Apple Shake 4 User Manual
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Chapter 3
Adding Media, Retiming, and Remastering
increment
This parameter controls how frames in the referenced image sequence are advanced,
providing an unsophisticated method for retiming the clip by either skipping or
multiplying frames being read in from an image sequence.
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The default value of 1 means that every frame plays back, and the clip’s duration in
the script is identical to its duration on disk.
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A value of 2 or higher means that frames are skipped. At 2, every other frame is
skipped, and the clip duration is halved.
Note: QuickTime clips do not display this parameter.
autoAlpha
If this parameter is on (1), then Shake creates a solid alpha channel for images not
containing an alpha channel. If the image already has an alpha channel, this parameter
is ignored.
deInterlacing
This parameter is to be used when importing interlaced images that you intend to
render with fieldRendering on. When deInterlacing is on, Shake takes the odd or even
field of the image (counted from the top) and copies it over the other remaining field.
It then does the same thing half a frame forward. You are therefore left with two
images the same height as your input image, but squeezed into the same time frame.
For more information, see Chapter 5, “
Compatible File Formats and Image Resolutions
force8Bit
This parameter appears for FileIn nodes reading in QuickTime media. When force8Bit is
turned on, 10- and 16-bit media is downsampled to 8-bits per channel.
Paths
Both FileIn and SFileIn recognize local, absolute, variables, or URL paths:
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Absolute Path: /usr/people/myDirectory/myimage.iff
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Local Path: . ./myimage.iff
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Environment Variables: $myimages/myimage.iff
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URL Address: //wherever/usr/people/myDirectory/myimage.iff
Note: For more information on variables, see “
Environment Variables for Shake
Missing Frames in an Image Sequence
If one or more frames from an image sequence is missing, Shake handles this in one of
two ways, depending on the file name format specified in the imageName parameter
of the FileIn node.