Chroma-keying

[Niki Mundo]

I'm going to be chroma-keying several outdoor scenes and was wondering if I could just use the sun or a cloudy day whatever. The paint is really bright and as long as I have the actors far enough away I don't see a problem.. I'm shooting colour for the green screening work but the final released version will be in b/w so the colour differance shouldn't matter - right?

Thanks!

[Micah Kovacs]

It should work beautifully. I've seen chroma-keying being done outdoors on both large and small scales and it always seems to turn out great - and no worries about trying to get an even light on the screen.

 

Here?s an example posted by Michael Morlan:

and here?s his page with more pictures

http://michael-morlan.net/pages/production...ourlove_vfx.htm

[Ken Minehan]

yep. Thats right. As long as the screen is evenly lit and stretched out with no crumples fold marks you will be able to key out cleanly. If the sun is very directional you may get spill onto the ground in front of the green/blue screen. That means you may have to clean the shot before keying out.

 

http://www.digitaldomain.com/

 

Check out the above link. This is Digital Domain's reel for matte painting. it has several clips within that has outdoor blue screen lit with natural light. You can still see a lot of spill but was obviously cleaned up before keying out.

 

Hope it helps

Ken MInehan

[Ken Minehan]

As for the Digital Domain link, click on it, then go to reels, then click on matte painting.

 

thanks

Ken

[Gaffer]

Pinewood Studios home of the Bond Movies.

Has a chroma backing used with sunlight approx 70yards by 15yards high ( not too sure check it out via Pinewood studios)