实现读取高度图，设置点光源设置材质

#include <windows.h> #include <d3d9.h> #include <d3dx9.h> #include <mmsystem.h> #pragma comment (lib,"winmm.lib") #pragma comment (lib,"d3d9.lib") #pragma comment (lib,"d3dx9.lib") LPDIRECT3D9 g_pD3D; LPDIRECT3DDEVICE9 g_pD3DDevice; #include "Terrain.h" CTerrain *g_pTerrain; #define SAFE_DELETE(p) { if(p) { delete (p); (p)=NULL; } } #define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p); (p)=NULL; } } #define SAFE_RELEASE(p) { if(p) { (p)->Release(); (p)=NULL; } } LRESULT CleanUp() { SAFE_DELETE(g_pTerrain); SAFE_RELEASE(g_pD3DDevice); SAFE_RELEASE(g_pD3D); return S_OK; } LRESULT SetLight(int n,D3DVECTOR *vDir) { return D3D_OK; } LRESULT Update() { float fTimeNow=timeGetTime()/1000.0f; D3DXMATRIX matView,matWorld,matRotX,matRotY,matRotZ,matProj; D3DXMatrixRotationX(&matRotX,D3DX_PI*0.5f*fTimeNow); D3DXMatrixRotationY(&matRotY,D3DX_PI*0.5f*fTimeNow); D3DXMatrixRotationZ(&matRotZ,D3DX_PI*0.5f*fTimeNow); D3DXMatrixMultiply(&matWorld,&matRotX,&matRotY); D3DXMatrixMultiply(&matWorld,&matWorld,&matRotY); D3DXMatrixLookAtLH(&matView,&D3DXVECTOR3(300*sinf(fTimeNow*D3DX_PI*0.1f), 200,300*cosf(fTimeNow*D3DX_PI*0.1f)), &D3DXVECTOR3(0,50,0), &D3DXVECTOR3(0,1,0)); D3DXMatrixPerspectiveFovLH(&matProj,D3DX_PI/4,1.333f,1.0f,5000); g_pD3DDevice->SetTransform(D3DTS_VIEW,&matView); g_pD3DDevice->SetTransform(D3DTS_PROJECTION,&matProj); D3DVECTOR vDir={cosf(fTimeNow),-0.2f,sinf(fTimeNow)}; SetLight(0,&vDir); return D3D_OK; } LRESULT Render() { //顶点数据 g_pD3DDevice->Clear(0,0,D3DCLEAR_TARGET|D3DCLEAR_ZBUFFER,0x00,1.0f,0); //清除背景 g_pD3DDevice->BeginScene(); //开始绘制 //绘制原始单元 Update(); g_pTerrain->Render(); g_pD3DDevice->EndScene(); //结束绘制 g_pD3DDevice->Present(0,0,0,0); //翻屏 return D3D_OK; } //初始化函数，创建Direct3D和设备对象 LRESULT InitD3D(HWND hwnd) { g_pD3D= Direct3DCreate9(D3D_SDK_VERSION); //创建Direct3D9对象 D3DPRESENT_PARAMETERS d3dpp; //设备翻屏参数 memset(&d3dpp,0,sizeof(d3dpp)); //初始化 d3dpp.BackBufferCount=1; //后备缓冲区数量 d3dpp.SwapEffect= D3DSWAPEFFECT_DISCARD; //交换模式 d3dpp.hDeviceWindow=hwnd; d3dpp.Windowed=TRUE; //使用窗口模式 d3dpp.EnableAutoDepthStencil=TRUE; d3dpp.AutoDepthStencilFormat=D3DFMT_D16; HRESULT ret= g_pD3D->CreateDevice(D3DADAPTER_DEFAULT, //创建默认物理设备相关的Direct3DDevice对象 D3DDEVTYPE_HAL, //使用硬件抽象层 hwnd, //显示窗口 D3DCREATE_SOFTWARE_VERTEXPROCESSING, //软件处理顶点 &d3dpp, //设备相关参数的描述 &g_pD3DDevice); //要保存对象地址的指针的地址 if(ret!=D3D_OK) { MessageBox(hwnd,"创建创建Direct3DDeviece对象失败！","创建Direct3DDeviece!", MB_OK|MB_ICONERROR); } //采样方式 g_pD3DDevice->SetSamplerState(0, D3DSAMP_MAGFILTER , D3DTEXF_ANISOTROPIC); g_pD3DDevice->SetSamplerState(0, D3DSAMP_MINFILTER , D3DTEXF_ANISOTROPIC); g_pD3DDevice->SetSamplerState(0, D3DSAMP_MIPFILTER, D3DTEXF_LINEAR); g_pD3DDevice->SetRenderState(D3DRS_LIGHTING,TRUE); g_pTerrain=new CTerrain(g_pD3DDevice,"Terrain_256.bmp","grass.jpg",5.0f); return D3D_OK; } //----------------------------------------------------------------------------- // Name: MsgProc() // Desc: The window's message handler //----------------------------------------------------------------------------- LRESULT WINAPI MsgProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam ) { switch( msg ) { case WM_DESTROY: PostQuitMessage( 0 ); return 0; case WM_KEYDOWN: switch(wParam) { case VK_ESCAPE: PostQuitMessage(0); return 0; case 'W': g_pD3DDevice->SetRenderState(D3DRS_FILLMODE,D3DFILL_WIREFRAME); return 0; case 'S': g_pD3DDevice->SetRenderState(D3DRS_FILLMODE,D3DFILL_SOLID); return 0; } break; } return DefWindowProc( hWnd, msg, wParam, lParam ); } //----------------------------------------------------------------------------- // Name: WinMain() // Desc: The application's entry point //----------------------------------------------------------------------------- INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE, LPSTR, INT ) { // Register the window class WNDCLASSEX wc = { sizeof(WNDCLASSEX), CS_CLASSDC, MsgProc, 0L, 0L, GetModuleHandle(NULL), NULL, NULL, NULL, NULL, "D3D Tutorial", NULL }; RegisterClassEx( &wc ); // Create the application's window HWND hWnd = CreateWindow( "D3D Tutorial", "D3D DEMOS", WS_OVERLAPPED|WS_SYSMENU|WS_MINIMIZEBOX, CW_USEDEFAULT, CW_USEDEFAULT, 640, 480, GetDesktopWindow(), NULL, wc.hInstance, NULL ); // Initialize Direct3D if( SUCCEEDED( InitD3D( hWnd ) ) ) { // Show the window ShowWindow( hWnd, SW_SHOWDEFAULT ); UpdateWindow( hWnd ); // Enter the message loop MSG msg; memset(&msg,0,sizeof(msg)); while(msg.message!=WM_QUIT) { if( PeekMessage( &msg, NULL, 0, 0,PM_REMOVE ) ) { TranslateMessage( &msg ); DispatchMessage( &msg ); } else { Sleep(1); Render(); } } } CleanUp(); UnregisterClass(wc.lpszClassName, wc.hInstance ); return 0; }