Lecture 13: Global Illumination & Path Tracing (70)
kalebblack

This 3-bounce path appears to have a lot of similar rays that go from the last ball to the light source with the previous 2-bounce slide, I was wondering if it is a good idea to cache and check if previously computed rays share the rest of the bounce path or at least are close enough within some error tolerance?

kaipinryankoh

I believe caching could possibly allow for a more efficient way of sampling across the entire space more effectively, and it would make sense to check within an error tolerance.

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