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Why no alpha on mov when it does have alpha?

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Kent Beeson
Why no alpha on mov when it does have alpha?
on Apr 13, 2010 at 3:16:08 am

Hi

Doing an SD timeline...seq is Uncompressed 720x480, got a couple of motion text files I want to overlay on my video. So made a QT mov of the motion files, Pro Res 4444 ,alpha, SD. Brought them into timeline, but they won't key, as if there's no alpha channel. But on export I make sure there is. However, in FCP browser when I right click on the mov file for item properties, format and alpha it shows as "none/ignore." Is this why it won't key, What to do?

Thanks

K
http://www.effectivevideo.net


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Kent Beeson
Re: Why no alpha on mov when it does have alpha?
on Apr 13, 2010 at 4:27:18 am

Was told correctly by Tom W to turn on the Alpha in FCP by right clicking in the item properties tab and changing from none to straight or black or white, whichever I need and it works now...


Thanks

K
http://www.effectivevideo.net


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Bret Williams
Re: Why no alpha on mov when it does have alpha?
on Apr 13, 2010 at 4:27:46 am

Click on that and choose straight or premultiply. Whichever you used.


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Jim McNally
Re: Why no alpha on mov when it does have alpha?
on Apr 13, 2010 at 4:30:41 am

In motion do you have a background that you are exporting with the text? Make sure you have checkerboard under your text when exporting.

Jim McNally
The Commercial Factory
http://www.commercialfactory.com


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Kent Beeson
Re: Why no alpha on mov when it does have alpha?
on Apr 13, 2010 at 4:32:07 am

Yes, it has transparent BG...thanks for all replies, it's fixed as per my second post above...


Thanks

K
http://www.effectivevideo.net


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