diff --git a/CMakeLists.txt b/CMakeLists.txt
index fd3a5315..68961fa8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -49,9 +49,11 @@ SET(ULRE    ULRE.Base
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/MathGeoLib/src)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/NvTriStrip)
-include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/assimp/include)
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}/inc)
 
+include_directories(${CMAKE_CURRENT_SOURCE_DIR}/3rdpty/assimp/include)
+include_directories(${CMAKE_CURRENT_BINARY_DIR}/3rdpty/assimp/include)
+
 SET(ROOT_INCLUDE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/inc)
 
 SET(SPIRV_CROSS_PATH 3rdpty/SPIRV-Cross)
diff --git a/example/Vulkan/AssimpLoader.cpp b/example/Vulkan/AssimpLoader.cpp
new file mode 100644
index 00000000..3f00c136
--- /dev/null
+++ b/example/Vulkan/AssimpLoader.cpp
@@ -0,0 +1,748 @@
+#include"AssimpLoader.h"
+#include<assimp/postprocess.h>
+#include<assimp/cimport.h>
+#include<hgl/filesystem/FileSystem.h>
+#include<hgl/type/List.h>
+#include<hgl/io/MemoryOutputStream.h>
+#include<hgl/graph/TextureType.h>
+
+using namespace hgl;
+using namespace hgl::graph;
+
+namespace
+{
+    #define LOG_BR  LOG_INFO(OS_TEXT("------------------------------------------------------------"));
+
+    #define aisgl_min(x,y) (x<y?x:y)
+    #define aisgl_max(x,y) (y>x?y:x)
+
+    const Color4f COLOR_PURE_BLACK(0,0,0,1);
+    const Color4f COLOR_PURE_WHITE(1,1,1,1);
+}
+
+void AssimpLoader::get_bounding_box_for_node (const aiNode* nd,
+                                                aiVector3D* min,
+                                                aiVector3D* max,
+                                                aiMatrix4x4* trafo)
+{
+    aiMatrix4x4 prev;
+    unsigned int n = 0, t;
+
+    prev = *trafo;
+    aiMultiplyMatrix4(trafo,&nd->mTransformation);
+
+    for (; n < nd->mNumMeshes; ++n)
+    {
+        const aiMesh* mesh = scene->mMeshes[nd->mMeshes[n]];
+
+        for (t = 0; t < mesh->mNumVertices; ++t)
+        {
+            aiVector3D tmp = mesh->mVertices[t];
+            aiTransformVecByMatrix4(&tmp,trafo);
+
+            min->x = aisgl_min(min->x,tmp.x);
+            min->y = aisgl_min(min->y,tmp.y);
+            min->z = aisgl_min(min->z,tmp.z);
+
+            max->x = aisgl_max(max->x,tmp.x);
+            max->y = aisgl_max(max->y,tmp.y);
+            max->z = aisgl_max(max->z,tmp.z);
+        }
+    }
+
+    for (n = 0; n < nd->mNumChildren; ++n)
+        get_bounding_box_for_node(nd->mChildren[n],min,max,trafo);
+
+    *trafo = prev;
+}
+
+void AssimpLoader::get_bounding_box (const aiNode *node,aiVector3D* min, aiVector3D* max)
+{
+    aiMatrix4x4 trafo;
+
+    aiIdentityMatrix4(&trafo);
+
+    min->x = min->y = min->z =  1e10f;
+    max->x = max->y = max->z = -1e10f;
+
+    get_bounding_box_for_node(node,min,max,&trafo);
+}
+
+AssimpLoader::AssimpLoader()
+{
+    scene=0;
+    material_list=nullptr;
+}
+
+AssimpLoader::~AssimpLoader()
+{
+    delete[] material_list;
+
+    if(scene)
+        aiReleaseImport(scene);
+}
+
+//void AssimpLoader::SaveFile(const void *data,const uint &size,const OSString &ext_name)
+//{
+//    if(!data||size<=0)return;
+//
+//    OSString filename=main_filename+OS_TEXT(".")+ext_name;
+//
+//    if(filesystem::SaveMemoryToFile(filename,data,size)==size)
+//    {
