Rune Skovbo Johansen3d ago

My erosion filter is out! Video, blog post, and shader source.

It emulates erosion without simulation, so it's fast, GPU friendly, and trivial to generate in chunks.

Explainer video:
https://www.youtube.com/watch?v=r4V21_uUK8Y

Companion blog post:
https://blog.runevision.com/2026/03/fast-and-gorgeous-erosion-filter.html

#ProcGen #vfx #GameDev

Show threadRune Skovbo Johansen3d ago

Here's the Shadertoy where you can paint eroded mountains and islands with your mouse, right in the browser:
https://www.shadertoy.com/view/sf23W1

#ProcGen #vfx #GameDev

Show threadRune Skovbo Johansen2d ago

Here's the other Shadertoy, that shows off various animated parameter changes in erosion strength, scale, detail, and ridge and crease rounding.
https://www.shadertoy.com/view/wXcfWn

(You can temporarily control the camera angle while dragging with the mouse.)

#ProcGen #vfx #GameDev

Show threadNick Ludlam1d ago
@runevision In terms of The Big Forest, are we going to be able to walk down roads carving their way along your eroded mountains?
Show threadRune Skovbo Johansen
@nick Probably, in some form! The terrain in The Big Forest will be generated primarily based on level design, but I want to try to apply erosion in a subtle way.
Mar 31 at 6:23pmWeb
Show threadNick Ludlam1d ago
@runevision Aah, I didn't realise there was level design happening in TBF. For some reason I had assumed it was all seed based
Show threadRune Skovbo Johansen1d ago
@nick It is, I mean procedural level design. :)