Exporting Footage Using Quicktime Components; Exporting Using Quicktime; Video For Windows Compression Options - Adobe AFTER EFFECTS 7.0 Manual

•
For Microsoft Video 1, choose a level for the temporal compression quality of the movie. Temporal compression
compresses a movie by comparing successive frames and keeping only changed data. High temporal quality
maintains smoothness of motion. Lower temporal quality tends to produce jerkiness of motion because a pixel
doesn't change unless the difference between frames is great.
If you want the smallest possible files, and your compressor choice allows for a key frame rate, select the Key
7
Frame Every option and type a number of frames. Generally, you should type a number equal to the frame rate. For
example, if you set a frame rate of 30 fps, type 30 in the Key Frame box. This sets one keyframe every 30 frames of
your movie.
Note: If you are going to use the resulting movie in another After Effects composition, type a small value (less than 5) in
the Key Frame Every field or deselect the Key Frame Every option. The presence of keyframes greatly increases the
memory required to edit and render a movie.
Click OK.
8
9 If your compressor choice supports different image color depths, choose the appropriate color depth in the Output
Module Settings dialog box.
Choose other options in the Output Module Settings dialog box. (See "To change output module settings" on
10
page 607.) Then click OK.

Video for Windows compression options

Use for lossless compression limited to 256 colors.
Microsoft RLE
Use for digital video camcorders.
Microsoft DV
Intel Indeo/Microsoft Video
Use for a depth setting of Millions of Colors+ when an alpha channel is required.
No Compression
Use when compressing 16-bit and 24-bit video for playback from CD or for desktop presentations. For best
Cinepak
results, use the Cinepak compressor on raw source data that has not been previously compressed with a highly lossy
compressor. Note that this is a slow compression method. With Cinepak, decompression is much faster than
compression, and the data rate for playback can be defined by the user. However, you cannot save an alpha channel
using the Cinepak compressor.

Exporting footage using QuickTime components

Exporting using QuickTime

If you have QuickTime 6.0 or later installed on your system, you can export footage using components provided by
QuickTime. This rendering process exports footage directly without using the Render Queue panel in After Effects.
Compositions are exported using the Composition panel's current quality and resolution settings, and only the work
area indicated in the time ruler is exported.
Note: You can also render to QuickTime by using the Render Queue panel. However, some QuickTime options, such as
Fast Start and Hinted Streaming, are available only through the QuickTime exporter.
The specific file formats you can export to depend on how you've configured QuickTime. If you install new export
modules as they become available from Apple or other third parties, those modules appear in the File > Export
submenu in After Effects. With this QuickTime support, you can export AVI files on both platforms or prepare
streaming video and audio for web distribution. If you want to apply QuickTime effects, you can do so during export.
Use when compressing video for playback from CD.
ADOBE AFTER EFFECTS 7.0 622
User Guide