Preserve UVs doesn't.

dejawolf

just a rant, doubt it can be fixed, or don't know if its been fixed in later versions:

basically, preserve UV is messed up when working on areas with seams, like shown in this video:
http://www.dejawolf.com/polycount/errars.avi

the error happends only when moving the vertex shown selected.
there's some distortion when moving the other vertex around, but the distortion is much smaller.
it works fine on unsplit vertices though.

Flewda

Make sure that the faces sharing that vert aren't more than 4 sided. I believe a quad or triangle will work well almost all the time, but in my experience, more often than not, if the face is an n-gon, it will get bad distortion when using that tool. I find that if I turn it into triangles or quads and then try again, the problem will be fixed. Give it a go.

dejawolf

yah, works better much less distortion.

Ott

The "Preserve UVs" works almost as good as "Ignore Backfacing". When you really, really need them to - they don't.

Tumerboy

lol Preserve UVs works pretty well within any UV island, but it doesn't work well at all on seams and edges.

Mark Dygert

It also doesn't play too well with cuts or welds. But does ok with connect and collapse.

renderhjs

I think its still awesome that max has this- and works often surprisingly well considering the complexity that has to work under the hood.

Mark Dygert

Agreed. And if you know which tools work best with it, then its almost pure win all the way around.