+//        LOG_INFO(OS_TEXT("SaveFile: ")+filename+OS_TEXT(" , size: ")+OSString(size));
+//
+//        total_file_bytes+=size;
+//    }
+//}
+//
+//void AssimpLoader::SaveFile(void **data,const int64 *size,const int &count,const OSString &ext_name)
+//{
+//    if(!data||size<=0)return;
+//
+//    OSString filename=main_filename+OS_TEXT(".")+ext_name;
+//
+//    int64 result=filesystem::SaveMemoryToFile(filename,data,size,count);
+//
+//    if(result>0)
+//    {
+//        LOG_INFO(OS_TEXT("SaveFile: ")+filename+OS_TEXT(" , size: ")+OSString(result));
+//
+//        total_file_bytes+=result;
+//    }
+//}
+//
+//void OutFloat3(const OSString &front,const Color4f &c)
+//{
+//    LOG_INFO(front+OS_TEXT(": ")+OSString(c.r)
+//                  +OS_TEXT("," )+OSString(c.g)
+//                  +OS_TEXT("," )+OSString(c.b));
+//}
+
+constexpr VkSamplerAddressMode vk_wrap[4]=              //对应aiTextureMapMode,注意最后一个其实不对
+{
+    VK_SAMPLER_ADDRESS_MODE_REPEAT,
+    VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE,
+    VK_SAMPLER_ADDRESS_MODE_MIRRORED_REPEAT,
+    VK_SAMPLER_ADDRESS_MODE_MIRROR_CLAMP_TO_EDGE        //这个是declas
+};
+
+//void OutMaterialTexture(const MaterialTextureData &mt,io::DataOutputStream *dos)
+//{
+//    dos->WriteUint8((uint8)mt.type);
+//    dos->WriteInt32(mt.tex_id);
+//    dos->WriteUint8(mt.uvindex);
+//    dos->WriteFloat(mt.blend);
+//    dos->WriteUint8(mt.op);
+//    dos->WriteUint8(mt.wrap_mode,2);
+//
+//    LOG_INFO(OS_TEXT("\tTexture Type: ")+OSString((uint)mt.type));
+//    LOG_INFO(OS_TEXT("\tTexture ID: ")+OSString(mt.tex_id));
+//
+//    LOG_INFO(OS_TEXT("\tuvindex: ")+OSString(mt.uvindex));
+//    LOG_INFO(OS_TEXT("\tblend: ")+OSString(mt.blend));
+//    LOG_INFO(OS_TEXT("\top: ")+OSString(mt.op));
+//    LOG_INFO(OS_TEXT("\twrap_mode: ")+OSString(mt.wrap_mode[0])+OS_TEXT(",")+OSString(mt.wrap_mode[1]));
+//}
+//
+//void OutMaterial(const MaterialData *ms,const OSString &filename)
+//{
+//    io::FileOutputStream fos;
+//    io::LEDataOutputStream dos(&fos);
+//
+//    fos.CreateTrunc(filename);
+//
+//    dos.WriteFully("Material\x1A\x1",10);
+//    dos.WriteFloat(ms->diffuse,3);
+//    dos.WriteFloat(ms->specular,3);
+//    dos.WriteFloat(ms->ambient,3);
+//    dos.WriteFloat(ms->emission,3);
+//    dos.WriteFloat(ms->shininess);
+//    dos.WriteBool(ms->wireframe);
+//    dos.WriteBool(ms->two_sided);
+//    dos.WriteUint8(ms->tex_count);
+//
+//    OutFloat3(OSString(OS_TEXT("diffuse")),ms->diffuse);
+//    OutFloat3(OSString(OS_TEXT("specular")),ms->specular);
+//    OutFloat3(OSString(OS_TEXT("ambient")),ms->ambient);
+//    OutFloat3(OSString(OS_TEXT("emission")),ms->emission);
+//
+//    LOG_INFO(OS_TEXT("shininess: ")+OSString(ms->shininess));
+//
+//    LOG_INFO(OS_TEXT("wireframe: ")+OSString(ms->wireframe?OS_TEXT("true"):OS_TEXT("false")));
+//    LOG_INFO(OS_TEXT("two_sided: ")+OSString(ms->two_sided?OS_TEXT("true"):OS_TEXT("false")));
+//
+//    LOG_INFO(OS_TEXT("Material Texture Count ")+OSString(ms->tex_count));
+//
+//    for(int i=0;i<ms->tex_count;i++)
+//        OutMaterialTexture(ms->tex_list[i],&dos);
+//
+//    fos.Close();
+//}
+
+bool GetMaterialBool(const aiMaterial *mtl,const char *key,unsigned int type,unsigned int index,const bool default_value)
+{
+    int value;
+
+    if(aiGetMaterialInteger(mtl, key,type,index, &value)==AI_SUCCESS)
