程式碼出自雨鬆MOMO的Blog。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class UIDepth : MonoBehaviour
{
    public UIFllow UIFllow;//UI跟隨物體移動，見前文

    private int offset;//距離

    public bool isUI = true;
    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
 

    void Update ()
    {
        offset = (int)UIFllow.offset;
        depth(-offset);

    }

    void depth(int order)
    {
        if (isUI)
        {
            Canvas canvas = GetComponent<Canvas>();
            if (canvas == null)
            {
                canvas = gameObject.AddComponent<Canvas>();
            }
            canvas.overrideSorting = true
 
;
            canvas.sortingOrder = order;
        }
        else
        {
            Renderer[] renders = GetComponentsInChildren<Renderer>();

            foreach (Renderer render in renders)
            {
                render.sortingOrder = order;
            }
        }
    }
}