green screen shadows : how do I create them

#1

http://boingboing.net/2011/08/30/100-years-of-east-london-style-in-100-seconds.html

looking at some of the shots in this video make me think it’s greenscreen compositing. What I’m marveling over is the quality of the shadows. Any clues how that might be done?
or do you think it was all live action.

#2

Usually someone builds a shadowcatching geometry,
it’s a 3d plane or object that receives shadows from the
3d card or plane with the actors but in some parts of
this video it looks like they generated 2d shadows
warping the shape of the actors. All the scenes are
static so it’s easy.

#3

I think it could be a mixture of both green screen and live action, some bits definitely look green screened. Where as other bits do look like they been shot outside or on a set of some sorts. I have a theory about getting the shadows if using a green screen but weather it’s workable or not i don’t know, I’m only amateur when it comes to green screens.

#4

thanks for the input. upon closer examination I’d have to agree, there were a couple

where the backgrounds seemed a smaller scale than they might actually be in reality.

I like the suggestion to key shadows, though I dont have much experiance with that. I use keylight predominantly, and it’ll usually take shadows right with it. I do suppose I could specifically to get strong shadows too.

#5

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