资产系统侧线第一波：ResolveProcedural 提为公共静态（键格式唯一定义点）；Inspector 程序化模型入口；修 Prefab hover 误导性 not loaded；Content Browser 模型拖拽 → Outliner 创建实体

App/editor/panels/AssetBrowserPanel.cpp

@@ -315,6 +315,16 @@ void AssetBrowserPanel::DrawFileList(const EditorContext& ctx,
             ImGui::EndDragDropSource();
         }
 
+        // 模型拖拽源：拖到 Outliner 落点创建带 MeshRenderer 的实体
+        //（kModelDragPayload；实体名 = 文件名）
+        if (item.kind == Kind::Model && ImGui::BeginDragDropSource())
+        {
+            ImGui::SetDragDropPayload(kModelDragPayload,
+                                      assetPath.c_str(), assetPath.size() + 1);
+            ImGui::TextUnformatted(name.c_str());
+            ImGui::EndDragDropSource();
+        }
+
         // 双击：.material 打开 Material Editor；.animctrl 打开
         // Controller Editor；model/HDR 进缓存预热（路径去重，重复
         // 双击零成本）；场景加载含环境恢复/选中清理流程，提示走
@@ -404,21 +414,26 @@ void AssetBrowserPanel::DrawFileList(const EditorContext& ctx,
                               std::localtime(&tt));
                 ImGui::Text("modified: %s", tmBuf);
             }
-            // 加载状态（只查询不触发加载；model/HDR 进过缓存才显示 loaded）
+            // 加载状态：只对"加载"型资产有意义（查询不触发加载）。
+            // Prefab 是实例化模板、Scene 走 File 菜单——显示 "not
+            // loaded" 会误导（曾让用户当成 bug）
             if (ctx.assets)
             {
-                const char* state = "not loaded";
+                if (item.kind == Kind::Model ||
-                if (item.kind == Kind::Model &&
+                    item.kind == Kind::Texture)
-                    ctx.assets->IsModelLoaded(assetPath))
                 {
-                    state = "loaded";
+                    const bool loaded =
+                        (item.kind == Kind::Model)
+                            ? ctx.assets->IsModelLoaded(assetPath)
+                            : ctx.assets->IsEnvironmentLoaded(assetPath);
+                    ImGui::Text("state: %s", loaded ? "loaded"
+                                                    : "not loaded");
                 }
-                else if (item.kind == Kind::Texture &&
+                else if (item.kind == Kind::Prefab)
-                         ctx.assets->IsEnvironmentLoaded(assetPath))
                 {
-                    state = "loaded";
+                    ImGui::TextDisabled(
+                        "template — drag into scene / double-click");
                 }
-                ImGui::Text("state: %s", state);
                 // 已加载的 model 展开资产数据概览（meshes=0 即纯动画
                 // 容器；未加载不显示——查询不触发加载）
                 if (item.kind == Kind::Model)

App/editor/panels/AssetBrowserPanel.h

@@ -23,6 +23,10 @@
 // 常量住源面板头
 inline constexpr const char* kPrefabDragPayload = "PREFAB_PATH";
 
+// 模型资产拖拽 payload（Content Browser 拖 .glb/.fbx/... → Outliner
+// 落点创建带 MeshRenderer 的实体；字符串 = 资产相对路径）
+inline constexpr const char* kModelDragPayload = "MODEL_PATH";
+
 class AssetBrowserPanel {
 public:
     void Draw(const EditorContext& ctx);

App/editor/panels/HierarchyPanel.cpp

@@ -49,6 +49,30 @@ namespace {
             *ctx.scene, *ctx.assets, path);
     }
 
