Unity 3d转2d再转3d

我是用daydream平台测试的，目前别的平台还没有测试

大概思路是playerSettings 中设置勾选Virtual Reality Supported 后选着对应的平台这里选的是Daydream 

然后在转换平台时用下面的方法加载到对应的平台，

UnityEngine.XR.XRSettings.LoadDeviceByName("None")

UnityEngine.XR.XRSettings.LoadDeviceByName("daydream");

并设置UnityEngine.XR.XRSettings.enabled = true;就可以切换到vr模式了

在同一个场景中增加两个MainCamera，

下面把脚本附上

using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.EventSystems; using UnityEngine.XR; public class Manger3dTo2d : MonoBehaviour {     private bool is3d = true;     public GameObject canvas;     public GameObject mainCamare;     public GameObject camare;     //public GameObject evenSystem;     public TextMesh tm;     //public GameObject hand;// Use this for initializationvoid Start (){    tm.text = XRSettings.loadedDeviceName;    Debug.Log(XRSettings.loadedDeviceName + "333");    is3d = true;canvas.SetActive(false);    camare.SetActive(false);}// Update is called once per framevoid Update () {         if ((GvrControllerInput.AppButtonUp || Input.GetKeyUp(KeyCode.A)) && is3d)    {        canvas.SetActive(true);        is3d = false;                     //UnityEngine.XR.XRSettings.enabled = false;        XRSettings.LoadDeviceByName("None");             Debug.Log(XRSettings.loadedDeviceName);        tm.text = XRSettings.loadedDeviceName;        //evenSystem.GetComponent<GvrPointerInputModule>().enabled = false;        //evenSystem.GetComponent<StandaloneInputModule>().enabled = true;             mainCamare.SetActive(false);             camare.SetActive(true);             //hand.SetActive(false);    }         if (GvrControllerInput.ClickButtonDown || Input.GetKeyUp(KeyCode.B))         {             To3d();         }}     public void To3d()     {                 StartCoroutine(VrOn());         }     IEnumerator VrOn()     {         XRSettings.LoadDeviceByName("daydream");         Debug.Log(XRSettings.loadedDeviceName + "1111"); #if UNITY_EDITOR #endif #if UNITY_ANDROID         yield return new WaitUntil(() => XRSettings.loadedDeviceName == "daydream");//到这一步pc不能测试了 #endif         Debug.Log(XRSettings.loadedDeviceName + "222");         yield return null;         XRSettings.enabled = true;         Debug.Log(XRSettings.loadedDeviceName);         tm.text = XRSettings.loadedDeviceName;         canvas.SetActive(false);         is3d = true;         mainCamare.SetActive(true);         camare.SetActive(false);         //hand.SetActive(true);         //evenSystem.GetComponent<GvrPointerInputModule>().enabled = true;         //evenSystem.GetComponent<StandaloneInputModule>().enabled = false;     }     public void ButtonClick()     {         Debug.Log("这是2d场景");     } }