VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Mar 04 2004 - 13:11:00 CST

Joe,
  Ah. VRJuggler is like the CAVE/FreeVR systems in that its not just
a normal OpenGL program, its a system designed to run multi-board display
systems. VMD doesn't have any built-in facility to display on multiple
video boards, it just supports the standard OpenGL stereo features.
You'd have these same issues with all programs that just use standard
OpenGL stereo.

  John

On Thu, Mar 04, 2004 at 01:55:31PM -0500, Joe Zhou wrote:
> John,
>
> It seems that is the only way to do it with VMD now. I have not
> run any other software on my system yet, however my program
> with VRJuggler runs fine on it.
>
> Thanks a lot,
>
> Joe Zhou
>
> At 02:50 PM 3/3/2004 -0600, John Stone wrote:
>
> >Joe,
> > In that case, you're only alternative is to use one of the
> >Side-by-Side modes in VMD by making the graphics window take
> >the full screen, spanned across both projectors. Make sense?
> >I suspect you'd run into these same issues getting any stereo
> >software to work, have you run any other software on your
> >system yet?
> >
> >Thanks,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> >On Wed, Mar 03, 2004 at 03:47:53PM -0500, Joe Zhou wrote:
> >> John,
> >>
> >> In fact, I do not have a NVidia graphics card, I have a Matrox
> >> Millennium P750 card. So I would like to use a CAVE- or
> >> FreeVR-enabled version of VMD. However, at the download
> >> web site, it only shows
> >>
> >> IRIX6 OpenGL (SGI IRIX 6.5 using hardware OpenGL + CAVE)
> >>
> >> is CAVE-enabled. Are there a Linux version CAVE-enabled VMD
> >> available now?
> >>
> >> Thanks a lot,
> >>
> >> Joe Zhou
> >>
> >> At 12:48 PM 3/2/2004 -0600, John Stone wrote:
> >>
> >> >Joe,
> >> > VMD only provides a single OpenGL graphics window. In order to
> >> >use passive stereo, your hardware will have to have support for this
> >> >feature, or you'll have to use a CAVE- or FreeVR-enabled version of
> >> >VMD to do this. I believe the NVidia graphics boards support what they
> >> >call "clone mode" stereo which should provide that feature. Another
> >> >option, which is a bit of a hack, is to make the VMD graphics window
> >> >full-screen and use the side-by-side stereo option, in which case you'll
> >> >probably want to direct the GUI to a different display (see the
> >VMDGDISPLAY
> >> >environment variable discussed in the User's guide....)
> >> >
> >> >Thanks,
> >> > John Stone
> >> > vmd_at_ks.uiuc.edu
> >> >
> >> >On Tue, Mar 02, 2004 at 01:28:17PM -0500, Joe Zhou wrote:
> >> >> Hi John,
> >> >>
> >> >> Thanks for your prompt reply. However it still does not work.
> >> >> I set the VMDPREFERSTEREO option, started VMD, and used the
> >> >> Display->Stereo->Crystaleyes option, but the left-eye image and
> >> >> right-eye image are still in the same vmd window. I think what I need
> >is
> >> >> two separate windows, one shows left-eye image, the other shows
> >> >> the right-eye image, then I can use two projectors(with polarized
> >filter)
> >> >> to project those two images into one screen to get a passive 3D
> >> >> stereo image.
> >> >> Is it possible to configure VMD to do it?
> >> >>
> >> >> Thanks a lot,
> >> >>
> >> >> Joe Zhou
> >> >>
> >> >> At 06:54 PM 3/1/2004 -0600, John Stone wrote:
> >> >>
> >> >> >Oh,
> >> >> > I forgot to mention, use the Display->Stereo->Crystaleyes option as
> >> >well,
> >> >> >once you're sure that you've set the VMDPREFERSTEREO option.
> >> >> >
> >> >> > John Stone
> >> >> > vmd_at_ks.uiuc.edu
> >> >> >
> >> >> >On Mon, Mar 01, 2004 at 05:18:06PM -0500, Joe Zhou wrote:
> >> >> >> Hi,
> >> >> >>
> >> >> >> I have a linux machine (Linux version 2.4.20-8) with a dual video
> >> >output
> >> >> >> graphic
> >> >> >> card. I would like to run VMD 1.8.2 to show passive stereo 3D
> >models
> >> >on
> >> >> >one
> >> >> >> screen
> >> >> >> with two projectors. Each channel supports one projector for each
> >eye.
> >> >> >How
> >> >> >> can I
> >> >> >> configure VMD to show the left-eye image and right-eye image in
> >> >different
> >> >> >> channels?
> >> >> >>
> >> >> >> Thanks a lot,
> >> >> >>
> >> >> >> Joe Zhou
> >> >> >>
> >> >> >
> >> >> >--
> >> >> >NIH Resource for Macromolecular Modeling and Bioinformatics
> >> >> >Beckman Institute for Advanced Science and Technology
> >> >> >University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
> >> >> >Email: johns_at_ks.uiuc.edu Phone: 217-244-3349
> >> >> > WWW: http://www.ks.uiuc.edu/~johns/ Fax: 217-244-6078 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
University of Illinois, 405 N. Mathews Ave, Urbana, IL 61801
Email: johns_at_ks.uiuc.edu                 Phone: 217-244-3349              
  WWW: http://www.ks.uiuc.edu/~johns/      Fax: 217-244-6078