Hello!
My first ZBC thread! 
I was experimenting with the posterize effect to create a well-functioning Anime style material. I was fairly successful and thought I would post the result on the forums in case anyone else was interested 
Iām new at rendering and materials in Zbrush and achieve most of it by trial and error. 
For each subtool I have a different version of the tweaked material to better match the polypaint on it. I tweak it with the Ambient and diffuse settings in the material modifiers.
The reason for this is that the posterize effect behaves differently depending on the polypaint underneath. The issues occur with very light as well as very dark colors that tend to get undesirable effects. This becomes especially difficult however if there are several different colors on the same subtool.
Here is an example of how the face material settings and polypaint looks:
I set the posterize level in the material to 2.
I also added filled outline. Experiment which line depth that works best for your project.
Some highlights that I wanted to always look the same in all angles I painted on using MRGB and a white bright MatCap. Example:
[To be continued]
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