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This node will create randomlooking deviations and subdivisions along either a specified normal vector (the Direction xyz fields) or the vertex normals of the input geometry. This is great for the creation of terrains and landscapes.
This node works on polygons or meshes.
Using Fractal

Select the primitives to deform.

Click the Fractal tool on the Deform tab.
Note
A directional and scaling handle is available at the geometry level of this node. You can also modify the direction and scale in the parameter editor.
Parameters
Group
Subset of geometry to apply the fractal effect to.
Divisions
Number of subdivisions of the Source geometry.
Smoothness
Inversely scales the deviations per division.
Scale
Scales amplitude of deviations.
Seed
Seeds the random number generator.
Fixed Boundary
Prevents boundary edges from being fractalized.
Use Point Normals
Sets direction of fractalization to direction of source normals.
Direction
Direction of the fractalization.
Examples
FractalGeoTypes Example for Fractal geometry node
This example demonstrates using the Fractal SOP to deform geometry to get a random, jagged subdivision surface. This is a useful tool in creating things such as bumpy terrains, landscapes, rocks, or debris.
The Fractal SOP is applied to each geometry type to show how the displacement changes based on the geometry type.
See also 