I want to make a post process/shader effect that recreates the sort of look. I want messy outlines, hatching, and some sort of cel shading, like a dark edgy comic book. Maybe some sort of papery texture. Here’s a reference:
Any help is appreciated.
So this is a hard effect. Your best bet is probably the marketplace.
Failing to find something you want, or wanting to do it yourself, you’ll probably find what you want here:
It’s Decuyper Delphine’s graduation work. They go into 17,000 words of detail, talking at length about crosshatching and other effects that went into the final shader.
They start talking about hatching on pages 36 and 54, as laid out in the table of contents.