全屏运动模糊后处理渲染(基于DirectX8.1实现)

//----------------------------------------------------------------------------- // File: Matrices.cpp // 各种光源的着色器模拟 // ajohn // Copyright (c) 2000 Microsoft Corporation. All rights reserved. //----------------------------------------------------------------------------- #include <d3dx8.h> #include <mmsystem.h> #define KEYDOWN(vk_code) ((GetAsyncKeyState(vk_code)& 0x8000)?1:0) #define KEYUP(vk_code) ((GetAsyncKeyState(vk_code)& 0x8000)?0:1) #define VK_D 0x44 #define VK_S 0x53 #define VK_A 0x41 //----------------------------------------------------------------------------- // Global variables //----------------------------------------------------------------------------- LPDIRECT3D8 g_pD3D = NULL; // Used to create the D3DDevice LPDIRECT3DDEVICE8 g_pd3dDevice = NULL; // Our rendering device HWND hWnd = NULL; LPDIRECT3DVERTEXBUFFER8 g_pVB = NULL; //顶点缓冲，索引顶点缓冲 ，属性缓冲 LPDIRECT3DINDEXBUFFER8 g_pIB = NULL; LPD3DXMESH g_pMesh = NULL; //mesh D3DMATERIAL8* g_pMeshMaterials = NULL; //材质数组 DWORD g_NumMaterials; //材质数量 D3DXMATRIX matProj; D3DXMATRIX matWorld; D3DXMATRIX matView; //渲染到纹理的纹理 LPDIRECT3DTEXTURE8 g_pDisplayTexture; //纹理的颜色表面 LPDIRECT3DSURFACE8 g_pDisplayTextureSurface; //渲染文理的Zbuff LPDIRECT3DSURFACE8 g_pDisplayZSurface; //后缓冲的表面 LPDIRECT3DSURFACE8 g_pBackBuffer; //后缓冲的zbuff LPDIRECT3DSURFACE8 g_pZBuffer; //顶点buff用来贴渲染纹理 LPDIRECT3DVERTEXBUFFER8 g_pDisplayVertexBuffer; //翻页信息参数 D3DPRESENT_PARAMETERS g_PresentParameters; //设备创建参数 D3DDEVICE_CREATION_PARAMETERS g_CreationParameters; DWORD g_pVS = 1; DWORD g_pVSDirLight = NULL; //着色器 DWORD g_pVSPointLight = NULL; DWORD g_pVSSpotLight = NULL; DWORD choise = NULL; //DWORD g_pPixelShader = NULL; // A structure for our custom vertex type struct CUSTOMVERTEX { FLOAT x, y, z; // The untransformed, 3D position for the vertex FLOAT nx,ny,nz; DWORD color; }; struct DISPLAY_VERTEX { float x, y, z, rhw; DWORD color; float u, v; }; DWORD Declaration[] = { D3DVSD_STREAM(0), D3DVSD_REG(D3DVSDE_POSITION, D3DVSDT_FLOAT3), D3DVSD_REG(D3DVSDE_NORMAL, D3DVSDT_FLOAT3), D3DVSD_REG(D3DVSDE_DIFFUSE, D3DVSDT_D3DCOLOR), D3DVSD_END() }; // Our custom FVF, which describes our custom vertex structure #define D3DFVF_CUSTOMVERTEX (D3DFVF_XYZ|D3DFVF_NORMAL|D3DFVF_DIFFUSE) #define D3DFVF_DISPLAYVERTEX (D3DFVF_XYZRHW | D3DFVF_TEX1 | D3DFVF_DIFFUSE) HRESULT LoadMesh() { LPD3DXBUFFER pD3DXMtrlBuffer; LPD3DXMESH pOriginalMesh; if(FAILED(D3DXLoadMeshFromX("skullocc.x",D3DXMESH_MANAGED,g_pd3dDevice,NULL,&pD3DXMtrlBuffer,&g_NumMaterials,&pOriginalMesh))) { MessageBox(0,"载入x模型出错","error",MB_OK); return FALSE; } D3DXMATERIAL* d3dxMaterials = (D3DXMATERIAL*)pD3DXMtrlBuffer->GetBufferPointer(); g_pMeshMaterials = new D3DMATERIAL8[g_NumMaterials]; for(DWORD MatCount = 0;MatCount<g_NumMaterials;MatCount++) { g_pMeshMaterials[MatCount]=d3dxMaterials[MatCount].MatD3D; } pD3DXMtrlBuffer->Release(); DWORD MeshFVF = pOriginalMesh->GetFVF(); if(MeshFVF!