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Activity Forums Adobe After Effects Unmult in CS6

  • Unmult in CS6

    Posted by Spencer Tweed on August 20, 2012 at 9:40 pm

    Hey, back in CS4 I used to use Knoll Unmult all of the time in my motion graphics and composites. But in CS5.5 it became obsolete due to the x64 upgrade issue (and understandable lack of support from RedGiant). The fix was to use Alpha From Max Color, but that too has now become unusable since Pixel Bender was (not understandably) dropped from CS6.

    I saw an earlier post where Todd mentioned a way of doing it without 3rd party plug-ins, but when I tried it I wasn’t able to get the same result as unmult (my layer lost saturation).

    Does anyone know how to do this in CS6??

    – Spencer

    Jerry Yan replied 13 years, 4 months ago 4 Members · 7 Replies
  • 7 Replies
  • Tom Daigon

    August 20, 2012 at 10:09 pm

    Spencer, check out this thread…

    https://forums.adobe.com/message/2905481

    Tom Daigon
    PrP / After Effects Editor
    http://www.hdshotsandcuts.com
    https://www.youtube.com/watch?v=XRIg6h-LIm0 (Best viewed at 1080P and full screen)
    HP Z820 Dual 2687
    64GB ram
    Dulce DQg2 16TB raid

  • Kevin Camp

    August 21, 2012 at 8:24 pm

    the old recipe was to add channel combiner (set ‘from’ to max rgb and ‘to’ to alpha) and then add remove color matting.

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

  • Spencer Tweed

    August 21, 2012 at 10:18 pm

    Yeah, that’s what I tried and got weird results… It’s also just messy – I use this effect way too often and don’t like precomps all over the place if I can help it.

    – Spencer

  • Kevin Camp

    August 21, 2012 at 10:24 pm

    yep, unmult is the way to go, every once in a while i find my self on some else’s system and they don’t hove it, and i just make it the old fashioned way.

    those other effects may not both be 16/32-bit, so that may have been the issue… or maybe something else has changed in cs6…

    Kevin Camp
    Senior Designer
    KCPQ, KMYQ & KRCW

  • Spencer Tweed

    August 21, 2012 at 10:24 pm

    Holy crap, check it out! When did that happen? It works perfectly!

    – Spencer

  • Tom Daigon

    August 21, 2012 at 10:33 pm

    Glad to help out, Spencer!

    Tom Daigon
    PrP / After Effects Editor
    http://www.hdshotsandcuts.com
    https://www.youtube.com/watch?v=XRIg6h-LIm0 (Best viewed at 1080P and full screen)
    HP Z820 Dual 2687
    64GB ram
    Dulce DQg2 16TB raid

  • Jerry Yan

    December 10, 2012 at 1:43 pm

    This is more useful than the Unmult,thanks a lot!

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