Matrox Electronic Systems Matrox RT.X2 - Manual (Page 169)

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Configuring the Matrox WYSIWYG Control Panel
¦ Note If Adobe Premiere Pro is running, the Project Format and Output
Format will be determined by your Premiere Pro project’s video output
settings.
3 If you selected an output format that has a frame rate of 25 or 50 fps, and
your DVI video monitor is unable to properly display your preview output,
select
Force DVI Output to 60 Hz (Bypass Autodetect) . Otherwise, make
sure this option isn’t selected to allow Matrox RT.X2 to automatically detect
the frequency rates supported by your DVI video monitor and set the DVI
output frequency accordingly.
4 From the Preview Type menu, select one of the following options for the
preview:
$
Video Select this to view your composition or animation.
$
Alpha Channel Select this to view only your composition’s or
animation’s grayscale alpha-key (matte) information.
5 From the Scaling menu, select one of the following options for your preview
output:
$
Scale to fit Select this to scale your output to fit your video monitor. The
aspect ratio of your project format will be preserved.
$ Original Size Select this to output your video without any scaling. If you
are playing back HD clips in an SD project, your output will be centered
on your video monitor.