+        return value;
+    else
+        return default_value;
+}
+
+uint GetMaterialInteger(const aiMaterial *mtl,const char *key,unsigned int type,unsigned int index,const uint default_value)
+{
+    int value;
+
+    if(aiGetMaterialInteger(mtl, key,type,index, &value)==AI_SUCCESS)
+        return value;
+    else
+        return default_value;
+}
+
+float GetMaterialFloat(const aiMaterial *mtl,const char *key,unsigned int type,unsigned int index,const float default_value)
+{
+    float value;
+
+    if(aiGetMaterialFloat(mtl, key,type,index, &value)==AI_SUCCESS)
+        return value;
+    else
+        return default_value;
+}
+
+Color4f GetMaterialColor(const aiMaterial *mtl,const char *key,unsigned int type,unsigned int index,const Color4f &default_value)
+{
+    unsigned int max = 1;
+    aiColor4D color;
+
+    if(aiGetMaterialColor(mtl, key,type,index, &color)==AI_SUCCESS)
+        return Color4f(color.r,color.g,color.b,color.a);
+    else
+        return default_value;
+}
+
+//bool AssimpLoader::Convert(MaterialData &md,aiMaterial *mtl)
+//{
+//    uint tex_count=0;
+//    uint tt_count=0;
+//    int32 tex_id;
+//    aiReturn found=AI_SUCCESS;
+//
+//    md.name=mtl->GetName().C_Str();
+//
+//    for(uint tt=aiTextureType_DIFFUSE;tt<aiTextureType_UNKNOWN;tt++)
+//        tex_count+=mtl->GetTextureCount((aiTextureType)tt);
+//
+//    md.Init(tex_count);
+//
+//    MaterialTextureData *mtd=md.tex_list;
+//
+//    for(uint tt=aiTextureType_DIFFUSE;tt<aiTextureType_UNKNOWN;tt++)
+//    {
+//        tt_count=mtl->GetTextureCount((aiTextureType)tt);
+//
+//        for(int t=0;t<tt_count;t++)
+//        {
+//            aiString filename;
+//            aiTextureMapping tm;
+//            uint uvindex=0;
+//            float blend;
+//            aiTextureOp op;
+//            aiTextureMapMode wrap_mode[2];
+//
+//            mtl->GetTexture((aiTextureType)tt,t,&filename,&tm,&uvindex,&blend,&op,wrap_mode);
+//
+//            mtd->type=(TextureType)tt;
+//
+//            md.uv_use.Add(uvindex);
+//
+//            {
+//                char *fn=strrchr(filename.data,'\\');
+//                char *ext;
+//
+//                if(!fn)
+//                    fn=strrchr(filename.data,'/');
+//                else
+//                    ++fn;
+//
+//                if(fn)
+//                    ++fn;
+//                else
+//                    fn=filename.data;
+//
+//                ext=strrchr(fn,'.');
+//
+//                if(ext)*ext=0;
+//
+//            #if HGL_OS == HGL_OS_Window
+//                tex_id=tex_list.CaseFind(fn);
+//            #else
+//                tex_id=tex_list.Find(fn);
+//            #endif//
+//
+//                if(tex_id==-1)
+//                    tex_id=tex_list.Add(fn);
+//
+//                mtd->tex_id=tex_id;
+//            }
+//
+//            mtd->uvindex=uvindex;
+//            mtd->blend=blend;
+//            mtd->op=op;
+//
+//            mtd->wrap_mode[0]=vk_wrap[wrap_mode[0]];
+//            mtd->wrap_mode[1]=vk_wrap[wrap_mode[1]];
+//
+//            ++mtd;
+//        }
+//    }
+//
+//    md.two_sided           =GetMaterialBool    (mtl,AI_MATKEY_TWOSIDED,        true);
+//    md.shading_model       =GetMaterialInteger (mtl,AI_MATKEY_SHADING_MODEL,   aiShadingMode_Phong);
+//    md.wireframe           =GetMaterialBool    (mtl,AI_MATKEY_ENABLE_WIREFRAME,false);
