Touch based rotation of 3d model

Unity Engine
1

I want to rotate my 3d model based on horizontal and vertical touch. So I want only x and y rotation applied into model.

But when I just swipe vertically on device then it also get z rotation as well. Here is my screenshot to give you more idea.

2493016--172052--wrongverticlerotationmodel.png
2493016--172052--wrongverticlerotationmodel.png561×745 81.2 KB

Here I have also attached my source code to give you more idea about problem.

 void LateUpdate ()
  {
   // If there are two touches on the device...
   if (Input.touchCount == 1 && GameManager.Instance.IsGameStart) {
    // Store currnet touch.
    Touch touch = Input.GetTouch (0);
    transform.RotateAround (transform.position, Vector3.up, -touch.deltaPosition.x  Time.deltaTime  15f);
    transform.RotateAround (transform.position, Vector3.right, touch.deltaPosition.y  Time.deltaTime  15f);
   }
  }

Please help me to sort out this problem.

2

instead of Rotate Around use Rotate.

make sure you use Space.Self

3

I have tried with this kind of code but result remain same.

 void LateUpdate ()
{

  // If there are two touches on the device...
  if (Input.touchCount == 1 && GameManager.Instance.IsGameStart) {

   // Store currnet touch.
   Touch touch = Input.GetTouch (0);

   transform.Rotate (Vector3.up, -touch.deltaPosition.x  Time.deltaTime  10f, Space.Self);
   transform.Rotate (Vector3.right, touch.deltaPosition.y  Time.deltaTime  10f, Space.Self);

  }

}
4

Now I have some sort of improvised code but not able to stop z rotation. Here is my code :

 // Update is called once per frame
  void LateUpdate ()
  {
   // If there are two touches on the device...
   if (Input.touchCount == 1 && GameManager.Instance.IsGameStart) {
    // Store currnet touch.
    Touch touch = Input.GetTouch (0);
//   transform.RotateAround (transform.position, Vector3.up, -touch.deltaPosition.x  Time.deltaTime  15f);
//   transform.RotateAround (transform.position, Vector3.right, touch.deltaPosition.y  Time.deltaTime  15f);
    transform.Rotate (Vector3.up, -touch.deltaPosition.x  Time.deltaTime  10f, Space.World);
    transform.Rotate (Vector3.right, touch.deltaPosition.y  Time.deltaTime  5f, Space.World);
//   transform.Rotate (Vector3.forward, 0f, Space.World);
    Vector3 objEularAngles = transform.rotation.eulerAngles;
    objEularAngles.z = 0f;
    transform.eulerAngles = objEularAngles;
     
   }
  }

Here is an image that represent what I don’ t want :

2499762--172739--Screen Shot 2016-02-07 at 3.31.12 PM.png

In above image, globe is completely rotated in z direction. I don’t want to do this.

5

Here is one more try from my side, in this I can able to fix z direction rotation but my y direction rotation got stopped.
please give me some hint in this so I can able to solve this problem.

void Update ()
{

  // If there are two touches on the device...
  if (Input.touchCount == 1 && GameManager.Instance.IsGameStart) {

   // Store currnet touch.
   Touch touch = Input.GetTouch (0);

   //   transform.RotateAround (transform.position, Vector3.up, -touch.deltaPosition.x  Time.deltaTime  15f);
   //   transform.RotateAround (transform.position, Vector3.right, touch.deltaPosition.y  Time.deltaTime  15f);

//   transform.Rotate (Vector3.up, -touch.deltaPosition.x  Time.deltaTime  10f, Space.World);
//   transform.Rotate (Vector3.right, touch.deltaPosition.y  Time.deltaTime  5f, Space.World);

   myRigidbody.MoveRotation (myRigidbody.rotation  Quaternion.Euler (Vector3.right   touch.deltaPosition.y  Time.deltaTime  5f));
   myRigidbody.MoveRotation (myRigidbody.rotation  Quaternion.Euler (Vector3.up  -touch.deltaPosition.x  Time.deltaTime  10f));

  }
}