From 960bdf266259af3d07194d5e43025f5f577d7a66 Mon Sep 17 00:00:00 2001
From: atdunbg <atdunbg@qq.com>
Date: Wed, 23 Sep 2026 19:51:03 +0800
Subject: [PATCH] =?UTF-8?q?refactor:=20=E7=A7=BB=E9=99=A4=E8=B4=B4?=
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按用户决定：OBJ/FBX 按材质定义（MTL/assimp 槽位）写死读取，
不做文件名猜测补槽；贴图缺失走默认纹理 + INFO 日志可见。
补槽职责归将来手动材质编辑接口。
---
 Engine/src/Renderer/Model.cpp | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/Engine/src/Renderer/Model.cpp b/Engine/src/Renderer/Model.cpp
index 3c19415..caa97b4 100644
--- a/Engine/src/Renderer/Model.cpp
+++ b/Engine/src/Renderer/Model.cpp
@@ -280,28 +280,8 @@ Scope<Mesh> Model::ProcessMesh(aiMesh* mesh, const aiScene* scene)
                 texPaths[slot] = (modelDir / path.C_Str()).string();
             }
         }
-
-        // OBJ 常见导出遗漏：PBR 贴图在目录里但 MTL 未引用
-        //（backpack 的 roughness.jpg/ao.jpg 正是如此）。
-        // 约定文件名探测补槽，命中留 INFO 锚点
-        if (!m_IsGltf) {
-            const std::pair<const char*, Material::Slot> probes[] = {
-                {"roughness", Material::MetallicRoughness},
-                {"ao",        Material::Ao},
-                {"occlusion", Material::Ao},
-            };
-            for (const auto& [stem, slot] : probes) {
-                if (!texPaths[slot].empty()) continue;
-                for (const char* ext : {".jpg", ".png"}) {
-                    std::filesystem::path p = modelDir / (std::string(stem) + ext);
-                    if (std::filesystem::exists(p)) {
-                        texPaths[slot] = p.string();
-                        ENGINE_INFO("Probed {} texture: {}", stem, p.string());
-                        break;
-                    }
-                }
-            }
-        }
+        // 注：不做文件名探测/自动补槽——资产缺什么就是什么；
+        // 补槽是将来手动材质编辑的职责，加载期保持确定性
 
         // 材质加载可见性：贴图槽缺失/路径解析错误会静默退化成默认
         // 纹理（金属全没 → 塑料感），这里留下诊断锚点