phong+ Shadowmap+Camera+LensFlare

/* 版本信息: 作 者: 郭云 完成日期: 2011:4:5 15:41 文件名称: d:\My Documents\Direct3D_GGYY\02_第二章 Direct3D程序设计基础\phong 光照 + Shadowmap\Main.cpp 摘 要: 生成硬阴影.注意:在生成ShadowMap是要整个场景去渲染而不是只阴影物体. */ #include "BaseCommen.h" #include "Camera/BaseCamera.h" #include "LensFlare/LensFlare.h" #define ShadowMap_SIZE (512) //----------------------------------------------------------------------------- // Desc: 全局变量 //----------------------------------------------------------------------------- LPDIRECT3D9 g_pD3D = NULL; //Direct3D对象 LPDIRECT3DDEVICE9 g_pd3dDevice = NULL; //Direct3D设备对象 LPD3DXMESH g_pMeshTiny = NULL; //网格模型 LPDIRECT3DTEXTURE9 g_pTextureTiny = NULL; //纹理 LPDIRECT3DVERTEXBUFFER9 g_pVBCylinder = NULL; //圆柱体 LPDIRECT3DVERTEXBUFFER9 g_pVBFloor = NULL; //地板 LPDIRECT3DTEXTURE9 g_pTextureFloor = NULL; //地板纹理 LPDIRECT3DTEXTURE9 g_pShadowMap = NULL; // 阴影纹理 LPDIRECT3DSURFACE9 g_pDSShadow = NULL; // 深度缓存区表面 LPD3DXEFFECT g_pEffect = NULL; //效果 D3DXMATRIX g_LightViewMat; //灯光处View矩阵 D3DXMATRIX g_CameraViewMat; //摄像机处View矩阵 D3DXMATRIX g_ProjMat; //投影矩阵 D3DXMATRIX g_TinyInitWorld; //Tiny初始化矩阵 float g_TinyRotateY; //旋转角 float g_TinyRadius = 0.0f; //Tiny外接求半径 D3DXMATRIX g_FloorInitWorld; //地板初始矩阵 D3DXMATRIX g_CylinderInitWorld; //圆柱初始矩阵 D3DXVECTOR3 g_LightPos; //聚光灯位置 D3DXVECTOR3 g_LightDir; //聚光灯方向 float g_Theta = 0.0f; //内外锥角 D3DXVECTOR3 g_CameraPos; //Camera位置 //Materail D3DXVECTOR4 g_MaterailAmbient; D3DXVECTOR4 g_MaterailDiffuse; D3DXVECTOR4 g_MaterailSpecular; //light D3DXVECTOR4 g_lightAmbient; D3DXVECTOR4 g_lightDiffuse; D3DXVECTOR4 g_lightSpecular; CGeneralCamera g_ModelCamera; CLensFlare g_LensFlare; //圆柱顶点格式 struct CYLINDERVERTEX { D3DXVECTOR3 pos; DWORD color; }; #define CYLINDERFVF (D3DFVF_XYZ | D3DFVF_DIFFUSE) //地板顶点格式 struct FLOORVERTEX { D3DXVECTOR3 pos; D3DXVECTOR3 nor; D3DXVECTOR2 tex; }; #define FLOORFVF (D3DFVF_XYZ | D3DFVF_NORMAL | D3DFVF_TEX1) //加载Tiny HRESULT LoadMesh( IDirect3DDevice9* g_pd3dDevice, char* strFileName, ID3DXMesh** ppMesh ) { ID3DXMesh* pMesh = NULL; //从文件加载网格模型 ::D3DXLoadMeshFromX(strFileName, D3DXMESH_MANAGED, g_pd3dDevice, NULL, NULL, NULL, NULL, &pMesh); //确保网格模型顶点包含法线信息,以满足光照计算的需要 if( !