Transfert radiatif
- incident radiation = scattering + absorption + transmission
- extinction = scattering + absorption
- diffusion(n) = somme<1,n> (scattering) ?
- attenuation = transmission / incident radiation
- reflexion d’un amas ouvert sur l’ISM = (1-attenuation(r(x,y,z))) * (SpectreSource - SpectreSource * SpectreAbsorption(ISM)) * IntensitySoucre/d^2 * f(dirS,dirView)