Tag Archives: extension

ATI Catalyst 8.3: OpenGL Extensions

[French] Voici la liste des extensions OpenGL supportées par les pilotes Catalyst 8.3. Il y en a 96.
[/French] [English] Here is the list of OpenGL extensions supported by Catalyst 8.3 drivers. There are 96 extensions.
[/English]
  • Drivers Version: 8.471.0.0 – Catalyst 08.3
  • ATI Catalyst Version String: 08.3
  • ATI Catalyst Release Version String: 8.471-080225a1-059746C-ATI

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New NVIDIA OpenGL Extensions Headers

The new OpenGL headers files contain new extensions stuff. You can download them from… just a second, I start GPU Caps Viewer and… okay I got it :thumbup: : from developer.nvidia.com/object/nvidia_opengl_specs.html.

But there are a couple of weird things:

1 – the glext.h version is 28 (#define GL_GLEXT_VERSION 28). The version I use to compile the oZone3D engine renderer is the 29. And I use this header since more than one year…

2 – the glext.h header does not compile with vc6 (yes I still use visual studio 6!) because of the GL_EXT_timer_query extension. Here is the origianl piece of code you can find in glext.h:

/*
* Original code - does not compile with vc6.
*/
#ifndef GL_EXT_timer_query
typedef signed long long GLint64EXT;
typedef unsigned long long GLuint64EXT;
#endif

and here is the code I updated for visual c 6:

/*
Modified code for oZone3D engine - compile with vc6
*/
#ifndef GL_EXT_timer_query
	#ifdef _WIN32
		typedef signed __int64 GLint64EXT;
		typedef unsigned __int64 GLuint64EXT;
	#else
		typedef signed long long GLint64EXT;
		typedef unsigned long long GLuint64EXT;
	#endif
#endif

I wonder if the original glext.h compiles with vc7 or vc8. If anyone has the answer, feel free to contact me…


NVIDIA OpenGL Extension Specifications

Finally NVIDIA releases the specs of the new OpenGL extensions that come with the gf8800. Great news! :thumbup:

These specs are very important for us, poor graphics developers, in order to update our software with the latest cool features. So among these specs, there is the GL_EXT_draw_instanced that allows to do geometry instancing. Another extension is WGL_NV_gpu_affinity. This ext allows to send the gfx calls to a particular GPU in multi-gpus system. Should be cool to see how a 7950GX2 behaves. The GL_EXT_timer_query ext provides a nano-second resolution timer to determine the amount of time it takes to fully complete a set of OpenGL gfx calls. There are still so many cool extensions. As soon as I get a 8800 board, I’ll made a little tutorial to cover these cool extensions.