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Alpha Channel
ULTRA can output a 32-bit file containing an alpha channel, so you can choose the background in another program. Set the output type for AVI-Uncompressed or QuickTime-Apple None, and click the button for 32-bit output.
ULTRA is not a live keyer - it has a live preview, but you cannot key and save a feed from a live camera. ULTRA primarily works with saved AVI or QuickTime files. When ULTRA outputs, it does so very fast - a 1 minute file takes 32 seconds on my home system (results vary depending on your video card.)
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Karl Soule'
Product Marketing Manager, Serious Magic Professional Products Group.
ksoule@seriousmagic.com
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