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Examples of using parameter behaviors – Apple Motion 3 User Manual

Page 431

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Chapter 5

Using Behaviors

431

For more information on applying Parameter behaviors, see “

Applying Parameter

Behaviors

” on page 380.

Audio

This behavior allows you to animate nearly any parameter based on properties of an
audio file, such as bass frequency. For example, the Audio parameter behavior can be
applied to the Scale parameter of an object so that it scales up and down based on the
amplitude of the bass, or to the Opacity parameter so that it fades in and out to the
beat. For more information on using the Audio parameter behavior, see “

Audio

Parameter Behavior

” on page 1141.

Average

This behavior smooths the transition from one value to another caused by keyframes
and behaviors that are applied to a parameter. Use the Average behavior to smooth
out animated effects. Averaged motion moves more fluidly, while averaged changes to
parameters such as Opacity and to filter parameters appear to happen more gradually.
Use the Window Size parameter to adjust the amount by which to smooth the affected
parameter.

Tip: The Average behavior can be used to smooth out the sequence of values
generated by a Randomize behavior.

HUD Control
The HUD lets you adjust the Window Size parameter and change the parameter
assignment.

Parameters in the Inspector

Window Size: A slider lets you adjust the amount of smoothing to apply to the
affected parameter by specifying the number of adjacent frames to average together.
Higher values apply more smoothing by averaging a wider range of values, resulting in
more fluid animation. Lower values average a narrower range of values and apply less
smoothing with values that are closer to the original.

Apply To: The Apply To (“Go”) pop-up menu shows the parameter being affected and
can be used to reassign the behavior to another parameter.

Related Behaviors

Negate

,” “

Reverse

Examples of Using Parameter Behaviors

To view examples of working with some of the different Parameter behaviors, see

Behavior Examples

” on page 483.