I'm getting strange shadows on the model: the normals are ok (already tried to recalculate them) so I have no idea what this could be.
Any suggestion?
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2$\begingroup$ See Shader artifacts rendering in some spots of the mesh, Smooth shaded model has odd shading and How to smooth shade an object while retaining hard edges? $\endgroup$– DavidJun 3, 2017 at 14:02
2 Answers
Add an edge split modifier, should clean up the messy normals.
If you cut those holes using a boolean modifier, your topology is probably mesed up. See: Applied boolean modifier leaving shading artifacts with flat shading
Using auto smooth will most likely fix this issue.
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$\begingroup$ thanks for your reply, but unfortunately this didn't work $\endgroup$ Jun 4, 2017 at 11:05