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 4 5 0 8 0 3 6 3 8 1
negative 0.4 3 4 7 4 1 4 7 9 5 6 1
negative 0.4 3 0 1 1 8 6 6 0 4 4 7
negative 0.4 3 2 2 7 5 9 1 4 7 4 8
negative 0.4 4 0 7 1 7 3 2 3 0 1 2
negative 0.4 5 3 4 9 0 4 1 5 7 1 1
negative 0.4 6 7 5 8 3 8 1 6 3 7 2
negative 0.4 7 9 5 5 0 9 7 7 3 2 6
negative 0.4 8 6 3 2 2 6 7 9 5 3 9
negative 0.4 8 6 0 8 9 8 8 5 4 5 4
negative 0.4 7 8 9 1 5 7 5 0 8 1 3
negative 0.4 6 6 7 1 2 9 9 0 1 7
negative 0.4 5 2 6 0 1 7 1 6 7 3 5
negative 0.4 4 0 0 2 3 2 0 0 8 3
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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