Do you know any way I can do toon shading while layering textures on top of it?
I am using tutorial for the toon shading: https://support.solidangle.com/display/A5AFMUG/Toon+Shading+with+the+Facing+Ratio+shader). I want to layer other textures (eyes, eyebrows and mouth) on top of it. While the toon shading works by itself, all my attempts to add layers have failed: I tried layered texture or shader but every time my model goes completely black. It doesn't seem to be a problem with the alpha mask. It might be some a problem with using Arnold and Maya materials together. However I'm not sure anymore as I've tried everything that came to mind.