Bug: Intel UHD 620 is very slow with the new Model class

CesiumJS
1

Last known good version is 1.96, there FPS is like 40fps for 3d tiles powerplant model sandcastle. But with the newest version new Model-class, the same demo is about 6fps.

I have tried the particular “* show” -fix found from the forum but that applies only to pointclouds I think. In the bug-case we are seeing even very large point clouds run fine. It affects only the mesh-models.

Any insight would be really appreciated!

2

I narrowed this down to 2 things that cause significant performance penalty:

  • Logarithmic depth
  • Stencil operations

If those are disabled framerate increases at about 10x. :thinking: