1 Reply Latest reply on Sep 15, 2010 5:49 PM by Andy Bay

    How to export a video with an alpha channel that can be switched off

    Andy Bay Level 1

      Hi!

       

      I'm stuck with something that I think might have a simple solution:

       

      I need my video to have an alpha channel while still keeping all the RGB information in place too. This is for Syntheyes, which can take the alpha channel for a video and use it as a garbage matte while tracking.

       

      The problem is that if I draw a mask around my video and then export as a PNG (with alpha), the RGB information seems to be gone even when I choose to ignore the alpha channel. I know how to edit the alpha channel in Photoshop while still keeping the RGB elements untouched, but how should I do that in AE?

       

      Any help will be appreciated!