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