[vtk-developers] Rendering of vtkPolyData broken on Nvidia systems

[Aashish Chaudhary]

On Fri, Jun 22, 2012 at 12:30 PM, Cory Quammen <cquammen at cs.unc.edu> wrote:

> Sigh. Nothing like removing useful features from a widely used API for
> no good (in my mind) reason.
>
> This page has information about the ARB_compatibility extension as
> implemented by NVIDIA:
>
> http://developer.nvidia.com/opengl-driver
>
> Perhaps VTK needs to load this extension to maintain the use of display
> lists?
>

That might be. What is interesting that if driver load the core profile
then I would expected that nothing shows up. In your app can you try to
load this extension using vtkOpenGLExtensionManager?


>
> Cory
>
> On Fri, Jun 22, 2012 at 11:58 AM, Oleg Koren <koren at curefab.com> wrote:
> > Hello,
> >
> > I think, now I know the root of the problem. Great thanks for the
> suggestion
> > to run an OpenGL logger. My log boils down to the following:
> >
> > glColor3f(1.0f, 0.0f, 0.0f);
> > glDeleteLists(1,1);
> > glGenLists(1);
> > glNewList(1,GL_COMPILE);
> > glDisable(GL_LIGHTING);
> > glBegin(GL_LINE_STRIP);
> >        glVertex3f(0.000000,0.000000,0.000000);
> >        glVertex3f(1.000000,0.000000,0.000000);
> >        glVertex3f(1.000000,1.000000,0.000000);
> >        glVertex3f(0.000000,1.000000,0.000000);
> >        glVertex3f(0.000000,0.000000,0.000000);
> > glEnd();
> > glEnable(GL_LIGHTING);
> > glEndList();
> > glCallList(1);
> >
> > glColor3f(1.0f, 1.0f, 0.0f);
> > glDeleteLists(2,1);
> > glGenLists(1);
> > glNewList(2,GL_COMPILE);
> > glDisable(GL_LIGHTING);
> > glBegin(GL_LINE_STRIP);
> >        glVertex3f(0.000000,0.000000,0.000000);
> >        glVertex3f(0.000000,1.000000,0.000000);
> >        glVertex3f(0.000000,1.000000,1.000000);
> >        glVertex3f(0.000000,0.000000,1.000000);
> >        glVertex3f(0.000000,0.000000,0.000000);
> > glEnd();
> > glEnable(GL_LIGHTING);
> > glEndList();
> > glCallList(2);
> >
> > and this actually doesn't work. Which is, I guess, because lists are
> > deprecated since OpenGL 3.0 and should receive very limited support by
> now,
> > if any. Removing all calls to list functions does the trick.
> >
> > That means, one should always set ImmediateModeRenderingOn on a
> > vtkPolyDataMapper. Immediate rendering mode disables OpenGL lists.
> >
> >
> > --
> > View this message in context:
> http://vtk.1045678.n5.nabble.com/Rendering-of-vtkPolyData-broken-on-Nvidia-systems-tp5714114p5714147.html
> > Sent from the VTK - Dev mailing list archive at Nabble.com.
> > _______________________________________________
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>
>
>
> --
> Cory Quammen
> Research Associate
> Department of Computer Science
> The University of North Carolina at Chapel Hill
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>


-- 
| Aashish Chaudhary
| R&D Engineer
| Kitware Inc.
| www.kitware.com
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