Instruction Manual

Chapter 9 Behaviors 348
Reverse
Unlike the Negate behavior, which inverts the value of the parameter to which it’s applied, the
Reverse behavior reverses the direction of any animation that aects a parameter, whether it’s
caused by behaviors or keyframes. For example, when you apply the Reverse behavior to path
animation that begins at the left and moves to the right, the animation path won’t move, but the
object instead begins at the right and moves to the left. The Reverse behavior basically switches
the beginning and ending points of animated objects.
Parameters in the Inspector
•
Apply To: A pop-up menu that shows the parameter aected and can be used to reassign the
behavior to another parameter.
Stop
The Stop behavior suspends parameter animation (created by keyframes or applied behaviors)
of an object. For example, if you assign the Stop parameter behavior to the Position parameter
of an object moving across the screen and rotating, the object ceases to move across the screen
but continues to rotate.
Each behavior’s eect on the object is frozen at the rst frame of the Stop behavior in the
Timeline. Keyframes applied to that parameter cease to have any eect for the duration of the
Stop behavior in the Timeline. If the Stop behavior is shorter than the object to which it’s applied,
all keyframes and behaviors aecting that channel immediately take eect after the last frame
of the Stop behavior. For more information on using the Stop behavior, see Stop a behavior on
page 307.
Parameters in the Inspector
•
Apply To: A pop-up menu that shows the parameter being stopped and can be used to
reassign the Stop behavior to another parameter.
Track
The Track behavior applies tracking data to a parameter of an eect, such as the center point of
the Light Rays lter. For more information on using the Track behavior, see Track on page 959.
Wriggle
The Wriggle behavior works similarly to the Randomize behavior, but with a slower eect.
Tip: A Wriggle behavior applied to an Opacity parameter set to 100% does not have much eect.
This is because there isn’t much room to “wriggle.” For a better result, set the Opacity to 0, or
change the Apply Mode to Subtract.
Parameters in the Inspector
•
Amount/Multiplier: A slider that denes the maximum value that the Wriggle behavior
generates. The Amount slider is available when the Apply Mode is set to Add, Subtract, or Add
and Subtract. The Multiplier is available when the Apply Mode is set to Multiply.
•
Apply Mode: A pop-up menu that determines how values generated by this behavior are
combined with other behaviors and keyframes that aect the same parameter. This provides
you with dierent ways of using a Wriggle behavior to modify a parameter’s preexisting values.
The options are Add, Subtract, Multiply, or Add and Subtract.
•
Frequency: A slider that sets the amount of random variation per second. Higher values
generate faster variations, whereas lower values generate slower variations.
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