How to keep buffers on the GPU when using compute shaders for instancing or vertex data generation

[Evgeni_Popov]

@CrashMaster

I am working on the thin instance hack but I am struggling with setVerticesBuffer. I can indeed get the world0, world1, world2, world3 properly and I can create the associate buffers but how do I tell my grass blade to create thin instances out of it?

This PR will let you force an instance count for thin instances:

Thin instances: Support forcedInstanceCount with thin instances

You also have to indicate that your vertex buffer uses instancing by setting the instanced: true option.

Once the PR is merged, this PG will work:

Babylon.js Playground