21CSL66 Program 5

#include <GL/glut.h>

GLfloat angle = 0.0;

void init()
{
    glClearColor(0.0, 0.0, 0.0, 1.0);
    glMatrixMode(GL_PROJECTION);
    glLoadIdentity();
    gluPerspective(45.0, 1.0, 1.0, 100.0);
    glMatrixMode(GL_MODELVIEW);
}

void display()
{
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
    glLoadIdentity();
    glTranslatef(0.0, 0.0, -6.0);
    glRotatef(angle, 1.0, 1.0, 1.0);

    glBegin(GL_QUADS);
    // Front face
    glColor3f(1.0, 0.0, 0.0);
    glVertex3f(-1.0, -1.0, 1.0);
    glVertex3f(1.0, -1.0, 1.0);
    glVertex3f(1.0, 1.0, 1.0);
    glVertex3f(-1.0, 1.0, 1.0);
    // Back face
    glColor3f(0.0, 1.0, 0.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glVertex3f(1.0, 1.0, -1.0);
    glVertex3f(1.0, -1.0, -1.0);
    // Top face
    glColor3f(0.0, 0.0, 1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glVertex3f(-1.0, 1.0, 1.0);
    glVertex3f(1.0, 1.0, 1.0);
    glVertex3f(1.0, 1.0, -1.0);
    // Bottom face
    glColor3f(1.0, 1.0, 0.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(1.0, -1.0, -1.0);
    glVertex3f(1.0, -1.0, 1.0);
    glVertex3f(-1.0, -1.0, 1.0);
    // Right face
    glColor3f(1.0, 0.0, 1.0);
    glVertex3f(1.0, -1.0, -1.0);
    glVertex3f(1.0, 1.0, -1.0);
    glVertex3f(1.0, 1.0, 1.0);
    glVertex3f(1.0, -1.0, 1.0);
    // Left face
    glColor3f(0.0, 1.0, 1.0);
    glVertex3f(-1.0, -1.0, -1.0);
    glVertex3f(-1.0, -1.0, 1.0);
    glVertex3f(-1.0, 1.0, 1.0);
    glVertex3f(-1.0, 1.0, -1.0);
    glEnd();

    glutSwapBuffers();
}

void reshape(int w, int h)
{
    glViewport(0, 0, w, h);
}

void timer(int)
{
    angle += 2.0;
    glutPostRedisplay();
    glutTimerFunc(1000/60, timer, 0);
}

int main(int argc, char** argv)
{
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
    glutInitWindowSize(500, 500);
    glutCreateWindow("vtucode | 3D Transformations");

    init();
    glutDisplayFunc(display);
    glutReshapeFunc(reshape);
    glutTimerFunc(0, timer, 0);

    glEnable(GL_DEPTH_TEST);

    glutMainLoop();
    return 0;
}

braham@braham:~/Desktop/program$ g++ program5.cpp -lGL -lGLU -lglut -o program5
braham@braham:~/Desktop/program$ ./program5