Strange behavior of ui.scene because of changing the camera

[v479038280]

Here is the code:

from nicegui import ui

with ui.scene() as scene:
    scene.extrusion([[0,0],[0,5],[5,5],[2.5,2.5],[5,0]],5)
    scene.move_camera(x=0, y=0, z=10)

ui.run()

The expect result should look like this:

but the default view is this:

when the scene is clicked the view become this:

when refreshed, it becomes this again:

Here is the result:

[python-and-fiction]

what's your expect?

[v479038280]

I add some description to the problem.The view changed when we click the grid area.

[falkoschindler]

Hi @v479038280,

I think there's an ambiguity with your camera orientation. The camera pose is defined by its position, its viewing direction ("look at") and the "up" vector. I don't know Three.js' default values by heart, but I assume your up vector (probably [0,0,1]) now points into the same direction like or opposite to the viewing direction. This is why the rendered scene flips around undecidedly. Try setting the up vector explicitly:

scene.move_camera(x=0, y=0, z=10, up_x=0, up_y=1, up_z=0)

[v479038280]

Thank you for your reply, I haven't kook into other parameters besides x y z, this will also work `scene.move_camera(z=10)'

[v479038280]

It seems I've seen the usage of (x=0, y=0, z=some value) in either Rosys or Field_Friend, and I haven't encountered this kind of exception. I can't recall exactly where it was, I just have a vague memory. I really admire your ability to reference so many similar discussions.