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splatcollision

QT Codec question

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Hey Peeps -

 

Working on some composited footage that i've got to hand off to an editor, the green screen footage was capped in uncompressed 10-bit, I want to send it back highest quality, but let the editor decide which clips to put in behind my composites (there's a virtual set with a "screen" behind the actor), so I want to provide an alpha channel as well. Problem is QuickTime's uncompressed 10-bit codec doesn't have an alpha, and any of the usual alpha channel codecs I use have a noticable (by me anyway) drop in quality.

 

I'm doing the key in Final Cut (6.01, studio 2), editor is working in FCP 5. Footage capped with a Kona LSe from a Beta deck.

 

Any suggestions super appreciated!

 

-Kev

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You may have to go with frame sequences - then you could use 16 bit TIFFs. Alternatively you could render the alpha as a separate movie - 8 bit should be fine, then you can use any codec for the footage. Most editors should be able to use a separate alpha (in the early days all alpha channels were separate files)

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Guest Sao_Bento

You could always render the mattes separately, assuming you trust the editor to understand how a track matte works (not necessarily a safe bet).

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