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Activity Forums Adobe Premiere Pro Can effects be applied to clip with straight alpha?

  • Can effects be applied to clip with straight alpha?

    Posted by Toke on May 7, 2008 at 2:48 pm

    When I try this I just get white clip.
    I don’t want to use premultiplied alpha because it messes semitransparent areas to black.
    Is there a workaround or should I just forget alpha with pPro?

    Toke replied 17 years, 12 months ago 2 Members · 3 Replies
  • 3 Replies
  • Randy Mcwilson

    May 8, 2008 at 9:43 pm

    Can you give us more info? Your post did not seem complete.

    I use alpha channeled footage in PPro all of the time, no real problems.

    Eternity…don’t miss it for the world.

  • Toke

    May 8, 2008 at 10:28 pm

    Found a solution.
    Problem was that I was using 10-bit RGB codecs (SheerVideo & AJA) and pPro doesn’t seem to like them. Straight alpha with SV’s 10bit4:2:2 seems to be ok…

  • Toke

    May 8, 2008 at 11:28 pm

    Seems to be that pPro (I’m on a Mac) doesn’t either support any 10-bit YCbCr codecs neither…

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