Sounds very difficult, but it could work. Electronicly, it will definately work. You'd have to use two projectors. I don't think it's possible to align two monitors to work w/ the same lenses w/o having a black line down the middle. If you had two of the same OHP's, two panels, and two graphics cards (or 1 dual monitor graphics card), I don't see why this wouldn't work, but is it cost effective? Pretty expensive. Only worth it if your going for the best projector known to man.
If you could combine two SXGA (or even just XGA) panels, you'd have a SICK resolution. You'd be using two OHP's, so your effectively doubling your brightness. Optical resolution would benefit from two projectors.
It'd be so wide that you could even rescale your picture to watch 2.35:1 DVD's on a full screen.
One important thing to mention. I don't believe DirectX can display one picture on two monitors. It'd only work for windowed applications. So most computer games aren't going to work.
If you could combine two SXGA (or even just XGA) panels, you'd have a SICK resolution. You'd be using two OHP's, so your effectively doubling your brightness. Optical resolution would benefit from two projectors.
It'd be so wide that you could even rescale your picture to watch 2.35:1 DVD's on a full screen.
One important thing to mention. I don't believe DirectX can display one picture on two monitors. It'd only work for windowed applications. So most computer games aren't going to work.
gaming and multiple monitors
It has been done with three monitors with the Matrox Parhelia so I dont see why only 2 monitors would be so hard. That said the only games I've see using three monitors are Quake 3 based games. I've remember reading how to, but now I can remember.
It has been done with three monitors with the Matrox Parhelia so I dont see why only 2 monitors would be so hard. That said the only games I've see using three monitors are Quake 3 based games. I've remember reading how to, but now I can remember.
Lifter said:
well...speaking of which.. what IS the best projector known to man? i looked around yahoo for the most expensive and i found 72k$
yea its off topic i know 🙂
That's a very good question. You see, I see these $50k and up projectors and they are unimpressive on the electronic side of things. Yeah, they have a sick contrast ratio. And I'm sure they're bright enough to project clearly on a Drive-In theatre screen. They all have all these expensive sounding (to most) features like 24fps detection. They've got 3 lenses for R, B, and G. But here's what I don't like.
1. They're mostly DLP projectors. Highest native res I've seen as (honestly) 1280x1024 (or 1280x768 for widescreen). That was for an 80k machine. I know Runco is like the Ferrari for projectors. I'm interested in how high a native res their top of the line model is.
2. There's expensive CRT projectors. They'll have a ridiculously high resolution and contrast ration, but I have yet to see a CRT projector that has VGA or any computer input. Maybe they exist, but I haven't seen them. My preception of the market (which is just a bunch of techno-stupid rich people) is that nobody wants CRT anymore, and it's DLP or bust for these millionaires. The high res is all you need for high-def, but playing computer games on a screen is something you should be able to do for the price of a Mercedes.
The way I look at it, is that I don't need this giant frame. This is for a normal size room, not an auditorium. I don't need it to look flawless w/ sunlight coming in the room. I can paint my screen grey, and the whites won't be spectacular. But everything else will be stunning because the resolution will be better than any of those $50k and up DLP projectors.
1. They're mostly DLP projectors. Highest native res I've seen as (honestly) 1280x1024 (or 1280x768 for widescreen). That was for an 80k machine. I know Runco is like the Ferrari for projectors. I'm interested in how high a native res their top of the line model is.
2. There's expensive CRT projectors. They'll have a ridiculously high resolution and contrast ration, but I have yet to see a CRT projector that has VGA or any computer input. Maybe they exist, but I haven't seen them. My preception of the market (which is just a bunch of techno-stupid rich people) is that nobody wants CRT anymore, and it's DLP or bust for these millionaires. The high res is all you need for high-def, but playing computer games on a screen is something you should be able to do for the price of a Mercedes.
The way I look at it, is that I don't need this giant frame. This is for a normal size room, not an auditorium. I don't need it to look flawless w/ sunlight coming in the room. I can paint my screen grey, and the whites won't be spectacular. But everything else will be stunning because the resolution will be better than any of those $50k and up DLP projectors.
Hi folks, just a heads up to tell you why good multiprojector controller setups cost so much.
Basically each image has to be able to be corrected in real time for any spherical aberations due to the projection lens system of the projector, as well as keystone effects, in order for the image/s to line up perfectly when projected. The controller also has the ability to control levels of rgb and brightness/contrast to make the images look the same.
This involves a lot of proccessing power, and therefore expense. I'm sure it could be done on a DIY level, but it would involve cards full of DSPs and custom software.
