Hi Thijs,
GL_EXT_transform_feedback is supported on OSX, not
GL_NV_transform_feedback. There are a few differences between the 2
extensions.
http://homepage.mac.com/arekkusu/bugs/GLInfo.htmlhttp://www.opengl.org/registry/specs/EXT/transform_feedback.txt
wes
On Sun, May 4, 2008 at 12:10 PM, Thijs Koerselman
<email@hidden> wrote:
> Update:
>
> I've successfully ported the transform_feedback_fractal example from the Cg
> SDK to work in XCode, but it won't run since it doesn't pass the GLEW
> extension test. GL_NV_gpu_program4 and GL_NV_transform_feedback are not
> supported by my driver:(
>
> I guess that's the end of it. I'm out of ideas.
>
> Someone please prove me wrong and tell me transform feedback is supported
> by AGL / 8800GT.
>
> It's a bit of a disappointment to get a new graphics card and find out that
> not all features are supported.
>
> Thijs
>
>
> On Sun, May 4, 2008 at 6:20 PM, Thijs Koerselman <email@hidden>
> wrote:
> > I did some more research and checked the extensions. It seems that I need
> the following extensions:
> >
> > GL_EXT_texture_array
> > GL_EXT_transform_feedback
> >
> > The first, I suspect, is a windows only thing atm. I can't find it
> anywhere for mac. I was trying to port code that I found for windows.
> >
> > The transform_feedback seems to be supported by my driver according to the
> gl extension viewer. When I use the constant and its related functions in my
> code Xcode complains that they're not defined. I also added GLEW, but that
> doesn't seem to help.
> >
> > Now I'm about to try Cg instead of GLSL...
> >
> > If anybody got one of these extensions working on Mac, I'd love to hear
> about it.
> >
> > Cheers,
> > Thijs
> >
> >
> >
> >
> >
> >
> >
> > On Sun, May 4, 2008 at 12:10 PM, Kamil Rocki <email@hidden>
> wrote:
> >
> > > Hi, well it depends on the driver also, which extensions are supported.
> > > Here' s an app http://www.realtech-vr.com/glview/ which can help You
> identifying them.
> > >
> > >
> > >
> > > On 2008-05-04, at 13:02, Thijs Koerselman wrote:
> > >
> > >
> > > >
> > > >
> > > > Hi list,
> > > >
> > > > I'm trying out some new OpenGL functionality but I'm getting stuck on
> extensions which seem to be unsupported by AGL:
> > > >
> > > > Texture arrays: GL_TEXTURE_2D_ARRAY_EXT symbol is undefined.
> > > >
> > > > Transform Feedback: all functions like glBeginTransformFeedbackNV()
> seem to be missing.
> > > > GL_TRANSFORM_FEEDBACK_BUFFER_EXT is defined.
> > > >
> > > > Am I missing something?
> > > >
> > > > I'm using a 8800GT (1st gen) with OS 10.5.2
> > > >
> > > > Cheers,
> > > > Thijs
> > > >
> > > >
> > > >
> > >
> >
> >
>
>
>
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