Wow! I was under the impression that didn't work (based on documentation). Guess you always have to try it to be sure.

One thing I've always learned about this kind of stuff is it never gets done unless someone tries it. I put one of the projectors into high altitude mode and panned it to portrait mode on the wall. The 3D Vision glasses work just fine once you pan the projector to portrait.

The only big unknown now is can the "high altitude" mode make up for the thermal differences in portrait mounting on the GT720. That's another unknown I'll need to experiment with.

Hrrm, with experimentation in a few games it looks like depending upon what version of DX renderer you use portrait is very broken. Some versions will portrait rotate the second eye while others won't. Definitely a current quality control fail on the 270.61 Win 7 NVIDIA drivers. My eyes are still hurting after seeing that portrait on left eye and landscape on right. Ug.

After seeing how totally buggy portrait mode is, I'm definitely leaning towards just doing a standard 3840x720 circular screen build. I'm getting way too experimental on some of this stuff. While two projector is more cost effective, the scaling is a bit off. I think it's a case of proving something can be done then moving on to something more standard, which is probably 3840x720 set for 3840x800 16:10 hardware scaled (for a bit more projection height).

Leave it to me to flop around like a fish out of water. New puzzle pieces keep on dropping into my lap though. I have learned I can pick up MView MV103 boxes and do 1600x600, 2048x768 and 2560x720 @120hz using these boxes much like a Matrox DH2G, but 120hz capable. This throws new options into play, with a NVIDIA 3D Vision Surround using 6 projectors. Would only be useful for X-Plane or MSFS though because of the FOV range. And as an alternative there is still the AMD Catalyst 10.12a driver that does 5x1 Landscape. the problem with these crazy concept builds is there is no way to ultimately know if they'll work, until they're built and tested.

How can you go beyond three 3D screens? The MView device is like 3D TH2go? Why couldn't other games work this way, they work with Eyefinity6?

The devil is in the details. Eyefinity has sync issues people are working through or are simply not daring enough to drop the money needed to test it on multiprojector. Multidisplay Eyefinity S3D is a large unknown right now, while NVIDIA 3D Vision Surround is tried and validated as possible.

Yes, basically the MView box is like a TH2G, but allows for higher hz options with two and three displays. To do 6x1 landscape for NVIDIA 3D Vision Surround would require three of the boxes (a box for every two projectors) to match the required triple display restriction NVIDIA Surround has. That's how you get 6 displays to work on a three display limitation with 3D Vision. Personally it's a really crazy setup, but it seems like it would be a bunch of fun.

Wow, that is sounding even more crazy than I already thought.

Here is the sales link for the box: http://www.dhgate.com/p_ff8080812c2fb77 ... 3759f.html

They have to slow boat the product from China when shipping, but they're programmable via RS-232 port for custom resolutions unlike the Matrox boxes. If only Matrox had programmable firmwares in theirs. I already own 4 Matrox boxes.

Interesting find. But will 3DVS definitely work with more than three monitors? I see that for 1080p the refresh rate drops to 50hz. Isn't 60hz required for 3DV? Or is it 120hz (I don't know if the specs mean 3D or 2D refresh rate)?

NVIDIA 3D Vision Surround uses three separate ports out of two or three video cards in SLI mode total to push that pixel count at 120hz through three separate display cables. If we were talking only one port out there would be no way, but we're talking three Dual-Link DVI ports in this configuration. The NVIDIA drivers only see it as three displays but with how it's configured in this example it's actually six. Basically we're pushing the upper limits of what Dual-Link DVI is capable of. No way this would work with 6 1080p projectors. Simply too much pixel width total for the hardware and not enough cable bandwidth to pull it off. But for 720p x 6 projectors this is very plausible. It makes for a total of 7680x720 resolution, which is under the video card's hardware 8192 limit by several hundred pixels. For the NVIDIA side of things, there is a hardware pixel width limit of 8192, while on the AMD side it's 8000. You'll most likely see that double in future cards. If it does double in the future and DP 1.2 spec finds it's way into projectors, you'll be able to see this occur with 1080p 120hz S3D eventually, but not with current tech. That a bit of random trivia to see how video cards have progressed, DX9 generation cards were limited to 4096 way back in the NVIDIA era of 6000 and 7000-series cards. DX7-8 was capped at 2048.

