Lecture 15: Advanced Topics in Material Modeling (71)
noeceb

A difference between BRDF and BSSRDF is that BSSRDF can describe light transport between any two rays that hit a surface, meanwhile BRDF will assume that light entering a material leaves the material at the same position.

akyang

how much more compute is needed for bssrdf compared to brdf? is it always a lot more or does it really depend on the objects rendered?

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