Freeze Active Meshes and instances

[Evgeni_Popov]

In frozen mode, the list of active meshes is not recomputed and, by default, the world matrices of instances are not recomputed/updated neither.

To fix the problem, you can pass false for the freezeMeshes parameter of the scene.freezeActiveMeshes call. Or you can update the world matrices of the instances manually. See how it’s done in the PG of this post:

WebGPU instancing does not render

PR created: For this to work, the master mesh must be visible (because it must be an active mesh). If you really don’t want to display it, you can set a material that will hide it (disableColorWrite = true / disableDepthWrite = true). Here’s a PG that will work once the PR is merged: