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Thread: After Effects 6.5 Pro Keying question

  1. #1

    Default After Effects 6.5 Pro Keying question

    Folks,

    Does anyone know how to key using greenscreen source footage that has water in it? I'm using After Effects 6.5 Pro and am having problems.

    The water is being poured from a jug into a clear glass bowl. Obviously the green screen is visible through the bowl and water but all of AEs keyers destroy the effect. It just doesn't seem to take into account of the reflections.

    What am I doing wrong?

  2. #2

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    I'm guessing this isn't something that anyone has done then in AE.

  3. #3
    Join Date
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    Keying a transparent object for green screen is hardly the easiest thing to do.

    I can only suggest the following - but I'm just thinking out loud here, this is not from experience of your particular problem ok?

    You can maybe try multiple passes of greenscreen keying of your footage. use different settings to pick each each 'level' of green through the water. Eventually you'll get it. Also, and this might well depend on exactly you want to put behind the water, you could just mask the bowl off and apply some colour correction filters to get what you want.

  4. #4

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    Cheers Alan, when you say multiple passes do you mean include the effect on the layer a few times but keying a slightly different colour?

  5. #5
    Join Date
    Jan 2006
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    Bournemouth, UK
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    Also try colour correcting towards magenta very slightly, this being the opposite to green helps to remove some of the green spill, of course it will only remove a small amount before the colour becomes way off.
    Canon, Edius, Final Cut Studio, Always Progressive, Promotional Video Production

  6. #6
    Join Date
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    Quote Originally Posted by Chris Oakley
    Cheers Alan, when you say multiple passes do you mean include the effect on the layer a few times but keying a slightly different colour?
    That is what i meant, yes. Just thinking out loud though. no promises.

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