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Moving Matte import – why not?
Guys, I’ve been given a moving matte (the usual, avid-style one, white=transparent black= not transparent etc) and i’m trying to lay it over a peice of video in much the same way as I would in Avid. With still lunimance-based mattes I’ve never had a problem but this moving one seems to just be ignored by FCP – it’ll only ever use the first frame of the clip no matter what effect I try to use on it. My original assumption would be to use Image Mask and just drag the moving matte onto the source box, and indeed my manual suggested this would work (it said I could use any still image or quicktime movie, which to me suggests that a movie would be recognised AS a movie, and therefore import all frames).
I’m rambling now but i’m sure you get the general idea – that’s my problem. Am I going about this the wrong way? Maybe FCP doesn’t like making alpha from moving mattes? Any advice gratefully recieved.
– Tarka the Otter
London, UK
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3 Replies
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wrong method.
lay the moving matte as a clip in the timeline, on the video track immediately above the background clip,
now lay the foreground clip on the video track above, so that the matte is sandwiched by the foreground and background clips
now right-click the foreground clip (the uppermost one) and choose Composite Mode > Travel Matte – Luma -
Damn it! I’m an idiot. Thanks.
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Hey, I wouldn’t call you an idiot. For an otter, you have a very strong command of human language!
<:P debe
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