+//    //        md.blend_func          =
+//    md.opacity             =GetMaterialFloat(mtl,AI_MATKEY_OPACITY,            0);
+//    //        md.transparency_factor =
+//
+//    md.bump_scaling        =GetMaterialFloat(mtl,AI_MATKEY_BUMPSCALING,        0);
+//    md.shininess           =GetMaterialFloat(mtl,AI_MATKEY_SHININESS,          0);
+//    md.shininess_strength  =GetMaterialFloat(mtl,AI_MATKEY_SHININESS_STRENGTH, 0);
+//    md.reflectivity        =GetMaterialFloat(mtl,AI_MATKEY_REFLECTIVITY,       0);
+//    md.refracti            =GetMaterialFloat(mtl,AI_MATKEY_REFRACTI,           0);
+//
+//    md.diffuse             =GetMaterialColor(mtl,AI_MATKEY_COLOR_DIFFUSE,      COLOR_PURE_WHITE);
+//    md.ambient             =GetMaterialColor(mtl,AI_MATKEY_COLOR_AMBIENT,      Color4f(0.2,0.2,0.2,1.0));
+//    md.specular            =GetMaterialColor(mtl,AI_MATKEY_COLOR_SPECULAR,     COLOR_PURE_BLACK);
+//    md.emission            =GetMaterialColor(mtl,AI_MATKEY_COLOR_EMISSIVE,     COLOR_PURE_BLACK);
+//
+//    md.transparent         =GetMaterialColor(mtl,AI_MATKEY_COLOR_TRANSPARENT,  COLOR_PURE_BLACK);
+//    md.reflective          =GetMaterialColor(mtl,AI_MATKEY_COLOR_REFLECTIVE,   COLOR_PURE_BLACK);
+//
+//    //OutMaterial(ms,main_filename+OS_TEXT(".")+OSString(m)+OS_TEXT(".material"));
+//    LOG_BR;
+//}
+
+//void AssimpLoader::LoadMaterial()
+//{
+//    if(!scene->HasMaterials())return;
+//
+//    LOG_BR;
+//    LOG_INFO(OS_TEXT("Material Count ")+OSString(scene->mNumMaterials));
+//    LOG_BR;
+//
+//    aiString filename;
+//    aiTextureMapping tm;
+//    uint uvindex=0;
+//    float blend;
+//    aiTextureOp op;
+//    aiTextureMapMode wrap_mode[2];
+//
+//    material_count=scene->mNumMaterials;
+//
+//    material_list=new MaterialData[material_count];
+//
+//    for(uint m=0;m<scene->mNumMaterials;m++)
+//        Convert(material_list[m],scene->mMaterials[m]);
+//}
+
+//void AssimpLoader::SaveTextures()
+//{
+//    const int tex_count=tex_list.GetCount();
+//
+//    LOG_INFO(OS_TEXT("TOTAL Texture Count: ")+OSString(tex_count));
+//
+//    if(tex_count<=0)
+//        return;
+//
+//    for(int i=0;i<tex_count;i++)
+//        LOG_INFO(U8_TEXT("\t")+UTF8String(i)+U8_TEXT("\t")+tex_list[i]);
+//
+//    LOG_BR;
+//
+//    io::MemoryOutputStream mos;
+//    io::LEDataOutputStream dos(&mos);
+//
+//    SaveUTF8StringList(&dos,tex_list);
+//
+//    SaveFile(mos.GetData(),mos.Tell(),OS_TEXT("tex_list"));
+//}
+//
+//template<typename T>
+//void AssimpLoader::SaveFaces(io::FileOutputStream *fos,const aiFace *face,const T count)
+//{
+//    T *data=new T[count*3];
+//
+//    const aiFace *sp=face;
+//    T *tp=data;
+//
+//    for(T i=0;i<count;i++)
+//    {
+//        *tp=sp->mIndices[0];++tp;
+//        *tp=sp->mIndices[1];++tp;
+//        *tp=sp->mIndices[2];++tp;
+//
+//        ++sp;
+//    }
+//
+//    fos->WriteFully(data,sizeof(T)*3*count);
+//
+//    delete[] data;
+//}
+//
+//void AssimpLoader::SaveTexCoord(float *tp,const aiVector3D *texcoord,const uint comp,const uint count)
+//{
+//    if(comp<=0||comp>3)
+//        return;
+//
+//    const uint size=1+sizeof(float)*comp*count;
+//
+//    const aiVector3D *sp=texcoord;
+//
+//    if(comp==1)
+//    {
+//        for(uint i=0;i<count;i++)
+//        {
+//            *tp=sp->x;++tp;
+//            ++sp;
+//        }
