Apple Shake 4 User Manual
Page 95
Chapter 2
Setting a Script’s Global Parameters
95
If the format you need is not in this list, you can always open up the format parameter
subtree—by clicking the “+” (plus) icon to the left of the parameter name—and create
your own custom format.
These settings are only for Shake-generated image nodes—they have no effect on the
resolution or frame rate of media referenced by FileIn nodes. Shake generated nodes,
such as RotoShape, QuickPaint, Ramp, and Grad inherit the global resolution.
Click the “+” (plus) icon to reveal the format parameter subtree, which contains the
following subparameters:
framesPerSecond
This parameter limits the speed of playback from the Time Bar, and also sets the default
playback rate of launched Flipbooks. Three buttons provide the three most common
frame rates, Film at 24 fps, NTSC video at 29.97 fps, and PAL video at 25 fps. A value
field allows you to enter a custom frame rate to accommodate any other format.
Note: To change the playback rate within the Flipbook, press + and – (on the numeric
keypad). The current frame rate is displayed at the top of the Flipbook.
timecodeMode
Sets how timecode is calculated within your script, as 24 fps, 25 fps, 30 fps drop frame,
or 30 fps non-drop frame. This parameter is unrelated to timecode that might be
present in a QuickTime movie.
Note: Shake does not import timecode associated with QuickTime movies.
defaultWidth, defaultHeight
The width and height of the frame for Shake-generated images. See the above table for
standard frame sizes.
defaultAspect
The pixel aspect ratio used for Shake-generated images. This should be set to match
the format of the images you’re reading into your script. For example, since most
standard-definition video formats have nonsquare pixels, the aspect ratio of NTSC
video is 1.111, while that of PAL video is .9380. Academy ratio film, which has square
pixels, is simply 1. For more information on pixel aspect ratios, see “
PAL (D1 4:3)
720
576
.9380
1.066
25
PAL (16:9)
720
576
.7032
1.422
25
PAL (square)
768
576
1
1
25
Name
default
Width
default
Height
default
Aspect
default
ViewerAspect
framesPerSecond