VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Mar 09 2007 - 09:42:39 CST

Pawel,
  Yes, the VolumeSlice representation has been available for some time
and should work fine so long as you have a video card that supports
3-D (volumetric) texturing. You can check this by reading the VMD OpenGL
related startup messages. You should see a texturing info line like
the one I've pasted below:
  Info) OpenGL renderer: ZFB, VIS
  Info) Features: STENCIL MSAA(16) MDE MTX GAS
  Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)

The important part of that status line is: "3-D (512x512x512)"

What video chipset are you using? Have you checked to make sure
that you're using the latest video driver available for your hardware?

  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Mar 09, 2007 at 04:27:17PM +0100, Pawel Wielgus wrote:
> Dear VMD Users,
>
> may I ask you a question concerning the visualization of volumetric data?
> I have a simple example of density for CH4 (just for graphical testing)
> in a Gaussian03 cube format. The volumetric data is read properly, and
> using 'Drawing method = Isosurface' I can easily get the density.
>
> But as only I switch to 'Drawing method = VolumeSlice' everything
> disapears. As far as I know the volume slices (along cartesian axis) are
> possible with VMD-1.8.5.
>
> What wrong am I doing ? Should I switch any options on ? Could you give
> me any hint?
>
>
> Regards
>
>
> Pawel Wielgus
>
> 

-- 
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