VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Jul 31 2009 - 10:41:30 CDT

Hi,
  The behavior of the points representation depends on what GPU you're
using. The poorest capability GPUs will indeed render points as squarish
blocks as you increase the size. Higher quality GPUs will render them
as round solid filled circles as they get larger. My suggestion is to
get a better GPU. From your note, I'm assuming that you may have
an Intel IGP type chipset or something similar, or that you haven't
installed a proper OpenGL driver for whatever GPU you do have.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Fri, Jul 31, 2009 at 02:58:27PM +1200, Srikanth Dhondi wrote:
> Hi there,
>
> I am using VMD 1.8.6 on Ubuntu 8.04. I have difficulty visualizing 2D simulations with Graphical representation option as Points.
> When I load the xyz file with the above mentioned options when the point size is 1 some of the particles just don't appear on the
> visualization window (Screenshot 1). As I increase the size the particles take squarish shape rather than circular (Screenshot 2).
> I have used VMD before on other Linux OS didn't had this problem. CPK style works fine again. If anyone can give any suggestions
> on this I would be grateful.
>
> Srikanth 

-- 
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