Toon Shader: Is there a way to control the area/shape of Rim light?

MeowMoo

Hi guys!

I am wondering if there's way to limit the area of the rim light in arnold toon shader. I tried to appoint a light source to the rim light but it doesn't seems to effect anything. I would like to get rid of the rim light in the mouth and under the nose. Is there a way I can limit the area where the Rim light can go?

My final goal is to make my rim light look like this. Though I am not sure how they did it. 

(great short film "Sonder" by Neth Nom)

Any hint or idea will be appreciated! 

Alex_J

https://roystan.net/articles/toon-shader.html

not arnold, but the principle may be the same as whats in that tut ^

RN

I haven't read the article @Alex Javor pointed out so I might be repeating it, anyway, those problem areas have both rim light and shadows, so setup the nodes in a way that doesn't let rim light appear on shadowed areas (the shadows should kill the rim light)