Apple Shake 4 - Manual (Page 88)

88 Chapter 1 An Overview of the Shake User Interface
The Time Bar
The Time Bar, at the bottom of the Shake window, displays the currently defined range
of frames, the playback buttons, and the Info field, which provides a brief description of
each control you move the pointer over.
The Time Bar is a display of the currently defined time range. It neither limits nor
controls the actual parameters that are saved into the script. To set the frame range
that renders via a FileOut or Flipbook operation, go to the Globals tab and enter the
frame range in the timeRange parameter.
Setting a Script’s Frame Range
The number in the field to the left of the bar is the start frame of the Time Bar, and the
number in the field to the right is the end frame. In the above example, frames 1 to 21
are highlighted. This corresponds to an entry in the timeRange parameter of the
globals of 1-21.
Time Bar Navigation Values
The Current Frame field indicates the position of the playhead, which is 49. The
Increment parameter controls how far the playhead advances when you press the Left
Arrow or Right Arrow key.
• The default value of 1 means that every frame is played back.
• A default value of 0.5 enables you to see each field when a video clip is loaded into
the Viewer.
• A value of 2 or higher means that Shake skips frames. At 2, every other frame is
skipped.
When you move the pointer within the Time Bar, the frame number that you’ll jump to
when you click to reposition the playhead is displayed over the pointer.
If you have already set the timeRange parameter in the Globals tab, click Home in the
Time Bar controls to use the timeRange as the Time Bar frame range.
To change the current time and display that frame in the Viewer, do one of the
following:
m Click or drag the playhead to interactively scrub across the current time range.
m To jump to a specific frame, type the frame number into the Current Frame field, and
press Return. As with any value field, you can use the virtual sliders—press Control and
drag the pointer left and right in the value field.