2e568d31ed
One obvious problem is that `mr.use_simplify_normals` was assigned after face corner normals were retrieved. The other more complex problem is that now the normals caches automatically mix custom normals from other domains. This can cause the expensive "Tangent Space" normals to be calculated even though we don't explicitly request face corner normals. To fix this, clarify the purpose of the option to only apply to that custom normals format and use the true normals instead in that case. Pull Request: https://projects.blender.org/blender/blender/pulls/140879
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