HLSL效果框架实例之高斯模糊

代码已经上传至git hub 见：https://github.com/Jeromecen/GaussianBlur

实例目的

1.提供了一个完整的fx框架编写Shader可运行程序,解决掉了编写过程中遇到的所有问题。验证了在FX框架可以不用GetParameterByName获取句柄的，直接用字符串作为句柄即可。
2.对高斯模糊图片提供了一个思路，就是高斯过滤矩阵通过程序设置给Shader,相比在Shader中做高斯运算性能更高
或者相比在Shader中写死高斯过滤矩阵，但是这样会不够灵活。
3.合理使用GPU Shader可以有效的提高图形程序性能，运用GPU强大的并行大量数据计算能力，简单随意测试了下CPU降低了大概10%。

调试错误和经验总结

//1).获取效果文件，hlsl注意fx要是asscii格式，不能是utf8格式
//2).结构体不能VS_OUTPUT outData = VS_OUTPUT(0);而是直接VS_OUTPUT outData就好了。
//3).顶点着色器输入输出都要float4类型，且像素着色器不能输入顶点，因为已经是在光栅化阶段了。
// 顶点着色器的输入
//struct VS_INPUT
//{
//    float4 POS : POSITION;
//    float2 UV : TEXCOORD0;
//};
//// 顶点着色器的输出
//struct VS_OUTPUT
//{
//    float4 POS : POSITION;
//    float2 UV : TEXCOORD0;
//};
// 4).纹理需要用Sampler正确，不能用texture代替sampler,或者输入texture当sampler来用的方式
// 5).alpha融合需要注意，否则会导致渲染层次有问题，融合结果

// 6).渲染框架要正确，无论是固定管线还是着色器，每帧的Clear,BeginSecne,渲染设置顶点格式/顶点数据/索引数据/Draw函数，EndScene
// 都是要首先正确的。
// 7).对于顶点部分:
// 顶点位置要正确，索引下标要正确，还有世界视图投影变换，特别是索引如果是拷贝的那么很容易什么都不提交PIX也看不到原因
// 8). 对于像素部分：颜色没有出来，可能是光照没有关闭又没有设置材质，也可能是纹理缺失或者设置错误，alpha融合和各种融合情况
// 9).注意视口外裁剪不可见，背面剔除，深度剔除，模板过滤，导致物体绘制不出来。
// 10).要使用上述思维进行代码分析，errorBuffer/Control panel/#define D3D_DEBUG_INFO/PIX来调试分析,反复对比注释提高理论查找问题
// 如果有N卡用NVIDIA Nsight，GPA分析问题和性能更好。
// 11).图像异常：UV坐标没对，PIX传入都没对，那么是UV相关设置出了问题，最后对比发现是顶点声明出了问题：
//D3DVERTEXELEMENT9 Decl_Element [] =
//{
//    {eBlurDT_Pos, 0, D3DDECLTYPE_FLOAT4,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_POSITION, 0},
//    {eBlurDT_UV, 0, D3DDECLTYPE_FLOAT2,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_TEXCOORD, 0},
//    D3DDECL_END()
//};
//而不是：
    //D3DVERTEXELEMENT9 Decl_Element [] =
    //{
    //    {0, 0, D3DDECLTYPE_FLOAT4,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_POSITION, 0},
    //    {0, 16, D3DDECLTYPE_FLOAT2,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_TEXCOORD, 0},
    //    D3DDECL_END()
    //};

