VMD-L Mailing List

From: Guo Zhi (gzgzgz_at_gmail.com)
Date: Mon Aug 28 2006 - 21:02:46 CDT

Thanks, John, I guess that is the problem. I will try to update my driver.

2006/8/29, John Stone <johns_at_ks.uiuc.edu>:
>
>
> Hi,
> Which NVidia driver version are you using? The problem of course is
> that there's a bug in the driver, but it would be useful to know which
> driver that is. My guess is that your driver may be just a bit too
> old and doesn't correctly support the "glFrontFacing" fragment state
> variable.
> Unfortunately, some of the newest drivers are broken in new and different
> ways. I'm using the NVidia windows driver version 84.12 (march 2006)
> on my test machine and it works correctly on all counts.
>
> If you prefer not to change your driver, you could also use the older
> VMD GLSL shaders from VMD 1.8.4, but the quality of the output from the
> new shader is much better (due to the use of glFrontFacing rather than
> an old hack I used to use to get around broken video drivers...)
>
> John Stone
> vmd_at_ks.uiuc.edu
>
> On Mon, Aug 28, 2006 at 09:57:39PM +0800, Guo Zhi wrote:
> > Dear John:
> > I just downloaded VMD 1.8.5, but I can not use its GLSL
> rendering
> > function... the starting messages were shown as the following:
> > Info) VMD for WIN32, version 1.8.5 (August 25, 2006)
> > 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: GeForce 6200 TurboCache(TM)/PCI/SSE2
> > Info) Features: STENCIL MDE CVA MTX NPOT PP PS GLSL(OVF)
> > Warning) GPU driver failed to compile shader:
> > Warning) C:/Program Files/University of Illinois/VMD/shaders/vmd
> > Warning) This GPU/driver is buggy, or doesn't fully implement GLSL.
> > Warning) Set environment variable VMDGLSLVERBOSE for more info.
> > Info) GLSL rendering mode is NOT available.
> > Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)
> >
> > It seems that something is wrong with my graphic driver, but I
> > have never changed my graphic card driver.
> > VMD 1.8.4 works fine. I wonder is it possible for me
> to utilize
> > VMD 1.8.5's new feature withou having to go back for an older version of
> > graphic card driver??
> >
> > Thanks
> >
> > --
> > From Shark
> > 撰信人：郭治
>
> --
> 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
> 

-- 
From Shark
撰信人：郭治