Hi,
I've found this interesting topic about a way to remap an existing UV into a new one using Blender.
https://blender.stackexchange.com/questions/50650/how-to-remap-my-uv-without-messing-with-textures-a...
When you use photogrammetry software like Photoscan (aka MetaShape) you often get a very unusable high poly model that you have to fix with a generated UV also hard to use in other software like Photoshop or Substance Painter. It would be nice if there is a way to create a less complex UV in 3ds max and remap with an easier solution than this one: http://maslov.co/blog/index/view/id/146
