VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Mon Jun 24 2002 - 11:35:41 CDT

Dear Johannes,
  Great that you got the OpenGL version to work.
We're still working on the Amber stuff, we've been completely
swamped recently and are still trying to nail down a bunch of changes
needed in the Amber code. I'll let you know as soon as the fixes are
in. A bunch of people want the Amber stuff fixed, so believe me, we're
working on it, we're just not done yet.

  John

On Mon, Jun 24, 2002 at 06:29:12PM +0200, Johannes von Langen wrote:
> Hi John,
>
> I tried the opengl version of 1.8a16 with the xig xserver and it works!
> Maybe, because I remove the mesa-libs for the x-server although the 1.7
> Mesa version still works.
>
> Did you have a chance to look over the amber6 trajectory-files I send
> you a couple of days ago? As I really like vmd, it would be great, if
> you find a way to fix this problem (1.8a16 has still got problems
> reading amber6 trajectory files).
>
> Thanks,
> Johannes
>
> John Stone wrote:
> >
> > Hi,
> > We haven't made any significant changes to the quad-buffered stereo
> > code in VMD (aka "CrystalEyes") for quite a while. The only obvious
> > culprite I can think of is that the new versions of VMD might be more
> > agressive in trying to find an X visual for OpenGL rendering, and is missing
> > the particular stereo visual that your XIG server is providing.
> > If you can tell me what display mode your XIG server allows stereo in,
> > and what bit-depths it provides for color buffers, Z-buffer, and stencil
> > buffer, that would help. I suspect that your problem may be due to VMD
> > requesting a stencil buffer in the new version, which it didn't do in the
> > old versions. Your XIG server may be providing the stencil buffer at
> > the cost of not providing stereo, which would be unfortunate. Anyway,
> > if you can tell me more about what your X server is supporting, I can
> > add some code so that VMD will try to get a mode that works on your
> > system.
> >
> > Thanks,
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> > On Mon, Jun 24, 2002 at 01:47:02PM +0200, Johannes von Langen wrote:
> > > Dear vmd-users,
> > > dear John,
> > >
> > > I am using one of those cheap shutterglases (elsa Revelator) on Linux
> > > with a Matrox G450 and the xserver provided by XIG (www.xig.com) - this
> > > has been working really good with the 1.7b1 Mesa release (allthou you
> > > have to uninstall the Mesa libs for the xserver to work ?!?).
> > >
> > > Unfortunately, on 1.8a16, when I try to switch to "CrystalEyes", I only
> > > get an Above/Below - stereo ?
> > >
> > > Any ideas?
> > >
> > > Best regards
> > >
> > > Johannes
> > > --
> > > Johannes von Langen langen_at_imb-jena.de
> > > Institut fuer Molekulare Biotechnologie
> > > Beutenbergstrasse 11, Jena Tel.: +49-3641-65-6213
> > > Postfach 100 813, D-07708 Jena, Germany Fax: +49-3641-65-6210
> >
> > --
> > 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
>
> --
> Johannes von Langen langen_at_imb-jena.de
> Institut fuer Molekulare Biotechnologie
> Beutenbergstrasse 11, Jena Tel.: +49-3641-65-6213
> Postfach 100 813, D-07708 Jena, Germany Fax: +49-3641-65-6210 

-- 
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