Fig. 2.
(a) An example of CDF for the HG phase function. The non-linear lookup table (cos θj* values and their corresponding CDFj = f (cos θj) values) is presented with red circles. The evenly spaced points of cos θj are presented with blue circles. Drawn random number ξ and the sampled cos θξ are given in green. (b) Construction of a non-linear lookup table from evenly spaced cos θj. The non-linear lookup table is presented in red. Green diagram highlights the sampling of cos θξ from a random number ξ.