Parameter

Parameters in TouchDesigner only exist in Operators (OPs or "nodes"). Parameters include:

• numbers, both integer and floating point
• number pairs, triples or quadruples (e.g. width and height, XYZ position, RGBA color)
• on-off flags
• menus
• text strings
• paths to other nodes in TouchDesigner networks
• buttons that initialize actions (uncommon)

Fields in dialogs and options to commands are not parameters.

Parameters can contain expressions and variables. The most common Expressions are the tab() group, which fetch from DAT tables, and the chop() group, which fetch from CHOP channels.

Parameters are also controlled by Exporting channels from CHOPs. In the example Parameter Dialog below, the Y-Transpose parameter is being controlled via an export. This is indicated by the maroon color of the parameter name in the dialog.

See also: Parameter Dialog