public bool IsShadowed(Point origin, Point light)
{
Interlocked.Increment(ref Stats.ShadowRays);
var v = light - origin;
var distance = v.Magnitude();
var direction = v.Normalize();
var r = new Ray(origin, direction, RayType.Shadow);
var intersections = this.Intersect(r);
var h = r.Hit(intersections);
if (h != null && h.Time < distance)
{
return(true);
}
else
{
return(false);
}
}
public Color ColorAt(Ray ray, int remaining = 5)
{
var intersections = new List <Intersection>();
intersections = this.Intersect(ray);
if (intersections.Count == 0)
{
return(new Color(0, 0, 0));
}
var hit = ray.Hit(intersections);
if (hit == null)
{
return(new Color(0, 0, 0));
}
var comps = hit.PrepareComputations(ray, intersections);
return(ShadeHit(comps, remaining));
}
