tangent and normal
8
caustic / refracted rays
12
0
less than or equal to "t" less than or equal to
13
equals
negative 0.4 7 9 7 4 5 9 9 4 6 9 7
negative 0.4 8 6 3 8 9 7 7 4 9 9 4
negative 0.4 8 6 0 1 0 8 4 3 1 1 8
negative 0.4 7 8 7 1 1 9 9 8 2 3 6
negative 0.4 6 6 4 3 7 9 4 0 3 4 5
negative 0.4 5 2 3 2 3 9 9 4 3 6 6
negative 0.4 3 9 8 0 9 0 9 5 0 2 8
negative 0.4 3 1 8 3 7 0 8 0 7 0 1
negative 0.4 3 0 2 5 0 1 7 9 8 4 5
negative 0.4 3 5 4 1 3 1 4 4 4 0 3
negative 0.4 4 6 1 3 7 1 4 0 3 0 4
negative 0.4 5 9 9 2 5 2 5 4 1 4 6
negative 0.4 7 3 4 7 9 3 0 8 6 5 5
negative 0.4 8 3 4 1 3 9 0 9 4 5 4
14
k = 1 - e² (1 - dot(N, I)²) R = e * I - (e * dot(N, I) + sqrt(k)) * N ................................................... k = 1 - e² (1 - 1/l²) R = e Z - (e/l + sqrt(k)) * N
15
0
2 pi
16
17
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