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Fixed in 2020.1



Found in



Issue ID




GPU Lightmapper produces invalid texels in a certain scene

Global Illumination


Steps to reproduce:

1. Open the scene ArtPresent.
2. Bake GI using the GPU Progressive Lightmapper (options don't matter).
3. Notice that most texels in the scene are invalidated.


- Switch to Texel Validity visualisation in the Scene View. Observe that a big amount of pixels in the scene are invalid.
- Clearing the GI Cache, clearing Baked Data for the scene or manually deleting the folder that contains it don't fix the issue. The only way to fix the issue is to transfer the gameobjects to a fresh new scene.

Comments (1)

  1. 973227956e3d8eda18a3570d768711ba?d=mm


    May 20, 2020 08:28

    Thanks for sharing the post for us. In this post, the author shares some information about GPU Lightmapper, and it produces invalid texels in a certain scene. You gave a step by step instruction and easy to understand the issue.

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