As title said, after adding Subsurf modifier, some UV is disorted.
If mesh has simple geometry, I can fix it, but sometimes it's too complicated or can't fix it because it's getting worse.
This is the example model that I faced this problem:
Top image is low poly and lower image is high poly mesh that applied sub-surf modifier.
As you can see those red lined boxes, some UV is disorted and I can't fix it.
Is there a way to fix this problem?
Also I mostly prefer using Smart UV Project, because when I unwrap my mesh manually, each UV island has different ratio.
Is there a way to adjust ratio of UV islands automatically?