Intro to Retiming behaviors in Motion

Retiming behaviors modify timing and playback—slowing down, speeding up, looping, and reversing clips, among other effects. Although you can also control basic clip timing in the Properties Inspector, the Retiming behaviors are more flexible, letting you define which portion of the clip is modified by a timing change. Further, any timing changes made to a clip using the Inspector’s Timing controls are respected by the Retiming behaviors. For example, if you change the speed of a clip to 50% in the Properties Inspector and then apply a Retiming behavior, the Retiming behavior uses that half-speed clip as its source. (For more information about Timing controls in the Properties Inspector, see Intro to retiming media in the Motion Timeline.)

There are 11 Retiming behaviors:

• Flash Frame behavior inserts a range of random frames into the playback of a clip.

• Hold Frame behavior freezes the frame at the behavior’s In point.

• Loop behavior replays a segment of a clip.

• Ping Pong behavior replays a segment of a clip backward and then forward.

• Replay behavior triggers playback of a clip segment that begins at a different frame in your project.

• Reverse behavior plays a clip or image sequence backwards.

• Reverse Loop behavior replays a segment of a clip in reverse.

• Scrub behavior moves a virtual playhead around a clip.

• Set Speed behavior changes the playback rate of a clip.

• Strobe behavior simulates the look of a strobe light or lower-frame-rate video.

• Stutter behavior randomly inserts hold frames, of random durations, into the playback of a clip.