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(0,10,100,30),"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(0,80,100,30), "restart"))  
        {  
            webTex.Play();  
        }
        //绘制摄像头的显示区域以及大小
        if(webTex!=null)
            GUI.DrawTexture(new Rect(110,0,200,200), 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[0].name;  
            //设置摄像机摄像的区域  
            webTex=new WebCamTexture(deviceName,10,10,10);     
            webTex.Play();//开始摄像  
        }  
    } 
}