; }
-      });
-    }
-
-    // We can't test for the existence of the enums in question directly, so this code
-    // will just try to create the requested type and fall back if it fails.
-    const NATIVE_REQUEST_FRAME_OF_REFERENCE = XRSession.prototype.requestFrameOfReference;
-    XRSession.prototype.requestFrameOfReference = function(type, options) {
-      let session = this;
-      // Try the current type.
-      return NATIVE_REQUEST_FRAME_OF_REFERENCE.call(session, type, options).catch((error)=>{
-        // FIXME: Should be checking for TypeError specifically. Requires a polyfill update.
-        if(error instanceof Error) {
-          // If the current type fails, switch to the other version.
-          switch(type) {
-            case 'eye-level':
-              type = 'eyeLevel';
-              break;
-            case 'head-model':
-              type = 'headModel';
-              break;
-            default:
-              return Promise.reject(error);
-          }
-          return Promise.resolve(NATIVE_REQUEST_FRAME_OF_REFERENCE.call(session, type, options));
-        } else {
-          return Promise.reject(error);
-        }
-      });
-    };
-
-    // Make sure that requestAnimationFrame is always supplied with a timestamp
-    const NATIVE_REQUEST_ANIMATION_FRAME = XRSession.prototype.requestAnimationFrame;
-    XRSession.prototype.requestAnimationFrame = function(callback) {
-      return NATIVE_REQUEST_ANIMATION_FRAME.call(this, (timestamp, frame) => {
-        callback(timestamp ? timestamp : performance.now(), frame);
-      });
-    };
-
-    if (!('getNativeFramebufferScaleFactor' in XRWebGLLayer)) {
-      if (this._isMobile()) {
-        const NATIVE_WEBGL_LAYER = XRWebGLLayer;
-        const NATIVE_WEBGL_LAYER_PROTOTYPE = XRWebGLLayer.prototype;
-        XRWebGLLayer = function(session, gl, options) {
-          if (options && options.framebufferScaleFactor) {
-            // On Chrome 67/68 mobile the default framebuffer returned is 0.7 of full res.
-            options.framebufferScaleFactor = 0.7 * options.framebufferScaleFactor;
-          }
-
-          return new NATIVE_WEBGL_LAYER(session, gl, options);
-        };
-
-        XRWebGLLayer.prototype = NATIVE_WEBGL_LAYER_PROTOTYPE;
-
-        Object.defineProperty(XRWebGLLayer, 'getNativeFramebufferScaleFactor', {
-          enumerable: true, configurable: false, writeable: false,
-          value: function(session) {
-            if (!session) {
-              throw new TypeError('No XRSession specified');
-            }
-            if (isMobile()) {
-              // On Chrome 67/68 mobile the default framebuffer returned is 0.7 of full res.
-              return 1.42857;
-            } else {
-              // On Chrome 67/68 desktop the full res buffer is already returned.
-              return 1.0;
-            }
-          }
-        });
-      }
-    }
-
-    // If the environmentBlendMode isn't available report it as 'opaque', since any
-    // implementations lacking this property only really worked on VR headsets.
-    if (!('environmentBlendMode' in XRSession.prototype)) {
-      Object.defineProperty(XRSession.prototype, 'environmentBlendMode', {
-        enumerable: true, configurable: false, writeable: false,
-        get: function() { return 'opaque'; }
-      });
-    }
-
-    if (!('targetRayMode' in XRInputSource.prototype)) {
-      Object.defineProperty(XRInputSource.prototype, 'targetRayMode', {
-        enumerable: true, configurable: false, writeable: false,
-        get: function() {
-          switch (this.pointerOrigin) {
-            case 'head': return 'gaze';
-            case 'hand': return 'tracked-pointer';
-            case 'screen': return 'screen';
-
-            default: throw new ValueError('Unrecognized pointerOrigin: ' + this.pointerOrigin);
-          }
-        }
-      });
-    }
-
-    if (!('targetRay' in XRInputPose.prototype)) {
-      Object.defineProperty(XRInputPose.prototype, 'targetRay', {
-        enumerable: true, configurable: false, writeable: false,
-        get: function() {
-          if (!this._targetRay) {
-            if (this.targetRayMatrix) {
-              this._targetRay = new XRRayShim(this.targetRayMatrix);
-            } else if (this.pointerMatrix) {
-              this._targetRay = new XRRayShim(this.pointerMatrix);
-            }
-          }
-          return this._targetRay || null;
-        }
-      });
-    }
-  }
-}
diff --git a/magic-window.html b/magic-window.html
deleted file mode 100644
index 0c4ddcc6e..000000000
--- a/magic-window.html
+++ /dev/null
@@ -1,215 +0,0 @@
-<!doctype html>
-<!--
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--->
-<html>
-  <head>
-    <meta charset='utf-8'>
-    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
-    <meta name='mobile-web-app-capable' content='yes'>
-    <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>Magic Window</title>
-
-    <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
-  </head>
-  <body>
-    <header>
-      <details open>
-        <summary>Magic Window</summary>
-        <p>
-          This sample demonstrates use of a non-immersive XRSession to present
-          'Magic Window' content prior to entering XR presentation with an
-          immersive session.
-          <a class="back" href="./">Back</a>
-        </p>
-      </details>
-    </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // Shh! Nothing to see here, move along.
-      let arMode = QueryArgs.getBool('arMode', false);
-
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      let solarSystem = new Gltf2Node({url: 'media/gltf/space/space.gltf'});
-      scene.addNode(solarSystem);
-
-      if (arMode) {
-        solarSystem.scale = [0.2, 0.2, 0.2];
-      } else {
-        scene.addNode(new SkyboxNode({url: 'media/textures/milky-way-4k.png'}));
-      }
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-
-          // In order for a non-immersive session to be used we must provide
-          // an outputContext, which indicates the canvas that will contain
-          // results of the session's rendering.
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          // Pick an arbitrary device for the magic window content and start
-          // up a non-immersive session if possible.
-          navigator.xr.requestSession({outputContext: ctx})
-              .then((session) => {
-                // Add the canvas to the document once we know that it will be
-                // rendered to.
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        }
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({mode: 'immersive-vr', outputContext: ctx}).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
-
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        if (!gl) {
-          gl = createWebGLContext({
-            xrCompatible: true
-          });
-
-          renderer = new Renderer(gl);
-
-          scene.setRenderer(renderer);
-        }
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          // Since we're dealing with multple sessions now we need to track
-          // which XRReferenceSpace is associated with which XRSession.
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        // Only reset the button when the immersive session ends.
-        if (event.session.mode == "immersive-vr") {
-          // Remove the mirroring canvas.
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      // Called every time a XRSession requests that a new frame be drawn.
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        // Ensure that we're using the right frame of reference for the session.
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        if (pose) {
-          let glLayer = session.renderState.baseLayer;
-          gl.bindFramebuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
-          if (!arMode) {
-            gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-          }
-
-          for (let view of pose.views) {
-            let viewport = glLayer.getViewport(view);
-            gl.viewport(viewport.x, viewport.y,
-                        viewport.width, viewport.height);
-
-            scene.draw(view.projectionMatrix, view.viewMatrix);
-          }
-        }
-
-        scene.endFrame();
-      }
-
-      // Start the XR application.
-      initXR();
-      })();
-    </script>
-  </body>
-</html>
diff --git a/media/logo/webxr-logo-mark.svg b/media/logo/webxr-logo-mark.svg
new file mode 100644
index 000000000..e193885ce
--- /dev/null
+++ b/media/logo/webxr-logo-mark.svg
@@ -0,0 +1,197 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="54mm"
+   height="54.006218mm"
+   viewBox="0 0 54 54.006218"
+   version="1.1"
+   id="svg6107"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"
+   sodipodi:docname="webxr-logo-mark.svg">
+  <defs
+     id="defs6101">
+    <clipPath
+       id="_clip1">
+      <rect
+         x="0"
+         y="-0.001"
+         width="804"
+         height="204.118"
+         id="rect4" />
+    </clipPath>
+    <linearGradient
+       id="_Linear2"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-130642,-23458.8)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1421" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1423" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear3"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(163.535,-313.319,313.319,163.535,106277,55928.2)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1426" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1428" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear4"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-196.382,337.595,-337.595,-196.382,98241.5,57154.7)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1431" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(254,0,0);stop-opacity:0.65"
+         id="stop1433" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear5"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-111810,-20046.5)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:0.65"
+         id="stop1436" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1438" />
+    </linearGradient>
+    <clipPath
+       id="clipPath6084">
+      <rect
+         id="rect6082"
+         height="204.118"
+         width="804"
+         y="-0.001"
+         x="0" />
+    </clipPath>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.35"
+     inkscape:cx="-59.428563"
+     inkscape:cy="-475.08387"
+     inkscape:document-units="mm"
+     inkscape:current-layer="g33"
+     showgrid="false"
+     inkscape:window-width="2560"
+     inkscape:window-height="1537"
+     inkscape:window-x="-8"
+     inkscape:window-y="-8"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata6104">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(1.2851214,0.63406363)">
+    <rect
+       id="rect2"
+       style="clip-rule:evenodd;fill:none;fill-rule:evenodd;stroke-width:0.26458332;stroke-linejoin:round;stroke-miterlimit:2"
+       height="54.006218"
+       width="212.72499"
+       y="-0.63406366"
+       x="-1.2851214" />
+    <g
+       style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2"
+       id="g33"
+       clip-path="url(#_clip1)"
+       transform="matrix(0.26458333,0,0,0.26458333,-1.2851214,-0.63379905)">
+      <g
+         id="g6757"
+         transform="translate(12)">
+        <g
+           id="g17"
+           transform="matrix(0.65147,0,0,0.65147,-128.427,-187.711)">
+          <path
+             id="path15"
+             style="fill:url(#_Linear2)"
+             d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+             inkscape:connector-curvature="0" />
+        </g>
+        <g
+           id="g21"
+           transform="matrix(-0.65147,0,0,0.65147,311.234,-187.711)">
+          <path
+             id="path19"
+             style="fill:url(#_Linear3)"
+             d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+             inkscape:connector-curvature="0" />
+        </g>
+        <g
+           id="g25"
+           transform="matrix(-0.65147,0,0,0.65147,311.234,-187.711)">
+          <path
+             id="path23"
+             style="fill:url(#_Linear4)"
+             d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+             inkscape:connector-curvature="0" />
+        </g>
+        <g
+           id="g29"
+           transform="matrix(0.65147,0,0,0.65147,-128.427,-187.711)">
+          <path
+             id="path27"
+             style="fill:url(#_Linear5)"
+             d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+             inkscape:connector-curvature="0" />
+        </g>
+      </g>
+    </g>
+  </g>
+</svg>
diff --git a/media/logo/webxr-logo-square.svg b/media/logo/webxr-logo-square.svg
new file mode 100644
index 000000000..2ab14c7ec
--- /dev/null
+++ b/media/logo/webxr-logo-square.svg
@@ -0,0 +1,228 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="180mm"
+   height="180mm"
+   viewBox="0 0 180 180"
+   version="1.1"
+   id="svg6107"
+   sodipodi:docname="webxr-logo-square.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"
+   inkscape:export-filename="C:\src\github\webxr-samples\media\textures\webxr-logo-square.png"
+   inkscape:export-xdpi="72.248894"
+   inkscape:export-ydpi="72.248894">
+  <defs
+     id="defs6101">
+    <clipPath
+       id="_clip1">
+      <rect
+         x="0"
+         y="-0.001"
+         width="804"
+         height="204.118"
+         id="rect4" />
+    </clipPath>
+    <linearGradient
+       id="_Linear2"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-130642,-23458.8)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1421" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1423" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear3"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(163.535,-313.319,313.319,163.535,106277,55928.2)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1426" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1428" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear4"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-196.382,337.595,-337.595,-196.382,98241.5,57154.7)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1431" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(254,0,0);stop-opacity:0.65"
+         id="stop1433" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear5"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-111810,-20046.5)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:0.65"
+         id="stop1436" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1438" />
+    </linearGradient>
+    <clipPath
+       id="clipPath6084">
+      <rect
+         id="rect6082"
+         height="204.118"
+         width="804"
+         y="-0.001"
+         x="0" />
+    </clipPath>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.98994949"
+     inkscape:cx="496.25322"
+     inkscape:cy="330.89424"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="1541"
+     inkscape:window-height="1078"
+     inkscape:window-x="104"
+     inkscape:window-y="104"
+     inkscape:window-maximized="0" />
+  <metadata
+     id="metadata6104">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(-27.238165,189.16506)">
+    <rect
+       style="fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:0.19038601;stroke-opacity:1"
+       id="rect6868"
+       width="180.08662"
+       height="180.01126"
+       x="27.238165"
+       y="-189.17632" />
+    <g
+       style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2"
+       id="g13"
+       transform="matrix(0.36318031,0,0,0.36318031,-18.184361,-156.03151)">
+      <path
+         id="path11"
+         style="fill:#3d3d3d;fill-rule:nonzero"
+         d="m 378.29,254.775 v 24.662 c 0,5.22 -0.18,9.841 -0.48,13.981 5.041,-6.841 12.421,-10.321 22.082,-10.321 9.361,0 16.681,3.24 21.842,9.661 5.22,6.42 7.801,15.421 7.801,27.002 0,11.641 -2.641,20.702 -7.861,27.243 -5.221,6.48 -12.541,9.72 -21.782,9.72 -4.62,0 -8.881,-0.84 -12.721,-2.52 h -0.06 c -3.72,-1.74 -6.901,-4.38 -9.481,-7.8 h -0.18 l -2.28,9.06 h -8.401 V 254.775 Z m -203.898,6 14.881,58.266 c 1.8,7.14 3.121,13.621 4.081,19.561 1.14,-6.96 2.64,-13.801 4.68,-20.462 l 16.862,-57.365 h 12.241 l 17.761,57.845 c 1.8,6.001 3.36,12.722 4.681,20.102 0.9,-5.64 2.22,-12.121 4.2,-19.802 l 14.881,-58.145 h 12.481 l -25.262,94.329 -0.06,0.36 h -11.461 l -19.022,-63.126 c -0.9,-2.76 -1.92,-6.3 -3,-10.501 -0.54,-2.16 -1.02,-3.84 -1.26,-5.1 l -0.06,-0.24 c -0.96,5.04 -2.22,10.381 -4.02,16.261 l -18.422,62.706 h -11.461 l -25.202,-94.689 z m 276.984,0 22.982,36.724 23.222,-36.724 h 12.721 l -29.342,44.824 31.142,49.145 0.42,0.72 H 499.08 L 474.118,314.6 448.736,355.464 h -12.601 l 31.443,-49.445 -29.343,-45.244 z m 99.549,0 c 11.581,0 20.162,2.22 25.742,6.721 5.641,4.5 8.461,11.281 8.461,20.222 0,12.361 -6.361,20.882 -18.662,25.382 l 25.622,42.364 H 578.107 L 555.425,316.46 h -18.841 v 39.004 h -11.821 v -94.689 z m -14.341,45.424 h 14.461 c 7.621,0 13.141,-1.5 16.621,-4.44 3.481,-3 5.221,-7.441 5.221,-13.441 0,-6.121 -1.74,-10.381 -5.281,-13.022 -3.54,-2.64 -9.3,-4.02 -17.341,-4.02 H 536.584 Z M 341.747,291.858 c 5.22,5.88 7.8,13.621 7.8,23.162 v 7.201 h -48.304 c 0.24,7.92 2.28,13.921 6.001,18.001 3.9,4.201 9.361,6.301 16.441,6.301 7.501,0 14.881,-1.56 22.262,-4.741 l 0.6,-0.24 v 10.441 l -0.24,0.12 c -3.78,1.68 -7.38,2.82 -10.801,3.54 -3.42,0.721 -7.44,1.081 -12.241,1.081 -10.441,0 -18.782,-3.241 -24.902,-9.661 -6.121,-6.421 -9.121,-15.302 -9.121,-26.643 0,-11.401 2.82,-20.521 8.461,-27.302 5.64,-6.721 13.321,-10.141 22.802,-10.141 8.941,0 16.021,2.94 21.242,8.881 z m -34.563,6.3 c -3.121,3.481 -5.041,8.341 -5.701,14.522 h 35.763 c -0.12,-6.421 -1.56,-11.281 -4.38,-14.642 -2.88,-3.48 -7.021,-5.22 -12.481,-5.22 -5.521,0 -9.901,1.74 -13.201,5.34 z m 75.846,0.9 c -3.12,3.961 -4.74,10.921 -4.74,20.702 0,9.841 1.68,16.802 4.86,20.942 3.181,4.141 8.281,6.181 15.482,6.181 6.42,0 11.101,-2.281 14.221,-6.901 3.12,-4.68 4.741,-11.461 4.741,-20.342 0,-9.061 -1.621,-15.781 -4.741,-20.162 -3.12,-4.38 -7.921,-6.54 -14.521,-6.54 -7.141,0 -12.241,2.04 -15.302,6.12"
+         inkscape:connector-curvature="0" />
+    </g>
+    <g
+       id="g6809"
+       transform="matrix(1.8678447,0,0,1.8678447,75.96318,-172.59267)">
+      <g
+         transform="matrix(0.1723681,0,0,0.1723681,-35.264765,-50.299001)"
+         id="g17"
+         style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2">
+        <path
+           inkscape:connector-curvature="0"
+           d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+           style="fill:url(#_Linear2)"
+           id="path15" />
+      </g>
+      <g
+         transform="matrix(-0.1723681,0,0,0.1723681,81.062207,-50.299001)"
+         id="g21"
+         style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2">
+        <path
+           inkscape:connector-curvature="0"
+           d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+           style="fill:url(#_Linear3)"
+           id="path19" />
+      </g>
+      <g
+         transform="matrix(-0.1723681,0,0,0.1723681,81.062207,-50.299001)"
+         id="g25"
+         style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2">
+        <path
+           inkscape:connector-curvature="0"
+           d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+           style="fill:url(#_Linear4)"
+           id="path23" />
+      </g>
+      <g
+         transform="matrix(0.1723681,0,0,0.1723681,-35.264765,-50.299001)"
+         id="g29"
+         style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2">
+        <path
+           inkscape:connector-curvature="0"
+           d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+           style="fill:url(#_Linear5)"
+           id="path27" />
+      </g>
+    </g>
+    <path
+       style="fill:#837c7c;fill-opacity:1;stroke:none;stroke-width:0.26458332;stroke-opacity:1"
+       d="m 27.238165,-189.17632 v 7.9375 15.875 h 7.9375 v -15.875 h 15.875 v -7.9375 h -15.875 z"
+       id="rect6811"
+       inkscape:connector-curvature="0" />
+    <path
+       inkscape:connector-curvature="0"
+       style="fill:#837c7c;fill-opacity:1;stroke:none;stroke-width:0.26458332;stroke-opacity:1"
+       d="m 207.35888,-189.10361 v 7.9375 15.875 h -7.9375 v -15.875 h -15.875 v -7.9375 h 15.875 z"
+       id="rect6811-8" />
+    <path
+       style="fill:#837c7c;fill-opacity:1;stroke:none;stroke-width:0.26458332;stroke-opacity:1"
+       d="m 27.238165,-9.16506 v -7.937501 -15.875 h 7.9375 v 15.875 h 15.875 v 7.937501 h -15.875 z"
+       id="rect6811-7"
+       inkscape:connector-curvature="0" />
+    <path
+       inkscape:connector-curvature="0"
+       style="fill:#837c7c;fill-opacity:1;stroke:none;stroke-width:0.26458332;stroke-opacity:1"
+       d="m 207.32478,-9.16506 v -7.937501 -15.875 h -7.9375 v 15.875 h -15.875 v 7.937501 h 15.875 z"
+       id="rect6811-8-6" />
+  </g>
+</svg>
diff --git a/media/logo/webxr-logo.svg b/media/logo/webxr-logo.svg
new file mode 100644
index 000000000..dfdd7a5ab
--- /dev/null
+++ b/media/logo/webxr-logo.svg
@@ -0,0 +1,219 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
+<svg
+   xmlns:serif="http://www.serif.com/"
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   width="212.72499mm"
+   height="54.006218mm"
+   viewBox="0 0 212.72499 54.006218"
+   version="1.1"
+   id="svg6107"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)"
+   sodipodi:docname="webxr-logo.svg">
+  <defs
+     id="defs6101">
+    <clipPath
+       id="_clip1">
+      <rect
+         x="0"
+         y="-0.001"
+         width="804"
+         height="204.118"
+         id="rect4" />
+    </clipPath>
+    <linearGradient
+       id="_Linear2"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-130642,-23458.8)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1421" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1423" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear3"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(163.535,-313.319,313.319,163.535,106277,55928.2)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:1"
+         id="stop1426" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:1"
