static function LookRotation (forward : Vector3, upwards : Vector3 = Vector3.up) : Quaternion

Description描述

Creates a rotation that looks along forward with the the head upwards along upwards

创建一个旋转，沿着forward（z轴）并且头部沿着upwards（y轴）的约束注视。也就是建立一个旋转，使z轴朝向view  y轴朝向up。

Logs an error if the forward direction is zero.

如果forward方向是0，记录一个错误。

var vector = Vector3.forward * Distance；

vector  = ro * vector；

var pos = transform.position - vector; 

CameraGo.transform.position = pos;
CameraGo.transform.rotation = ro;

1 //相机的俯仰角和偏航角，Y方向偏航和目标对象一致
2 Quaternion ro = Quaternion.Euler(Pitch, transform.rotation.eulerAngles.y, 0);
3 //给向量赋予旋转
4 var distanceVector = ro * Vector3.forward * Distance;
5 var pos = transform.position - distanceVector;
6 CameraGo.transform.position = pos;
7 CameraGo.transform.rotation = ro;

//delta就是围绕角色旋转的旋转角度0~360.

Quaternion ro = Quaternion.Euler(Pitch, transform.rotation.eulerAngles.y + delta, 0)

 1 　　　　 //角色移动
 2         void SmoothMove()
 3         {
 4             Vector3[] vector3s = _transDataList;// CurvePath.PathControlPointGenerator(_transDataList);
 5             int sample = _transDataList.Length * SampleRate;
 6  
 7             _movePtg += Time.deltaTime * MoveSpeed;
 8  
 9             //曲线插值
10             transform.position = CurvePath.Interp(vector3s, _movePtg / sample);
11  
12             //计算当前位置到下一个坐标点的向量
13             var vector = (transform.position - _prevPos).normalized;
14             //取得向量的方向
15             var rotation = Quaternion.LookRotation(vector, Vector3.right).eulerAngles;
16             //去处x和z方向的影响，仅作用y方向偏转
17             rotation.x = 0;
18             rotation.z = 0;
19  
20             //将物体旋转到指向下一个坐标点的方向
21             transform.rotation = Quaternion.Euler(rotation);
22  
23  
24             _prevPos = transform.position;
25             if (_movePtg >= sample)
26             {
27                 ResetLocalData();
28             }
29         }
30  
31         //相机跟随
32         void FollowCamera()
33         {
34             if (CameraGo == null) return;
35  
36             if(UseFollow != 0)
37             {
38                 //相机的俯仰角和偏航角，Y方向偏航和目标对象一致
39                 Quaternion ro = Quaternion.Euler(Pitch, transform.rotation.eulerAngles.y + Slider, 0);
40  
41                 //给向量赋予旋转
42                 var distanceVector = ro * Vector3.forward * Distance;
43                 var pos = transform.position - distanceVector;
44                 CameraGo.transform.position = pos;
45                 CameraGo.transform.rotation = ro;
46                 return;
47             }
48         }