//flex table opened by JP

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yfmain
10-15-2001, 08:10 AM
I would be most grateful if you could help me with the following
request:

I am conducting research into virtual reality and stereo displays. At the moment I can use a variety of software packages such as games (Quake etc) running DirectX or the World Toolkit running OpenGL to create stereo images i.e. left and right eye views of a scene. Currently these two images are viewed with shutter glasses on a single monitor (we use an NVidia chipset
card for the DirectX applications and an Elsa Gloria XL for the OpenGL ones and the shutter glasses are the Elsa Revelator type)

For the next stage of our research we need to direct the left and right images to separate monitors and so now need to consider dual monitor support video cards but it is not obvious to us how a video card can be instructed to do this.

Are you able to supply any information or software in the form of a SDK that would allow your product to take the information being sent to it in either DirectX or OpenGL format (preferably both) and send the left and right images to separate monitor outputs (presumably these correspond to even and odd fields of the video signal) - perhaps by the use of a dual buffer product?


Thanking you in anticipation of your help

With best wishes

yfmain

Bob The Great
10-15-2001, 12:23 PM
wow! You don't get questions like these very often. I think it would be pretty hard to get 3d on two screens. You'd probably have to program something to do it for you. Usually when you have dual display it only works for 2d, then the 2nd moniter switches off for 3d. You have two options in how you want to go around dual display. The eisest would be having a card that supports it like the Radeon VE. It's a pretty powerfull card, and would probably be your best bet. The other way would be having your primary vid card in the AGP slot, and a secondary in a PCI slot, then hooking a moniter up to both. That might work, but because of the different FPS they will be getting, different refresh rates, and everything it could be kinda funky. I'd go with the VE. Or actually your uusing NVidia chipset based graphics. So actually that wouldn't work would it... I guess find a good GeForce2 with dual display. It's going to be hard no matter hwo you go about it.

Hope this helped somewhat :)