public bool BoundingVolumeIsInView(BoundingBox box)
 {
     return(BoundingFrustrum.Contains(box) != ContainmentType.Disjoint);
 }
 public bool BoundingVolumeIsInView(BoundingSphere sphere)
 {
     return(BoundingFrustrum.Contains(sphere) != ContainmentType.Disjoint);
 }