+    // 模型拖入落点：创建带 MeshRenderer 的单实体（名字 = 文件名
+    // stem，默认位姿；模型句柄 = LoadModel 磁盘路径）。拖到节点下 =
+    // SetParent keepWorld；空白区 = 场景根。加载失败不建空实体
+    entt::entity SpawnModelDrop(const EditorContext& ctx, const char* path)
+    {
+        if (!ctx.scene || !ctx.assets || !path) {
+            return entt::null;
+        }
+        const auto model = ctx.assets->LoadModel(path);
+        if (!model.Valid()) {
+            return entt::null;
+        }
+        std::string name =
+            std::filesystem::path(path).stem().string();
+        if (name.empty()) {
+            name = "model entity";
+        }
+        auto e = ctx.scene->CreateEntity(name);
+        e.AddComponent<Engine::ECS::MeshRendererComponent>().model = model;
+        ENGINE_INFO("Hierarchy: model entity '{}' created from '{}'",
+                    name, path);
+        return static_cast<entt::entity>(e);
+    }
+
     // 实体名 → 合法文件名（路径分隔符/保留符净化；空名兜底）
     std::string PrefabFileName(std::string name)
     {
@@ -136,6 +160,15 @@ namespace {
                     selected = root;
                 }
             }
+            if (const ImGuiPayload* pl =
+                    ImGui::AcceptDragDropPayload(kModelDragPayload)) {
+                if (const entt::entity me = SpawnModelDrop(
+                        ctx, static_cast<const char*>(pl->Data));
+                    me != entt::null) {
+                    ctx.scene->SetParent(me, e);   // keepWorld 默认 true
+                    selected = me;
+                }
+            }
             ImGui::EndDragDropTarget();
         }
 
@@ -273,6 +306,14 @@ void HierarchyPanel::Draw(const EditorContext& ctx, entt::entity& selected)
                     selected = root;
                 }
             }
+            if (const ImGuiPayload* pl =
+                    ImGui::AcceptDragDropPayload(kModelDragPayload)) {
+                if (const entt::entity me = SpawnModelDrop(
+                        ctx, static_cast<const char*>(pl->Data));
+                    me != entt::null) {
+                    selected = me;
+                }
+            }
             ImGui::EndDragDropTarget();
         }
     }

App/editor/panels/InspectorPanel.cpp

@@ -18,6 +18,7 @@
 #include "Engine/Physics/PhysicsWorld.h"   // Apply Impulse 调试（GetPhysics 门面）
 #include "Engine/Scripting/Script.h"       // 脚本下拉（ScriptRegistry::Names）
 #include "Engine/Scripting/ScriptRuntime.h"   // 参数编辑 → RefreshParams
+#include "Engine/Serialization/SceneSerializer.h"   // ResolveProcedural（程序化入口）
 #include "Engine/Core/Log.h"               // Create Override 失败告警
 
 #include <imgui.h>
@@ -670,6 +671,67 @@ void InspectorPanel::Draw(const EditorContext& ctx, entt::entity selected)
                     mr->materialOverrides.clear();
                 }
                 ImGui::Spacing();
+                // 程序化模型入口：伪资产不在磁盘（下拉框列不到），由
+                // 弹窗组键生成 → ResolveProcedural（与场景反解同一
+                // 键格式唯一定义点；确定性键必然命中缓存）
+                if (ImGui::SmallButton("Procedural..."))
+                {
+                    ImGui::OpenPopup("##proc_model");
+                }
+                if (ImGui::BeginPopup("##proc_model"))
+                {
+                    static int shape = 0;      // 0=cube 1=plane 2=transparent plane
+                    static float half = 0.5f;
+                    static float col[3] = {0.55f, 0.36f, 0.28f};
+                    static float alpha = 0.5f;
+                    ImGui::RadioButton("Cube", &shape, 0);
+                    ImGui::SameLine();
+                    ImGui::RadioButton("Plane", &shape, 1);
+                    ImGui::SameLine();
+                    ImGui::RadioButton("Trans.Plane", &shape, 2);
+                    ImGui::SetNextItemWidth(-1.0f);
+                    ImGui::SliderFloat("half size", &half, 0.01f, 10.0f,
+                                       "%.2f");
+                    ImGui::ColorEdit3("color", col);
+                    if (shape == 2)
+                    {
+                        ImGui::SetNextItemWidth(-1.0f);
+                        ImGui::SliderFloat("alpha", &alpha, 0.0f, 1.0f,
+                                           "%.2f");
+                    }
+                    if (ImGui::Button("Create & Assign"))
+                    {
+                        const int r = int(col[0] * 255.0f + 0.5f);
+                        const int g = int(col[1] * 255.0f + 0.5f);
+                        const int b = int(col[2] * 255.0f + 0.5f);
+                        char key[96];
+                        if (shape == 2)
+                        {
+                            const int a = int(alpha * 255.0f + 0.5f);
+                            std::snprintf(
+                                key, sizeof(key),
+                                "procedural://transparent-plane/%.3g/%d,%d,%d,%d",
+                                half, r, g, b, a);
+                        }
+                        else
+                        {
+                            std::snprintf(
+                                key, sizeof(key),
+                                "procedural://%s/%.3g/%d,%d,%d",
+                                shape == 0 ? "cube" : "plane", half, r, g, b);
+                        }
+                        if (auto ref = Engine::Serialization::
+                                SceneSerializer::ResolveProcedural(
+                                    *ctx.assets, key);
+                            ref.Valid())
+                        {
+                            mr->model = ref;
+                            mr->materialOverrides.clear();
+                            ImGui::CloseCurrentPopup();
+                        }
+                    }
+                    ImGui::EndPopup();
+                }
             }
             // 无效句柄不进 GetModel（缓存对无效/悬空句柄 FATAL，是 bug 信号）
             if (mr->model.Valid())
@@ -1951,6 +2013,10 @@ void InspectorPanel::Draw(const EditorContext& ctx, entt::entity selected)
                 // CrossFade 与 Direct 的 crossfade 共用 fade）
                 ImGui::SliderFloat("Speed", &anim->speed, -2.0f, 2.0f);
                 ImGui::SliderFloat("Fade", &anim->fadeDuration, 0.0f, 1.0f);
+                // 根运动（Unity Animator 同名开关）：关 = 原地播放，
+                // 位移归脚本/物理驱动（CharacterController 角色用）
+                ImGui::Checkbox("Apply Root Motion",
+                                &anim->applyRootMotion);
                 // 动画数据表：每个 clip 的时长与有效轨道数（attach 进来的
                 // 外部动画在此核对骨骼匹配结果——轨道数明显偏少 = 骨骼
                 // 命名不同源被跳过）

