S Andreason wrote > > Erik Hofman wrote: > >> Why wait for a NASA Shuttle? There already exist several models to see > >> the /interesting/ effects at altitude, some which have changed with the > >> new ambient values. > >> > > > > For good or for bad? > > (and if for bad what exactly, or as precise as possible). > > > > > Bad, of course. > Oh yes, I can be precise. > :D > I made a web page of thumbnail screenshots (enlargable), along with > narrative at > http://seahorseCorral.org/fgfs-bug-report.html
The thunmbnail inks don't work here. > > To summarize: > I previously reported the white-out bug on IRC on 2008.Dec.16 saying, > /"I was flying at 39,000 asl and the white-out bug returned. This is > lower altitude than last seen. I discovered the threshold was changing > with sun-angle, so mapped the threshold. It occurs down to 36,400 when > sun-angle is 1.56"/ > > A combination of sun-angle and altitude defines the threshold for where > this occurs. As the sun-angle decreases, or the sun gets higher in the > sky, the altitude at which this occurs gets higher. > Also, at lower altitudes, the problem seems to occur when the sun is on > the horizon, perhaps the specular effects at sunrise are the problem? > Because continuing into night from day, the white-out disappears at > sun-angle 1.65 > > It also becomes apparant, this "white-out" causes material-only surfaces > to turn completely white, while textured surfaces lose their ambient and > diffuse values, and then look like the plain texture-image file. > > > One problem with higher altitudes is that it's not as easy to model as > > lower altitude coloring. > > > > I don't think the atmosphere darkening to black is bad at all. In fact, > except for the lack of Earth along the true horizon, it looks quite nice. > This is very interesting. Do the new ambient adjustments as of yesterday give the same results? Vivian ------------------------------------------------------------------------------ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