(pMesh->GetFVF() & D3DFVF_NORMAL) ) { ID3DXMesh* pTempMesh; pMesh->CloneMeshFVF( pMesh->GetOptions(), pMesh->GetFVF() | D3DFVF_NORMAL, g_pd3dDevice, &pTempMesh ); D3DXComputeNormals( pTempMesh, NULL ); //计算法线 if(NULL != pMesh) { pMesh->Release(); pMesh = NULL; } pMesh = pTempMesh; } //对网格模型进行优化,以提高程序运行性能 DWORD *rgdwAdjacency = NULL; if(NULL == (rgdwAdjacency = new DWORD[pMesh->GetNumFaces() * 3])) { return E_FAIL; } pMesh->GenerateAdjacency(1e-6f,rgdwAdjacency); pMesh->OptimizeInplace(D3DXMESHOPT_VERTEXCACHE, rgdwAdjacency, NULL, NULL, NULL); //优化 if(NULL != rgdwAdjacency) { delete []rgdwAdjacency; rgdwAdjacency = NULL; } *ppMesh = pMesh; return S_OK; } //初始化Tiny HRESULT InitMesh() { if(E_FAIL == LoadMesh(g_pd3dDevice, "Media\\tiny\\tiny.x", &g_pMeshTiny)) { MessageBox(GetForegroundWindow(), "tiny.x isn't loaded!" , "tiny", MB_OK); abort(); } //计算中心球的半径和中心点 D3DXVECTOR3* pData; D3DXVECTOR3 vCenter; g_pMeshTiny->LockVertexBuffer( 0, (LPVOID*) &pData ); ::D3DXComputeBoundingSphere( pData, g_pMeshTiny->GetNumVertices(), D3DXGetFVFVertexSize( g_pMeshTiny->GetFVF() ), &vCenter, &g_TinyRadius); g_pMeshTiny->UnlockVertexBuffer(); g_TinyRadius *= 0.02; ::D3DXMatrixIdentity(&g_TinyInitWorld); ::D3DXMatrixTranslation(&g_TinyInitWorld, -vCenter.x, -vCenter.y, -vCenter.z); D3DXMATRIX matScale; D3DXMatrixIdentity( &matScale); D3DXMatrixScaling(&matScale,0.02,0.02, 0.02); D3DXMATRIX matRotateX; D3DXMatrixIdentity( &matRotateX); D3DXMatrixRotationX(&matRotateX,-D3DX_PI*0.5); D3DXMATRIX matRotateZ; D3DXMatrixIdentity( &matRotateZ); D3DXMatrixRotationZ(&matRotateZ,D3DX_PI); g_TinyInitWorld = g_TinyInitWorld * matScale * matRotateZ * matRotateX; //创建网格模型纹理 D3DXCreateTextureFromFileEx( g_pd3dDevice, "Media\\tiny\\tiny_skin.dds", D3DX_DEFAULT, D3DX_DEFAULT, D3DX_DEFAULT, 0, D3DFMT_UNKNOWN, D3DPOOL_MANAGED, D3DX_DEFAULT, D3DX_DEFAULT, 0, NULL, NULL, &g_pTextureTiny ); return S_OK; } void UpdateCamera() { g_CameraPos = *g_ModelCamera.GetEyePos(); g_CameraViewMat = *g_ModelCamera.GetViewMatrix(); g_ProjMat = *g_ModelCamera.GetProjMatrix(); D3DXMATRIX MatCameraViewProj; MatCameraViewProj = g_CameraViewMat * g_ProjMat; g_pEffect->SetMatrix("matCameraViewProj", &MatCameraViewProj); //Camera D3DXVECTOR4 v4(g_CameraPos, 1.0); g_pEffect->SetVector("vCameraPos", &v4); g_LensFlare.SetCameraPos(g_CameraPos); g_LensFlare.SetCameraLookAt(D3DXVECTOR3(0.0, 0.0, 0.0)); } void UpdateEffectStatic() { //LightColor