Player World Axis Control

using UnityEngine;
using System.Collections;

public class PlayerWorldAxisControl : MonoBehaviour
{

    Rigidbody rb;
    public float moveSpeed = 5;

    // Use this for initialization
    void Start()
    {
        rb = GetComponent<Rigidbody>();
    }

    // Update is called once per frame
    void Update()
    {
        float h = Input.GetAxis("Horizontal");
        float v = Input.GetAxis("Vertical");

        float fallSpeed = rb.velocity.y;

        Vector3 newVelocity = new Vector3(h, 0, v) * moveSpeed;
        newVelocity.y = fallSpeed;
        rb.velocity = newVelocity;

        transform.rotation = Quaternion.LookRotation(new Vector3(h, 0, v));

    }
}