User Guide

Table Of Contents
Animation and Video 379
Exporting Movies as QuickTime Movies
You can export a movie as a QuickTime movie on either the Macintosh or Windows
platform.
QuickTime 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 Animation method works well with areas of continuous tone. If you set the
Quality in the Compression Settings dialog box to Best and make every frame a key
frame, this compressor is lossless. For most Corel Painter animations, this
compressor is a good choice.
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 can take a long time to compress, and it can
be difficult to find the best compression settings for certain image types and frame
rates.
The Graphics method is limited to 256 colors. It compresses the file at a greater
ratio than the Animation compressor, but does not play as quickly.
The None option uses no compression, so the images retain all of their quality.
With a large frame size, some computers might not be fast enough to play at a high
frame rate.
The Photo-JPEG method allows high compression ratios while maintaining
excellent image quality. However, it does not play at high rates. JPEG is an
international standard for image compression.
The Video method is designed for recording and playing back digitized video at
high rates. Because of the spatial compression method it uses, the Video compressor
does not provide optimal results for images with large areas of continuous tone,
such as those in most animations.
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.