Search Issue Tracker
By Design
Votes
0
Found in
2022.1.0a1
2022.3.60f1
6000.0.43f1
6000.1.0b11
6000.2.0a7
Issue ID
UUM-100556
Regression
No
GameObjects appear in a different shade when changing the Filter Mode of the Skybox texture
How to reproduce:
1. Open the attached “IN-96913_My_project“ project
2. Open the “SampleScene“
3. Select “Assets/autumn_field_puresky_4k.hdr“ in the Project window
4. In the Inspector window, change the Filter Mode to Bilinear or Trilinear and apply the changes
5. Go to Window > Rendering > Lighting > Lighting window
6. Press “Generate Lighting“
7. Observe the results in Scene view
Expected result: GameObjects in the Scene appear the same
Actual result: GameObjects in the Scene appear in a different shade
Reproducible with: 2022.1.0a1, 2022.3.60f1, 6000.0.43f1, 6000.1.0b11, 6000.2.0a7
Reproducible on: MacOS 15.3 (M4), Windows 11 (by user)
Not reproducible on: No other environments tested
Notes:
- Reproducible in Player
- When the Filter Mode is set to Bilinear or Trilinear, it gives the same results after generating lighting
- Only reproduces using bright HDR images
Add comment
All about bugs
View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.
Latest issues
- The font for the Position and Rotation Transform of the Prefab is bold when it is added to the Hierarchy
- UI Builder Hierarchy files are not marked dirty when Inspector fields in Attributes category are changed
- SVG file icons do not use the default asset icon when Vector Graphics package is not installed
- UnmanagedReadOrWrite objects are not disposed off when GZipStream is used in the "using" statement
- Android build fails when StreamingAssets contains 998 or more files
Resolution Note:
Thank you so much for your detailed report! We’ve reviewed and were able to reproduce the issue you described, but we believe this behavior is working as intended. The brightness differences observed in the scene objects are caused by the default baked Global Illumination (GI) process, specifically from indirect diffuse and specular lighting derived from the skybox texture.
As the skybox texture is HDR, sampling neighboring texels leads to accumulated or interpolated color values. These values can exceed the standard range of [0, 1], which impacts indirect lighting and, in turn, influences the brightness of objects in the scene.
Point sampling retrieves discrete texel values without accounting for neighboring ones, which can result in fragmented and less natural lighting effects, particularly due to the resolution limitations of sky cubemaps. Bilinear sampling interpolates neighbouring texels to create smoother, more visually pleasing results and more continuous and realistic lighting.
Thank you again for bringing this to our attention! If you have any further questions or encounter other issues, please don’t hesitate to reach out.