unity调用摄像头

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using UnityEngine;using System.Collections;using System.IO;using System.Runtime.Serialization;using System.Runtime.Serialization.Formatters.Binary;using System.Threading;public class paizhao : MonoBehaviour{    public string deviceName;    //接收返回的图片数据      WebCamTexture tex;    public Texture2D _tex;    void OnGUI()    {        if (GUI.Button(new Rect(10, 20, 100, 40), "开启摄像头"))        {            // 调用摄像头              StartCoroutine(start());        }        if (GUI.Button(new Rect(10, 70, 100, 40), "捕获照片"))        {            //捕获照片              tex.Pause();            StartCoroutine(getTexture());        }        if (GUI.Button(new Rect(10, 120, 100, 40), "再次捕获"))        {            //重新开始              tex.Play();        }        if (GUI.Button(new Rect(120, 20, 80, 40), "录像"))        {            //录像              StartCoroutine(SeriousPhotoes());        }        if (GUI.Button(new Rect(10, 170, 100, 40), "停止"))        {            //停止捕获镜头              tex.Stop();            StopAllCoroutines();        }        if (tex != null)        {            // 捕获截图大小               —距X左屏距离   |   距Y上屏距离                GUI.DrawTexture(new Rect(Screen.width / 2 - 150, Screen.height / 2 - 190, 280, 200), tex);        }    }    /// <summary>      /// 捕获窗口位置      /// </summary>      public IEnumerator start()    {        yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);        if (Application.HasUserAuthorization(UserAuthorization.WebCam))        {            WebCamDevice[] devices = WebCamTexture.devices;            deviceName = devices[0].name;            tex = new WebCamTexture(deviceName, 300, 300, 12);            tex.Play();        }    }    /// <summary>      /// 获取截图      /// </summary>      /// <returns>The texture.</returns>      public IEnumerator getTexture()    {        yield return new WaitForEndOfFrame();        Texture2D t = new Texture2D(400, 300);        t.ReadPixels(new Rect(Screen.width / 2 - 200, Screen.height / 2 - 50, 360, 300), 0, 0, false);        //距X左的距离        距Y屏上的距离          // t.ReadPixels(new Rect(220, 180, 200, 180), 0, 0, false);          t.Apply();        byte[] byt = t.EncodeToPNG();        //      File.WriteAllBytes(Application.dataPath+"/Photoes/"+Time.time+".jpg",byt);          tex.Play();    }    /// <summary>      /// 连续捕获照片      /// </summary>      /// <returns>The photoes.</returns>      public IEnumerator SeriousPhotoes()    {        while (true)        {            yield return new WaitForEndOfFrame();            Texture2D t = new Texture2D(400, 300, TextureFormat.RGB24, true);            t.ReadPixels(new Rect(Screen.width / 2 - 180, Screen.height / 2 - 50, 360, 300), 0, 0, false);            t.Apply();            print(t);            byte[] byt = t.EncodeToPNG();            //          File.WriteAllBytes(Application.dataPath + "/MulPhotoes/" + Time.time.ToString().Split('.')[0] + "_" + Time.time.ToString().Split('.')[1] + ".png", byt);              Thread.Sleep(300);        }    }}
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