Hi Robin,

If you go to "Effects Controls", move the threshold and cutoff sliders to get 
rid of the dark background of the green screen.  They don't have to be the same 
size.  You just have to completely key out the green.  The threshold and cutoff 
sliders let you do that.

Jean

  ----- Original Message ----- 
  From: robinleeedwards 
  To: [email protected] 
  Sent: Sunday, September 09, 2007 11:44 AM
  Subject: [AP] Green Screen/Compositing


  Hi: My question is this, 

  Do both of the videos to be composited have to be the same size?

  I thought that a green screen would eliminate the background and allow
  me to place only the figures over whatever background track I wanted
  but I still get a darkening of the whole area of the (top) green
  screen track.

  Specifically: I'd like to scale the top track down by 25% and then
  overlay a background scene, but then I get a darker square over 1/4 of
  the screen where the green screen was. Even if the green screen
  characters look great.

  Probably this is a "Blending" issue, but how can I over come it in
  Premier (pro 1.5 and 3)??

  Thanks,

  Robin Edwards
  San Francisco



   


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