怎么加载纹理

heji788189

我拷贝的一段程序运行后是一个白色的方块在旋转没有把纹理加载上去，我是把crate.jpg这张图片直接放到项目文件夹的我估计问题就出在这如果不是这样应该怎么做，怎么把图片资源加入，谢谢，我是从C++自学的目前只会C++语法正在学directx3D。


#include <windows.h>
#include <d3d9.h>                   // Direct3D头文件
#include <d3dx9.h> // D3DX库的头文件
#pragma comment(lib,"dxerr.lib")
#pragma comment(lib,"dxguid.lib")
#pragma comment(lib,"d3d9.lib")
#pragma comment(lib,"d3dx9.lib")
#pragma comment(lib,"winmm.lib")
#define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } }

wchar_t *g_pClassName  = L"TextureFilter";      // 窗口类名
wchar_t *g_pWindowName = L"纹理过滤示例";       // 窗口标题名

LPDIRECT3DDEVICE9       g_pd3dDevice = NULL;    // D3D设备接口
LPDIRECT3DVERTEXBUFFER9 g_pVertexBuf = NULL;    // 顶点缓存接口
LPDIRECT3DINDEXBUFFER9  g_pIndexBuf  = NULL;    // 索引缓存接口
LPDIRECT3DTEXTURE9      g_pTexture   = NULL;    // 纹理接口
LPDIRECT3DTEXTURE9      g_pMipTexture= NULL;    // 渐进纹理

// 顶点结构
struct CUSTOMVERTEX
{
    FLOAT _x, _y, _z;               // 顶点的位置
    FLOAT _u, _v;                   // 纹理坐标
    CUSTOMVERTEX(FLOAT x, FLOAT y, FLOAT z, FLOAT u, FLOAT v)
        : _x(x), _y(y), _z(z), _u(u), _v(v) {}
};
#define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ | D3DFVF_TEX1)

HRESULT InitDirect3D(HWND hWnd);    // 初始化Direct3D
VOID Direct3DRender();              // 渲染图形
VOID Direct3DCleanup();             // 清理Direct3D资源

// 窗口消息处理函数声明
LRESULT CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);

//--------------------------------------------------------------------------------------
// Name: WinMain();
// Desc: Windows应用程序入口函数
//--------------------------------------------------------------------------------------
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
                   LPSTR lpCmdLine, int nShowCmd)
{
    // 初始化窗口类
    WNDCLASS wndclass;
    wndclass.cbClsExtra     = 0;
    wndclass.cbWndExtra     = 0;
    wndclass.hbrBackground  = (HBRUSH)GetStockObject(WHITE_BRUSH);  // 窗口背景
    wndclass.hCursor        = LoadCursor(NULL, IDC_ARROW);          // 光标形状
    wndclass.hIcon          = LoadIcon(NULL, IDI_APPLICATION);      // 窗口小图标
    wndclass.hInstance      = hInstance;
    wndclass.lpfnWndProc    = WndProc;
    wndclass.lpszClassName  = g_pClassName;
    wndclass.lpszMenuName   = NULL;
    wndclass.style          = CS_HREDRAW | CS_VREDRAW;

    // 注册窗口类
    if (!RegisterClass(&wndclass))
        return 0;

    // 创建窗口
    HWND hWnd = CreateWindow(g_pClassName, g_pWindowName, WS_OVERLAPPEDWINDOW,
        100, 100, 640, 480, NULL, NULL, wndclass.hInstance, NULL);

    // 初始化Direct3D
    InitDirect3D(hWnd);

    // 显示、更新窗口
    ShowWindow(hWnd, SW_SHOWDEFAULT);
    UpdateWindow(hWnd);

    // 消息循环
    MSG msg;
    ZeroMemory(&msg, sizeof(msg));
    while (msg.message!=WM_QUIT)
    {
        if (PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
        else
        {
            Direct3DRender();       // 绘制3D场景
        }
    }

