http://docs.autodesk.com/MUD/2015/ENU// ... r_PTEX.htm
basically it doesn't use a UV map or projections
when you increase the amount of Ptex its increases Resolution
This is a quote from the help page
"Before you can begin PTEX painting, you must set the overall resolution required for each base-face of the mesh. You can specify different base-face resolutions for different areas of the model, which means you can allocate the texel budget to areas where higher resolution is most needed, for example around the eyes of a character's face. Mudbox uses the resolution information to create paint layers. For PTEX models, this paint information is stored in one or more PTEX files. "
and when I imported the model back into maya the uv map looked like this
Can anyone actually explain properly what PTEX is, and if I can use for my 3d assignments because in theory it is unwrapped although it does say it doesn't use UV for textures