Engine/include/Engine/Serialization/SceneSerializer.h

@@ -24,6 +24,7 @@
 #define HELLOVULKAN_SCENESERIALIZER_H
 
 #include <Engine/ECS/Scene.h>   // Entity + glm vec3/quat（Prefab API 签名用）
+#include <Engine/Core/AssetRef.h>   // ModelRef（ResolveProcedural 返回值）
 
 #include <string>
 
@@ -93,6 +94,13 @@ namespace Engine::Serialization {
             const std::string& inPath,
             const glm::vec3* overridePos = nullptr,
             const glm::quat* overrideRot = nullptr);
+
+        // procedural:// 伪路径 → 参数反解重建（cube/plane/
+        // transparent-plane）。确定性键必然命中缓存；绝不走 assimp。
+        // 未知/格式坏伪路径返回无效句柄。场景加载与编辑器程序化
+        // 入口共用——键格式唯一定义点
+        static ModelRef ResolveProcedural(
+            Assets::AssetManager& assets, const std::string& path);
     };
 
 } // namespace Engine::Serialization

Engine/src/Serialization/SceneSerializer.cpp

@@ -179,71 +179,17 @@ namespace Engine::Serialization {
 
         // procedural:// 伪路径 → 参数反解重建（确定性键必然命中缓存；
         // 绝不对伪路径调 LoadModel——那会走 assimp 必炸）
-        ModelRef ResolveProcedural(Assets::AssetManager& assets,
+        // 实现见 SceneSerializer::ResolveProcedural（公共静态，编辑器
-                                   const std::string& path)
+        // 程序化入口共用）
-        {
-            constexpr std::string_view kPlane = "procedural://plane/";
-            constexpr std::string_view kTPlane =
-                "procedural://transparent-plane/";
-            constexpr std::string_view kCube = "procedural://cube/";
-
-            if (path.rfind(kCube, 0) == 0) {
-                // "{halfSize}/{r},{g},{b}"
-                const std::string rest = path.substr(kCube.size());
-                const auto slash = rest.find('/');
-                if (slash == std::string::npos) return {};
-                int c[3];
-                if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
-                try {
-                    return assets.CreateCube(
-                        std::stof(rest.substr(0, slash)),
-                        static_cast<u8>(c[0]), static_cast<u8>(c[1]),
-                        static_cast<u8>(c[2]));
-                }
-                catch (const std::exception&) { return {}; }
-            }
-
-            if (path.rfind(kTPlane, 0) == 0) {
-                // "{halfSize}/{r},{g},{b},{a}"
-                const std::string rest = path.substr(kTPlane.size());
-                const auto slash = rest.find('/');
-                if (slash == std::string::npos) return {};
-                int c[4];
-                if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
-                try {
-                    return assets.CreateTransparentPlane(
-                        std::stof(rest.substr(0, slash)),
-                        static_cast<u8>(c[0]), static_cast<u8>(c[1]),
-                        static_cast<u8>(c[2]), static_cast<u8>(c[3]));
-                }
-                catch (const std::exception&) { return {}; }
-            }
-
-            if (path.rfind(kPlane, 0) == 0) {
-                // "{halfSize}/{r},{g},{b}"
-                const std::string rest = path.substr(kPlane.size());
-                const auto slash = rest.find('/');
-                if (slash == std::string::npos) return {};
-                int c[3];
-                if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
-                try {
-                    return assets.CreatePlane(
-                        std::stof(rest.substr(0, slash)),
-                        static_cast<u8>(c[0]), static_cast<u8>(c[1]),
-                        static_cast<u8>(c[2]));
-                }
-                catch (const std::exception&) { return {}; }
-            }
-
-            return {};   // 未知伪路径
-        }
 
