VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Jun 03 2004 - 15:28:50 CDT

Hi,
  It sounds like your video card can't load textures as large
as the volumetric dataset you have loaded. VMD 1.8.2 doesn't include
code to automatically downsample the dataset to something the video
card can handle, but I plan to implement this for VMD 1.8.3.
You can see what the maximum 3-D dataset your machine can handle
is by looking at the initial "3-D texture" messages printed during
the OpenGL graphics initialization in the VMD text console when
the program first starts up. If you load volume sets larger than
the max dimensions VMD prints, that'd explain your problem.
The issue varies significantly by the type of video card and
what driver you're using, so without knowing more, I don't have any
other immediate thoughts.

Thanks,
  John Stone
  vmd_at_ks.uiuc.edu

On Thu, Jun 03, 2004 at 04:16:02PM +0200, Simon Latapie wrote:
> Hi everyone,
>
> I have a little problem with VMD 1.8.2 linux binaries:
>
> I load a .cube, with a volumetric data set, and when I want to use the
> VolumeSlice representation, VMD only display a unicolor square, and
> writes the following error a lot of times:
>
> ERROR) OpenGLRenderer.C line 1494 invalid value
>
> Do you know where does it come from ?
>
> Thanks
>
> --
> Garf
> "I'm sorry, I was expecting Shadayim" --Jeff
> Coupling 

-- 
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