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Activity Forums Adobe After Effects Is this possible to do? Alpha Channel related

  • Is this possible to do? Alpha Channel related

    Posted by Christopher Stewart on May 6, 2020 at 1:04 am

    Hi all,

    So I’m wondering if there is some cool effect or plugin that can be applied to a layer that will make it act as hole to the alpha channel punching through everything below it.

    So far my approach has been to make that layer Greenscreen green and then throwing a key to pull it, but that can lead to issues with other elements and such, leading to garbage mattes and other tedious items along with added render times.

    So yeah. Just wondering if there is a magic button somewhere haha.

    Thanks,
    Chris

    Christopher Stewart replied 6 years, 2 months ago 3 Members · 3 Replies
  • 3 Replies
  • Greg Gesch

    May 7, 2020 at 12:39 am

    Hi Chris, I think you need a Track Matte. Lots of tutorials around to check to see if that’s what you want.

  • Walter Soyka

    May 7, 2020 at 11:19 am

    [Christopher Stewart] “So I’m wondering if there is some cool effect or plugin that can be applied to a layer that will make it act as hole to the alpha channel punching through everything below it.”

    Change the layer’s blend mode to “Silhouette Alpha.”

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

  • Christopher Stewart

    May 7, 2020 at 2:18 pm

    Yes! Thank you! Silhouette Alpha was the answer!

    you just made my crazy project 100 times easier to render now! Thanks!

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