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Simulation behaviors, Examples of using simulation behaviors – Apple Motion 3 User Manual

Page 458

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458

Chapter 5

Using Behaviors

Parameters in the Inspector

Strobe Duration: A slider that sets the number of frames to hold. A value of 1 plays the
clip at normal speed. The default value is 5 frames.

Stutter

This behavior randomly inserts hold frames, of random durations, into the playback of a
clip. The effect is similar to a tape that sticks during play in a videocassette recorder.

HUD Control
The HUD contains the Stutter Amount, Duration Range, and Random Seed parameters.

Parameters in the Inspector

Stutter Amount: A slider that sets the probability that a hold frame is generated at the
given frame. When set to 0%, no hold frames are created; when set to 100%, every
frame is a hold frame. Values in between 0 and 100 indicate the probability of frames
(within the duration of the behavior) that are replaced by hold frames. The default
value is 10%.

Duration Range: A slider that sets the maximum duration of hold frames. A value of 1
inserts single-frame hold frames at a frequency determined by the Stutter Amount
parameter. Increasing the Duration Range increases the range of hold frames. For
example, a value of 30 creates random hold frames with a minimum of 1 frame and a
maximum of 30 frames. The default value is 3 frames.

Random Seed: A button that lets you pick a new random seed number. This number is
used to randomly generate new values, based on the other parameters of this behavior.

Simulation Behaviors

These behaviors perform one of two tasks. Some Simulation behaviors, such as Gravity,
animate the parameters of an object in a way that simulates a real-world phenomenon.
Other Simulation behaviors, such as Attractor and Repel, affect the parameters of one
or more objects surrounding the object to which they’re applied. These behaviors allow
you to create some very sophisticated interactions among multiple objects in your
project with a minimum of adjustments. Like the Basic Motion behaviors, Simulation
behaviors also affect specific object parameters. Examples include Attractor, Gravity,
and Repel.

Examples of Using Simulation Behaviors

To view examples of working with the different Simulation behaviors, see “

Behavior

Examples

” on page 483.