media
// general media statement
// put in interior or in scene file for atmospheric media
media {
// (---general values---)
intervals 10 // number of intervals used for sampling [10]
samples 1,1 // minimum and maximum number of samples taken per interval [1,1]
confidence 0.9 // statistic parameter higher->better quality [0.9]
variance 1.0/128 // statistic parameter lower->better quality [1.0/128]
ratio 0.9 // distribution between lit and unlit areas [0.9]
// (---media types---)
absorption rgb<0,1,0> // absorbing media, block light of specified color
//emission rgb<0,1,0> // emitting media, emit light of specified color
/*
scattering { // scattering media
1, // scattering type 1=isotropic; 2=Mie haze; 3=Mie murky
// 4=Rayleigh; 5=Henyey-Greenstein
rgb<0,1,0> // color
//eccentricity 0.25 // eccentricity for type 5 [0.0]
//extinction 1.0 // for balancing amount of absorption [1.0]
}*/
// (---method---)
//method 1 // old Povray 3.1 method
//method 2 // new method with even distribution
method 3 // adaptive sampling
//aa_threshold 0.1 // accuracy threshold for method 3 [0.1]
//aa_level 4 // maximum recursion depth for method 3 [4]
//jitter 0.5 // randomness for method 2&3
// (---density---)
/*
density {
spherical // any pattern
color_map {...} // color_map
//density_map {...} // or alternatively density_map
}*/
// translate etc.
}