Basically each image has to be able to be corrected in real time for any spherical aberations due to the projection lens system of the projector, as well as keystone effects, in order for the image/s to line up perfectly when projected. The controller also has the ability to control levels of rgb and brightness/contrast to make the images look the same.
This involves a lot of proccessing power, and therefore expense. I'm sure it could be done on a DIY level, but it would involve cards full of DSPs and custom software.
pinkmouse said:
.....cool😎 i learned something new 🙂
lifter i've seen MANY projectors that go above 1280x1024
i seen 1600x1200 i even saw a 2400+ res.
but they are cheap compared to the runco onces. roughly 6k to 20k$ **N00b question ALERT** whats contrast ratio?
**last Question🙂 ** does any one know what type of projector movie theaters use?(those things are POWERFUL!)
-JimmY-
Movie theatres use Xenon bulb powered 35mm film projectors. Contrast is a measurement of how black the blacks are. Look at an older laptop screen. The black looks more like grey. That's a bad contrast ratio.
I'm looking at the latest Sharp DLP dubbed the world's first high-def DLP projector. It's native rez is 1280x720. It's price tag is $6500.
A Sony LCD front projector. 1366x768 and a $6500 price tag.
Runco makes one LCD projector. It has a native rez is 1366 x 768. MSRP- $20,000 dollars. Their best DLP projector has 1280x720. It costs $29,000.
Runco's top-of-the-line projector is the DTV-1200. It's CRT. It has 1250 lines of resolution. Translation- 50 lines more than 1600x1200. And what does this cost? $45,000.
Please tell me the make and model of a projector that has a 1600x1200 (not compressed) native res.
I did a projector search on Cnet. Not ONE projector had a native rez higher than 1280x768, and only one of them was even that high. They are all 800x600 or 1024x768.
A Sony LCD front projector. 1366x768 and a $6500 price tag.
Runco makes one LCD projector. It has a native rez is 1366 x 768. MSRP- $20,000 dollars. Their best DLP projector has 1280x720. It costs $29,000.
Runco's top-of-the-line projector is the DTV-1200. It's CRT. It has 1250 lines of resolution. Translation- 50 lines more than 1600x1200. And what does this cost? $45,000.
Please tell me the make and model of a projector that has a 1600x1200 (not compressed) native res.
I did a projector search on Cnet. Not ONE projector had a native rez higher than 1280x768, and only one of them was even that high. They are all 800x600 or 1024x768.
DAMN!! i just did a search and i cant find it! that sux, last time i did a search on yahoo and i found it, im going to do another search and tell u what i find.
Its been a long time since this thread was added too, but i had the same idea, and a few others as the original one posted here. There are several things that could be done by using multiple monitors.
First off, the last post was pretty old, and no offense, i dont know how many people really know this, but ever since 98, (maybe earlier) Microsoft Operating Systems have supported atleast 9 monitors from one PC. Thats what i said. 98 supports up to 9 monitors, (1 Primary, and 8 secondary)
It is only better with Windows XP seeing that it supports 10 (1 Primary and 10 Secondary)
Like i said, allot of people don't know this, and its actually not that big a deal. I have been using more than 1 monitor for several years, and well before XP. I have used 3 monitors even, but thats where my experience has gone.
This might be a long post, so lemme establish credentials.
This link is to the list, compiled by microsoft, of all the video cards that support "Multiple Monitor" feature. Windows does all the work, and it doesnt have a hard time doing it.
http://support.microsoft.com/default.aspx?scid=kb;en-us;307397
I have had this same idea, but seeing that i am new to the forum, i can't make my own thread yet. It seemed like this thread died, but i want to make it live again.
I read or heard several ideas.
1. Increase the brightness.
2. Making a higher resolution output.
3. Making better colors.
4. Getting a different screen dimmension (ie. 16:9 or 4:3, or something like 8:3
To these i ad this
5. Eleminate or reduce the visibility of the screen door effect
6. Obtain an IMax effect.
7. Multi-monitor, watch a movie on one, and check email on the other.
1. Increase the brightness.
1. Personally i believe there are several ways to increase the brightness of the picture by using this idea that you place the projections ontop of one another. There is also the idea of simply keeping the same size on the wall, but using 4 LCD's and more than one light source to get more light onto the wall, by breaking the picture into more than one part.
2. Making a higher resolution output.
This kinda just goes along with the idea, or putting high res LCD's projection right beside one another.
