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OK, this is really bugging me now. Why does 3D Coat generate such weird normal maps when compared to other programs? These weird normal maps do work, but they cause shading artefacts in Blender Cycles, so I would like to know the reason. I have played with the normal map settings in 3D Coat's preferences, but I am no closer to understanding. To illustrate what I am talking about, see the three attached normal maps. These are all created from the exact same high poly and low poly meshes (basically a cube with some patterns drawn on in 3D Coat's sculpting room). All maps are 2k, and should be Tangent Space. The two that look kind of similar were generated in Blender and Substance. The one that looks totally different is generated in 3D Coat. To be clear, I am not just talking about the padding. I know that 3D Coat uses a different mechanism for the padding. I am talking about the actual faces of the cube. Blender and Substance seem to deal with this "correctly", and you can see a flat surface with the pattern drawn on. 3D Coat does not. Why is this? ModelFiles.zip