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首先做一个预设，假设命名为line，

添加LineRender组件，添加材质，让其可以正常显示

把line预设保存在Assets/Resources目录中

接下来创建一个LineRenderTest.cs脚步，挂到摄像机上。

脚本如下：

using UnityEngine;using System.Collections;using Holoville.HOTween;public class LineRenderTest: MonoBehaviour {    private LineRenderer m_lineRander;    private Vector3 m_curPos;    void Start()    {        // 加载资源        GameObject lineObjPrefab = Resources.Load("line",typeof(GameObject)) as GameObject;        if (lineObjPrefab == null)        {            Debug.LogError("lineObjPrefab == null");        }        // 实例化        GameObject lineObj = GameObject.Instantiate(lineObjPrefab) as GameObject;        m_lineRander = lineObj.GetComponent
   
    ();        if (m_lineRander != null)        {            // 设置起点和终点            m_lineRander.transform.localPosition = Vector3.zero;            m_lineRander.SetVertexCount(2);            m_lineRander.SetPosition(0, new Vector3(0, 0, 0));            m_lineRander.SetPosition(1, new Vector3(0, 0, 0));            startMove();        }    }    private void startMove()    {        // 使用HoTween对终点进行插值变换        TweenParms tp = new TweenParms();        tp.Prop("CurPos", new Vector3(50, 100, 100));        tp.Ease(EaseType.Linear);        tp.SpeedBased(true);        tp.OnComplete(moveEnd);        HOTween.To(this, 100f, tp);    }    private void moveEnd()    {        Debug.Log("moveEnd");    }    public Vector3 CurPos    {        get { return m_curPos; }        set         {            m_curPos = value;            if (m_lineRander != null)            {                m_lineRander.SetPosition(1, m_curPos);            }        }    }}
   

搞定

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