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根据目前模型资源平均面数预算进行脚本制作，自动化校验模型面数是否符合规范。

*注：文件格式为.cs。需要放置在unity资源文件夹Assets>Editor下。

测试效果（拖一个fbx文件进unity时自动检测）：

以下为完整代码

using UnityEditor;
using UnityEngine;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System;public class FBXFaceBudgetValidator : AssetPostprocessor
{// 配置：不同前缀对应的面数预算（不区分大小写）private static readonly Dictionary<string, int> FACE_BUDGETS = new Dictionary<string, int>(StringComparer.OrdinalIgnoreCase){{"hair_", 4000},{"hat_", 5000},{"headdress_", 5000},{"caps_", 5000},{"clothing_", 6500},{"shoe_", 2000},{"glasses_", 1000},{"mask_", 1500},{"glove_", 1000},{"necklace_", 1000},{"scarf_", 1000},{"bracelet_", 2500},{"waist_", 1000},{"satchel_", 1000},{"backpack_", 2500},{"wing_", 2500},{"cape_", 1000},{"earring_", 300},{"instrument_",3000}};// 配置：忽略校验的文件夹路径private static readonly string[] IGNORE_PATHS = { "Assets/Models/LowPoly" };void OnPostprocessModel(GameObject model){try{string assetPath = assetImporter.assetPath;//Debug.Log($"[校验器] 开始处理: {assetPath}");if (IsInIgnorePath(assetPath)){Debug.Log($"[校验器] 已忽略路径: {assetPath}");return;}string fileName = Path.GetFileNameWithoutExtension(assetPath);var sortedPrefixes = FACE_BUDGETS.Keys.OrderByDescending(p => p.Length);int maxTriangles = -1;string matchedPrefix = "";foreach (var prefix in sortedPrefixes){if (fileName.StartsWith(prefix, StringComparison.OrdinalIgnoreCase)){maxTriangles = FACE_BUDGETS[prefix];matchedPrefix = prefix;break;}}if (maxTriangles == -1){string error = $"<color=red>命名错误</color>: {fileName}\n允许的前缀列表:\n{string.Join("\n", FACE_BUDGETS.Keys)}";Debug.LogError(error, model);return;}int totalTriangles = CalculateTriangleCount(model);Debug.Log($"[校验器] 总面数合规: {totalTriangles}");if (totalTriangles > maxTriangles){string error = $"<color=red>面数超标</color>: {fileName} ({matchedPrefix})\n预算: {maxTriangles}, 实际: {totalTriangles}";Debug.LogError(error, model);}}catch (Exception ex){Debug.LogError($"[校验器] 发生异常: {ex}");}}private bool IsInIgnorePath(string assetPath){try{string fullAssetPath = Path.GetFullPath(assetPath).Replace('\\', '/').TrimEnd('/');foreach (var path in IGNORE_PATHS){string fullIgnorePath = Path.GetFullPath(path).Replace('\\', '/').TrimEnd('/') + "/";if (fullAssetPath.StartsWith(fullIgnorePath, StringComparison.OrdinalIgnoreCase)){return true;}}return false;}catch{return false;}}private int CalculateTriangleCount(GameObject model){int triangles = 0;try{foreach (var renderer in model.GetComponentsInChildren<Renderer>(true)){Mesh mesh = null;// 处理SkinnedMeshRendererif (renderer is SkinnedMeshRenderer skinnedRenderer){mesh = skinnedRenderer.sharedMesh;}// 处理普通MeshRendererelse if (renderer is MeshRenderer){var filter = renderer.GetComponent<MeshFilter>();if (filter != null){mesh = filter.sharedMesh;}}if (mesh != null && mesh.triangles != null){triangles += mesh.triangles.Length / 3;}}}catch (Exception ex){Debug.LogError($"[面数计算] 发生异常: {ex}");}return triangles;}
}