/// <summary>
/// Iterates over all of the shapes in the world and returns all of the hits for the specified ray.
/// </summary>
/// <param name="ray">The ray to use for hit testing.</param>
/// <returns>The list of all intersections for the specified ray.</returns>
public IntersectionList Intersect(Ray ray)
{
var hits = new IntersectionList();
foreach (Shape shape in Shapes)
{
IntersectionList shapeHits = shape.Intersect(ray);
hits.AddRange(shapeHits);
}
return(hits);
}
