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Activity Forums Adobe After Effects Chroma Key Green (Keylight) HDV footage

  • Chroma Key Green (Keylight) HDV footage

    Posted by April Henderson on February 17, 2008 at 12:23 am

    Hi there, I’m a bit of a newbie studying my HDV footage and Keylight on AFX. I got a green screen and I’ve done some tests using that cineform codec. In my results, however, although my screen mat shows a pretty nice key (pure white in the centre), still when I render the video, I see a lot of “fluctuating and dancing pixels” on my subject! Clearly that is unnacceptable. Do you know how could reduce that? Do you recommend more light on the subject? or standing further from the screen? Or should I be trying to get an “SDI Capture” for better results. I have Sony FX1 camera. Is it even possible to do an SDI capture with this kind of camera?

    PS…I already know that compressed video doesn’t make a good key but am trying to get the best results with what I’ve got.

    Thanks,

    April

    April Henderson replied 18 years, 3 months ago 3 Members · 3 Replies
  • 3 Replies
  • Randy Mcwilson

    February 17, 2008 at 2:14 am

    No problem. There are 2 (fairly) easy solutions.

    Go this other thread and read both posts.

    https://forums.creativecow.net/readpost/2/927963

    Both work like a champ.
    ——————————————–

    Eternity…don’t miss it for the world.

  • Pat Jaeger

    February 17, 2008 at 2:41 am

    Hi, what tools would i use to remove the spill from the bottom layer as you describe?

    Thanks,
    Pat

  • April Henderson

    February 17, 2008 at 3:38 am

    Wow!! That is a brilliant idea!! Excellent.
    But how in more detail to we get rid of that spill with the Reset Keylight layer??

    Thanks a million!!! 🙂

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