Lumpengnom Fractal Voronoi

This fractal voronoi shader node pack for Blender is useful for creating landscapes and rock formations. It also has a lot of other use cases.

You can find a discussion about Fractal Voronoi under:

https://blenderartists.org/t/your-help-is-needed-for-adding-fractal-voronoi-noise-into-blender/1448508/68

A GPU with more 10GB or more VRAM is recommended as it makes heavy use of adaptive subdivision.