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Motion Not Seeing Alpha Channel From FCP Export

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haplessjoe
Motion Not Seeing Alpha Channel From FCP Export
on Jan 20, 2006 at 6:12:47 pm

I have a basic video in Final Cut that uses an alpha channel that I'd like to bring into Motion. I export using Quicktime conversion, Animation codec with "Millions+". I then bring in the clip into motion, but am left with all "alpha" areas filled in with black. I attempted to manually adjust the Media settings in case Motion was improperly "guessing" the alpha channel, however this provided no solution. This is a method I could have sworn I've used successfully in the past, but now I'm getting no results.

I'm able to achieve a similar effect by laying down a green matte under the video in Final Cut and then applying a "Color Key" and "Desaturate" filter combo in Motion, but the jagged edges this produces leaves much to be desired.

Any help is much appreciated. Thanks!


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bogiesan
Re: Motion Not Seeing Alpha Channel From FCP Export
on Jan 20, 2006 at 11:11:54 pm

This is usually caused by FCP's insistence on assuming you don't know what you want.
Umm, sorry, I'll restate that:
FCP is probably exporting the rendered clip, not the original clip. If your working sequence settings are DV, there is no alpha channel.

Try unrendering the clip (control-click> remove attributes) and export it again using Animation.

bogiesan

This is my standard sigfile so do not take it personally: "For crying out loud, read the freakin' manual."


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haplessjoe
Re: Motion Not Seeing Alpha Channel From FCP Export
on Jan 20, 2006 at 11:18:06 pm

This solved it. Thanks!


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