Unity 鼠标旋转物体360展示

PC端

using UnityEngine;
using System.Collections;

public class DragRound : MonoBehaviour {

    public Transform obj;
    public float speed = ;

    private bool _mouseDown = false;

    void Update ()
    {
        if (Input.GetMouseButtonDown())
            _mouseDown = true;
        else if (Input.GetMouseButtonUp())
            _mouseDown = false;

        if (_mouseDown)
        {
            float fMouseX = Input.GetAxis("Mouse X");
            float fMouseY = Input.GetAxis("Mouse Y");
            obj.Rotate(Vector3.up, -fMouseX * speed, Space.World);
            obj.Rotate(Vector3.right, fMouseY * speed, Space.World);
        }
    }
}

移动端：

using UnityEngine;
using System.Collections;

public class DragRoundPhone : MonoBehaviour {

    private Vector3 startFingerPos;
    private Vector3 nowFingerPos;
    private float xMoveDistance;
    private float yMoveDistance;
    private int backValue = ;
    public GameObject obj;
    void Update()
    {
        if (Input.touchCount <= )
        {
            return;
        }

        if (Input.GetTouch().phase == TouchPhase.Began)
        {
            //Debug.Log("======开始触摸=====");
            startFingerPos = Input.GetTouch().position;
        }

        nowFingerPos = Input.GetTouch().position;

        if ((Input.GetTouch().phase == TouchPhase.Stationary) || (Input.GetTouch().phase == TouchPhase.Ended))
        {
            startFingerPos = nowFingerPos;
            //Debug.Log("======释放触摸=====");
            return;
        }
        //          if (Input.GetTouch(0).phase == TouchPhase.Ended) {
        //
        //          }
        if (startFingerPos == nowFingerPos)
        {
            return;
        }
        xMoveDistance = Mathf.Abs(nowFingerPos.x - startFingerPos.x);
        yMoveDistance = Mathf.Abs(nowFingerPos.y - startFingerPos.y);

        if (xMoveDistance > yMoveDistance)
        {
            if (nowFingerPos.x - startFingerPos.x > )
            {
                //Debug.Log("=======沿着X轴负方向移动=====");
                backValue = -; //沿着X轴负方向移动
            }
            else
            {
                //Debug.Log("=======沿着X轴正方向移动=====");
                backValue = ; //沿着X轴正方向移动
            }
        }
        else
        {
            if (nowFingerPos.y - startFingerPos.y > )
            {
                //Debug.Log("=======沿着Y轴正方向移动=====");
                backValue = ; //沿着Y轴正方向移动
            }
            else
            {
                //Debug.Log("=======沿着Y轴负方向移动=====");
                backValue = -; //沿着Y轴负方向移动
            }

        }
        if (backValue == -)
        {
            obj.transform.Rotate(Vector3.up * - * Time.deltaTime * , Space.World);
        }
        else if (backValue == )
        {
            obj.transform.Rotate(Vector3.up * Time.deltaTime * , Space.World);
        }
        else if (backValue == )
        {
            obj.transform.Rotate(Vector3.right * Time.deltaTime * , Space.World);
        }
        else if (backValue == -)
        {
            obj.transform.Rotate(Vector3.right * - * Time.deltaTime * , Space.World);
        }  

    }
}