Woooooaaaaaahhhh! Painting a Landscape with Maths is bloody awesome: https://www.youtube.com/watch?v=BFld4EBO2RE

have you seen this by same author?
https://humanshader.com

It’s amazing to me how with ‘simple’ operations you can reach to that image. Although it’s a simple one, it always thrills me, like when I was a kid in the 90s.