User`s guide

Page 26
Using QuickTime Playback
XCLAIM VRÕs QuickTime playback acceleration allows
you to stretch even the smallest movies to full screen size
without compromising frame rate or image quality.
XCLAIM VRÕs hardware scaler maintains the original
quality of your QuickTime movie when scaling to a larger
sizeÑeven full screen.
XCLAIM VRÕs QuickTime playback acceleration displays
in millions of colors, even if the current color depth
setting is 256 colors or grayscale. When scaling video,
XCLAIM VR uses special hardware techniques (alpha
blending and chroma interpolation) to enhance the video
quality instead of just repeating pixels.
To use XCLAIM VRÕs playback acceleration, you must have
QuickTime version 2.5 or greater installed on your computer. A
compatible version of QuickTime is included on the
XCLAIM VR Extras CD-ROM.
Optimizing Video Playback
When you scale a movie, your system switches from
QuickTimeÕs software scaler to XCLAIM VRÕs hardware
scaler to produce better results. However, QuickTime will
not switch to hardware scaling in the following situations:
¥ playing video in double size
Try manually scaling the video slightly off exactly double
the size.
¥ pausing the video
¥ using single frame advance
¥ watching the video in reverse
¥ playing a video that has not been saved in Cinepak or
Indeo compressed format
QuickTime clips must be in Cinepak (the most common
QuickTime movie format) or Indeo format to be scaled by
XCLAIM VR. To determine if a video will be accelerated
using XCLAIM VRÕs hardware scaler, check the video
format.
NOTE