VMD-L Mailing List

From: Oliver Beckstein (oliver_at_biop.ox.ac.uk)
Date: Mon Feb 07 2005 - 10:03:34 CST

Hi,

I would like to create grasp-like electrostatic maps. I produced a pot.dx
potential map with apbs and tried to colour a 'surf' or 'msms' surface
using the new volume colouring feature. However, the surface stays
uniformly black although I would expect some variation along
red-white-blue (I think this is set with the colour scale.)

Also, volume slice gives me a black surface. The iso contour
representation works as expected, though.

Do I need OpenGL shading for this to work?

When I try Display>Render Mode>GLSL I get "Warning) OpenGL Programmable
Shading not available."

(I have

VMD 1.8.3b1

Info) OpenGL renderer: Quadro4 900 XGL/AGP/SSE
Info) Features: STENCIL MSAA(4) RN MDE CVA MTX TCM PP PS GLSL SHO SHV
Info) OpenGL Programmable shading is NOT available.
Info) Textures: 2-D (4096x4096), 3-D (512x512x512), Multitexture (4)

Fedora Core 3, xorg (nothing special in xorg.conf),
NVIDIA-Linux-x86-1.0-6629 )

Thanks,
Oliver 

-- 
Oliver Beckstein * oliver_at_biop.ox.ac.uk
  http://sansom.biop.ox.ac.uk/oliver/