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Motion tracking a keylight mask

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Antonio Vecchi
Motion tracking a keylight mask
on Mar 15, 2011 at 4:57:50 pm

Hello to everyone

I've got a short stop motion animation made on a blue screen, then keylighted. After auto-tracing, i got the mask ready and i wanted to track it (perspective corners) on a moving piece of paper (25fps real time video). Both are rectangles.

I can't figure out how to do the tracking though, is there a way to do it?

Thank you!!!

Ed


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Dave LaRonde
Re: Motion tracking a keylight mask
on Mar 15, 2011 at 5:11:45 pm

Why do you want the mask? You've got the key pulled. If you want a solid color for the key subject, you can use AE's Fill effect.

Then check out using Mocha to track that other piece of paper. It's not the most intuitive piece of software in the world, so you'll want to run the tutorials appropriate for your version here on the COW and the Imagineer Systems web site.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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Antonio Vecchi
Re: Motion tracking a keylight mask
on Mar 15, 2011 at 5:14:51 pm

Ok so should i keep the keylight? The problem is, I need to have the single keylighted object to move and not the whole level with the transparent background.

I'll check out Mocha

Thanks!


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Dave LaRonde
Re: Motion tracking a keylight mask
on Mar 15, 2011 at 5:18:21 pm

You motion track your chroma key subject ONTO the paper by using Mocha. Pretty simple. Except for the "learning Mocha" part, that is...

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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