spining cube in opengl

#include <GL/gl.h>
#include <GL/glu.h>
#include <GL/glut.h>
#define true 1
#define false 0
static spinning = false;
static const int FPS = 60;

static GLfloat currentAngleOfRotation = 0.0;

void reshape(GLint w, GLint h) {

  GLfloat aspect = (GLfloat)w / (GLfloat)h;
  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  if (w <= h) {
    glOrtho(-2.0, 2.0, -2.0/aspect, 2.0/aspect, -1.0, 1.0);
  } else {
 
    glOrtho(-2.0*aspect, 2.0*aspect, -2.0, 2.0, -1.0, 1.0);
  }
}
void display() {
  glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
  glMatrixMode(GL_MODELVIEW);
  glLoadIdentity();
  glRotatef(currentAngleOfRotation, 0.0, 10.0, 1.0);
 // glRectf(-25.0, -25.0, 25.0, 25.0);
//  printf("f1=%d f2=%d",f1,f2);
 // glScalef(5.0,3.0,5.0);
 glTranslatef(0.3,0.2,0.0);
  glScalef(currentAngleOfRotation/120,currentAngleOfRotation/120,2);

glBegin(GL_QUADS);
    glColor3f(1.0, 1.0, 0.0);
glVertex3f(-0.5,-0.5,-0.5);
glVertex3f(0.5,-0.5,-0.5);
glVertex3f(0.5,0.5,-0.5);
glVertex3f(-0.5,0.5,-0.5);
glEnd();
// glColor3f(0.0, 1.0, 1.0);
glBegin(GL_QUADS);
glColor3f(1.0, 0.0, 1.0);
glVertex3f(0.5,0.5,-0.5);
glVertex3f(0.5,-0.5,-0.5);
glVertex3f(0.5,-0.5,0.5);
glVertex3f(0.5,0.5,0.5);
glEnd();

// glColor3f(1.0, 1.0, 0.0);
glBegin(GL_QUADS);
glColor3f(0.0, 1.0, 0.0);
glVertex3f(0.5,-0.5,0.5);
glVertex3f(-0.5,-0.5,0.5);
glVertex3f(-0.5,0.5,0.5);
glVertex3f(0.5,0.5,0.5);
glEnd();

// glColor3f(0.0, 1.0, 0.0);
glBegin(GL_QUADS);
glColor3f(0.0, 1.0, 1.0);
glVertex3f(-0.5,-0.5,-0.5);
glVertex3f(-0.5,-0.5,0.5);
glVertex3f(-0.5,0.5,0.5);
glVertex3f(-0.5,0.5,-0.5);
glEnd();
// glColor3f(1.0, 1.0, 0.0);
glBegin(GL_QUADS);
glColor3f(0.0, 1.0, 1.0);
glVertex3f(0.5,0.5,-0.5);
glVertex3f(0.5,0.5,0.5);
glVertex3f(-0.5,0.5,0.5);
glVertex3f(-0.5,0.5,-0.5);
glEnd();

//glColor3f(1.0, 0.0, 1.0);

glBegin(GL_QUADS);
glColor3f(1.0, 1.0, 0.0);
glVertex3f(-0.5,-0.5,-0.5);
glVertex3f(0.5,-0.5,-0.5);
glVertex3f(0.5,-0.5,0.5);
glVertex3f(-0.5,-0.5,0.5);
glEnd();
  glFlush();
  glutSwapBuffers();
}

void timer(int v) {
  if (spinning) {
    currentAngleOfRotation += 2.0;
    if (currentAngleOfRotation > 360.0) {
      currentAngleOfRotation -= 360.0;
    }
    glutPostRedisplay();
  }
  glutTimerFunc(1000/FPS, timer, v);
}
void mouse(int button, int state, int x, int y) {
  if (button == GLUT_LEFT_BUTTON && state == GLUT_DOWN) {
    spinning = true;
  } else if (button == GLUT_RIGHT_BUTTON && state == GLUT_DOWN) {
    spinning = false;
  }
}
int main(int argc, char** argv) {
  glutInit(&argc, argv);
  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB|GLUT_DEPTH);
  glutInitWindowPosition(80, 80);
  glutInitWindowSize(800, 500);
  glutCreateWindow("Spinning Square");
  glutReshapeFunc(reshape);
     glEnable(GL_DEPTH_TEST);
  glutDisplayFunc(display);
  glutTimerFunc(100, timer, 0);
  glutMouseFunc(mouse);
  glutMainLoop();
}

QUAD IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_QUADS);
                       
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(200,150);
                        glColor3f(1.0,0.0,1.0);
                        glVertex2f(140,150);
                     
   //glVertex2f(140,200);
                        //glVertex2f(180,200);
                     
                     
        glColor3f(1.0,1.0,0.0);
                       
    //glVertex2f(250,140);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}

QUAD STRIP IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_QUAD_STRIP);
                       
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                     
                        glColor3f(1.0,0.0,1.0);
                        glVertex2f(140,150);
                         glVertex2f(200,150);
   glVertex2f(140,200);
                        glVertex2f(180,200);
                     
                     
        glColor3f(1.0,1.0,0.0);
                       
    //glVertex2f(250,140);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}

TRIANGLE FAN IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_TRIANGLE_FAN);
                         glVertex2f(140,150);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glColor3f(1.0,0.0,1.0);
                       
                      glVertex2f(200,120);
                       glColor3f(1.0,1.0,0.0);
                        glVertex2f(250,140);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}

TRIANGLE STRIP IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_TRIANGLE_STRIP);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(140,150);
                       glVertex2f(200,150);
                        glVertex2f(150,200);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}

Drawing figure using Line Strip

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
 
   
     glPointSize(15);
     glBegin(GL_LINE_STRIP);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(140,150);
                       glVertex2f(200,150);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
 
    glutMainLoop();
}

DRAWING TRIANGLE USING LINE LOOP

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_LINE_LOOP);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(140,150);
                       // glVertex2f(200,150);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}

DRAWING POINTS IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
 
   
     glPointSize(15);
     glBegin(GL_POINTS);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(140,150);
                        glVertex2f(200,150);
     glEnd();
     glFlush();
}

void init(void)
{

   
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
 
    glutMainLoop();
}

CREATING A TRIANGLE IN OPENGL

#include<GL/glu.h>
#include<GL/glut.h>
#include<GL/gl.h>

void display()
{
glClearColor(1.0,1.0,1.0,0.0);
     glClear(GL_COLOR_BUFFER_BIT);
     glColor3f(1.0,0.0,0.0);
   
   
     glPointSize(15);
     glBegin(GL_TRIANGLES);
                        glVertex2f(90,100);
                        glVertex2f(180,100);
                        glVertex2f(140,150);
                        glVertex2f(200,150);
     glEnd();
     glFlush();
}

void init(void)
{


glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0,640.0,0.0,480.0);
}

int main(int argc,char **argv)
{
    glutInit(&argc,argv);
    glutInitWindowSize(640,480);
    glutInitWindowPosition(100,150);
    glutInitDisplayMode(GLUT_RGB|GLUT_SINGLE);
    glutCreateWindow("Going for a SMILEY :-)");
    init();
glutDisplayFunc(display);
   
    glutMainLoop();
}