IK还是一个很神奇和实用的东西啊，起码可以用代码来控制人物骨骼位置还是很爽的。因为不是动画师~
这篇可能跟Animator没啥关系了哈，都是代码层的。
看了一官方的案例，老的，有些问题，自己修改了一下，达到了效果。
官方建议把所有的IK操作放在OnAnimatorIK中进行。
如果我们要进行IK操作，先要绑定IK位置。IK能控制的官方都给了enum
然后我们要设置权重Weight，范围为0~1，这里都设成1
1 avatar.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 1.0f); 2 avatar.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 1.0f); 3 avatar.SetIKPositionWeight(AvatarIKGoal.LeftHand, 1.0f); 4 avatar.SetIKRotationWeight(AvatarIKGoal.LeftHand, 1.0f); 5 avatar.SetIKPositionWeight(AvatarIKGoal.RightFoot, 1.0f); 6 avatar.SetIKRotationWeight(AvatarIKGoal.RightFoot, 1.0f); 7 avatar.SetIKPositionWeight(AvatarIKGoal.RightHand, 1.0f); 8 avatar.SetIKRotationWeight(AvatarIKGoal.RightHand, 1.0f); 9 avatar.SetLookAtWeight(1.0f, 0.3f, 1.0f, 0.5f);
如果我们把LeftFoot的权重设为0，则会出现以下情况
在官方给的脚本中IK的绑定并没有在OnAnimatorIK中，而放到了Update中，然后就出现了绑定失败的问题。
所以我把他们都放到了OnAnimatorIK中。就可以了。
关于IK的操作~，给的少。
1 //设置右手IK位置 2 avatar.SetIKPosition(AvatarIKGoal.RightHand, rightHandObj.position); 3 //设置右手IK旋转 4 avatar.SetIKRotation(AvatarIKGoal.RightHand, rightHandObj.rotation); 5 //获取右手IK位置 6 rightHandObj.position = avatar.GetIKPosition(AvatarIKGoal.RightHand); 7 //获取右手IK旋转 8 rightHandObj.rotation = avatar.GetIKRotation(AvatarIKGoal.RightHand);
上完整代码~ （ikActive）没开启时球跟随人，开启时人跟随球。
1 using UnityEngine;
2 using System.Collections;
3
4 public class MyIK : MonoBehaviour {
5
6 public Transform bodyObj = null;
7 public Transform leftFootObj = null;
8 public Transform rightFootObj = null;
9 public Transform leftHandObj = null;
10 public Transform rightHandObj = null;
11 public Transform lookAtObj = null;
12 private Animator avatar;
13 public bool ikActive = false;
14
15 void Start()
16 {
17 avatar = GetComponent<Animator>();
18 }
19
20 void OnAnimatorIK(int layerIndex)
21 {
22 if (avatar == null) return;
23
24 if (ikActive)
25 {
26 avatar.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 0.0f);
27 avatar.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 1.0f);
28 avatar.SetIKPositionWeight(AvatarIKGoal.LeftHand, 1.0f);
29 avatar.SetIKRotationWeight(AvatarIKGoal.LeftHand, 1.0f);
30 avatar.SetIKPositionWeight(AvatarIKGoal.RightFoot, 1.0f);
31 avatar.SetIKRotationWeight(AvatarIKGoal.RightFoot, 1.0f);
32 avatar.SetIKPositionWeight(AvatarIKGoal.RightHand, 1.0f);
33 avatar.SetIKRotationWeight(AvatarIKGoal.RightHand, 1.0f);
34 avatar.SetLookAtWeight(1.0f, 0.3f, 1.0f, 0.5f);
35
36 if (bodyObj != null)
37 {
38 avatar.bodyPosition = bodyObj.position;
39 avatar.bodyRotation = bodyObj.rotation;
40 }
41
42 if (leftHandObj != null)
43 {
44 avatar.SetIKPosition(AvatarIKGoal.LeftHand, leftHandObj.position);
45 avatar.SetIKRotation(AvatarIKGoal.LeftHand, leftHandObj.rotation);
46 }
47 if (rightFootObj != null)
48 {
49 avatar.SetIKPosition(AvatarIKGoal.RightFoot, rightFootObj.position);
50 avatar.SetIKRotation(AvatarIKGoal.RightFoot, rightFootObj.rotation);
51 }
52 if (leftFootObj != null)
53 {
54 avatar.SetIKPosition(AvatarIKGoal.LeftFoot, leftFootObj.position);
55 avatar.SetIKRotation(AvatarIKGoal.LeftFoot, leftFootObj.rotation);
56 }
57 if (rightHandObj != null)
58 {
59 avatar.SetIKPosition(AvatarIKGoal.RightHand, rightHandObj.position);
60 avatar.SetIKRotation(AvatarIKGoal.RightHand, rightHandObj.rotation);
61 }
62
63 if (lookAtObj != null)
64 avatar.SetLookAtPosition(lookAtObj.position);
65 }
66 else
67 {
68 if (bodyObj != null)
69 {
70 bodyObj.position = avatar.bodyPosition;
71 bodyObj.rotation = avatar.bodyRotation;
72 }
73
74 if (leftFootObj != null)
75 {
76 leftFootObj.position = avatar.GetIKPosition(AvatarIKGoal.LeftFoot);
77 leftFootObj.rotation = avatar.GetIKRotation(AvatarIKGoal.LeftFoot);
78 }
79
80 if (rightFootObj != null)
81 {
82 rightFootObj.position = avatar.GetIKPosition(AvatarIKGoal.RightFoot);
83 rightFootObj.rotation = avatar.GetIKRotation(AvatarIKGoal.RightFoot);
84 }
85
86 if (leftHandObj != null)
87 {
88 leftHandObj.position = avatar.GetIKPosition(AvatarIKGoal.LeftHand);
89 leftHandObj.rotation = avatar.GetIKRotation(AvatarIKGoal.LeftHand);
90 }
91
92 if (rightHandObj != null)
93 {
94 rightHandObj.position = avatar.GetIKPosition(AvatarIKGoal.RightHand);
95 rightHandObj.rotation = avatar.GetIKRotation(AvatarIKGoal.RightHand);
96 }
97
98 if (lookAtObj != null)
99 {
100 lookAtObj.position = avatar.bodyPosition + avatar.bodyRotation * new Vector3(0, 0.5f, 1);
101 }
102 avatar.SetIKPositionWeight(AvatarIKGoal.LeftFoot, 0);
103 avatar.SetIKRotationWeight(AvatarIKGoal.LeftFoot, 0);
104 avatar.SetIKPositionWeight(AvatarIKGoal.LeftHand, 0);
105 avatar.SetIKRotationWeight(AvatarIKGoal.LeftHand, 0);
106 avatar.SetIKPositionWeight(AvatarIKGoal.RightFoot, 0);
107 avatar.SetIKRotationWeight(AvatarIKGoal.RightFoot, 0);
108 avatar.SetIKPositionWeight(AvatarIKGoal.RightHand, 0);
109 avatar.SetIKRotationWeight(AvatarIKGoal.RightHand, 0);
110 avatar.SetLookAtWeight(0.0f);
111 }
112 }
113
114 }
附一个彩蛋，IK有意思~~呵呵~ o(*￣▽￣*)ブ
时间： 2024-12-13 03:36:08