I have a map full of basic landmasses and mountains, and I want to apply an erosion simulation onto it to get better look / more realistic looking mountains.

I tried using wilbur for a while, but it seems to only be able to handle small sections of the world (like one continent at a time).

I have a full equirectangular map that I'd like to use, but I'm not sure if there's any programs that I can do this with.

Any help?