To confirm, this slide is saying getting the caustic reflection will be highly unlikely, correct?
FeiFeiFei
It basically says if we want to sample the reflection in a naive way, given it is a point light, the probability for we sample the exact reflecting path is zero. Even if it is not a strict point light, it could also be very small for doing it in a naive way.
To confirm, this slide is saying getting the caustic reflection will be highly unlikely, correct?
It basically says if we want to sample the reflection in a naive way, given it is a point light, the probability for we sample the exact reflecting path is zero. Even if it is not a strict point light, it could also be very small for doing it in a naive way.