When I first playerd Shadow of the Colossus for PS2, I was amazed by the fur effect.

Shell texturing.

Here is an alternative Piped link(s):

https://piped.video/watch?v=9dr-tRQzij4

Piped is a privacy-respecting open-source alternative frontend to YouTube.

I’m open-source; check me out at GitHub.

More:

• Real-Time Fur over Arbitrary Surfaces
• Fur Effects - Teddies, Cats, Hair …