diff --git a/engine/assets/asset/mesh1.asset.meta b/engine/assets/asset/mesh1.asset.meta
index 44d40d6..b910e10 100644
--- a/engine/assets/asset/mesh1.asset.meta
+++ b/engine/assets/asset/mesh1.asset.meta
@@ -6,9 +6,9 @@ metadatas:
       __class__: engineapi::Shader
       __data__:
         mVert:
-          guid: 9419e2a5-ddc4-414f-aa76-d08e9b162492
+          guid: 020486aa-8987-4bd1-9de9-eeb7ab82c437
         mFrag:
-          guid: eb1c9b43-a86b-40cb-9b3d-a3296d168c70
+          guid: a4064a70-89d5-4d8f-b3c3-6486dcf786c0
   - guid: 7a01231c-c35d-4b74-b20f-4ca6823995d9
     name: ""
     t_hash: engineapi::Asset
@@ -16,4 +16,8 @@ metadatas:
       __class__: engineapi::Material
       __data__:
         mShader:
-          guid: 0a2ef3e8-db70-4d3f-94b1-09f9f92519cd
\ No newline at end of file
+          guid: 0a2ef3e8-db70-4d3f-94b1-09f9f92519cd
+includes:
+  - /engine/assets/asset/mesh1.asset
+  - /engine/assets/shader/simple.frag
+  - /engine/assets/shader/simple.vert
\ No newline at end of file
diff --git a/engine/assets/file_resource.meta b/engine/assets/file_resource.meta
index 0454be7..3712f59 100644
--- a/engine/assets/file_resource.meta
+++ b/engine/assets/file_resource.meta
@@ -1,10 +1,10 @@
 /engine/assets/shader/simple.vert:
-  - 9419e2a5-ddc4-414f-aa76-d08e9b162492
+  - 020486aa-8987-4bd1-9de9-eeb7ab82c437
 /engine/assets/asset/mesh1.asset:
-  - 0a2ef3e8-db70-4d3f-94b1-09f9f92519cd
   - 7a01231c-c35d-4b74-b20f-4ca6823995d9
-/engine/assets/shader/simple.frag:
-  - eb1c9b43-a86b-40cb-9b3d-a3296d168c70
+  - 0a2ef3e8-db70-4d3f-94b1-09f9f92519cd
 /engine/assets/models/cube.obj:
-  - 619d2750-cedc-40cc-8781-fbdd116ded89
-  - 6c60e6b2-2ae6-4508-8117-8e797b9ac4bd
\ No newline at end of file
+  - 3f6a5afc-2f21-47c4-86ba-9ddb9852d8f4
+  - b91ca918-6b3c-4647-8773-d93d2807cb98
+/engine/assets/shader/simple.frag:
+  - a4064a70-89d5-4d8f-b3c3-6486dcf786c0
\ No newline at end of file
diff --git a/engine/assets/models/cube.obj.meta b/engine/assets/models/cube.obj.meta
index 5baa48f..0a0853f 100644
--- a/engine/assets/models/cube.obj.meta
+++ b/engine/assets/models/cube.obj.meta
@@ -1,13 +1,15 @@
 metadatas:
-  - guid: 6c60e6b2-2ae6-4508-8117-8e797b9ac4bd
+  - guid: 3f6a5afc-2f21-47c4-86ba-9ddb9852d8f4
     name: ""
     t_hash: engineapi::Model
     meta: ~
-  - guid: 619d2750-cedc-40cc-8781-fbdd116ded89
+  - guid: b91ca918-6b3c-4647-8773-d93d2807cb98
     name: defaultobject
     t_hash: engineapi::Asset
     meta:
       __class__: engineapi::Mesh
       __data__:
         mMaterial:
-          guid: 7a01231c-c35d-4b74-b20f-4ca6823995d9
\ No newline at end of file
+          guid: 7a01231c-c35d-4b74-b20f-4ca6823995d9
+includes:
+  - /engine/assets/asset/mesh1.asset
\ No newline at end of file
diff --git a/engine/assets/shader/simple.frag.meta b/engine/assets/shader/simple.frag.meta
index f024419..78a9e5f 100644
--- a/engine/assets/shader/simple.frag.meta
+++ b/engine/assets/shader/simple.frag.meta
@@ -1,5 +1,6 @@
 metadatas:
-  - guid: eb1c9b43-a86b-40cb-9b3d-a3296d168c70
