Parameter Reference
A parameter reference can be setup between any two integer or float parameters. This creates a link between the two parameters such that they will be equal.
Source Parameter - this parameter is being referenced by another parameter.
Referenced Parameter - this parameter's value is linked (referenced) to the source parameter.
Any change in the source parameter's value will change the referenced parameter's value.
Making a Parameter Reference[edit]
Using right-click menus
1) Right click on any parameter and select Yank Parameter. This will be the source parameter.
2) Go to the parameter you wish to be referenced, right-click and select Put Yanked References
Using expressions
1) Use the TScript par() expression in the parameter field to directly reference another parameter.
Usage: ch("path_to_source_parameter")
Examples:
par("radx")par("geo1/torus1/radx")
Parameters in TouchDesigner are an operator's settings (numbers, menus, flags, strings, paths) which the user can alter. Parameters for any operator can be opened by right-clicking on the operator and selecting "Parameters..." A currently selected operator's parameters can be viewed in a Network Editor by pressing the keyboard shortcut 'p'.
A parameter reference can be setup between any two parameters. This creates a link between the two parameters such that when one changes, the other will change automatically (known as "constraints" in other software). A Parameter reference is a type of Link.