+         id="stop1428" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear4"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-196.382,337.595,-337.595,-196.382,98241.5,57154.7)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1431" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(254,0,0);stop-opacity:0.65"
+         id="stop1433" />
+    </linearGradient>
+    <linearGradient
+       id="_Linear5"
+       x1="0"
+       y1="0"
+       x2="1"
+       y2="0"
+       gradientUnits="userSpaceOnUse"
+       gradientTransform="matrix(-70.1494,387.159,-387.159,-70.1494,-111810,-20046.5)">
+      <stop
+         offset="0"
+         style="stop-color:rgb(255,0,0);stop-opacity:0.65"
+         id="stop1436" />
+      <stop
+         offset="1"
+         style="stop-color:rgb(153,0,0);stop-opacity:0.65"
+         id="stop1438" />
+    </linearGradient>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0.0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="0.35"
+     inkscape:cx="-59.428563"
+     inkscape:cy="-360.79815"
+     inkscape:document-units="mm"
+     inkscape:current-layer="layer1"
+     showgrid="false"
+     inkscape:window-width="2560"
+     inkscape:window-height="1537"
+     inkscape:window-x="-8"
+     inkscape:window-y="-8"
+     inkscape:window-maximized="1" />
+  <metadata
+     id="metadata6104">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title></dc:title>
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(1.2851214,0.63406363)">
+    <g
+       style="clip-rule:evenodd;fill-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2"
+       id="Opacity--Gradient"
+       serif:id="Opacity, Gradient"
+       transform="matrix(0.26458333,0,0,0.26458333,-1.2851214,-0.63379905)">
+      <rect
+         x="0"
+         y="-0.001"
+         width="804"
+         height="204.118"
+         style="fill:none"
+         id="rect2" />
+      <clipPath
+         id="clipPath6084">
+        <rect
+           x="0"
+           y="-0.001"
+           width="804"
+           height="204.118"
+           id="rect6082" />
+      </clipPath>
+      <g
+         clip-path="url(#_clip1)"
+         id="g33">
+        <g
+           id="g31">
+          <g
+             transform="matrix(1.37265,0,0,1.37265,-8.7283,-316.187)"
+             id="g9">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 378.29,254.775 v 24.662 c 0,5.22 -0.18,9.841 -0.48,13.981 5.041,-6.841 12.421,-10.321 22.082,-10.321 9.361,0 16.681,3.24 21.842,9.661 5.22,6.42 7.801,15.421 7.801,27.002 0,11.641 -2.641,20.702 -7.861,27.243 -5.221,6.48 -12.541,9.72 -21.782,9.72 -4.62,0 -8.881,-0.84 -12.721,-2.52 h -0.06 c -3.72,-1.74 -6.901,-4.38 -9.481,-7.8 h -0.18 l -2.28,9.06 h -8.401 V 254.775 Z m -203.898,6 14.881,58.266 c 1.8,7.14 3.121,13.621 4.081,19.561 1.14,-6.96 2.64,-13.801 4.68,-20.462 l 16.862,-57.365 h 12.241 l 17.761,57.845 c 1.8,6.001 3.36,12.722 4.681,20.102 0.9,-5.64 2.22,-12.121 4.2,-19.802 l 14.881,-58.145 h 12.481 l -25.262,94.329 -0.06,0.36 h -11.461 l -19.022,-63.126 c -0.9,-2.76 -1.92,-6.3 -3,-10.501 -0.54,-2.16 -1.02,-3.84 -1.26,-5.1 l -0.06,-0.24 c -0.96,5.04 -2.22,10.381 -4.02,16.261 l -18.422,62.706 h -11.461 l -25.202,-94.689 z m 276.984,0 22.982,36.724 23.222,-36.724 h 12.721 l -29.342,44.824 31.142,49.145 0.42,0.72 H 499.08 L 474.118,314.6 448.736,355.464 h -12.601 l 31.443,-49.445 -29.343,-45.244 z m 99.549,0 c 11.581,0 20.162,2.22 25.742,6.721 5.641,4.5 8.461,11.281 8.461,20.222 0,12.361 -6.361,20.882 -18.662,25.382 l 25.622,42.364 H 578.107 L 555.425,316.46 h -18.841 v 39.004 h -11.821 v -94.689 z m -14.341,45.424 h 14.461 c 7.621,0 13.141,-1.5 16.621,-4.44 3.481,-3 5.221,-7.441 5.221,-13.441 0,-6.121 -1.74,-10.381 -5.281,-13.022 -3.54,-2.64 -9.3,-4.02 -17.341,-4.02 H 536.584 Z M 341.747,291.858 c 5.22,5.88 7.8,13.621 7.8,23.162 v 7.201 h -48.304 c 0.24,7.92 2.28,13.921 6.001,18.001 3.9,4.201 9.361,6.301 16.441,6.301 7.501,0 14.881,-1.56 22.262,-4.741 l 0.6,-0.24 v 10.441 l -0.24,0.12 c -3.78,1.68 -7.38,2.82 -10.801,3.54 -3.42,0.721 -7.44,1.081 -12.241,1.081 -10.441,0 -18.782,-3.241 -24.902,-9.661 -6.121,-6.421 -9.121,-15.302 -9.121,-26.643 0,-11.401 2.82,-20.521 8.461,-27.302 5.64,-6.721 13.321,-10.141 22.802,-10.141 8.941,0 16.021,2.94 21.242,8.881 z m -34.563,6.3 c -3.121,3.481 -5.041,8.341 -5.701,14.522 h 35.763 c -0.12,-6.421 -1.56,-11.281 -4.38,-14.642 -2.88,-3.48 -7.021,-5.22 -12.481,-5.22 -5.521,0 -9.901,1.74 -13.201,5.34 z m 75.846,0.9 c -3.12,3.961 -4.74,10.921 -4.74,20.702 0,9.841 1.68,16.802 4.86,20.942 3.181,4.141 8.281,6.181 15.482,6.181 6.42,0 11.101,-2.281 14.221,-6.901 3.12,-4.68 4.741,-11.461 4.741,-20.342 0,-9.061 -1.621,-15.781 -4.741,-20.162 -3.12,-4.38 -7.921,-6.54 -14.521,-6.54 -7.141,0 -12.241,2.04 -15.302,6.12"
+               style="fill:#3d3d3d;fill-rule:nonzero"
+               id="path7" />
+          </g>
+          <g
+             transform="matrix(1.37265,0,0,1.37265,-8.7283,-316.187)"
+             id="g13">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 378.29,254.775 v 24.662 c 0,5.22 -0.18,9.841 -0.48,13.981 5.041,-6.841 12.421,-10.321 22.082,-10.321 9.361,0 16.681,3.24 21.842,9.661 5.22,6.42 7.801,15.421 7.801,27.002 0,11.641 -2.641,20.702 -7.861,27.243 -5.221,6.48 -12.541,9.72 -21.782,9.72 -4.62,0 -8.881,-0.84 -12.721,-2.52 h -0.06 c -3.72,-1.74 -6.901,-4.38 -9.481,-7.8 h -0.18 l -2.28,9.06 h -8.401 V 254.775 Z m -203.898,6 14.881,58.266 c 1.8,7.14 3.121,13.621 4.081,19.561 1.14,-6.96 2.64,-13.801 4.68,-20.462 l 16.862,-57.365 h 12.241 l 17.761,57.845 c 1.8,6.001 3.36,12.722 4.681,20.102 0.9,-5.64 2.22,-12.121 4.2,-19.802 l 14.881,-58.145 h 12.481 l -25.262,94.329 -0.06,0.36 h -11.461 l -19.022,-63.126 c -0.9,-2.76 -1.92,-6.3 -3,-10.501 -0.54,-2.16 -1.02,-3.84 -1.26,-5.1 l -0.06,-0.24 c -0.96,5.04 -2.22,10.381 -4.02,16.261 l -18.422,62.706 h -11.461 l -25.202,-94.689 z m 276.984,0 22.982,36.724 23.222,-36.724 h 12.721 l -29.342,44.824 31.142,49.145 0.42,0.72 H 499.08 L 474.118,314.6 448.736,355.464 h -12.601 l 31.443,-49.445 -29.343,-45.244 z m 99.549,0 c 11.581,0 20.162,2.22 25.742,6.721 5.641,4.5 8.461,11.281 8.461,20.222 0,12.361 -6.361,20.882 -18.662,25.382 l 25.622,42.364 H 578.107 L 555.425,316.46 h -18.841 v 39.004 h -11.821 v -94.689 z m -14.341,45.424 h 14.461 c 7.621,0 13.141,-1.5 16.621,-4.44 3.481,-3 5.221,-7.441 5.221,-13.441 0,-6.121 -1.74,-10.381 -5.281,-13.022 -3.54,-2.64 -9.3,-4.02 -17.341,-4.02 H 536.584 Z M 341.747,291.858 c 5.22,5.88 7.8,13.621 7.8,23.162 v 7.201 h -48.304 c 0.24,7.92 2.28,13.921 6.001,18.001 3.9,4.201 9.361,6.301 16.441,6.301 7.501,0 14.881,-1.56 22.262,-4.741 l 0.6,-0.24 v 10.441 l -0.24,0.12 c -3.78,1.68 -7.38,2.82 -10.801,3.54 -3.42,0.721 -7.44,1.081 -12.241,1.081 -10.441,0 -18.782,-3.241 -24.902,-9.661 -6.121,-6.421 -9.121,-15.302 -9.121,-26.643 0,-11.401 2.82,-20.521 8.461,-27.302 5.64,-6.721 13.321,-10.141 22.802,-10.141 8.941,0 16.021,2.94 21.242,8.881 z m -34.563,6.3 c -3.121,3.481 -5.041,8.341 -5.701,14.522 h 35.763 c -0.12,-6.421 -1.56,-11.281 -4.38,-14.642 -2.88,-3.48 -7.021,-5.22 -12.481,-5.22 -5.521,0 -9.901,1.74 -13.201,5.34 z m 75.846,0.9 c -3.12,3.961 -4.74,10.921 -4.74,20.702 0,9.841 1.68,16.802 4.86,20.942 3.181,4.141 8.281,6.181 15.482,6.181 6.42,0 11.101,-2.281 14.221,-6.901 3.12,-4.68 4.741,-11.461 4.741,-20.342 0,-9.061 -1.621,-15.781 -4.741,-20.162 -3.12,-4.38 -7.921,-6.54 -14.521,-6.54 -7.141,0 -12.241,2.04 -15.302,6.12"
+               style="fill:#3d3d3d;fill-rule:nonzero"
+               id="path11" />
+          </g>
+          <g
+             transform="matrix(0.65147,0,0,0.65147,-128.427,-187.711)"
+             id="g17">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+               style="fill:url(#_Linear2)"
+               id="path15" />
+          </g>
+          <g
+             transform="matrix(-0.65147,0,0,0.65147,311.234,-187.711)"
+             id="g21">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 259.879,588.352 c -4.857,-11.581 -61.068,-146.689 -61.068,-146.689 0,0 -13.124,-31.17 34.042,-53.317 47.165,-22.147 104.584,-50.036 104.584,-50.036 v 211.727 c 0,0 -33.99,33.704 -47.434,47.215 -12.216,12.279 -25.248,2.729 -30.124,-8.9 z"
+               style="fill:url(#_Linear3)"
+               id="path19" />
+          </g>
+          <g
+             transform="matrix(-0.65147,0,0,0.65147,311.234,-187.711)"
+             id="g25">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+               style="fill:url(#_Linear4)"
+               id="path23" />
+          </g>
+          <g
+             transform="matrix(0.65147,0,0,0.65147,-128.427,-187.711)"
+             id="g29">
+            <path
+               inkscape:connector-curvature="0"
+               d="m 337.437,338.31 97.478,-47.288 c 0,0 20.767,-9.152 15.564,20.116 L 437.16,386.06 Z"
+               style="fill:url(#_Linear5)"
+               id="path27" />
+          </g>
+        </g>
+      </g>
+    </g>
+  </g>
+</svg>
diff --git a/media/textures/cube-sea.png b/media/textures/cube-sea.png
index 460f23a36..7f675a1df 100644
Binary files a/media/textures/cube-sea.png and b/media/textures/cube-sea.png differ
diff --git a/mirroring.html b/mirroring.html
deleted file mode 100644
index 1d1b07be1..000000000
--- a/mirroring.html
+++ /dev/null
@@ -1,199 +0,0 @@
-<!doctype html>
-<!--
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--->
-<html>
-  <head>
-    <meta charset='utf-8'>
-    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
-    <meta name='mobile-web-app-capable' content='yes'>
-    <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>Mirroring</title>
-
-    <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
-  </head>
-  <body>
-    <header>
-      <details open>
-        <summary>Mirroring</summary>
-        <p>
-          This sample demonstrates how to present a simple WebGL scene to a
-          XRDevice while mirroring to a context. The scene is not rendered to
-          the page prior to XR presentation. Mirroring has no effect on mobile
-          or standalone devices.
-          <a class="back" href="./">Back</a>
-        </p>
-      </details>
-    </header>
-    <main style='text-align: center;'>
-      <p>Click 'Enter XR' to see content</p>
-    </main>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // XR globals.
-      let xrButton = null;
-      let xrRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new Gltf2Node({url: 'media/gltf/space/space.gltf'}));
-      scene.addNode(new SkyboxNode({url: 'media/textures/milky-way-4k.png'}));
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-        }
-      }
-
-      function onRequestSession() {
-        // In order to mirror an exclusive session, we must provide
-        // an XRPresentationContext, which indicates the canvas that will
-        // contain results of the session's rendering.
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-
-        // Add the canvas to the document.
-        document.body.appendChild(mirrorCanvas);
-
-        // Providing an outputContext when requesting an exclusive session
-        // indicates that it should be used as the mirror destination.
-        navigator.xr.requestSession({
-          mode: 'immersive-vr',
-          outputContext: ctx
-        }).then(onSessionStarted);
-      }
-
-      function onSessionStarted(session) {
-        xrButton.setSession(session);
-
-        session.addEventListener('end', onSessionEnded);
-
-        if (!gl) {
-          gl = createWebGLContext({
-            xrCompatible: true
-          });
-
-          renderer = new Renderer(gl);
-
-          scene.setRenderer(renderer);
-        }
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        // Set the mirroring context to be the same size as one eye on the
-        // layer context.
-        let outputCanvas = document.querySelector('#mirror-canvas');
-        let glLayer = session.renderState.baseLayer;
-        outputCanvas.width = glLayer.framebufferWidth / 2;
-        outputCanvas.height = glLayer.framebufferHeight;
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          xrRefSpace = refSpace;
-
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        xrButton.setSession(null);
-
-        gl = null;
-
-        // Remove the injected mirroring canvas from the DOM.
-        document.body.removeChild(document.querySelector('#mirror-canvas'));
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        let pose = frame.getViewerPose(xrRefSpace);
-
-        if (pose) {
-          let glLayer = session.renderState.baseLayer;
-
-          gl.bindFramebuffer(gl.FRAMEBUFFER, glLayer.framebuffer);
-          gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
-
-          for (let view of pose.views) {
-            let viewport = glLayer.getViewport(view);
-            gl.viewport(viewport.x, viewport.y,
-                        viewport.width, viewport.height);
-
-            scene.draw(view.projectionMatrix, view.viewMatrix);
-          }
-        }
-
-        // Per-frame scene teardown. Nothing WebXR specific here.
-        scene.endFrame();
-      }
-
-      // Start the XR application.
-      initXR();
-      })();
-    </script>
-  </body>
-</html>
diff --git a/module-tester.html b/module-tester.html
deleted file mode 100644
index 5d3de9e27..000000000
--- a/module-tester.html
+++ /dev/null
@@ -1,301 +0,0 @@
-<!doctype html>
-<!--
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--->
-<html>
-  <head>
-    <meta charset='utf-8'>
-    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
-    <meta name='mobile-web-app-capable' content='yes'>
-    <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>Scene tester</title>
-
-    <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <style>
-      #scene-select {
-        position: absolute;
-        z-index: 2;
-      }
-    </style>
-  </head>
-  <body>
-    <header>
-      <details open>
-        <summary>Module Tester</summary>
-        <p>
-          Just a simple test page to allow developers to test sample scenes
-          without a headset.<br/>
-          WASD + Mouse Click/Drag to move.
-        </p>
-        <select id='scene-select'>
-          <option value='void' selected>Void</option>
-          <option value='cube-sea'>Cube Sea</option>
-          <option value='space'>Space (glTF)</option>
-          <option value='camp'>Camp (glTF)</option>
-          <option value='cave'>Cave (glTF)</option>
-          <option value='garage'>Garage (glTF)</option>
-          <option value='cube-room'>Cube Room (glTF)</option>
-          <option value='home-theater'>Home Theater (glTF)</option>
-        </select>
-      </details>
-    </header>
-
-    <script type="module">
-      import {Scene} from './js/cottontail/src/scenes/scene.js';
-      import {Renderer, createWebGLContext} from './js/cottontail/src/core/renderer.js';
-      import {UrlTexture} from './js/cottontail/src/core/texture.js';
-
-      import {BoxBuilder} from './js/cottontail/src/geometry/box-builder.js';
-      import {PbrMaterial} from './js/cottontail/src/materials/pbr.js';
-
-      import {ButtonNode} from './js/cottontail/src/nodes/button.js';
-      import {CubeSeaNode} from './js/cottontail/src/nodes/cube-sea.js';
-      import {Gltf2Node} from './js/cottontail/src/nodes/gltf2.js';
-
-      const IDENTITY_MATRIX = new Float32Array([1, 0, 0, 0,
-                                                0, 1, 0, 0,
-                                                0, 0, 1, 0,
-                                                0, 1.6, 0, 1]);
-
-      let projectionMat = mat4.create();
-      let viewMat = mat4.create();
-
-      let scene = null;
-      let gl = createWebGLContext({antialias: false});
-      document.body.appendChild(gl.canvas);
-
-      let renderer = new Renderer(gl);
-
-      let boxNodes = [];
-
-      function setScene(newScene) {
-        scene = newScene;
-        scene.standingStats(true);
-        scene.addNode(new SkyboxNode({url: 'media/textures/milky-way-4k.png'}));
-
-        let stereo = new Gltf2Node({url: 'media/gltf/stereo/stereo.gltf'});
-        stereo.selectable = true;
-        boxNodes.push(stereo);
-        scene.addNode(stereo);
-
-        scene.setRenderer(renderer);
-
-        let boxBuilder = new BoxBuilder();
-
-        function addBox(x, y, z) {
-          boxBuilder.pushCube([x, y, z], 0.3);
-          let boxPrimitve = boxBuilder.primitiveStream.finishPrimitive(renderer);
-
-          let boxMaterial = new PbrMaterial();
-          boxMaterial.baseColorFactor.value = [0.0, 0.3, 1.0, 1.0];
-
-          let node = renderer.createMesh(boxPrimitve, boxMaterial);
-          node.selectable = true;
-          scene.addNode(node);
-          boxNodes.push(node);
-          boxBuilder.clear();
-        }
-        
-        /*addBox(0, 0, -1.0);
-        addBox(-0.7, 0, -1.0);
-        addBox(0.7, 0, -1.0);
-        addBox(0, -0.7, -1.0);
-        addBox(0, 0.7, -1.0);
-        addBox(-0.7, -0.7, -1.0);
-        addBox(0.7, -0.7, -1.0);
-        addBox(-0.7, 0.7, -1.0);
-        addBox(0.7, 0.7, -1.0);*/
-
-        let button = new ButtonNode(new UrlTexture('media/textures/play-button.png'), () => {
-          // Do something?
-          button.iconTexture = new UrlTexture('media/textures/pause-button.png');
-          console.log("Button clicked");
-        });
-        scene.addNode(button);
-      }
-
-      function onResize () {
-        gl.canvas.width = gl.canvas.offsetWidth * window.devicePixelRatio;
-        gl.canvas.height = gl.canvas.offsetHeight * window.devicePixelRatio;
-
-        gl.viewport(0, 0, gl.canvas.width, gl.canvas.height);
-        mat4.perspective(projectionMat, Math.PI*0.4,
-                         gl.canvas.width/gl.canvas.height,
-                         0.1, 1000.0);
-      }
-      window.addEventListener('resize', onResize);
-      onResize();
-
-      // Simple flight controls
-      let pressedKeys = new Array(256);
-      let selectStarted = false;
-      let selectPending = false;
-      let lookYaw = 0;
-      let lookPitch = 0;
-      let lookPos = [0, 0, 0];
-      const lookSpeed = 0.0025;
-      const moveSpeed = 0.0025;
-      window.addEventListener('keydown', (ev) => pressedKeys[ev.keyCode] = true);
-      window.addEventListener('keyup', (ev) => pressedKeys[ev.keyCode] = false);
-      window.addEventListener('mousemove', (ev) => {
-        // Only rotate when the left button is pressed
-        if (ev.buttons && 1) {
-          lookYaw += ev.movementX * lookSpeed;
-
-          lookPitch += ev.movementY * lookSpeed;
-          if (lookPitch < -Math.PI*0.5)
-              lookPitch = -Math.PI*0.5;
-          if (lookPitch > Math.PI*0.5)
-              lookPitch = Math.PI*0.5;
-        }
-      });
-
-      function updateView(delta) {
-        if (pressedKeys[' '.charCodeAt(0)]) {
-          selectStarted = true;
-        } else if (selectStarted) {
-          selectStarted = false;
-          selectPending = true;
-        }
-
-        let moveDir = [0, 0, 0];
-
-        if(pressedKeys['W'.charCodeAt(0)]) {
-            moveDir[2] += 1;
-        }
-        if(pressedKeys['S'.charCodeAt(0)]) {
-            moveDir[2] -= 1;
-        }
-        if(pressedKeys['A'.charCodeAt(0)]) {
-            moveDir[0] += 1;
-        }
-        if(pressedKeys['D'.charCodeAt(0)]) {
-            moveDir[0] -= 1;
-        }
-
-        vec3.normalize(moveDir, moveDir);
-        vec3.scale(moveDir, moveDir, delta * moveSpeed);
-
-        mat4.identity(viewMat);
-        mat4.rotateY(viewMat, viewMat, -lookYaw);
-        mat4.rotateX(viewMat, viewMat, -lookPitch);
-
-        vec3.transformMat4(moveDir, moveDir, viewMat);
-        vec3.add(lookPos, lookPos, moveDir);
-
-        mat4.identity(viewMat);
-        mat4.rotateX(viewMat, viewMat, lookPitch);
-        mat4.rotateY(viewMat, viewMat, lookYaw);
-        mat4.translate(viewMat, viewMat, lookPos);
-      };
-
-      let selectedNode = null;
-
-      function checkRay(targetRay) {
-        if (selectedNode) {
-          //selectedNode.visible = true;
-        }
-        let hitResult = scene.hitTest(targetRay);
-        if (hitResult) {
-          selectedNode = hitResult.node;
-          //selectedNode.visible = false;
-          scene.inputRenderer.addCursor(hitResult.intersection);
-        } else {
-          selectedNode = null;
-        }
-      }
-
-      let targetRayMatrix = mat4.create();
-      function onGLFrame(t) {
-        window.requestAnimationFrame(onGLFrame);
-
-        if (!scene)
-          return;
-
-        let frameDelta = scene.startFrame();
-        updateView(frameDelta);
-
-        let cursorPos = vec3.fromValues(0, 0, -2.0);
-        mat4.invert(targetRayMatrix, viewMat);
-        vec3.transformMat4(cursorPos, cursorPos, targetRayMatrix);
-
-        scene.inputRenderer.addCursor(cursorPos);
-
-        let mat = mat4.create();
-        mat4.identity(mat);
-        mat4.translate(mat, mat, [Math.sin(t / 1000), 0, Math.cos(t / 1000)]);
-        mat4.rotateY(mat, mat, t / 1000);
-
-        for (let boxNode of boxNodes) {
-          boxNode.matrix = mat;
-        }
-
-        checkRay(targetRayMatrix);
-
-        if (selectPending) {
-          selectPending = false;
-          scene.handleSelectPointer(targetRayMatrix);
-        }
-
-        gl.clear(gl.DEPTH_BUFFER_BIT);
-
-        scene.draw(projectionMat, viewMat);
-
-        scene.endFrame();
-      }
-      window.requestAnimationFrame(onGLFrame);
-
-      let sceneSelect = document.getElementById('scene-select');
-      function onSceneSelected() {
-        let scene = new Scene();
-        switch(sceneSelect.value) {
-          case 'void':
-            break;
-          case 'cube-sea':
-            scene.addNode(new CubeSeaNode());
-            break;
-          default:
-            scene.addNode(new Gltf2Node({url: `media/gltf/${sceneSelect.value}/${sceneSelect.value}.gltf`}));
-            break;
-        }
-        setScene(scene);
-      }
-      sceneSelect.addEventListener('change', onSceneSelected);
-      onSceneSelected();
-    </script>
-  </body>
-</html>
diff --git a/positional-audio.html b/positional-audio.html
index d5c0fc438..6e279773a 100644
--- a/positional-audio.html
+++ b/positional-audio.html
@@ -25,29 +25,14 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Positional Audio</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
 
