Cesium: skined model show a wrong effect

[sweerwen]

the model was export from blender2.82, when i load it by cesium, it seems like has some problems about transparent or depth:

but when view from top of the model ,it looks normal:

i test in threejs and gltf-viewer, both have no problem.

here is the model:
miner.zip

[lilleyse]

@sweerwen it looks like this is the same problem as https://github.com/CesiumGS/cesium/issues/6447.

A workaround is to set viewer.scene.logarithmicDepthBuffer = false;

[sweerwen]

@sweerwen it looks like this is the same problem as #6447.

A workaround is to set viewer.scene.logarithmicDepthBuffer = false;

thanks @lilleyse , it works. but when set viewer.scene.logarithmicDepthBuffer = false;, whether it will cause other problems?

[lilleyse]

@sweerwen In general it should be okay but there are some known issues like

https://github.com/CesiumGS/cesium/issues/4381
https://github.com/CesiumGS/cesium/issues/7705

I think we might be able to fix #6447 pretty soon and not require the workaround here.

[sweerwen]

I think we might be able to fix #6447 pretty soon and not require the workaround here.

@lilleyse glad to hear that, thanks for your contribution.

[sweerwen]

just tested when set log depth to false on HDR page then switch the HDR checkbox,it crashed. but comment this line //viewer.scene.highDynamicRange = true;, has no problem.

[lilleyse]

@sweerwen that sounds like this bug possibly: https://github.com/CesiumGS/cesium/issues/8372