Hololens缩放物体源码(待完善)

using UnityEngine;
using System.Collections;

public class ScaleQuad : MonoBehaviour
{

public GameObject master; //Empty before the Quad
public GameObject quad; //The Quad I want to scale
Raycast hitInfo;
private Vector3 offsetOld;

void Update()
{
    var headPosition = Camera.main.transform.position;
    var gazeDirection = Camera.main.transform.forward;

    if (Physics.Raycast(headPosition, gazeDirection, out hitInfo))
    {
        //Create the offset
        offset = hitInfo.point - master.transform.position;

        // To get the new offset between hitpoint and master.transform.position for the new size
        Vector3 diff = offset - offsetOld;

        vFBMaster.transform.position = new Vector3((diff.x + master.transform.position.x), (diff.y + master.transform.position.y), master.transform.position.z);
        quad.transform.localScale = new Vector3((diff.x / 2) + quad.transform.localScale.x, (diff.y / 2) + quad.transform.localScale.y, quad.transform.localScale.z);

        Debug.Log(diff);

        //To save the old offset
        offsetOld = offset;

        Debug.Log("Old Offset = " + offsetOld);
        Debug.Log("new Offset = " + offset);
    }
}
}