// Scroll main texture based on time
    var scrollSpeed : float = 0.5;
    function Update() {
        var offset : float = Time.time * scrollSpeed;
        renderer.material.mainTextureOffset = Vector2 (offset, 0);
    }

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
    public float scrollSpeed = 0.5F;
    void Update() {
        float offset = Time.time * scrollSpeed;
        renderer.material.mainTextureOffset = new Vector2(offset, 0);
    }
}

import UnityEngine
import System.Collections

class example(MonoBehaviour):

    public scrollSpeed as single = 0.5F

    def Update():
        offset as single = (Time.time * scrollSpeed)
        renderer.material.mainTextureOffset = Vector2(offset, 0)