旋转式正方体和正四面体.doc

一、设计目的设计一个程序使得运行后生成一个旋转的正方体和一个可旋转的正四面体，旋转过程中伴随着颜色的变化。二、算法描述运用多个glVertex3f函数赋予颜色，以及运用多个选择语句，实现消息转变。根据题目要求，分别选择正方体和正四面体，分别作左上右下旋转和水平逆时针（从上方看）旋转。正方体的六个面采用不同的颜色，正四面体的三个可见面则采用多色分布镶嵌。程序要运用多个函数有：GLvoid ReSizeGLScene(GLsizei width, GLsizei height)（调整和初始化GL窗口）；int InitGL(GLvoid)（初始化）；int DrawGLScene(GLvoid)（GL场景绘制）；GLvoid KillGLWindow(GLvoid)（选择正确方式选择窗口或关闭窗口）；AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);（调整窗口大小来创建合适的窗口）；int WINAPI WinMain(HINSTANCEhInstance, HINSTANCEhPrevInstance,LPSTRlpCmdLine, intnCmdShow)（主函数）三、程序代码#include /需要用到的各个头文件#include #include #include HDChDC=NULL;HGLRChRC=NULL;HWNDhWnd=NULL;HINSTANCEhInstance;boolkeys256;boolactive=TRUE;boolfullscreen=TRUE;GLfloatrtri;GLfloatrquad;LRESULTCALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);GLvoid ReSizeGLScene(GLsizei width, GLsizei height)/调整和初始化GL窗口if (height=0)height=1;glViewport(0,0,width,height);glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);glMatrixMode(GL_MODELVIEW);glLoadIdentity();int InitGL(GLvoid)/初始化glShadeModel(GL_SMOOTH);glClearColor(0.0f, 0.0f, 0.0f, 0.5f);glClearDepth(1.0f);glEnable(GL_DEPTH_TEST);glDepthFunc(GL_LEQUAL);glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);return TRUE;int DrawGLScene(GLvoid)/ GL场景绘制glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);glLoadIdentity();glTranslatef(-1.5f,0.0f,-6.0f);glRotatef(rtri,0.0f,1.0f,0.0f);glBegin(GL_TRIANGLES);glColor3f(1.0f,0.0f,0.0f);glVertex3f( 0.0f, 1.0f, 0.0f);glColor3f(0.0f,1.0f,0.0f);glVertex3f(-1.0f,-1.0f, 1.0f);glColor3f(0.0f,0.0f,1.0f);glVertex3f( 1.0f,-1.0f, 1.0f);glColor3f(1.0f,0.0f,0.0f);glVertex3f( 0.0f, 1.0f, 0.0f);glColor3f(0.0f,0.0f,1.0f);glVertex3f( 1.0f,-1.0f, 1.0f);glColor3f(0.0f,1.0f,0.0f);glVertex3f( 1.0f,-1.0f, -1.0f);glColor3f(1.0f,0.0f,0.0f);glVertex3f( 0.0f, 1.0f, 0.0f);glColor3f(0.0f,1.0f,0.0f);glVertex3f( 1.0f,-1.0f, -1.0f);glColor3f(0.0f,0.0f,1.0f);glVertex3f(-1.0f,-1.0f, -1.0f);glColor3f(1.0f,0.0f,0.0f);glVertex3f( 0.0f, 1.0f, 0.0f);glColor3f(0.0f,0.0f,1.0f);glVertex3f(-1.0f,-1.0f,-1.0f);glColor3f(0.0f,1.0f,0.0f);glVertex3f(-1.0f,-1.0f, 1.0f);glEnd();glLoadIdentity();glTranslatef(1.5f,0.0f,-7.0f);glRotatef(rquad,1.0f,1.0f,1.0f);glBegin(GL_QUADS);glColor3f(0.0f,1.0f,0.0f);glVertex3f( 1.0f, 1.0f,-1.0f);glVertex3f(-1.0f, 1.0f,-1.0f);glVertex3f(-1.0f, 1.0f, 1.0f);glVertex3f( 1.0f, 1.0f, 1.0f);glColor3f(1.0f,0.5f,0.0f);glVertex3f( 1.0f,-1.0f, 1.0f);glVertex3f(-1.0f,-1.0f, 1.0f);glVertex3f(-1.0f,-1.0f,-1.0f);glVertex3f( 1.0f,-1.0f,-1.0f);glColor3f(1.0f,0.0f,0.0f);glVertex3f( 1.0f, 