On Fri, 15 Jun 2012 20:47:02 -0700 (PDT), Catherine wrote in message
1339818422.43212.yahoomailclas...@web83907.mail.sp1.yahoo.com:
Some years ago when I started flying FlightGear 2.0, I added
--model-hz=480 to my startup aliases for reasons I no longer
remember.
..you're running the fdm at 480Hz.
I've continued to use these aliases through 2.4 and 2.6
with no real ill effect.
..sounds fair, the heavy load is graphics.
However, on a git build from June 13 I've noticed that using them
really clobbers the framerate. Instead of getting 30 - 50 fps
without this argument, I get more like 1-2 fps with it set. These
frame rates are based on a default configuration, with the .fgfs
directory erased immediately before starting.
..guys? Help needed.
I'm not sure if this is a bug or just a change in the way that this
flag functions, but at the very least we should note in the
documentation that this command-line argument can create problems
with 2.7.
Even without this flag set, I'm getting extremely low frame rates of
1 - 4 fps on at least some aircraft (e.g., the Trimotor) until the
aircraft breaks ground, then it suddenly jumps to 30+ fps. Landing
and taking off again retains the 30+ fps frame rate.
8-core AMD machine, 8 G RAM, nVidia GTX 560,
..big enough iron, might even haul your 560 at useful frame
rates on the nouveau driver.
running Kubuntu Maverick.
..updated?
--
..med vennlig hilsen = with Kind Regards from Arnt Karlsen
...with a number of polar bear hunters in his ancestry...
Scenarios always come in sets of three:
best case, worst case, and just in case.
--
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