Middle Grey = .32, Gamma Correction = 2.2, and Samples per Pixel = 2048

The alphaV values for the balls in the image is increasing from one ball to the next, such that when
the alphaU and alphaV values are the same, the ball exhibits isotropic reflection. Each ball has an
alphaU value of 0.01 and the alphaV values are: {1.0, 0.5, 0.3, 0.1, 0.01}.

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