I HOPE YOU'RE HAPPY

Blah.c++

template <typename T>
Fur::optional<RHit<T>> intersect( const Fur::TRay3<T>& ray, const RSphere<T>& target ) {
	Fur::TVector3<T> ray2sphere = target.position - ray.Origin;
	T dist = ray2sphere.Dot( ray.Direction );
	T ray2spheresquared = ray2sphere.Dot( ray2sphere );
	T radiussquared = Radius * Radius;

	if ( dist < 0 
		&& ray2spheresquared > radiussquared ) {
		return nullopt;
	}

	T raycrossessphere = ray2spheresquared - dist * dist;

	if ( raycrossessphere > radiussquared ) {
		return nullopt;
	}

	T q = static_cast<T>( sqrt( radiussquared - raycrossessphere ) );

	RHit<T> hit;
	if ( ray2spheresquared > radiussquared )
		hit.distance0 = dist - q;
	else
		hit.distance0 = dist + q;

	hit.contact = ray.Parametric( hit.distance0 );
	hit.normal = target.position - hit.contact;
	hit.normal.Normalize();

	return hit;
}