David Luff wrote:
On 27/01/2005 at 12:19 Curtis L. Olson wrote:
< snip rwy lights are dropping the frame rate >
Any ideas?
Not on the technical side, but one thing we could do now is to ditch the
green taxiway center lights. These aren't specified in the new format apt
data, and the latest build has defaulted to enabling them for all taxiways
that have edge lights. If we switch them off for the next scenery build,
then the majority of smaller airports will probably be more accurate (ie.
they shouldn't have them anyway), and the larger airports will gain a
framerate boost at the expense of missing the green lights that might exist
in real life. Currently the lighting at EGLL or KSFO drops my frame rate
from around 30 to about 10. Based on a rough estimate of light numbers, I
reckon that ditching the green taxiway centerlights might get back 3 - 4
fps, not brilliant but a start. Note that the EGLL poly count is already
hitting my frame rate to begin with - at daytime it's about 60 with view
away from airport, 30 with view including airport. Then 10 with the
lighting added. The frame rate with lighting enabled at EGLL is completely
independent of anisotropic filtering, FSAA, or screen resolution - it's
pegged solidly at 10. I guess it's either CPU or AGP bus limited - any way
to try and find out / guess which? [AMD XP2000+, GF5900XT 128M, 4x AGP].
Could be VASI/PAPI slowing you down in daytime.
Curt.
-- Curtis Olson http://www.flightgear.org/~curt HumanFIRST Program http://www.humanfirst.umn.edu/ FlightGear Project http://www.flightgear.org Unique text: 2f585eeea02e2c79d7b1d8c4963bae2d
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