3. Making better colors.
I dont know what effect layering would have on the actual projection. I would guess that the blacks might be a bit more grey than black.
4. Getting a different screen dimmension (ie. 16:9 or 4:3, or something like 8:3
Cool idea, but i dont know how it could be used
5. Eleminate or reduce the visibility of the screen door effect
I had the idea of layering the projection on top of one another (in this case maybe just two LCDs) and offsetting them both just a tiny bit, so that the pixels on the wall were not exactly lined up, then adjusting the picture so that the colors lined up again. Imagine it if you can, i don't really know how to explain it. But the idea should work.
6. Obtain an IMax effect.
This is how IMax does business.
7. Multi-monitor, watch a movie on one, and check email on the other.
This is a simple enough idea. Some of us simply dont have the time to do just one thing, and this would be a logical solution.
Tell me what you think.
First off, the last post was pretty old, and no offense, i dont know how many people really know this, but ever since 98, (maybe earlier) Microsoft Operating Systems have supported atleast 9 monitors from one PC. Thats what i said. 98 supports up to 9 monitors, (1 Primary, and 8 secondary)
It is only better with Windows XP seeing that it supports 10 (1 Primary and 10 Secondary)
Like i said, allot of people don't know this, and its actually not that big a deal. I have been using more than 1 monitor for several years, and well before XP. I have used 3 monitors even, but thats where my experience has gone.
This might be a long post, so lemme establish credentials.
This link is to the list, compiled by microsoft, of all the video cards that support "Multiple Monitor" feature. Windows does all the work, and it doesnt have a hard time doing it.
http://support.microsoft.com/default.aspx?scid=kb;en-us;307397
I have had this same idea, but seeing that i am new to the forum, i can't make my own thread yet. It seemed like this thread died, but i want to make it live again.
I read or heard several ideas.
1. Increase the brightness.
2. Making a higher resolution output.
3. Making better colors.
4. Getting a different screen dimmension (ie. 16:9 or 4:3, or something like 8:3
To these i ad this
5. Eleminate or reduce the visibility of the screen door effect
6. Obtain an IMax effect.
7. Multi-monitor, watch a movie on one, and check email on the other.
1. Increase the brightness.
1. Personally i believe there are several ways to increase the brightness of the picture by using this idea that you place the projections ontop of one another. There is also the idea of simply keeping the same size on the wall, but using 4 LCD's and more than one light source to get more light onto the wall, by breaking the picture into more than one part.
2. Making a higher resolution output.
This kinda just goes along with the idea, or putting high res LCD's projection right beside one another.
3. Making better colors.
I dont know what effect layering would have on the actual projection. I would guess that the blacks might be a bit more grey than black.
4. Getting a different screen dimmension (ie. 16:9 or 4:3, or something like 8:3
Cool idea, but i dont know how it could be used
5. Eleminate or reduce the visibility of the screen door effect
I had the idea of layering the projection on top of one another (in this case maybe just two LCDs) and offsetting them both just a tiny bit, so that the pixels on the wall were not exactly lined up, then adjusting the picture so that the colors lined up again. Imagine it if you can, i don't really know how to explain it. But the idea should work.
6. Obtain an IMax effect.
This is how IMax does business.
7. Multi-monitor, watch a movie on one, and check email on the other.
This is a simple enough idea. Some of us simply dont have the time to do just one thing, and this would be a logical solution.
Tell me what you think.
Hmm msounds like a great chance to integrate PIP (picture in picture) to to DIY
Ok this might be alittle off topic BUT.... Would it be possible to build two identicle projectors and send the same signal to both then allign the projection so that the out come is 2 times as bright. I remeber reading somewhere online that this is done with commercial projectors and is called "projecter stacking" or sumthing like that.
Ok this might be alittle off topic BUT.... Would it be possible to build two identicle projectors and send the same signal to both then allign the projection so that the out come is 2 times as bright. I remeber reading somewhere online that this is done with commercial projectors and is called "projecter stacking" or sumthing like that.
I may be mistaken, but I think the multiple monitor feature was removed as of Windows XP for the home edition. (Definitely still part of Pro edition, though.)
Windows XP home has suport for multiple monitor... use to use it befor i upgraded to Pro. Most versions of windows Had some level of multiple monitor support windows XP is by far the easyest though
Check out this project. I think these guys are going to be able to help us with splitting the signal up to use a multi- LCD design, and get better brightness. or bigger application.
http://gstreamer.freedesktop.org/apps/videowhale.html
http://gstreamer.freedesktop.org/apps/videowhale.html
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