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Green Screen ---

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Nicholastoth
Green Screen ---
on May 11, 2005 at 9:07:17 pm

Hey guys whats shakin

So i'm painting a studio green tommrow. I know it has to be flat and bright green --- but do you guys have any color information?
as in a pantone color, or a rgb color?

THANKS!



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Dave LaRonde
Re: Green Screen ---
on May 12, 2005 at 3:19:09 pm

Rosco -- a maker of products for TV, film and theater -- makes paint specifically for chroma keying. It comes in either blue or green. It's expensive, but the stuff WORKS.

It's all a matter of when you pay for chroma keying: you can pay now for good chroma key paint Or you can improvise by using paint that's kind of close, and spend hours trying to pull a good key... so you'd pay on the other end.


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Mark Suszko
Re: Green Screen ---
on May 12, 2005 at 5:10:16 pm

Don't expect any of the paint, cheap copy or expensive original, to work right unless you first lay down a good flat white primer. It will make or break the resulting chromakey color and texture.


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Pixel Monkey
Re: Green Screen ---
on May 13, 2005 at 1:36:02 pm

Remember that the whole purpose of a chroma key is to be able to select that color and only that color. Mark's right on the white primer. Also, make sure there is as little texture as possible. Also, no gloss! Reflections, no matter how dull, are translated by edit systems as a different color than what you pick.

Also, the biggest problem with chroma keys is having the subject too close to the color (thus it reflects onto their clothing, etc - like a weatherman). Build depth into your shot.

______
/-o-o-
`(=)`/...Pixel Monkey
`(___)



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Nicholastoth
Re: Green Screen ---
on May 13, 2005 at 5:52:49 pm

i hear the rule of thumb for distance is 8 ft...i guess i'll see. I'll post some .mov's when we get it up and running with the camera system.

i phoned some company in california (i'm in philly) and asked them, they said that there is some brand ( i didn't write it down ) that has accompanying software for batching out of photoshop, or keying in ae, which is and is supposed to look AMAZING, but the company i'm with is frugal. i think it was 45 bucks a gallon for this stuff, but we went with REPTAR GREEN. hhahahahah

i really appreciate all of your help.


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Charlie King
Re: Green Screen ---
on May 13, 2005 at 8:43:31 pm

[Pixel Monkey] "Also, the biggest problem with chroma keys is having the subject too close to the color (thus it reflects onto their clothing, etc - like a weatherman). Build depth into your shot."

When depth is not an option, use a backlight most opposite the key color thus with green screen a light blue backlight will help counter the green contamination. Amber works well with blue screen.

Charlie


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Pixel Monkey
Re: Green Screen ---
on May 13, 2005 at 8:56:43 pm

[Charlie King] "When depth is not an option, use a backlight most opposite the key color thus with green screen a light blue backlight will help counter the green contamination. Amber works well with blue screen. "

Man, that's a damn cool idea. One of those "sheesh, yeah, duh?" moments. Good one, CK.

______
/-o-o-
`(=)`/...Pixel Monkey
`(___)



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Mark Suszko
Re: Green Screen ---
on May 14, 2005 at 3:16:38 am

Actually, i believe if you examine a color wheel, what you want to use to kill spill for gelling the backlight on green screen is magenta, not blue. Blue is right next to green, contaminates the key.

On greenscreen, it's a "magenta" gel, on blue screen, "bastard amber" gel.

as you were... ';-)


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Charlie King
Re: Green Screen ---
on May 16, 2005 at 4:51:02 pm

[Mark Suszko] "Actually, i believe if you examine a color wheel, what you want to use to kill spill for gelling the backlight on green screen is magenta, not blue"

Yep, I thought about that after I went to bed, and visualized a vectorscope in my head. I intended to correct the statement but you beat me to it, thank you for noticing.

Charlie



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Mark Suszko
Re: Green Screen ---
on May 16, 2005 at 5:30:49 pm

See, here's why Charlie is more successful in the business than me and is a moderator here: where I try to visualize Heather Graham in my sleep, he's visualizing vectorscopes.

ONE of us has screwed-up priorities;-)



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Charlie King
Re: Green Screen ---
on May 16, 2005 at 5:53:23 pm

Actually, I visualize many female stars, and the vectorscope traces showing the colors they are wearing.

Charlie


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John Baumchen
Re: Green Screen ---
on May 18, 2005 at 6:01:52 pm

Does anyone have the RGB and CMYK values for Green & Blue screens? If you do, would you mind sharing them here? THanks.


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stu denbigh
Re: Green Screen ---
on Jun 14, 2005 at 10:43:44 am

PANTONE 354 for green, I read somewhere...

s
t
u


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