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  • Adobe After Effects

    Embedded Alpha of 0 with visable RGB channels.

    Posted by Sean Franklin on August 31, 2015 at 5:02 pm

    Hi all,
    I am wondering if I can export a video clip with an Alpha channel of 0, totally black while keeping my RGB values. We found a way to do this in Premiere but the process is too slow. Is there a way to do it right in After Effects? Maybe 2015?

    I would think exporting with an unpremultiplied alpha would work but for some reason it is not.

    Thanks, any help would be greatly appreciated!

    -Tim

    Tim Franklin
    Freelance Visual Effects Artist/ Video Editor
    Media Asset Manager, CBS Sports Network
    http://www.TimSFranklin.com

    Sean Franklin replied 10 years, 8 months ago 2 Members · 2 Replies
  • 2 Replies

  • Walter Soyka

    August 31, 2015 at 5:35 pm

    [Tim Franklin] “I am wondering if I can export a video clip with an Alpha channel of 0, totally black while keeping my RGB values. “

    Sadly not.

    [Tim Franklin] “I would think exporting with an unpremultiplied alpha would work but for some reason it is not.”

    Yes, one would think it should.

    https://www.adobe.com/go/wish

    Walter Soyka
    Designer & Mad Scientist at Keen Live [link]
    Motion Graphics, Widescreen Events, Presentation Design, and Consulting
    @keenlive   |   RenderBreak [blog]   |   Profile [LinkedIn]

  • Sean Franklin

    September 1, 2015 at 2:09 am

    That’s too bad. We are testing out just using an RGB image tomorrow.

    Thanks!
    -Tim

    Tim Franklin
    Freelance Visual Effects Artist/ Video Editor
    Media Asset Manager, CBS Sports Network
    http://www.TimSFranklin.com

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