Curtis Olson wrote:
> On 6/4/07, *Laurence Vanek* wrote:
>
> Just reporting what the numbers say. My refresh rate is indeed set at
> 85 Hz. HUD reports the frame rates I gave above.
>
> The insane rates came after the discovery of the cmake -i approach when
> building OSG.
>
> One week ago I had these high frame rates but with no stick-slip.
>
> Im not complaining, just reporting what I see. builds I made one week
> ago did not display this behavior.
>
>
> I would suggest going into your video card settings and enabling "sync
> to vblank". That should cap your frame rates at your video display
> refresh rate (which is a good thing all around) and the problem should
> go away.
>
> Curt.
> --
Curt -
I have the following set using the NVIDIA X Server Settings tool:
X Server Xvideo Settings:
video Texture Adapter --> Sync To VBlank
video Blitter Adapter --> Sync To VBlank
OpenGL Settings:
Sync To VBlank
With those settings I still get the high frame rates (> 175 fps) &
stick-slip behavior.
Interesting the situation is better with weather set to "none" rather
than METAR. Also observe that the worst stick-slip (maybe stutter is
better description) coincides with very high frame rates (>200 fps).
I was better off not building OSG optimized for this system.
This is not my "first rodeo" with FG on this system. It would seem
something fundamental has changed with the code. Perhaps others can
confirm (or not) after building the latest sources.
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