Jonathan Polley <[EMAIL PROTECTED]> said: > I just did a computer upgrade and I am trying to better understand its > capabilities, WRT FlightGear. To do this, I am curious as to the frame > rates that people are seeing with buildings turned ON. Here is my > .frgsrc (and FlightGear is build single threaded): > > --disable-clouds > --fdm=ufo > --disable-panel > --enable-anti-alias-hud > --disable-sound > --disable-random-objects > --prop:/sim/view/internal=false > --disable-clouds3d > > On the tarmac, I am getting 20 FPS. Fly at almost 200 knots (and about > 200 feet, by the time I am at the end of the runway I am getting 50 > FPS. Following the road to the right, frame rate drops to about 11-13 > FPS. Cross the hill and head to city, 9-11 FPS. As I head through the > city, toward the buildings, the worst frame rate I see is 8 FPS. > > With my cygwin build on the PC I don't see the buildings (and cygwin > does some very bad things with performance when writing to STDOUT and > STDERR), so it kind of hard for me to benchmark it here. >
There are a lot of variables that can affect frame rate. The amount of video memory available is one of them. Within flightgear the type of aircraft and it's detail make some difference. You'll also see a drop (as I do) when the downtown area is within the view frustrum. If you want to compare notes with others you might want to specify your hardware and specific aircraft and view locations and directions. At startup with the aircraft sitting on the threshold you will notice changes in frame rate by changing the view direction to the right and left. Judging by the numbers I take it you are not running a GFX5800 on a 3Ghz P4. If you are, something is _really_ wrong :-) Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