源码

blur.fx

// Globals// 纹理texture BlurTex;// 世界视图投影矩阵matrix WorldViewProj;// 纹理大小float2    TexSize;// 高斯过滤矩阵，暂时用3x3的float3x3 ArrayGaussianFilter;sampler BlurSampler = sampler_state{    Texture = <BlurTex>;    MinFilter = LINEAR;    MagFilter = LINEAR;    MipFilter = LINEAR;};//// Structures// 顶点着色器的输入struct VS_INPUT{    float4 POS : POSITION;    float2 UV : TEXCOORD0;};// 顶点着色器的输出struct VS_OUTPUT{    float4 POS : POSITION;    float2 UV : TEXCOORD0;};VS_OUTPUT VS_Main( VS_INPUT input ){    VS_OUTPUT outData;        outData.POS = mul( input.POS, WorldViewProj);    outData.UV = input.UV;    return outData;}// 像素着色器的输入struct PS_INPUT{     float2 UV : TEXCOORD0;};// 像素着色器的输出struct PS_OUTPUT{    vector diffuse : COLOR0;};//用来做滤波操作的函数float4 dip_filter3(float3x3 _filter , sampler2D _image, float2 _xy, float2 texSize){     //纹理坐标采样的偏移     float2 _filter_pos_delta[3][3] =     {        { float2(-1.0 , -1.0) , float2(0,-1.0), float2(1.0 , -1.0) },        { float2( -1.0 , 0.0) , float2(0.0, 0.0), float2(1.0 ,  0.0) },        { float2( -1.0 , 1.0) , float2(0, 1.0), float2(1.0 ,  1.0) },     };     //最终的输出颜色     float4 final_color = float4(0.0,0.0,0.0,1.0f);     //对图像做滤波操作     for(int i = 0 ; i < 3 ; i++ )     {         for(int j = 0 ; j < 3 ; j++ )         {              //计算采样点，得到当前像素附近的像素的坐标              float2 _xy_new = float2(_xy.x + _filter_pos_delta[i][j].x ,                                  _xy.y + _filter_pos_delta[i][j].y);              float2 _uv_new = float2(_xy_new.x/texSize.x , _xy_new.y/texSize.y);              //采样并乘以滤波器权重，然后累加              final_color += tex2D( _image, _uv_new ) * _filter[i][j];         }     }     return final_color;}PS_OUTPUT PS_Main( PS_INPUT input){   PS_OUTPUT output;   float2  intXY = float2(input.UV.x * TexSize.x , input.UV.y * TexSize.y);   //用于模糊操作的滤波器   // output.diffuse = tex2D(BlurSampler, input.UV);   output.diffuse = dip_filter3( ArrayGaussianFilter , BlurSampler , intXY, TexSize);   return output;}// 效果框架technique BurTechnique{    pass P0    {        // 状态设置        Lighting      = false;        // 编译        vertexShader = compile vs_2_0 VS_Main();                  AlphaBlendEnable = false;        StencilEnable = false;        pixelShader = compile ps_2_0 PS_Main();    }}

d3dUtility.h

/*LPDIRECT3D9等加入*///#define D3D_DEBUG_INFO#include <d3d9.h>#include <d3dx9.h>#include <time.h>#include <tchar.h>/*D3DXMATRIX加入*/#include <d3dx9math.h>/*LPDIRECT3D9等加入*/#pragma comment(lib,"d3d9.lib")/*D3DXMatrixPerspectiveFovLH加入*/#pragma comment(lib,"d3dx9.lib")// 媒体相关的库，用于抵挡的游戏音频和游戏手柄#pragma comment(lib, "winmm.lib")// 工程属性->清单工具->输入输出->嵌入清单->是改为否#include <d3dx9.h>#include <string>#include <limits>namespace d3d{//// Init//bool InitD3D(HINSTANCE hInstance,       // [in] Application instance.int width, int height,     // [in] Backbuffer dimensions.bool windowed,             // [in] Windowed (true)or full screen (false).D3DDEVTYPE deviceType,     // [in] HAL or REFIDirect3DDevice9** device);// [out]The created device.int EnterMsgLoop( bool (*ptr_display)(float timeDelta));LRESULT CALLBACK WndProc(HWND hwnd,UINT msg, WPARAM wParam,LPARAM lParam);//// Cleanup//template<class T> void Release(T t){if( t ){t->Release();t = 0;}}template<class T> void Delete(T t){if( t ){delete t;t = 0;}}} 

