VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Feb 24 2006 - 13:08:51 CST

Hi,
  The VMD startup messages on your machine don't include any texturing
lines. This seems to indicate that (unless you just missed them when
pasting them into this mail) your video card has texturing disabled for
some reason. Can you check again, you're looking for lines like this:
  Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)

The critical item there is the max 3-D texture size:
   3-D (512x512x512)

If you don't have that line, then this would explain the problem you're
having. You may wish to double check that your video driver is up to date.

  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Feb 24, 2006 at 01:42:50AM +0000, Xifang Wang wrote:
> Thanks, everyone, for the advice!
> My system is a Dell Dimension DIM9100 with the P4 CPU @ 3.20 GHz that runs windows XP. The VMD startup info was attached below. If it is a graphic card/ driver issue, what do I need to replace to make it work?
> Thanks again.
> Xifang
>
> Info) VMD for WIN32, version 1.8.3 (February 15, 2005)
> Info) http://www.ks.uiuc.edu/Research/vmd/
> Info) Email questions and bug reports to vmd_at_ks.uiuc.edu
> Info) Please include this reference in published work using VMD:
> Info) Humphrey, W., Dalke, A. and Schulten, K., `VMD - Visual
> Info) Molecular Dynamics', J. Molec. Graphics 1996, 14.1, 33-38.
> Info) -------------------------------------------------------------
> Info) OpenGL renderer: RADEON X300 x86/SSE2
> Info) Features: STENCIL MDE CVA PP PS GLSL(OVF)
> Info) OpenGL shader linkage log:
> Info) Link successful. The GLSL vertex shader will run in software - unsupp
> orted language element used. The GLSL fragment shader will run in software - uns
> upported language element used.
> Info) OpenGL shader linkage log:
> Info) Link successful. The GLSL vertex shader will run in software - unsupp
> orted language element used. The GLSL fragment shader will run in hardware.
> Info) Full GLSL rendering mode is available.
> Info) Spaceball driver not installed. Spaceball interface disabled.
> Info) No joysticks found. Joystick interface disabled.
> Found 44 plugins or data handlers in directory
> 'C:/Program Files/Science/VMD/plugins/WIN32/molfile'.
> vmd >
>
> -----Original Message-----
> From: Axel Kohlmeyer [mailto:akohlmey_at_vitae.cmm.upenn.edu]
> Sent: Thursday, February 23, 2006 01:55 AM
> To: 'Xifang Wang'
> Cc: vmd-l_at_ks.uiuc.edu
> Subject: Re: vmd-l: Mapping electronic potential to surface
>
> On Thu, 23 Feb 2006, Xifang Wang wrote:
>
> XW> Hi,
> XW>
>
> XW> I'm a novice in this. I know this question (or ones similar) was
> XW> posted many times. I looked all up, tried them , and still could not
> XW> get it to work properly. Here's the difficulty: I had no trouble
> XW> generating the .dx file and importing it into VMD using read_dx.
> XW> Isosurface works well. But when I tried to use the volume data to
> XW> color the surface by "Volume", I got invariably a uniform white
> XW> color. I thought maybe the electronic potential was not calculated
> XW> propperly. So I tried one of the demos, and I got the same uniform
> XW> color. Could some advise me how to correct it?
>
> the white surface is most likely due to the fact that your graphics
> card and/or its driver do not support surface texturing. please post
> the startup message from your VMD command window.
>
> axel.
>
> XW> Thanks a lot.
> XW> Xifang
> XW>
> XW>
> XW>
>
> --
> =======================================================================
> Axel Kohlmeyer akohlmey_at_cmm.chem.upenn.edu http://www.cmm.upenn.edu
> Center for Molecular Modeling -- University of Pennsylvania
> Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
> tel: 1-215-898-1582, fax: 1-215-573-6233, office-tel: 1-215-898-5425
> =======================================================================
> If you make something idiot-proof, the universe creates a better idiot.
>
>
> 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
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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