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Apple Motion 3 User Manual

Page 423

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Chapter 5

Using Behaviors

423

HUD Control
The HUD has a slider that sets the influence amount (Strength), a Direction pop-up
menu that defines whether the object moves toward the null point or away from the
point, and a Speed pop-up menu that allows you to define the object’s velocity.

Parameters in the Inspector

Position: Value fields that allow you to define the X, Y, and Z position of the target
point. The target (null object) is added to the center of the Canvas by default.

Note: The Move behavior and the Adjust Item tool in the Toolbar must be selected to
move the target. Use the Select/Transform tool to move the object.

Strength: A slider defining the speed at which the object moves toward the target.
With a value of 0, the object doesn’t move at all. The higher the value, the faster the
object moves.

Direction: A pop-up menu that sets whether the object moves toward the target point
or away from the point.

Speed: A pop-up menu that defines the object’s velocity from its position in the
Canvas to the position of the target. There are six choices:

 Constant: The object moves at a steady speed from its position toward the target.
 Ease In: The object starts at a slow speed, then reaches and maintains a steady

speed toward the target.

 Ease Out: The object starts at a steady speed, then slows down as it gradually

decelerates to a stop when it reaches the target.

 Ease Both: The object slowly accelerates and then slows down as it gradually

decelerates to a stop when it reaches the target.

 Accelerate: The object moves toward the target with increasing speed.
 Decelerate: The object moves toward the target with decreasing speed.

Note: To move the object more slowly toward its target, extend the duration of the
Move To behavior in the Timeline or mini-Timeline. To move the object faster, shorten
the duration of the behavior.

Point At

When the Point At behavior is applied to an object or group, you can specify a target
point for the affected object to turn toward.

Tip: Use the Point To behavior with the Move To behavior to created animated objects
that not only move toward a point (or each other), but that turn in the direction of the
target.