/// <summary> /// Finds color value given a Ray and Scene /// Use this method for outside calls to find color value. /// </summary> /// <param name="scene"></param> /// <param name="ray"></param> /// <returns></returns> public Color ColorAt(Ray ray, int remaining = reflectionBounces) { Color resultColor = Color.Black; Scene scene = this; List <Intersection> intersections = scene.Intersections(ray); Intersection hit = Intersection.Hit(intersections); if (hit == null) { return(resultColor); } Computation comp = new Computation(hit, ray); resultColor = ShadeHit(comp, remaining); return(resultColor); }
/// <summary> /// Determines if a point is in shadow /// Legacy. Will Remove. Doesn't pass object blocking light. /// </summary> /// <param name="point"></param> /// <param name="light"></param> /// <returns></returns> public bool IsShadowed(Point point, Light light) // LEGACY { // this needs to work for every light in the scene Scene scene = this; Vector3 pointToLight = light.Position - point; float distance = pointToLight.Magnitude(); Vector3 direction = pointToLight.Normalized(); Ray ray = new Ray(point, direction); List <Intersection> intersects = scene.Intersections(ray); Intersection hit = Intersection.Hit(intersects); //Do we have a hit and is it within the distance to the light? if (hit != null && hit.t < distance) { return(true); } else { return(false); } }