The texture offset of the main texture.

	// 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

public class Example(MonoBehaviour):

	public scrollSpeed as float = 0.5F

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