xof     0302txt      0032       //xof意味着正在加载的是某个版本的X文件，//后面是组版本号与次版本号32（0032）Material   UgpMat {               //Material    0.1.0;  1.0  1.0;   1.0;  ;        //Diffuse    Color（反射颜色）0.0;                               //Specular   power0.0;  0.0;  0.0; ;             //Specular      color(颜色三坐标意味RGB)0.0;    0.0; 0.0;;             //Emissive    colorTextureFilename("ugp.bmp"；）  //Texture      filename(纹理文件名）}//   The   square  mesh  data.Mesh   Square   {          //定义了完整网格4;                         //Number   of   vertexs.1.0;   1.0;   0.0; ，   //Vertex   1- 1.0;   1.0;   0.0; ， //Vertex    2- 1.0;   -1.0;   0.0; ，   //Vertex     31.0;   -1.0;   0.0;        //Vertex       42;                             //Number   of   triangles.3;   0,   1,  2;           //Triangle   indices   1.3  ;   0,   2,  3;        //Triangle  indices    2.MeshMaterialList {       //该模板指明网格中的外观使用哪种材质1;                                 //Number  of  materials.2;                                  //Number    of    faces.0;                              //Face   0   use  material    0.0; ;                           //Face   1    use   material   0.{UgpMat}                    //Reference    of   material.}MeshTextureCoords  {       //该模板将纹理映射到网格4;0.0;     0.0;,              //Vertex  1   tex      coord,0.0;     1.0;,            //Vertex    2   tex      coord.1.0;     1.0;,        //Vertex   3  tex      coord.1.0;    0.0; ;       //Vertex    4    tex     coord.}}    //End      of    Mesh   Squar

     LPDIRECT3D9             g_pD3D           = NULL;      // Direct3D对象LPDIRECT3DDEVICE9       g_pd3dDevice     = NULL; // Direct3D设备LPD3DXMESH              g_pMesh          = NULL;     // mesh模型指针D3DMATERIAL9*           g_pMeshMaterials = NULL;   //mesh模型所用材质指针LPDIRECT3DTEXTURE9*     g_pMeshTextures  = NULL; // mesh模型所用纹理指针DWORD                   g_dwNumMaterials = 0L;          //mesh模型材质数量

  HRESULT InitD3D( HWND hWnd ){// 创建direct3D对象if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) )return E_FAIL;//填写结构体创建direct3D设备，使用z深度缓冲D3DPRESENT_PARAMETERS d3dpp;ZeroMemory( &d3dpp, sizeof(d3dpp) );d3dpp.Windowed = TRUE;d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;d3dpp.BackBufferFormat = D3DFMT_UNKNOWN;d3dpp.EnableAutoDepthStencil = TRUE;d3dpp.AutoDepthStencilFormat = D3DFMT_D16;//创建D3D设备if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd,D3DCREATE_SOFTWARE_VERTEXPROCESSING,&d3dpp, &g_pd3dDevice ) ) ){return E_FAIL;}// 开启z深度缓冲g_pd3dDevice->SetRenderState( D3DRS_ZENABLE, TRUE );// 开启环境光g_pd3dDevice->SetRenderState( D3DRS_AMBIENT, 0xffffffff );return S_OK;}

     HRESULT InitGeometry(){LPD3DXBUFFER pD3DXMtrlBuffer;// 从文件中加载Mesh模型if( FAILED( D3DXLoadMeshFromX( "Tiger.x", D3DXMESH_SYSTEMMEM,g_pd3dDevice, NULL,&pD3DXMtrlBuffer, NULL, &g_dwNumMaterials,&g_pMesh ) ) ){// 如果当前文件夹中没有需要加载的X文件，则尝试在上一级目录加载if( FAILED( D3DXLoadMeshFromX( "../Tiger.x", D3DXMESH_SYSTEMMEM,g_pd3dDevice, NULL,&pD3DXMtrlBuffer, NULL, &g_dwNumMaterials,&g_pMesh ) ) ){MessageBox(NULL, "Could not find tiger.x", "Meshes.exe", MB_OK);return E_FAIL;}}//需要从pD3DXMtrlBuffer指向的缓冲区中释放材质信息和纹理名称D3DXMATERIAL* d3dxMaterials = (D3DXMATERIAL*)pD3DXMtrlBuffer->GetBufferPointer();g_pMeshMaterials = new    D3DMATERIAL9[g_dwNumMaterials];g_pMeshTextures  = new   LPDIRECT3DTEXTURE9[g_dwNumMaterials];for( DWORD i=0; i<g_dwNumMaterials; i++ ){// 复制材质g_pMeshMaterials[i] = d3dxMaterials[i].MatD3D;// 为材质设定环境光颜色g_pMeshMaterials[i].Ambient = g_pMeshMaterials[i].Diffuse;g_pMeshTextures[i] = NULL;if(    d3dxMaterials[i].pTextureFilename != NULL &&lstrlen(d3dxMaterials[i].pTextureFilename) > 0 ){//通过纹理文件名加载纹理if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice,d3dxMaterials[i].pTextureFilename,&g_pMeshTextures[i] ) ) ){//如果纹理文件不在当前文件夹中尝试上一级文件夹const TCHAR* strPrefix = TEXT("../");const int lenPrefix = lstrlen( strPrefix );TCHAR strTexture[MAX_PATH];lstrcpyn( strTexture, strPrefix, MAX_PATH );lstrcpyn( strTexture +      lenPrefix,    d3dxMaterials[i].pTextureFilename,                MAX_PATH - lenPrefix );// 从上一文件夹创建if( FAILED( D3DXCreateTextureFromFile( g_pd3dDevice,strTexture,&g_pMeshTextures[i] ) ) ){MessageBox(NULL, "Could not find texture map", "Meshes.exe", MB_OK);}}}}// 释放材质缓冲区pD3DXMtrlBuffer->Release();return S_OK;}

       HRESULT WINAPI D3DXLoadMeshFromX(LPCTSTR pFilename,//加载的X文件名可以是相对路径名或绝对路径名DWORD Options,                        //Mesh模型标识符LPDIRECT3DDEVICE9 pD3DDevice,LPD3DXBUFFER *ppAdjacency,                                 //邻近三角形信息LPD3DXBUFFER *ppMaterials,                               //   返回材质指针LPD3DXBUFFER *PPEffectTnstances,                 //   返回特效实例指针DWORD *pNumMaterials,                                      //     返回材质数量LPD3DXMESH *ppMesh                                      //    返回被加载的Mesh模型);