Apple Motion 4 User Manual
Page 400
Behaviors can also be used to animate the parameters of nearly any particle system
emitter, shape, mask, replicator, filter, generator, camera, or light. This allows you to
quickly create animated backgrounds, dynamic filter effects, interesting camera and
lighting effects, and incredibly complex particle systems, all using a few simple controls.
Motion Tracking behaviors serve a different purpose than other behaviors. Rather than
immediately creating animation on the object to which it is applied, a tracking behavior
analyzes an object’s motion, or the motion in a clip. This analyzed motion can be used
to stabilize a shaky clip, match the movement of an object to the movement in the
analyzed clip, track a layer onto a clip (such as a logo or text onto a moving car), and so
on. For more information, see
There are 11 different kinds of behaviors in Motion.
• Audio behaviors are applied to audio files to create simple audio effects, such as fade-ins
and fade-outs, pans, and fly-bys. There is also a separate Audio Parameter behavior
that can be applied to the parameters of nearly any object. For more information, see
.
• Basic Motion behaviors are among the simplest behaviors. They animate specific
parameters of the object to which they are applied. Some Basic Motion behaviors affect
position while others affect scale or rotation. Examples include Fade In/Fade Out, Spin,
and Throw. All of the Basic Motion behaviors can be applied to images and clips, particle
emitters, shapes, text, and so on. Most of the Basic Motion behaviors can be applied
to cameras and lights. For more information, see
• Camera behaviors are specifically designed to be applied to a camera in a 3D project
and create basic camera moves such as dolly moves, panning, and zooming. For more
information, see
• Motion Tracking behaviors perform multiple tasks. While all tracking behaviors analyze
the motion present in a clip, the application of that data varies depending on the
specific behavior. For example, the Stabilize behavior stabilizes movement in a clip that
may have been created by camera shake. The Match Move behavior analyzes the motion
in an object (such as a clip) and applies that motion to another object to integrate it
with the tracking source. For more information, see
.
• A Parameter behavior can be applied to a specific parameter of any object (including
filters and behaviors) and the effect is limited to just that parameter. The same Parameter
behavior can be applied to different parameters, resulting in completely different effects.
For example, you can apply the Oscillate behavior to the opacity of text to make the
letters fade in and out, or you can apply the Oscillate behavior to the rotation of a
shape to make the shape rock back and forth. You can also apply Parameter behaviors
to filter parameters, generator parameters, the parameters of particle systems and
replicators, or even the parameters of other behaviors. Examples include Oscillate,
Randomize, and Reverse. Most Parameter behaviors can be applied to cameras and
lights. For more information, see
.
400
Chapter 9
Using Behaviors