3dsMax - select overlapped uvs?

GhosTDoG

Hi,

I'm looking for a script/tool, which selects overlappings UVs.

Textools got "shift overlap" but it doesn't work properly. Either it does nothing, or it selects all overlapping uvs.

What I need is something which selcts only the mirrored stuff on top of the original (bottom) uv island, while the original uv island stays untouched.

thx

Joost

Maybe not the most elegant solution but you can easily do this with modifiers.
Add a Vol. select modifier, set it to face selection level and leave the other options on default. Then just move the box gizmo so it covers everything which is mirrored. Then add a uvw xform modifier and set it to
offset U by 100 cm ( this number might be different depending on unit scale).

I've uploaded a more complex version of this here https://www.dropbox.com/s/9l2sxha0b7c4cke/ModStack.max?dl=0

It basically mirrors everything with mat Id 1, welds verts, offsets UVs and sets up a cage. While leaving the unsymmetrical faces untouched.

GhosTDoG

@ Joost

Thx a lot for the workaround.
---

I did some tests with textools.

It works only per object, without instanced unwrap modifiers - means, u can't use it with multiple objects with an unwrap modifier (instance) on top of your objects.

Joost

Yeah I usually don't bake many separate objects so it's not too much of an issue for me.

Eric Chadwick

I asked the guy who made PolyUnwrapper about this. He shared an in-progress script with me which does this... it selects the overlapping faces, breaks them (if welded), and offsets them, leaving one set of shells behind. Worked pretty well. I think he has plans to add it to PolyUnwrapper but just hasn't gotten to it yet. You should ask him about it.
http://www.polytools3d.com/index.html

spacefrog

You can use XView for overlapping UV selection

Views->XView->Overlapping UV's than pick Views->XView->Select Results

Only problem is, that the object has to be a collapsed edit mesh/or poly object
no stack or edit mesh/edit poly modifier

Pretty stupid limitation, as it would be great if XView would simply place a "Mesh select" onto the stack for this. i might take another look at the SDK sample code for Xview (already worked with it in the past) or maybe create a feature request ?

A way to automate this would be
* create a snapshot and select it
* xview overlapping UV
* xview select result
* add select mesh modifier
* copy&paste select mesh modifier onto original object
* delete snapshot mesh

...And script this whole procedure