+//    }
+//    else
+//    if(comp==2)
+//    {
+//        for(uint i=0;i<count;i++)
+//        {
+//            *tp=sp->x;++tp;
+//            *tp=sp->y;++tp;
+//            ++sp;
+//        }
+//    }
+//    else
+//    if(comp==3)
+//    {
+//        for(uint i=0;i<count;i++)
+//        {
+//            *tp=sp->x;++tp;
+//            *tp=sp->y;++tp;
+//            *tp=sp->z;++tp;
+//            ++sp;
+//        }
+//    }
+//}
+
+void c4f_to_4b(uint8 *tp,const aiColor4D *c4,const int count)
+{
+    for(int i=0;i<count;i++)
+    {
+        *tp=c4->r*255;++tp;
+        *tp=c4->g*255;++tp;
+        *tp=c4->b*255;++tp;
+        *tp=c4->a*255;++tp;
+    }
+}
+
+void AxisY2Z(aiVector3D *v,const uint32 count)
+{
+    ai_real t;
+
+    for(uint32 i=0;i<count;i++)
+    {
+        t=v->y;
+        v->y=-(v->z);
+        v->z=t;
+
+        ++v;
+    }
+}
+
+void AssimpLoader::LoadMesh()
+{
+    if(!scene->HasMeshes())return;
+
+    UTF8String mesh_name;
+
+    total_file_bytes=0;
+
+    LOG_BR;
+    LOG_INFO(OS_TEXT("Mesh Count ")+OSString(scene->mNumMeshes));
+
+    uint vertex_total=0;
+    uint tri_total=0;
+    uint bone_total=0;
+
+    for(unsigned int i=0;i<scene->mNumMeshes;i++)
+    {
+        const aiMesh *mesh=scene->mMeshes[i];
+
+        const uint v3fdata_size=mesh->mNumVertices*3*sizeof(float);
+        const uint v4fdata_size=mesh->mNumVertices*4*sizeof(float);
+
+        if(mesh->mName.length)
+            mesh_name=U8_TEXT("Mesh [")+UTF8String(i)+U8_TEXT(":")+UTF8String(mesh->mName.C_Str())+U8_TEXT("]");
+        else
+            mesh_name=U8_TEXT("Mesh [")+UTF8String(i)+U8_TEXT("]");
+
+        int pn=mesh->mFaces[0].mNumIndices;
+
+        LOG_BR;
+
+        LOG_INFO(mesh_name+U8_TEXT(" PrimitiveTypes is ")+UTF8String(mesh->mPrimitiveTypes));
+
+        LOG_INFO(mesh_name+U8_TEXT(" vertex color count is ")+UTF8String(mesh->GetNumColorChannels()));
+        LOG_INFO(mesh_name+U8_TEXT(" texcoord count is ")+UTF8String(mesh->GetNumUVChannels()));
+
+        if(mesh->GetNumUVChannels()>0)
+            LOG_INFO(mesh_name+U8_TEXT(" Material Index is ")+UTF8String(mesh->mMaterialIndex));
+
+        if(mesh->HasPositions())LOG_INFO(mesh_name+U8_TEXT(" have Position, vertices count ")+UTF8String(mesh->mNumVertices));
+        if(mesh->HasFaces())LOG_INFO(mesh_name+U8_TEXT(" have Faces,faces count ")+UTF8String(mesh->mNumFaces));
+        if(mesh->HasNormals())LOG_INFO(mesh_name+U8_TEXT(" have Normals"));
+        if(mesh->HasTangentsAndBitangents())LOG_INFO(mesh_name+U8_TEXT(" have Tangent & Bitangents"));
+        if(mesh->HasBones())LOG_INFO(mesh_name+U8_TEXT(" have Bones, Bones Count ")+UTF8String(mesh->mNumBones));
+
+        vertex_total+=mesh->mNumVertices;
+        tri_total+=mesh->mNumFaces;
+        bone_total+=mesh->mNumBones;
+
+        LOG_INFO(mesh_name+U8_TEXT(" PN is ")+UTF8String(pn));
+
+        if(pn!=3)
+            continue;
+
+        MaterialData *mtl=&(material_list[mesh->mMaterialIndex]);
+
+        const uint uv_channels=mtl->uv_use.GetCount();
+
+        LOG_INFO(mesh_name+U8_TEXT(" use UV Channels is ")+UTF8String(uv_channels));
+
+        io::FileOutputStream fos;
+
+        OSString mesh_filename=main_filename+OS_TEXT(".")+OSString(i)+OS_TEXT(".mesh");
+
+        if(!fos.CreateTrunc(mesh_filename))
+        {
+            LOG_INFO(OS_TEXT("Create Mesh file Failed,filename: ")+mesh_filename);
