And as you can see, there is nothing "rolling" about these hills. I took the fractal image above, imported into the Terrain Editor at 2048x2048, and inverted it. Then just added some procedurals slope-mapped with the original fire fractal, and threw in a light. The orange, firey parts of the fractal now create chasms and canyons. And as you can see, there is a massive level of detail in the geometry here. And this is just a quicky, the simplest fractal I could make in KPT5: Noize.