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( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)（主函数） 三、程序代码 #include windows.h //需要用到的各个头文件 #include gl\gl.h #include gl\glu.h #include gl\glaux.h HDC hDC=NULL; HGLRC hRC=NULL; HWND hWnd=NULL; HINSTANCE hInstance; bool keys[256]; bool active=TRUE; bool fullscreen=TRUE; GLfloat rtri; GLfloat rquad; LRESULT CALLBACK 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);