Adds arbitrary primitive variables to objects. Currently only primitive variables with constant interpolation are supported - see the OSLObject node for a means of creating variables with vertex interpolation.
Container for user-defined plugs. Nodes should never make their own plugs here, so users are free to do as they wish.
The processed output scene.
The on/off state of the node. When it is off, the node outputs the input scene unchanged.
The input scene
The filter used to control which parts of the scene are processed. A Filter node should be connected here.
The primitive variables to be applied - arbitrary numbers of user defined primitive variables may be added as children of this plug via the user interface, or using the CompoundDataPlug API via python.