public static Tuple ColourAt(World world, Ray ray, int remaining)
{
Intersection[] worldIntersections = IntersectWorld(world, ray);
Intersection hit = Intersect.Hit(worldIntersections);
if (hit != null)
{
Precomputation comps = Intersect.PrepareComputations(hit, ray);
return(ShadeHit(world, comps, remaining));
}
else
{
return(new Tuple(0, 0, 0, 0));
}
}
public static bool IsShadowed(World world, Tuple point)
{
Tuple lightv = world.SceneLight.Position - point;
float distance = lightv.Magnitude();
Tuple direction = lightv.Normalise();
Ray shadowRay = new Ray(point, direction);
Intersection[] worldIntersections = IntersectWorld(world, shadowRay);
Intersection hit = Intersect.Hit(worldIntersections);
if (hit != null)
{
if (hit.T_Value < distance)
{
return(true);
}
}
return(false);
}