| Author | Message | ||
     Fco Javier Valero Rating: N/A |
Hello all! I´m preparing a 3D presentation and I´m having some troubles with the image and the projectors. Is it possible to display a 3D image using 2 standard projectors ? I´d heard that the xpo.1 product is specially design for that propose, but I can´t contact with them and I don´t know the price for it. Do you know if there are another products similar to xpo.1 ? In the other hand I thinking of using Direct3D and a Matrox G400 max, but I don´t known if is it possible to display the 2 images (left and right) on both RGB outputs alternatively and connect them to the projectors? Also I´m interested on how Direct3D works to generate the 2 images (left and right) and how the 3D graphics board drivers manages this information. Thanks for your interest. | ||
| Alexander Oest Rating: N/A |
It is possible to project stereoscopic images with two projectors. Usually, vertical resp. horisontal polarising filters are mounted in front of the projectors, and glasses polarised correspoindingly are worn by the audience. If your projectors are pre-polarised (many LCD projectors are), you have a problem. I'm not sure how to deal with it, but it might be possible to de-polarise the image before adding the vertical and horisontal polarising filters in front of the projectors. Re contacting Cyviz(the makers of xpo.1): I've emailed with them and they reply ok. Did you try to email them? Unfortunately I think most similar products are composite or S-video demultiplexers. The xpo.1 is a real dream come true. I'm trying to get funding to buy one, but I think they're really expensive (+10.000 Euro, I guess). I am experimenting with a dual VGA output graphics card (ASUS 7100), and it seems a promising layout for playing above-below video. If I arrange the desktop in say 800x1200 in the driver settings (like having stacked monitors), the right eye image appears on one monitor and the left eye image on the other, if i stretch the video player. Haven't tried it with projectors yet, but I imagine it'll work fine. Having direct3D (or Glide or OpenGL) spread the image over two projectors is more troublesome. I emailed ASUS tech support suggesting that they developed a driver for it, but they didn't reply. Sad, because it would have made the 7100 graphics card THE ULTIMATE 3D projection card. I'm not at all into driver development, but if someone could develop it - a driver putting right eye'e image out through one vga port and left eye's image through the other - it would solve a lot of problems. Maybe there's light at the end of the tunnel... with the new and much debated nvidia stereoscopics drivers? Alex |
