On 9/1/07, Detlef Faber wrote:
>
> Hello everybody,
>
> I've been playing around with OSGs Particle Systems and found this might
> be suitable to create some 3d clouds. But see yourself:
>
> http://www.sol2500.net/flightgear/ksfo-under-clouds.jpg
> http://www.sol2500.net/flightgear/cloudfront.jpg
> http://www.sol2500.net/flightgear/clouds-over-ksfo.jpg
> http://www.sol2500.net/flightgear/bushfire.jpg
>
> Here is a zip containing the files.
> http://www.sol2500.net/flightgear/ParticleSys.tar.gz
>
> Put it in /Models/ and use the ufo to place them.
> clouds.xml creates a 20x20 km big cloud field.
>
> Sometimes particle systems do not work at once. They cannot (yet) be
> placed as static objects in the scenery. Finally they get clipped by the
> Cloud Layer, so be sure to switch off any clouds.
>
> Perhaps someone with knowlage of the weather system has an idea how to
> use these.
I'm only able to look at the still shots this afternoon, but the one thing I
wonder about with a partical system versus an imposter system is how would
the particles look as you move? Do you get a sense of 3d or will things
look a bit strange if the texture is always turning and facing the camera?
Perhaps it will look good, but that is the first thing I'd look for. But
maybe this system would work well for certain types of cloud layers? From
the static screen shots it certainly looks promising. Ground fires + water
bombing would be a cool thing .... if we could put the forest fire into the
MP system some how so that we could work cooperatively to put out fires,
that would be another nifty thing. :-)
Regards,
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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