OpenGL秒安装及显示

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快毕业了，狂补OpenGL中。。。。

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想当初安装opencv那么麻烦，现在openGL几秒钟就安装好了

注意：这里前提是你建立好了工程，如果连工程都不会建立~~GG

测试代码：

　　　　复制到工程进行测试！

 // source: http://jingyan.baidu.com/article/d5c4b52bca5005da560dc5d6.html
 #include <GL/glut.h>
 #include <stdlib.h>
 #include <math.h>
 #include <stdio.h>

 , spin = , day = ;
 static GLint fogMode;
 ;
 const GLfloat R = 1.0f;
 const GLfloat Pi = 3.1415926536f;

 void DrawCircle() {

     int  i;
     glClear(GL_COLOR_BUFFER_BIT);
     glBegin(GL_LINE_LOOP);

     ; i < n; ++i)
     {
         glColor3f(1.0, 0.0, 0.0);
         glVertex2f(R*cos( * Pi / n*i), R*sin( * Pi / n*i));
     }

     glEnd();
     glFlush();
 }

 void init(void) {
     GLfloat position[] = { 0.5, 0.5, 3.0, 0.0 };
     glEnable(GL_DEPTH_TEST);                          //防止遮挡
     glLightfv(GL_LIGHT0, GL_POSITION, position);
     glEnable(GL_LIGHTING);
     glEnable(GL_LIGHT0);

     {
         GLfloat mat[] = { 0.1745, 0.01175, 0.01175 };
         glMaterialfv(GL_FRONT, GL_AMBIENT, mat);
         mat[] = ] = ] = 0.04136;
         glMaterialfv(GL_FRONT, GL_DIFFUSE, mat);
         mat[] = ] = ] = 0.626959;
         glMaterialfv(GL_FRONT, GL_SPECULAR, mat);
         glMaterialf(GL_FRONT, GL_SHININESS, 0.6*128.0);
     }

     glEnable(GL_FOG);

     {
         GLfloat fogColor[] = { 0.5, 0.5, 0.5, 1.0 };
         fogMode = GL_EXP;
         glFogi(GL_FOG_MODE, fogMode);
         glFogfv(GL_FOG_COLOR, fogColor);
         glFogf(GL_FOG_DENSITY, 0.35);
         glHint(GL_FOG_HINT, GL_DONT_CARE);
         glFogf(GL_FOG_START, 1.0);
         glFogf(GL_FOG_END, 5.0);
     }

     glClearColor(0.5, 0.9, 0.9, 1.0);  /* fog color */

 }

 void display(void) {
     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     glColor3f(0.0, 1.0, 1.0);
     glPushMatrix(); //记住自己的位置
     glutSolidSphere(, );   /* 画太阳半径、 20经度、16纬度*/
     glRotatef(spin, 0.0, 1.0, 0.0);  //自转，绕着一个向量以给定角度旋转（正的为逆时针）
     glTranslatef(2.0, 1.0, 0.0);
     glRotatef(spin, 1.0, 0.0, 0.0); //公转
     glRectf(0.1, 0.1, 0.5, 0.5);
     glColor3f(0.0, 0.0, 1.0);
     glutWireSphere(, );    /* 画第一颗小行星 */
     glColor3f(1.0, 0.0, 0.0);
     glTranslatef(2.0, 1.0, 0.0);
     glRotatef( * spin, 0.0, 1.0, 0.0);
     glutSolidSphere(, );
     glPopMatrix();//回到原来的位置
     glutSwapBuffers();
 }

 void spinDisplay(void) {
     spin = spin + ;
     )
         spin = spin - ;
     glutPostRedisplay();
 }

 void mouse(int button, int state, int x, int y) {
     switch (button)
     {
     case GLUT_LEFT_BUTTON:
         if (state == GLUT_DOWN)
             glutIdleFunc(spinDisplay);
         break;

     case GLUT_MIDDLE_BUTTON:
         if (state == GLUT_DOWN)
             glutIdleFunc(NULL);
         break;

     default:
         break;
     }

 }

 void reshape(int w, int h) {
     glViewport(, , (GLsizei)w, (GLsizei)h);
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
     gluPerspective(60.0, (GLfloat)w / (GLfloat)h, 0.5, 20.0);
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();
     gluLookAt(0.0, 10.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
 }

 void keyboard(unsigned char key, int x, int y) {
     switch (key) {
     case 'd':
         day = (day + ) % ;
         glutPostRedisplay();
         break;
     case 'D':
         day = (day - ) % ;
         glutPostRedisplay();
         break;
     case 'y':
         year = (year + ) % ;
         glutPostRedisplay();
         break;
     case 'Y':
         year = (year - ) % ;
         glutPostRedisplay();
         break;
     :
         exit();
         break;
     default:
         break;
     }
 }

 int main(int argc, char** argv) {
     glutInit(&argc, argv);
     glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
     glutInitWindowSize(, );
     glutInitWindowPosition(, );
     glutCreateWindow("OpengGL 程序设计--这段代码是我抄的");
     init();
     //glutDisplayFunc(DrawCircle);
     glutDisplayFunc(display);
     glutReshapeFunc(reshape);
     //glutKeyboardFunc(keyboard);
     glutMouseFunc(mouse);
     glutMainLoop();

     ;
 }

效果图：

参考：

　　　　https://jingyan.baidu.com/article/eb9f7b6d7621b9869364e807.html

　　　　http://blog.csdn.net/Jacketinsysu/article/details/49563139