lambertian::scatter degenerate direction vec test #764
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In cases where the random unit vector is exactly or very closely equal to the reversed normal vector, the scatter direction vector will be zero or close to it. This can lead to infinite or NaN values after the call. Resolves #619
trevordblack
approved these changes
Oct 15, 2020
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In cases where the random unit vector is exactly or very closely equal
to the reversed normal vector, the scatter direction vector will be zero
or close to it. This can lead to infinite or NaN values after the call.
Resolves #619