ICEY/Assets/GameAssets/Games/icey/Scripts/SkeletonUtilitySubmeshRenderer.cs

using UnityEngine;
using System.Collections;

[ExecuteInEditMode]
public class SkeletonUtilitySubmeshRenderer : MonoBehaviour
{
    [System.NonSerialized]
    public Mesh mesh;
    public int submeshIndex = 0;
    public Material hiddenPassMaterial;
    Renderer cachedRenderer;
    MeshFilter filter;
    Material[] sharedMaterials;

    void Awake()
    {
        cachedRenderer = GetComponent<Renderer>();
        filter = GetComponent<MeshFilter>();
        sharedMaterials = new Material[0];
    }

    public void SetMesh(Renderer parentRenderer, Mesh mesh, Material mat)
    {
        if (cachedRenderer == null)
            return;

        cachedRenderer.enabled = true;
        filter.sharedMesh = mesh;
        if (cachedRenderer.sharedMaterials.Length != parentRenderer.sharedMaterials.Length)
        {
            sharedMaterials = parentRenderer.sharedMaterials;
        }

        for (int i = 0; i < sharedMaterials.Length; i++)
        {
            if (i == submeshIndex)
                sharedMaterials[i] = mat;
            else
                sharedMaterials[i] = hiddenPassMaterial;
        }

        cachedRenderer.sharedMaterials = sharedMaterials;
    }
}