VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Feb 08 2005 - 10:15:41 CST

Raymond,
  Given the complexity of the VRML file format and the fact you guys
don't have a parser that'll handle the full spec, maybe we should look
at using one of the other formats for your CAVE use? What other file formats
can your software read? I've used VMD's VRML output in several programs,
so I know it's legal VRML2. Is the software you're using home-grown stuff
or is it some commercial CAVE-based VRML model viewer?

  John Stone
  vmd_at_ks.uiuc.edu

On Tue, Feb 08, 2005 at 11:43:40AM +0100, Raymond de Vries wrote:
> John,
>
> Aha, I see your reason. The reason I asked is because I have such a
> simple-minded parser ;-) and I would like to have a simple geometry
> conversion so that I can easily create presentations for our cave. Do
> you know a converter/3d modeller that can load your vrml2 files okay?
> I've tried a couple without succes...
>
> thanks a lot
> Raymond
>
>
> John Stone wrote:
>
> >Raymond,
> > VMD uses the PROTO nodes to significantly decrease the size of
> >the generated VRML2 files. Without them, the scene files can be
> >several hundred megabytes in no time. There's no way to disable
> >the use of PROTO nodes at runtime, but you could easily modify
> >the VMD source code, and replace the PROTO usage by actual
> >in-place macro expansions instead. That'd give you a completely
> >flattened file that will work with simple-minded VRML2 parsers.
> >
> > John Stone
> > vmd_at_ks.uiuc.edu
> >
> >On Mon, Feb 07, 2005 at 11:45:09AM +0100, Raymond de Vries wrote:
> >
> >
> >>Hi,
> >>
> >>I was wondering whether it is possible or not it is possible to make a
> >>vrml2 export without the PROTO. So just with simple geometry and
> >>material (I see that the PROTO is used, at least, for geometry and
> >>material in my exports).
> >>
> >>thanks
> >>Raymond
> >>
> >>
> >>
> >>--
> >>
> >>Raymond de Vries, VR Specialist
> >>Insight Services
> >>SARA Computing and Networking Services, PO Box 94613, 1090 GP AMSTERDAM
> >>email: raymond_at_nospam.sara.nl Phone +31-20-5923000 Fax +31-20-6683167
> >>
> >>
> >>
> >>
> >
> >
> >
>
>
> --
>
> Raymond de Vries, VR Specialist
> Insight Services
> SARA Computing and Networking Services, PO Box 94613, 1090 GP AMSTERDAM
> email: raymond_at_nospam.sara.nl Phone +31-20-5923000 Fax +31-20-6683167
>
> 

-- 
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