unity3D中 material中tiling和offset属性解释

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class animspite : MonoBehaviour
 5 {
 6 
 7 
 8     public int totolFrame;//总帧数，即多少帧
 9     public int fbs;//帧速度 即 1秒运行多少帧
10     public int rowNumber; //几行
11     public int colNumber; //几列
12     public bool isDes = false; //是否播放一次就销毁对象
13     // Use this for initialization
14     void Start()
15     {
16         //判断当前平台
17         #if UNITY_EDITOR
18                 Debug.Log("Unity Editor");
19         #endif
20 
21         #if UNITY_IPHONE
22                 Debug.Log("Iphone");
23         #endif
24 
25         #if UNITY_STANDALONE_OSX
26                 Debug.Log("Stand Alone OSX");
27         #endif
28 
29         #if UNITY_STANDALONE_WIN
30                 Debug.Log("Stand Alone Windows");
31         #endif
32     }
33 
34     // Update is called once per frame
35     void Update()
36     {
37         int index = (int)(Time.time * fbs);
38 
39         index = index % totolFrame;
40 
41         float sizeX = 1.0f / colNumber;
42         float sizeY = 1.0f / rowNumber;
43         Vector2 size = new Vector2(sizeX, sizeY);
44 
45         float uIndex = index % colNumber;
46         float vIndex = index / colNumber;
47 
48         float offsetX = uIndex * size.x;
49         float offsetY = (1.0f - size.y) - (vIndex * size.y);
50         //offsetY = 1.0f * vIndex / rowNumber;
51 
52         Vector2 offset = new Vector2(offsetX, offsetY);
53 
54         transform.renderer.material.mainTextureScale = size;
55         transform.renderer.material.mainTextureOffset = offset;
56 
57 
58         if (isDes)
59         {
60             if (Time.time > 1)
61             {
62                 Destroy(this.gameObject);
63             }
64         }
65     }
66 }