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

Graphics and GPU Programming Programming OpenGL

Started by jocke October 24, 2001 01:33 AM

3 comments, last by jocke 22 years, 6 months ago

122

Author

October 24, 2001 01:33 AM

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.

Maximus

124

October 24, 2001 01:39 AM

Look into the wglSwapIntervalEXT extension

-----------------------"When I have a problem on an Nvidia, I assume that it is my fault. With anyone else's drivers, I assume it is their fault" - John Carmack

jocke

122

Author

October 24, 2001 11:54 AM

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

Scarab0

122

October 24, 2001 01:04 PM

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.

Dirk =[Scarab]= Gerrits

jocke

122

Author

October 24, 2001 01:59 PM

Thanks for the help