• Adobe After Effects

  Same footage 2x, one w/alpha, one w/o

  Posted by Eric Chard on April 15, 2012 at 7:51 pm

  I’d like to layer the same footage on top of itself, but have the top layer use the footage’s alpha channel, while the bottom layer ignores the alpha channel.

  How would one do that?

  THANKS!

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  “Putting the HARM in ‘harmonica’ since 2005.”
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  Walter Soyka replied 14 years, 1 month ago 2 Members · 1 Reply
• 1 Reply

• 

  Walter Soyka

  April 15, 2012 at 8:11 pm

  [Eric Chard] “I’d like to layer the same footage on top of itself, but have the top layer use the footage’s alpha channel, while the bottom layer ignores the alpha channel.”

  On the bottom layer, apply the Set channels effect [link] and set the alpha to full.

  Alternately, import the footage twice and set the alpha interpretation of one version to “Ignore.”

  Walter Soyka
  Principal & Designer at Keen Live
  Motion Graphics, Widescreen Events, Presentation Design, and Consulting
  RenderBreak Blog – What I’m thinking when my workstation’s thinking
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