1.0f, 1.0f);glVertex3f(-1.0f, 1.0f, 1.0f);glVertex3f(-1.0f,-1.0f, 1.0f);glVertex3f( 1.0f,-1.0f, 1.0f);glColor3f(1.0f,1.0f,0.0f);glVertex3f( 1.0f,-1.0f,-1.0f);glVertex3f(-1.0f,-1.0f,-1.0f);glVertex3f(-1.0f, 1.0f,-1.0f);glVertex3f( 1.0f, 1.0f,-1.0f);glColor3f(0.0f,0.0f,1.0f);glVertex3f(-1.0f, 1.0f, 1.0f);glVertex3f(-1.0f, 1.0f,-1.0f);glVertex3f(-1.0f,-1.0f,-1.0f);glVertex3f(-1.0f,-1.0f, 1.0f);glColor3f(1.0f,0.0f,1.0f);glVertex3f( 1.0f, 1.0f,-1.0f);glVertex3f( 1.0f, 1.0f, 1.0f);glVertex3f( 1.0f,-1.0f, 1.0f);glVertex3f( 1.0f,-1.0f,-1.0f);glEnd();rtri+=0.2f;rquad-=0.15f;return TRUE;GLvoid KillGLWindow(GLvoid)/选择正确方式选择窗口或关闭窗口if (fullscreen)ChangeDisplaySettings(NULL,0);ShowCursor(TRUE);if (hRC)if (!wglMakeCurrent(NULL,NULL)MessageBox(NULL,Release Of DC And RC Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);if (!wglDeleteContext(hRC)MessageBox(NULL,Release Rendering Context Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hRC=NULL;if (hDC & !ReleaseDC(hWnd,hDC)MessageBox(NULL,Release Device Context Failed.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hDC=NULL;if (hWnd & !DestroyWindow(hWnd)MessageBox(NULL,Could Not Release hWnd.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hWnd=NULL;if (!UnregisterClass(OpenGL,hInstance)MessageBox(NULL,Could Not Unregister Class.,SHUTDOWN ERROR,MB_OK | MB_ICONINFORMATION);hInstance=NULL;BOOL CreateGLWindow(char* title, int width, int height, int bits, bool fullscreenflag)/创建绘图窗口GLuintPixelFormat;WNDCLASSwc;DWORDdwExStyle;DWORDdwStyle;RECTWindowRect;WindowRect.left=(long)0;WindowRect.right=(long)width;WindowRect.top=(long)0;WindowRect.bottom=(long)height;fullscreen=fullscreenflag;hInstance= GetModuleHandle(NULL);wc.style= CS_HREDRAW | CS_VREDRAW | CS_OWNDC;wc.lpfnWndProc= (WNDPROC) WndProc;wc.cbClsExtra= 0;wc.cbWndExtra= 0;wc.hInstance= hInstance;wc.hIcon= LoadIcon(NULL, IDI_WINLOGO);wc.hCursor= LoadCursor(NULL, IDC_ARROW);wc.hbrBackground= NULL;wc.lpszMenuName= NULL;wc.lpszClassName= OpenGL;if (!RegisterClass(&wc)MessageBox(NULL,Failed To Register The Window Class.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;if (fullscreen)DEVMODE dmScreenSettings;memset(&dmScreenSettings,0,sizeof(dmScreenSettings);dmScreenSettings.dmSize=sizeof(dmScreenSettings);dmScreenSettings.dmPelsWidth= width;dmScreenSettings.dmPelsHeight= height;dmScreenSettings.dmBitsPerPel= bits;dmScreenSettings.dmFields=DM_BITSPERPEL|DM_PELSWIDTH|DM_PELSHEIGHT;if (ChangeDisplaySettings(&dmScreenSettings,CDS_FULLSCREEN)!