Re: [ROOT] hardware acceleration/OpenGL

From: Fons Rademakers (Fons.Rademakers@cern.ch)
Date: Wed Jul 25 2001 - 11:54:56 MEST


Hi Christian,

  I also have a G400 but did not try the Utah GL libs yet. Currently
I am running XFree86  4.1.0 with RH7.1. I'll check the Utah libs.

Cheers, Fons.


On Wed, Jul 25, 2001 at 11:43:36AM +0200, Christian Holm Christensen wrote:
> Hi Fons, David and others, 
> 
> On Tue, 24 Jul 2001 19:44:42 +0200
> Fons Rademakers <Fons.Rademakers@cern.ch> wrote
> concerning ": Re: [ROOT] hardware acceleration/OpenGL":
> > Hi David,
> > 
> >    for easy distribution we link ROOT's libRGL.so statically with Mesa.
> > This is a software version which makes obviously no use of any special
> > hardware. To have ROOT use the accelerated OpenGL you'll have to rebuild
> > it from source. Make in that case sure that ./configure finds the right
> > OpenGL libs.
> > 
> > What OpenGL card are you using? I am looking for a good card myself.
> > Preferably one that works with accellerated XFree86 4.
> 
> Matrox G400 is a very good (and cheap) choice.  I myself has a Matrox
> G200 and I'm quite happy with that. 
> 
> > David Noyes wrote:
> > > 
> > > Hi,
> > > 
> > > We have OpenGL configured on a Linux box to use
> > > hardware acceleration and it works great for
> > > all programs that we try except for Root.
> > > 
> > > When we select OpenGL graphics in Root, it is
> > > very slow.  I presume this because it is using
> > > software rendering.
> > > 
> > > Has anyone gotten root to use hardware acceleration
> > > when drawing with OpenGL?
> 
> I got hardware acceleration to work on my machine 
> 
>  * Debian GNU/Linux 2.2r3 box 
>  * Linux kernel 2.2.17 SMP (I'm not sure about the revision, but
>    something like that)
>  * XFree 3.3.6 (yes, not 4.0.1)
>  * Utah GL libraries and GLX (see http://utah-glx.sourceforge.net).  
>  * Matrox G200 
> 
> On that machine, I can manipulate the NA49 geometry (as in the
> tutorials) in realtime :-) Cool!  This worked out of the box by the
> way. 
> 
> However,  trying the configuration: 
> 
>  * Redhat 6.2 
>  * Linux kernel 2.2.16 
>  * XFree 3.3.6 
>  * Utah GL libraries and GLX 
>  * Matrox G400 
> 
> does not work at all i.e., GL rendering is not working (causes the X
> server to crash in fact).  Hmm ... maybe something wrong with the
> Redhat build, who knows. 
> 
> Yours, 
> 
> Christian  -----------------------------------------------------------
> Holm Christensen                             Phone:  (+45) 35 35 96 91 
>   Sankt Hansgade 23, 1. th.                  Office: (+45) 353  25 305 
>   DK-2200 Copenhagen N                       Web:    www.nbi.dk/~cholm    
>   Denmark                                    Email:       cholm@nbi.dk

-- 
Org:    CERN, European Laboratory for Particle Physics.
Mail:   1211 Geneve 23, Switzerland
E-Mail: Fons.Rademakers@cern.ch              Phone: +41 22 7679248
WWW:    http://root.cern.ch/~rdm/            Fax:   +41 22 7677910



This archive was generated by hypermail 2b29 : Tue Jan 01 2002 - 17:50:53 MET