Validate Scattering

In this example, we validate our fit of the equivalent roughness of the Heynyey-Greenstein phase function and the use of the transmittance evaluated at the mean direction. We only validated the forward direction for scattering. We display the reference scattered distribution (middle) using Monte-Carlo integration, and our approximation (right).



input angular distribution
reference scattered angular distribution
approximated scattered angular distribution
depth: 010  
σs: 01  
σa: 01  


roughness: 01  
g: 01  


scale: 0100  
gamma: 01