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Andoni Goicochea
Projection
on Jul 13, 2010 at 5:15:28 pm

Hi Walter!

I am from Caracas, Venezuela. I was hoping if you could help me
orientating me on how to project using 3 multimedia projectors a
video developed in 3072x768.

I have a MacPro with 4 dvi outputs, that i would like to use without
buying aditional hardware...

Can you help me with this??


THANKS!!!!


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Walter Soyka
Re: Projection
on Jul 13, 2010 at 6:11:21 pm

[Andoni Goicochea] "I was hoping if you could help me orientating me on how to project using 3 multimedia projectors a video developed in 3072x768. I have a MacPro with 4 dvi outputs, that i would like to use without buying aditional hardware... "

I haven't used any Mac apps that can split one video across multiple discreet graphics card outputs. You might look into the Matrox TripleHead2Go. It connects to one video output on your Mac, so it appears as a single screen to all playback applications, but it can be configured for three 1024x768 outputs.

Renewed Vision's ProVideoPlayer explicitly supports the TH2G, and I've used Keynote with it countless times. Other playback apps like Playback Pro or Virtual VTR should also be able to use it without any trouble. I believe all these software packages have demo versions available, and the Matrox hardware is really inexpensive, so you should be able to test a couple solutions with only a small investment.

A 3072x768 frame is only about 15% bigger than a 1920x1080 frame, so you shouldn't have much trouble playing it back from a single machine. That said, I recommend testing your compression workflow and playback.

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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Bill Lewis
Re: Projection
on Jul 18, 2010 at 5:23:16 pm

You may also want to look at QLAB, it will "spread your content" over multiple outputs on the same MAC. Look at custom animation settings. Very powerful software it take some time to learn it, but should do the trick!


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Andoni Goicochea
Re: Projection
on Jul 20, 2010 at 3:50:22 am

Excellent Bill, I just tried it. ITS PERFECT.



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Bill Lewis
Re: Projection
on Jul 20, 2010 at 10:45:57 am

Great.......I have done the same thing with good results as well. What resolution and codec is your "projected source file" just curious. Use your projectors to blend the images and you should be good to go.


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Walter Soyka
Re: Projection
on Jul 22, 2010 at 7:16:15 pm

Bill, thanks for posting this. QLAB looks really promising!

Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog - What I'm thinking when my workstation's thinking
Creative Cow Forum Host: Live & Stage Events


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