6 1080p 3d projectors would be ~$20,000 lol. But are you sure this would work in 720p? That could be done for $3000, with the Acer H5360, perhaps. Though aren't the bulbs $200 each, so $1200 every 4000 hours or so? Projectors are looking unrealistic to me because of the bulb replacement cost, which is alot, even for three. Plus, I wouldn't really be able to use them for desktop work. Well, maybe pjs could work - 800 days at 5 hours a day. Having a huge projection setup would be cool, but I may end up with 24" or 27" 120hz monitors because they're more practical. I just wish I could find fresnels that large. I can't find above 19". If I could, I'd pull the trigger immediately.


How does Eyefinity 6 handle 7680x3200, then?


I wonder if that means 2560x1600 120hz panels will become available in around five years.

The only way to "know" on these type of setups is to do a proof of concept, because noone else is going to have the experience to say if it would work. That being said, taking the knowledge I have and piecing the puzzle pieces together separately, these things all do work individually. The big question is do the individual successes work as a whole too in this overall configuration. I could say that with 99% certainty that it most definitely would work in 2D fullscreen MSFS, the unknown is how the NVIDIA 3D Vision drivers would handle it. So worst case, you still have a non-S3D setup which is still so exotic that noone else has one like it.

IMHO, for a circular screen configuration you need shorter throw than the H5360 could provide. Preferably 0.5:1, but I'm going 0.7:1 because refurbed GT700/GT720 can be had for cheap. A setup like this is simply too exotic to be a "daily driver". I've ran my current setup since October 2009 without burning through half the bulb life on those projectors, so the 4000/5000 hour life does not bother me. I'm already transitioning over to Optoma GT720 from my previous Optoma EX525ST projectors. They still run good as new, it's just I want 1280x800 in a projector with 120hz capability now and the EX525ST doesn't provide that. By the time the bulb life is on it's last limb for my new GT720's I fully expect two generations newer technology to be around making higher lumen LED based projection appealing and/or actually affordable 1080p entry level, so I could dump these on ebay and upgrade within the bulb life of the projectors a few years from now. Looking for a fresnel lenses above 19", they sell huge ones as solar furnaces on ebay.

Don't let bulb life worry you if you account for it along the life of the bulbs. Looking on ebay, I can find replacement bulbs for my GT720 for $150. Six of those is $900. $900 / 4000 hours = around $0.23 cents an hour for use spread over about two years of use. 4000 hr / 24 months = 167 hrs a month. 167 hours a month * $0.23 = $38 month. Just set aside $38 a month and you have your bulb issue accounted for indefinitely. A very small price to pay to have this exotic of a setup.


Because 8000 is more than 7680, hence within the limits of the maximum pixel width. Eyefinity processes it as a 3x2L not as a 6x1L.


Only if the cable/port standards and your pocketbook allow it. I don't doubt that it'll occur, it's merely when in the future. For now I bet they're going to really push 1080p refinement though and hopefully the prices will tank a bit with more market saturation.

Is there any particular reason why you would be humoring a 6x1L 7680x720 projector setup? A 3x1L will work with 99% more games and applications than a 6x1L will. 3x1L is a generalized configuration, while 6x1L can be only targeted at a very narrow set of games and applications. Mostly just MSFS.

MView just shipped out my first MV103 box. It's going to take a bit to slow boat from China over to US though, but I should have 120 degrees of projection arc working once that box arrives. If it works and the screen design gets refined well enough, I am seriously thinking 360 degree setup for FSX as I already have the 180 degree setup for everything else.

360 degrees would be sick! Can't wait to see some pictures of your setup when its done.

After all this talk with triple-screen I think I am going to have to build an AMD rig to see this stuff for myself. Gonna put together a cheap rig with some 2D monitors for the time being, if its good I can look at getting some 3D ones in the future. Just don't have the space for triple projector in my apartment.

I'd recommend the ASUS 6950/6970 with 4 mini-dp and 2 dvi ports. It's like the 5870 E6, but with DP 1.2 and 6000-series GPU.

The card is a 3-slot beast:
http://www.newegg.com/Product/Product.a ... 6814121431
http://www.newegg.com/Product/Product.a ... 6814121430

Thanks for all the updates, BHawthorne. I recently started investigating nvidia 3D vision, surround setups, etc. I have a decent budget and would love to set up a multi-projector rig and do some testing of my own. Only problem for me though is I live in the city in a small apartment, so I only have about 11 x 11 feet of space, and I can't alter my place. And, I'm not too great at woodworking and no access to a garage / tools etc. But what I'd do for a even a 150 degree circular screen My current setup is a 100" screen and single projector.