Hydraulic Erosion on mountains. This could be cool in Blender

[BigBlend]

Coding Adventure: Hydraulic Erosion

[BigBlend]

He used the GPU now to do the calculations and it’s like 80x faster.

[1D_Inc]

Geometry Nodes

I think I’ve finally managed to simulate hydraulic erosion in Geometry nodes! It’s been made possible with the new raycast node which allows you to sample attributes on other geometries: https://gfycat.com/bleaksmartbull It’s based on this code by Job Talle for fast hydraulic erosion simulation, which I converted into a geometry node tree. It works basically by instancing a bunch of points on the mesh (a.k.a. raindrops) and then simulating them rolling down the terrain step by step, eroding a…