+            continue;
+        }
+
+        {
+            MeshFileHeader ms;
+
+            ms.primitive_type   =PRIM_TRIANGLES;
+            ms.vertices_number  =mesh->mNumVertices;
+            ms.faces_number     =mesh->mNumFaces;
+            ms.color_channels   =mesh->GetNumColorChannels();
+            ms.texcoord_channels=uv_channels;
+            ms.material_index   =mesh->mMaterialIndex;
+
+            if(mesh->HasNormals())
+            {
+                if(mesh->HasTangentsAndBitangents())
+                    ms.ntb=NTB_BIT_ALL;
+                else
+                    ms.ntb=NTB_BIT_NORMAL;
+            }
+
+            ms.bones_number     =mesh->mNumBones;
+
+            fos.WriteFully(&ms,sizeof(MeshFileHeader));
+        }
+
+        if(mesh->HasPositions())
+        {
+            AxisY2Z(mesh->mVertices,mesh->mNumVertices);
+            fos.WriteFully(mesh->mVertices,v3fdata_size);
+        }
+
+        if(mesh->HasNormals())
+        {
+            AxisY2Z(mesh->mNormals,mesh->mNumVertices);
+            fos.WriteFully(mesh->mNormals,v3fdata_size);
+
+            if(mesh->HasTangentsAndBitangents())
+            {
+                AxisY2Z(mesh->mTangents,mesh->mNumVertices);
+                AxisY2Z(mesh->mBitangents,mesh->mNumVertices);
+
+                fos.WriteFully(mesh->mTangents,v3fdata_size);
+                fos.WriteFully(mesh->mBitangents,v3fdata_size);
+            }
+        }
+
+        if(mesh->GetNumColorChannels()>0)
+        {
+            const int64 vertex_color_size=mesh->mNumVertices*4*mesh->GetNumColorChannels();
+
+            uint8 *vertex_color=new uint8[vertex_color_size];
+            uint8 *tp=vertex_color;
+
+            for(int c=0;c<mesh->GetNumColorChannels();c++)
+            {
+                c4f_to_4b(tp,mesh->mColors[c],mesh->mNumVertices);
+                tp+=mesh->mNumVertices*4;
+            }
+
+            fos.WriteFully(vertex_color,vertex_color_size);
+
+            delete[] vertex_color;
+        }
+
+        if(mtl->uv_use.GetCount()>0
+         &&mesh->GetNumUVChannels())
+        {
+            int tc=0;
+            int comp_total=0;
+            uint *uv_use=mtl->uv_use.GetData();
+
+            //这里要重新审视数据来源，并不是每一个纹理通道都有数据，并且和材质对应。
+            //、、材质中的uv index具体对应啥 还不是很清楚
+
+            for(int c=0;c<AI_MAX_NUMBER_OF_TEXTURECOORDS;c++)
+            {
+                if(uv_use[c]>=mesh->GetNumUVChannels())
+                    uv_use[c]=0;
+
+                comp_total+=mesh->mNumUVComponents[uv_use[c]];
+            }
+
+            comp_total*=mesh->mNumVertices;
+
+            uint64 tc_size=mesh->GetNumUVChannels()+comp_total*sizeof(float);
+
+            uint8 *tc_data=new uint8[tc_size];
+            float *tp=(float *)(tc_data+mesh->GetNumUVChannels());
+            for(int c=0;c<uv_channels;c++)
+            {
+                tc_data[c]=mesh->mNumUVComponents[uv_use[c]];
+
+//                SaveTexCoord(tp,mesh->mTextureCoords[c],mesh->mNumUVComponents[c],mesh->mNumVertices);
+
+                tp+=mesh->mNumUVComponents[c]*mesh->mNumVertices;
+            }
+
+            fos.WriteFully(tc_data,tc_size);
+
+            delete[] tc_data;
+        }
+
+        if(mesh->HasFaces())
+        {
+            //if(mesh->mNumVertices>0xFFFF)
+            //    SaveFaces<uint32>(&fos,mesh->mFaces,mesh->mNumFaces);