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
     <script src="https://cdn.jsdelivr.net/npm/resonance-audio/build/resonance-audio.min.js"></script>
-
-    <script src='js/cottontail/build/cottontail.debug.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -61,20 +46,23 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {UrlTexture} from './js/render/core/texture.js';
+      import {ButtonNode} from './js/render/nodes/button.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {mat4, vec3} from './js/render/math/gl-matrix.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // Temporary
-      let hideStats = QueryArgs.getBool('hideStats', false);
 
       const DEFAULT_HEIGHT = 1.5;
       const ANALYSER_FFT_SIZE = 1024;
@@ -82,15 +70,12 @@
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
       let renderer = null;
       let scene = new Scene();
-      if (hideStats) {
-        scene.enableStats(false);
-      }
       scene.addNode(new Gltf2Node({url: 'media/gltf/garage/garage.gltf'}));
       scene.standingStats(true);
 
@@ -266,14 +251,14 @@
       });
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
@@ -310,26 +295,10 @@
             scene.addNode(playButton);
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -337,6 +306,14 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
 
         renderer = new Renderer(gl);
         scene.setRenderer(renderer);
@@ -344,14 +321,11 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -362,21 +336,24 @@
         session.addEventListener('selectstart', onSelectStart);
         session.addEventListener('selectend', onSelectEnd);
         session.addEventListener('select', (ev) => {
-          let refSpace = ev.frame.session.mode == "immersive-vr" ?
+          let refSpace = ev.frame.session.isImmersive ?
                            xrImmersiveRefSpace :
-                           xrNonImmersiveRefSpace;
+                           inlineViewerHelper.referenceSpace;
           scene.handleSelect(ev.inputSource, ev.frame, refSpace);
         });
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
           }
 
           session.requestAnimationFrame(onXRFrame);
@@ -388,8 +365,7 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
 
           // Stop the audio playback when we exit XR.
@@ -402,22 +378,20 @@
       let draggingTransform = mat4.create();
 
       function hitTest(inputSource, frame, refSpace) {
-        let inputPose = frame.getInputPose(inputSource, refSpace);
-        if (!inputPose) {
+        let targetRayPose = frame.getPose(inputSource.targetRaySpace, refSpace);
+        if (!targetRayPose) {
           return;
         }
 
