提供幾個 HTC 外掛 

1.SteamVR

2.VRTK - SteamVR Unity Toolkit

3.HTCUnity

連結：http://pan.baidu.com/s/1mhSt83Q 密碼：0e2p

帶上HTC眼鏡後盯住物體幾秒，然後彈出一個縮減時間的UI，在時間未結束以前移開視線清0

看物體觸發事件的效果的原理其實就是從攝像機上發出一條射線，然後判斷他碰到的是否是你想要觸發的物體，接著發出對應事件即可

using UnityEngine;
using System.Collections;
using UnityEngine.UI; public class VRCameraRay : MonoBehaviour
{
    [SerializeField]
    private GameObject m_Canvas;
    [SerializeField]
    private float _myTime = 3;//時間總量
    [SerializeField]
    private GameObject m_cd;     [SerializeField]
    private Image m_Image;
   
    void Update()
    {
        // 以攝像機所在位置為起點，建立一條向前發射的射線 
        Ray ray = new Ray(transform.position, transform.forward);
        RaycastHit hit;
        if (Physics.Raycast(ray, out hit, Mathf.Infinity))
        {
            // 如果射線與平面碰撞，列印碰撞物體資訊 
            //Debug.Log("碰撞物件: " + hit.collider.name);
            if (hit.collider.name == "Debris")
            {
                m_cd.gameObject.SetActive(true);
                CD();
                Countdown();
            }
            if (hit.collider.name != "Debris") {
                m_cd.gameObject.SetActive(false);
                _myTime = 3;
                m_Image.fillAmount = 1;
            }
            // 在場景檢視中繪製射線 
            Debug.DrawLine(ray.origin, hit.point, Color.red);
        }
    }
   
    //====================倒計時=====================
    void Countdown()
    {
        _myTime -= Time.deltaTime;//時間總量-=完成一幀所用時間
        if (_myTime <= 0)
        {
            m_Canvas.gameObject.SetActive(true);
        }
    }     //============技能冷卻==============
    private bool m_isColding = true;
    void CD()
    {
        if (m_isColding)
        {
            m_Image.fillAmount -= (1.0f / _myTime) * Time.deltaTime;
            if (m_Image.fillAmount == 0)
            {
                m_cd.gameObject.SetActive(false);
            }
        }
    }
} 將本指令碼掛在到  Camera (eye)   m_Image