Participating Media
Participating Media
Participating Media
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Schlick Phase Function<br />
accurate shape of phase function not so<br />
important<br />
use equation of ellipse to approximate<br />
Henyey-Greenstein<br />
p(θ) =<br />
1−k 2<br />
4π(1+k cos θ) 2<br />
k is similar to g in Henyey-Greenstein