unity3d鼠标经过物体时变颜色，离开时恢复

using UnityEngine;
using System.Collections;

public class MouseEvent_Color : MonoBehaviour {

//物体初始颜色
private Color CubeColor;

private Texture CubeTexture;

private GameObject ObjCube;

// Use this for initialization
void Start () {

ObjCube = GameObject.Find("Cube");
ObjCube.renderer.material.shader = Shader.Find("Diffuse");
CubeColor = ObjCube.renderer.material.GetColor("_Color");
Debug.LogError("材质球颜色："+CubeColor);

CubeTexture = renderer.material.GetTexture("Cube");

}

// Update is called once per frame
void Update () {

}

/// <summary>
/// 鼠标经过
/// </summary>

//void OnMouseOver()
//{

//    // cubeobj.renderer.material.color = Color.red;
//    renderer.material.color = Color.red;

//}

/// <summary>
/// 鼠标进入
/// </summary>
void OnMouseEnter()
{

renderer.material.color = Color.red;

}

//鼠标离开

void OnMouseExit()
{
// renderer.material.SetTexture("Cube",CubeTexture);
renderer.material.color = CubeColor;

}
}

Shader "Diffuse" {
Properties {
_Color ("Main Color", Color) = (1,1,1,1)
_MainTex ("Base (RGB)", 2D) = "white" {}
}
SubShader {
Tags { "RenderType"="Opaque" }
LOD 200

Pass {
Name "FORWARD"
Tags { "LightMode" = "ForwardBase" }
Program "vp" {