Hi everyone this is my first post.
I saw in a Siggraph video that is possible to “separate” every cluster group and use it as UV islands. I suppose that there is a way to isolate the color group edges to use them as UV seams but i cannot find a solution. Can you give me some hints? Thank you everyone.

Hello, today I was investigating that very same technique!
I kind of understood the workflow, please have a look at the attached file.

To note, there are few problems (which are showcased in the file as well):
- how to fix overlapping faces of the same UV island?
- Some clusters are flattened in 1 main island, + several floating prims around (this problem is also visible in the Siggraph Video).. Not a big deal I guess, but I would love to know why, for the sake of curiosity
- If we go for the “UV pelt” route, instead of the flatten, how to select the right HINTPRIM, so that the pelt doesn't produce weird results? (the Hintprim has shares edges with other prims)


I hope more experienced users can help us (-:

Cheers

Andr1
Hello, today I was investigating that very same technique!
I kind of understood the workflow, please have a look at the attached file.

To note, there are few problems (which are showcased in the file as well):
- how to fix overlapping faces of the same UV island?
- Some clusters are flattened in 1 main island, + several floating prims around (this problem is also visible in the Siggraph Video).. Not a big deal I guess, but I would love to know why, for the sake of curiosity
- If we go for the “UV pelt” route, instead of the flatten, how to select the right HINTPRIM, so that the pelt doesn't produce weird results? (the Hintprim has shares edges with other prims)


I hope more experienced users can help us (-:

Cheers

Sorry for the late answer, i was away from home.
Thank you for your time, i will look to your file as soon as possible and upload my own experiments, thank you again