+            //else
+            //    SaveFaces<uint16>(&fos,mesh->mFaces,mesh->mNumFaces);
+        }
+
+        fos.Close();
+    }
+
+    LOG_BR;
+    LOG_INFO(OS_TEXT("TOTAL Vertices Count ")+OSString(vertex_total));
+    LOG_INFO(OS_TEXT("TOTAL Faces Count ")+OSString(tri_total));
+    LOG_INFO(OS_TEXT("TOTAL Bones Count ")+OSString(bone_total));
+
+    LOG_INFO(OS_TEXT("TOTAL File Size ")+OSString(total_file_bytes));
+    LOG_BR;
+}
+
+void AssimpLoader::LoadScene(const UTF8String &front,io::DataOutputStream *dos,const aiNode *nd)
+{
+    aiVector3D bb_min,bb_max;
+    float box[6];
+    get_bounding_box(nd,&bb_min,&bb_max);
+
+    box[0]=bb_min.x;box[1]=bb_min.y;box[2]=bb_min.z;
+    box[3]=bb_max.x;box[4]=bb_max.y;box[5]=bb_max.z;
+
+    dos->WriteUTF8String(nd->mName.C_Str());
+    dos->WriteFloat(box,6);
+
+    dos->WriteFloat((float *)&(nd->mTransformation),16);
+
+    dos->WriteUint32(nd->mNumMeshes);
+
+    LOG_INFO(front+U8_TEXT("Node[")+UTF8String(nd->mName.C_Str())+U8_TEXT("][Mesh:")+UTF8String(nd->mNumMeshes)+U8_TEXT("][SubNode:")+UTF8String(nd->mNumChildren)+U8_TEXT("]"))
+
+    const UTF8String new_front=U8_TEXT("  ")+front;
+
+    if(nd->mNumMeshes>0)
+    {
+        dos->WriteUint32(nd->mMeshes,nd->mNumMeshes);
+
+        for(unsigned int i=0;i<nd->mNumMeshes;i++)
+        {
+            const aiMesh *mesh=scene->mMeshes[nd->mMeshes[i]];
+
+            LOG_INFO(new_front+U8_TEXT("Mesh[")+UTF8String(i)+U8_TEXT("] ")+UTF8String(mesh->mName.C_Str()));
+        }
+    }
+
+    dos->WriteUint32(nd->mNumChildren);
+
+    for(unsigned int n=0;n<nd->mNumChildren;++n)
+        LoadScene(new_front,dos,nd->mChildren[n]);
+}
+
+bool AssimpLoader::LoadFile(const OSString &filename)
+{
+    uint filesize;
+    char *filedata;
+
+    filesize=filesystem::LoadFileToMemory(filename,(void **)&filedata);
+
+    if(!filedata)
+        return(false);
+
+#ifdef _WIN32
+    const UTF8String ext_name=ToUTF8String(filesystem::ClipFileExtName(filename));
+#else
+    const UTF8String ext_name=filesystem::ClipFileExtName(filename);
+#endif//
+
+    scene=aiImportFileFromMemory(filedata,filesize,aiProcessPreset_TargetRealtime_MaxQuality|aiProcess_FlipUVs,ext_name.c_str());
+
+    delete[] filedata;
+
+    if(!scene)
+        return(false);
+
+    filename.SubString(main_filename,0,filename.FindRightChar(OS_TEXT('.')));
+
+    get_bounding_box(scene->mRootNode,&scene_min,&scene_max);
+
+    scene_center.x = (scene_min.x + scene_max.x) / 2.0f;
+    scene_center.y = (scene_min.y + scene_max.y) / 2.0f;
+    scene_center.z = (scene_min.z + scene_max.z) / 2.0f;
+
+    //这个顺序是假设了所有的材质和模型都有被使用
+    //aiProcessPreset_TargetRealtime_Quality已经指定了会删除多余材质，所以这里不用处理。
+    //但多余模型并不确定是否存在
+
+    io::FileOutputStream fos;
+    io::LEDataOutputStream dos(&fos);
+
+    OSString scene_filename=main_filename+OS_TEXT(".scene");
+
+    if(!fos.CreateTrunc(scene_filename))
+    {
+        LOG_INFO(OS_TEXT("Create Scene file Failed,filename: ")+scene_filename);
+        return(false);
+    }
+
+    dos.WriteFully("SCENE\x1a\x01",7);
+
+    dos.WriteUint32(scene->mNumMaterials);
+    dos.WriteUint32(scene->mNumMeshes);
+
+    LoadMaterial();                                     //载入所有材质
+
+    dos.WriteUint32(tex_list.GetCount());
+
+    LoadMesh();                                         //载入所有mesh