-        if (inputPose.targetRay) {
-          let hitResult = scene.hitTest(inputPose.targetRay)
-          if (hitResult) {
-            for (let source of audioSources) {
-              if (hitResult.node ==  source.node) {
-                draggingSource = source;
-                draggingInput = inputSource;
-                mat4.invert(draggingTransform, inputPose.targetRay.transformMatrix);
-                mat4.multiply(draggingTransform, draggingTransform, source.node.matrix);
-                return true;
-              }
+        let hitResult = scene.hitTest(targetRayPose.transform);
+        if (hitResult) {
+          for (let source of audioSources) {
+            if (hitResult.node ==  source.node) {
+              draggingSource = source;
+              draggingInput = inputSource;
+              mat4.invert(draggingTransform, targetRayPose.transform.matrix);
+              mat4.multiply(draggingTransform, draggingTransform, source.node.matrix);
+              return true;
             }
           }
         }
@@ -426,9 +400,9 @@
       }
 
       function onSelectStart(ev) {
-        let refSpace = ev.frame.session.mode == "immersive-vr" ?
+        let refSpace = ev.frame.session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         hitTest(ev.inputSource, ev.frame, refSpace);
       }
 
@@ -440,9 +414,9 @@
       let tmpMatrix = mat4.create();
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -452,10 +426,10 @@
         scene.updateInputSources(frame, refSpace);
 
         if (draggingSource) {
-          let draggingPose = frame.getInputPose(draggingInput, refSpace);
+          let draggingPose = frame.getPose(draggingInput.targetRaySpace, refSpace);
           if (draggingPose) {
             let pos = draggingSource.position;
-            mat4.multiply(tmpMatrix, draggingPose.targetRay.transformMatrix, draggingTransform);
+            mat4.multiply(tmpMatrix, draggingPose.transform.matrix, draggingTransform);
             vec3.transformMat4(pos, [0, 0, 0], tmpMatrix);
             draggingSource.source.setPosition(pos[0], pos[1], pos[2]);
           }
@@ -466,7 +440,7 @@
         scene.drawXRFrame(frame, pose);
 
         if (pose) {
-          resonance.setListenerFromMatrix({ elements: pose.poseModelMatrix });
+          resonance.setListenerFromMatrix({ elements: pose.transform.matrix });
         }
 
         scene.endFrame();
@@ -474,7 +448,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/proposals/index.html b/proposals/index.html
index 41310ae48..116bb550d 100644
--- a/proposals/index.html
+++ b/proposals/index.html
@@ -73,6 +73,10 @@
       .github-link {
         font-size: 0.8em;
       }
+
+      .wordmark img {
+        width: 70%;
+      }
     </style>
 
     <!--[if lt IE 9]>
@@ -90,7 +94,11 @@
             <a href='../tests/'>Test Pages</a>
         </div>
 
-        <h1><a href='' class='wordmark'><span>WebXR</span></a></h1>
+        <h1>
+          <a href='' class='wordmark'>
+            <img src='../media/logo/webxr-logo.svg' alt='WebXR Logo'/>
+          </a>
+        </h1>
         <h2 class='tagline'>Proposals</h2>
       </header>
 
@@ -139,16 +147,6 @@ <h2 class='tagline'>Proposals</h2>
             let links = document.createElement('div');
             links.classList.add('links');
 
-            let liveLink = document.createElement('a');
-            liveLink.href = page.path;
-            liveLink.innerHTML = 'Open';
-            links.appendChild(liveLink);
-
-            let polyfillLink = document.createElement('a');
-            polyfillLink.href = page.path + '?allowPolyfill=1';
-            polyfillLink.innerHTML = 'Open with Polyfill';
-            links.appendChild(polyfillLink);
-
             let sourceLink = document.createElement('a');
             sourceLink.href = 'https://github.com/immersive-web/webxr-samples/blob/master/proposals/' + page.path;
             sourceLink.innerHTML = 'Source';
diff --git a/proposals/phone-ar-hit-test.html b/proposals/phone-ar-hit-test.html
index 36e4679b7..728bb3851 100644
--- a/proposals/phone-ar-hit-test.html
+++ b/proposals/phone-ar-hit-test.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>AR Hit Test</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -61,17 +46,16 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
+    <script type="module">
+      import {WebXRButton} from '../js/util/webxr-button.js';
+      import {Scene} from '../js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from '../js/render/core/renderer.js';
+      import {Node} from '../js/render/core/node.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {DropShadowNode} from '../js/render/nodes/drop-shadow.js';
+      import {vec3} from '../js/render/math/gl-matrix.js';
+      import {Ray} from '../js/render/math/ray.js';
 
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       let useReticle = document.getElementById('useReticle');
 
@@ -105,7 +89,7 @@
       scene.clear = false;
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession,
           textEnterXRTitle: "START AR",
@@ -115,14 +99,14 @@
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-ar').then(() => {
+          navigator.xr.supportsSession('immersive-ar').then(() => {
             xrButton.enabled = true;
           });
         }
       }
 
       function onRequestSession() {
-        navigator.xr.requestSession({ mode: 'immersive-ar' })
+        navigator.xr.requestSession('immersive-ar')
             .then((session) => {
               xrButton.setSession(session);
               onSessionStarted(session);
@@ -145,7 +129,7 @@
 
         session.baseLayer = new XRWebGLLayer(session, gl);
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
+        session.requestReferenceSpace('local').then((refSpace) => {
           xrRefSpace = refSpace;
           session.requestAnimationFrame(onXRFrame);
         });
@@ -189,26 +173,25 @@
         } else {
           // Otherwise we'll use the target ray from the input source that generated
           // this event to fire off a new hit test.
-          let inputPose = event.frame.getInputPose(event.inputSource, xrRefSpace);
-          if (!inputPose) {
+          let targetRayPose = event.frame.getPose(event.inputSource.targetRaySpace, xrRefSpace);
+          if (!targetRayPose) {
             return;
           }
 
-          if (inputPose.targetRay) {
-            vec3.set(rayOrigin,
-                inputPose.targetRay.origin.x,
-                inputPose.targetRay.origin.y,
-                inputPose.targetRay.origin.z);
-            vec3.set(rayDirection,
-                inputPose.targetRay.direction.x,
-                inputPose.targetRay.direction.y,
-                inputPose.targetRay.direction.z);
-            event.frame.session.requestHitTest(rayOrigin, rayDirection, xrRefSpace).then((results) => {
-              if (results.length) {
-                addARObjectAt(results[0].hitMatrix);
-              }
-            });
-          }
+          let targetRay = new Ray(targetRayPose.transform);
+          vec3.set(rayOrigin,
+              targetRay.origin.x,
+              targetRay.origin.y,
+              targetRay.origin.z);
+          vec3.set(rayDirection,
+              targetRay.direction.x,
+              targetRay.direction.y,
+              targetRay.direction.z);
+          event.frame.session.requestHitTest(rayOrigin, rayDirection, xrRefSpace).then((results) => {
+            if (results.length) {
+              addARObjectAt(results[0].hitMatrix);
+            }
+          });
         }
       }
 
@@ -220,12 +203,12 @@
         // If requested, use the pose to cast a reticle into the scene using a
         // continuous hit test. For the moment we're just using the flower
         // as the "reticle".
-        if (useReticle.checked && pose && pose.poseModelMatrix) {
+        if (useReticle.checked && pose) {
           vec3.set(rayOrigin, 0, 0, 0);
-          vec3.transformMat4(rayOrigin, rayOrigin, pose.poseModelMatrix);
+          vec3.transformMat4(rayOrigin, rayOrigin, pose.transform.matrix);
 
           vec3.set(rayDirection, 0, 0, -1);
-          vec3.transformMat4(rayDirection, rayDirection, pose.poseModelMatrix);
+          vec3.transformMat4(rayDirection, rayDirection, pose.transform.matrix);
           vec3.sub(rayDirection, rayDirection, rayOrigin);
           vec3.normalize(rayDirection, rayDirection);
 
@@ -254,7 +237,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/proposals/phone-ar.html b/proposals/phone-ar.html
index b5cbfb955..ec3bc2d50 100644
--- a/proposals/phone-ar.html
+++ b/proposals/phone-ar.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Phone AR</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -58,17 +43,11 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
+    <script type="module">
+      import {WebXRButton} from '../js/util/webxr-button.js';
+      import {Scene} from '../js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from '../js/render/core/renderer.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
 
       // XR globals.
       let xrButton = null;
@@ -89,7 +68,7 @@
       scene.clear = false;
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession,
           textEnterXRTitle: "START AR",
@@ -101,7 +80,7 @@
         if (navigator.xr) {
           // Checks to ensure that environment integration (AR) is available,
           // and only enables the button if so.
-          navigator.xr.supportsSessionMode('immersive-ar').then(() => {
+          navigator.xr.supportsSession('immersive-ar').then(() => {
             xrButton.enabled = true;
           });
         }
@@ -116,7 +95,7 @@
         // activation event so that appropriate permissions can be granted.
         // This will likely prompt the user to allow camera use, so the promise
         // may remain outstanding for a while.
-        navigator.xr.requestSession({ mode: 'immersive-ar' })
+        navigator.xr.requestSession('immersive-ar')
             .then((session) => {
               xrButton.setSession(session);
               onSessionStarted(session);
@@ -138,7 +117,7 @@
 
         session.baseLayer = new XRWebGLLayer(session, gl);
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
+        session.requestReferenceSpace('local').then((refSpace) => {
           xrRefSpace = refSpace;
           session.requestAnimationFrame(onXRFrame);
         });
@@ -168,7 +147,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/reduced-bind-rendering.html b/reduced-bind-rendering.html
index c64e9cb80..ee643a2bf 100644
--- a/reduced-bind-rendering.html
+++ b/reduced-bind-rendering.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Reduced Bind Rendering</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,22 +44,25 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene, WebXRView} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {CubeSeaNode} from './js/render/nodes/cube-sea.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -83,41 +71,21 @@
       scene.addNode(new CubeSeaNode());
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      // This kicks off a really simple fallback rendering loop so that we don't
-      // have to clutter up the sample code with fallback rendering logic. This
-      // variant also has the benefit of including simple support for looking
-      // around via clicking and dragging with the right mouse button or a two-
-      // finger drag.
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -125,6 +93,15 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
+
         // Set up a non-black clear color so that we can see if something renders wrong.
         gl.clearColor(0.1, 0.2, 0.3, 1.0);
 
@@ -134,14 +111,9 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr').then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -151,13 +123,18 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            // In most samples moving forward we'll use this helper class rather
+            // than the reference space directly to inject the necessary logic
+            // for looking around an inline session with mouse and touch input.
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
           }
           session.requestAnimationFrame(onXRFrame);
         });
@@ -168,17 +145,16 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -240,15 +216,11 @@
             // Gather all the values needed for one view and push it into the
             // array of views to be drawn. WebXRView is a utility class that
             // holds all the necessary values for drawing a single view.
-            let renderView = new WebXRView();
 
             // In future samples we'll hide this part away as well by using the
             // scene.drawXRViews() function, which handles gathering these
             // values internally.
-            renderView.projectionMatrix = view.projectionMatrix;
-            renderView.viewMatrix = view.viewMatrix;
-            renderView.viewport = glLayer.getViewport(view);
-            views.push(renderView);
+            views.push(new WebXRView(view, glLayer));
           }
 
           scene.drawViewArray(views);
@@ -258,7 +230,6 @@
       }
 
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/room-scale.html b/room-scale.html
index 2c8940c14..830a9fa79 100644
--- a/room-scale.html
+++ b/room-scale.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Room Scale</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,22 +44,27 @@
         </p>
       </summary>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {BoundsRenderer} from './js/render/nodes/bounds-renderer.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -84,47 +74,31 @@
       scene.addNode(new SkyboxNode({url: 'media/textures/eilenriede-park-2k.png'}));
       scene.standingStats(true);
 
+      let boundsRenderer = null;
+
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'],
+            optionalFeatures: ['bounded-floor']
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -136,6 +110,14 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
 
         renderer = new Renderer(gl);
 
@@ -147,26 +129,74 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        // Get a stage frame of reference, which will align the user's physical
-        // floor with Y=0 and can provide boundaries that indicate where the
-        // user can safely walk. If the system can't natively provide stage
-        // coordinates (for example, with a 3DoF device) then it will return an
-        // emulated stage, where the view is translated up by a static height so
-        // that the scene still renders in approximately the right place.
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
-            let boundsRenderer = new BoundsRenderer();
-            boundsRenderer.stageBounds = refSpace.bounds;
-            scene.addNode(boundsRenderer);
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            // If we're using a viewer reference space we need to scoot the
+            // origin down a bit to put the camera at approximately the right
+            // level. (Here we're moving it 1.6 meters, which is *very* roughly
+            // the eye height of an "average" adult human.)
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
+
+            // You can accomplish the same thing without the helper class by
+            // simply offseting the reference space with a negative y value:
+            // refSpace = refSpace.getOffsetReferenceSpace(new XRRigidTransform({y: -1.6}));
           }
-
           session.requestAnimationFrame(onXRFrame);
         });
+
+        /*function onRefSpaceCreated(refSpace) {
+          if (session.isImmersive) {
+            xrImmersiveRefSpace = refSpace;
+          } else {
+            xrInlineRefSpace = refSpace;
+          }
+
+          session.requestAnimationFrame(onXRFrame);
+        }
+
+        if (session.isImmersive) {
+          // Attempt to get a 'bounded-floor' reference space, which will align
+          // the user's physical floor with Y=0 and provide boundaries that
+          // indicate where the user can safely walk.
+          session.requestReferenceSpace('bounded-floor').then((refSpace) => {
+            if (!boundsRenderer) {
+              boundsRenderer = new BoundsRenderer(refSpace);
+              scene.addNode(boundsRenderer);
+            } else {
+              boundsRenderer.boundedRefSpace = refSpace;
+            }
+            onRefSpaceCreated(refSpace);
+          })
+          .catch(() => {
+            // If a bounded reference space isn't supported, fall back to a
+            // local-floor reference space. This still provides a floor-relative
+            // space and will always be supported for immersive sessions. It
+            // will not, however, provide boundaries and generally expects the
+            // user to stand in one place. If the device doesn't have a way of
+            // determining the floor level (for example, with a 3DoF device)
+            // then it will return an emulated local-floor space, where the view
+            // is translated up by a static height so that the scene still
+            // renders in approximately the right place.
+            console.log('Falling back to local-floor reference space');
+            session.requestReferenceSpace('local-floor').then(onRefSpaceCreated);
+          });
+        } else {
+          session.requestReferenceSpace('viewer').then((refSpace) => {
+            // If we're using a viewer reference space we need to scoot the
+            // origin down a bit to put the camera at approximately the right
+            // level. (Here we're moving it 1.6 meters, which is *very* roughly
+            // the eye height of an "average" adult human.)
+            onRefSpaceCreated(refSpace.getOffsetReferenceSpace(
+                new XRRigidTransform({y: -1.6})));
+          });
+        }*/
       }
 
       function onEndSession(session) {
@@ -174,17 +204,16 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -202,7 +231,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/spectator-mode.html b/spectator-mode.html
index 52ca40f1e..02ea8ee46 100644
--- a/spectator-mode.html
+++ b/spectator-mode.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Spectator Mode</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -61,25 +46,28 @@
     </header>
     <main style='text-align: center;'>
     </main>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {mat4, quat} from './js/render/math/gl-matrix.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
-      let outputCanvas = null;
       let gl = null;
       let renderer = null;
       let scene = new Scene();
@@ -91,43 +79,36 @@
       let spectatorMode = false;
       let spectatorButton = null;
       let spectatorProjectionMatrix = mat4.create();
-      let spectatorViewMatrix = mat4.create();
+      let spectatorQuat = quat.create();
       let headset = null;
 
+      // Set up a view point in a corner of the garage scene near
+      // near the ceiling and looking down at the origin/user.
+      quat.rotateY(spectatorQuat, spectatorQuat, Math.PI * -0.25);
+      quat.rotateX(spectatorQuat, spectatorQuat, Math.PI * -0.15);
+      const spectatorTransform = new XRRigidTransform(
+        {x: -1.75, y: 2.0, z: 1.75},
+        {x: spectatorQuat[0], y: spectatorQuat[1], z: spectatorQuat[2], w: spectatorQuat[3]}
+      );
+
       let mainElement = document.querySelector('main');
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -135,19 +116,22 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        onResize();
+        window.addEventListener('resize', onResize);
 
         renderer = new Renderer(gl);
         scene.setRenderer(renderer);
         scene.inputRenderer.setControllerMesh(new Gltf2Node({url: 'media/gltf/controller/controller.gltf'}));
-
-        // Because we may be rendering to the gl context's backbuffer now we
-        // need to start monitoring resize events to manage it's size.
-        window.addEventListener('resize', onResize);
       }
 
       function onRequestSession() {
-        navigator.xr.requestSession({ mode: 'immersive-vr' }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
 
