• Adobe After Effects

  Alpha greenscreen footage with two video clips

  Posted by Jonathan McAllister on October 24, 2022 at 1:21 am

  Hi all,

  I have 3 layers

  1st layer is green screen footage

  2nd layer, I would like to be alpha of the 1st layer

  3rd layer, I would like to be inverted alpha of the 1st layer.

  Basically have the green screen footage reveal one of the other layers under it.

  I feel this is simple but I cannot for the life of me work out what to do.

  Any help would be much appreciated.

  Filip Vandueren replied 3 years, 10 months ago 2 Members · 1 Reply
• 1 Reply

• 

  Filip Vandueren

  October 24, 2022 at 6:51 am

  Key the Greenscreen.

  Use set mattes and invert.

  Or in the latest version of after effects, track mattes with alpha / alpha inverted of your layers can all point to the same green-keyed layer.

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