WebCamTexture を最小限で使うクラス

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

namespace Foo {
	public class WebCamComponent : MonoBehaviour {
		////// Demi-Constructors //////
		protected void Start() {
			var devices = WebCamTexture.devices;

			var validDevices = WebCamTexture
				.devices
				.Where(x => x.isFrontFacing == this.isUseFrontCamera);

			if (validDevices.Count() > 0) {
				var webcamTexture = new WebCamTexture(validDevices.First().name);
				this.targetMaterial.mainTexture = webcamTexture;
				webcamTexture.Play();
			}
		}

		////// Props //////
		[SerializeField] private Material targetMaterial = null;
		[SerializeField] private bool isUseFrontCamera = false;

		////// Methods //////
	}
}