Ahaaaa... That make things a bit clearer :-) We do have a geowall, but the Linux driver supplied by Nvidia directly supports sending the left and right images of the quad-buffered stereo to the two separate video heads on the card, which are then connected to the two projectors. This eliminates the need for the very expensive active-to-passive stereo converter. This do require a Quadro-card, though. It is not supported by the cheaper GeForce cards.
I think the Linux driver also support the type of stereo you mention here: Making a kind of side-by-side stereo, which is then converted to "real" stereo by doubling the desktop width, and splitting desktop between the two heads. I haven't tried, but I guess that is also supported by the GeForce cards. If it is not too difficult, I'll give it a try! I would argue that even though you can save a few hundred bucks (difference between a Quadro and a GeForce card), the Quadro card solution is easier. A Quadro FX 1300 card is around for about $300-400, which is still small compared to the Geowall system. But for Mac (and maybe Windows?) users, this driver option may not be available. Cheers Esben -----Original Message----- From: Warren DeLano [mailto:war...@delsci.com] Sent: Mon 2005-10-17 22:43 To: EPF (Esben Peter Friis) Subject: RE: [PyMOL] Geowall Testing Esben, If that is the case, then you don't actually have a "Geowall" -- you have a professional stereo device setup that converts the active-stereo signal sent from the nVidia cards into a passive-stereo signal for the two projectors. That's equivalent to QBS stereo on a CRT with glasses, but typically costs quite a bit more (as much as $50k USD) Geowalls are a low-end alternative the geologists came up with a few years back. Instead of requiring a stereo-capable video card, they use a normal (not necessarily stereo-capable) dual-headed video card to drive two projecters straight from the PC. That can bring the cost down to under $5k total, but it means that the software needs to draw the complete image twice, including the GUI, hence these changes. Cheers, Warren -- Warren L. DeLano, Ph.D. Principal Scientist . DeLano Scientific LLC . 400 Oyster Point Blvd., Suite 213 . South San Francisco, CA 94080 USA . Biz:(650)-872-0942 Tech:(650)-872-0834 . Fax:(650)-872-0273 Cell:(650)-346-1154 . mailto:war...@delsci.com > -----Original Message----- > From: pymol-users-ad...@lists.sourceforge.net > [mailto:pymol-users-ad...@lists.sourceforge.net] On Behalf Of > EPF (Esben Peter Friis) > Sent: Monday, October 17, 2005 1:30 PM > To: Warren DeLano > Cc: pymol-users@lists.sourceforge.net > Subject: RE: [PyMOL] Geowall Testing > > > I'll try it when I get back to work tomorrow - but I'm a bit > confused :-) The features you mention, haven't they been > part of PyMOL for some time already? We have active stereo > glasses for our workstations, and use the same PyMOL version > (0.99beta14) for those and the Geowall. > > > Cheers, > > Esben > > > -----Original Message----- > From: Warren DeLano [mailto:war...@delsci.com] > Sent: Mon 2005-10-17 22:06 > To: EPF (Esben Peter Friis) > Subject: RE: [PyMOL] Geowall Testing > > Esben, > > Great! > > Added: support for the internal gui, pop-up menus, sequence > viewer, and command line when using a passive stereo setup > (versus active stereo setups that cost about 10X more). > > Can you try the build at http://delsci.com/beta? > > Cheers, > Warren > > > > -- > Warren L. DeLano, Ph.D. > Principal Scientist > > . DeLano Scientific LLC > . 400 Oyster Point Blvd., Suite 213 > . South San Francisco, CA 94080 USA > . Biz:(650)-872-0942 Tech:(650)-872-0834 > . Fax:(650)-872-0273 Cell:(650)-346-1154 > . mailto:war...@delsci.com > > > > > > ________________________________ > > From: EPF (Esben Peter Friis) [mailto:e...@novozymes.com] > Sent: Monday, October 17, 2005 12:58 PM > To: Warren DeLano > Subject: RE: [PyMOL] Geowall Testing > > > > > Yep - we have one, which we use mostly for PyMOL presentations > :-) > Stereo already works great, so I'm curious what you > have in mind. The computer connected to it is running Linux > (Fedora Core 2) and uses an Nvidia Quadro 750GLX card. > > > Cheers, > > Esben > > -----Original Message----- > From: pymol-users-ad...@lists.sourceforge.net on > behalf of Warren DeLano > Sent: Mon 2005-10-17 16:27 > To: pymol-users@lists.sourceforge.net > Subject: [PyMOL] Geowall Testing > > PyMOL Users: > > Regarding "geowalls" [also known as dual-projector > passive stereo setups > that use polarized lenses & glasses to deliver > low-cost stereo 3D to > large audiences]... > > Does anyone have one set up right now who might be > able to test a new > PyMOL build with improved geowall stereo support? > > Cheers, > Warren > > -- > Warren L. DeLano, Ph.D. > Principal Scientist > > . DeLano Scientific LLC > . 400 Oyster Point Blvd., Suite 213 > . South San Francisco, CA 94080 USA > . Biz:(650)-872-0942 Tech:(650)-872-0834 > . Fax:(650)-872-0273 Cell:(650)-346-1154 > . mailto:war...@delsci.com > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: > Power Architecture Resource Center: Free content, > downloads, discussions, > and more. http://solutions.newsforge.com/ibmarch.tmpl > _______________________________________________ > PyMOL-users mailing list > PyMOL-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/pymol-users > > > > > > >
