レンダリングする順番を調整する

RenderQueueChildren.cs

using UnityEngine;
using System.Collections;

[AddComponentMenu("Custom/Scripts/Render/RenderQueueChildren")]
public class RenderQueueChildren : MonoBehaviour
{
	public int queue = 1;

	// Use this for initialization
	void Start ()
	{
		for (var i = 0; i < gameObject.transform.childCount; ++i) {
			GameObject child = gameObject.transform.GetChild (i).gameObject;
			if (!child.renderer) {
				continue;
			}
			
			child.renderer.material.renderQueue += queue;
		}
	}
	
	// Update is called once per frame
	void Update ()
	{
	
	}
}