Method Pdf

src/slg/core/sphericalfunction/sphericalfunction.cpp:104–110

}

float SampleableSphericalFunction::Pdf(const Vector &w) const {
	const float theta = SphericalTheta(w);
	const float phi = SphericalPhi(w);

	return uvDistrib->Pdf(phi * INV_TWOPI, theta * INV_PI) /
		(2.f * M_PI * M_PI * sinf(theta));
}

float SampleableSphericalFunction::Average() const {
	return average;