This will my final post for this particular series. For a breakdown on the shader see this topic
Here I will share some tips on matters other than shading.
What’s with the weird geometry in the Viewport Render?
Those are meant to be brush strokes bleeding out of the outline. You can notice them if you look at the final renders closely. They are simply cubes instanced on vertices at grazing angles with a volume material on. I think (and hope) they help with the painterly effect.
I sculpted a simple base using the snake hook brush with dyntopo and drew some semi-transparent curves on it. It’s quite rough, but a Kuwahara filter simplifies the shapes.
Amazing breakdown! Quick question, how did you texture the outline? Did you texture the outline? In your renders it seems to have a darker color. My outlines are splotchy and sort of just the texture of the skin. I would want a solid darker color similar to yours.