Apple Motion 4 - Manual (Page 490)

Parameters in the Inspector
Random Frames: A slider that sets the probability that a frame within the duration of
the behavior is replaced with a random frame. When this value is set to 0, no random
frames are inserted. When set to 100, every frame is random. The default value is 10%.
Frame Range: A slider that defines the range from which the random frames are chosen,
based around the current frame. The default value is 10 frames.
Duration: A slider that sets the duration of the sequence of random frames. The default
value is 1, which means 1 random frame is inserted at a time. When Duration is set to 30,
for example, 30-frame sequences (chosen from the Frame Range) are randomly inserted.
The Duration value overrides the Random Frame count (so that a new random frame
does not interrupt the sequence).
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.
HUD Controls
The HUD contains the Random Frames, Frame Range, Duration, and Random Seed
parameters.
Hold Frame
The Hold Frame behavior holds the frame at the behavior’s In point for the duration of
the behavior. The clip continues playing normally after the behavior’s Out point. For
example, if the Hold Frame behavior begins at frame 60 and ends at frame 300, the clip
plays normally until frame 59, frame 60 is held for 240 frames, and then normal playback
resumes—frame 61 of the clip—at frame 301.
The Hold behavior is always applied at the current frame, rather than at the start of the
object.
Parameters in the Inspector
Offset: A slider that sets the offset for the hold frame. When set to 0 (the default), the
frame at the start of the behavior is the hold frame. When set to 60, however, the frame
at the start of the behavior (the hold frame) is the start frame plus 60 frames. This
parameter is measured in frames.
Tip: Flickering may occur if the Hold Frame behavior is applied to interlaced footage. To
avoid this, ensure that Field Order is properly set in the Inspector. To change field order,
select the footage in the Media tab of the Project pane, show the Media tab in the
Inspector, then choose a field order option from the Field Order pop-up menu.
HUD Controls
The HUD contains the Offset parameter.
490 Chapter 9 Using Behaviors