Coding Adventure: Hydraulic Erosion

Sebastian Lague's Coding Adventure on simulating hydraulic erosion, where he builds a terrain generator that carves water-eroded valleys into procedural landscapes. It is a walk through the code and the results.

HN people recommend it as an amazing example of a coder building procedural terrain, and as a good companion to articles on erosion.

“a coder doing this sort of thing that is absolutely amazing”