This video of morphing and turning space rocks was created not by sculpting or modeling in the usual way, but rather by using fractal mathematics. (Video link).
One of the principles of fractal geometry is self-similarity, where large forms are composed of smaller and smaller components that share the same geometry. This is a design principle found in nature in rock forms, cloud shapes and branching forms. Fractal powered digital graphics provide a a tool for building worlds for animation and computer games.
The video was by Julius Horsthuis, rendered in Mandelbulb 3D, with music by Maurice Horsthuis.