Here is my attempt to make procedural erosion in substance designer. I've started this project long time ago and finally can show you some progress. All done in substance designer and 100% procedural. This material allows me to create quick mountains in couple clicks with infinity variations. For color I've done simple 3 layers and defined them: mountains, grass and water. This layers can be used as masks/splat data. I am planing to play with this stuff later in game engines.