Widescreen Gaming Forum

I just want to let you guys know that it is possible to hook up two TH2G to a single gpu (used a 6800). I had 2 of them hooked up to 6 projectors, then used nVidia's horizontal span to make it appear to be a single 6144x768 display (6x (1024x768)) Google Earth crashed when trying to full screen across it. Using vertical span to make a 3072x1536, Google Earth was able to work.

This is not my personal setup, I wish, it's for a class project.

Is see no way to get it to work with 6 monitors :(

@ Phobos ... any chance of a photo or two ?

If you're not going to game but you want 6 monitors, why not just hook them up to 3 graphics cards?

This is the only good shot I got of it. The image is projected onto a 12 foot dome. I'll try to get better pictures next time I work on it, probably Thursday.

Ah the Matrox site said it couldn't be done!

Matrox's software may have problems with the setup. I didn't use any of the software, I just plugged them in, restarted the machine, and Windows picked up the supported resolutions.

@ JKeefe- They want 3D rendered across all the displays, not necessarily games, but definitely Google Earth and Celestia.

Matrox never said that it wasnt posible. All they said is it wasnt supported by them.

How did you project the image on that dome? Are you using 6 projectors?

Yep, We're using 6 projectors right now, though in that picture only 3 of them are actually shinning on the dome, we need more long vga cables to get more projectors around the dome.

I think it's because he's using 8800's which I've seen people mention allow for resolutions over the 4096 width limit. I think on the 7 series and earlier might have been a video card hardware limit. In the SoftTH thread someone mentioned some pretty big width resolutions using 8800's.

Which OS and video card drivers are being used?

Its DX10 envierment that allows 8096 × 8096 and since 8000 series are the only cards to support DX10 that is why he is able to do it.

From original post ... :wink:

I just want to let you guys know that it is possible to hook up two TH2G to a single gpu (used a 6800).

We did this in Windows XP, we could not get 3D to display across it when it was set at 6x1 because of that width limit, but Google Earth did work when I put in a 3x2 configuration.

@ JKeefe- They want 3D rendered across all the displays, not necessarily games, but definitely Google Earth and Celestia.

Google Earth is 3D?

Celestia, while technically not a game, fits into that category for this discussion, so I see why you want to do it this way.

Would be interested in seeing your 8800 and how it handles 2. I have 2 8800GTS 320's in my system. Wonder if Vista + 8800 = horizontal span ability with the 2. 6 projectors doing ~360 degrees sounds very cool. I have 3 projectors atm.

Yeah I'd really like to get my hands on the 6 projectors too. :)

I'm not sure if the option to span displays is in Vista yet, all I see is Single, Clone and Dualview, but it might because I'm using displays with different resolutions.

From original post ... :wink:

I just want to let you guys know that it is possible to hook up two TH2G to a single gpu (used a 6800).

Guess i didnt read the original post well. :)