Strange artefacts when using Decimate modifier While using a decimate modifier, I get these weird shading artifacts:




I have managed to narrow it down to the Decimate Modifier causing the problem.


What is causing this weird shading?
How can I avoid it / how to fix it?
How can I keep the low poly count without doing it manually?
The fix was actually very simple, and I did not need to remove the Decimate modifier. All you need to do is just x&gt; "dissolve vertices" in Edit mode on every point where the issue occurs and it will fix the problem.