BLUE SCREEN

[Chance1234]

DIY Bluescreen hints please

Chance


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5YLAC Films

www.itkoa.co.uk

http://www.lookingglass.atfreeweb.co...ghts/index.htm

download the deadlights trailer at

<http://www.lookingglass.atfreeweb.co...s/images/deadl
ights_trailer1.rm>

[Littlerich]

Lighting is a key element here...
The better you can light the Blue / Green screen the better...

Hair: Make sure that it is not all frizzy (You'll have a HELL of a time trying to key it in)...

Mainly, make sure you have good lighhting.

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KEEP FOCUSED!
Little Rich.
http://go.to/littlerich
[email protected]

[Chance1234]

what about the actual screen itself ?

[shirt]

You are talking to the Chroma MASTA!
Hmm... anyways.

Just get a piece of plywood, or anything that is flat and paintable. I recommend the thin particle stuff that they use for set construction. Very cheap. You can also use any lighter blue paint, as contrary to belief. Just make sure you mix it very well, and that it is a straight blue all the way through.

If I get a chance I will flick a few photos of the chroma I built...

Finally, as above lighting is key!

Your lighting should be setup so that there are no hotspots. Two broad lights should be setup to be flooded on the background, both pointing down and on to the board only. The baselight for this is 200 ft-c (I am Canadian!) which I think is 2000 lux.
NOW... the talent MUST be at least 6ft (2 meters) away from the background, this way the lighting for your talent shouldn't interfere with that of your chroma... If you want a diagram I can throw something together...

My final two tips are... no white, green or blue clothing or objects in front of it... you will get tearing... white reflects the blue like crazy. Good luck

[email protected] http://www.satanspig.itgo.com

[EdWood]

Try to get your hands on some real chroma key paint or fabric, the paint you mix yourself may look just the same but the color pigment is not as pure.
By using homemade paint, you could risk having dropouts on your screen.
But most effects software today, is able to fix this. So if you can't afford the real chroma key paint, try making your own.
Let the budget decide!
I order all my paint from www.studiodepot.com.

Klaus
[email protected]

[Littlerich]

Whatever you do, DON'T (I repeat, DON'T) use a creased blue sheet... the difference in shade is a real b**tard to key in... (as I found out last Friday)...

Also, having a presenter wearing a WHITE SHIRT didn't help!!!

My blue shirt looked cool in fromt of it though!

I'll see if I can get a piccie!


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KEEP FOCUSED!
Little Rich.
http://go.to/littlerich
[email protected]

[Jon Taylor]

A friend of mine has a portable blue screen which folds out like a giant 6ft Lastolite. Handy for docco interviews and stuff.

Jon.

[Ralph Snart]

This is on a related subject but how would the chroma function in videowave 3 and a 3D realtime sculpting like AMORPHIA work together?

RALPH

[M.C. Nicholas]

Of course, like everyone else has said, lighting is crucial. You should have an amber gel pointing at an angle from the back of your talent. This will help eliminate spill. As far as the blue screen itself, I use good (chroma key) paint but have cheap primer mixed to match. I have used MDF board (medium density fiber board). If the lumber yard doesn't have it, call a cabinet maker in the area, they'll have a source for it ($15-$20 for a 1/2"x48"x96" sheet). If you or a friend has the skill, nothing beats drywall for price, surface, flexability, etc.

[Ralph Snart]

That makes sense my epic adventure "The attack of the pixel beast....
Am I correct in the presumption that chroma key is almost like removing enlargement distortion in say microsoft paint shop where you sort of remove sections a small amount at a time? or was I doing something wrong?
I do not have that much experience, just one try so I could be conversant. but I can see where creating an aura around your subject would make it easier to clip it out.
What shade is true chroma, and where can you get it?
See I had always thought that as long as the subject and background were of divergent colors it was just a matter of seperating the two through a function.
Click Congressman Smith. Click Farm Animal.
Click the secret service shows up all pissed off.
The VHS camera in camera Panasonic PV 535 from the late 80's touted this feature so I was confused by the VW3 concept.
Ralph