Apple Motion 2 - Manual (Page 319)

Chapter 5 Using Behaviors 319
For an introduction to how to use behaviors, see “ Applying and Removing Behaviors ”
on page 321. For more detailed information on how to manipulate behaviors in a
project, see “
Working With Behaviors ” on page 331. For detailed information on all the
behaviors available in Motion, see “ Behavior Descriptions ” on page 344.
Behaviors vs. Keyframes
It’s important to understand that behaviors do not add keyframes to the objects or
parameters to which they’re applied. Instead, behaviors automatically generate a
range of values which are then applied to an object’s parameters, animating it over
the duration of that behavior. Changing the parameters of a behavior alters the range
of values that behavior generates.
Keyframes, on the other hand, apply specific values directly to a parameter. When you
create two or more keyframes with different values in a parameter in the Keyframe
Editor, you animate that parameter from the first keyframed value to the last.
By design, behaviors are most useful for creating generalized, ongoing motion effects.
They’re also extremely useful for creating animated effects that might be too complex
or time-consuming to keyframe manually. Keyframing, in turn, may be more useful for
creating specific animated effects where the parameter you’re adjusting is required to
hit a specific value at a specific time.
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