+  - guid: a4064a70-89d5-4d8f-b3c3-6486dcf786c0
     name: ""
     t_hash: engineapi::ShaderProgram
-    metadata: ""
\ No newline at end of file
+    meta: ~
+includes: ~
\ No newline at end of file
diff --git a/engine/assets/shader/simple.vert.meta b/engine/assets/shader/simple.vert.meta
index 7a9d7c0..a9a2173 100644
--- a/engine/assets/shader/simple.vert.meta
+++ b/engine/assets/shader/simple.vert.meta
@@ -1,5 +1,6 @@
 metadatas:
-  - guid: 9419e2a5-ddc4-414f-aa76-d08e9b162492
+  - guid: 020486aa-8987-4bd1-9de9-eeb7ab82c437
     name: ""
     t_hash: engineapi::ShaderProgram
-    metadata: ""
\ No newline at end of file
+    meta: ~
+includes: ~
\ No newline at end of file
diff --git a/engine/src/engine/asset/asset.cpp b/engine/src/engine/asset/asset.cpp
index d036b98..c61eb26 100644
--- a/engine/src/engine/asset/asset.cpp
+++ b/engine/src/engine/asset/asset.cpp
@@ -6,11 +6,37 @@
 #include "object/loader/assimp_loader.h"
 #include "yaml/yaml.h"
 namespace engineapi {
+	void FindIncludes(MetaBundle& bundle, Asset* asset) {
+		auto fieldList = asset->meta->GetFields(refl::FIND_ALL_MEMBER, FName(""));
+		refl::Any any(asset, asset->meta);
+		auto cls = &refl::TypeInfo<RscHandleBase>::StaticClass;
+		for (auto field : fieldList) {
+			if (field.type == cls) {
+				RscHandleBase* base = any.Member(field).CastTo<RscHandleBase*>();
+				FileBlock* file = ResourceManager::GetSingleton().GetResourceFile(base->guid);
+				if (file) {
+					bundle.includes.push_back(file->path);
+				}
+			}
+		}
+	}
 	MetaBundle ResourceManager::GetVisitMeta(const ResourceBundle& bundle)
 	{
 		MetaBundle new_meta = MetaBundle{};
 		for (auto& elem : bundle.GetAll())
-			std::visit([&](auto& handle) { new_meta.Add(handle);  }, elem);
+			std::visit([&](auto& handle) { 
+				using T = std::decay_t<decltype(*handle)>;
+				new_meta.Add(handle);
+				if constexpr (std::is_same_v<T, Asset>) {
+					FindIncludes(new_meta, &*handle);
+				}
+			}, elem);
+		auto& v = new_meta.includes;
+		if (v.size() > 1) {
+			std::sort(v.begin(), v.end());  // 首先排序
+			auto end_unique = std::unique(v.begin(), v.end());  // 去除重复元素
+			v.erase(end_unique, v.end());
+		}
 		return new_meta;
 	}
 	void Asset::__Init__()
diff --git a/engine/src/engine/asset/asset_loader.cpp b/engine/src/engine/asset/asset_loader.cpp
index 81a3b0b..4d6acd0 100644
--- a/engine/src/engine/asset/asset_loader.cpp
+++ b/engine/src/engine/asset/asset_loader.cpp
@@ -3,8 +3,6 @@
 #include "yaml/yaml.h"
 #include <fstream>
 #include "file_handle.h"
-
-#include "render/asset/material.h"
 namespace engineapi {
 	void AssetLoader::Init() {
 		ResourceManager::GetSingleton().RegisterLoader<AssetLoader>(".asset");
@@ -16,22 +14,6 @@ namespace engineapi {
 			if (!meta.meta) 
 				continue;
 			auto rsc = ResourceManager::GetSingleton().LoadFromMeta<Asset>(meta.guid, meta);
-			if (meta.meta.cls == &refl::TypeInfo<Shader>::StaticClass) {
-				Shader* asset = (Shader*)& *rsc;
-				Guid g1 = asset->GetGuid();