+    LoadScene(UTF8String(""),&dos,scene->mRootNode);    //载入场景节点
+
+    fos.Close();
+
+    //SaveTextures();
+
+    return(true);
+}
diff --git a/example/Vulkan/AssimpLoader.h b/example/Vulkan/AssimpLoader.h
new file mode 100644
index 00000000..59744249
--- /dev/null
+++ b/example/Vulkan/AssimpLoader.h
@@ -0,0 +1,68 @@
+#ifndef HGL_TOOL_MODEL_CONVERT_ASSIMP_LOADER_INCLUDE
+#define HGL_TOOL_MODEL_CONVERT_ASSIMP_LOADER_INCLUDE
+
+#include<hgl/math/Math.h>
+#include<hgl/type/List.h>
+#include<hgl/type/Map.h>
+#include<hgl/type/StringList.h>
+#include<hgl/graph/VertexBuffer.h>
+#include<hgl/graph/SceneNode.h>
+#include<hgl/graph/NTB.h>
+#include<hgl/graph/Material.h>
+#include<hgl/graph/Mesh.h>
+#include<hgl/io/FileOutputStream.h>
+#include<assimp/Importer.hpp>
+#include<assimp/scene.h>
+
+using namespace hgl;
+using namespace hgl::graph;
+
+class AssimpLoader
+{
+    OSString main_filename;
+
+    uint total_file_bytes;
+
+    const aiScene *scene;
+
+public:
+
+    aiVector3D scene_min, scene_max, scene_center;
+
+private:
+
+    UTF8StringList tex_list;
+
+    int material_count;
+    MaterialData *material_list;
+
+private:
+
+    void get_bounding_box_for_node(const aiNode *,aiVector3D *,aiVector3D *,aiMatrix4x4 *);
+    void get_bounding_box(const aiNode *,aiVector3D *,aiVector3D *);
+
+    //bool Convert(MaterialData &md,aiMaterial *mtl);
+
+    //void LoadMaterial();
+    void LoadMesh();
+    void LoadScene(const UTF8String &,io::DataOutputStream *,const aiNode *);
+
+    //void SaveFile(const void *,const uint &,const OSString &);
+    //void SaveFile(void **,const int64 *,const int &,const OSString &);
+
+    //void SaveTextures();
+
+    //template<typename T>
+    //void SaveFaces(io::FileOutputStream *,const aiFace *,const T);
+
+    //void SaveTexCoord(float *,const aiVector3D *,const uint,const uint);
+
+public:
+
+    AssimpLoader();
+    ~AssimpLoader();
+
+    bool LoadFile(const OSString &);
+    //bool SaveFile(const OSString &);
+};//class AssimpLoader
+#endif//HGL_TOOL_MODEL_CONVERT_ASSIMP_LOADER_INCLUDE
diff --git a/example/Vulkan/CMakeLists.txt b/example/Vulkan/CMakeLists.txt
index b2918245..0d7d33f2 100644
--- a/example/Vulkan/CMakeLists.txt
+++ b/example/Vulkan/CMakeLists.txt
@@ -8,4 +8,4 @@ CreateProject(1.indices_rect indices_rect.cpp)
 CreateProject(2.texture_rect texture_rect.cpp TGATexture.cpp)
 CreateProject(3.Geometry2D Geometry2D.cpp)
 CreateProject(4.Geometry3D Geometry3D.cpp)
-CreateProject(5.LoadModel LoadModel.cpp)
+CreateProject(5.LoadModel LoadModel.cpp TGATexture.cpp AssimpLoader.h AssimpLoader.cpp)
diff --git a/inc/hgl/graph/Material.h b/inc/hgl/graph/Material.h
index cfe39942..4c15c191 100644
--- a/inc/hgl/graph/Material.h
+++ b/inc/hgl/graph/Material.h
@@ -22,11 +22,13 @@ namespace hgl
 
         struct MaterialData
         {
+            UTF8String name;
+
             uint8 tex_count;
 
             MaterialTextureData *tex_list;
 
-            Set<int> uv_use;
+            Set<uint> uv_use;
 
             bool two_sided=false;
             uint shading_model=0;
@@ -64,7 +66,7 @@ namespace hgl
             {
                 diffuse.Set(1,1,1,1);
                 specular.Set(0,0,0,1);
-                ambient.Set(0.2,0.2,0.2,1.0f);
+                ambient.Set(0.2f,0.2f,0.2f,1.0f);
                 emission.Set(0,0,0,1);
 
                 shininess=0;