=D3DFVF_CUSTOMVERTEX)//如果顶点格式不相符合 { if(FAILED(pOriginalMesh->CloneMeshFVF(D3DXMESH_MANAGED,D3DFVF_CUSTOMVERTEX,g_pd3dDevice,&g_pMesh))) { MessageBox(0,"克隆FVF出错","Error",MB_OK); } pOriginalMesh->Release(); pOriginalMesh = NULL; } else g_pMesh = pOriginalMesh; return S_OK; } BOOL PostInitialize() { D3DDISPLAYMODE CurrentMode; if(SUCCEEDED(g_pD3D->GetAdapterDisplayMode(D3DADAPTER_DEFAULT,&CurrentMode))) { ZeroMemory((void*)&g_PresentParameters,sizeof(D3DPRESENT_PARAMETERS)); g_PresentParameters.Windowed = TRUE; g_PresentParameters.SwapEffect = D3DSWAPEFFECT_COPY; g_PresentParameters.BackBufferFormat = CurrentMode.Format; g_PresentParameters.EnableAutoDepthStencil = TRUE; g_PresentParameters.AutoDepthStencilFormat = D3DFMT_D24S8; g_CreationParameters.AdapterOrdinal = D3DADAPTER_DEFAULT; g_CreationParameters.DeviceType = D3DDEVTYPE_HAL; g_CreationParameters.hFocusWindow = hWnd; D3DCAPS8 Caps; g_pD3D->GetDeviceCaps(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, &Caps); if (Caps.VertexShaderVersion >= D3DVS_VERSION(1,1)) g_CreationParameters.BehaviorFlags = D3DCREATE_HARDWARE_VERTEXPROCESSING; else g_CreationParameters.BehaviorFlags = D3DCREATE_SOFTWARE_VERTEXPROCESSING; if(FAILED(g_pD3D->CreateDevice( g_CreationParameters.AdapterOrdinal, g_CreationParameters.DeviceType, g_CreationParameters.hFocusWindow, g_CreationParameters.BehaviorFlags, &g_PresentParameters, &g_pd3dDevice))) return FALSE; } RECT WindowRect; //当前屏幕 GetClientRect(hWnd, &WindowRect); D3DXMatrixPerspectiveFovLH(&matProj, D3DX_PI / 4, 1.0, 1.0f, 1000.0f); //世界矩阵归一化 D3DXMatrixIdentity(&matWorld); //创建渲染目标纹理 if (FAILED(D3DXCreateTexture(g_pd3dDevice, 1024, 1024, 1, D3DUSAGE_RENDERTARGET, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &g_pDisplayTexture))) return E_FAIL; //创建渲染目标纹理深度 if (FAILED(g_pd3dDevice->CreateDepthStencilSurface(1024, 1024, D3DFMT_D24S8, D3DMULTISAMPLE_NONE, &g_pDisplayZSurface))) return E_FAIL; //得到后缓冲指针 if (FAILED(g_pd3dDevice->GetRenderTarget(&g_pBackBuffer))) return E_FAIL; //得到深度缓冲指针 if (FAILED(g_pd3dDevice->GetDepthStencilSurface(&g_pZBuffer))) return E_FAIL; //得到渲染目标纹理的最高页面为颜色缓冲区 if (FAILED(g_pDisplayTexture->GetSurfaceLevel(0, &g_pDisplayTextureSurface))) return E_FAIL; return true; } HRESULT ExtractBuffers() { g_pMesh->GetVertexBuffer(&g_pVB); g_pMesh->GetIndexBuffer(&g_pIB); CUSTOMVERTEX* pMeshVertices; short* pIndices; DWORD* pAttribs; g_pVB->Lock(0,g_pMesh->GetNumVertices()*sizeof(CUSTOMVERTEX),(BYTE**)&pMeshVertices,0); g_pIB->Lock(0,3*g_pMesh->GetNumFaces()*sizeof(short),(BYTE**)&pIndices,D3DLOCK_READONLY); g_pMesh->LockAttributeBuffer(D3DLOCK_READONLY,&pAttribs); for(DWORD face = 0;face<g_pMesh->GetNumFaces();face++) { D3DXCOLOR diffuse = RGB(255,255,255); pMeshVertices[pIndices[face*3+0]].color = diffuse; float a = pMeshVertices[pIndices[face*3+0]].nx; pMeshVertices[pIndices[face*3+1]].color = diffuse; pMeshVertices[pIndices[face*3+2]].color = diffuse; } g_pVB->Unlock(); g_pIB->Unlock(); g_pMesh->UnlockAttributeBuffer(); if(FAILED(D3DXComputeNormals(g_pMesh))) { MessageBox(0,"计算法线出错","error",MB_OK); return FALSE; } g_pd3dDevice->SetStreamSource(0,g_pVB,sizeof(CUSTOMVERTEX)); g_pd3dDevice->SetIndices(g_pIB,0); //载入卡通纹理 return S_OK; } HRESULT CreateShalders() { ID3DXBuffer* pShaderBuffer; ID3DXBuffer* pShaderErrors; //编译shader.vs 如果编译通过，指令保存在shaderbuffer里面 if (FAILED(D3DXAssembleShaderFromFile("directionlight.vs", 0, NULL, &pShaderBuffer, &pShaderErrors))) { MessageBox(0,"着色器编译出错","error",MB_OK); return E_FAIL; } //创建着色器，包含顶点申明 if (FAILED(g_pd3dDevice->CreateVertexShader(Declaration, (DWORD *)pShaderBuffer->GetBufferPointer(), &g_pVSDirLight, 0))) { MessageBox(0,"着色器创建出错","error",MB_OK); return E_FAIL; } //释放顶点着色器指令 pShaderBuffer->Release(); if (FAILED(D3DXAssembleShaderFromFile("PointLight.vs", 0, NULL, &pShaderBuffer, &pShaderErrors))) { MessageBox(0,"着色器编译出错","error",MB_OK); return E_FAIL; }