diff --git a/all-is-cubes-desktop/tests/end-to-end/record-ok-gltf.out/test-record-lighting-bench.gltf b/all-is-cubes-desktop/tests/end-to-end/record-ok-gltf.out/test-record-lighting-bench.gltf
index a9f6acac3..83fa41925 100644
--- a/all-is-cubes-desktop/tests/end-to-end/record-ok-gltf.out/test-record-lighting-bench.gltf
+++ b/all-is-cubes-desktop/tests/end-to-end/record-ok-gltf.out/test-record-lighting-bench.gltf
@@ -1,11 +1,11 @@
 {
   "accessors": [
     {
+      "type": "VEC3",
       "bufferView": 0,
       "byteOffset": 0,
       "count": 1680,
       "componentType": 5126,
-      "type": "VEC3",
       "min": [
         0.0,
         28.0,
@@ -19,11 +19,11 @@
       "name": "chunk [0, -1, 0] position"
     },
     {
+      "type": "VEC4",
       "bufferView": 0,
       "byteOffset": 12,
       "count": 1680,
       "componentType": 5126,
-      "type": "VEC4",
       "min": [
         0.5,
         0.5,
@@ -39,11 +39,11 @@
       "name": "chunk [0, -1, 0] base color"
     },
     {
+      "type": "VEC2",
       "bufferView": 0,
       "byteOffset": 28,
       "count": 1680,
       "componentType": 5126,
-      "type": "VEC2",
       "min": [
         0.0,
         0.0
@@ -55,19 +55,19 @@
       "name": "chunk [0, -1, 0] base color texcoords"
     },
     {
+      "type": "SCALAR",
       "bufferView": 1,
       "byteOffset": 0,
       "count": 2520,
       "componentType": 5123,
-      "type": "SCALAR",
       "name": "chunk [0, -1, 0] opaque index"
     },
     {
+      "type": "VEC3",
       "bufferView": 2,
       "byteOffset": 0,
       "count": 1104,
       "componentType": 5126,
-      "type": "VEC3",
       "min": [
         0.0,
         0.0,
@@ -81,11 +81,11 @@
       "name": "chunk [0, 0, 0] position"
     },
     {
+      "type": "VEC4",
       "bufferView": 2,
       "byteOffset": 12,
       "count": 1104,
       "componentType": 5126,
-      "type": "VEC4",
       "min": [
         0.5,
         0.19272807240486145,
@@ -101,11 +101,11 @@
       "name": "chunk [0, 0, 0] base color"
     },
     {
+      "type": "VEC2",
       "bufferView": 2,
       "byteOffset": 28,
       "count": 1104,
       "componentType": 5126,
-      "type": "VEC2",
       "min": [
         0.0,
         0.0
@@ -117,11 +117,11 @@
       "name": "chunk [0, 0, 0] base color texcoords"
     },
     {
+      "type": "SCALAR",
       "bufferView": 3,
       "byteOffset": 0,
       "count": 1656,
       "componentType": 5123,
-      "type": "SCALAR",
       "name": "chunk [0, 0, 0] opaque index"
     }
   ],
@@ -177,58 +177,32 @@
   ],
   "cameras": [
     {
+      "type": "perspective",
       "perspective": {
         "aspectRatio": 1.3333334,
         "yfov": 1.5707964,
         "zfar": 200.0,
         "znear": 0.03125
-      },
-      "type": "perspective"
+      }
     }
   ],
   "materials": [
     {
-      "alphaMode": "OPAQUE",
-      "doubleSided": false,
       "name": "aic-vertex-opaque",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
-        ],
-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
-      },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ]
+        "metallicFactor": 0.0
+      }
     },
     {
       "alphaMode": "BLEND",
-      "doubleSided": false,
       "name": "aic-vertex-transparent",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
-        ],
-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
+        "metallicFactor": 0.0
       },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ],
       "extensions": {
-        "KHR_materials_transmission": {
-          "transmissionFactor": 0.0
+        "KHR_materials_transmission": {},
+        "KHR_materials_volume": {
+          "thicknessFactor": 1.0
         }
       }
     }
diff --git a/all-is-cubes-port/src/gltf/tests/export_block_defs/export_block_defs.gltf b/all-is-cubes-port/src/gltf/tests/export_block_defs/export_block_defs.gltf
index d38d186c0..fd42c9df4 100644
--- a/all-is-cubes-port/src/gltf/tests/export_block_defs/export_block_defs.gltf
+++ b/all-is-cubes-port/src/gltf/tests/export_block_defs/export_block_defs.gltf
@@ -1,11 +1,11 @@
 {
   "accessors": [
     {
+      "type": "VEC3",
       "bufferView": 0,
       "byteOffset": 0,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC3",
       "min": [
         0.0,
         0.0,
@@ -19,11 +19,11 @@
       "name": "'block0' position"
     },
     {
+      "type": "VEC4",
       "bufferView": 0,
       "byteOffset": 12,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC4",
       "min": [
         0.04288181662559509,
         0.040675945580005646,
@@ -39,11 +39,11 @@
       "name": "'block0' base color"
     },
     {
+      "type": "VEC2",
       "bufferView": 0,
