unity 在Mesh中的顶点或者mesh 三角形的中点生成物体

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using UnityEngine;using System.Collections;using System.Collections.Generic;public class MeshPoint : MonoBehaviour {    public GameObject cubePrefab;    private Vector3[] verticals;    private List<Vector3> points;    public Transform cubeperent;    private float randomOffect;    private Vector3 pos;    private Vector3 rotation;    private float randomRotation;    private int[] triangleArr;    string triangle;    Mesh mesh;// Use this for initializationvoid Start () {        mesh = GetComponent<MeshFilter>().mesh;        cubeperent = GameObject.Find("Cubes").transform;                //*****************************************************************三角形两个顶点的中点        triangleArr = mesh.triangles;        points = new List<Vector3>(mesh.vertices);        //三角形的个数        int size = mesh.triangles.Length;        for(int i=0;i<200;i++ )        {            //一个三角形、三个点(第几个三角形)            int tt = Random.Range(0,size/3);            int index1= triangleArr[3 * tt];            int index2= triangleArr[3 * tt+1];            Debug.Log(index1+"  "+index2);                       //那个顶点            Vector3 point1 = points[index1];            Vector3 point2 = points[index2];            Debug.Log(point1 + "  " + point2);            //中点            Vector3 point3 = (point1 +point2) / 2.0f;            Instantiate(cubePrefab, point3, Quaternion.Euler(rotation), cubeperent);        }                    cubeperent.transform.position = new Vector3(0, 119.4179f, 0);        cubeperent.transform.rotation = Quaternion.Euler(new Vector3(-90.26f, 0, 0));        //----------------------------------------------------------------------------------------------------        //Debug.Log(GetComponent<MeshFilter>().mesh.vertices.Length);        //******************************************************************************************根据顶点        //verticals = GetComponent<MeshFilter>().mesh.vertices;        //points = new List<Vector3>(verticals);        //for (int j = 0; j < 400; j++)        //{        //    int a = Random.Range(0, points.Count);        //    randomOffect = Random.Range(-0.4f,0.4f);        //    randomRotation = Random.Range(0,360);                    //    pos = new Vector3(points[a].x + randomOffect, points[a].y+randomOffect, points[a].z + randomOffect);        //    rotation = new Vector3(transform.rotation.x + randomRotation, transform.rotation.y + randomRotation, transform.rotation.z + randomRotation);        //    Instantiate(cubePrefab, pos, Quaternion.Euler(rotation), cubeperent);        //    points.RemoveAt(a);        //}        //*******************************************************************************************************        cubeperent.transform.position = new Vector3(0, 119.4179f, 0);        cubeperent.transform.rotation = Quaternion.Euler(new Vector3(-90.26f, 0, 0));}// Update is called once per framevoid Update () {}}
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