Smooth shading on model causes weird artifacts it's more visible with matcap, it looks like it's all distorted metal hit with a hammer, but in edit mode the topology looks smooth for me.
i'm a beginner in modeling/blender, i've tried recalculating normals, adjusting various points, using some addons to &quot;relax&quot; the topology and smoothen it, nothings worked, adding a subsurface modifier set to 1 makes the effects disappear but then the model is too high-res for my low poly game, i want to keep it very performant.
blend file
Try to disable &quot;autosmooth&quot; (object data properties tab and normals section) and clear custom normals (object data properties tab and geometry data section)

Answered by lemon