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Exporting alpha channel as a mask
Despite searching the manual I am unsure how or if I can key out the green screened background from some live action video and then export the resulting alpha channel as a mask – either as an AVI file or image sequence (preferably both).I am using Version 6.5 Pro.
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3 Replies
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Switch around the channels using one of the channel effects. So make the R, G, and B all equal alpha.
Or create a white solid. Put the keyed footage one layer above it. Then set the white solid’s track matte to alpha.
Chris Smith
https://www.sugarfilmproduction.com -
Hi Chris, wouldn’t setting the Output Module to render just the Alpha Channel do the trick?
Cheers
RoRK
broadcastGEMs
customizable animated backdrops with Adobe After Effects project files -
haha. I suppose so. See what I get for never really getting to know the render module? The render module and I are 2 ships passing in the night. Did they hide the new color corrector and roto tools in the render module in AE7?
🙂
Chris Smith
https://www.sugarfilmproduction.com
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