    UnregisterClass(g_pClassName, wndclass.hInstance);
    return 0;
}

//--------------------------------------------------------------------------------------
// Name: WndProc()
// Desc: 窗口消息处理函数
//--------------------------------------------------------------------------------------
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_PAINT:                  // 客户区重绘消息
        Direct3DRender();           // 渲染图形
        ValidateRect(hWnd, NULL);   // 更新客户区的显示
        break;
    case WM_KEYDOWN:                // 键盘按下消息
        if (wParam == VK_ESCAPE)    // ESC键
            DestroyWindow(hWnd);    // 销毁窗口, 并发送一条WM_DESTROY消息
        break;
    case WM_DESTROY:                // 窗口销毁消息
        Direct3DCleanup();          // 清理Direct3D
        PostQuitMessage(0);         // 退出程序
        break;
    }
    // 默认的消息处理
    return DefWindowProc( hWnd, message, wParam, lParam );
}

//--------------------------------------------------------------------------------------
// Name: InitDirect3D()
// Desc: 初始化Direct3D
//--------------------------------------------------------------------------------------
HRESULT InitDirect3D(HWND hWnd)
{
    // 创建IDirect3D接口
    LPDIRECT3D9 pD3D = NULL;                    // IDirect3D9接口
    pD3D = Direct3DCreate9(D3D_SDK_VERSION);    // 创建IDirect3D9接口对象
    if (pD3D == NULL) return E_FAIL;

    // 获取硬件设备信息
    D3DCAPS9 caps; int vp = 0;
    pD3D->GetDeviceCaps( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &caps );
    if( caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT )
        vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;
    else
        vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;

    // 创建Direct3D设备接口
    D3DPRESENT_PARAMETERS d3dpp;
    ZeroMemory(&d3dpp, sizeof(d3dpp));
    d3dpp.BackBufferWidth            = 640;
    d3dpp.BackBufferHeight           = 480;
    d3dpp.BackBufferFormat           = D3DFMT_A8R8G8B8;
    d3dpp.BackBufferCount            = 1;
    d3dpp.MultiSampleType            = D3DMULTISAMPLE_NONE;
    d3dpp.MultiSampleQuality         = 0;
    d3dpp.SwapEffect                 = D3DSWAPEFFECT_DISCARD;
    d3dpp.hDeviceWindow              = hWnd;
    d3dpp.Windowed                   = true;
    d3dpp.EnableAutoDepthStencil     = true;
    d3dpp.AutoDepthStencilFormat     = D3DFMT_D24S8;
    d3dpp.Flags                      = 0;
    d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;
    d3dpp.PresentationInterval       = D3DPRESENT_INTERVAL_IMMEDIATE;

    pD3D->CreateDevice(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
        hWnd, vp, &d3dpp, &g_pd3dDevice);
    pD3D->Release();

    // 创建纹理
    D3DXCreateTextureFromFile(g_pd3dDevice, L"crate.jpg", &g_pTexture);
    g_pd3dDevice->SetTexture(0, g_pTexture);

    // 创建渐进纹理
    D3DXCreateTextureFromFileEx(g_pd3dDevice, L"crate.jpg", 32, 32, 0, 0, D3DFMT_X8R8G8B8,
        D3DPOOL_MANAGED, D3DX_DEFAULT, D3DX_DEFAULT, 0xFF000000, 0, 0, &g_pMipTexture);

    // 创建顶点缓存
    g_pd3dDevice->CreateVertexBuffer(24 * sizeof(CUSTOMVERTEX), 0,
        D3DFVF_CUSTOMVERTEX, D3DPOOL_DEFAULT, &g_pVertexBuf, NULL);

    // 填充顶点数据
    CUSTOMVERTEX *pVertices = NULL;
    g_pVertexBuf->Lock(0, 0, (void**)&pVertices, 0);

    // 正面顶点数据
    pVertices[0] = CUSTOMVERTEX(-1.0f,  1.0f, -1.0f, 0.0f, 0.0f);
    pVertices[1] = CUSTOMVERTEX( 1.0f,  1.0f, -1.0f, 1.0f, 0.0f);
    pVertices[2] = CUSTOMVERTEX( 1.0f, -1.0f, -1.0f, 1.0f, 1.0f);
    pVertices[3] = CUSTOMVERTEX(-1.0f, -1.0f, -1.0f, 0.0f, 1.0f);

    // 背面顶点数据
    pVertices[4] = CUSTOMVERTEX( 1.0f,  1.0f, 1.0f, 0.0f, 0.0f);
    pVertices[5] = CUSTOMVERTEX(-1.0f,  1.0f, 1.0f, 1.0f, 0.0f);
    pVertices[6] = CUSTOMVERTEX(-1.0f, -1.0f, 1.0f, 1.0f, 1.0f);
    pVertices[7] = CUSTOMVERTEX( 1.0f, -1.0f, 1.0f, 0.0f, 1.0f);

