How to key a green screen separately from motion background

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Level 1

8 points

How to key a green screen separately from motion background

Using FCP7. I have an animated background running throughout the sequence (it's on Video Track 1).

When I place a greeenscreen interview on top of that (on Video Track 3) and a solid color background for the key behind that (on Video Track 2), the solid color background covers up the animation.

How do I key the interview and maintain the animated background?

Please tell me I don't have to build it as separate sequences.

iMac (27-inch, Late 2012), OS X Mountain Lion (10.8.3)

Posted on Mar 19, 2015 6:34 AM

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Answer 1

Meg The Dog

Level 6

13,561 points

Mar 19, 2015 9:44 AM in response to LarrryC

It is not clear from your post what you are trying to do.

Screen shots would help.

If you want the area that is green on track 3 to reveal the animation, why are you putting a solid background on V2?

If the animation has transparency, and is also supposed to be over the the solid color background, then the order for the tracks should be:

V3 - Video with green screen with keyed applied

V2- Animation

V1- Color Background

MtD

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