Apple Motion 2 - Manual (Page 372)

372 Chapter 5 Using Behaviors
You can apply two or more Attracted To behaviors to a single object, each with a
different object of attraction, to create tug-of-war situations where the object bounces
among all the objects it’s attracted to.
Dashboard control
The Dashboard has an object well you can use to assign an object of attraction, as well
as controls for Strength, Falloff Type, Falloff Rate, Influence, and Drag. When applied to
a layer or group (such as particles, text, or the replicator), the Affect Objects checkbox
also appears in the Dashboard.
Parameters in the Inspector
Affect Objects: This parameter appears when this behavior is applied to an object that
contains multiple objects, such as a layer, particle emitter, replicator, or text object.
When this checkbox is turned on, all objects within the parent object are affected
individually. When this checkbox is turned off, all objects within the layer are affected
by the behavior together, as if they were a single object.
Object: An object well that defines the object of attraction. To set the defined target
object, drag the object from the Layers tab to the object well in the Attracted To
Dashboard or Inspector. In the Layers tab, you can also drag the target object onto the
Attracted To behavior.
Strength: A slider defining the speed at which the object moves toward the object of
attraction. With a value of 0, the object doesn’t move at all. The higher the value, the
faster the object moves.
Falloff Type: A pop-up menu that determines whether the distance defined by the
Influence parameter falls off linearly or exponentially.
• Linear: Object attraction falls off in proportion to the object’s distance.
• Exponential: The closer an object is within the area of influence, the stronger it’s
attracted, and the faster it moves toward the object of attraction.
Falloff Rate: When Falloff Type is set to Exponential, object attraction falls off with
distance. When Falloff Type is set to Linear (default), the attraction falls off uniformly.
This value determines how quickly the force of attraction between objects affected by
this behavior falls off. A low Falloff Rate value results in objects quickly getting up to
speed as they move toward the object of attraction. A high Falloff Rate causes objects
to accelerate much more slowly.
Affects Parameters affected
Other objects Position
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