This node references a (textual) VEX program which can use SOP context VEX functions to manipulate attributes on geometry points. (To define a VOP network instead of a VEX program, use the VOP SOP instead.)
See creating a VEX surface node type for information on how to write the VEX program.
This node is for "one-off" programs to manipulate geometry in a single surface network. To use a VEX program to define a reusable surface node type, see creating a VEX surface node type.
If you enter the name of a point group in the first input geometry in this parameter, only the points in that group will be affected by the VEX program.
Path to the compiled VEX program. You must use vcc to compile your source code and point this node to the compiled file.
Number of threads
The number of separate threads to use to evaluate the points. The default is no threading.
Since Houdini evaluates the VEX program for each point in the input geometry, it can benefit greatly from threading on a multi-processor or multi-core machine.
Reload VEX functions
Reloads the referenced compiled VEX file.