Schlick's Approximation of the Fresnel Term | Desmos

Expression 1: "f" positive left parenthesis, 1 negative "f" , right parenthesis left parenthesis, 1 minus max left parenthesis, cos left parenthesis, "x" , right parenthesis , 0 , right parenthesis , right parenthesis to the 5th power left brace, 0 less than or equal to "x" less than or equal to StartFraction, pi Over 2 , EndFraction , right brace

1

Expression 2: "f" equals 0.0 4

0

1

2

3

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