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How to turn of "wait for vertical retrace" (opengl)


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Posted 23 October 2001 - 07:33 PM

How do i disable the wait for vertical retrace in OpenGL? I have a Voodoo2 card and the opengl driver i have is not a "true" opengl driver so there is no settings in the display properties dialog that allow me to turn it off. So i was wondering if there is some opengl command i can use to turn it off. Anyone have a solution to this? PS: I want to turn of the wait for vertical retrace so i can see the "real" frame-rate of my program.

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Posted 23 October 2001 - 07:39 PM

Look into the wglSwapIntervalEXT extension

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Posted 24 October 2001 - 05:54 AM

I can''t find that function anywere. In what file
is supposed to be in?

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Posted 24 October 2001 - 07:04 AM

It''s not a function that is in OpenGL 1.1, it''s an extension, as Maximus said. I suggest you check out:
http://www.opengl.org/developers/faqs/technical/extensions.htm to read more about extensions. You can also download the wglext.h file from that page, which makes using WGL extensions easier, as well as header files that do that for the other extensions.

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Posted 24 October 2001 - 07:59 AM

Thanks for the help




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