Distort texture

Hi, everybody.
There was a problem with surface texturing. It is necessary to get rid of distortions. What are your ideas?

distortion.3dm (2.9 MB)

Hi Dmitriy - I see the distortion when I open your file here but I don’t know how it got that way.
You are running Rhino 6.1 - the current release of Rhino 6 is 6.32. Please update to that current release and then provide steps to reproduce the issue from scratch.

Loft between two circles
distortion.3dm (2.8 MB)

Hello - am I correct that you applied some uv unwrap to the ‘good’ one and then deformed a copy of that?
If you apply surface mapping it cleans it up, but you may want to reverse the UVs (Dir command) to get the pattern going the way you have it mapped.

distortion_PG.3dm (2.8 MB)