Lecture 13: Global Illumination & Path Tracing (35)
zehao-sean-huang
One non-trivial requirement for the later operator arithmetics to work is that these operators are linear. They are linear because integration is linear, and the integrands are parameterized by omegas, not having any effect on the L's.
One non-trivial requirement for the later operator arithmetics to work is that these operators are linear. They are linear because integration is linear, and the integrands are parameterized by omegas, not having any effect on the L's.