Lightmap Compression Artifacts - DXT5 to BC7

Unity Engine
,
1

I’m getting these lightmap artifacts when I switch the lightmap’s compression from DXT5 to BC7

  1. Is there any way I can remove these artifacts?

  2. Alternatively, is there a way to set the lightmap’s compression type before baking? (in my case it always defaults to RGBA Compressed DXT5 sRGB)

Thanks in advance

1 Like
2

  • The easiest way to do so is by switching to High Quality Lightmap Encoding in the Project Settings > Player. Keep in mind that you would need to do this for every affected platform.

  • In 2021.2, you also have explicit control over lightmap compression quality in the Lighting settings window.

  • Follow the steps outlined above. Otherwise, you can override it manually in the texture importer.