5.5

354Motion User Guide
• Include X, Y, and Z: Buttons that specify the space that Drag affects. For example, when
X and Y are enabled, the object drags in the XY plane; when Y and Z are enabled, the
object drags in the YZ plane.
Drift Attracted To behavior in Motion
The Drift Attracted To behavior is similar to the Attracted To behavior, but by default an
object moves toward the object of attraction and comes to rest, rather than overshooting
the object of attraction and bouncing around.
Adjust this behavior using the controls in the Behaviors Inspector:
• Affect Subobjects: A checkbox, available when this behavior is applied to an object that
contains multiple objects, such as a group, a particle emitter, a replicator, or a text layer.
When this checkbox is selected, all objects enclosed in the parent object are affected
individually. When this checkbox is deselected, all objects enclosed in the parent object
are affected by the behavior together.
• Object: An object well that defines the object of attraction. To set the defined target
object, drag the object from the Layers list to the Object well in the Drift Attracted To
HUD or Inspector. In the Layers list, you can also drag the target object onto the Drift
Attracted To behavior.
• Strength: A slider that sets 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. There are two menu items:
• Linear: Object attraction falls off in proportion to the object’s distance.
• Exponential: The closer an object is within the area of influence, the more strongly it
is attracted, and the faster it moves toward the object of attraction.
• Falloff Rate: A slider that sets 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. When set to Exponential, the attraction
falls off more quickly than when set to Linear.
• Influence: A slider that sets the radius of the circle of influence, in pixels. Objects that
fall within the area of influence move toward the object of attraction. Objects outside
the area of influence remain in place.
• Drag: A slider that reduces the distance attracted objects overshoot the object of
attraction. Lower Drag values result in the object overshooting the object of attraction,
moving past and then careening back around toward the target object again and again.
Higher Drag values result in the object coming to rest sooner.
• Include X, Y, and Z: Buttons that specify the space in which the affected object (or
objects) drifts toward the object to which it is attracted. For example, when X and Y are
enabled, the object drifts in the XY plane; when Y and Z are enabled, the object drifts in
the YZ plane.