VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Wed Oct 23 2002 - 10:07:15 CDT

Hi Marc,
  Not all of the NVidia cards behave the same way with respect to
antialiasing. The GeForce 3 seems to behave more like a real workstation,
in that it allows you to enable or disable antialiasing on the fly.
The GeForce 2 and the MX series are less dynamic, they only seem to
enable antialiasing if you set environment variables prior to starting
VMD, and then once enabled, they do not allow VMD to turn it back off.
This appears to be something about the way their hardware or drivers
work. Anyway, if you read the NVidia driver README file, they describe
the environment variables you need to set to turn on antialiasing, the
values are card-specific, so you'll need to look up the value that
corresponds to the right mode for your card.

Thanks,
  John Stone
  vmd_at_ks.uiuc.edu
  
On Wed, Oct 23, 2002 at 02:45:22PM +0100, Marc Baaden wrote:
>
> Hi,
>
> what is necessary to have the antialiasing option working in VMD
> (I am using the experimental 1.8a28). The AntiAliasing option is
> grayed out.
> Is it related to the
>
> >>Info) Multisample antialiasing buffer is NOT available.
>
> message that I get on VMD startup ?
> I am quite sure that my graphics card should support it. It is a
> nVidia Geforce 4GO 440
>
> At home I have a Geforce3 and it is working.
>
> Thanks in advance,
> 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