EnvironmentDiffuseScale to 0, SurfaceGui not illuminated by the sun will appear to glow

walvymochee · July 20, 2026, 7:18am

Intel Core i7-13620H 16GB NVIDIA GeForce RTX 3050 Laptop GPU

when EnvironmentDiffuseScale set 1

when EnvironmentDiffuseScale set 0

If sunlight exposes Guis, it looks perfectly natural.

it can be reproduce it any place

If you look closely at the sticker on the left, you’ll see that the Decal isn’t affected in the same way. ‘1’ is a “TextLabel.”

Expected behavior

when EnvironmentDiffuseScale is 0, and if it is in the shadow, looks working correctly if brightness set to 0.

MaxCaulfield_001 · July 20, 2026, 3:51pm

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walvymochee · July 21, 2026, 5:42am