fix: clustered lighting packed decode stability on Samsung WebGL#8461
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Store clustered packed `flags`, `anglesData`, and `colorBFlagsData` as module-scope temporaries instead of struct members to avoid observed precision/corruption issues on some Samsung devices while preserving decode behavior. Fixes #7800. Co-authored-by: Cursor <cursoragent@cursor.com>
willeastcott
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Feb 13, 2026
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…GL (#8461) Store clustered packed `flags`, `anglesData`, and `colorBFlagsData` as module-scope temporaries instead of struct members to avoid observed precision/corruption issues on some Samsung devices while preserving decode behavior. Fixes #7800. Co-authored-by: Martin Valigursky <mvaligursky@snapchat.com> Co-authored-by: Cursor <cursoragent@cursor.com>
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Summary
It seems some older Samsung devices loose precision on uints when stored inside a struct (we have similar precision loss issue with shadow matrix on Pixel 5 as well), and so:
ClusterLightDatainto module-scope GLSL variables inclusteredLightPS.Fixes #7800.