-				Guid g2 = meta.guid;
-				bool isame = g1 == g2;
-				g1 = meta.guid;
-				g2 = asset->GetGuid();
-			}
-			else if (meta.meta.cls == &refl::TypeInfo<Material>::StaticClass) {
-				Material* asset = (Material*)&*rsc;
-				Guid g1 = asset->GetGuid();
-				Guid g2 = meta.guid;
-				bool isame = g1 == g2;
-				g1 = meta.guid;
-				g2 = asset->GetGuid();
-			}
 			bundle.Add(rsc);
 		}
 		return bundle;
diff --git a/engine/src/engine/asset/res/meta_bundle.cpp b/engine/src/engine/asset/res/meta_bundle.cpp
index 733ad13..c318b21 100644
--- a/engine/src/engine/asset/res/meta_bundle.cpp
+++ b/engine/src/engine/asset/res/meta_bundle.cpp
@@ -3,9 +3,18 @@
 
 namespace engineapi
 {
+    const SerializedMeta* MetaBundle::FetchMeta(const Guid& guid) const
+    {
+        for (auto& elem : metadatas)
+        {
+            if (elem.guid == guid)
+                return &elem;
+        }
+        return nullptr;
+    }
     bool MetaBundle::operator==(const MetaBundle& other)const
     {
-        return metadatas == other.metadatas;
+        return metadatas == other.metadatas && includes == other.includes;
     }
     bool MetaBundle::operator!=(const MetaBundle& other)const
     {
diff --git a/engine/src/engine/asset/res/meta_bundle.h b/engine/src/engine/asset/res/meta_bundle.h
index 5c26698..d4c356b 100644
--- a/engine/src/engine/asset/res/meta_bundle.h
+++ b/engine/src/engine/asset/res/meta_bundle.h
@@ -11,7 +11,7 @@ namespace engineapi
 		UPROPERTY({})
 		string name;
 		UPROPERTY({})
-		string t_hash{};
+		string t_hash;
 		UPROPERTY({})
 		refl::Any meta;
 		bool operator==(const SerializedMeta& other)const{
@@ -23,9 +23,11 @@ namespace engineapi
 	{
 		UPROPERTY({})
 		vector<SerializedMeta> metadatas;
-
+		UPROPERTY({})
+		vector<string> includes;
 		MetaBundle() = default;
 
+		const SerializedMeta* FetchMeta(const Guid& guid) const;
 		template<typename T>
 		const SerializedMeta* FetchMeta() const;
 		template<typename T>
diff --git a/engine/src/engine/asset/res/package_path.h b/engine/src/engine/asset/res/package_path.h
index 2325add..a49d386 100644
--- a/engine/src/engine/asset/res/package_path.h
+++ b/engine/src/engine/asset/res/package_path.h
@@ -21,7 +21,7 @@ namespace engineapi
 	};
 	//占位符浪费了四个字节
 	struct FileBlock {
-		uint32_t flag;
+		uint32_t flag{0};
 		string path;
 		string addr;
 		operator bool() {
diff --git a/engine/src/engine/asset/res/resource_config.h b/engine/src/engine/asset/res/resource_config.h
index c1932c3..449855d 100644
--- a/engine/src/engine/asset/res/resource_config.h
+++ b/engine/src/engine/asset/res/resource_config.h
@@ -19,6 +19,7 @@ namespace engineapi {
 		RscHandle<Res> mHandle;
 		std::string         mName;
 		friend class RscHandle<Res>;
+		friend class ResourceManager;
 	};
 	using Resources = std::tuple<
 		class ShaderProgram
diff --git a/engine/src/engine/asset/res/resource_handle.h b/engine/src/engine/asset/res/resource_handle.h
index 469529e..d4dbd4e 100644
--- a/engine/src/engine/asset/res/resource_handle.h
