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Alpha Layer/Rendering Issue?

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Muzafar Malik
Alpha Layer/Rendering Issue?
on Sep 8, 2011 at 5:07:38 pm

I have an issue with a clip with an alpha layer. Its a transition clip that swipes the screen. Really basic. The problem is that it plays fine just previewing it but when I render the clip out, I end up getting duplicate frames.

Frame 1 - Frame 1 - Frame 2 - Frame 2 - Frame 3 - Frame 4 - Frame 4 - Frame 5 - Frame 5 - Frame 6 - Frame 7 - Frame 7 etc etc.

My timeline is Alpha Pro Res 422, 1280x720, 23.98. The clip with the alpha layer is Apple Pro Res 4444. I've also tried Animation but I immediately get the duplicate frames when I put it in the timeline.

The transition is created in After Effects (CS4) and brought over to FCP (V7). Any help is appreciated

Muzafar Malik
Producer / Editor
Wolfson Bell
muzafar@wolfsonbell.com
416.345.8659 x29


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Dave LaRonde
Re: Alpha Layer/Rendering Issue?
on Sep 8, 2011 at 6:26:41 pm

What's the frame rate of the alpha channeled transition layer?

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


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Muzafar Malik
Re: Alpha Layer/Rendering Issue?
on Sep 8, 2011 at 7:41:40 pm

The Alpha clip is also 23.98

Muzafar Malik
Editor


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Michael Gissing
Re: Alpha Layer/Rendering Issue?
on Sep 8, 2011 at 11:00:31 pm

After Effects is very specific about frame rate. The correct rate is actually 23.976 not 23.98 which is lazy shorthand used by Final Cut. Try re rendering the AE file at 23.976.


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