Function UniformSampleHemisphere

src/luxrays/utils/mc.cpp:70–77

}

Vector UniformSampleHemisphere(const float u1, const float u2) {
	const float z = u1;
	const float r = sqrtf(Max(0.f, 1.f - z * z));
	const float phi = 2.f * M_PI * u2;
	const float x = r * cosf(phi);
	const float y = r * sinf(phi);
	return Vector(x, y, z);
}

float UniformHemispherePdf(float theta, float phi) {
	return INV_TWOPI;