private ClosestSphere GetClosestSphereIntersectionInList(Ray ray, List <PotatoSphere> spheres)
{
PotatoSphere intersectedSphere = null;
Vector3 hitPosition = new Vector3();
Vector3 hitNormal = new Vector3();
Vector3 localHitPosition = new Vector3();
Vector3 localHitNormal = new Vector3();
double distance = double.PositiveInfinity;
double t = 0.0;
//LoopSphereListToGetTheClosets(ray, spheres, ref intersectedSphere, ref hitPosition, ref hitNormal, ref localHitPosition, ref localHitNormal, ref distance, ref t);
for (int i = 0; i < spheres.Count; i++)
{
if (SphereIntersection.Intersect(ray, spheres[i], ref localHitPosition, ref localHitNormal, ref t))
{
if (t < distance)
{
distance = t;
intersectedSphere = spheres[i];
hitPosition = localHitPosition;
hitNormal = localHitNormal;
}
}
}
return(new ClosestSphere(intersectedSphere, hitPosition, hitNormal, distance));
}
private void LoopSphereListToGetTheClosets(Ray ray, List <PotatoSphere> spheres, ref PotatoSphere intersectedSphere, ref Vector3 hitPosition, ref Vector3 hitNormal, ref Vector3 localHitPosition, ref Vector3 localHitNormal, ref double distance, ref double t)
{
for (int i = 0; i < spheres.Count; i++)
{
if (SphereIntersection.Intersect(ray, spheres[i], ref localHitPosition, ref localHitNormal, ref t))
{
if (t < distance)
{
distance = t;
intersectedSphere = spheres[i];
hitPosition = localHitPosition;
hitNormal = localHitNormal;
}
}
}
}