Function SphericalTheta

include/luxrays/core/geometry/vector.h:190–192

}

inline float SphericalTheta(const Vector &v) {
	return acosf(Clamp(v.z, -1.f, 1.f));
}

inline float SphericalPhi(const Vector &v) {
	const float p = atan2f(v.y, v.x);