On Mon, 25 Feb 2008, Anders Gidenstam wrote: > I thought about making a cellular automata model of a forest fire some > time back, but never got around to actually implement anything. At that > point I was thinking about using the OSG fire object from the payen-pa100 > aircraft. For communication I was considering sending the start event over > MP and then hope that identical propagation rules would lead to nearly > identical states (that is a bit optimistic, though :). > > I might take a second look at this.
And now I finally got around to do that :) It is not quite ready for prime time yet but I have the base cellular automata based on the first paper I stumbled upon [0] - there could be better CA models out there. No wind, altitude or fire retardant dependency yet. The MP interaction is independent replication with control event broadcast (so far only there is only a one event: "start fire at pos" :). http://fgfs.i-net.hu/modules/xcgal/displayimage.php?pid=57&album=15&pos=2 http://fgfs.i-net.hu/modules/xcgal/displayimage.php?pid=58&album=15&pos=3 http://fgfs.i-net.hu/modules/xcgal/displayimage.php?pid=59&album=15&pos=0 http://fgfs.i-net.hu/modules/xcgal/displayimage.php?pid=60&album=15&pos=1 It would be great if someone could contribute a more FlightGear integrated fire 3d model. Preferably with different LODs - to be cheap when seen from far (when there could be hundreds in view :) and more detailed close up. Hundreds of fire.osg objects is beyond the capacity of my box.. The CA updates also becomes heavier as the number of cells increase, but I have some ideas on how to spread the load over time. Cheers, Anders [0] http://dx.doi.org/10.1016/j.advengsoft.2006.09.002 -- --------------------------------------------------------------------------- Anders Gidenstam mail: anders(at)gidenstam.org WWW: http://www.gidenstam.org/FlightGear/ ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
