Pausing for video lock

it''s SwapBuffers() ( only when v-sync is enabled )

so you must disable v-sync

Ah thanks!

Anyone know how ''close you can cut it'' before calling swapbuffers? For instance at 85 Hz refresh rate that gives 11.76 ms per frame. Can I call swapbuffers() as late as 11.70, or is it safer to leave a millisecond or two of extra room? Not sure how much I can squeeze out of it without missing the vsync refresh. But with my current program I''m calling it after like 2 ms, since I hardly draw anything.

OK, what you need to do is this: look up OpenGL extensions, then try this extension: WGL_EXT_swap_control. It allows you to disable vsync, so that your program can output many more frames than the monitor's refresh rate. You don't have to wait for wglSwapBuffers() to return before creating the next frame, as you do when vsync is turned on, and this way, you never need to to worry about precisely timing your frames. The swap control extension is how commercial software achieves frame rates far in excess of any monitor refresh rate...

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[edited by - iNsAn1tY on April 26, 2003 1:56:05 PM]