WebCamTexture

Get this info through  unity Script。

Description

WebCam Textures are textures onto which the live video input is rendered.

WebCamTexture.devices

public static WebCamDevice[]  devices;

Description

Return a list of available devices.

This queries the system for the list of devices connected and it can be slow. You should cache this value by keeping a copy of the result if you want to use it repeatedly.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    // Gets the list of devices and prints them to the console.
    void Start() {
        WebCamDevice[] devices = WebCamTexture.devices;
        for( var i = 0 ; i < devices.Length ; i++ )
            Debug.Log(devices[i].name);        
    }
}

WebCamTexture.videoRotationAngle

Description

Returns an clockwise angle (in degrees), which can be used to rotate a polygon so camera contents are shown in correct orientation.

Note that if you want to use WebCamTextures in the web player, you need to get the user's permission to do so. Call Application.RequestUserAuthorization before creating a WebCamTexture.

// Starts a camera and assigns the texture to the current renderer.
// Updates polygon's orientation according to camera's given angle.
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public WebCamTexture webcamTexture;
    public Quaternion baseRotation;
    void Start() {
        webcamTexture = new WebCamTexture();
        Renderer renderer = GetComponent<Renderer>();
        renderer.material.mainTexture = webcamTexture;
        baseRotation = transform.rotation;
        webcamTexture.Play();
    }
    void Update() {
        transform.rotation = baseRotation * Quaternion.AngleAxis(webcamTexture.videoRotationAngle, Vector3.up);
    }
}