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Blue screen tutorial (also called keying)

Posted: Sat, 5th Mar 2011, 7:35am

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danielchin96

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Hi guys im new to the community, hope that you could give me some tips about using blue screens for visionlab studio.

Im wondering if there is any tutorials on how to use blue screens for VisionLab Studio. A link or video tutorials would be much appreciated. Thanks in advance.

How do I change the background of a blue screen?

Last edited Sat, 5th Mar 2011, 11:07am; edited 2 times in total.

Posted: Sat, 5th Mar 2011, 7:56am

Post 2 of 14

Helge

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Hi,

fxhome has a number of very nice video tutorials on all the main features of the software. Just go to:

http://fxhome.com/support/lab-tutorials/

and select "Keying" from the "Lab compositing tutorials" section of the list below.

In this tutorial, a green screen is used - but the process isn't any different with blue screen footage.

Hope this helps smile
Posted: Sat, 5th Mar 2011, 8:29am

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danielchin96

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Oh, so its called keying? Thanks alot for the help.
Posted: Sat, 5th Mar 2011, 8:51am

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Helge

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That's right. I guess it might be a good idea to also add that hint ("e.g. green/blue screen") to the tutorial page. Once you know the term, you tend to forget that someone else might not have heard about it smile
Posted: Sat, 5th Mar 2011, 11:08am

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danielchin96

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By the way, how do i add a background to for the blue screen?
Posted: Sat, 5th Mar 2011, 3:51pm

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Helge

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After keying, your video will be transparent where it was blue/green before. If you put your background below the video, it will shine though the transparent parts. This will look something like this:

Posted: Sat, 5th Mar 2011, 4:17pm

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DVStudio

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Hey man, I've got a couple of green and blue screening tutorials here, here and this one.

They talk about physically setting up and lighting a blue/green screen, and also feature various techniques for keying properly.

Hope it helps!
Posted: Sat, 5th Mar 2011, 5:28pm

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danielchin96

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Thanks alot to all who have helped me. Really appreciate it. Good news is my room is painted a dark blue. (Free blue screen right there) bad news is alot of shadows and bad lighting.
Posted: Sat, 5th Mar 2011, 6:44pm

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Axeman

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Keep in mind as well that having the correct shade of blue is critical to getting good results to your Key. I don't know how dark the blue in your room is, but you want it to be as close to pure blue as possible:


This article in the knowledgebase also walks through the entire process of keying footage and adding a background to it.
Posted: Sun, 6th Mar 2011, 9:17am

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danielchin96

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Its more of this kinda blue in the background.
http://www.youtube.com/watch?v=X6wYp_HkOSU
Posted: Mon, 7th Mar 2011, 12:21am

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DVStudio

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With proper lighting, that might be okay.

The lighting in that video was crap though. wink
Posted: Tue, 8th Mar 2011, 9:28am

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Simon K Jones

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You want to stand as far away from the wall as possible, too, so that you're not casting dark shadows onto it.
Posted: Tue, 8th Mar 2011, 6:25pm

Post 13 of 14

danielchin96

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DVStudio wrote:

With proper lighting, that might be okay.

The lighting in that video was crap though. wink
I agree, the only light source came from a ceiling light. So yeah..
Posted: Tue, 8th Mar 2011, 6:26pm

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danielchin96

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Tarn wrote:

You want to stand as far away from the wall as possible, too, so that you're not casting dark shadows onto it.
Got it. Thanks for the advice.