给定一架飞机模型，需要分析该模型中，各个3D物体的面数和三角形数，目的是用于观察哪些物体面数过多，需要减面。
一、模型面数分析
二、脚本代码
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;
using System.Linq;/// <summary>
/// 计算面数：计算物体的面数，用于模型面数分析，有右键菜单进行
/// </summary>
public class JiSuanMianShu : MonoBehaviour
{/// <summary>/// 部件信息/// </summary>[Serializable]public class PartInfo{/// <summary>/// 部件对象/// </summary>[SerializeField][Header("部件对象")]public GameObject part;/// <summary>/// 三角形面数/// </summary>[SerializeField][Header("三角形面数")]public int trianglesNum;/// <summary>/// 顶点数/// </summary>[SerializeField][Header("顶点数")]public int vertexNum;}/// <summary>/// 物体的root/// </summary>[Header("物体的root")]public GameObject root;/// <summary>/// 计算结果：部件信息表/// </summary>[Header("计算结果：部件信息表")]public List<PartInfo> partsInfos = new List<PartInfo>();#if UNITY_EDITOR[ContextMenu("分析模型")]
#endifvoid Load(){partsInfos.Clear();//@@所有的物体var allObjs = root.GetComponentsInChildren<Transform>().ToList();Debug.Log($"【1】====子物体的数量：{allObjs.Count} 时间戳： {Time.realtimeSinceStartup}");foreach (var go in allObjs){if (go.GetComponent<MeshFilter>() == null) continue;var pi = new PartInfo();pi.part = go.gameObject;pi.trianglesNum = go.GetComponent<MeshFilter>().sharedMesh.triangles.Length;pi.vertexNum = go.GetComponent<MeshFilter>().sharedMesh.vertexCount;partsInfos.Add(pi);}partsInfos.Sort((a,b)=>a.trianglesNum.CompareTo(b.trianglesNum));}
}
