My brother wrote a rather nice clojure library that does 4D texture generation https://github.com/mikera/clisk https://github.com/mikera/clisk My simple gamer

My brother wrote a rather nice clojure library that does 4D texture generation https://github.com/mikera/clisk https://github.com/mikera/clisk My simple gamer (ie every texture is 2D) brain had a bit of trouble coming to terms with continuous 4D textures, and I think it was talking about how Perlin noise could be continuous that made the idea stick eventually.