• Apple Final Cut Pro

  Key footage with a matte layer in FCP X

  Posted by Dave Jenkins on December 5, 2014 at 1:53 am

  I need to add a background to a stock footage clip.There are two clips, one with a person walking with a white background. The second clip has a black background and the person walking in white.

  How do I combine these to make a key?

  Dajen Productions, Santa Barbara, CA
  Mac Pro 3.5MHz 6-Core Late 2013
  FCP X

  Dave Jenkins replied 11 years, 5 months ago 3 Members · 3 Replies
• 3 Replies

• 

  Bret Williams

  December 5, 2014 at 3:25 am

  Put the matte clip above the other and set its composite mode (bottom of inspector)to stencil luma.

  Now if you want to add something as a background, place it above everything and set its mode to behind. Alternatively you could make a compound out of the first two and then put the background below the compound.
• 

  William Davis

  December 5, 2014 at 4:59 pm

  You can also use the Image Mask effect on your fill layer and drag the matte layer into the image well.

  Cheers,
  Bill

  Bill Davis
  thedavisreview.com
• 

  Dave Jenkins

  December 5, 2014 at 8:22 pm

  Thanks I’ll try both.

  Dajen Productions, Santa Barbara, CA
  Mac Pro 3.5MHz 6-Core Late 2013
  FCP X

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