Scattering Effects for Realistic Images
a) light scattering from particles in the air
shafts of light; Nishita87, Inakage91
light beams passing through clouds; Max86
smoke, cloud; Kajiya84, Nishita87, Sakas91
multiple anisotropic volume scattering ;
radiosity of participating medium; Rushmeier87
sky color ; Klassen87, Kaneda91
atmosphere viewed from outer space; Nishita93