VMD-L Mailing List

From: Dan Strahs (dstrahs_at_pace.edu)
Date: Tue Sep 20 2005 - 11:13:58 CDT

Hi:

I am having a problem with coloring my MSMS-generated surface by
electrostatic potential. I have APBS installed; in the potential file I've
uploaded, I know that the maximum/minimum run from approx. -1500 to +1000.
Yet my surface remains stubbornly white. I've loaded the potential as a DX
format, I've tried both the graphics trajectory tab and the "color
scale method RWB" "color scale min -5.0" "color scale max 5.0": no change.
Altering the range from -0.001/0.001 to -1500/1000 has no effect.

I've enabled the 3d_accelerator: I have Dell GX270 with an Intel 82865G
chipset on the motherboard. Since I'm running Linux (RH9), I'm using
XFree86-4.3.0-2.90.55. I have DRI enabled with the i830 driver - the i830
kernel module is loaded.

VMD starts with:
        Info) Multithreading available, 1 CPU detected.
        Info) OpenGL renderer: Mesa GLX Indirect
        Info) Features: RN MTX
        Info) GLSL rendering mode is NOT available.
        Info) Textures: 2-D (2048x2048), Multitexture (6)

Is there some clue here about what's happening? I've uploaded the makefile
output from the VMD and plugins compile (with configure options LINUX
OPENGL FLTK TK IMD TCL PTHREADS ACTC PYTHON NUMPY) at these links:
http://storage.pace.edu/DStrahs/Research/make.log?uniq=-o8hxtn
http://storage.pace.edu/DStrahs/Research/log.LINUX?uniq=-o8hxts

I would be grateful for any help (other than recommending a different
graphics card).

Dan Strahs