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Implement GPU occlusion culling #33

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cfnptr opened this issue Dec 5, 2024 · 0 comments
Open

Implement GPU occlusion culling #33

cfnptr opened this issue Dec 5, 2024 · 0 comments
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improvement Existing feature improvement research Issue requires a research
Milestone
First beta versio...

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@cfnptr
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cfnptr commented Dec 5, 2024

Integrate it into the MeshRenderSystem.

Possible culling flow:

  1. Z-Prepass: render all visible from previous frame objects into the HZB.
  2. Check visibility with occlusion queries for not visible objects.
  3. Adjust indirect draw commands arguments insidie compute shader based on queries result.
  4. Somehow store new visibility states into the buffer and reuse on the next frame.

*4 Maybe we can make global buffer with visibilities and unique object identifiers to pass info between frames?

Based on this: https://www.youtube.com/watch?v=CHYxjpYep_M
@cfnptr cfnptr added improvement Existing feature improvement research Issue requires a research labels Dec 5, 2024
@cfnptr cfnptr added this to the First beta version (v0.1.0) milestone Dec 28, 2024
@cfnptr cfnptr mentioned this issue Dec 28, 2024
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