I've been playing with modeling St. Elmo's Fire as an instrument:
http://home.comcast.net/~davidculp2/stelmo-clear-sky.jpg http://home.comcast.net/~davidculp2/stelmo-in-clouds.jpg
which is convenient, but has some problems. The main problem here is that it's barely visible inside of clouds, where one would expect to see it. If I change the time-of-day to something darker the panel code darkens and redens everything, which ruins the effect.
Then of course there's the problem of setting up a boolean property that randomly, and rapidly, is "true", in order to model "flickering".
To increase contrast, you could draw the lines in black for one frame, then white for a few frames and then balck again for one frame.
This works at least for normal lightning (but it can be that it won't work here)
CU, Christian
_______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel 2f585eeea02e2c79d7b1d8c4963bae2d
