the ClothRenderer.material dont't be change?

clothRender.renderer.material = this.renderer.material;

don’t work the line code.

this’s my code:

using UnityEngine;

using System.Collections;

[RequireComponent(typeof(InteractiveCloth))]
[RequireComponent(typeof(ClothRenderer))]

public class AttachInteractiveCloth : MonoBehaviour
{

public PrimitiveType defaultMesh;
public bool removeMehsRender = true;
public bool removeCollider = true;

void Awake()
{

    bool useDefaultMesh = (this.GetComponent<MeshFilter>() == null);

    GameObject useObject = useDefaultMesh ? GameObject.CreatePrimitive(defaultMesh) : this.gameObject;
    InteractiveCloth thisCloth = this.GetComponent<InteractiveCloth>();
    ClothRenderer clothRender = this.GetComponent<ClothRenderer>();
    MeshFilter thisMeshFilter = useObject.GetComponent<MeshFilter>();

    if (clothRender != null && this.renderer.material != null)
    {
        Debug.Log("cloth renderer");
        clothRender.renderer.material = this.renderer.material;  

    }

    if (thisCloth != null && thisMeshFilter != null)
    {
        thisCloth.mesh = thisMeshFilter.mesh;

        if (removeMehsRender && this.GetComponent<MeshRenderer>())
        {
            Destroy(this.GetComponent<MeshRenderer>());
        }

        if (removeCollider && this.collider)
        {
            Destroy(this.collider);
        }
    }

    if (useDefaultMesh)
    {
        Destroy(useObject);
    }
}

// Use this for initialization
void Start () 
{

}

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

}

}

try this
Material mat = this.renderer.material;
clothRender.renderer.material = mat;

thanks,but the problem doesn’t get resolved