Closed anadodik closed 5 years ago
Hi,
this is not a bug. The current path tracers always importance sample the BSSRDF using the projection-based method, which already evaluates the components of S() internally, so an explicit call would be redundant/inefficient. The function is still included for educational reasons. S() could also be used to implement some other types of sampling schemes.
Best, Wenzel
I'm trying to reimplement the DisneyBSDF, and I notice that the BSSRDF::S function never gets used (meaning that the reimplementation used in DisneyBSSRDF also never gets used).
Is this a bug or am I missing something?