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Green Screen trouble (help me not get fired!)

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mark madsenGreen Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 5:59:26 pm

I shot two actors in front of a green screen. I lit them with 2 lights in front and a kicker in the back. The problem I'm having now is that their shadows intersect behind them making the screen very dark in between them. My computer cannot isolate that dark green enough to pull it out. I cannot reshoot it because the actors are back in LA.
I went through the tutorial on creating core and edge mattes, but still cannot get anything out of it without totally blowing out the picture.

Any help would be MOST helpful. This is 'lose my job' stuff here if I can't figure this out.


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Lisa ConnorRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 6:30:11 pm

I'm not a pro at AE but I will try.. Can you mask out the shadows on both actors and and re-create the shadows?


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Dave LaRondeRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 6:34:16 pm

Animate a garbage mask to eliminate the bad parts of the green screen.

I don't think Aharon Rabinowitz' AE Podcast on super-tight junk mattes here on the COW (search for it) will help in your case, but you never know.

It's h*ll learning the hard way to run tests before you try new effects stuff, ain't it?

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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mark madsenRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 6:45:37 pm

it is in deed. are you saying I should mask out the bad areas and key frame the whole thing to have the mask follow the actors' movements?
if that is what you're saying, you should know that this is about 30 minutes long and they move a lot. if that isn't what you're saying, please help me understand.
Thanks for your help!


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Dave LaRondeRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 6:51:04 pm

[mark madsen] "are you saying I should mask out the bad areas and key frame the whole thing to have the mask follow the actors' movements? "

Yes, I am. Notice I said GARBAGE MATTE: it doesn't have follow the edges of the actors, it needs to follow the movements of the bad green screen section.

[mark madsen] "if that is what you're saying, you should know that this is about 30 minutes long and they move a lot."

Sorry to hear that. But at least you'd stay employed. You could also try using a color key in addition to other keyers to get rid of the bad stuff.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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mark madsenRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 7:14:22 pm

Thank you very much!
I'll give it my best shot


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Olly LawerRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 6:56:43 pm

Hi,

Have you tried using Key Light 1.2 in AE?

Olly Lawer


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mark madsenRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 7:15:28 pm

Is that a plug-in?


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Dave LaRondeRe: Green Screen trouble (help me not get fired!)
by on Apr 1, 2010 at 7:23:43 pm

Not if you've got AE 8 or higher. Go look for it, pal.

Then look for the keylight tutorial here on the COW and on Videocopilot.net.

Dave LaRonde
Sr. Promotion Producer
KCRG-TV (ABC) Cedar Rapids, IA


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