Transmittance function mapping
Cyril Delalandre, Pascal Gautron, Jean‐Eudes Marvie, Guillaume François · 2011
The interaction between light and participating media involves complex physical phenomena including light absorption and scattering. Media such as fog, clouds or smoke feature complex lighting interactions that are intrinsically related to the properties of their constitutive particles. As a result, the radiance transmitted by the medium depends on the varying properties on the entire light paths, which generate soft light shafts and opacity variations.