HILLSONG CHURCH TRIPLE SCREEN

[tnyturner]

Running three screens is pretty easy in the analog world. When you move into the digital world and want higher resolutions, it starts to get complicated. We ran ProPresenter with an Edirol V4 switcher. The other source was a video camera. We would keep the ProPresenter image on the center screen and fade the two outside screens between the Propresenter image and video camera depending on which part of the service we were doing. We could also switch the center image if needed. ProPresenter also allows you to run a separate stage display. We did this straight from the Mac using VGA. Pretty high tech on a low budget. We moved to a bigger facility and switched to digital for better resolution. We have had all sorts of problems with HDMI and will have to spend some money to duplicate what we were doing in the analog world. Also, ProPresenter's website has solutions to stretch the image across all three screens using a Matrox card. Hope this helps.

[ruikuanli]

Originally Posted by zactommo

For the benifit of this thread, here is a photo of what the OP is trying to do.



Thanks for the explaination; To do something like this, I'm thinking your going to need two computers, plus a matrix switcher, and a video switcher for your live video.

The layout is something like this. One computer with pro video play feeds into a Triplehead2go, which give you your ultra wide, across all screens playback.

Second computer, with dual head to go; one feed with lyrics and black background feeds into live switcher (or decklink card and alpha key module) then the second output is graphics, which feeds the middle screen via the matrix switcher.

Obviously live switcher is for switching your cameras, and overlaying your lyrics onto the outer screens. All inputs go to matrix switcher.

There could be an easier way to this; thatwas just my quick intial thought.

Hi, this photo caught my attention, Im just wondering what kind of screen did they used in this concert? a rear screen projector or a LCD ?

[Brad Weber]

Originally Posted by ruikuanli

Hi, this photo caught my attention, Im just wondering what kind of screen did they used in this concert? a rear screen projector or a LCD ?

Those would be a very large direct view LCD displays, did you actually mean LED? I am pretty sure that is three rear projected images and it does not appear to be edge blended, just three separate images.

I think the general discussion has reflected three typical general scenarios:

1. A single image spanned across multiple screens.
2. Multiple screens with the ability to route sources to each individual screen.
3. A combination of the above.

Each of these may represent different potential solutions. Variables such as it being multiple distinct images versus one 'seamless' image, the ability to key graphics or text over the images, the types and resolutions of the input sources, etc. can also affect the potential solutions. That is why it is so important to identify fairly specifically what one is trying to achieve.

[Esoteric]

Yes, you can see that they used three bordered screens with the image stretched across them.

That is very simple to do.

You can also do edge blending if you have one projection surface. But it often isn't necessary if you line things up just right.

It becomes a little more complicated when you want different content possible in different parts of the screen.

[and12345]

use the matrix switcher
we usually do this for our christmas service.

you could use different input and various output to all the screen, or same output to all the screen.

Here's some definition http://business.wikinut.com/Matrix-S...puts/1l5z-xxm/

and here's the one i recommend to use http://www.extron.com/product/prodtype03.aspx

[rjwalker]

Originally Posted by and12345

Here's some definition http://business.wikinut.com/Matrix-S...puts/1l5z-xxm/

Excellent! Thanks for the link - there is great info here, much well beyond my knowledge pool and it is great to have such informed links included.

I think there was an attempt here awhile ago to compile such a definitional info source - I don't know what happened to it. (For all I know its operational and I've just missed out on i!)

[Brad Weber]

Originally Posted by rjwalker

Excellent! Thanks for the link - there is great info here, much well beyond my knowledge pool and it is great to have such informed links included.

I think there was an attempt here awhile ago to compile such a definitional info source - I don't know what happened to it. (For all I know its operational and I've just missed out on i!)

The problem with such a resource is reflected in the link referenced in that some of the information it contains is incomplete and/or erroneous. A simple example, they say configurations are available of up to 32 in by 16 out yet much larger matrix routers are available without the cascading or daisy-chaining referenced (and even within a single physical device). They also do not seem to address signal scaling, transcoding, conversion, etc. that may be part of some matrix routers and that can be an important element for some applications.

And that latter is the important part as there is no one solution for every application, there are appropriate solutions for each application. For example, the Extron matrix switcher suggested would allow routing a selected source to each screen, but I don't believe it would address displaying the same source as a single image stretched across three screens or address lower thirds, keying lyrics over an image and so on that seem desired.