| Author | Message | ||
     Anonymous Rating: N/A |
Hi, I have this idea in my mind, is posible to make a simple stereo projection system for a Shutterglasses (It`s only works for a Above/Below format, I think so)If you have a card with double Vga Output you can put the resolution at 1024*1536 *120Hz, then you have to build a system to divide the frequency (Vsync pulse). This could be do it, with a simple Flip-flop or if you want something more specialized, you can used a Microcontroller like a PIC16C84 (Here is the datasheet) http://www.microchip.com/1010/pline/picmicro/category/digictrl/8kbytes/devices/16c84/8451/index.htm So you have to put the Vsync pulse of each vga output and divide it by 2, then put this new vsync pulse into each vga Input of your DLP/LCD projectors, each frecuency for this projector is now 60Hz. Before do this, you have to conect your dongle to one of the Vga output`s of your Video card, and take off the adicional Vsync pulse that the doungle put into the Video cable( you have to disconet the Vsync Cable that come from the dongle, and put the vsync that come to the divide system). This is becouse, now we don`t need that the monitor see the adicional V-sync, becouse we generate a new vsync for each monitor or projector. so, that all, then you can put the two projector and put yous system in A/B format (manuals mode), and see the images of your pojector in 3D. The big problems of this method is that you have to be sure, that your double ideo card don´t send at the same time the V-sync to the two monitors, becouse if this occurs you can lose the 3D efecct. But if this ocurs you can build a delay circuit, witj the microcontroller, to syncroniced all the signal that you need. So tell me all of you, what do you think about this new Idea?, Some body try this before? Oscar Boude | ||
| Alexander Oest Rating: N/A |
Hi Oscar Sounds interesting, but there's a couple of details I don't understand. As I understand it, you suggest a dual VGA graphics card with an DLP projector at each VGA port. Then, using an "unsqueezed" above-below picture (and having the driver output the _same_ image to both VGA ports), the electronics ensure that the "above" part is cut away at one projector and the "below" part on another. But how do you ensure that the left eye's projector shows a black image while the right eye's projector displays its picture and vice versa? (It might be implicit in the electronics you describe, but I'm not very good at that). To me, it sounds like your suggestion is actually more useful for polarized projection, where it wouldn't be a problem that both projectors show their image on the screen at the same time. But maybe I'm missing something. Alex Btw, AFAIK therer aren't any drivers that deliver a signal in unsqueezed above-below mode. That might be a problem. It could still be used for video, though. |
