Hi, I made this patch some time ago, and seems like it is working quite fine, so I though if it might be possible to add to git (if nothing more, then maybe for future reference)?
It does two things. First I modified the skydome code to be more configurable so that the precision could be increased (number of rings and bands). Then I implemented the O'Neil's scattering shader to showcase the scattering. I know that for the proper effect, terrain and other objects should use the same shader, but that is probably future work. Anyways, here are links to patches and effects. The flightgear patch only makes clearcolor black, so that space is dark instead of gray. http://users.tkk.fi/~lapelto2/fgfs/scatter/scatter-simgear.patch http://users.tkk.fi/~lapelto2/fgfs/scatter/scatter-flightgear.patch http://users.tkk.fi/~lapelto2/fgfs/scatter/skydome.eff http://users.tkk.fi/~lapelto2/fgfs/scatter/skydome.frag http://users.tkk.fi/~lapelto2/fgfs/scatter/skydome.vert Screenshots can be found from the forum thread: http://www.flightgear.org/forums/viewtopic.php?f=47&t=11274&p=117965#p117965 And the command line to run the shader, it needs some properties set: fgfs --prop:/sim/rendering/mie=0.003 --prop:/sim/rendering/rayleigh=0.0003 --prop:/sim/rendering/dome-density=0.5 --prop:/sim/rendering/scattering-shader=1 The non-shader version should look just like it used to, but on some occasions I think the sunset effect is a bit misplaced. I didn't touch that code, so was it always like that? Can someone verify? Cheers, Zan ------------------------------------------------------------------------------ Forrester Wave Report - Recovery time is now measured in hours and minutes not days. Key insights are discussed in the 2010 Forrester Wave Report as part of an in-depth evaluation of disaster recovery service providers. Forrester found the best-in-class provider in terms of services and vision. Read this report now! http://p.sf.net/sfu/ibm-webcastpromo _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
