So, I've always thought and still think there is no hope of doing proper toon lines in Poser. The only thing that sort of works is an Edge_Blend with a threshold, but that doesn't do the right thing all the time. Sometimes, no line shows, and sometimes you get much more than a line.

We need a 2D edge-detect node and there's no way to do it. Everything in the node system is 3D.

I have some ideas for the shading - some of it seen here. But the lines seem impossible.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)