Apple Motion 4 - Manual (Page 491)

Loop
This behavior loops a segment of the clip within the duration of the behavior. The loop’s
starting frame is derived from the start frame of the behavior. For example, if the behavior
is applied at the start of a clip, and Loop Duration is set to 30, the first 30 frames of the
clip loop repeatedly until the end of the behavior. At the end of the behavior, normal
playback resumes from the frame at the end of the loop duration.
Parameters in the Inspector
Loop Duration: A slider that sets the duration of the looped frames. The default value is
30 frames.
HUD Controls
The HUD contains the Loop Duration parameter.
Ping Pong
This behavior “ping-pongs” a segment of the clip within the duration of the behavior.
The ping-pong’s starting frame is derived from the start frame of the behavior. For example,
if the behavior is applied at the start of a clip, and Duration is set to 30, the first 30 frames
of the clip play forward, then play in reverse, then forward, and so on until the end of the
behavior. At the end of the behavior, normal playback resumes.
Parameters in the Inspector
Duration: A slider that sets the duration of the ping-pong frames. The default value is
30 frames.
HUD Controls
The HUD contains the Loop Duration parameter.
Replay
The Replay behavior resets the playhead at the beginning of the behavior to a specific
frame, and then plays the clip normally from that frame. The clip plays back normally
after the end of the behavior. This allows you to trigger playback of the clip at different
times, without requiring multiple copies of the movie object.
Parameters in the Inspector
Start From: A pop-up menu that determines whether the replay starts from an absolute
frame number or an offset from the frame at the start of the behavior.
• Absolute Frame: Sets the replay to start at the frame specified in the Start Time
parameter. For example, if the behavior starts at frame 60 of the clip and Start Frame
is set to 30, when playback reaches frame 60, the clip starts playback over from frame
30.
491 Chapter 9 Using Behaviors