Previously the game was CPU bottlenecked on the render thread due to huge numbers of draw calls. This resulted in poor GPU utilization. This was particularly apparent when facing away from the sun/moon during sunset/sunrise as this scenario results in the most shadow pass draw calls (over 15000 in some areas on max settings). 2/7

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2024-08-16 07:34

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Tooley1998
tooley_1998

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幾秒內	Tooley1998 tooley_1998	In my voxel engine the world is divided into 32x32x32 voxel meshes that vary in size depending on LOD. I have made a system that merges nearby voxel meshes of the same LOD into larger “chunks”. This saves a huge number of draw calls resulting in much better render thread performance and GPU utilization. Now this optimisation does cost a bit of ram/vram as the nearby meshes are basically stored twice. 3/7