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Activity Forums Adobe Premiere Pro Keying effects: Screen and Multiply – not working?

  • Keying effects: Screen and Multiply – not working?

    Posted by Joe Sinawa on January 31, 2008 at 9:13 am

    I did a simple 2-layer setup in my timeline and tried using both of these keys and neither seem to be working at all. Anyone else have this issue and if so know of what could be the problem? I’ve tested other keying effects on this same setup and they work fine.

    Joe Sinawa replied 18 years, 3 months ago 3 Members · 8 Replies
  • 8 Replies
  • Tim Kolb

    January 31, 2008 at 12:48 pm

    Screen and Multiply keys have been broken since the “Pro” moniker was added to Premiere.

    (a pet peeve of mine)

    For some reason, having the AJA Xena installed had fixed them for those users…

    Adobe finally got rid of those two keyers altogether in CS3.

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

  • Jon Barrie

    February 1, 2008 at 3:00 am

    It’s called “compound arithmetic”. Set the layer you want to affect (second source) and pick the operator (screen, multliply…etc)
    – Jon 🙂

    How many editors does it take to change a light bulb?

  • Tim Kolb

    February 1, 2008 at 4:13 am

    [Jon Barrie] “It’s called “compound arithmetic”.”

    Huh?

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

  • Jon Barrie

    February 1, 2008 at 5:02 am

    The effect to use for multiply or screen or overlay, etc is called compound arithmetic.
    Follow the effects properties as I suggested in prev post to get the effect working.
    – Jon 🙂

    How many editors does it take to change a light bulb?

  • Tim Kolb

    February 1, 2008 at 1:49 pm

    Hmmm…

    I’m going to assume the poster is working with an older version than CS3 as the screen and multiply stand-alone keyers were still included in earlier versions…

    If that’s the case, was “compound arithmetic” in CS2 or earlier? That’s the first I’ve heard about it….”calculations” has been in there in past versions however, which uses Photoshop-like blend modes.

    You learn something every day.

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

  • Joe Sinawa

    February 2, 2008 at 10:58 pm

    I’m aware of what layer needs to have the effect applied to, I said so in my original post. The other key effects, chromakey, garbage matte, etc, are working. It is specifically screen and multiply that aren’t.

  • Tim Kolb

    February 3, 2008 at 2:15 am

    [Joe Sinawa]
    I’m aware of what layer needs to have the effect applied to, I said so in my original post. The other key effects, chromakey, garbage matte, etc, are working. It is specifically screen and multiply that aren’t.”

    You apparently have a CS2 or older version of PPro…and as I said, those stand alone keyers have always been broken since Premiere went “Pro”. The filter called “Calculations” has a screen and multiply blend mode that works like Photoshop’s layer blend modes…

    That’s about the best option you’ve got I’m afraid.

    TimK,
    Director, Consultant
    Kolb Productions,

    Creative Cow Host,
    Author/Trainer
    http://www.focalpress.com
    http://www.classondemand.net

  • Joe Sinawa

    February 3, 2008 at 3:17 am

    I was just responding to Barrie’s “How many editors does it take?” comment.

    Anyway, actually the “Calculations” filter will work just fine. I didn’t know that existed. I guess it probably renders slower than the keyers would’ve but it’s much better than not having it at all. Thanks!

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