           // When the exclusive session starts, add a button to the page that
@@ -163,7 +147,7 @@
 
           // Hide the non-exclusive session's output canvas so that we can see
           // the button.
-          outputCanvas.style.display = 'none';
+          gl.canvas.style.display = 'none';
         });
       }
 
@@ -172,13 +156,16 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local-floor' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
+            inlineViewerHelper.setHeight(1.6);
           }
 
           session.requestAnimationFrame(onXRFrame);
@@ -190,14 +177,12 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
 
-          // When we exit the exclusive session, stop presenting the spectator
-          // view and remove the WebGL canvas from the document.
+          // When we exit the inline session stop presenting the spectator view.
           if (spectatorMode) {
             spectatorMode = false;
-            document.body.removeChild(gl.canvas);
           }
 
           // Remove the spectator button if needed.
@@ -206,8 +191,8 @@
             spectatorButton = null;
           }
 
-          // Show the non-exclusive session's output canvas again.
-          outputCanvas.style.display = '';
+          // Show the WebGL canvas again if it was hidden.
+          gl.canvas.style.display = '';
         }
       }
 
@@ -215,9 +200,9 @@
       function onEnableSpectatorMode() {
         spectatorMode = true;
 
-        // Append the WebGL context's canvas to the page so that we can render
-        // directly to it.
-        document.body.appendChild(gl.canvas);
+        // Show the WebGL canvas
+        gl.canvas.style.display = '';
+
         onResize();
 
         // Remove the spectator button, since it's no longer needed. You could
@@ -235,20 +220,22 @@
       }
 
       function onResize () {
+        let scaleFactor = window.devicePixelRatio;
         if (spectatorMode) {
           // The spectator view does take time to render, and can impact the
           // performance of the in-headset view. To help mitigate that, we'll
           // draw the spectator view at half the native resolution.
-          gl.canvas.width = (gl.canvas.offsetWidth * window.devicePixelRatio) / 2.0;
-          gl.canvas.height = (gl.canvas.offsetHeight * window.devicePixelRatio) / 2.0;
+          scaleFactor /= 2.0;
         }
+        gl.canvas.width = (gl.canvas.offsetWidth * scaleFactor);
+        gl.canvas.height = (gl.canvas.offsetHeight * scaleFactor);
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -261,7 +248,7 @@
 
         // If spectator mode is active, draw a 3rd person view of the scene to
         // the WebGL context's default backbuffer.
-        if (spectatorMode) {
+        if (spectatorMode && pose) {
           // Bind the WebGL context's default framebuffer, so that the rendered
           // content shows up in the canvas element.
           gl.bindFramebuffer(gl.FRAMEBUFFER, null);
@@ -273,26 +260,20 @@
           gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
 
           // Set up a sensible projection matrix for the canvas
-          mat4.perspective(spectatorProjectionMatrix, Math.PI*0.4, gl.drawingBufferWidth / gl.drawingBufferHeight, session.depthNear, session.depthFar);
-
-          // Set up a view matrix that gives us a 3rd-person view of the scene.
-          // In this case it's positioned in a corner of the garage scene near
-          // near the ceiling and looking down at the user.
-          mat4.identity(spectatorViewMatrix);
-          mat4.translate(spectatorViewMatrix, spectatorViewMatrix, [-1.75, 2.0, 1.75]);
-          mat4.rotateY(spectatorViewMatrix, spectatorViewMatrix, Math.PI * -0.25);
-          mat4.rotateX(spectatorViewMatrix, spectatorViewMatrix, Math.PI * -0.15);
-          mat4.invert(spectatorViewMatrix, spectatorViewMatrix);
+          mat4.perspective(spectatorProjectionMatrix, Math.PI*0.4,
+                           gl.drawingBufferWidth / gl.drawingBufferHeight,
+                           session.renderState.depthNear,
+                           session.renderState.depthFar);
 
           // Update the headset's pose to match the user's and make it visible
           // for this draw.
           if (headset) {
             headset.visible = true;
-            headset.matrix = pose.poseModelMatrix;
+            headset.matrix = pose.transform.matrix;
           }
 
           // Draw the spectator view of the scene.
-          scene.draw(spectatorProjectionMatrix, spectatorViewMatrix);
+          scene.draw(spectatorProjectionMatrix, spectatorTransform);
 
           // Ensure the headset isn't visible in the VR view.
           if (headset) {
@@ -305,7 +286,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/stereo-video.html b/stereo-video.html
index f1719ad4f..de94fad81 100644
--- a/stereo-video.html
+++ b/stereo-video.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Stereo Video Player</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -57,22 +42,28 @@
         </p>
       </summary>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {UrlTexture} from './js/render/core/texture.js';
+      import {ButtonNode} from './js/render/nodes/button.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {VideoNode} from './js/render/nodes/video.js';
+      import {InlineViewerHelper} from './js/util/inline-viewer-helper.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -95,6 +86,9 @@
         if (!video.paused) {
           playButton.visible = true;
           video.pause();
+        } else {
+          playButton.visible = false;
+          video.play();
         }
       });
       videoNode.selectable = true;
@@ -129,41 +123,26 @@
       });
       // Move the play button to the center of the screen and make it much
       // bigger.
-      playButton.translation = [0.025, 0.275, -4.3];
+      playButton.translation = [0.025, 0.275, -4.2];
       playButton.scale = [5.0, 5.0, 5.0];
       scene.addNode(playButton);
 
       function initXR() {
-        xrButton = new XRDeviceButton({
+        xrButton = new WebXRButton({
           onRequestSession: onRequestSession,
           onEndSession: onEndSession
         });
         document.querySelector('header').appendChild(xrButton.domElement);
 
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             xrButton.enabled = true;
           });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          navigator.xr.requestSession('inline').then(onSessionStarted);
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -171,6 +150,14 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
 
         renderer = new Renderer(gl);
         scene.setRenderer(renderer);
@@ -178,14 +165,11 @@
       }
 
       function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -193,25 +177,27 @@
       function onSessionStarted(session) {
         session.addEventListener('end', onSessionEnded);
         session.addEventListener('select', (ev) => {
-          let refSpace = ev.frame.session.mode == "immersive-vr" ?
+          let refSpace = ev.frame.session.isImmersive ?
                            xrImmersiveRefSpace :
-                           xrNonImmersiveRefSpace;
+                           inlineViewerHelper.referenceSpace;
           scene.handleSelect(ev.inputSource, ev.frame, refSpace);
         });
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
 
-        // In this case we're going to use an eye-level frame of reference
+        // In this case we're going to use an 'local' frame of reference
         // because we want to users head to appear in the right place relative
         // to the center chair, as if they're sitting in it, rather than
         // somewhere in the room relative to the floor.
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
           }
 
           session.requestAnimationFrame(onXRFrame);
@@ -223,17 +209,16 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
+        if (event.session.isImmersive) {
           xrButton.setSession(null);
         }
       }
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         scene.startFrame();
@@ -249,7 +234,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/teleportation.html b/teleportation.html
new file mode 100644
index 000000000..5d2d69459
--- /dev/null
+++ b/teleportation.html
@@ -0,0 +1,416 @@
+<!doctype html>
+<!--
+Copyright 2019 The Immersive Web Community Group
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+-->
+<html>
+  <head>
+    <meta charset='utf-8'>
+    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
+    <meta name='mobile-web-app-capable' content='yes'>
+    <meta name='apple-mobile-web-app-capable' content='yes'>
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
+
+    <title>Teleportation</title>
+
+    <link href='css/common.css' rel='stylesheet'></link>
+  </head>
+  <body>
+    <header>
+      <details open>
+        <summary>Teleportation</summary>
+        <p>
+          This sample demonstrates teleporting the viewer by updating the
+          XRSession reference space. Select a point on the floor with a
+          controller to teleport to it. Select the leftmost box to rotate to the
+          left by 30 degrees. Selecting the rightmost box rotates the viewer by
+          30 degress to the right. Select the middle box to reset the
+          viewer orientation.
+          <a class="back" href="./index.html">Back</a>
+        </p>
+      </details>
+    </header>
+    <script type="module">
+      import {WebXRButton} from './js/util/webxr-button.js';
+      import {Scene} from './js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from './js/render/core/renderer.js';
+      import {Node} from './js/render/core/node.js';
+      import {Gltf2Node} from './js/render/nodes/gltf2.js';
+      import {SkyboxNode} from './js/render/nodes/skybox.js';
+      import {BoxBuilder} from './js/render/geometry/box-builder.js';
+      import {PbrMaterial} from './js/render/materials/pbr.js';
+      import {mat4, vec3, quat} from './js/render/math/gl-matrix.js';
+      import {QueryArgs} from './js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from './js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
+      }
+
+      // If requested, don't display the frame rate info.
+      let hideStats = QueryArgs.getBool('hideStats', false);
+
+      // XR globals. Several additional reference spaces are required because of
+      // how the teleportation mechanic in onSelect works.
+      let xrButton = null;
+      let xrImmersiveRefSpaceBase = null;
+      let xrImmersiveRefSpaceOffset = null;
+      let xrInlineRefSpaceBase = null;
+      let xrInlineRefSpaceOffset = null;
+      let xrViewerSpaces = {};
+
+      let trackingSpaceOriginInWorldSpace = vec3.create();
+      let trackingSpaceHeadingDegrees = 0;  // around +Y axis, positive angles rotate left
+      let floorSize = 10;
+      let floorPosition = [0, -floorSize / 2 + 0.01, 0];
+      let floorNode = null;
+
+      // WebGL scene globals.
+      let gl = null;
+      let renderer = null;
+      let scene = new Scene();
+      if (hideStats) {
+        scene.enableStats(false);
+      }
+      scene.addNode(new Gltf2Node({url: 'media/gltf/cube-room/cube-room.gltf'}));
+      scene.standingStats(true);
+
+      let boxes = [];
+
+      function initXR() {
+        xrButton = new WebXRButton({
+          onRequestSession: onRequestSession,
+          onEndSession: onEndSession
+        });
+        document.querySelector('header').appendChild(xrButton.domElement);
+
+        if (navigator.xr) {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
+            xrButton.enabled = true;
+          });
+
+          navigator.xr.requestSession('inline').then(onSessionStarted);
+        }
+      }
+
+      function addBox(x, y, z, r, g, b, box_list) {
+        let boxBuilder = new BoxBuilder();
+        boxBuilder.pushCube([0, 0, 0], 0.4);
+        let boxPrimitive = boxBuilder.finishPrimitive(renderer);
+        let boxMaterial = new PbrMaterial();
+        boxMaterial.baseColorFactor.value = [r, g, b, 1.0];
+        let boxRenderPrimitive = renderer.createRenderPrimitive(boxPrimitive, boxMaterial);
+        let boxNode = new Node();
+        boxNode.addRenderPrimitive(boxRenderPrimitive);
+        // Marks the node as one that needs to be checked when hit testing.
+        boxNode.selectable = true;
+        box_list.push({
+          node: boxNode,
+          renderPrimitive: boxRenderPrimitive,
+          position: [x, y, z]
+        });
+        scene.addNode(boxNode);
+      }
+
+      function addFloorBox() {
+        let boxBuilder = new BoxBuilder();
+        boxBuilder.pushCube([0, 0, 0], floorSize);
+        let boxPrimitive = boxBuilder.finishPrimitive(renderer);
+
+        let boxMaterial = new PbrMaterial();
+        boxMaterial.baseColorFactor.value = [0.3, 0.3, 0.3, 1.0];
+        let boxRenderPrimitive = renderer.createRenderPrimitive(boxPrimitive, boxMaterial);
+
+        floorNode = new Node();
+        floorNode.addRenderPrimitive(boxRenderPrimitive);
+        floorNode.selectable = true;
+        scene.addNode(floorNode);
+        mat4.identity(floorNode.matrix);
+        mat4.translate(floorNode.matrix, floorNode.matrix, floorPosition);
+      }
+
+      function initGL() {
+        if (gl)
+          return;
+
+          gl = createWebGLContext({
+          xrCompatible: true
+        });
+        document.body.appendChild(gl.canvas);
+
+        function onResize() {
+          gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+          gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+        }
+        window.addEventListener('resize', onResize);
+        onResize();
+
+        renderer = new Renderer(gl);
+
+        scene.setRenderer(renderer);
+        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: 'media/gltf/controller/controller.gltf'}));
+
+        // Create several boxes to use for hit testing.
+        addBox(-1.0, 1.6, -1.3, 1.0, 0.0, 0.0, boxes);
+        addBox(0.0, 1.7, -1.5, 0.0, 1.0, 0.0, boxes);
+        addBox(1.0, 1.6, -1.3, 0.0, 0.0, 1.0, boxes);
+
+        // Represent the floor as a box so that we can perform a hit test
+        // against it onSelect so that we can teleport the user to that
+        // particular location.
+        addFloorBox();
+      }
+
+      function onRequestSession() {
+        navigator.xr.requestSession('immersive-vr', {
+            requiredFeatures: ['local-floor'] 
+        }).then((session) => {
+          xrButton.setSession(session);
+          session.isImmersive = true;
+          onSessionStarted(session);
+        });
+      }
+
+      function onSessionStarted(session) {
+        session.addEventListener('end', onSessionEnded);
+
+        // By listening for the 'select' event we can find out when the user has
+        // performed some sort of primary input action and respond to it.
+        session.addEventListener('select', onSelect);
+
+        initGL();
+
+        let glLayer = new XRWebGLLayer(session, gl);
+        session.updateRenderState({ baseLayer: glLayer });
+
+        session.requestReferenceSpace('local-floor').then((refSpace) => {
+          console.log("created local-floor reference space");
+          return refSpace;
+        }, (e) => {
+          if (!session.isImmersive) {
+            // If we're in inline mode, our underlying platform may not support
+            // the local-floor reference space, but a viewer space is guaranteed.
+            console.log("falling back to viewer reference space");
+            return session.requestReferenceSpace('viewer').then((viewerRefSpace) => {
+              // Adjust the viewer space for an estimated user height. Otherwise,
+              // the poses queried with this space will originate from the floor.
+              let xform = new XRRigidTransform({x: 0, y: -1.5, z: 0});
+              return viewerRefSpace.getOffsetReferenceSpace(xform);
+            });
+          } else {
+            throw e;
+          }
+        }).then((refSpace) => {
+          // Save the session-specific base reference space, and apply the current
+          // player orientation/position as originOffset. This reference space
+          // won't change for the duration of the session and is used when
+          // updating the player position and/or orientation in onSelect.
+          setRefSpace(session, refSpace, false);
+          updateOriginOffset(session);
+
+          session.requestReferenceSpace('viewer').then(function(viewerSpace){
+            // Save a separate reference space that represents the tracking space
+            // origin, which does not change for the duration of the session.
+            // This is used when updating the player position and/or orientation
+            // in onSelect.
+            xrViewerSpaces[session.mode] = viewerSpace;
+            session.requestAnimationFrame(onXRFrame);
+          });
+        });
+      }
+
+      // Used for updating the origin offset.
+      let playerInWorldSpaceOld = vec3.create();
+      let playerInWorldSpaceNew = vec3.create();
+      let playerOffsetInWorldSpaceOld = vec3.create();
+      let playerOffsetInWorldSpaceNew = vec3.create();
+      let rotationDeltaQuat = quat.create();
+      let invPosition = vec3.create();
+      let invOrientation = quat.create();
+
+      // If the user selected a point on the floor, teleport them to that
+      // position while keeping their orientation the same.
+      // Otherwise, check if one of the boxes was selected and update the
+      // user's orientation accordingly:
+      //    left box: turn left by 30 degress
+      //    center box: reset orientation
+      //    right box: turn right by 30 degrees
+      function onSelect(ev) {
+        let session = ev.frame.session;
+        let refSpace = getRefSpace(session, true);
+
+        let headPose = ev.frame.getPose(xrViewerSpaces[session.mode], refSpace);
+        if (!headPose) return;
+
+        // Get the position offset in world space from the tracking space origin
+        // to the player's feet. The headPose position is the head position in world space.
+        // Subtract the tracking space origin position in world space to get a relative world space vector.
+        vec3.set(playerInWorldSpaceOld, headPose.transform.position.x, 0, headPose.transform.position.z);
+        vec3.sub(
+          playerOffsetInWorldSpaceOld,
+          playerInWorldSpaceOld,
+          trackingSpaceOriginInWorldSpace);
+
+        // based on https://github.com/immersive-web/webxr/blob/master/input-explainer.md#targeting-ray-pose
+        let inputSourcePose = ev.frame.getPose(ev.inputSource.targetRaySpace, refSpace);
+        if (!inputSourcePose) {
+          return;
+        }
+
+        vec3.copy(playerInWorldSpaceNew, playerInWorldSpaceOld);
+        let rotationDelta = 0;
+
+        // Hit test results can change teleport position and orientation.
+        let hitResult = scene.hitTest(inputSourcePose.transform);
+        if (hitResult) {
+          // Check to see if the hit result was one of our boxes.
+          for (let i = 0; i < boxes.length; ++i) {
+            let box = boxes[i];
+            if (hitResult.node == box.node) {
+              // Change the box color to something random.
+              let uniforms = box.renderPrimitive.uniforms;
+              uniforms.baseColorFactor.value = [Math.random(), Math.random(), Math.random(), 1.0];
+              if (i == 0) {
+                // turn left
+                rotationDelta = 30;
+              } else if (i == 1) {
+                // reset heading by undoing the current rotation
+                rotationDelta = -trackingSpaceHeadingDegrees;
+              } else if (i == 2) {
+                // turn right
+                rotationDelta = -30;
+              }
+              console.log('rotate by', rotationDelta);
+            }
+          }
+          if (hitResult.node == floorNode) {
+             // New position uses x/z values of the hit test result, keeping y at 0 (floor level)
+             playerInWorldSpaceNew[0] = hitResult.intersection[0];
+             playerInWorldSpaceNew[1] = 0;
+             playerInWorldSpaceNew[2] = hitResult.intersection[2];
+             console.log('teleport to', playerInWorldSpaceNew);
+          }
+        }
+
+        // Get the new world space offset vector from tracking space origin
+        // to the player's feet, for the updated tracking space rotation.
+        // Formally, this is the old world-space player offset transformed
+        // into tracking space using the old originOffset's rotation component,
+        // then transformed back into world space using the inverse of the
+        // new originOffset. This simplifies to a rotation of the old player
+        // offset by (new angle - old angle):
+        //   worldOffsetNew = inv(rot_of(originoffsetNew)) * rot_of(originoffsetOld) * worldOffsetOld
+        //       = inv(rotY(-angleNew)) * rotY(-angleOld) * worldOffsetOld
+        //       = rotY(angleNew) * rotY(-angleOld) * worldOffsetOld
+        //       = rotY(angleNew - angleOld) * worldOffsetOld
+        quat.identity(rotationDeltaQuat);
+        quat.rotateY(rotationDeltaQuat, rotationDeltaQuat, rotationDelta * Math.PI / 180);
+        vec3.transformQuat(playerOffsetInWorldSpaceNew, playerOffsetInWorldSpaceOld, rotationDeltaQuat);
+        trackingSpaceHeadingDegrees += rotationDelta;
+
+        // Update tracking space origin so that origin + playerOffset == player location in world space
+        vec3.sub(
+          trackingSpaceOriginInWorldSpace,
+          playerInWorldSpaceNew,
+          playerOffsetInWorldSpaceNew);
+
+        updateOriginOffset(session);
+      }
+
+      function updateOriginOffset(session) {
+        // Compute the origin offset based on player position/orientation.
+        quat.identity(invOrientation);
+        quat.rotateY(invOrientation, invOrientation, -trackingSpaceHeadingDegrees * Math.PI / 180);
+        vec3.negate(invPosition, trackingSpaceOriginInWorldSpace);
+        vec3.transformQuat(invPosition, invPosition, invOrientation);
+        let xform = new XRRigidTransform(
+          {x: invPosition[0], y: invPosition[1], z: invPosition[2]},
+          {x: invOrientation[0], y: invOrientation[1], z: invOrientation[2], w: invOrientation[3]});
+
+        // Update offset reference to use a new originOffset with the teleported
+        // player position and orientation.
+        // This new offset needs to be applied to the base ref space.
+        let refSpace = getRefSpace(session, false).getOffsetReferenceSpace(xform);
+        setRefSpace(session, refSpace, true);
+
+        console.log('teleport to', trackingSpaceOriginInWorldSpace);
+      }
+
+      function onEndSession(session) {
+        session.end();
+      }
+
+      function onSessionEnded(event) {
+        if (event.session.isImmersive) {
+          xrButton.setSession(null);
+        }
+      }
+
+      function getRefSpace(session, isOffset) {
+        return session.isImmersive ?
+              (isOffset ? xrImmersiveRefSpaceOffset : xrImmersiveRefSpaceBase) :
+              (isOffset ? xrInlineRefSpaceOffset : xrInlineRefSpaceBase);
+      }
+
+      function setRefSpace(session, refSpace, isOffset) {
+        if (session.isImmersive) {
+          if (isOffset) {
+            xrImmersiveRefSpaceOffset = refSpace;
+          } else {
+            xrImmersiveRefSpaceBase = refSpace;
+          }
+        } else {
+          if (isOffset) {
+            xrInlineRefSpaceOffset = refSpace;
+          } else {
+            xrInlineRefSpaceBase = refSpace;
+          }
+        }
+      }
+
+      function onXRFrame(time, frame) {
+        let session = frame.session;
+        let refSpace = getRefSpace(session, true);
+
+        let pose = frame.getViewerPose(refSpace);
+        scene.startFrame();
+        session.requestAnimationFrame(onXRFrame);
+
+        // Update the matrix for each box
+        for (let box of boxes) {
+          let node = box.node;
+          mat4.identity(node.matrix);
+          mat4.translate(node.matrix, node.matrix, box.position);
+          mat4.rotateX(node.matrix, node.matrix, time/1000);
+          mat4.rotateY(node.matrix, node.matrix, time/1500);
+        }
+
+        scene.updateInputSources(frame, refSpace);
+        scene.drawXRFrame(frame, pose);
+        scene.endFrame();
+      }
+
+      // Start the XR application.
+      initXR();
+    </script>
+  </body>
+</html>
\ No newline at end of file
diff --git a/tests/cube-sea.html b/tests/cube-sea.html
index 3e13e7a69..55f38619b 100644
--- a/tests/cube-sea.html
+++ b/tests/cube-sea.html
@@ -25,28 +25,14 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Cube Sea</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
 
