Re: [PyOpenGL-Users] Re: No OpenGL hardware accelleration on Win2k box - am I missing something?

[Rene D. <il...@ya...>]

Benjamin Deutsch wrote:

> Hello again,
>
>> > The thing is, all my test programs, and all NeHe demos, run about
>> > 8-10 times SLOWER on the Win2k box than on the Linux box in terms of
>> > fps! This applies to several versions of the NeHe Demos, and happens
>> > even when I chose HWSURFACE and FULLSCREEN (for
>> > pygame.display.set_mode).
>
>
>> what driver do you have installed?  Sounds like a software version is
>> being used.
>>
>> glInfo is good for getting that info.  You can find a copy here:
>> http://delphi3d.net/hardware/index.php
>
>
> Thanks for the link, but it seems my problem isn't hardware
> accelleration after all. It seems that under Windows, PyOpenGL always
> does an implicit vsync, but not under Linux. It took me a while to
> realize that my fps were suspiciously close to my monitor's framerate...
>
> Does anyone know a way to turn this on or off? I guess it's no longer a
> problem, just an oddity; in fact, it might be beneficial (my programs
> won't really get any actual framerate faster than the monitor, will 
> they?)
>
> Thanks though,
>
It's probably good to use vsync :)

You can turn it off with the driver settings.

Be interesting to know how to do it from your program.  I did a bit of 
searching but couldn't figure out how.

With sdl it seems to try and get vertical sync, but sometimes it can't 
get it.  eg Full screen in windows with nvidia drivers for me doesn't 
sync I think.


Sam I am.