Rune Skovbo Johansen14h 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 Johansen

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

2:49pmWeb
Show threadrojun11h ago
@runevision @lisyarus
Show threadAras Pranckevičius10h ago
@runevision most excellent. Did I tell you that you have a superpower of going really deep into rabbit holes like that, emerging with fantastic stuff?
Show threadRune Skovbo Johansen10h ago

@aras Thanks a lot Aras! Yeah I think you have mentioned it before :)

My skills as a programmer are very spotty and uneven, but I do try to make the most of the things I excel at, and am fortunate to be in a position where I can focus on that.

Now, if I could also learn one day how to do profiling properly...

Show threadBen Throop7h ago

@runevision I agree. Superpower!

This is awesome. I want to use it.

Show threadRune Skovbo Johansen6h ago
@benthroop Please do! Would love to see that! :)
Show threadpaperManu2h ago
@runevision Is that... Terragen in a (few) shader(s)? I love it!