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

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!

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: