User Manual

A modifier’s controls are displayed in the Modifiers tab of the Inspector. When a selected node
has a modifier applied, the Modifiers tab will become highlighted as an indication. The tab
remains grayed out if no modifier is applied.
The Modifiers tab with two modifiers applied.
Modifiers appear with header bars and header controls just like the tools for nodes. A modifier’s
title bar can also be dragged into a viewer to see its output.
Combining Modifiers and Keyframes
Modifiers that auto-animate parameters like Perturb and Shake can be combined with
keyframes to create more natural, organic looking animations. For instance, you can create the
general motion path for an element by keyframing the Center X and Y parameters, and then
apply a modifier to the same parameters to create a secondary wiggling motion.
To combine a keyframed motion path with a Perturb modifier:
1 Add a Transform to an image like a butterfly or spaceship.
2 Select the Transform node in the Node Editor.
3 In the Inspector, click the Keyframe button to the right of the Center X and Y
parameters.
4 Position the butterfly or spaceship image where you want the start of the
animation to begin.
5 Continue to move the playhead in the render range and reposition the image until you
create a figure-8 motion path.
6 Right-click over the Center X label in the Inspector and choose Modify With > Perturb.
7 Click the Modifiers tab at the top of the Inspector and adjust random, wiggling motion
by setting the Strength, Wobble, and Speed parameters while the animation plays.
Publishing a Parameter
The Publish modifier makes the value of a parameter available, so that other parameters can
connect to it. This allows you to simultaneously use one slider to adjust other parameters on the
same or different nodes. For instance, publishing a motion path allows you to connect multiple
objects to the same path.
Chapter – 63 Using Modifiers, Expressions, and Custom Controls 1265