static public Plane MultiplyPlane(this Matrix4x4 item, Plane plane) { return(PlaneExtensions.CreateNormalAndPoint( item.MultiplyVector(plane.normal), item.MultiplyPoint(plane.GetOrigin()) )); }
static public Plane GetFlipped(this Plane item) { return(PlaneExtensions.CreateNormalAndPoint(-item.normal, item.GetOrigin())); }