       "byteOffset": 28,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC2",
       "min": [
         0.0,
         0.0
@@ -55,19 +55,19 @@
       "name": "'block0' base color texcoords"
     },
     {
+      "type": "SCALAR",
       "bufferView": 1,
       "byteOffset": 0,
       "count": 36,
       "componentType": 5123,
-      "type": "SCALAR",
       "name": "'block0' opaque index"
     },
     {
+      "type": "VEC3",
       "bufferView": 2,
       "byteOffset": 0,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC3",
       "min": [
         0.0,
         0.0,
@@ -81,11 +81,11 @@
       "name": "'block1' position"
     },
     {
+      "type": "VEC4",
       "bufferView": 2,
       "byteOffset": 12,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC4",
       "min": [
         0.873272180557251,
         0.8710663318634033,
@@ -101,11 +101,11 @@
       "name": "'block1' base color"
     },
     {
+      "type": "VEC2",
       "bufferView": 2,
       "byteOffset": 28,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC2",
       "min": [
         0.0,
         0.0
@@ -117,11 +117,11 @@
       "name": "'block1' base color texcoords"
     },
     {
+      "type": "SCALAR",
       "bufferView": 3,
       "byteOffset": 0,
       "count": 36,
       "componentType": 5123,
-      "type": "SCALAR",
       "name": "'block1' opaque index"
     }
   ],
@@ -177,47 +177,21 @@
   ],
   "materials": [
     {
-      "alphaMode": "OPAQUE",
-      "doubleSided": false,
       "name": "aic-vertex-opaque",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
-        ],
-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
-      },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ]
+        "metallicFactor": 0.0
+      }
     },
     {
       "alphaMode": "BLEND",
-      "doubleSided": false,
       "name": "aic-vertex-transparent",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
-        ],
-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
+        "metallicFactor": 0.0
       },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ],
       "extensions": {
-        "KHR_materials_transmission": {
-          "transmissionFactor": 0.0
+        "KHR_materials_transmission": {},
+        "KHR_materials_volume": {
+          "thicknessFactor": 1.0
         }
       }
     }
diff --git a/all-is-cubes-port/src/gltf/tests/export_space/export_space.gltf b/all-is-cubes-port/src/gltf/tests/export_space/export_space.gltf
index 962f4c43a..178475213 100644
--- a/all-is-cubes-port/src/gltf/tests/export_space/export_space.gltf
+++ b/all-is-cubes-port/src/gltf/tests/export_space/export_space.gltf
@@ -1,11 +1,11 @@
 {
   "accessors": [
     {
+      "type": "VEC3",
       "bufferView": 0,
       "byteOffset": 0,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC3",
       "min": [
         0.0,
         0.0,
@@ -19,11 +19,11 @@
       "name": "'x' position"
     },
     {
+      "type": "VEC4",
       "bufferView": 0,
       "byteOffset": 12,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC4",
       "min": [
         0.5,
         0.5,
@@ -39,11 +39,11 @@
       "name": "'x' base color"
     },
     {
+      "type": "VEC2",
       "bufferView": 0,
       "byteOffset": 28,
       "count": 24,
       "componentType": 5126,
-      "type": "VEC2",
       "min": [
         0.0,
         0.0
@@ -55,11 +55,11 @@
       "name": "'x' base color texcoords"
     },
     {
+      "type": "SCALAR",
       "bufferView": 1,
       "byteOffset": 0,
       "count": 36,
       "componentType": 5123,
-      "type": "SCALAR",
       "name": "'x' opaque index"
     }
   ],
@@ -96,47 +96,21 @@
   ],
   "materials": [
     {
-      "alphaMode": "OPAQUE",
-      "doubleSided": false,
       "name": "aic-vertex-opaque",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
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-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
-      },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ]
+        "metallicFactor": 0.0
+      }
     },
     {
       "alphaMode": "BLEND",
-      "doubleSided": false,
       "name": "aic-vertex-transparent",
       "pbrMetallicRoughness": {
-        "baseColorFactor": [
-          1.0,
-          1.0,
-          1.0,
-          1.0
-        ],
-        "metallicFactor": 0.0,
-        "roughnessFactor": 1.0
+        "metallicFactor": 0.0
       },
-      "emissiveFactor": [
-        0.0,
-        0.0,
-        0.0
-      ],
       "extensions": {
-        "KHR_materials_transmission": {
-          "transmissionFactor": 0.0
+        "KHR_materials_transmission": {},
+        "KHR_materials_volume": {
+          "thicknessFactor": 1.0
         }
       }
     }