weird problem with uv's in 3ds max

David1983 · Jul 2014

hey guys.
I have a really weird problem with my UV'S in 3ds max...
The UV's are looking correctly in the editor but when i put the Checker Pattern on them i see some deforming which are simply not to explainable for me...

Any ideas from who this defomrings are comming ?

Steppenwolf · Jul 2014

Pretty sure you have an extra vertice in there somewhere that sits very close or on top one of the other vertices in your selection.

Eric Chadwick · Jul 2014

Long thin polygons will smear your UVs unless you make them the same aspect ratio in the UVs as they are on your model.

To remove all distortion you need to split the UVs along the corners of your mesh there.

Ott · Jul 2014

As Eric said, split the edges here and then use the Relax tool on the faces.

David1983 · Jul 2014

ok many thanx, hopefully it will work.... i will try it today...
this kind of problems "Long thin polygons will smear your UV's" are really fu***** up.
Is there no button / function in max to make the polygons the same aspect ratio like on the mesh ?

Eric Chadwick · Jul 2014

Relax

theStudent · Jul 2014

@David1983,

There is a button in max for rescaling the uv's to the same aspect ratio called "rescale elements". It's in the uv editor > arrange elements rollout > bottom left button beneath Pack:custom.

Also, I've had that issue when I've tried to copy/paste uv's to objects that have not been properly uv'd. This is not to say it is your case.
Lastly, maybe do an stl check for open edges between poly's or maybe a weld verts in the uv editor or even on the mesh itself.
Hope that's helpful.
Good luck!

Eric Chadwick · Jul 2014

Those are all good tips. But, Rescale Elements will not solve the stretching in this case, it will only scale whole elements so their pixels are the same size. Which is a good thing anyhow!

This is mostly a case of just trying to UV large chunks, without using enough seams to solve the distortions.

weird problem with uv's in 3ds max

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