虛擬仿真實驗常常會用到對模型簡單的旋轉跟縮放。

簡單實現了一下，有加阻尼效果，貼在需要旋轉的模型上便可。

 1 using UnityEngine;
 2 using System.Collections;
 3 
 4 public class modelController : MonoBehaviour {
 5     private float axisX;
 6     private float axisY;
 7 
 8     private float leap_Distance;
 9     bool iszuni;
10     bool isxuanzhuan;
11
 
     
12     float x;
13     float y;
14 
15     float f_beginSize;
16     Vector3 v_beginRotate;
17 
18     void Awake()
19     {
20         axisY  = 0;
21         axisX  = 0;
22         leap_Distance = f_beginSize = transform.localScale.x;
23         v_beginRotate = transform.localEulerAngles;
24     }
 
25 
26     void Update()
27     {
28         ZoomScale();
29         if (!StringTable.b_isModel)
30             return;
31         if (iszuni)
32         {
33             transform.localScale = Vector3.Lerp(transform.localScale, Vector3.one * leap_Distance, 0.2f);
34         }
35 
36         if (Input.GetMouseButton(0
 
))
37         {//鼠標按著左鍵移動 
38             y = Input.GetAxis("Mouse X") * 8;
39             x = Input.GetAxis("Mouse Y") * 8;
40             isxuanzhuan = true;
41         }
42         else
43         {
44             x = y = 0;
45         }
46         if (isxuanzhuan)
47         {
48             axisY = Mathf.Lerp(axisY, y,0.2f);
49             axisX = Mathf.Lerp(axisX, x,0.2f);
50             //旋轉角度（增加）
51             transform.Rotate(new Vector3(axisX, -axisY, 0), Space.World);
52         }
53     }
54 
55     
56     /// <summary>
57     /// 鼠標滾輪縮放物體的方法(Scale)
58     /// </summary>
59     void ZoomScale()
60     {
61         if (Input.GetAxis("Mouse ScrollWheel") != 0)
62         {
63             leap_Distance += Input.GetAxis("Mouse ScrollWheel") * f_beginSize;
64             //最大擴大2倍，最小縮小0.5倍
65             if (leap_Distance < (f_beginSize * 0.5f))
66             {
67                 leap_Distance = f_beginSize * 0.5f;
68             }
69             if (leap_Distance > f_beginSize * 2)
70             {
71                 leap_Distance = f_beginSize * 2;
72             }
73             iszuni = true;
74         }
75     }
76 
77     /// <summary>
78     /// 重置
79     /// </summary>
80     public void ResetScale()
81     {
82         iszuni = false;
83         leap_Distance = f_beginSize;
84         transform.localScale = Vector3.one * f_beginSize;
85         transform.localEulerAngles = v_beginRotate;
86     }
87 }

模型旋轉縮放