From: Axel Kohlmeyer (akohlmey_at_vitae.cmm.upenn.edu)
Date: Thu Feb 23 2006 - 22:47:20 CST

On Fri, 24 Feb 2006, Xifang Wang wrote:

XW> Thanks, everyone, for the advice!
XW> 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?
XW> Thanks again.
XW> Xifang

try the latest beta version. it has some workarounds
for problems with the ATI drivers.

axel.

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