Apple Motion 2 - Manual (Page 381)

Chapter 5 Using Behaviors 381
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, Drag, and Direction. 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 image well that defines the object to orbit around. To set the defined target
object, drag the object from the Layers tab to the Object well in the Orbit Around
Dashboard or Inspector. In the Layers tab, you can also drag the target object onto the
Orbit Around behavior.
Strength: A slider defining the speed at which the object moves.
Falloff Type: A pop-up menu that determines whether the distance defined by the
Influence parameter falls off linearly or exponentially. The default is Linear.
• 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: This value determines how quickly the force of attraction between objects
affected by this behavior falls off. 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. 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.
This image well defines
the object of attraction.
01112.book Page 381 Sunday, March 13, 2005 10:36 PM