VSync with win32
February 23, 2000 03:52 PM
Does anyone know of a way to wait for the vertical retrace using the win32 api other than using flip()? I am using a backbuffer, but it seems that on some cards (like mine) flip() doesn''t vsync. Any ideas?
Wraith
cdickinson@scu.edu
[email=cdickinson@scu.edu]Wraith[/email]BasketQase Software
February 23, 2000 05:47 PM
Oops, sorry I meant SwapBuffers(), not flip()... flip() is my function that calls SwapBuffers() and clears the OpenGL buffers.
Wraith
cdickinson@scu.edu
Wraith
cdickinson@scu.edu
[email=cdickinson@scu.edu]Wraith[/email]BasketQase Software
122
February 23, 2000 05:51 PM
I''m not sure if it is possible, at least not on every card. Most drivers allow the user to turn VSync on or off, so should take this into account in your application.
275
February 23, 2000 06:00 PM
I do not know if OpenGL supports it, but I think DX has a function that can check which scanline it is currently drawing. You could either check for the last or the first scanline to stop drawing then call your flip() function.
Edited by - nes8bit on 2/23/00 6:02:03 PM
Edited by - nes8bit on 2/23/00 6:02:03 PM
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