VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Oct 23 2003 - 16:14:49 CDT

Hi,
  The Axes being disabled are really only a temporary workaround,
as other things can also cause the slowdown, but I've already rewritten
the sphere rendering code in VMD to avoid this problem in the next
version of VMD (1.8.2), so the next version will perform much better
in call cases, and having the Axes on or off should not trigger this
performance problem ever again.

Thanks,
  John

On Thu, Oct 23, 2003 at 11:12:39AM -0700, Charles McCallum wrote:
> I've always had the axes disabled, so I never noticed the slowdown.
> On my 1.25GHz AlBook the speed is quite nice and smooth (due mostly to
> the 9600 video card, no doubt!).
>
> Cheers,
>
> Mike
> On Thursday, Oct 23, 2003, at 05:00 US/Pacific, Dafydd Jones wrote:
>
>
> > Hi,
> >  I have recently upgraded my machine from a G3 400 MHz Powerbook to
> > a G4 1GHz Powerbook and now VMD 1.8.1 (and 1.8) runs very very
> > slowly on my new machine. Does anybody have any idea why this is?
> > Both machines are running 10.2.8. The OpenGL renderer on my present
> > machine used by VMD is ATI Radeon 9600 OpenGL Engine whereas on my
> > older machine it is Ati Rage 128 Pro OpenGL engine. My OpenGL
> > framework on the G4 is OpenGL 1.2.4.10.0 as it is on my old
> > machine.
> >
> > Thanks,
> >
> > --
> > Dafydd Jones PhD (Cantab)
> > School of Biosciences
> > Biosi-2
> > Cardiff University
> > Museum Ave.
> > Cardiff CF10 3US
> > UK
> >
> > Webpage: www.cf.ac.uk/biosi/research/molecular/staff/djones.html
> > Tel. Office  +44 (0)29 2087 4290
> > Mobile        +44 (0)7980 755607
> >
> >
> --
> C. Michael McCallum
> http://chem.cop.uop.edu/cmmccallum.html
> Associate Professor
> Department of Chemistry, UOP
> mmccallum .at. pacific .dot. edu (209) 946-2636 v /
> (209) 946-2607 fax
>
> 

-- 
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