Continously "Missing Uvs" on import in Mudbox 2014

Stu2Prof

Hey guys,
I have a tricky model that keeps returning me "Missing UVs" errors on import into Mudbox 2014. To try and resolve the problem I have been creating just the missing UVs in Mudbox then exporting out to 3ds Max where I relax, pack them down and re-export. Trouble is that although I've done this 4-5 times I am still getting the error. There is a decrease in the number of missing UVs that Mudbox is finding but it never goes down to zero. Got any tips?

Here are some screenshots:
http://imgur.com/a/iWytJ

Thanks for any help you can give

musashidan

From what I remember of MB from a few years back, it is extremely sensitive about UVs. Have you checked for inverted/overlapping faces, not enough padding, too close to your UV space border, shells that haven't been unwrapped, etc?

Stu2Prof

Hey Musashidan

To the best of my knowledge all of those parts have been resolved using the Overlapping/Inverted Faces detection mode in the 3DS Max UV editor. The only chance is the UVs towards the tip of the branch being a bit too small. I tried reimporting the Mudbox corrected mesh without packing everything in 3ds max and it seems to have worked. I guess whatever the UVs are layed out there are a couple spots where things are too squashed together.

thomasp

which format are you using to export to mudbox? never had a problem with OBJ.

Stu2Prof

@ThomasP OBJ is the one I'm using too