Software occlusion culling in Block Game

Automated excerpt

My chunks are 16x16x16 in size, so there’s 5 levels: I process level 4 first, marking as an occluder any full opaque block with a visible face. Skipping occluders like this vastly reduces the workload for the occlusion culler. The occlusion culler also stores every candidate chunk’s position, size, and chunk index in a list of chunks. A chunk only has visible geometry if it has visible faces.

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