Abstract
In Chapter 8 we first introduced the Monte Carlo method for the evaluation of radiative exchange between surfaces. While statistical in nature, in this method we are tracing physically meaningful photons from their point of emission to their point of absorption, or their exit from the enclosure (albeit only a tiny, but statistically relevant sample). Therefore, the method is immediately applicable to participating media: we simply need to add statistical algorithms for the emission of photons from a gas, particles, or a semitransparent medium, as well as rules for the interaction of streaming photons with the medium, i.e., volumetric absorption and scattering.
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