+++ b/engine/src/engine/asset/res/resource_handle.h
@@ -8,7 +8,7 @@ namespace engineapi
 	struct RscHandleBase {
 		UPROPERTY({})
 		Guid guid;
-		void* res;
+		void* res{nullptr};
 	};
 	template<typename Res>
 	struct RscHandle : public RscHandleBase
@@ -17,7 +17,7 @@ namespace engineapi
 		constexpr RscHandle() noexcept = default;
 		template<typename T>
 		constexpr RscHandle(const RscHandle<T>& other) noexcept : RscHandleBase(other.guid, other.res) {};
-		constexpr RscHandle(const Guid& guid, Res* res) noexcept : RscHandleBase(guid, res) { ((Resource<Res>*)res)->mHandle = *this; }
+		constexpr RscHandle(const Guid& guid, Res* res) noexcept : RscHandleBase(guid, res) {}
 		void Init();
 		void Clear() { res = nullptr; };
 		Res* operator->() { if (!res && guid) Init();  return (Res*)res; }
diff --git a/engine/src/engine/asset/resource_manager.cpp b/engine/src/engine/asset/resource_manager.cpp
index 8ca6ee5..44e36e5 100644
--- a/engine/src/engine/asset/resource_manager.cpp
+++ b/engine/src/engine/asset/resource_manager.cpp
@@ -31,16 +31,14 @@ namespace engineapi {
 			return nullptr;
 		return itr->second;
 	}
-	ResourceBundle& ResourceManager::Load(const PackagePath& path, bool reload_resource)
+	ResourceBundle& ResourceManager::Load(const PackagePath& path, bool reload_resource, int deep)
 	{
 		NameID name = path();
 		auto it = mFileBlock.find(name);
-		if (it != mFileBlock.end()) {
-			if (!reload_resource) {
-				return it->second.bundle;
-			}
-		}
 		auto& res = mFileBlock[name];
+		if (deep > 5 || (!reload_resource && res && it != mFileBlock.end())) {
+			return res.bundle;
+		}
 		Name ext = path.GetExtension();
 		IFileLoader* loader = GetLoader(ext);
 		MetaBundle meta = GetMeta(path);
@@ -54,13 +52,18 @@ namespace engineapi {
 				mResourceFile[handle.guid] = FileManager::FindPathBlock(path);
 			}, elem);
 		}
-		if (is_dirty_meta || res.is_dirty) {
+		if (is_dirty_meta || res.IsDirty()) {
 			mDirtyBlock.push_back(&res);
 		}
 		res.path = path.SafePath();
 		res.bundle = bundle;
-		res.is_meta_dirty = is_dirty_meta;
+		res.Loaded(true).MetaDirty(is_dirty_meta);
 		res.bundle = bundle;
+		if (!new_meta.includes.empty()) {
+			for (auto include : new_meta.includes) {
+				Load(include, false, deep + 1);
+			}
+		}
 		return res.bundle;
 	}
 
@@ -97,13 +100,13 @@ namespace engineapi {
 	void ResourceManager::SaveDirtyFile()
 	{
 		for (auto block : mDirtyBlock) {
-			if (block->is_meta_dirty) {
-				block->is_meta_dirty = false;
+			if (block->IsMetaDirty()) {
+				block->MetaDirty(false);
 				MetaBundle new_meta = GetVisitMeta(block->bundle);
 				SaveMeta(block->path, new_meta);
 			}
-			if (block->is_dirty) {
-				block->is_dirty = false;
+			if (block->IsDirty()) {
+				block->Dirty(false);
 				auto loader = GetLoader(block->path.GetExtension());
 				loader->SaveFile(block->path, block->bundle);
 			}
diff --git a/engine/src/engine/asset/resource_manager.h b/engine/src/engine/asset/resource_manager.h
index 5e27554..2bf73f2 100644