=DISP_CHANGE_SUCCESSFUL)if (MessageBox(NULL,The Requested Fullscreen Mode Is Not Supported BynYour Video Card. Use Windowed Mode Instead?,NeHe GL,MB_YESNO|MB_ICONEXCLAMATION)=IDYES)fullscreen=FALSE;elseMessageBox(NULL,Program Will Now Close.,ERROR,MB_OK|MB_ICONSTOP);return FALSE;if (fullscreen)dwExStyle=WS_EX_APPWINDOW;dwStyle=WS_POPUP;ShowCursor(FALSE);elsedwExStyle=WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;dwStyle=WS_OVERLAPPEDWINDOW;AdjustWindowRectEx(&WindowRect, dwStyle, FALSE, dwExStyle);/调整窗口大小来创建合适的窗口if (!(hWnd=CreateWindowEx(dwExStyle,OpenGL,title,dwStyle |WS_CLIPSIBLINGS |WS_CLIPCHILDREN,0, 0,WindowRect.right-WindowRect.left,WindowRect.bottom-WindowRect.top,NULL,NULL,hInstance,NULL)KillGLWindow();MessageBox(NULL,Window Creation Error.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;staticPIXELFORMATDESCRIPTOR pfd=sizeof(PIXELFORMATDESCRIPTOR),1,PFD_DRAW_TO_WINDOW |PFD_SUPPORT_OPENGL |PFD_DOUBLEBUFFER,PFD_TYPE_RGBA,bits,0, 0, 0, 0, 0, 0,0,0,0,0, 0, 0, 0,16, 0,0,PFD_MAIN_PLANE,0,0, 0, 0;if (!(hDC=GetDC(hWnd)KillGLWindow();MessageBox(NULL,Cant Create A GL Device Context.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;if (!(PixelFormat=ChoosePixelFormat(hDC,&pfd)KillGLWindow();MessageBox(NULL,Cant Find A Suitable PixelFormat.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;if(!SetPixelFormat(hDC,PixelFormat,&pfd)KillGLWindow();MessageBox(NULL,Cant Set The PixelFormat.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;if (!(hRC=wglCreateContext(hDC)KillGLWindow();MessageBox(NULL,Cant Create A GL Rendering Context.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;if(!wglMakeCurrent(hDC,hRC)KillGLWindow();MessageBox(NULL,Cant Activate The GL Rendering Context.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;ShowWindow(hWnd,SW_SHOW);SetForegroundWindow(hWnd);SetFocus(hWnd);ReSizeGLScene(width, height);if (!InitGL()KillGLWindow();MessageBox(NULL,Initialization Failed.,ERROR,MB_OK|MB_ICONEXCLAMATION);return FALSE;return TRUE;LRESULT CALLBACK WndProc(HWNDhWnd,UINTuMsg,WPARAMwParam,LPARAMlParam)switch (uMsg)case WM_ACTIVATE:/监视窗口激活消息if (LOWORD(wParam) != WA_INACTIVE) & !(BOOL)HIWORD(wParam)active=TRUE;elseactive=FALSE;return 0;case WM_SYSCOMMAND:switch (wParam)case SC_SCREENSAVE:case SC_MONITORPOWER:return 0;break;case WM_CLOSE:PostQuitMessage(0);return 0;case WM_KEYDOWN:keyswParam = TRUE;return 0;case WM_KEYUP:keyswParam = FALSE;return 0;case WM_SIZE:ReSizeGLScene(LOWORD(lParam),HIWORD(lParam); return 0;return DefWindowProc(hWnd,uMsg,wParam,lParam);int WINAPI WinMain(HINSTANCEhIns