Hi Folks,
did you get a sample program using plain ARB_fragment_programs running?
We experience some problems with the lates ATI drivers on Linux here.
Every time a glGenProgram is issued, any application just crashes.
Manfred.
On Tue, Nov 09, 2004 at 04:25:50PM -0600, Dirk Reiners wrote:
>
> Hi Andreas,
>
> On Fri, 2004-10-29 at 02:56, Andreas Langs wrote:
> > Hi,
> >
> > I have a little problem with corrupted geometry in conjunction with the
> > dlistcache on ATI graphics cards.
> >
> > I have a scene where parts of the geometry is modified every frame (its a
> > puppet with a physicaly base cloth-simulation).
> > For these geometry nodes I set the dlistcache to false as it is recommended
> > in the tutorial to speed up things.
>
> Yup, that's definitely true.
>
> > This works flawless on Nvidia Cards but on ATI cards the whole programm
> > crashes when i also use Cg Shaders.
>
> Which profile are you using to get them to run?
>
> > When I deaktivate the Shaders, the
> > program runs fine but the geometry nodes with dlistcache=false are
> > corrupted, eg. only one half of the jacked (with the cloth-simulation) of
> > the pupped is visible.
>
> That's weird.
>
> > Another corrupted geometry are wires which came from some point above the
> > puppet an should end on some hooks placed on the puppet. But the wires are
> > going down and meet on some point below the puppet.
> > I have these effect on various ATI cards like a Radeon 9700, 9800 Pro, 7500
> > mobile and with various drives, eg. 4.8 and the current Version.
> > I test this under Windows with the OpenSG CVS Version from the 27.11.
> > compiled with Visual Studio .NET 2003.
> >
> > If I turn on the dlistcache for all geometry nodes it works also on the
> > ATI-cards but only with a client window.
> > But when I use a MultiDisplayWindow for a stereo-projection i also got the
> > corrupted geometry, no matter whether or not I set the dlistcache to false
> > or true.
>
> Very weird. I've heard from some people that ATI drivers are not that
> stable, even though they have worked fine for me in the past.
>
> You can try to disable the extensions that define geometry specification
> by setting the OSG_IGNORE_EXTENSIONS environment variable or calling
> OSG::Window::ignoreExtension() before opening the Windows. The possible
> extensions are GL_EXT_compiled_vertex_array and
> GL_EXT_draw_range_elements. Maybe the ATI drivers have problems with
> these, which are not apparent in DList mode.
>
======================================================================
Manfred Weiler [EMAIL PROTECTED]
Visualisierung und Interaktive Systeme Telefon: 0711/7816-208
Universitaet Stuttgart, IfI FAX: 0711/7816-340
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