
806 Corel Painter X3 Getting Started Guide
The compression ratio is inversely proportional to image quality. The Quality slider
allows you to set an optimum level between the amount of compression and image
quality. For most work in Corel Painter, it is best to set the Quality slider to High.
You can specify the number of frames you want displayed per second and, with some
compression methods, the frequency of key frames. Key frames are used in temporal
compression methods. Each key frame is stored in its entirety. The next set of frames,
up to the next key, are saved only as changes.
With some compression methods, you can also limit the speed of data transmission with
the Limit Data Rate option. The data rate limit overrides the Quality setting, if
necessary, to keep the compressed movie within the set limit.
To export a Corel Painter movie as a QuickTime movie
1 Choose File Save As.
2 In the Save Movie dialog box, enable the Save Movie As QuickTime option.
3 In the Enter Movie Name dialog box, choose a location, enter a name for the file,
and click Save.
4 In the Compression Settings dialog box, choose a compression method from the
list box.
5 Specify the options you want.
Exporting a movie as an AVI movie
If you are using a Windows operating system, you can export your movie as an AVI
movie.
The AVI format supports several compression schemes. The following descriptions
should help you choose one; however, you’ll probably want to experiment with different
compressors and settings to identify the best settings for your work. You may also have
additional compression methods available.
•The Cinepak method produces acceptable motion and image quality at
remarkably small file sizes. It is the preferred format for CD-ROM delivery and
transfer across the Internet. Cinepak takes a long time to compress, and it can be
difficult to find the best compression settings for certain image types and frame
rates.
•The Microsoft Video 1 method is designed for recording and playing back
digitized video at high rates.
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