--- a/engine/src/engine/asset/resource_manager.h
+++ b/engine/src/engine/asset/resource_manager.h
@@ -17,6 +17,22 @@ namespace engineapi {
         FileDoesNotExist,
         FailedToLoadResource,
     };
+    struct ResourceFileFlag{
+        enum Value : uint32_t {
+            File_Default = 0,
+            File_Dirty = 1 << 0,
+            File_Meta_Dirty = 1 << 1,
+            File_Loaded = 1 << 2,
+        };
+        Value val{ File_Default };
+        // 构造函数和操作符重载，使类实例像整数一样使用
+        ResourceFileFlag(Value v = File_Default) : val(v) {}
+        operator uint32_t() const { return val; }
+        ResourceFileFlag& operator=(Value v) {
+            val = v;
+            return *this;
+        }
+    };
     template<typename Res>
     using LoadResult = result<Res, ResourceLoadError>;
     class ResourceManager : public ISingleton<ResourceManager>
@@ -69,7 +85,7 @@ namespace engineapi {
 
         template<typename Res>  
         RscHandle<Res> Load(const PackagePath& path, bool reload_resource = true);
-        ResourceBundle&  Load(const PackagePath& path, bool reload_resource = true);
+        ResourceBundle&  Load(const PackagePath& path, bool reload_resource = true, int deep = 0);
         MetaBundle GetMeta(const PackagePath& path);
         MetaBundle GetVisitMeta(const ResourceBundle& bundle);
         void SaveMeta(const PackagePath& path, const MetaBundle& bundle);
@@ -86,14 +102,29 @@ namespace engineapi {
     {
         ResourceBundle bundle;
         PackagePath path;
-        bool is_dirty{ false };
-        bool is_meta_dirty{ false };
+        uint32_t flag{0};
+        ResourceFileBlock& SetFlag(bool is, ResourceFileFlag _flag) {
+            if (is) 
+                flag |= _flag;
+            else 
+                flag &= ~_flag;
+            return *this;
+        }
+        operator bool() {
+            return IsLoaded();
+        }
+        ResourceFileBlock& Loaded(bool is) { return SetFlag(is, ResourceFileFlag::File_Loaded); }
+        ResourceFileBlock& Dirty(bool is) { return SetFlag(is, ResourceFileFlag::File_Dirty); }
+        ResourceFileBlock& MetaDirty(bool is) { return SetFlag(is, ResourceFileFlag::File_Meta_Dirty); }
+        bool IsLoaded() { return flag & ResourceFileFlag::File_Loaded; }
+        bool IsDirty() { return flag & ResourceFileFlag::File_Dirty; }
+        bool IsMetaDirty() { return flag & ResourceFileFlag::File_Meta_Dirty; }
     };
     template<typename R>
     struct ResourceManager::ResourceBlock
     {
-        R*    resource;
-        ResourceFileBlock* file;
+        R* resource{nullptr};
+        ResourceFileBlock* file{ nullptr };
         bool valid() const { return resource; }
     };
 }
diff --git a/engine/src/engine/asset/resource_manager.inl b/engine/src/engine/asset/resource_manager.inl
index 32a6890..ee01393 100644
--- a/engine/src/engine/asset/resource_manager.inl
+++ b/engine/src/engine/asset/resource_manager.inl
@@ -55,6 +55,7 @@ namespace engineapi {
 		}
 		else {
 			control_block.resource = res;
