统一android前置摄像头

Question

我怎么能改变这个代码来访问前摄像头，目前它显示给我后摄像头。？我试过一些不同的东西，但似乎没有用。

    if (isLocalPlayer)
    {
        if (this.gameObject.name == "Player 1") {
            WebCamTexture webcamTexture = new WebCamTexture ();
            Player1Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player1Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player1Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
            webcamTexture.Play ();
        } else if (this.gameObject.name == "Player 2") {
            WebCamTexture webcamTexture = new WebCamTexture ();
            Player2Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player2Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player2Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
            webcamTexture.Play ();
        } else if (this.gameObject.name == "Player 3") {
            WebCamTexture webcamTexture = new WebCamTexture ();
            Player3Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player3Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player3Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
            webcamTexture.Play ();
        } else if (this.gameObject.name == "Player 4") {
            WebCamTexture webcamTexture = new WebCamTexture ();
            Player4Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player4Image.GetComponent<RawImage> ().texture = webcamTexture;
            Player4Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
            webcamTexture.Play ();
        } else {
            Debug.Log ("All slots full!");
            GameObject.Destroy (this);
            Network.Disconnect ();
        }


    }

Answer 1

您当前从默认设备中创建WebcamTexture的代码，因为您使用的构造函数没有传递deviceName的空字符串的任何参数。

如果检查WebCamTexture文档，它将列出可以提供deviceName的构造函数。现在，你要做的就是：

1. 确定前摄像头的deviceName。
2. 在创建您的deviceName对象时，使用前面的摄像机使用WebCamTexture。

您可以查询可用相机的设备名称，如下所示：

var webCamDevices = WebCamTexture.devices;
foreach(var camDevice in webCamDevices){ 
    Debug.Log(camDevice.name);
}

此外，isFrontFacing属性WebCamDevice还将有助于查询您使用的相机是否是前置摄像机。因此，确保找到的第一个正面摄像机将用于您的情况的天真方法是：

if (isLocalPlayer)
{
    string frontCamName = null;
    var webCamDevices = WebCamTexture.devices;
    foreach(var camDevice in webCamDevices){ 
        if(camDevice.isFrontFacing){
            frontCamName = camDevice.name;
            break;
        }
    }
    if (this.gameObject.name == "Player 1") {
        WebCamTexture webcamTexture = new WebCamTexture (frontCamName);
        Player1Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player1Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player1Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
        webcamTexture.Play ();
    } else if (this.gameObject.name == "Player 2") {
        WebCamTexture webcamTexture = new WebCamTexture (frontCamName);
        Player2Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player2Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player2Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
        webcamTexture.Play ();
    } else if (this.gameObject.name == "Player 3") {
        WebCamTexture webcamTexture = new WebCamTexture (frontCamName);
        Player3Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player3Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player3Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
        webcamTexture.Play ();
    } else if (this.gameObject.name == "Player 4") {
        WebCamTexture webcamTexture = new WebCamTexture (frontCamName);
        Player4Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player4Image.GetComponent<RawImage> ().texture = webcamTexture;
        Player4Image.GetComponent<RawImage> ().material.mainTexture = webcamTexture;
        webcamTexture.Play ();
    } else {
        Debug.Log ("All slots full!");
        GameObject.Destroy (this);
        Network.Disconnect ();
    }
}

注意，通过删除break语句，您将使用前面列出的最后一个摄像头。另外，让frontCamName成为私有属性并在Start()函数中初始化它也是一种很好的做法。