• Bugs
  • Unity Runtime - Preview window very dark

Unity has an option to change from default Gamma Color space to Linear Color space. Changing to linear color space produces a bug that makes Unity's preview window and object inside the window very dark. This only happens with Spine objects, other preview objects such as sprites and materials show up fine.

  1. In Unity, go to Edit

Project Settings


Player


Other Settings


Rendering


Color Space

  1. Change from Gamma to Linear
    (2.5. Restart Unity)
  2. Select a SkeletonData object in Project view
  3. The Preview window is very dark
Related Discussions
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Unity's preview window is known to act weird in certain situations.
We'll see what we can do.
Thanks for reporting!


It looks like Unity's PreviewRenderUtility API doesn't expose enough, and it seems to be something the internal code is doing.
https://github.com/MattRix/UnityDecompiled/blob/master/UnityEditor/UnityEditor/PreviewRenderUtility.cs#L148

Looks like the best we can do right now is file a bug report to Unity Technologies.