Unity android front camera

Question

how could i change this code to access front cam, currently it shows me back cam.? I have tried some different things, but doesn't seem to be working.

    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 ();
        }


    }

score 3 · Accepted Answer · answered Oct 08 '17 at 10:52

The code that you have currently creates a WebcamTexture from the default device, as you are using the constructor without any parameters which passes a null string for the deviceName.

If you check the WebCamTexture documentation, it lists a constructor that you can provide a deviceName. Now, all you have to do is to:

Determine the deviceName for the front camera.
Use the deviceName for the front camera while you are creating your WebCamTexture object.

You can query the device names for the available cameras as follows:

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

Also, the isFrontFacing property of WebCamDevice would also help to query whether the camera you are using is the front camera. Therefore, a naive way of making sure that the first front-facing camera that is found will be used for your case would be:

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 ();
    }
}

Note that, by removing the break statement, you will use the front-facing camera that is listed last. Also, it would be a good practice to make frontCamName a private property and initialize it in the Start() function.

Unity android front camera

1 Answers1