Curtis Olson wrote: > On 6/4/07, *Laurence Vanek* wrote: > > After about a month of relatively stick-slip free behavior I find it has > returned. > > Just completed updates & builds of OSG, simgear, FG. I have high frame > rates (150 --> 175 fps) according to the HUD readout so I dont believe > its that problem. > > Have the issue with both the aerostar & c172p. Happened with short > flights over pretty generic terrain (KPIT to KERI). Was using METAR > weather as I usually do. With the aerostar the simulation actually > froze at the moment of runway touchdown. Thats a first for me. > > System is Linux Fedora Core 6, nVidia graphics card (GeForce 7600 GS > w/256 meg VRAM). Have Sync to VBlank set but that doesnt seem to make a > difference on this system. Using refresh rate of 85 Hz, also doesnt > seem to make a difference. > > Seems something has regressed relative to about one week ago. > > > I'm confused, in the first part of your message you say you are getting > 150-175 fps, and then at the end you are saying you are doing 85 hz. > There is a timing resolution problem in FlightGear where when you get > into insanely high frame rates, the flight dynamics don't update in real > time. I haven't dug into it myself, but I suspect it is related to how > flightgear computes the elapsed time of each frame and then uses that to > determine how many iterations of the flight dyanamics it should run. > > Curt. > --
Curt - 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. ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Flightgear-users mailing list Flightgear-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-users
