Implement occlusion culling for the deferred rendering pipeline. #17934
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Deferred rendering currently doesn't support occlusion culling. This PR implements it in a straightforward way, mirroring what we already do for the non-deferred pipeline. On the rend3 sci-fi base test scene, this resulted in roughly a 2× speedup when applied on top of my other patches. For that scene, it was useful to add another option, `--add-light`, which forces the addition of a shadow-casting light, to the scene viewer, which I included in this patch.
pcwalton
added
A-Rendering
superdump
reviewed
Feb 20, 2025
| .as_ref() | ||
| .map(|deferred_texture| { | ||
| if is_late { | ||
| deferred_texture.get_attachment() |
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Should the same WebGL2, WebGPU, etc cfg guard be here too? Or practically it doesn’t matter because it won’t be set there?
superdump
approved these changes
Feb 20, 2025
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Deferred rendering currently doesn't support occlusion culling. This PR implements it in a straightforward way, mirroring what we already do for the non-deferred pipeline.
On the rend3 sci-fi base test scene, this resulted in roughly a 2× speedup when applied on top of my other patches. For that scene, it was useful to add another option,
--add-light, which forces the addition of a shadow-casting light, to the scene viewer, which I included in this patch.