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
     <script src='../js/third-party/dat.gui.min.js'></script>
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,17 +45,21 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRButton} from '../js/util/webxr-button.js';
+      import {Scene} from '../js/render/scenes/scene.js';
+      import {Renderer, createWebGLContext} from '../js/render/core/renderer.js';
+      import {CubeSeaNode} from '../js/render/nodes/cube-sea.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {InlineViewerHelper} from '../js/util/inline-viewer-helper.js';
+      import {QueryArgs} from '../js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       // Helper methods for saving dat.gui-edited parameters in the URL hash.
       // Only non-default values are saved.
@@ -162,18 +152,12 @@
         // Framebuffer scale override. 1 = default
         framebufferScale: getFloatParam('framebufferScale', 1),
 
-        // Viewport scale
-        viewportScale: getFloatParam('viewportScale', 1),
-
         // Immersive AR mode
         arMode: getBoolParam('arMode', false),
 
         // Use an inline canvas for "magic window" mode?
         magicWindow: getBoolParam('magicWindow', true),
 
-        // Use a mirror canvas during immersive mode?
-        mirrorCanvas: getBoolParam('mirrorCanvas', true),
-
         // Don't produce frames at all. Simulates a broken app.
         noFrames: getBoolParam('noFrames', false),
 
@@ -212,16 +196,12 @@
       var folderRender = gui.addFolder('Rendering options');
       folderRender.add(appSettings, 'framebufferScale', 0, 2, 0.25).onFinishChange(
           getParamSaver('framebufferScale'));
-      folderRender.add(appSettings, 'viewportScale', 0.25, 1, 0.125).onFinishChange(
-          getParamSaver('viewportScale'));
       folderRender.add(appSettings, 'antialias').onFinishChange(
           getParamSaver('antialias'));
       folderRender.add(appSettings, 'arMode').onFinishChange(
           getParamSaver('arMode', () => { window.location.reload(false); }));
       folderRender.add(appSettings, 'magicWindow').onFinishChange(
           getParamSaver('magicWindow', () => { window.location.reload(false); }));
-      folderRender.add(appSettings, 'mirrorCanvas').onFinishChange(
-          getParamSaver('mirrorCanvas'));
       folderRender.open();
 
       var folderTest = gui.addFolder('Regression testing');
@@ -254,7 +234,7 @@
       // XR globals.
       let xrButton = null;
       let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      let inlineViewerHelper = null;
 
       // WebGL scene globals.
       let gl = null;
@@ -272,36 +252,22 @@
           buttonOptions.textXRNotFoundTitle = "AR NOT FOUND";
           buttonOptions.textExitXRTitle = "EXIT  AR";
         }
-        xrButton = new XRDeviceButton(buttonOptions);
+        xrButton = new WebXRButton(buttonOptions);
         document.querySelector('header').appendChild(xrButton.domElement);
 
         let xrMode = appSettings.arMode ? 'immersive-ar' : 'immersive-vr';
         if (navigator.xr) {
-          navigator.xr.supportsSessionMode(xrMode).then(() => {
+          navigator.xr.supportsSession(xrMode).then(() => {
             xrButton.enabled = true;
           });
 
           // Set up "magic window" mode.
           if (appSettings.magicWindow) {
-            let outputCanvas = document.createElement('canvas');
-            let ctx = outputCanvas.getContext('xrpresent');
-            navigator.xr.requestSession({outputContext: ctx})
-                .then((session) => {
-                  document.body.appendChild(outputCanvas);
-                  onSessionStarted(session);
-                });
+            navigator.xr.requestSession('inline').then(onSessionStarted);
           }
-        } else {
-          initFallback();
         }
       }
 
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-      }
-
       function initGL() {
         if (gl)
           return;
@@ -309,6 +275,16 @@
         gl = createWebGLContext({
           xrCompatible: true
         });
+        if (appSettings.magicWindow) {
+          document.body.appendChild(gl.canvas);
+
+          function onResize() {
+            gl.canvas.width = gl.canvas.clientWidth * window.devicePixelRatio;
+            gl.canvas.height = gl.canvas.clientHeight * window.devicePixelRatio;
+          }
+          window.addEventListener('resize', onResize);
+          onResize();
+        }
 
         // Set up a non-black clear color so that we can see if something renders wrong.
         gl.clearColor(0.1, 0.2, 0.3, 1.0);
@@ -319,15 +295,10 @@
       }
 
       function onRequestSession() {
-        let xrOptions = { mode: appSettings.arMode ? 'immersive-ar' : 'immersive-vr' };
-        if (appSettings.mirrorCanvas) {
-          let mirrorCanvas = document.createElement('canvas');
-          xrOptions.outputContext = mirrorCanvas.getContext('xrpresent');
-          mirrorCanvas.setAttribute('id', 'mirror-canvas');
-          document.body.appendChild(mirrorCanvas);
-        }
-        navigator.xr.requestSession(xrOptions).then((session) => {
+        let xrMode = appSettings.arMode ? 'immersive-ar' : 'immersive-vr';
+        navigator.xr.requestSession(xrMode).then((session) => {
           xrButton.setSession(session);
+          session.isImmersive = true;
           onSessionStarted(session);
         });
       }
@@ -337,15 +308,18 @@
 
         initGL();
 
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl, {
+        let glLayer = new XRWebGLLayer(session, gl, {
           framebufferScaleFactor: appSettings.framebufferScale,
-          antialias: appSettings.antialias}) });
+          antialias: appSettings.antialias
+        });
+        session.updateRenderState({ baseLayer: glLayer });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
+        let refSpaceType = session.isImmersive ? 'local' : 'viewer';
+        session.requestReferenceSpace(refSpaceType).then((refSpace) => {
+          if (session.isImmersive) {
             xrImmersiveRefSpace = refSpace;
           } else {
-            xrNonImmersiveRefSpace = refSpace;
+            inlineViewerHelper = new InlineViewerHelper(gl.canvas, refSpace);
           }
           session.requestAnimationFrame(onXRFrame);
         });
@@ -356,9 +330,6 @@
       }
 
       function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr" && appSettings.mirrorCanvas) {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-        }
         xrButton.setSession(null);
       }
 
@@ -367,9 +338,9 @@
 
       function onXRFrame(t, frame) {
         let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
+        let refSpace = session.isImmersive ?
                          xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
+                         inlineViewerHelper.referenceSpace;
         let pose = frame.getViewerPose(refSpace);
 
         frameNum++;
@@ -385,8 +356,6 @@
           }
         }
 
-        session.renderState.baseLayer.requestViewportScaling(appSettings.viewportScale);
-
         session.requestAnimationFrame(onXRFrame);
 
         // Simulate a poorly designed app that doesn't provide frames.
@@ -414,7 +383,6 @@
 
       // Start the XR application.
       initXR();
-      })();
     </script>
   </body>
 </html>
diff --git a/tests/index.html b/tests/index.html
index d975c8d9c..1e2171692 100644
--- a/tests/index.html
+++ b/tests/index.html
@@ -73,6 +73,10 @@
       .github-link {
         font-size: 0.8em;
       }
+
+      .wordmark img {
+        width: 70%;
+      }
     </style>
 
     <!--[if lt IE 9]>
@@ -86,11 +90,15 @@
       <header class='header'>
         <div id='nav'>
             <a href='../'>Samples</a>
-            <a href='../proposals/'>Proposals</a>
+            <!--a href='../proposals/'>Proposals</a-->
             <a href='./' class='selected'>Test Pages</a>
         </div>
 
-        <h1><a href='' class='wordmark'><span>WebXR</span></a></h1>
+        <h1>
+          <a href='' class='wordmark'>
+            <img src='../media/logo/webxr-logo.svg' alt='WebXR Logo'/>
+          </a>
+        </h1>
         <h2 class='tagline'>Test Pages</h2>
       </header>
 
@@ -150,21 +158,18 @@ <h2 class='tagline'>Test Pages</h2>
             let links = document.createElement('div');
             links.classList.add('links');
 
-            let liveLink = document.createElement('a');
-            liveLink.href = page.path;
-            liveLink.innerHTML = 'Open';
-            links.appendChild(liveLink);
-
-            let polyfillLink = document.createElement('a');
-            polyfillLink.href = page.path + '?allowPolyfill=1';
-            polyfillLink.innerHTML = 'Open with Polyfill';
-            links.appendChild(polyfillLink);
-
             let sourceLink = document.createElement('a');
             sourceLink.href = 'https://github.com/immersive-web/webxr-samples/blob/master/tests/' + page.path;
             sourceLink.innerHTML = 'Source';
             links.appendChild(sourceLink);
 
+            if (!page.noPolyfill) {
+              let polyfillLink = document.createElement('a');
+              polyfillLink.href = page.path + '?usePolyfill=1';
+              polyfillLink.innerHTML = 'Run with Polyfill';
+              links.appendChild(polyfillLink);
+            }
+
             article.appendChild(links);
 
             mainElement.appendChild(article);
diff --git a/tests/offscreen-canvas.html b/tests/offscreen-canvas.html
index b70143062..b54950996 100644
--- a/tests/offscreen-canvas.html
+++ b/tests/offscreen-canvas.html
@@ -25,28 +25,14 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Offscreen Canvas</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
 
