/************************************************************
  Copyright (C), 2007-2017,BJ Rainier Tech. Co., Ltd.
  FileName: RayCastHitControl.cs
  Author:    Version :1.0       Date: 2018/8/15
  Description:  滑鼠進入物體顯示標籤名（UI位置隨3D物體的位置）
************************************************************/
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;

public class ShowBendWoodName : MonoBehaviour
{
    private Vector3 namePosInScreen;
    public Vector3 namePosOffset;//標籤偏移量
    public GameObject prefabNameSprite;//預製體
    public Transform nameLableFather;//標籤父類
    private GameObject nameLable;
    // Use this for initialization
    void Start()
    {
        nameLable = Instantiate(prefabNameSprite, new Vector3(namePosInScreen.x, namePosInScreen.y, 0f), Quaternion.identity) as GameObject;
        nameLable.transform.SetParent(nameLableFather);
        nameLable.name = gameObject.name;
        nameLable.SetActive(false);
        nameLable.transform.FindChild("Text").GetComponent<Text>().text = gameObject.name;
    }
    void OnMouseEnter() {
        nameLable.SetActive(true);
        OverlayPosition();
    }
    void OnMouseExit()
    {
        nameLable.SetActive(false);

    }
    void OverlayPosition() {
        namePosInScreen = Camera.main.WorldToScreenPoint(gameObject.transform.position);
        nameLable.GetComponent<RectTransform>().position = new Vector3(namePosInScreen.x, namePosInScreen.y, 0f) + namePosOffset;
    }
  
}

 

prefabNameSprite預製體 就是 一個擺設底板加文字