Hi there, i work primarily as a 3D artist and texturing artist for games, just started working with RizomUV and it has been an exceptional experience so far. There is a feature i would like to suggest which would further streamline our workflow. as of writing it seems that there isn't a way to create colour ID maps by individual Polygons / UV islands and export png,jpeg or bmp per UV set.
Here's an example of how we would normally create a "Colour ID":
Color ID, aka Material ID, is something necessary mostly for the texturing part (or the polygroup / hard edge / smoothing groups part). RizomUV is an outstanding software specialized in unwrapping/packing UVs. Not exporting textures.
Fastest way to do IDs by the way (in my opinion) is by creating polygroups in ZBrush and converting them into a texture. And export it. WAY faster than dointg that in 3DS Max. (Polypaint from Polygroups -> Texture Map/Create/New From Polypaint)