Blender Git Loki

Cleanup: Wireframe: Use vec3_copy and remove unused code

GPUBatch: Bypass empty drawcalls

These should be taken care of at a higher level but it's not
always possible. So it's still nice for cleaning up
captures in renderdoc.

Cleanup: GPU: Avoid implicit matrix multiplication

Object Mode: Fix/Cleanup LightGrid overlays

DRW: Add DRW_shgroup_uniform_vec3/4_copy

This will allow to remove a lot of temporary storage.

DRW: Replace single DRWUniform alloc by DRWUniformChunk

This is in order to improve cache coherence and lower memory
usage.

The savings in memory are used to be able to do vec4_copy
uniforms.

Cleanup: DRW: Remove unused vars and reduce size of DRWUniform

DRW: Port Workbench to use DRWObjectInfos ubos

DRW: Port Eevee to use DRWObjectInfos ubos

DRW: Remove DRWCallSate in favor of DRWResourceHandle

DRW: Fix Eevee rendering broken due to recent changes

DRW: Fix eevee shaders and promote DRAW_ID to builtin uniform

Also rename DRAWID to BASE_INSTANCE

The Base instance uniform is necessary because fragment shaders
does not have the gl_BaseInstance builtin input variable.

So we need a workaround for those

DRW: Replace DRW_CALL_OBINFOS by a boolean in DRWManager

This is to remove the use of keeping a shared flag per drawcall.

DRW: Make DRWCullingState referenced by DRWResourceHandle

DRW: Use ARB_shader_draw_parameters when available

This is to pass the offset of the object data to the shader
without a uniform call.

DRW: Use Model Matrix UBO blocks when possible

This bind the correct UBO block and pass the id inside the block
using a single int uniform.

There is still a legacy path for shader not using the modelBlock

DRW: Make DRWCall use resource handle

DRW: Upload model matrices via UBO

The UBO is still not used so nothing should fail for now.

DRW: Make Call matrices and object infos into their own containers

This is in preparation of some bigger refactor that will put all
object matrices and infos into UBOs.

So this commit introduce a bit of performance penalty but it will
be claimed back!

Cloth: cache read check for adaptive cloth