Meadville Space Center

Project Apollo - NASSP => Support & Bugs => Topic started by: EirikV on September 08, 2006, 03:56:40 PM



Title: Strange problem with FPS
Post by: EirikV on September 08, 2006, 03:56:40 PM
Hi guys,

I'm experiencing some strange problems with the newest NASSP installed (+patch).

My computer is new; Dell XPS 2gb ram, 3,2 ghz Pentium D processor, Nvida Geforce 7800 GTX 256 mb.. In other words, a computer that should be able to run orbiter smoothly. :)
When I go to the NASSP Apollo panel (2D), my FPS suddenly drops from 60 in outside view, to 1-0 in 2d cockpit view. I can't use any of the switches (nothing happens when I click on them)...
I have tried numerous reinstallations, changing resolution (usually running 1900x1200), etc.. Any idea why this happens?


Thanks for a great addon!


Title: Re: Strange problem with FPS
Post by: Christophe on September 09, 2006, 02:48:21 AM
Hi EirikV

I experienced the same trouble last year with my previous computer. IT was a graphic card issue. Your PC is new but your graphic card driver may be old. Sometimes the default driver may be old. Did you tried to update it?


Title: Re: Strange problem with FPS
Post by: Christophe on September 09, 2006, 02:50:51 AM
It may be an issue with open GL. FDAI uses open GL on panel 2D. In this case, a better graphic configuration could solve the problem.


Title: Re: Strange problem with FPS
Post by: BigDAS on September 09, 2006, 06:56:06 AM
Ah, I was wondeing about that myself, as I have the same problem. Alternatively, you can turn the FDAIGL mode off.



Title: Re: Strange problem with FPS
Post by: Tschachim on September 09, 2006, 12:38:58 PM
Yeah, to disable the OpenGL FDAIs insert

FDAIDISABLED 1

into the ProjectApollo\Saturn5 (or Saturn1b) vessel section of a scenario.

Cheers
Tschachim


Title: Re: Strange problem with FPS
Post by: BigDAS on September 09, 2006, 01:17:23 PM
I suspect it has to do with page flipping, as the FADI 3D object is in a masked window. I tried all the nVidia Open GL settings with no result, and tried setting the screen resolution and color to the same as Orbiter, no joy, although the page flipping does seem to be faster, but still around 10-15 fps. It will only happen after several switches from an outside window view, like Left or Right Viewport or Overhead Viewport. If I leave the view in the Center Panel, the problem does not occur. Next step is to update my nVidia OpenGL drivers.