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Activity Forums Apple Motion Motion Not Seeing Alpha Channel From FCP Export

  • Motion Not Seeing Alpha Channel From FCP Export

    Posted by Haplessjoe on January 20, 2006 at 6:12 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!

    Haplessjoe replied 20 years, 6 months ago 2 Members · 2 Replies
  • 2 Replies
  • David Bogie

    January 20, 2006 at 11:11 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.”

  • Haplessjoe

    January 20, 2006 at 11:18 pm

    This solved it. Thanks!

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