OpenGL.rar_opengl colorcube_opengl简单

#include <stdio.h> #include<GL\glut.h> static float xrot = 0.0; static float yrot = 0.0; static float zrot = 0.0; void cube() //立方体参数（每一面的顶点以及顶点的颜色） { glBegin(GL_QUADS); glColor3f(1.0,1.0,0.0); glVertex3f( 1.0, 1.0,-1.0); glColor3f(0.0,1.0,0.0); glVertex3f(-1.0, 1.0,-1.0); glColor3f(0.0,1.0,1.0); glVertex3f(-1.0, 1.0, 1.0); glColor3f(1.0,1.0,1.0); glVertex3f( 1.0, 1.0, 1.0); glColor3f(1.0,0.0,1.0); glVertex3f( 1.0,-1.0, 1.0); glColor3f(0.0,0.0,1.0); glVertex3f(-1.0,-1.0, 1.0); glColor3f(0.0,0.0,0.0); glVertex3f(-1.0,-1.0,-1.0); glColor3f(1.0,0.0,0.0); glVertex3f( 1.0,-1.0,-1.0); glColor3f(1.0,1.0,1.0); glVertex3f( 1.0, 1.0, 1.0); glColor3f(0.0,1.0,1.0); glVertex3f(-1.0, 1.0, 1.0); glColor3f(0.0,0.0,1.0); glVertex3f(-1.0,-1.0, 1.0); glColor3f(1.0,0.0,1.0); glVertex3f( 1.0,-1.0, 1.0); glColor3f(1.0,0.0,0.0); glVertex3f( 1.0,-1.0,-1.0); glColor3f(0.0,0.0,0.0); glVertex3f(-1.0,-1.0,-1.0); glColor3f(0.0,1.0,0.0); glVertex3f(-1.0, 1.0,-1.0); glColor3f(1.0,1.0,0.0); glVertex3f( 1.0, 1.0,-1.0); glColor3f(0.0,1.0,1.0); glVertex3f(-1.0, 1.0, 1.0); glColor3f(0.0,1.0,0.0); glVertex3f(-1.0, 1.0,-1.0); glColor3f(0.0,0.0,0.0); glVertex3f(-1.0,-1.0,-1.0); glColor3f(0.0,0.0,1.0); glVertex3f(-1.0,-1.0, 1.0); glColor3f(1.0,1.0,0.0); glVertex3f( 1.0, 1.0,-1.0); glColor3f(1.0,1.0,1.0); glVertex3f( 1.0, 1.0, 1.0); glColor3f(1.0,0.0,1.0); glVertex3f( 1.0,-1.0, 1.0); glColor3f(1.0,0.0,0.0); glVertex3f( 1.0,-1.0,-1.0); glEnd(); } void display() //展示 { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); //用当前缓冲区清除值来清除指定缓冲区 glLoadIdentity(); //重置为单位矩阵 glTranslatef(0, 0, -5); //平移变换 glRotatef(xrot, 1, 0, 0); //旋转变换 glRotatef(yrot, 0, 1, 0); glRotatef(zrot, 0, 0, 1); //glPolygonMode(GL_FRONT, GL_LINE); cube(); xrot = xrot + 1; yrot = yrot + 1; zrot = zrot + 1; glutSwapBuffers(); //交换缓冲区指针 } void reshape(int w, int h) //改变形态 { if(h==0) h = 1; glViewport(0, 0, (GLsizei) w, (GLsizei) h); //打开窗口 glMatrixMode(GL_PROJECTION); //设置当前矩阵模式 glLoadIdentity(); gluPerspective(45.0, (GLfloat)w/(GLfloat)h, 0.1, 100.0); //指定视景体 glMatrixMode(GL_MODELVIEW); } void init(int width, int height ) //起始 { if(height == 0) height = 1; glClearColor(0.0, 0.0, 0.0, 0.0); glClearDepth(1.0); glDepthFunc(GL_LESS); //指定深度缓冲比较值 glEnable(GL_DEPTH_TEST); //启用深度测试 glShadeModel(GL_SMOOTH); //着色模式：渐变色 glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(45.0, (GLfloat)width/(GLfloat)height, 1, 100.0); glMatrixMode(GL_MODELVIEW); } void keyboard(unsigned char key, int w, int h) //键盘操作 { if(key == 'f') // 进入全屏 glutFullScreen(); if(key == 'F') // 退出全屏 { glutReshapeWindow(640, 480); // 设置窗口大小（不能用初始化的函数） glutPositionWindow(400, 100); // 设置窗口位置（不能用初始化的函数） } /*if(key == 27) // ESC退出程序 exit(0);*/ } int main(int argc, char** argv) //主函数 { glutInit(&argc, argv); //初始化GLUT库 glutInitDisplayMode(GLUT_RGBA | GLUT_DOUBLE | GLUT_DEPTH); glutInitWindowPosition(400, 100); glutInitWindowSize(640, 480); glutCreateWindow("旋转的渐变色立方体"); glutDisplayFunc(display); glutIdleFunc(display); glutReshapeFunc(reshape); glutKeyboardFunc(keyboard); init(640, 480); glutMainLoop(); return 0; }