Triangle Task 3

#include <GL/glut.h>

void shapes (void) {

/*glColor3f(1.0, 1.0, 1.0); //this will set a color of the square.
glBegin(GL_LINES); // write shape u want to create
glVertex3f(-0.5, -0.5, 0.0);
glVertex3f(-0.5, 0.5, 0.0);
glVertex3f(0.5, 0.5, 0.0);
glVertex3f(0.5, -0.5, 0.0);*/

/*glBegin(GL_POINTS);
glVertex3f(.5,.5,0);
glVertex3f(-.5,-.5,0);
glVertex3f(0,.5,0);
glVertex3f(.5,0,0);
glVertex3f(0,0,0);*/

/*glBegin(GL_LINE_STRIP);
  glVertex3f(0,0,0);
  glVertex3f(-.5,0,0);
  glVertex3f(.5,.5,0);
  glVertex3f(-.5,.5,0);
  glVertex3f(.5,0,0);*/

    glBegin(GL_TRIANGLES);
    glColor3f(1, .0, 0);
    glVertex3f(0, 0, 0);
    glVertex3f(1, 0, 0);
    glVertex3f(0.5, 1, 0);

glBegin(GL_TRIANGLES);
    glColor3f(.5, .0, .1);
    glVertex3f(0.500, 0.0, 0);
    glVertex3f(0.250, .500, 0);
    glVertex3f(0.750, 0.500, 0);

glBegin(GL_TRIANGLES);
    glColor3f(1.0, 1.0, 1.0);
    glVertex3f(0.750, 0.0, 0);
    glVertex3f(0.625, .250, 0);
    glVertex3f(0.875, 0.250, 0);

glBegin(GL_TRIANGLES);
    glColor3f(1.0, 1.0, 1.0);
    glVertex3f(0.250, 0.0, 0);
    glVertex3f(0.125, .250, 0);
    glVertex3f(0.375, 0.250, 0);


glBegin(GL_TRIANGLES);
    glColor3f(1.0, 1.0, 1.0);
    glVertex3f(0.500, 0.500, 0);
    glVertex3f(0.375, .750, 0);
    glVertex3f(0.625, 0.750, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.875, 0.0, 0);
    glVertex3f(0.815, .125, 0);
    glVertex3f(0.935, 0.125, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.625, 0.0, 0);
    glVertex3f(0.563, .125, 0);
    glVertex3f(0.688, 0.125, 0);


glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.625, 0.0, 0);
    glVertex3f(0.563, .125, 0);
    glVertex3f(0.688, 0.125, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.750, 0.250, 0);
    glVertex3f(0.688, .375, 0);
    glVertex3f(0.813, 0.375, 0);


glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.250, 0.250, 0);
    glVertex3f(0.188, .375, 0);
    glVertex3f(0.313, 0.375, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.125, 0.0, 0);
    glVertex3f(0.063, .125, 0);
    glVertex3f(0.188, 0.125, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.375, 0.0, 0);
    glVertex3f(0.313, .125, 0);
    glVertex3f(0.438, 0.125, 0);

glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.375, 0.0, 0);
    glVertex3f(0.313, .125, 0);
    glVertex3f(0.438, 0.125, 0);


glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.375, 0.500, 0);
    glVertex3f(0.313, .625, 0);
    glVertex3f(0.438, 0.625, 0);


glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.625, 0.500, 0);
    glVertex3f(0.563, .625, 0);
    glVertex3f(0.688, 0.625, 0);


glBegin(GL_TRIANGLES);
    glColor3f(0.3, 1, 0.0);
    glVertex3f(0.500, 0.750, 0);
    glVertex3f(0.438, .875, 0);
    glVertex3f(0.563, 0.875, 0);




//int a=6; int b=6; int c=6;
//glBegin(GL_TRIANGLES);
 //   glColor3f(a/4, a/6, a/4);
 //   glVertex3f(-0.6,-0.75,0);
 // glVertex3f(0,0.75,0);

/*glBegin(GL_QUADS);
glVertex3f(-0.5, -0.5, 0.0);
glVertex3f(-0.5, 0.5, 0.0);
glVertex3f(0.5, 0.5, 0.0);
glVertex3f(0.5, -0.5, 0.0);*/

/*glBegin(GL_TRIANGLE_FAN);
         glColor3f(1,0,0);
         glVertex2f(0,0.5);
         glVertex2f(-0.4,0);
         glVertex2f(0.4,0);
    glVertex2f(0,-0.5);
*/

glEnd();
}

void display (void) {

// clearing the window with black color, 1st 3 parameter are for R,G,B. last one for opacity
glClearColor (0.0,0.0,0.0,1.0);
    glClear (GL_COLOR_BUFFER_BIT);
    glLoadIdentity();
     //viewing transformation
//glulookat() positions the camera towards the object
//camera position, camera target, upvector
    gluLookAt (0.0, 0.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
shapes();
glFlush();
}

void reshape (int w, int h) {

// 1st 2 parameters for lower left corner of the viewport rectangle. the default is 0,0
// the next coordinates are width and hight of the viewport
//Set the viewport to be the entire window
glViewport (0, 0, (GLsizei)w, (GLsizei)h);

// setting the camera
glMatrixMode (GL_PROJECTION);
glLoadIdentity ();

//perspective transform
//gluPerspective (30, (GLfloat)w / (GLfloat)h, 1.0, 100.0);
gluPerspective (30, 1, 1.0, 100.0);
glMatrixMode (GL_MODELVIEW); //switch back the the model editing mode.

}

int main (int argc, char **argv) {
    glutInit (&argc, argv);
glutInitDisplayMode (GLUT_SINGLE); // single buffering.. (double buffering for animation)
// full screen is 1000,1000
// this 0,0 or 1000,1000 are world co ordinates
glutInitWindowSize (700, 700);
glutInitWindowPosition (100, 100);
    glutCreateWindow ("A basic OpenGL Window");
// registering callback functions
    glutDisplayFunc (display);
glutReshapeFunc (reshape);
    glutMainLoop ();
    return 0;
}