OpenGL Vsync

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Hi, I have a program where I draw various things onto the screen. One of them is a fps counter. Normally, when vsync is turned on, the framerate is about 59fps. When I turn it off, it jumps to the 100-200fps range. I have set it to its default setting ("Let the 3D application decide") and I now need to know HOW TO let OpenGL decide. Is there a function I need to call? G

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 Original post by GeometrianHi, I have a program where I draw various things onto the screen. One of them is a fps counter. Normally, when vsync is turned on, the framerate is about 59fps. When I turn it off, it jumps to the 100-200fps range. I have set it to its default setting ("Let the 3D application decide") and I now need to know HOW TO let OpenGL decide. Is there a function I need to call?G
It's an extension function called wglSwapInterval.

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Yes but...
I somewhat of a new programmer and I need a specific way to do this...
I would appreciate any help anyone could give me on how exactly to do this...
G
P.S. Thanks for the response

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This is how I do it.

/*================================================================================SetVSync() : VSync on / off================================================================================*/void SetVSync(bool pSync){	typedef bool (APIENTRY *PFNWGLSWAPINTERVALFARPROC)(int);	PFNWGLSWAPINTERVALFARPROC wglSwapIntervalEXT = 0;	wglSwapIntervalEXT = (PFNWGLSWAPINTERVALFARPROC)wglGetProcAddress("wglSwapIntervalEXT");	if( wglSwapIntervalEXT )		wglSwapIntervalEXT(pSync);}

Then call SetVSync( true or false ); in the Initialise process.

Good luck, Cheers!

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Great, this looks like exactly what I need. However, I don't know C++ very well, so I can't tell exactly what that's doing. If you could tell me which functions to call in what order, I could probably figure it out.
G

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