"Samuel B." <stb### [at] hotmailcom> wrote:
> "Kirk Andrews" <kir### [at] tektonartcom> wrote:
> > To do this *right*, I'm thinking you'd have to do a full-blown physics
> > simulation.
>
> Hey Kirk,
>
> I'm not sure if this is helpful or not, but if your computer has a GPU
> supporting pixel shaders, check out this one I posted a while back:
> https://www.shadertoy.com/view/XsKGWG
>
> It approximates hydraulic erosion on a height map, using a sort of basin-filling
> method as a key part of the process. It won't form rivers on flat plains, since
> momentum isn't taken into account (would need to probably implement
> Navier-Stokes equations for that, which would be difficult using Shadertoy since
> a fluid sim needs to iterate over a certain operation some 30-50 times per
> frame, to the same texture). Also, the lakes seem to be slightly sloped.
>
> Sam

Wow! I'd never heard of Shadertoy. Is it possible to download the resulting
height map?

Post a reply to this message