Fix #114515: Cycles: Numerical precision issues in triangle light sampling #119224

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Lukas Stockner wants to merge 1 commits from LukasStockner/blender:triangle-sampling-precision into main

pull from: LukasStockner/blender:triangle-sampling-precision

merge into: blender:main

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blender:brush-assets-project

blender:partial-write-refactor

blender:blender-v4.1-release

blender:blender-v3.6-temp_wmoss_animrig_public

blender:temp-sculpt-dyntopo

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blender:anim/animation-id-113594

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blender:asset-browser-frontend-split

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blender:tmp-usd-3.6

blender:blender-v3.5-release

blender:blender-v2.93-release

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Conversation 3 Commits 1 Files Changed 1 +12 -12

1 Commits

Author	SHA1	Message	Date
Lukas Stockner	54f5807665	Fix #114515: Cycles: Numerical precision issues in triangle light sampling ... The refactor in 97d9bbbc97 changed the way q is computed in the spherical triangle sampling code. While the new approach is more efficient and saves a few operations, it introduces numerical precision issues for skinny/small (spherical) triangles. Therefore, this change moves the computation of q back to the method from the paper, while keeping the more efficient solid angle computation.	2024-05-19 22:28:51 +02:00