g_pEffect->SetVector("lightAmbient", &g_lightAmbient); g_pEffect->SetVector("lightDiffuse", &g_lightDiffuse); g_pEffect->SetVector("lightSpecular", &g_lightSpecular); g_pEffect->SetFloat("fCosTheta", cosf(g_Theta)); //material g_pEffect->SetVector("materialAmbient", &g_MaterailAmbient); g_pEffect->SetVector("materialDiffuse", &g_MaterailDiffuse); g_pEffect->SetVector("materialSpecular",&g_MaterailSpecular); } HRESULT InitD3D( HWND hWnd ) { //创建Direct3D对象, 该对象用于创建Direct3D设备对象 if( NULL == ( g_pD3D = Direct3DCreate9( D3D_SDK_VERSION ) ) ) return E_FAIL; //设置D3DPRESENT_PARAMETERS结构, 准备创建Direct3D设备对象 D3DPRESENT_PARAMETERS d3dpp; ZeroMemory( &d3dpp, sizeof(d3dpp) ); d3dpp.Windowed = TRUE; d3dpp.SwapEffect = D3DSWAPEFFECT_COPY; //D3DSWAPEFFECT_DISCARD; d3dpp.BackBufferWidth = ShadowMap_SIZE; d3dpp.BackBufferHeight = ShadowMap_SIZE; d3dpp.BackBufferFormat = D3DFMT_A8R8G8B8; //D3DFMT_UNKNOWN; d3dpp.EnableAutoDepthStencil = TRUE; //深度 d3dpp.AutoDepthStencilFormat = D3DFMT_D24X8; d3dpp.Flags = D3DPRESENTFLAG_LOCKABLE_BACKBUFFER; //创建Direct3D设备对象 if( FAILED( g_pD3D->CreateDevice( D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, hWnd, D3DCREATE_SOFTWARE_VERTEXPROCESSING, &d3dpp, &g_pd3dDevice ) ) ) { MessageBox(GetForegroundWindow(), "Fialed to CreateDevice!" , "CreateDevice", MB_OK); abort(); } //创建矩阵 ::D3DXMatrixIdentity(&g_CameraViewMat); ::D3DXMatrixIdentity(&g_ProjMat); //Camera g_CameraPos = D3DXVECTOR3(0.0, 8.0, -20.0); D3DXVECTOR3 vEye = g_CameraPos; D3DXVECTOR3 vAt(0.0, -2.0, 0.0); D3DXVECTOR3 vUp(0.0, 1.0, 0.0); // ::D3DXMatrixLookAtLH(&g_CameraViewMat, &vEye, &vAt, &vUp); // ::D3DXMatrixPerspectiveFovLH(&g_ProjMat, D3DX_PI * 0.5, 1.0, 1.0, 100.0); g_ModelCamera.SetViewParam(&vEye, &vAt, &vUp); g_ModelCamera.SetProjParam(D3DX_PI * 0.5, 1.0, 1.0, 100.0); g_ModelCamera.UpdateViewMatrix(); g_ModelCamera.UpdateProjMatrix(); //设置视口大小 D3DVIEWPORT9 vp; vp.X = 0; vp.Y = 0; vp.Width = ShadowMap_SIZE; vp.Height = ShadowMap_SIZE; vp.MinZ = 0.0f; vp.MaxZ = 1.0f; g_pd3dDevice->SetViewport(&vp); //加载模型 InitMesh(); //加载Floor纹理 if(FAILED(::D3DXCreateTextureFromFile(g_pd3dDevice, "Media\\Desert.jpg", &g_pTextureFloor))) { MessageBox(GetForegroundWindow(), "TextureFloor isn't loaded!" , "D3DXCreateTextureFromFile", MB_OK); abort(); } D3DXMatrixIdentity(&g_FloorInitWorld); //初始地板矩阵 D3DXMatrixIdentity(&g_CylinderInitWorld); //初始圆