Searched refs:tan2 (Results 1 – 1 of 1) sorted by relevance
168 float tan2 ; in beckmann() local171 tan2 = (_c * _c - 1.f) / (_c * _c) ; in beckmann()172 return exp(tan2 / (m * m)) ; in beckmann()179 GLfloat tan2 ; in beckmann2() local181 tan2 = (cos2 - 1.f) / cos2 ; in beckmann2()182 return exp(tan2 / (m * m)) / (cos2 * cos2) ; in beckmann2()