LateUpdate Camera

using UnityEngine;
using System.Collections;

public class CameraController : MonoBehaviour {

	public Transform playerTransform;
	private Vector3 offset;
	private Transform thisTransform;

	// Use this for initialization
	void Start () {
		thisTransform = this.transform;
		offset = new Vector3 (thisTransform.position.x, 0.0f, thisTransform.position.z);
	}

	// Update is called once per frame
	void LateUpdate () {
		thisTransform.position = playerTransform.position + offset;
	}
}