VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Nov 26 2002 - 13:34:38 CST

Hi,
  I made a small change to the Raster3D scene export code which
avoids the problem. The change is based on a suggestion in an
email sent to me this morning by Nicolas Le Novere.
The fix changes the Raster3D output file to use two-sided
materials for all of the VMD geometry. At first I didn't
think that this would be necessary, but after thinking of
various possible cases where people might want to render the
inside of an MSMS surface, it is clear that there isn't much
of an alternative, but I'm going to do some experiments and see
if I can make the Raster3D export do a better job. I'm testing
this all with the Raster3D 2.6e version from the Raster3D web site,
downloaded this morning.

Thanks,
  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Nov 26, 2002 at 01:11:26PM -0600, John Stone wrote:
>
> Hi Marc,
> Interestingly enough, I have now reproduced this same problem
> with a freshly built copy of Raster3D, but it does NOT occur in
> the old version of Raster3D that I had installed and have been
> testing VMD with up to this point. I will find out whether this is
> just a flipped normal problem or something more difficult to solve and
> let you guys know what is going on. In any case, it would appear that
> the r3d scene files generated by VMD don't render right with the newest
> version of Raster3D. Thanks for bringing this to our attention, I can
> probably fix this before VMD 1.8 is released, maybe even today if things
> go well.
>
> Thanks,
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Tue, Nov 26, 2002 at 05:32:44PM +0000, Marc Baaden wrote:
> >
> > Dear John,
> >
> >
> > >>> John Stone said:
> > >> Interesting, I haven't seen this before. Do you suspect its a bug in
> > >> VMD's Raster3D output, or in Raster3D itself?
> >
> > I am not sure. My suspicion would be it is the way cartoons are translated
> > into raster3d output. I have attached snapshot, raster3d rendering and input
> > to this email, so that you can actually see what I mean. I hope that is ok.
> >
> > >> Use the same resolution as the VMD OpenGL display window and you'll
> > >> have the same aspect ratio. You can set the shape of the VMD OpenGL
> > >> window (in the newest revs of VMD) with "display resize XXXX YYYY".
> >
> > OK, I see. That is neat.
> >
> > >> Sounds like your JPEG include files don't match the version of the JPEG
> > >> library on your computer. I bet if you look around you'll find multiple
> > >> copies laying around on your machine, get rid of all the old ones and/or
> > >> change the Tachyon Make-config file to use the correct include file for
> > >> the library you're linking against, and you should be in ok shape.
> >
> > OK. I'll check that.
> >
> > >> That's correct, I haven't released this new version of Tachyon yet, I'm
> > >> still finishing a few things up. I will release it by the time VMD 1.8
> > >> is finished, but there are a couple more things left to be done.
> >
> > Sure. I'm already looking forward to it :)
> >
> > >> > - how can one increase the size of the created image, especially when
> > >> > working with -nodispdev ?
> > >> Use the display resize command in VMD:
> > >> display resize XXXX YYYY
> >
> > This command seems to be the ubiquitous solution to my problems :)
> >
> > Thanks again,
> > Marc Baaden
> >
>
>
>
>
> > Dr. Marc Baaden - Laboratory of Molecular Biophysics, Oxford University
> > mailto:baaden_at_smplinux.de - ICQ# 11466242 - http://www.marc-baaden.de
> > FAX/Voice +49 697912 39550 - Tel: +44 1865 275380 or +33 609 843217
>
>
> --
> 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