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
     <script src='../js/third-party/dat.gui.min.js'></script>
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -59,129 +45,41 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRSampleApp} from '../js/webxr-sample-app.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {SkyboxNode} from '../js/render/nodes/skybox.js';
+      import {QueryArgs} from '../js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new Gltf2Node({url: '../media/gltf/space/space.gltf'}));
-      scene.addNode(new SkyboxNode({url: '../media/textures/milky-way-4k.png'}));
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
+      // WebXR sample app setup
+      class CustomWebXRSampleApp extends WebXRSampleApp {
+        onCreateGL() {
+          // This sample will create an offscreen canvas for WebGL rather than
+          // the usual canvas Dom element.
+          let offscreenCanvas = new OffscreenCanvas(16, 16);
+          return offscreenCanvas.getContext('webgl', {
+            xrCompatible: true
           });
-
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({outputContext: ctx})
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
         }
-      }
-
-      function initGL() {
-        if (gl)
-          return;
-
-        let offscreenCanvas = new OffscreenCanvas(16, 16);
-        gl = offscreenCanvas.getContext('webgl', {
-          xrCompatible: true
-        });
+      };
 
-        renderer = new Renderer(gl);
-        scene.setRenderer(renderer);
-        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: '../media/gltf/controller/controller.gltf'}));
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
+      let app = new CustomWebXRSampleApp({
+        controllerMesh: new Gltf2Node({url: '../media/gltf/controller/controller.gltf'})
+      });
+      document.querySelector('header').appendChild(app.xrButton.domElement);
 
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        scene.updateInputSources(frame, refSpace);
-
-        scene.drawXRFrame(frame, pose);
-
-        scene.endFrame();
-      }
+      app.scene.addNode(new Gltf2Node({url: '../media/gltf/space/space.gltf'}));
+      app.scene.addNode(new SkyboxNode({url: '../media/textures/milky-way-4k.png'}));
 
       // Start the XR application.
-      initXR();
-      })();
+      app.run();
     </script>
   </body>
 </html>
diff --git a/tests/permission-request.html b/tests/permission-request.html
index 2ebd3da50..8809f4bc5 100644
--- a/tests/permission-request.html
+++ b/tests/permission-request.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Permission Requests</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -58,17 +43,20 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRSampleApp} from '../js/webxr-sample-app.js';
+      import {UrlTexture} from '../js/render/core/texture.js';
+      import {ButtonNode} from '../js/render/nodes/button.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {mat4} from '../js/render/math/gl-matrix.js';
+      import {QueryArgs} from '../js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
 
       const BUTTON_PER_ROW = 5;
       const BUTTON_ROW_ARC = Math.PI * 0.2;
@@ -76,207 +64,90 @@
       const BUTTON_GRID_HEIGHT = 1.3;
       const BUTTON_GRID_DISTANCE = 1.0;
 
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
+      // WebXR sample app setup
+      let app = new WebXRSampleApp({
+        referenceSpace: 'local-floor',
+        controllerMesh: new Gltf2Node({url: '../media/gltf/controller/controller.gltf'})
+      });
+      document.querySelector('header').appendChild(app.xrButton.domElement);
 
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new Gltf2Node({url: '../media/gltf/cube-room/cube-room.gltf'}));
-      scene.enableStats(false);
+      app.scene.addNode(new Gltf2Node({url: '../media/gltf/cube-room/cube-room.gltf'}));
 
       let checkTexture = new UrlTexture('../media/textures/check-button.png');
       let xTexture = new UrlTexture('../media/textures/x-button.png');
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
+      function addPermissionButton(iconUrl, callback, yAngle, yOffset) {
+        let button = new ButtonNode(new UrlTexture(iconUrl), () => {
+          callback(
+            () => { button.iconTexture = checkTexture; }, // Success callback
+            () => { button.iconTexture = xTexture; } // Failure callback
+          )
         });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
-        }
-      }
-
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
+        mat4.identity(button.matrix);
+        mat4.translate(button.matrix, button.matrix, [0, yOffset, 0]);
+        mat4.rotateY(button.matrix, button.matrix, yAngle);
+        mat4.translate(button.matrix, button.matrix, [0, 0, -BUTTON_GRID_DISTANCE]);
+        app.scene.addNode(button);
       }
 
-      function initGL() {
-        if (gl)
-          return;
-
-        gl = createWebGLContext({
-          xrCompatible: true
-        });
-
-        renderer = new Renderer(gl);
-        scene.setRenderer(renderer);
-        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: '../media/gltf/controller/controller.gltf'}));
-
-        function addPermissionButton(iconUrl, callback, yAngle, yOffset) {
-          let button = new ButtonNode(new UrlTexture(iconUrl), () => {
-            callback(
-              () => { button.iconTexture = checkTexture; }, // Success callback
-              () => { button.iconTexture = xTexture; } // Failure callback
-            )
-          });
-          mat4.identity(button.matrix);
-          mat4.translate(button.matrix, button.matrix, [0, yOffset, 0]);
-          mat4.rotateY(button.matrix, button.matrix, yAngle);
-          mat4.translate(button.matrix, button.matrix, [0, 0, -BUTTON_GRID_DISTANCE]);
-          scene.addNode(button);
-        }
-
-        // Builds a cylindrical grid of buttons
-        function addPermissionButtons(buttonList) {
-          let count = buttonList.length;
-          let rows = Math.ceil(count / BUTTON_PER_ROW);
-          let firstRowOffset = (rows / 2) * BUTTON_ROW_HEIGHT;
-          let anglePerButton = BUTTON_ROW_ARC / BUTTON_PER_ROW;
-          let rowAngleOffset = (BUTTON_ROW_ARC * 0.5) - (anglePerButton * 0.5)
-
-          for (let i = 0; i < count; ++i) {
-            let button = buttonList[i];
-            let yAngle = rowAngleOffset - ((i % BUTTON_PER_ROW) * anglePerButton);
-            let row = Math.floor(i / BUTTON_PER_ROW);
-            let yOffset = BUTTON_GRID_HEIGHT + (firstRowOffset - (row * BUTTON_ROW_HEIGHT));
-            addPermissionButton(button.icon, button.callback, yAngle, yOffset);
-          }
+      // Builds a cylindrical grid of buttons
+      function addPermissionButtons(buttonList) {
+        let count = buttonList.length;
+        let rows = Math.ceil(count / BUTTON_PER_ROW);
+        let firstRowOffset = (rows / 2) * BUTTON_ROW_HEIGHT;
+        let anglePerButton = BUTTON_ROW_ARC / BUTTON_PER_ROW;
+        let rowAngleOffset = (BUTTON_ROW_ARC * 0.5) - (anglePerButton * 0.5)
+
+        for (let i = 0; i < count; ++i) {
+          let button = buttonList[i];
+          let yAngle = rowAngleOffset - ((i % BUTTON_PER_ROW) * anglePerButton);
+          let row = Math.floor(i / BUTTON_PER_ROW);
+          let yOffset = BUTTON_GRID_HEIGHT + (firstRowOffset - (row * BUTTON_ROW_HEIGHT));
+          addPermissionButton(button.icon, button.callback, yAngle, yOffset);
         }
-
-        addPermissionButtons([
-          {
-            icon: '../media/textures/camera-button.png',
-            callback: (success, fail) => {
-              navigator.getUserMedia({ video: true }, success, fail);
-            }
-          },
-          {
-            icon: '../media/textures/mic-button.png',
-            callback: (success, fail) => {
-              navigator.getUserMedia({ audio: true }, success, fail);
-            }
-          },
-          {
-            icon: '../media/textures/location-button.png',
-            callback: (success, fail) => {
-              navigator.geolocation.getCurrentPosition(success, fail);
-            }
-          },
-          {
-            icon: '../media/textures/bluetooth-button.png',
-            callback: (success, fail) => {
-              navigator.bluetooth.requestDevice({
-                // filters: [...] <- Prefer filters to save energy & show relevant devices.
-                // acceptAllDevices here ensures dialog can populate, we don't care with what.
-                acceptAllDevices:true
-              })
-              .then(device => device.gatt.connect())
-              .then(success, fail);
-            }
-          },
-          {
-            icon: '../media/textures/usb-button.png',
-            callback: (success, fail) => {
-              navigator.usb.requestDevice({filters: [{}]})
-              .then(success, fail);
-            }
-          },
-        ]);
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
       }
 
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        session.addEventListener('select', (ev) => {
-          let refSpace = ev.frame.session.mode == "immersive-vr" ?
-                           xrImmersiveRefSpace :
-                           xrNonImmersiveRefSpace;
-          scene.handleSelect(ev.inputSource, ev.frame, refSpace);
-        });
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
+      addPermissionButtons([
+        {
+          icon: '../media/textures/camera-button.png',
+          callback: (success, fail) => {
+            navigator.getUserMedia({ video: true }, success, fail);
           }
-
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        scene.updateInputSources(frame, refSpace);
-
-        scene.drawXRFrame(frame, pose);
-
-        scene.endFrame();
-      }
+        },
+        {
+          icon: '../media/textures/mic-button.png',
+          callback: (success, fail) => {
+            navigator.getUserMedia({ audio: true }, success, fail);
+          }
+        },
+        {
+          icon: '../media/textures/location-button.png',
+          callback: (success, fail) => {
+            navigator.geolocation.getCurrentPosition(success, fail);
+          }
+        },
+        {
+          icon: '../media/textures/bluetooth-button.png',
+          callback: (success, fail) => {
+            navigator.bluetooth.requestDevice({
+              // filters: [...] <- Prefer filters to save energy & show relevant devices.
+              // acceptAllDevices here ensures dialog can populate, we don't care with what.
+              acceptAllDevices:true
+            })
+            .then(device => device.gatt.connect())
+            .then(success, fail);
+          }
+        },
+        {
+          icon: '../media/textures/usb-button.png',
+          callback: (success, fail) => {
+            navigator.usb.requestDevice({filters: [{}]})
+            .then(success, fail);
+          }
+        },
+      ]);
 
       // Start the XR application.
-      initXR();
-      })();
+      app.run();
     </script>
   </body>
 </html>
diff --git a/tests/pointer-painter.html b/tests/pointer-painter.html
index b220cdc52..c848324b2 100644
--- a/tests/pointer-painter.html
+++ b/tests/pointer-painter.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Pointer Painter</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -58,202 +43,101 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRSampleApp} from '../js/webxr-sample-app.js';
+      import {WebXRButton} from '../js/util/webxr-button.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {vec3} from '../js/render/math/gl-matrix.js';
+      import {Ray} from '../js/render/math/ray.js';
+      import {QueryArgs} from '../js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new Gltf2Node({url: '../media/gltf/garage/garage.gltf'}));
-      scene.enableStats(false);
-      scene._resetInputEndFrame = false;
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+      
+      // WebXR sample app setup
+      class CustomWebXRSampleApp extends WebXRSampleApp {
+        constructor(options) {
+          super(options);
+          this.selecting = false;
+
+          this.scene._resetInputEndFrame = false;
         }
-      }
-
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
-
-      function initGL() {
-        if (gl)
-          return;
-
-        gl = createWebGLContext({
-          xrCompatible: true
-        });
-
-        renderer = new Renderer(gl);
-        scene.setRenderer(renderer);
-        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: '../media/gltf/controller/controller.gltf'}));
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
-
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        session.addEventListener('selectstart', onSelectStart);
-        session.addEventListener('selectend', onSelectEnd);
-        session.addEventListener('select', onSelect);
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
 
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      let selecting = false;
-
-      function onSelectStart(ev) {
-        selecting = true;
-      }
-
-      function onSelectEnd(ev) {
-        selecting = false;
-      }
-
-      function onSelect(ev) {
-        let session = ev.frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let inputPose = ev.frame.getInputPose(ev.inputSource, refSpace);
-        if (!inputPose) {
-          return;
+        onSessionStarted(session) {
+          super.onSessionStarted(session);
+
+          session.addEventListener('selectstart', () => { this.selecting = true; });
+          session.addEventListener('selectend', () => { this.selecting = false; });
+          session.addEventListener('select', (ev) => {
+            let refSpace = this.getSessionReferenceSpace(ev.frame.session);
+            let targetRayPose = ev.frame.getPose(ev.inputSource.targetRaySpace, refSpace);
+            if (!targetRayPose) {
+              return;
+            }
+
+            this.scene.inputRenderer.addLaserPointer(targetRayPose.transform);
+
+            let targetRay = new Ray(targetRayPose.transform);
+            let cursorDistance = 2.0;
+            let cursorPos = vec3.fromValues(
+                targetRay.origin.x,
+                targetRay.origin.y,
+                targetRay.origin.z
+                );
+            vec3.add(cursorPos, cursorPos, [
+                targetRay.direction.x * cursorDistance,
+                targetRay.direction.y * cursorDistance,
+                targetRay.direction.z * cursorDistance,
+                ]);
+            this.scene.inputRenderer.addCursor(cursorPos);
+          });
         }
 
-        if (inputPose.targetRay) {
-          scene.inputRenderer.addLaserPointer(inputPose.targetRay);
+        onRendererInit() {
+          super.onRendererInit();
 
-          let cursorDistance = 2.0;
-          let cursorPos = vec3.fromValues(
-              inputPose.targetRay.origin.x,
-              inputPose.targetRay.origin.y,
-              inputPose.targetRay.origin.z
-              );
-          vec3.add(cursorPos, cursorPos, [
-              inputPose.targetRay.direction.x * cursorDistance,
-              inputPose.targetRay.direction.y * cursorDistance,
-              inputPose.targetRay.direction.z * cursorDistance,
-              ]);
-          scene.inputRenderer.addCursor(cursorPos);
+          this.scene.inputRenderer.setControllerMesh(new Gltf2Node({url: '../media/gltf/controller/controller.gltf'}));
         }
-      }
-
-      function updateInputSources(session, frame, refSpace) {
-        let inputSources = session.getInputSources();
-
-        for (let inputSource of inputSources) {
-          let inputPose = frame.getInputPose(inputSource, refSpace);
 
-          if (!inputPose) {
-            continue;
+        onXRFrame(time, frame, refSpace) {
+          for (let inputSource of frame.session.inputSources) {
+            if (this.selecting) {
+              let targetRayPose = frame.getPose(inputSource.targetRaySpace, refSpace);
+              if (targetRayPose) {
+                this.scene.inputRenderer.addLaserPointer(targetRayPose.transform);
+              }
+            }
+
+            if (inputSource.gripSpace) {
+              let gripPose = frame.getPose(inputSource.gripSpace, refSpace);
+              if (gripPose) {
+                this.scene.inputRenderer.addController(gripPose.transform.matrix);
+              }
+            }
           }
 
-          if (inputPose.gripTransform.matrix) {
-            scene.inputRenderer.addController(inputPose.gripTransform.matrix);
-          }
+          super.onXRFrame(time, frame, refSpace);
 
-          if (inputPose.targetRay && selecting) {
-            scene.inputRenderer.addLaserPointer(inputPose.targetRay);
-          }
+          this.scene.inputRenderer.reset({ controllers: true })
         }
-      }
+      };
 
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
+      let app = new CustomWebXRSampleApp({
+        referenceSpace: 'local-floor',
+        defaultInputHandling: false,
+        controllerMesh: new Gltf2Node({url: '../media/gltf/controller/controller.gltf'})
+      });
+      document.querySelector('header').appendChild(app.xrButton.domElement);
 
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        updateInputSources(session, frame, refSpace);
-
-        scene.drawXRFrame(frame, pose);
-
-        scene.endFrame();
-        scene.inputRenderer.reset({ controllers: true })
-      }
+      app.scene.addNode(new Gltf2Node({url: '../media/gltf/garage/garage.gltf'}));
+      app.scene.enableStats(false);
 
       // Start the XR application.
-      initXR();
-      })();
+      app.run();
     </script>
   </body>
 </html>
diff --git a/tests/sponza.html b/tests/sponza.html
index e34eacf12..59f38d6fd 100644
--- a/tests/sponza.html
+++ b/tests/sponza.html
@@ -25,27 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="../favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="../favicon-96x96.png">
 
