Unity怎樣實(shí)現(xiàn)繞任意軸任意角度旋轉(zhuǎn)向量

Unity怎樣實(shí)現(xiàn)繞任意軸任意角度旋轉(zhuǎn)向量，很多新手對(duì)此不是很清楚，為了幫助大家解決這個(gè)難題，下面小編將為大家詳細(xì)講解，有這方面需求的人可以來學(xué)習(xí)下，希望你能有所收獲。

游戲中有一需求，就是一個(gè)矩形或者Cube繞著某一點(diǎn)旋轉(zhuǎn)任意角度，現(xiàn)在給出下面算法。

public static Vector3 RotateRound(Vector3 position, Vector3 center, Vector3 axis, float angle)  {    Vector3 point = Quaternion.AngleAxis(angle, axis) * (position - center);    Vector3 resultVec3 = center + point;    return resultVec3;  }

測(cè)試用例

using UnityEngine;using System.Collections; public class RotateTest : MonoBehaviour {  public LineRenderer line1;  public LineRenderer line2;  public float angle = 30f;    private Vector3 v0;  private Vector3 v1;  private Vector3 v2;  private Vector3 v3;  private Vector3 v4;  private Vector3 vCenter;  void Start()  {    v0 = new Vector3(3f,0f,1f);    v1 = new Vector3(1f, 0f, 3f);    v2 = new Vector3(4f, 0f, 6f);    v3 = new Vector3(6f, 0f, 4f);    vCenter = new Vector3(2f, 0f, 2f);  }  // Use this for initialization void Update ()   {   line1.SetVertexCount(5);    line1.SetPosition(0,v0);    line1.SetPosition(1,v1);    line1.SetPosition(2,v2);    line1.SetPosition(3,v3);    line1.SetPosition(4,v0);     line2.SetVertexCount(5);    Vector3 v01 = MathUtils.RotateRound(v0, vCenter, Vector3.up, angle);    Vector3 v11 = MathUtils.RotateRound(v1, vCenter, Vector3.up, angle);    Vector3 v21 = MathUtils.RotateRound(v2, vCenter, Vector3.up, angle);    Vector3 v31 = MathUtils.RotateRound(v3, vCenter, Vector3.up, angle);    Vector3 v41 = MathUtils.RotateRound(v4, vCenter, Vector3.up, angle);    line2.SetPosition(0, v01);    line2.SetPosition(1, v11);    line2.SetPosition(2, v21);    line2.SetPosition(3, v31);    line2.SetPosition(4, v01); }}

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