d3dUtility.cpp

#include "d3dUtility.h"// vertex formatsconst DWORD d3d::Vertex::FVF = D3DFVF_XYZ | D3DFVF_NORMAL | D3DFVF_TEX1;bool d3d::InitD3D(    HINSTANCE hInstance,    int width, int height,    bool windowed,    D3DDEVTYPE deviceType,    IDirect3DDevice9** device){    //    // Create the main application window.    //    WNDCLASS wc;    wc.style         = CS_HREDRAW | CS_VREDRAW;    wc.lpfnWndProc   = (WNDPROC)d3d::WndProc;    wc.cbClsExtra    = 0;    wc.cbWndExtra    = 0;    wc.hInstance     = hInstance;    wc.hIcon         = LoadIcon(0, IDI_APPLICATION);    wc.hCursor       = LoadCursor(0, IDC_ARROW);    wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);    wc.lpszMenuName  = 0;    wc.lpszClassName = "Direct3D9App";    if( !RegisterClass(&wc) )    {        ::MessageBox(0, "RegisterClass() - FAILED", 0, 0);        return false;    }            HWND hwnd = 0;    hwnd = ::CreateWindow("Direct3D9App", "Direct3D9App",        WS_EX_TOPMOST,        0, 0, width, height,        0 /*parent hwnd*/, 0 /* menu */, hInstance, 0 /*extra*/);    if( !hwnd )    {        ::MessageBox(0, "CreateWindow() - FAILED", 0, 0);        return false;    }    ::ShowWindow(hwnd, SW_SHOW);    ::UpdateWindow(hwnd);    //    // Init D3D:    //    HRESULT hr = 0;    // Step 1: Create the IDirect3D9 object.    IDirect3D9* d3d9 = 0;    d3d9 = Direct3DCreate9(D3D_SDK_VERSION);    if( !d3d9 )    {        ::MessageBox(0, "Direct3DCreate9() - FAILED", 0, 0);        return false;    }    // Step 2: Check for hardware vp.    D3DCAPS9 caps;    d3d9->GetDeviceCaps(D3DADAPTER_DEFAULT, deviceType, &caps);    int vp = 0;    if( caps.DevCaps & D3DDEVCAPS_HWTRANSFORMANDLIGHT )        vp = D3DCREATE_HARDWARE_VERTEXPROCESSING;    else        vp = D3DCREATE_SOFTWARE_VERTEXPROCESSING;    // Step 3: Fill out the D3DPRESENT_PARAMETERS structure.     D3DPRESENT_PARAMETERS d3dpp;    d3dpp.BackBufferWidth            = width;    d3dpp.BackBufferHeight           = height;    d3dpp.BackBufferFormat           = D3DFMT_A8R8G8B8;    d3dpp.BackBufferCount            = 1;    d3dpp.MultiSampleType            = D3DMULTISAMPLE_NONE;    d3dpp.MultiSampleQuality         = 0;    d3dpp.SwapEffect                 = D3DSWAPEFFECT_DISCARD;    d3dpp.hDeviceWindow              = hwnd;    d3dpp.Windowed                   = windowed;    d3dpp.EnableAutoDepthStencil     = true;    d3dpp.AutoDepthStencilFormat     = D3DFMT_D24S8;    d3dpp.Flags                      = 0;    d3dpp.FullScreen_RefreshRateInHz = D3DPRESENT_RATE_DEFAULT;    d3dpp.PresentationInterval       = D3DPRESENT_INTERVAL_IMMEDIATE;    // Step 4: Create the device.    hr = d3d9->CreateDevice(        D3DADAPTER_DEFAULT, // primary adapter        deviceType,         // device type        hwnd,               // window associated with device        vp,                 // vertex processing        &d3dpp,             // present parameters        device);            // return created device    if( FAILED(hr) )    {        // try again using a 16-bit depth buffer        d3dpp.AutoDepthStencilFormat = D3DFMT_D16;                hr = d3d9->CreateDevice(            D3DADAPTER_DEFAULT,            deviceType,            hwnd,            vp,            &d3dpp,            device);        if( FAILED(hr) )        {            d3d9->Release(); // done with d3d9 object            ::MessageBox(0, "CreateDevice() - FAILED", 0, 0);            return false;        }    }    d3d9->Release(); // done with d3d9 object        return true;}int d3d::EnterMsgLoop( bool (*ptr_display)(float timeDelta) ){    MSG msg;    ::ZeroMemory(&msg, sizeof(MSG));    static float lastTime = (float)timeGetTime();    while(msg.message != WM_QUIT)    {        if(::PeekMessage(&msg, 0, 0, 0, PM_REMOVE))        {            ::TranslateMessage(&msg);            ::DispatchMessage(&msg);        }        else        {                float currTime  = (float)timeGetTime();            float timeDelta = (currTime - lastTime)*0.001f;            ptr_display(timeDelta);            lastTime = currTime;        }    }    return msg.wParam;}

GaussianBlur.h

#ifndef _GAUSSIANBLUR_H_#define _GAUSSIANBLUR_H_class CGaussianBlur{public:CGaussianBlur(){};~CGaussianBlur(){};// 计算高斯权值void CalculateGaussianFilter(int nLength, float rho);float* GetFilter3();float* GetFilter4();float GaussianFilter3[9];private:// 参数高斯权值float GetGaussianDistribution( float x, float y, float rho );// 是否接近0inline bool FEqual(float fValue1, float fValue2 );// 高斯模糊矩阵，提供3x3的和4x4的float GaussianFilter4[16];};#endif

