GPU Instancing Experiment #2664
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Note so people don't panic -- the disable is just to mask off branches of the render pipe that still need to be ported to use GPU instancing to cut down on noise in framerates as I go.
…ve VAO dependency
… thread during swapBuffers
…tion probes are disabled.
…viewer into davep-gpu-instancing
…/sort for shadow vs main camera.
…arent water always being on
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Experimental rewrite of LLVolumeGeometryManager and DrawPools to use GPU instancing of Vertex Buffers in Volume space instead of using the CPU to create Vertex Buffers in other coordinate frames.
Currently applied to GLTF drawpools only, but when complete, LLFace::getGeometryVolume will no longer exist, eliminating one of our primary sources of frame stalls.
This PR will aim to get the work completed for GLTF Materials and ready for Develop, with another PR targeting Blinn-Phong materials, and a third PR targeting OG diffuse/fullbright/shiny/bump.
Todo on this PR: