I had (and still have
) to learn something about the .ssc commands. In this special case the atmospheric color adjustments, especially Mie values and light scattering. Therefore I made this small addon. A cosmic event in june/july 2001 happened on mars. A global dust storm. Because at this time the light conditions of the atmosphere were very different...Info:
http://mars.jpl.nasa.gov/gallery/duststorms/20020508a_b.html
http://www.msss.com/mars_images/moc/10_11_01_dust_storm/index.html
Code: Select all
Modify "Mars" "Sol"
{
Texture "mars.*"
OverlayTexture "marsstorm.*"
NormalMap "mars_storm_norm.*"
Color [ 0.29 0.21 0.18 ]
HazeColor [ 0.29 0.24 0.24 ]
HazeDensity 0.44
Radius 3396 # equatorial
# Oblateness 0.0069
# Beginning 2452122.39772 # ~2001 31 7
# Ending 2452182.39772 # ~ 2001 29 9
Atmosphere {
Height 29
Lower [ 0.29 0.24 0.21 ]
Upper [ 0.29 0.23 0.18 ]
Sky [ 0.29 0.24 0.24 ]
Sunset [ 0.29 0.27 0.27 ]
Mie 0.00000024
MieAsymmetry -0.004
Rayleigh [ 0.0005 0.0004 0.0003 ]
Absorption [ 0.0004 0.0009 0.0004 ]
MieScaleHeight 13 # 4
CloudHeight 9
CloudSpeed 210
CloudMap "mars-storm-clouds.*"
}
CustomOrbit "vsop87-mars"
EllipticalOrbit
{
Period 1.8809
SemiMajorAxis 1.5237
Eccentricity 0.0934
Inclination 1.8506
AscendingNode 49.479
LongOfPericenter 336.041
MeanLongitude 355.453
}
UniformRotation
{
Period 24.622962
Inclination 26.72
AscendingNode 82.91
MeridianAngle 136.005
}
Albedo 0.112
}
Inclination 26.72
AscendingNode 82.91
MeridianAngle 136.005
}
Albedo 0.112
}images
For a better viewing I've added a (dust-) cloud layer and an overlay texture map. Further I've changed the normal map.
And, last but not least:
Thanks a lot for your helping pages (ssc/Mie): Bob Hegwood, Fridger Schrempp, Selden Ball, Ulrich "Adirondack" Dickmann!
Regards
Michael
