RE: [PyMOL] stereo projection with PyMOL
Hi Joe >> [cut - two projector stereo projetion system ] > What kind of uses does your system see? Is it predominately > used by researchers, or by classes, or a good mix between the two? A very rough estimate - 60% internal work, discussions with "wet" chemists, molecular biologists and patent guys. - 20% presentations for costumers and external collaborators - 20% presentations for students (university, a few from high school) The "show-off" effect is still good, as this kind of systems are not yet very common. But it is very valuable also for real work, as it is much easier to see than the 21" screen + shutter glasses, particularly if we are more than two people. BTW - apart from PyMOL, the system also runs VMD and InsightII (Accelrys) in stereo. There are some pictures of the system here: http://62.79.21.192.adsl.vby.tiscali.dk/~epf/projection/ Cheers, Esben
Re: [PyMOL] stereo projection with PyMOL
On Mon, Nov 01, 2004 at 09:45:04PM +0100, EPF (Esben Peter Friis) wrote: > > We have great succes with PyMOL stereo on a two-projector system: > - A Linux box with a Nvidia Quadro card provides the graphics (around > $2000) > - Two standard DLP projectors ($1500 each) > - 2 Circular polarized filters ($300 total) > - 30 Plastic circular polarized glassed ($375) > - Projector stand and filter holder (about $700) > - Non depolarizing screen ($2000) > (prices just from memory :-) > > So you can be running for less than $9000 (even less if you go for a > cheaper screen and a linear polarized solution). I doubt that you can > get a decent CRT projector for that kind of money :-) The equipment was > bought from REASOM (http://www.reasonco.com) and ProjectorPoint > (http://www.projectorpoint.com). > > This 3D projection system is a real showoff, both internally and for > costumer/guest presentations! Thanks Esben for the synopsis. It's encouraging to know someone has this working with PyMOL. I saw a presentation earlier this fall from someone involved in the GeoWall project (http://www.geowall.org) and ever since then have been thinking over ways to approach putting a system like this together (both technical as well as what kind of funding to try to use). What kind of uses does your system see? Is it predominately used by researchers, or by classes, or a good mix between the two? -- D. Joe Anderson, Asst. Sci.2252 Molecular Biology Bldg. BBMB Research Computing Support www.bb.iastate.edu/computing bbsupp...@iastate.edu
RE: [PyMOL] stereo projection with PyMOL
Hi Seth First, I don't think it is possible at all to create shutter-glass stereo on a standard DLP or LCD projector. I have actually tried this (using an SGI) by going to very low refresh rates, such as 2x30 Hz. I got some kind of effect, but the DLP/LCD projector does not sync correctly to the refresh from the video card. So, the effect was on/off every 10 seconds. It is hard to tweak the refresh rate of the SGI video card, but it is possible. I can probably dig out my old files if you like, but I don't think it is worth trying You can only reliably do this kind of stereo with a fast CRT projector, which are sold by eg. Barco. If you want to use the SGI, you can either stick to the CRT-projector and shutter glasses OR buy a stereo-splitter box ($10,000) and set up a polarized two projector solution (see below). We have great succes with PyMOL stereo on a two-projector system: - A Linux box with a Nvidia Quadro card provides the graphics (around $2000) - Two standard DLP projectors ($1500 each) - 2 Circular polarized filters ($300 total) - 30 Plastic circular polarized glassed ($375) - Projector stand and filter holder (about $700) - Non depolarizing screen ($2000) (prices just from memory :-) So you can be running for less than $9000 (even less if you go for a cheaper screen and a linear polarized solution). I doubt that you can get a decent CRT projector for that kind of money :-) The equipment was bought from REASOM (http://www.reasonco.com) and ProjectorPoint (http://www.projectorpoint.com). This 3D projection system is a real showoff, both internally and for costumer/guest presentations! Best regards Esben -Original Message- From: pymol-users-ad...@lists.sourceforge.net [mailto:pymol-users-ad...@lists.sourceforge.net] On Behalf Of Seth Harris Sent: 1. november 2004 20:16 To: pymol-users@lists.sourceforge.net Subject: [PyMOL] stereo projection with PyMOL I was curious if anyone has successfully done stereo over a projector with PyMOL. That is to say not the cross-eyed stuff but the shutter-glasses type stereo. I was recently trying to do this for a company presentation from an SGI. On the same machine Insight can do stereo (although they tell me it took some fiddling), and while PyMOL goes into stereo mode on the monitor, the projected image only shows one of the eye views. Both programs have stereo within a window so I didn't think it was a fundamental difference in the overall mode, but perhaps a difference in their chosen frequencies. If this turns out to be the case, is it possible to change the frequency PyMOL uses for shuttered stereo such that I could sync it with the projector's presumably more limited range? Thanks, seth --- This SF.Net email is sponsored by: Sybase ASE Linux Express Edition - download now for FREE LinuxWorld Reader's Choice Award Winner for best database on Linux. http://ads.osdn.com/?ad_id=5588&alloc_id=12065&op=click ___ PyMOL-users mailing list PyMOL-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/pymol-users
[PyMOL] stereo projection with PyMOL
I was curious if anyone has successfully done stereo over a projector with PyMOL. That is to say not the cross-eyed stuff but the shutter-glasses type stereo. I was recently trying to do this for a company presentation from an SGI. On the same machine Insight can do stereo (although they tell me it took some fiddling), and while PyMOL goes into stereo mode on the monitor, the projected image only shows one of the eye views. Both programs have stereo within a window so I didn't think it was a fundamental difference in the overall mode, but perhaps a difference in their chosen frequencies. If this turns out to be the case, is it possible to change the frequency PyMOL uses for shuttered stereo such that I could sync it with the projector's presumably more limited range? Thanks, seth
