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desperate red screen help [ANSWER]

Posted: Tue, 3rd Jul 2007, 6:03pm

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Niall Horn

Force: 0 | Joined: 2nd Feb 2007 | Posts: 4

Member

hi im making a star wars film i need red screen alot when i take it out it is never right cos it takes out my actors out i use red co's i have no green or blue.
Posted: Tue, 3rd Jul 2007, 6:06pm

Post 2 of 3

Elliptical Productions

Force: 256 | Joined: 18th Mar 2007 | Posts: 64

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Basically Red isn't good for screening (in my opinion). Human skin contains a red pigment which is extracted by the software. I use a greenscreen - personally i'd say thats the way to go but some people say blue.

Hope I helped!

I just remembered - you could use a garbage matte to take away the red screen. But that would leave you masking the character frame by frame (This will work well on Clab - if you have the time!)
Posted: Wed, 4th Jul 2007, 12:12am

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Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

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SuperUser

As you have discovered, Red is a color which is nearly impossible to key when the foreground subject contains people. Elliptical Productions has basically explained why this is. Red is one of the primary component colors of skin tones; this is why traditionally compositing has been done using blue or green screens. Typically green is the best option for DV footage, as the green channel records more color data that the other two, meaning you can get a cleaner key.