GaussianBlur.cpp

#include "GaussianBlur.h"#include <math.h>#include <float.h>static const int N_FilterLength3 = 3;static const int N_FilterLength4 = 4;bool CGaussianBlur::FEqual(float fValue1, float fValue2 ){if( fabs(fValue1 - fValue2) < FLT_EPSILON ){return true;}else{return false;}}float CGaussianBlur::GetGaussianDistribution( float x, float y, float rho ){float g = 1.0f / sqrt( 2.0f * 3.141592654f * rho * rho );return g * exp( -(x * x + y * y) / (2 * rho * rho) );}void CGaussianBlur::CalculateGaussianFilter(int nLength, float rho){int nSideLength = (int)floor(nLength * 0.5f);int nIndex = 0;float fTotalWeight = 0;for( int j = -nSideLength; j <= nSideLength ; j++ ){for( int i = -nSideLength; i <= nSideLength; i++ ){if( nLength == N_FilterLength3 ){GaussianFilter3[nIndex] = GetGaussianDistribution(i, j, rho);fTotalWeight += GaussianFilter3[nIndex];}else if( nLength == N_FilterLength4 ){GaussianFilter4[nIndex] = GetGaussianDistribution(i, j, rho);fTotalWeight += GaussianFilter4[nIndex];}else{// ERROR Logreturn;}nIndex++;}}// 避免除0if( FEqual( fTotalWeight, 0.0f) ){// ERROR Logreturn;}nIndex = 0;// 归一化一下for( int i = 0; i < nLength; i++ ){for( int j = 0; j < nLength; j++ ){if( nLength == N_FilterLength3 ){GaussianFilter3[nIndex] = GaussianFilter3[nIndex] / fTotalWeight;}else if( nLength == N_FilterLength4 ){GaussianFilter4[nIndex] = GaussianFilter4[nIndex] / fTotalWeight;}nIndex++;}}}float* CGaussianBlur::GetFilter3(){return GaussianFilter3;}float* CGaussianBlur::GetFilter4(){return GaussianFilter4;}

