Unity Gizmos可視化輔助工具

所有gizmo繪制需要在腳本的OnDrawGizmos或OnDrawGizmosSelected里函數完成。

  OnDrawGizmos在每幀調用。所有在OnDrawGizmos中渲染的gizmos都是可見的。

  OnDrawGizmosSelected僅在腳本附加的物體被選擇時被調用。  

 

1. Gizmos.DrawLine

  從obj1到obj2之間畫一條綠色的線。

using UnityEngine;
using System.Collections;
public class DrawLineText : MonoBehaviour {

    public GameObject obj1;
    public GameObject obj2;
    
    void OnDrawGizmos()
    {
        Gizmos.color = Color.green;
        Gizmos.DrawLine( obj1.transform.position , obj2.transform.position );
    }
}

 

 

2.Gizmos.DrawRay

 從obj向上畫一條長度為10的射線

using UnityEngine;
using System.Collections;
public class DrawRayText : MonoBehaviour {

    public GameObject obj;
    void OnDrawGizmos()
    {
        Gizmos.color = Color.gray;
        Gizmos.DrawRay(obj.transform.position, Vector3.up * 10);  //10 是長度
    }
}

 

 

3.Gizmos.DrawCube

 在（0,1,0）處畫一個（1,1,1）大小的立方體

using UnityEngine;
using System.Collections;
public class DrawCubeText : MonoBehaviour {

      void OnDrawGizmos()
    {
        Gizmos.color = Color.red;
        Gizmos.DrawCube(Vector3.up , Vector3.one);
    }
}

 

 

4.Gizmos.DrawIcon

 在（0,0,0）處生成一個名字為002IMgZLzy6Mro7r94Ka2&690.jpg的Icon ，此圖片要放到Assets下的  Gizmos文件夾里才行。

using UnityEngine;
using System.Collections;
public class DrawIconText : MonoBehaviour {

      void OnDrawGizmos()
    {
        Gizmos.DrawIcon(Vector3.zero , "002IMgZLzy6Mro7r94Ka2&690.jpg");
    }
}