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Re: unsupported extensions?

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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