     <title>Sponza</title>
 
     <link href='../css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='../js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='../js/webxr-version-shim.js'></script>
-
-    <script src='../js/cottontail/build/cottontail.js'></script>
-
-    <script src='../js/webxr-button.js'></script>
   </head>
   <body>
     <header>
@@ -57,159 +42,46 @@
         </p>
       </details>
     </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
+    <script type="module">
+      import {WebXRSampleApp} from '../js/webxr-sample-app.js';
+      import {Gltf2Node} from '../js/render/nodes/gltf2.js';
+      import {SkyboxNode} from '../js/render/nodes/skybox.js';
+      import {quat} from '../js/render/math/gl-matrix.js';
+      import {QueryArgs} from '../js/util/query-args.js';
+
+      // If requested, use the polyfill to provide support for mobile devices
+      // and devices which only support WebVR.
+      import WebXRPolyfill from '../js/third-party/webxr-polyfill/build/webxr-polyfill.module.js';
+      if (QueryArgs.getBool('usePolyfill', true)) {
+        let polyfill = new WebXRPolyfill();
       }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // Temporary
-      let hideStats = QueryArgs.getBool('hideStats', false);
-
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      if (hideStats) {
-        scene.enableStats(false);
-      }
-      scene.addNode(new SkyboxNode({url: '../media/textures/eilenriede-park-2k.png'}));
-      let sponza = new Gltf2Node({url: '../media/gltf/sponza/Sponza.gltf'});
-      // Rotate the scene 90deg so that you start looking down the gallery.
-      quat.rotateY(sponza.rotation, sponza.rotation, Math.PI / 2.0);
-      scene.addNode(sponza);
-      scene.standingStats(true);
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
 
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
+      // WebXR sample app setup
+      class CustomWebXRSampleApp extends WebXRSampleApp {
+        onInitRenderer() {
+          super.onInitRenderer();
 
-          navigator.xr.requestSession({ outputContext: ctx })
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
+          this.renderer.globalLightDir = [-0.2, -1.0, -0.2];
+          this.renderer.globalLightColor = [7.0, 7.0, 8.0];
         }
-      }
-
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-        fallbackHelper.emulateStage = true;
-      }
+      };
 
-      function initGL() {
-        if (gl)
-          return;
+      let app = new CustomWebXRSampleApp({
+        referenceSpace: 'local-floor',
+        controllerMesh: new Gltf2Node({url: '../media/gltf/controller/controller.gltf'})
+      });
+      document.querySelector('header').appendChild(app.xrButton.domElement);
 
-        gl = createWebGLContext({
-          xrCompatible: true
-        });
-
-        renderer = new Renderer(gl);
-        renderer.globalLightDir = [-0.2, -1.0, -0.2];
-        renderer.globalLightColor = [7.0, 7.0, 8.0];
-
-        scene.setRenderer(renderer);
-        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: '../media/gltf/controller/controller.gltf'}));
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
-
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        // By listening for the 'select' event we can find out when the user has
-        // performed some sort of primary input action and respond to it.
-        session.addEventListener('select', onSelect);
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'floor-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onSelect(ev) {
-        
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        session.requestAnimationFrame(onXRFrame);
-
-        scene.updateInputSources(frame, refSpace);
-
-        scene.drawXRFrame(frame, pose);
+      app.scene.addNode(new SkyboxNode({url: '../media/textures/eilenriede-park-2k.png'}));
+      let sponza = new Gltf2Node({url: '../media/gltf/sponza/Sponza.gltf'});
 
-        scene.endFrame();
-      }
+      // Rotate the scene 90deg so that you start looking down the gallery.
+      quat.rotateY(sponza.rotation, sponza.rotation, Math.PI / 2.0);
+      app.scene.addNode(sponza);
+      app.scene.standingStats(true);
 
       // Start the XR application.
-      initXR();
-      })();
+      app.run();
     </script>
   </body>
 </html>
diff --git a/viewport-scaling.html b/viewport-scaling.html
deleted file mode 100644
index f7ad840ae..000000000
--- a/viewport-scaling.html
+++ /dev/null
@@ -1,226 +0,0 @@
-<!doctype html>
-<!--
-Copyright 2018 The Immersive Web Community Group
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
-the Software, and to permit persons to whom the Software is furnished to do so,
-subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
-FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
-COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
-IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
-CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
--->
-<html>
-  <head>
-    <meta charset='utf-8'>
-    <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
-    <meta name='mobile-web-app-capable' content='yes'>
-    <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
-
-    <title>Viewport Scaling</title>
-
-    <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--The polyfill is not needed for browser that have native API support,
-        but is linked by these samples for wider compatibility.-->
-    <!--script src='https://cdn.jsdelivr.net/npm/webxr-polyfill@latest/build/webxr-polyfill.js'></script-->
-    <script src='js/webxr-polyfill.js'></script>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
-
-    <script src='js/cottontail/build/cottontail.js'></script>
-
-    <script src='js/webxr-button.js'></script>
-  </head>
-  <body>
-    <header>
-      <details open>
-        <summary>Viewport Scaling</summary>
-        <p>
-          This sample demonstrates scaling the viewports used for a WebXR layer
-          at runtime to dynamically adjust the fillrate required and improve
-          performance or quality as needed.
-
-          Viewport scaling should be used to make a performance/quality tradeoff
-          in response to realtime performance monitoring.
-          <a class="back" href="./">Back</a>
-        </p>
-      </details>
-    </header>
-    <script>
-      (function () {
-      'use strict';
-
-      // If requested, initialize the WebXR polyfill
-      if (QueryArgs.getBool('allowPolyfill', false)) {
-        var polyfill = new WebXRPolyfill();
-      }
-      // Apply the version shim after the polyfill is instantiated, to ensure
-      // that the polyfill also gets patched if necessary.
-      var versionShim = new WebXRVersionShim();
-
-      // XR globals.
-      let xrButton = null;
-      let xrImmersiveRefSpace = null;
-      let xrNonImmersiveRefSpace = null;
-
-      // WebGL scene globals.
-      let gl = null;
-      let renderer = null;
-      let scene = new Scene();
-      scene.addNode(new CubeSeaNode());
-
-      let resolutionMultiplier = 1.0;
-      let lastAdjustment = Date.now()-1000;
-
-      // Called in the render loop.
-      function adjustViewportScale(session) {
-        // Update the viewport scale every tenth of a second.
-        let t = Date.now();
-        if (t - lastAdjustment < 100)
-          return;
-        lastAdjustment = t;
-
-        // Modify the scale over time on a sin wave. In the real world this
-        // would probably be based on scene complexity.
-        // Oscillates between 1.0 to 0.5.
-        resolutionMultiplier = (Math.sin(t / 1000) * 0.25) + 0.75;
-
-        // This is the only new XRSession call in this sample. It sets a
-        // requested scale to be applied to the viewports reported for each
-        // XRView. The UA is allowed to ignore the request or adjust it as
-        // needed. If the scaling request is honored it will take effect on the
-        // *next* frame, not the current one.
-        session.renderState.baseLayer.requestViewportScaling(resolutionMultiplier);
-      }
-
-      function initXR() {
-        xrButton = new XRDeviceButton({
-          onRequestSession: onRequestSession,
-          onEndSession: onEndSession
-        });
-        document.querySelector('header').appendChild(xrButton.domElement);
-
-        if (navigator.xr) {
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
-            xrButton.enabled = true;
-          });
-
-          let outputCanvas = document.createElement('canvas');
-          let ctx = outputCanvas.getContext('xrpresent');
-
-          navigator.xr.requestSession({outputContext: ctx})
-              .then((session) => {
-                document.body.appendChild(outputCanvas);
-                onSessionStarted(session);
-              });
-        } else {
-          initFallback();
-        }
-      }
-
-      function initFallback() {
-        initGL();
-        document.body.appendChild(gl.canvas);
-        let fallbackHelper = new FallbackHelper(scene, gl);
-      }
-
-      function initGL() {
-        if (gl)
-          return;
-
-        gl = createWebGLContext({
-          xrCompatible: true
-        });
-
-        gl.clearColor(0.1, 0.2, 0.3, 1.0);
-
-        renderer = new Renderer(gl);
-
-        scene.setRenderer(renderer);
-        scene.inputRenderer.setControllerMesh(new Gltf2Node({url: 'media/gltf/controller/controller.gltf'}));
-      }
-
-      function onRequestSession() {
-        // Set up a mirror canvas
-        let mirrorCanvas = document.createElement('canvas');
-        let ctx = mirrorCanvas.getContext('xrpresent');
-        mirrorCanvas.setAttribute('id', 'mirror-canvas');
-        document.body.appendChild(mirrorCanvas);
-
-        navigator.xr.requestSession({ mode: 'immersive-vr', outputContext: ctx }).then((session) => {
-          xrButton.setSession(session);
-          onSessionStarted(session);
-        });
-      }
-
-      function onSessionStarted(session) {
-        session.addEventListener('end', onSessionEnded);
-
-        initGL();
-
-        session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
-
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
-          if (session.mode == "immersive-vr") {
-            xrImmersiveRefSpace = refSpace;
-          } else {
-            xrNonImmersiveRefSpace = refSpace;
-          }
-          session.requestAnimationFrame(onXRFrame);
-        });
-      }
-
-      function onEndSession(session) {
-        session.end();
-      }
-
-      function onSessionEnded(event) {
-        if (event.session.mode == "immersive-vr") {
-          document.body.removeChild(document.querySelector('#mirror-canvas'));
-          xrButton.setSession(null);
-        }
-      }
-
-      function onXRFrame(t, frame) {
-        let session = frame.session;
-        let refSpace = session.mode == "immersive-vr" ?
-                         xrImmersiveRefSpace :
-                         xrNonImmersiveRefSpace;
-        let pose = frame.getViewerPose(refSpace);
-
-        scene.startFrame();
-
-        // Adjust the viewports if needed.
-        adjustViewportScale(session);
-
-        session.requestAnimationFrame(onXRFrame);
-
-        scene.updateInputSources(frame, refSpace);
-
-        scene.drawXRFrame(frame, pose);
-
-        scene.endFrame();
-      }
-
-      // Start the XR application.
-      initXR();
-      })();
-    </script>
-  </body>
-</html>
diff --git a/xr-barebones.html b/xr-barebones.html
index 9c3ef6bcb..38c891b23 100644
--- a/xr-barebones.html
+++ b/xr-barebones.html
@@ -25,18 +25,12 @@
     <meta name='viewport' content='width=device-width, initial-scale=1, user-scalable=no'>
     <meta name='mobile-web-app-capable' content='yes'>
     <meta name='apple-mobile-web-app-capable' content='yes'>
-
-    <!-- Origin Trial Token, feature = WebXR Device API, origin = https://immersive-web.github.io, expires = 2018-08-28 -->
-<meta http-equiv="origin-trial" data-feature="WebXR Device API" data-expires="2018-08-28" content="AnNpu7ceXvLew05ccD8Zr1OZsdZiB2hLQKK82kTTMDwF7oRKtP3QEJ4RzkeHrmB8Sq0vSV6ZNmszpBCZ0I8p9gAAAABceyJvcmlnaW4iOiJodHRwczovL2ltbWVyc2l2ZS13ZWIuZ2l0aHViLmlvOjQ0MyIsImZlYXR1cmUiOiJXZWJYUkRldmljZSIsImV4cGlyeSI6MTUzNTQxNDQwMH0=">
+    <link rel="icon" type="image/png" sizes="32x32" href="favicon-32x32.png">
+    <link rel="icon" type="image/png" sizes="96x96" href="favicon-96x96.png">
 
     <title>Barebones WebXR</title>
 
     <link href='css/common.css' rel='stylesheet'></link>
-
-    <!--This script patches up around implementation differences in past browser versions
-        so that the samples can always be written against the most recent spec changes.
-        It won't be necessary after the API has been officially shipped for a bit.-->
-    <script src='js/webxr-version-shim.js'></script>
   </head>
   <body>
     <header>
@@ -58,8 +52,6 @@
       (function () {
       'use strict';
 
-      var versionShim = new WebXRVersionShim();
-
       // XR globals.
       let xrButton = document.getElementById('xr-button');
       let xrSession = null;
@@ -76,7 +68,7 @@
         if (navigator.xr) {
           // If the device allows creation of exclusive sessions set it as the
           // target of the 'Enter XR' button.
-          navigator.xr.supportsSessionMode('immersive-vr').then(() => {
+          navigator.xr.supportsSession('immersive-vr').then(() => {
             // Updates the button to start an XR session when clicked.
             xrButton.addEventListener('click', onButtonClicked);
             xrButton.innerHTML = 'Enter XR';
@@ -86,10 +78,10 @@
       }
 
       // Called when the user clicks the button to enter XR. If we don't have a
-      // session already we'll request one, and if we do we'll end it.
+      // session we'll request one, and if we do have a session we'll end it.
       function onButtonClicked() {
         if (!xrSession) {
-          navigator.xr.requestSession({mode: 'immersive-vr'}).then(onSessionStarted);
+          navigator.xr.requestSession('immersive-vr').then(onSessionStarted);
         } else {
           xrSession.end();
         }
@@ -108,19 +100,17 @@
         // Create a WebGL context to render with, initialized to be compatible
         // with the XRDisplay we're presenting to.
         let canvas = document.createElement('canvas');
-        gl = canvas.getContext('webgl', {
-          xrCompatible: true
-        });
+        gl = canvas.getContext('webgl', { xrCompatible: true });
 
         // Use the new WebGL context to create a XRWebGLLayer and set it as the
         // sessions baseLayer. This allows any content rendered to the layer to
         // be displayed on the XRDevice.
         session.updateRenderState({ baseLayer: new XRWebGLLayer(session, gl) });
 
-        // Get a frame of reference, which is required for querying poses. In
-        // this case an 'eye-level' frame of reference means that all poses will
-        // be relative to the location where the XRDevice was first detected.
-        session.requestReferenceSpace({ type: 'stationary', subtype: 'eye-level' }).then((refSpace) => {
+        // Get a reference space, which is required for querying poses. In this
+        // case an 'local' reference space means that all poses will be relative
+        // to the location where the XRDevice was first detected.
+        session.requestReferenceSpace('local').then((refSpace) => {
           xrRefSpace = refSpace;
 
           // Inform the session that we're ready to begin drawing.
@@ -128,14 +118,8 @@
         });
       }
 
-      // Called when the user clicks the 'Exit XR' button. In response we end
-      // the session.
-      function onEndSession(session) {
-        session.end();
-      }
-
-      // Called either when the user has explicitly ended the session (like in
-      // onEndSession()) or when the UA has ended the session for any reason.
+      // Called either when the user has explicitly ended the session by calling
+      // session.end() or when the UA has ended the session for any reason.
       // At this point the session object is no longer usable and should be
       // discarded.
       function onSessionEnded(event) {
@@ -148,13 +132,13 @@
       }
 
       // Called every time the XRSession requests that a new frame be drawn.
-      function onXRFrame(t, frame) {
+      function onXRFrame(time, frame) {
         let session = frame.session;
 
         // Inform the session that we're ready for the next frame.
         session.requestAnimationFrame(onXRFrame);
 
-        // Get the XRDevice pose relative to the Frame of Reference we created
+        // Get the XRDevice pose relative to the reference space we created
         // earlier.
         let pose = frame.getViewerPose(xrRefSpace);
 
@@ -162,7 +146,7 @@
         // have to check to make sure that we got a valid pose before attempting
         // to render with it. If not in this case we'll just leave the
         // framebuffer cleared, so tracking loss means the scene will simply
-        // dissapear.
+        // disappear.
         if (pose) {
           let glLayer = session.renderState.baseLayer;
 
@@ -173,8 +157,9 @@
 
           // Update the clear color so that we can observe the color in the
           // headset changing over time.
-          let time = Date.now();
-          gl.clearColor(Math.cos(time / 2000), Math.cos(time / 4000), Math.cos(time / 6000), 1.0);
+          gl.clearColor(Math.cos(time / 2000),
+                        Math.cos(time / 4000),
+                        Math.cos(time / 6000), 1.0);
 
           // Clear the framebuffer
           gl.clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT);
@@ -188,7 +173,9 @@
             gl.viewport(viewport.x, viewport.y,
                         viewport.width, viewport.height);
 
-            // Draw something.
+            // Draw a scene using view.projectionMatrix as the projection matrix
+            // and view.transform to position the virtual camera. If you need a
+            // view matrix, use view.transform.inverse.matrix.
           }*/
         }
       }
