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Substance Painter - Technical Support - Re: [Scene 3D] [FBX] : Mesh normals are invalid (some values are null)

 on: June 25, 2021, 01:05:49 am 

One more thing. If you are using blender and you import mesh from other 3d application and do small changes. Make sure you "Clean Custom Split Normals Data" at Object Data Properties -> Geometry Data. Bloody thing was giving me errors, I was looking for some incorrect mesh or normals, but it turned out to be a simple solution. Wasted time, but at least now I will know in the future