Override for WebGL worsens quality when using Cruched DXT Format

Unity: Texture

As Designed

2023.2.X

2023.1.X

2022.2.X

2021.3.X

2020.3.X

This is expected, since the override switches to an LDR format. Observe that there is no significant quality difference between "Crunched DXT1" and "DXT1", or between "Crunched DXT5" and "DXT5"; it's the jump from HDR "BC6H" to LDR "(Crunched) DXT1/DXT5" that causes the quality reduction. Work is scheduled to investigate how to inform the user in the UI when non-optimal compression settings are used.

Reproduction steps: 
1. Make sure that WebGL platform support is installed
2. Open project “IN-29539_LIGHTMAP issue“ 
3. Select “Assets\Lightmap-0_comp_light” in the Project  window
4. Enable “WebGL\Override For WebGL” 
5. Select “RGB Crunched DXT1|BC1" or “RGBA Crunched DXT5|BC3" for Format and Apply

Expected result: The file does not change
Actual result: The quality of the file worsens and the colors become darker

Reproducible with: 2020.3.45f1 (using “RGBA Crunched DXT5”), 2021.3.18f1, 2022.2.6f1, 2023.1.0b2, 2023.2.0a1 

Reproducible on: macOS Catalina 10.15.7 (Intel)

Note: also reproducible with Standalone Player

Override for WebGL worsens quality when using Cruched DXT Format

Unity: Texture

As Designed

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Override for WebGL worsens quality when using Cruched DXT Format

Unity: Texture

Statuses

As Designed

Resolution Notes

Description

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