I’ve finally caved and come to the forums for help. As things stand I’ve been having this problem for 3 months now and have simply been unable to solve it.
At time of writing I’ve tried half a dozen methods from the ground up for cel shading, and sooner or later I always either run into this problem or the method as a whole is unviable.
This “noise” has become the bane of my existence. Anyone willing to help me slay this beast will have my eternal gratitude.
Below is an image of the simplest cell shader I have that also suffers the issue
Im suprised you got that far. My best guess is SSR noise is getting amplified by the shader.
Edit: Or SSAO
It wasn’t exactly the answer but thank you, it helped me mostly fix the issue. I toggled off all the screen space effects I could find and that cut down the issue drastically.
You might be able to hack ssr/ssao back in somehow if you want it, to work with cel shading properly, but im not sure how easy/hard it will be. Likely you will have to apply it after cel shading to get it to work.
I’ve nailed it down to static ambient occlusion that was being the most egregious contributor to the issue. Having the shadow threshold at 0.5 also contributed, pushing it down to 0.45 helped a lot without sacrificing too much fidelity.
This is how I’ve got it looking now if anyone is curious.
