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Tip: To achieve a nice stutter effect, set Loop Duration to 2.
Parameters in the Inspector
Loop Duration: A slider that sets the duration of the looped frames to be played in
reverse. The default value is 30 frames.
HUD Controls
The HUD contains the Loop Duration parameter.
Scrub
Like the Scrub filter, the Scrub behavior moves a virtual playhead around a clip, allowing
you to change the timing of the clip without moving it in the Timeline. Additionally, the
Scrub behavior allows you to animate the offset parameter using keyframes or Parameter
behaviors, often with interesting results. Try applying the Oscillate behavior to the Frame
offset, with the Offset From parameter set to Current Frame.
Note: You can also apply Parameter behaviors to the Retime Value parameter in the
Timing controls for the clip object. The Timing controls are located in the Properties
Inspector. Time Remap must be set to Variable Speed to access the Retime Value
parameter.
Important: Scrub does not affect clip audio.
Parameters in the Inspector
Frame Offset: Sets the offset of the virtual playhead.
Offset From: Sets the position where the virtual playhead is offset. Values can be selected
from First Frame or Current Frame.
HUD Controls
The HUD contains the Frame Offset and Offset From parameters.
Set Speed
This behavior allows you to change the speed (playback rate) of a clip. The speed specified
in the behavior begins at the behavior’s In point and exists for the duration of the behavior.
The clip continues playing at its default speed after the behavior’s Out point. For example,
if the Set Speed behavior begins at frame 60 and ends at frame 300, the clip plays normally
until frame 59, plays back at the rate specified in the behavior from frame 60 to frame
300, and then resumes its default playback speed at frame 301. You can apply an “ease-in”
or “ease-out” effect to the speed change.
Parameters in the Inspector
Speed: A slider that sets the speed of the clip as a percentage. The default is 100% (the
clip’s normal speed). A Speed setting of 50% plays the clip at half speed.
Note: The Speed parameter can be keyframed to create variable playback rate changes.
450 Chapter 9 Using Behaviors