    // 顶面顶点数据
    pVertices[8]  = CUSTOMVERTEX(-1.0f, 1.0f,  1.0f, 0.0f, 0.0f);
    pVertices[9]  = CUSTOMVERTEX( 1.0f, 1.0f,  1.0f, 1.0f, 0.0f);
    pVertices[10] = CUSTOMVERTEX( 1.0f, 1.0f, -1.0f, 1.0f, 1.0f);
    pVertices[11] = CUSTOMVERTEX(-1.0f, 1.0f, -1.0f, 0.0f, 1.0f);

    // 底面顶点数据
    pVertices[12] = CUSTOMVERTEX(-1.0f, -1.0f, -1.0f, 0.0f, 0.0f);
    pVertices[13] = CUSTOMVERTEX( 1.0f, -1.0f, -1.0f, 1.0f, 0.0f);
    pVertices[14] = CUSTOMVERTEX( 1.0f, -1.0f,  1.0f, 1.0f, 1.0f);
    pVertices[15] = CUSTOMVERTEX(-1.0f, -1.0f,  1.0f, 0.0f, 1.0f);

    // 左侧面顶点数据
    pVertices[16] = CUSTOMVERTEX(-1.0f,  1.0f,  1.0f, 0.0f, 0.0f);
    pVertices[17] = CUSTOMVERTEX(-1.0f,  1.0f, -1.0f, 1.0f, 0.0f);
    pVertices[18] = CUSTOMVERTEX(-1.0f, -1.0f, -1.0f, 1.0f, 1.0f);
    pVertices[19] = CUSTOMVERTEX(-1.0f, -1.0f,  1.0f, 0.0f, 1.0f);

    // 右侧面顶点数据
    pVertices[20] = CUSTOMVERTEX( 1.0f,  1.0f, -1.0f, 0.0f, 0.0f);
    pVertices[21] = CUSTOMVERTEX( 1.0f,  1.0f,  1.0f, 1.0f, 0.0f);
    pVertices[22] = CUSTOMVERTEX( 1.0f, -1.0f,  1.0f, 1.0f, 1.0f);
    pVertices[23] = CUSTOMVERTEX( 1.0f, -1.0f, -1.0f, 0.0f, 1.0f);
    g_pVertexBuf->Unlock();

    // 创建索引缓存
    g_pd3dDevice->CreateIndexBuffer(36 * sizeof(WORD), 0,
        D3DFMT_INDEX16, D3DPOOL_DEFAULT, &g_pIndexBuf, NULL);

    // 填充索引数据
    WORD *pIndices = NULL;
    g_pIndexBuf->Lock(0, 0, (void**)&pIndices, 0);
   
    // 正面索引数据
    pIndices[0] = 0; pIndices[1] = 1; pIndices[2] = 2;
    pIndices[3] = 0; pIndices[4] = 2; pIndices[5] = 3;

    // 背面索引数据
    pIndices[6] = 4; pIndices[7]  = 5; pIndices[8]  = 6;
    pIndices[9] = 4; pIndices[10] = 6; pIndices[11] = 7;

    // 顶面索引数据
    pIndices[12] = 8; pIndices[13] =  9; pIndices[14] = 10;
    pIndices[15] = 8; pIndices[16] = 10; pIndices[17] = 11;

    // 底面索引数据
    pIndices[18] = 12; pIndices[19] = 13; pIndices[20] = 14;
    pIndices[21] = 12; pIndices[22] = 14; pIndices[23] = 15;

    // 左侧面索引数据
    pIndices[24] = 16; pIndices[25] = 17; pIndices[26] = 18;
    pIndices[27] = 16; pIndices[28] = 18; pIndices[29] = 19;

    // 右侧面索引数据
    pIndices[30] = 20; pIndices[31] = 21; pIndices[32] = 22;
    pIndices[33] = 20; pIndices[34] = 22; pIndices[35] = 23;
    g_pIndexBuf->Unlock();

    // 设置材质
    D3DMATERIAL9 mtrl;
    ::ZeroMemory(&mtrl, sizeof(mtrl));
    mtrl.Ambient  = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f);
    mtrl.Diffuse  = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f);
    mtrl.Specular = D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f);
    g_pd3dDevice->SetMaterial(&mtrl);

