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I was trying to bake textures for export to Unity and kept running into the same problem. Everything seems to work fine until I try to bake a normal map from generated shaders.

Settings are as follows (I get the same problem in CUDA):

enter image description here

As for render settings:

enter image description here

When I try to bake diffuse with GPU Compute, the output is as follows (Correct):

enter image description here

When I try to bake normals with GPU Compute, the output is as follows (VERY Wrong):

enter image description here

Then, every map I try to bake (diffuse, roughness, etc) with GPU Compute after that outputs either a blank image or fills the empty space just like in the normal map image above. ^^^

I can bake using CPU but it is much slower compared to my GPU.

Anyone know what's going on?

S4MvR41
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  • I would file a bug report directly with Blender, include the Blend file also. In Blender Click Help -> Report a Bug – Rick T Oct 21 '23 at 12:03
  • @RickT Thank you, I'll do just that. Also hoping someone here has a solution.

    Also, brief update. If I close and re-open the file, it goes back to behaving as normal for other map types, but always breaks when baking normals.

     – S4MvR41 Oct 21 '23 at 12:16
  • @S4MR41 It might be helpful to people trying to help you if you uploaded an example blend file to the site https://blend-exchange.com and add that link in the question directly. – Rick T Oct 21 '23 at 12:21
  • Have you tried to reduce the number of samples for the normal map as a workaround? There is not much difference between 16 and 128 samples except that 128 samples take much longer to calculate. Have a look here: https://blender.stackexchange.com/questions/84897/do-samples-affect-normal-map-baking. (I don't know if it helps as the question is 6 years old and Cycles can bake textures with denoiser enabled these days.) – Blunder Oct 21 '23 at 14:20
  • It looks like this question is about the same problem: https://blender.stackexchange.com/questions/303372/problem-baking-normal-maps-in-blender – Blunder Oct 23 '23 at 02:05

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