Distorted cylinder texture

Udjani

I can't figure out the problem here, both of them have almost the same topology, and unwrapped the same way, the distorded one have longer polygons. I tried some diffrente approach but could only make it better by inserting a loop, but maybe there is a better way to solve this? 

kat

If that's Blender (looks like it?) that typically happens when the warped image is mapped to an nGon or other quad+ surface, especially if it contains non-axial or non-planar shapes/structures. If you "Tessellate" (Ctrl+T) and rebuild (Ctrl+J) the quads it should de-twist without necessarily requiring a remap of the UV - basically the UV and texture mapping is doing what sometimes happens when trying to fill an nGon edged whole which cause the resulting face to twist all over the place.

Udjani

@kat. Yes its blender, i think that i not really understanding the terminology or maybe bcz i have some hk changed, but by rebuild(ctr+j), you mean tris to quads? If yes, then dindn't work. But its probably me doing something wrong.

kat

Select the offending face and Ctrl+T. Once it is broken down into triangles Shift+right-click neighbouring PAIRS then Ctrl+J to join them together into a Quad. You might have a few stray triangles (which is ok), but unwrapping should then work as expected.