I was fiddling with enhance runway lighting tonight and was wondering if
we are using the distance attenuation extention optimally?
It appears that we specify a point size of 4. As the lights get further
in the distance they fade in terms of alpha, but they don't ever get
smaller. This makes the lights look really blurry and overlap in the
distance ... kind a weird unnatural effect.
The spec seems to imply that it will change the point size until it hits
a threshold (default =1.0) and below that it will start fading in alpha
to approximate smaller point sizes.
However, with the quadratic coefficients we have, we never seem to get
any smaller points, only the alpha fading. This is on an nvidia card.
I played around with the quadratic coefficients and attempted to get
smart about fitting the desired function so I could control point size
versus distance. But I could never get the point sizes to shrink. In
fact, I couldn't really get the display to change at all.
Am I misunderstanding something about the spec? Is there something
broke? Does this extention not play well with our directional runway
lighting scheme?
I think we ought to be able to do a lot better than what I'm seeing here
on my hardware. Any ideas?
Thanks,
Curt.
--
Curtis Olson http://www.flightgear.org/~curt
HumanFIRST Program http://www.humanfirst.umn.edu/
FlightGear Project http://www.flightgear.org
Unique text: 2f585eeea02e2c79d7b1d8c4963bae2d
-------------------------------------------------------
This SF.net email is sponsored by: Splunk Inc. Do you grep through log files
for problems? Stop! Download the new AJAX search engine that makes
searching your log files as easy as surfing the web. DOWNLOAD SPLUNK!
http://sel.as-us.falkag.net/sel?cmd=lnk&kid=103432&bid=230486&dat=121642
_______________________________________________
Flightgear-devel mailing list
Flightgear-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/flightgear-devel
