Re: [Mesa3d-users] Re: Mesa3d-users digest, Vol 1 #9 - 2 msgs

[Brian P. <br...@pr...>]

Alberto Farré wrote:
> 
> mes...@li... wrote:
> 
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> > Today's Topics:
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> >   1. Too slow... (Dmitry Samoyloff)
> >   2. Re: Too slow... (physic)
> >
> > --__--__--
> >
> > Message: 1
> > Date: Wed, 05 Apr 2000 04:41:04 +0400
> > From: Dmitry Samoyloff <sin...@ac...>
> > Organization: Actor
> > To: mes...@li...
> > Subject: [Mesa3d-users] Too slow...
> >
> > Hello!
> >
> > I have a problem with Mesa-3.1(3.2) software rendering on Linux. My
> > application works fine on 3.0 but very slow on 3.1(3.2). I can't find a
> > cause of this problem. Can somebody help me?
> >
> > Thank you very much!
> >
> > --__--__--
> >
> > Message: 2
> > Date: Tue, 4 Apr 2000 20:50:41 -0500 (CDT)
> > From: physic <ph...@te...>
> > To: Dmitry Samoyloff <sin...@ac...>
> > cc: mes...@li...
> > Subject: Re: [Mesa3d-users] Too slow...
> >
> > Have you tried the demos that come with the different versions.  The demos
> > that are fairly simple will help determine if it is some rendering path in
> > your code that got slowed down (or probably fully implemented) or
> > something more related to how they were built.
> >
> > On Wed, 5 Apr 2000, Dmitry Samoyloff wrote:
> >
> > > Hello!
> > >
> > > I have a problem with Mesa-3.1(3.2) software rendering on Linux. My
> > > application works fine on 3.0 but very slow on 3.1(3.2). I can't find a
> > > cause of this problem. Can somebody help me?
> > >
> > > Thank you very much!
> > >
> > > _______________________________________________
> > > Mesa3d-users mailing list
> > > Mes...@li...
> > > http://lists.sourceforge.net/mailman/listinfo/mesa3d-users
> > >
> >
> > --physic
> > ph...@te...
> >
> > --__--__--
> >
> > _______________________________________________
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> > Mes...@li...
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> >
> > End of Mesa3d-users Digest
> 
> I had the same problem and  I needed to remove the following lines:
> glEnable(GL_NORMALIZE)
> glPolygonMode(GL_BACK,GL_POINT)
> 
> Does it fix your problem?
> Does anyone known why I had to remove those lines to rescue normal speed in
> application?

The slowdown of glPolygonMode on the 3dfx is a known problem, and
in the bug database.  I don't know when it'll be fixed.

There shouldn't be a really significant slowdown from enabling
GL_NORMALIZE.

-Brian