         // 模型引用解析降级链：procedural 反解 → GUID 主键 → Path 兜底。
         // 加载成功后 GetOrCreateGUID 回写注册表（注册表丢档自愈）
         ModelRef ResolveModel(Assets::AssetManager& assets, u64 guid,
                               const std::string& path)
         {
-            if (ModelRef ref = ResolveProcedural(assets, path); ref.Valid()) {
+            if (ModelRef ref =
+                    SceneSerializer::ResolveProcedural(assets, path);
+                ref.Valid()) {
                 return ref;
             }
 
@@ -1245,6 +1191,67 @@ namespace Engine::Serialization {
         }
     }
 
+    // procedural:// 伪路径 → 参数反解重建（键格式唯一定义点；
+    // 绝不对伪路径调 LoadModel——那会走 assimp 必炸）
+    ModelRef SceneSerializer::ResolveProcedural(
+        Assets::AssetManager& assets, const std::string& path)
+    {
+        constexpr std::string_view kPlane = "procedural://plane/";
+        constexpr std::string_view kTPlane =
+            "procedural://transparent-plane/";
+        constexpr std::string_view kCube = "procedural://cube/";
+
+        if (path.rfind(kCube, 0) == 0) {
+            // "{halfSize}/{r},{g},{b}"
+            const std::string rest = path.substr(kCube.size());
+            const auto slash = rest.find('/');
+            if (slash == std::string::npos) return {};
+            int c[3];
+            if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
+            try {
+                return assets.CreateCube(
+                    std::stof(rest.substr(0, slash)),
+                    static_cast<u8>(c[0]), static_cast<u8>(c[1]),
+                    static_cast<u8>(c[2]));
+            }
+            catch (const std::exception&) { return {}; }
+        }
+
+        if (path.rfind(kTPlane, 0) == 0) {
+            // "{halfSize}/{r},{g},{b},{a}"
+            const std::string rest = path.substr(kTPlane.size());
+            const auto slash = rest.find('/');
+            if (slash == std::string::npos) return {};
+            int c[4];
+            if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
+            try {
+                return assets.CreateTransparentPlane(
+                    std::stof(rest.substr(0, slash)),
+                    static_cast<u8>(c[0]), static_cast<u8>(c[1]),
+                    static_cast<u8>(c[2]), static_cast<u8>(c[3]));
+            }
+            catch (const std::exception&) { return {}; }
+        }
+
+        if (path.rfind(kPlane, 0) == 0) {
+            // "{halfSize}/{r},{g},{b}"
+            const std::string rest = path.substr(kPlane.size());
+            const auto slash = rest.find('/');
+            if (slash == std::string::npos) return {};
+            int c[3];
+            if (!ParseCsvInts(rest.substr(slash + 1), c)) return {};
+            try {
+                return assets.CreatePlane(
+                    std::stof(rest.substr(0, slash)),
+                    static_cast<u8>(c[0]), static_cast<u8>(c[1]),
+                    static_cast<u8>(c[2]));
+            }
+            catch (const std::exception&) { return {}; }
+        }
+
+        return {};   // 未知伪路径
+    }
+
     ECS::Entity SceneSerializer::InstantiatePrefab(
         ECS::Scene& scene, Assets::AssetManager& assets,
         const std::string& inPath,