Proj11 Wenyou Wang

Ray bounce count=3

Indirect ray bounce count=1

mistake:SampleRays on the Hemisphere just sample Intensity value

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comparison: uniform 16samples vs cosine 16samples. It's clear CosineHemisphere Sampling is better. See there are less noise points on the bottom of teapot and on the top wall.

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cosine 64samples good quality

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