User Manual

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TIP: When working with long SimpleExpressions, it may be helpful to drag the
Inspector panel out to make it wider or to copy/paste from a text editor or the Console.
After setting an expression that generates animation, you can open the Spline Editor to view
the values plotted out over time. This is a good way to check how your SimpleExpression
evaluates over time.
A sine wave in the Spline Editor, generated by the expression used for Text1: Size.
For more information about writing Simple Expressions, see the Fusion Studio Scripting Guide,
and the official Lua documentation.
Pick Whipping to Create an Expression
With a SimpleExpression field open, a + button is displayed on the left side. Dragging the +
button onto another control, or “pick whipping,” links the two parameters, similar to the Connect
To menu. However, unlike a Connect To parameter link, the pick whip allows you to modify the
connection by further editing the expression.
TIP: Hovering over a tab while pick whipping will open that tab.
Pick whipping to connect one parameter to another quickly.
SimpleExpressions can also be created and edited within the Spline Editor. Right-click on the
parameter in the Spline Editor and select Set Expression from the contextual menu. The
SimpleExpression will be plotted in the Spline Editor, allowing you to see the result over time.
Removing SimpleExpressions
To remove a SimpleExpression, right-click the name of the parameter, and choose Remove
Expression from the contextual menu.
Chapter – 63 Using Modifiers, Expressions, and Custom Controls 1270