Apple Motion 4 - Manual (Page 522)

Additional Behaviors
Audio, Camera, Motion Tracking, Particles, Replicator, Shape, and Text behaviors are
designed specifically to be applied to their respective objects: Audio files, cameras, particle
emitters or cells, replicators or replicator cells, shapes, and text.
• For more information about Audio behaviors, see Audio Behaviors .
• For more information about Camera behaviors, see Camera Behaviors .
• For more information about Particles behaviors, see Using Particles Behaviors .
• For more information about Replicator behaviors, see Using the Sequence Replicator
Behavior .
• For more information about Shape behaviors, see Shape Behaviors .
• For more information about Text behaviors, see Text Animation and Text Sequence
Behaviors .
• For more information about the Motion Tracking behaviors, including the Track
Parameter behavior, see Motion Tracking Behaviors .
Behavior Examples
The following examples illustrate different ways that groups of behaviors can be combined
to create different effects. The first three examples use content available in Motion, so, if
you want, you can follow along.
Example 1: Using the Gravity and Edge Collision Simulation Behaviors
Gravity makes an object fall over time at a rate specified in the Acceleration parameter.
Unless other behaviors such as Edge Collision are also applied, the object falls off of the
bottom of the Canvas (or moves beyond the top edge of the Canvas if a negative
Acceleration value is used). In this example, a group comprised of three layers (star shapes)
is used to illustrate the Gravity and Edge Collision behaviors.
Note: Although you can apply the Simulation behaviors to single objects, their strength
is in using groups of objects. Some Simulation behaviors, such as Vortex, require the
existence of another object in a project to have any effect. For example, an object with
an applied Vortex behavior needs another object to circle around it; an object with an
applied Orbit Around behavior needs an object to orbit around.
In this case, Gravity is applied to a group that contains three layers (semi-transparent,
colored stars).
To use the Gravity behavior
1 Drag the “5-sided star” shape from the Library (in the Shapes category) to the Layers tab
or Canvas.
2 Press Command-D two times to create two copies of the star.
522 Chapter 9 Using Behaviors