CVEX is VEX code that runs outside a context.

• In other uses of VEX, such as shaders, Houdini provides many functions and predefined variables related to the context such as Cd for the diffuse color in the surface shader context.

• CVEX doesn’t have predefined variables. It is just a program that Houdini calls with certain arguments (usually corresponding to points or data on points).

For example, you can use a CVEX shader to modify guide hairs for fur. Houdini calls the CVEX program with all the attributes on the geometry and the program can modify them, such as P to modify point positions.

For more information on this subject, see CVEX shaders for fur.

Parameters ¶

SHOP Type Name

The name of the new operator type defined by this network.

Show Operator in Tab Menu

If this option is turned on you will be able to access your shader from the Tab Menu in the SHOP network.

See also

VEX Particle Operator VEX Geometry Operator