    // 设置环境光
    g_pd3dDevice->SetRenderState(D3DRS_AMBIENT, D3DXCOLOR(1.0f, 1.0f, 1.0f, 1.0f));

    // 设置取景变换矩阵
    D3DXMATRIX  matView;
    D3DXVECTOR3 vEye(0.0f, 3.0f, -5.0f);
    D3DXVECTOR3 vAt(0.0f, 0.0f, 0.0f);
    D3DXVECTOR3 vUp(0.0f, 1.0f, 0.0f);

    D3DXMatrixLookAtLH(&matView, &vEye, &vAt, &vUp);
    g_pd3dDevice->SetTransform(D3DTS_VIEW, &matView);

    // 设置投影变换矩阵
    D3DXMATRIX matProj;
    D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI / 4.0f, 1.0f, 1.0f, 1000.0f);
    g_pd3dDevice->SetTransform(D3DTS_PROJECTION, &matProj);
    return S_OK;
}

//--------------------------------------------------------------------------------------
// Name: Direct3DRender()
// Desc: 绘制3D场景
//--------------------------------------------------------------------------------------
VOID Direct3DRender()
{
    g_pd3dDevice->Clear(0, NULL, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER,
        D3DCOLOR_XRGB(0, 0, 0), 1.0f, 0);
    g_pd3dDevice->BeginScene();                     // 开始绘制

    // 设置世界变换矩阵
    FLOAT fAngle = (float)::timeGetTime() / 360.0f;

    D3DXMATRIX matWorld, Rx, Ry, Rz;
    D3DXMatrixIdentity(&matWorld);
    D3DXMatrixRotationX(&Rx, fAngle);
    D3DXMatrixRotationY(&Ry, fAngle);
    D3DXMatrixRotationZ(&Rz, fAngle);
    matWorld = Rx * Ry * Rz * matWorld;
    g_pd3dDevice->SetTransform(D3DTS_WORLD, &matWorld);

    // 设置纹理过滤方式
    if (::GetAsyncKeyState(0x31) & 0x8000f)
    {   // 最近点采样过滤
        g_pd3dDevice->SetTexture(0, g_pTexture);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_POINT);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_POINT);
    }
    if (::GetAsyncKeyState(0x32) & 0x8000f)
    {   // 线性纹理过滤
        g_pd3dDevice->SetTexture(0, g_pTexture);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);
    }
    if (::GetAsyncKeyState(0x33) & 0x8000f)
    {   // 各向异性过滤
        g_pd3dDevice->SetTexture(0, g_pTexture);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAXANISOTROPY, 4);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_ANISOTROPIC);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_ANISOTROPIC);
    }
    if (::GetAsyncKeyState(0x34) & 0x8000f)
    {   // 渐进纹理过滤
        g_pd3dDevice->SetTexture(0, g_pMipTexture);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR);
        g_pd3dDevice->SetSamplerState(0, D3DSAMP_MAXMIPLEVEL, 16);
    }

    // 绘制立方体
    g_pd3dDevice->SetStreamSource(0, g_pVertexBuf, 0, sizeof(CUSTOMVERTEX));
    g_pd3dDevice->SetFVF(D3DFVF_CUSTOMVERTEX);
    g_pd3dDevice->SetIndices(g_pIndexBuf);
    g_pd3dDevice->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 24, 0, 12);

    g_pd3dDevice->EndScene();                       // 结束绘制
    g_pd3dDevice-&gtresent(NULL, NULL, NULL, NULL);  // 翻转
}

//--------------------------------------------------------------------------------------
// Name: Direct3DCleanup()
// Desc: 清理Direct3D, 并释放COM接口
//--------------------------------------------------------------------------------------
VOID Direct3DCleanup()
{
    SAFE_RELEASE(g_pMipTexture);
    SAFE_RELEASE(g_pTexture);
    SAFE_RELEASE(g_pIndexBuf);
    SAFE_RELEASE(g_pVertexBuf);
    SAFE_RELEASE(g_pd3dDevice);
}

sgcx0620

帮你调试过了 代码没问题 可以显示纹理 你应该是放错图片文件的位置了 跟项目vcproj文件放在一层目录下试试