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mattsimis
Joined: 31 Oct 2008
Posts: 3
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| Posted: Fri Oct 31, 2008 1:38 am Post subject: Maximum resolution image width -super wide screen support |
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Hi,
Im considering a CRT projector as an alternative to 3x LCD monitors for use with super wide surround gaming, perhaps using the Matrox TripleHead2Go graphics module:
http://www.matrox.com/graphics/en/ad/gxm/th2go/wsg/
http://www.matrox.com/graphics/en/products/gxm/th2go/
Generally people are spreading images across 3 LCD monitors with this device (up 5040x1650, 4.8:1 Aspect Ratio, 5.2MP). A user on the Widescreen gaming forum recently posted an image of a CRT projector (NEC 1352LC) running at 1920x600 (wide, but "only" 3.2:1 AR and 1.1MP).
http://www.widescreengamingforum.com/forum/viewtopic.php?t=14775
Would a relatively cheap and quiet (ie something like the DWIN 7" CRT or maybe some 8" model) be able to manage at least this res? Is it possible to get a 4.8:1 Aspect Ratio and somewhat higher vertical res out of such a class (ie not hyper expensive!) PJ?
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Fri Oct 31, 2008 4:31 am Post subject: |
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I have had no trouble running 1920 x 802 progressive at 72 hz on my XG LC.
It's only 2.40:1 AR, but still wide.
You should be able to run whatever res you like, yes it is possible to run a 4.8:1 AR. Bizarre. but possible.
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kschmit2
Joined: 09 Mar 2006
Posts: 1141
Location: Heidelberg, Germany
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| Posted: Fri Oct 31, 2008 7:38 am Post subject: |
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I would run a side-by-side blend of 3 LC CRT PJs each with their rasters maximized (5:4 aspect ratio). With blend zones that should allow you to achieve approximately a 12:4 (or 3:1 image) aspect ratio image that is roughly 20 to 22 ft wide (based on 8ft projection width per PJ and depending on width of blend zone) and roughly 7 ft high.
It would be significantly more immersive than a 4.8:1 aspect ratio.
I would run each of them at 1280x1024 at 75 Hz
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Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
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| Posted: Fri Oct 31, 2008 8:45 am Post subject: |
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Ahh, yeah, but he said cheap Kai!!
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mattsimis
Joined: 31 Oct 2008
Posts: 3
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| Posted: Fri Oct 31, 2008 1:15 pm Post subject: |
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| Mark_A_W wrote: | I have had no trouble running 1920 x 802 progressive at 72 hz on my XG LC.
It's only 2.40:1 AR, but still wide.
You should be able to run whatever res you like, yes it is possible to run a 4.8:1 AR. Bizarre. but possible. |
Really? Ive been using Bandwidth calcs to try figure this out, the one below says you need 166Mhz Bandwidth to do 1920x802 which is well above even the best XG LC (150mhz) capabilities:
http://www.csgnetwork.com/videosignalcalc.html
Am I missing something? Ive been ruling out different units that maybe I shouldnt have based on these calculators.
The other key question is there must be a max width to height physically capable from projectors (for example they surely couldnt project a 30pixel high 2500 pixel width image could they)?
The 3 projector setup is likely fantastic, however its over budget both financially, running cost, noise and space!
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SisterOfMercy
Joined: 31 Oct 2007
Posts: 155
Location: Zwart Nazareth, The Netherlands
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| Posted: Fri Oct 31, 2008 1:45 pm Post subject: |
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How does this Matrox unit work? If it needs difficult drivers, or is not compatible with directX/openGL, it might be difficult using it with games. When it's just imitating a very wide screen monitor, that might work.
As long as you can use a different graphics card with it, as Matrox is not so good with graphics cards suited for games. They're more in the professional market, it seems.
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mattsimis
Joined: 31 Oct 2008
Posts: 3
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| Posted: Fri Oct 31, 2008 5:47 pm Post subject: |
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| SisterOfMercy wrote: | How does this Matrox unit work? If it needs difficult drivers, or is not compatible with directX/openGL, it might be difficult using it with games. When it's just imitating a very wide screen monitor, that might work.
As long as you can use a different graphics card with it, as Matrox is not so good with graphics cards suited for games. They're more in the professional market, it seems. |
One of its main uses is games (as on the Widescreen Gaming forum link), you have described it correctly in that it emulates a very widescreen monitor to Windows (via hardware, not drivers). It also has bezel management software but thats really only applicable to monitors of course. It works with any graphics card, some videos of it in operation on Youtube, its very impressive.
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tri_joel
Joined: 03 Jul 2007
Posts: 646
Location: Northern Virginia
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| Posted: Fri Oct 31, 2008 5:56 pm Post subject: |
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I've been checking out the Matrox double head to go. Matrox has a blending software, but I can't figure out if or how it would work with the "to go" hardware. I found a thread with someone using one with a PS3, but I can't find that website again.
I have two BG1208's that I would like to attempt an edge blend or edge match. It will be all for fun and time wasting purposes, I like to tinker.
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