Fractal surface node

Creates jagged mountain-like divisions of the input geometry.

All

Parameters

Example files

See also: Mountain

This node will create random-looking deviations and sub-divisions 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 Vertex Normals	Sets direction of fractalization to direction of source normals.
Direction	Direction of the fractalization.

Example files

FractalGeoTypes

$HFS/houdini/help/examples/nodes/sop/fractal/FractalGeoTypes.cmd

Load | Launch

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.

Usages in other examples

Example name	Example for
Hills	Smooth surface node	Load \| Launch
ProxyGeometry	Dop Import surface node	Load \| Launch
PointTerrainErode	Point surface node	Load \| Launch
BreakingRock	RBD Glue Object dynamics node	Load \| Launch