Correct me if I’m wrong, but isn’t this just heightmap manipulation? Houdini (software) has the ability to do all the types of procedural terrain generation seen here and more, including blending multiple heightmaps being stitched together. There is other software capable of producing similar results as well e.g World Machine. Not entirely sure why they went and built it from the ground up in Substance designer.
It’s fast 🙂 World Machine is very slow and can be a bit annoying exporting things out and then importing them in. It’s also not very tileable friendly. Houdini is amazing, but we wanted to have a workflow that allows us to be as integrated as possible with our existing pipeline. Substance Designer has been invaluable in our terrain making as well as general material making in the studio.