Unity 3d 控制对象可见性

Question

I have two game objects namely objA and objB where the later is a child of former. ObjA is active and B is disabled. I wanted objB to appear when pointer enters and to disappear when pointer exits. I want this not just once but forever. I have tried following code attached with objA to control visibility of objB but it's unsuccessful. Could someone help me plz:

using UnityEngine;
using UnityEngine.EventSystems;

public class eventvisbtoggle : MonoBehaviour
{
    public void PointerEnter(BaseEventData eventData)
    {
        ObjB.gameobject.SetActive(true);
    }

    public void PointerExit(BaseEventData eventData)
    {
        ObjB.gameobject.SetActive(false);
    }
}

Answer 1

There is a difference between the enabled state of a GameObject and whether or not its is visible. active determines whether or not scripts and other components attached to the object function. A component called the Renderer is what actually draws the GameObject in the scene. What you want to do is disable the Renderers that are attached to the object

foreach(var r in GetComponentsInChildren<Renderer>()){
    r.enabled = false;
}

Note that this is very slow code, you should assign the appropriate renderers to your script using the editor, but this is just an example.