using System.Collections; using System.Collections.Generic; using System.IO; using UnityEngine; using UnityEngine.UI; public class WebCamera : MonoBehaviour { [Tooltip("返回的照片数据,根据返回的照片,进行照片的识别和比对认证等等!"), Space(5)] [Header("摄像头拍摄的照片"),] public WebCamTexture camTexture;//摄像头拍下的图片数据 [Header("摄像头设备名")] private WebCamDevice[] devices; [Tooltip("USB摄像头设备"), Space(5)] [Header("摄像头设备名")] public string deviceName;//摄像头设备名称 public static Texture2D tex2D; public bool isClick;//是否点击了按钮 public static float ScreenShotTexture2D = 0f;//截取到图片编号(名称) public Text DebugScreenShotText;//用于输出打印截图的名称(为了效验) //初始化摄像头显示的图像的大小 private void Start() { isClick = false; camTexture = new WebCamTexture(deviceName, 800, 600, 60); } //通过GUI绘制摄像头要显示的窗口 private void OnGUI() { //首先根据摄像头展示的画面来判断摄像头是否存在 if(isClick == true&&camTexture != null) { //绘制画面(Screen.width / 2 - 150f, Screen.height / 2 - 290,这里是画面距离场景的高和宽的限制) //800, 600是和camTexture的画面一样大的绘制窗口 GUI.DrawTexture(new Rect(Screen.width / 2 - 150f, Screen.height / 2 - 290, 800, 600), camTexture); } if(isClick == false && camTexture != null)//不显示画面(没写这个步骤之前有个坑) { GUI.DrawTexture(new Rect(Screen.width / 2 - 150f, Screen.height / 2 - 290, 0, 0), camTexture); } } //打开摄像机的方法 public void OpenWebCamDevice() { isClick = true; if(isClick == true) { //用户授权打开摄像头 if (Application.HasUserAuthorization(UserAuthorization.WebCam)) { devices = WebCamTexture.devices;//显示画面的设备就是要打开的摄像头 deviceName = devices[0].name;//获取到设备名称 camTexture.Play();//开启摄像头 } } } //关闭摄像头 public void CloseWebCamDevice() { if(isClick== true && camTexture != null) { isClick = false; } } //截图按钮事件 public void OnClickBtnScreenShotTex2D() { OpenWebCamDevice();//先打开摄像头 Invoke("StartScreenShot", 3f);//几秒后截图 } void StartScreenShot() { camTexture.Pause();//截图暂停一下 StartCoroutine("ScreenShot");//启动协程截图 } IEnumerator ScreenShot() { yield return new WaitForEndOfFrame();//等某一帧结束 tex2D = new Texture2D(800, 600, TextureFormat.RGB24, true);//截图的大小 tex2D.ReadPixels(new Rect(Screen.width / 2 - 150, Screen.height / 2 - 290, 800, 600), 0, 0, false);//截取的区域 tex2D.Apply(); byte[] by = tex2D.EncodeToJPG();//将截取到的图片转换成字节数据 camTexture.Play();//摄像头继续开启 ScreenShotTexture2D = Time.time; File.WriteAllBytes(Application.dataPath + "/ScreenShot/" + ScreenShotTexture2D + ".jpg", by); DebugScreenShotText.text = ScreenShotTexture2D.ToString(); Debug.Log("当前截取到图片名称为:" + ScreenShotTexture2D); } }
Unity摄像头截图功能演示
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转载自blog.csdn.net/qq_38962400/article/details/79615289
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