Live Feed / Recorded Loops

[arfinator]

Hello,

My school is putting up a unique version of the show "Wings of Desire", based off of the movie. My directory wants to have "Two different worlds", one in which angels are sitting on something like scaffolding. These angels are then filmed, live, and projected onto like the top of a building.

He wants this all to be seen, so like there is a large projection screen in the rear of our black box theatre and it wants the live image to be superimposed onto the recorded loop of like a building.

We are a very small school and have a very small budget to do what he wants ($1500 for all aspects of the show).

Does anyone have any ideas on how the superimposition would work? Does anyone know of any products that allow this?

Thank you very much in advance.

Regards,

Hess Smith

[cvanp]

So you want your angels to be in front of a background, but you can't have the background?

If so - you need chroma key, and then live switching software to process the chroma key. Perhaps http://www.varasoftware.com/products/wirecast/

That might not be fast enough, and I know of no hardware chroma key solutions off the top of my head.

Is that sort of what you're looking for?

[SHARYNF]

You would need to rent a video mixer with chroma key ability, the Panasonic MX50 would do the trick and is quite common in rental stock This would allow you to do it live, you need to get a evenly lit background of a typically green or blue background

http://www.studio1productions.com/Ar...KeyEffects.htm

works quite well, takes a bit of practice to get the lighting even, and to get used to how to set it up on the mixer but once you get it is can do what you want to do

Sharyn

[arfinator]

Oh. Thank you very much. I will look into this.

Do you know how much these are to rent on average?

Thank you.

Regards,
Hess Smith

[museav]

I took it that you wanted to have a scene presented live while at the same time those same actors are also superimposed on a projected background. Same actors and movements in two different settings, one live and one virtual. The problem with a basic chromakey for that might be that you would have to have a good chromakey background for the live setting, which might not be practical if that 'set' is also part of the play.

[kwotipka]

Originally Posted by arfinator

Hello,
My directory wants to have "Two different worlds", one in which angels are sitting on something like scaffolding. These angels are then filmed, live, and projected onto like the top of a building.

Hum,

An interesting situation. You are going to need some room for the chromakey set. Depending on your available space, can you come up with some senic behind them (ie, paint a flat or canvas with the scene you want) and then just project the whole image onto the screen? Will the background need to change? It may seem like a bit more work but if you are projecting the whole thing anyhow and don't really have a budget, it may be worth looking into. It is also a whole lot technically easier to do.

kw

[arfinator]

He keeps changing his mind a lot, so now, I believe he has made it easier on me. He wants the entire set white (which, i am guessing will be a logistics nightmare) and then we are going to use Arkaos software and use the white background as the chroma key and then project the angels onto various locations.

Does that all sound feasible?

On a side note, if I focus gelled lekos and gobos at a large piece of butcher paper that is attached to the grid and to the wall, will it create an interesting effect? I want it to symbolize the lighting of a rock concert and if I used a chase sequence, i think that it might work, without the need of renting actual rock concert lighting.

Thank you very much for your help.

Hess Smith

[museav]

I'd stay away from white. Even if you could get it to work, look at what happens when the meteorologist wears a blue or green tie when using blue or green screen, you get the video showing up wherever that color is. Now think of video appearing on anything white in the image such as teeth, eyeballs, etc. Probably not the effect wanted. The key color should be something not found in the live image.

[arfinator]

Ooo. OK. I should talk to him about that. I don't think that that would be the effect he wants.

Thank you so much for mentioning that, we would have ended up noticing it tech week and then stuck with nothing to do.

[SHARYNF]

THe MX50's should rent for under 150 dollars,
What you want to do if you are concerned about the background, is use a BLACK background, light the set and then use LUMA key for the key, thus instead of color it is using light and dark. Can use a white background http://www.videomaker.com/article/9021/



Sharyn