#pragma once #ifndef IWA_FRESNEL_H #define IWA_FRESNEL_H /* Fresnel反射率のテーブル(0°〜90° 1°刻み) */ static double fresnel[91] = { 0.020059312, 0.020059313, 0.020059328, 0.020059394, 0.020059572, 0.020059947, 0.020060633, 0.020061768, 0.020063519, 0.020066082, 0.020069685, 0.020074587, 0.020081084, 0.020089508, 0.020100231, 0.020113671, 0.020130291, 0.020150605, 0.020175182, 0.020204654, 0.020239715, 0.020281134, 0.020329757, 0.020386517, 0.020452442, 0.020528662, 0.020616424, 0.020717098, 0.020832193, 0.020963370, 0.021112458, 0.021281471, 0.021472628, 0.021688372, 0.021931397, 0.022204671, 0.022511467, 0.022855398, 0.023240448, 0.023671017, 0.024151962, 0.024688653, 0.025287023, 0.025953633, 0.026695742, 0.027521384, 0.028439454, 0.029459807, 0.030593365, 0.031852239, 0.033249863, 0.034801146, 0.036522642, 0.038432743, 0.040551883, 0.042902788, 0.045510732, 0.048403845, 0.051613442, 0.055174404, 0.059125599, 0.063510357, 0.068377002, 0.073779452, 0.079777891, 0.086439526, 0.093839443, 0.102061562, 0.111199722, 0.121358904, 0.132656604, 0.145224399, 0.159209711, 0.174777806, 0.192114072, 0.211426604, 0.232949158, 0.256944521, 0.283708376, 0.313573743, 0.346916096, 0.384159282, 0.425782383, 0.472327717, 0.524410184, 0.582728245, 0.648076867, 0.721362859, 0.803623128, 0.896046505, 1.0}; #endif