How to make jagged geometry smooth/diagonal? Often times I select faces from my character's body and then duplicated them and grow them up in order to create clothes. However, sometimes this results in jagged clothes with hard edges. Is there a way to select all the jagged corners and moved them so that the clothes become smooth?

or any other suggestions to make clothes that are not jagged?

Here is what I mean. I selected some faces from the purple body and then duplicated them into the yellow pant (The gap is not part of the problem, it's just part of the style). The problem is the jagged geometry that makes it look "pixelated".
This is a bad topology with high poly count and work with this becomes hard and more inefficient.

You will need to adjust many things manually because the tools works based on topology of your mesh and if it has a bad topology, then, the tools have bad results too:

But using the Relax tool from the Loop Tools addon maybe you can solve your problem:

Loop Tools addon already inside in blender and to enable it go to Edit > Preferences > Addons and search for "loopTools"


Now you can use the Relax tool:


N panel > Edit > LoopTools > Relax