Unity3D调用摄像头显示当前拍摄画面

原地址：http://blog.csdn.net/awnuxcvbn/article/details/18621265
using UnityEngine;  
using System.Collections;  public class CameraTest : MonoBehaviour  
{  public WebCamTexture cameraTexture;  public string cameraName="";  private bool isPlay = false;  // Use this for initialization  void Start()  {  StartCoroutine(Test());  }  // Update is called once per frame  void Update()  {  }  IEnumerator Test()  {  yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);  if (Application.HasUserAuthorization(UserAuthorization.WebCam))  {  WebCamDevice[] devices = WebCamTexture.devices;  cameraName = devices[0].name;  cameraTexture = new WebCamTexture(cameraName, 400, 300, 15);  cameraTexture.Play();  isPlay = true;  }  }  void OnGUI()  {  if (isPlay)  {  GUI.DrawTexture(new Rect(0, 0, 400, 300), cameraTexture, ScaleMode.ScaleToFit);  }  }  
}