There's no reason why you shouldn't be able to connect colour into a transparency slot. The only thing I can think of would be that you can't connect a single colour channel to an attribute which expects 3. e.g. you can't connect "outColorR" to "transparency", but you can connect "outColorR" to "transparencyR",…
Hello, I'm trying to create a layered Material in Maya, mapping the RGB channels from a mask to the the transparency channel on each layer (much lika a "splat" texture in Unity). Problem is it seems like only outTransparency can be connected successfully to the transparancy slot. When I export the RGB channels of the mask…