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I'm quite new to Blender and I have a problem when I'm using Shade Smooth. As soon as I am shade smoothing The object with the hole in it, there are some weird color changes around the hole. It doesn't change in the rendered image. enter image description here

The holes where made with the boolean modifier. Am I doing it the wrong way or is there a way to fix this?

Manuel Kreisler
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  • In the mesh properties panel turn on "Auto Smooth" and adjust its value below 90°. https://docs.blender.org/manual/en/2.79/modeling/meshes/editing/normals.html#properties – FFeller Jul 24 '20 at 18:44
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    bad topology will always come and haunt you. Avoid boleans.. – susu Jul 24 '20 at 18:44
  • https://blender.stackexchange.com/questions/14040/cutting-holes-with-boolean-modifier-makes-subdivision-surface-impossible – susu Jul 24 '20 at 18:48

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Avoid boolean to create holes in a mesh. It will always create really bad topology and then when you apply subdivision and smooth shade, everything is going to fail.

Sanbaldo
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