• Adobe After Effects

  Cant mask keyed footage?

  Posted by Rabbo Films on May 10, 2014 at 7:44 am

  Hi all,

  I am trying to key an explosion so that it is behind my character. Before doing this I removed the black background of my explosion by using Shift channels. Without shift channels applied I can mask the layer fine, using subtract or even inverted add mask, but when masking the footage with the shift channels effect, the masking does nothing.

  Is there a way to render my clip as a pre-keyed explosion? or just mask it in the same composition? Thanks

  Joseph W. bourke replied 12 years, 4 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Joseph W. bourke

  May 11, 2014 at 12:35 am

  Knoll Unmult should do the trick for you:

  https://www.redgiant.com/blog/2010/08/17/knoll-unmult-free/

  Joe Bourke
  Owner/Creative Director
  Bourke Media
  http://www.bourkemedia.com

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