Although there may be a rather convoluted work-around making an alpha layer from a diffuse map (in photoshop) to achieve transparent layers in 3dc, I was wondering if I missed something.
In the SMART MATERIALS/TEXTURE EDITOR I'd like to load a COLOR MAP (here's the 64,000 dollar question) which has TRANSPARENT areas in it - through which ANOTHER LAYER below it, on a COLOR MAP, would appear on the object, in order to make it possible to STACK color texture maps and get something like this (see image):
The black outline is the top layer, the red is the one below that, and the cerulean is the bottom layer.
How could I stack those three layers in the Smart Materials Texture Editor in the COLOR MAP section of each layer?