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garbage matte
Feeling like a novice…
I shot some great green screen footage…plenty of distance between the subject and the screen, everything looks good (switching to matte view is almost pure black and white). BUT…occasionally some taller subjects came in and I had to raise up to reveal the edges of the rounded pop-up backdrop I was using. No problem right…I’ll just garbage matte the corners and move on. Now I’m my own victim of “I’ll fix it in post.” Ugh.
The corners are small (literally just the extreme upper right and left edge) so I don’t need much, but what’s killing me is the fact that when I feather the garbage matte, even when moving the points well beyond the viewable frame, it reveals the corners. I can’t just slide the matte it up and over a bit?
Pretty sure I could run everything through AE, use keylight and get creative, but I have a lot of footage and I’d prefer to stay in FCP for simple convenience.
For what it’s worth, I’m using dvmatte pro for the key and everything is looking perfect except for these corners. Anyone have some advice?
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6 Replies
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More garbage matte control in Motion.
Steve Eisen
Eisen Video Productions
Vice President
Chicago Final Cut Pro Users Group -
Hi,
first of all, why do you have to feather the matte? You are keying out a greenscreen, just cutting of unnecessary objects. Do you need to feather at all?
2nd I am not very convinced of DVMmatte Pro – if I were you, I would switch to AE and do it with Keylight – it might be more work, but the result is definately worth it. Besides, if you shot pretty much in the same light conditions, you can copy/paste your tweaked keylight filter to the other clips and then run a Batch.Greetz,
Sascha
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Thanks Steve – I’m doing a little color correction in FCP and I just love how Motion doesn’t support the same color space. I’ll have to mess around with the color correction in there. If it works out it’ll sure make it easy to integrate it with the “crawl” I need to have at the bottom of the screen.
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I’d like to feather it so the line where the garbage matte cuts through doesn’t show up – or at least it’s very faint. Maybe It’s just because I know where it is, but it’s a little too obvious to me right now.
Ohhhhh, running a batch – good thinking! It’s school-photo style on the green screen so everyone’s in the exact same light.
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Your first point got me thinking and I went back into the high and low points on the detail matte controls – Voila! Now I have no need to feather. Turns out I didn’t have a perfect black BG.
Thanks!
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Happy to hear. Good luck with the project!
Greetz,
Sascha
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