unity调用摄像头的方法

http://blog.csdn.net/cocoa_china/article/details/10527995

using UnityEngine;
using System.Collections;
using System.Threading;

public class BtnControl : MonoBehaviour
{
    public WebCamTexture webTex;
    public string deviceName;

    void Start()
    {

    }
    void Update()
    {

    }

    //绘制按钮
    void OnGUI()
    {
        //开始按钮
        if(GUI.Button(new Rect(,,,),"click"))
        {
            //调用启动那个协程,开启摄像头
            StartCoroutine(CallCamera());
        }
        //重启开始
        if (GUI.Button(new Rect(,,,), "restart"))
        {
            webTex.Play();
        }
        //绘制摄像头的显示区域以及大小
        if(webTex!=null)
            GUI.DrawTexture(new Rect(,,,), webTex);
    }
///
///调用摄像头
///
    IEnumerator CallCamera()
    {
        yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);
        if(Application.HasUserAuthorization(UserAuthorization.WebCam))
        {
            WebCamDevice[] devices = WebCamTexture.devices;
            deviceName = devices[].name;
            //设置摄像机摄像的区域
            webTex=new WebCamTexture(deviceName,,,);
            webTex.Play();//开始摄像
        }
    }
}