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Lecture 13: Global Illumination and Path Tracing (82)

The finiteness of the estimator is only in the expected number of recursive steps, right? Hypothetically if you got really unlucky with a constant prrp_{rr} you could continue for an arbitrary number of steps.


Hi Andrew. If you think about convergence conditions in probability, the probability that you will continue for a non-finite number of steps converges to 0 in probability and almost surely!

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