+			res->mHandle.guid = guid;
 		}
 		res->Name(meta.name);
 		return RscHandle<Res>{guid, res};
@@ -66,6 +67,7 @@ namespace engineapi {
 		auto& control_block = table[guid]; // don't care just replace
 		// attempt to put on other thread
 		Res* res = new Res(std::forward<Args>(args)...);
+		res->mHandle.guid = guid;
 		control_block.resource = res;
 		return RscHandle<Res>{guid, res};
 	}
diff --git a/engine/src/engine/object/loader/assimp_loader.cpp b/engine/src/engine/object/loader/assimp_loader.cpp
index 6f5ec72..c47143c 100644
--- a/engine/src/engine/object/loader/assimp_loader.cpp
+++ b/engine/src/engine/object/loader/assimp_loader.cpp
@@ -131,7 +131,7 @@ namespace engineapi {
         RscHandle<Mesh> asset = m ? ResourceManager::GetSingleton().LoadEmplaceResource<Mesh>(m->guid, vertices, indices)
             : ResourceManager::GetSingleton().LoadEmplaceResource<Mesh>(vertices, indices);
         if (m && m->meta) {
-            void* ptr = &*asset;
+            Mesh* ptr = &*asset;
             m->meta.MoveTo(ptr);
         }
         asset->Name(mesh->mName.C_Str());
diff --git a/engine/src/engine/render/asset/material.h b/engine/src/engine/render/asset/material.h
index 25787e4..9cd8a92 100644
--- a/engine/src/engine/render/asset/material.h
+++ b/engine/src/engine/render/asset/material.h
@@ -11,6 +11,9 @@ namespace engineapi {
 	public:
 		Material();
 		~Material();
+		void BeginLoad() {
+			mShader->BeginLoad();
+		}
 		RscHandle<Shader> GetShader() {
 			return mShader;
 		}
diff --git a/engine/src/engine/render/asset/mesh.cpp b/engine/src/engine/render/asset/mesh.cpp
index b301fb4..f768676 100644
--- a/engine/src/engine/render/asset/mesh.cpp
+++ b/engine/src/engine/render/asset/mesh.cpp
@@ -6,6 +6,7 @@ namespace engineapi {
 	}
 	void Mesh::BeginLoad()
 	{
+		mMaterial->BeginLoad();
 		RenderAPI::GetSingletonPtr()->SetStaticMesh(*this);
 	}
 }
diff --git a/engine/src/engine/render/asset/shader.cpp b/engine/src/engine/render/asset/shader.cpp
index 1af8964..86bb24c 100644
--- a/engine/src/engine/render/asset/shader.cpp
+++ b/engine/src/engine/render/asset/shader.cpp
@@ -1,4 +1,5 @@
 #include "shader.h"
+#include "render/renderapi.h"
 namespace engineapi {
 	Shader::Shader() : Asset(&refl::TypeInfo<Shader>::StaticClass)
 	{
@@ -7,4 +8,8 @@ namespace engineapi {
 	Shader::~Shader()
 	{
 	}
+	void Shader::BeginLoad()
+	{
+		RenderAPI::GetSingletonPtr()->LoadShader(*this);
+	}
 }
diff --git a/engine/src/engine/render/asset/shader.h b/engine/src/engine/render/asset/shader.h
index dd5da16..bcaa667 100644
--- a/engine/src/engine/render/asset/shader.h
+++ b/engine/src/engine/render/asset/shader.h
@@ -5,7 +5,7 @@ namespace engineapi {
 	class Shader : public Asset {
 	private:
 		REFL_FRIEND(Shader)
-		uint32_t mId;
+		uint32_t mId{0};
 		ShaderInfo mInfo;
 		UPROPERTY()
 		RscHandle<ShaderProgram> mVert;
@@ -15,6 +15,7 @@ namespace engineapi {
 	public:
 		Shader();
 		~Shader();
+		void BeginLoad();
 		uint32_t& GetID() {
 			return mId;
 		}