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610 Chapter 20: Managing Scenes and Projects
Co mpresso r—Use t he drop-down list to choose the
codec (page 3–921) (compress or/decompressor)
you want to use to compress the file. You can use
any codec that’s installed on your system.
Alternatively, you can render uncompressed
frames and then use an external application to
compress the animation. Video-file compression is
a complex subject, with many aspects to consider.
Compression Quality —Available only for certain
codecs. When available, use the slider to specify
the quality you want. The higher you set the
quality, the larger the file size will be.
Keyframe Rate—Available only for cert ain codecs.
When available, use this setting to specify the
interval between the delta keyframes used to
compare one frame with another and generat e
in-between fr ames. Too large an interval will
create loss of quality in the AVI file as a whole.
Setup—Available only for certain codecs. Click
this button to see any additional options that are
specific to the codec. These are vendor specific
and vary from codec to codec.
BMP Files
BMP files are still-image bitmap files in the
Windows bitmap (.bmp)format.
Interfa ce
WhenBMPischosenastheoutputformat,
clicking Render or Setup on the Render Output File
dialog (page 3–9) displays the BMP Compression
dialog.
8 B it Optimized palette (256 Colors)—Choose to
render a smaller, 8-bit color file.
RGB 24 bit (16.7 Million Colors)—Choose to render
a larger, true color (24-bit) fi le.
CIN (K odak Cineon) Files
Afileformatthatstoresasingleframeofamotion
picture or video data stream. Each frame is
saved as cineon version 4.5 with a CIN file-name
extension. The file contains no user-defined data
such as a thumbnail, and supports 10-bit log, and
three colors per pixel. Alpha channels are not
supported.
Interfa ce
WhenCINischosenastheoutputformat,clicking
Render or Setup on the Render Output File dialog
(page 3–9) displays the Cineon Image File Format
dialog.