5.5

298Motion User Guide
Behaviors and keyframes in the Keyframe Editor in Motion
When you keyframe a parameter that’s already affected by a behavior, the keyframes add to
or subtract from the effect of the behavior. This effect is shown in the Keyframe Editor, which
displays two curves for each parameter modified by both a behavior and one or more keyframes:
• A bold, editable curve displaying the effect of keyframes on the parameter
• A lighter, noneditable curve displaying the combined effect of the behavior and
keyframes on the parameter at each frame
Dragging a keyframe on the bold curve also modifies the lighter curve, because the
keyframe is modifying the values generated by the behavior.
Important: The value displayed in the Inspector for the affected parameter reflects
the combined result of keyframes and behaviors applied to that parameter. Editing a
parameter’s values in the Inspector only results in changes made to the underlying
parameter value, whether keyframed or not. This parameter value is then combined with
the behavior’s effect, yielding a final value that might differ from the value you entered.
When you combine keyframes with multiple behaviors, the results can appear to be
unpredictable, depending on the combination of behaviors applied.
Keyframing parameters in behaviors in Motion
You can also apply keyframes to specific parameters of behaviors in your project. Doing
so gives you more control when animating a behavior’s parameters. For example, you can
keyframe the Speed parameter of the Oscillate parameter behavior to increase the rate of
oscillation over time, creating a more complex animation path.
For more information about keyframing the parameters of behaviors, see Apply keyframes
to behaviors in Motion.