public CameraPathData()
 {
     heads = new Curve3D();
     targets = new Curve3D();
     ups = new Curve3D();
 }
 public CameraPathData(CurveLoopType CurveLoopType)
 {
     heads = new Curve3D(CurveLoopType);
     targets = new Curve3D(CurveLoopType);
     ups = new Curve3D(CurveLoopType);
 }