On 12/11/06, Bil Galbraith <[EMAIL PROTECTED]> wrote:
For an unexplained reason, it's working better now.
Athlon 3700+ 1 Gig hz 1 Gig memory, with onboard ATI
Radeon XPress 200 video, yields about 9 frames per sec
with the C-172. Yeah, I probably should get a better
video card in there (It's only money, right?). What
kind of rate should I be targeting?
I know there are a few people who refuse to run nvidia cards because they
don't make their drivers open-source, but I have had good luck through the
years with nvidia so I've stuck with them.
I'd be targetting 60fps for the best visual quality. Actually you'd like to
be able to do much higher than that, but then sync to the vblank signal.
That way you run at a solid/consistant 60hz and your system has some built
in extra capacity so if you load up the scene in some situation, there's
less of a chance you'll drop below 60 hz.
Note that from our movie experience we know that anything higher that 24 fps
yields "smooth" animation. However, our eyes are extremely good at spotting
changes in the frame rate so you want to try to run at a rock solid update
rate and not be dropping frames. Even if you run at 60hz and drop only one
frame a second (down to 30hz for one update) your eye can pick that out as a
discontinuity.
If all your machines are locked into 60hz, your network updates will stay
nicely in sync, your visual channels will all update together at the same
rate and in sync, and life will be good.
Also, is there a way to tell FG not to load all the
visual terrain data on the computer that is just
displaying instruments? Yeah, I should probably
RTFM!!!
Use the source ... :-)
--prop:/sim/rendering/draw-otw=false
Curt.
--
Curtis Olson - University of Minnesota - FlightGear Project
http://baron.flightgear.org/~curt/ http://www.humanfirst.umn.edu/
http://www.flightgear.org
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