使用LineRender绘制网格线

参考：https://www.xuanyusong.com/archives/561

可用于场景内变化的坐标数据的测试（浮空地块顶点数据一直在变）

 1 using System.Collections;
 2 using System.Collections.Generic;
 3 using UnityEngine;
 4 
 5 public class TestLineRender : MonoBehaviour {
 6     private Vector3 v0 = new Vector3(1.0f, 0.0f, 0.0f);
 7     private Vector3 v1 = new Vector3(0.0f, 1.0f, 0.0f);
 8     private Vector3 v2 = new Vector3(0.0f, 0.0f, 1.0f);
 9 
10     private LineRenderer lineRender = null;
11 
12     // Use this for initialization
13     void Start () 
14     {
15         lineRender = gameObject.AddComponent<LineRenderer>();
16         lineRender.material = new Material(Shader.Find("Sprites/Default"));
17         lineRender.startColor = Color.blue;
18         lineRender.endColor = Color.blue;
19         lineRender.startWidth = 0.01f;
20         lineRender.endWidth = 0.01f;
21         lineRender.useWorldSpace = true;
22         lineRender.positionCount = 4;
23     }
24 
25     // Update is called once per frame
26     void Update () 
27     {
28         lineRender.SetPosition(0, v0);
29         lineRender.SetPosition(1, v1);
30         lineRender.SetPosition(2, v2);
31         lineRender.SetPosition(3, v0);
32     }
33 }

改变自己