Blur.cpp

#include "d3dUtility.h"#include "GaussianBlur.h"LPDIRECT3DDEVICE9 Device = NULL;LPD3DXEFFECT BlurTexEffect = NULL;LPDIRECT3DVERTEXDECLARATION9 VT_DECL = NULL;LPDIRECT3DVERTEXBUFFER9 VB_Pos = NULL;LPDIRECT3DVERTEXBUFFER9 VB_UV = NULL;LPDIRECT3DINDEXBUFFER9 IB = NULL;D3DXHANDLE WorldViewProjectHandle  = NULL;D3DXHANDLE BlurTechHandle = NULL;CGaussianBlur g_BlurFilter;LPDIRECT3DTEXTURE9 TexObj = NULL;const int Width  = 640;const int Height = 480;// 模糊的顶点数和索引缓存数static const int N_Blur_Vertex_Count = 4;static const int N_Blur_Index_Count = 6;static bool g_bChangeFilter = false;// 顶点声明的数据流索引enum BlurVertexDeclType{eBlurDT_Pos,eBlurDT_UV};//struct tagTextureVertex//{//float x, y, z;//float u, v;////tagTextureVertex(float ax, float ay, float az, float au, float av )//{//x = ax; y = ay; z = az;//u = au; v = av;//}//static const DWORD FVF;//};////const DWORD tagTextureVertex::FVF = D3DFVF_XYZ | D3DFVF_TEX1;bool Setup(){// 顶点声明 D3DVERTEXELEMENT9 Decl_Element [] =  {  {eBlurDT_Pos, 0, D3DDECLTYPE_FLOAT4,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_POSITION, 0}, {eBlurDT_UV, 0, D3DDECLTYPE_FLOAT2,D3DDECLMETHOD_DEFAULT,D3DDECLUSAGE_TEXCOORD, 0}, D3DDECL_END() };if( FAILED(Device->CreateVertexDeclaration(Decl_Element,&VT_DECL) ) ){return false;}/* Device->CreateVertexBuffer( 4 * sizeof( tagTextureVertex ), D3DUSAGE_WRITEONLY, tagTextureVertex::FVF, D3DPOOL_MANAGED,&VB_Pos,0);*/// 顶点位置if( FAILED( Device->CreateVertexBuffer(4 * sizeof(D3DXVECTOR4), D3DUSAGE_WRITEONLY,                                         0, D3DPOOL_MANAGED, &VB_Pos, 0) ) ){return false;}D3DXVECTOR4 *pPos = NULL;if( FAILED (VB_Pos->Lock(0, 0, (void**)&pPos, 0) ) ){return false;}//tagTextureVertex *pPos = (tagTextureVertex*)VertexData;float fHalfWidth = Width * 0.5f;float fHalfHeight = Height * 0.5f;pPos[0] = D3DXVECTOR4(-1.0f, -1.0f, 1.0f,  1.0f);pPos[1] = D3DXVECTOR4(-1.0f, 1.0f, 1.0f, 1.0f);pPos[2] = D3DXVECTOR4(1.0f, 1.0f, 1.0f, 1.0f);pPos[3] = D3DXVECTOR4(1.0f, -1.0f, 1.0f, 1.0f);/*pPos[0] = tagTextureVertex(-1.0f,  -1.0f,1.0f,  0.0f, 1.0f);pPos[1] = tagTextureVertex(-1.0f,  1.0f,  1.0f, 0.0f, 0.0f);pPos[2] = tagTextureVertex( 1.0f,   1.0f,  1.0f,1.0f, 0.0f);pPos[3] = tagTextureVertex( 1.0f,  -1.0f, 1.0f, 1.0f, 1.0f);*/VB_Pos->Unlock();//// 顶点UVif( FAILED( Device->CreateVertexBuffer(4 * sizeof(D3DXVECTOR2), D3DUSAGE_WRITEONLY,                     0, D3DPOOL_MANAGED, &VB_UV, 0) ) ){return false;}D3DXVECTOR2 *UV_Data = NULL;if( FAILED( VB_UV->Lock(0,0,(void**)&UV_Data, 0)) ){return false;}UV_Data[0] = D3DXVECTOR2(0.0f, 1.0f);UV_Data[1] = D3DXVECTOR2(0.0f, 0.0f);UV_Data[2] = D3DXVECTOR2(1.0f, 0.0f);UV_Data[3] = D3DXVECTOR2(1.0f, 1.0f);VB_UV->Unlock();// 索引缓存if( FAILED( Device->CreateIndexBuffer( 6 * sizeof( WORD ), D3DUSAGE_WRITEONLY,                      D3DFMT_INDEX16, D3DPOOL_MANAGED, &IB, 0) ) ){return false;}WORD *IB_Buffer = NULL;if( FAILED( IB->Lock(0,0, (void**)&IB_Buffer, 0) ) ){return false;}IB_Buffer[0] = 0;IB_Buffer[1] = 1;IB_Buffer[2] = 2;IB_Buffer[3] = 0;IB_Buffer[4] = 2;IB_Buffer[5] = 3;IB->Unlock();// 纹理对象设置进去就好了D3DXIMAGE_INFO imageInfo;D3DXCreateTextureFromFileEx(Device,"crate.png",D3DX_DEFAULT,D3DX_DEFAULT,D3DX_DEFAULT,0,D3DFMT_UNKNOWN,D3DPOOL_MANAGED,D3DX_DEFAULT,D3DX_DEFAULT,0,&imageInfo,NULL,&TexObj);/*Device->SetSamplerState(0, D3DSAMP_MAGFILTER, D3DTEXF_LINEAR);Device->SetSamplerState(0, D3DSAMP_MINFILTER, D3DTEXF_LINEAR);Device->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR);*/ID3DXBuffer* errorBuffer = 0;if( FAILED( D3DXCreateEffectFromFile(Device,"blur.fx",0,                // no preprocessor definitions0,                // no ID3DXInclude interfaceD3DXSHADER_DEBUG, // compile flags0,                // don't share parameters&BlurTexEffect,&errorBuffer) ) ){if( errorBuffer ){::MessageBox(0, (char*)errorBuffer->GetBufferPointer(), 0, 0);d3d::Release<ID3DXBuffer*>(errorBuffer);}return false;}// output any error messages//D3DXHANDLE TextureHandle =  BlurTexEffect->GetParameterByName(0, "BlurTex");BlurTexEffect->SetTexture(/*TextureHandle*/"BlurTex", TexObj);if ( TexObj != NULL ){TexObj->Release();TexObj = NULL;}FLOAT texSize[2] = {imageInfo.Width * 1.0f, imageInfo.Height * 1.0f};D3DXHANDLE TextureSizeHandle =  BlurTexEffect->GetParameterByName(0, "TexSize");BlurTexEffect->SetFloatArray(/*TextureSizeHandle*/"TexSize", texSize, 2);D3DXMATRIX W, P;D3DXMatrixIdentity(&W);//Device->SetTransform(D3DTS_WORLD, &W);D3DXVECTOR3 position( 0.0f, 0.0f, -2.0f );D3DXVECTOR3 target(0.0f, 0.0f, 0.0f);D3DXVECTOR3 up(0.0f, 1.0f, 0.0f);D3DXMATRIX V;D3DXMatrixLookAtLH(&V, &position, &target, &up);//Device->SetTransform(D3DTS_VIEW, &V);/*D3DXMatrixLookAtLH(&V, &position, &target, &up);Device->SetTransform(D3DTS_PROJECTION, &V);*/Device->SetRenderState( D3DRS_LIGHTING, FALSE);D3DXMatrixPerspectiveFovLH(&P,D3DX_PI * 0.25f, // 45 - degree(float)Width / (float)Height,1.0f, 1000.0f);//D3DXMatrixOrthoLH(&P, float(Width), float(Height), 1.0f, 1000.0f);//Device->SetTransform(D3DTS_PROJECTION, &P);D3DXMATRIX worldViewProj = W * V * P;D3DXHANDLE MatrixHandle =  BlurTexEffect->GetParameterByName(0, "WorldViewProj");BlurTexEffect->SetMatrix(/*MatrixHandle*/"WorldViewProj", &worldViewProj);if( !g_bChangeFilter ){g_BlurFilter.CalculateGaussianFilter(3, 8.5f);}//float* fArray9 = g_BlurFilter.GetFilter3();D3DXHANDLE filterHandle =  BlurTexEffect->GetParameterByName(0, "ArrayGaussianFilter");BlurTexEffect->SetFloatArray(/*filterHandle*/"ArrayGaussianFilter",                                   g_BlurFilter.GaussianFilter3, 9);BlurTechHandle = BlurTexEffect->GetTechniqueByName("BurTechnique");return true;}void Cleanup(){d3d::Release<LPD3DXEFFECT>(BlurTexEffect);d3d::Release<LPDIRECT3DVERTEXBUFFER9>(VB_Pos);d3d::Release<LPDIRECT3DVERTEXBUFFER9>(VB_UV);d3d::Release<LPDIRECT3DINDEXBUFFER9>(IB);d3d::Release<LPDIRECT3DDEVICE9>(Device);}bool Display(float timeDelta){if( Device == NULL || VB_Pos == NULL || VB_UV == NULL || IB == NULL ){return false;}Device->Clear(0, 0, D3DCLEAR_TARGET | D3DCLEAR_ZBUFFER, 0xffffffff, 1.0f, 0);Device->BeginScene();Device->SetVertexDeclaration(VT_DECL);Device->SetStreamSource(eBlurDT_Pos, VB_Pos, 0, sizeof(D3DXVECTOR4));Device->SetStreamSource(eBlurDT_UV, VB_UV, 0, sizeof(D3DXVECTOR2));Device->SetIndices(IB);/*Device->SetFVF(tagTextureVertex::FVF);Device->SetStreamSource(0, VB_Pos, 0, sizeof( tagTextureVertex ));*///Device->SetTexture(0, TexObj);BlurTexEffect->SetTechnique("BurTechnique"/*BlurTechHandle*/);UINT numPasses = 0;BlurTexEffect->Begin(&numPasses, 0);for( int i = 0; i <  numPasses; i++ ){BlurTexEffect->BeginPass(i);BlurTexEffect->CommitChanges();// 绘制Device->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 4,0, 2);BlurTexEffect->EndPass();}//Device->DrawIndexedPrimitive(D3DPT_TRIANGLELIST, 0, 0, 4,0, 2);BlurTexEffect->End();Device->EndScene();Device->Present(0, 0, 0, 0);return true;}//// WndProc//LRESULT CALLBACK d3d::WndProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam){switch( msg ){case WM_DESTROY:::PostQuitMessage(0);break;case WM_KEYDOWN:if( wParam == VK_ESCAPE )::DestroyWindow(hwnd);break;}return ::DefWindowProc(hwnd, msg, wParam, lParam);}//// WinMain//int WINAPI WinMain(HINSTANCE hinstance,HINSTANCE prevInstance, PSTR cmdLine,int showCmd){if(!d3d::InitD3D(hinstance,Width, Height, true, D3DDEVTYPE_HAL, &Device)){::MessageBox(0, "InitD3D() - FAILED", 0, 0);return 0;}if(!Setup()){::MessageBox(0, "Setup() - FAILED", 0, 0);return 0;}d3d::EnterMsgLoop( Display );Cleanup();Device->Release();return 0;}