Programming and Graphics

8.1 Glut 261

glRotatef(30, 0.0, 0.0, 1.0); // rotate by 30 deg about the z axis

//--- Paint three faces:

glColor3f(1.0, 0.0, 1.0);

glBegin(GLQUADSTRIP);

glVertex3d(3, 3, -3);

glVertex3d(3, -3, -3);

glVertex3d(-3, 3, -3);

glVertex3d(-3, -3, -3);

glVertex3d(-3, 3, 3);

glVertex3d(-3, -3, 3);

glVertex3d(3, 3, 3);

glVertex3d(3, -3, 3);

glEnd();

glColor3f(1.0, 1.0, 0.0); // Paint the individual faces

glBegin(GLQUADS);

glVertex3d(-3, 3, 3);

glVertex3d(-3, -3, 3);

glVertex3d(3, -3, 3);

glVertex3d(3, 3, 3);

glEnd();

glColor3f(0.0, 0.0, 1.0);

glBegin(GLQUADS);

glVertex3d(-3, -3, -3);

glVertex3d(3, -3, -3);

glVertex3d(3, -3, 3);

glVertex3d(-3, -3, 3);

glEnd();

glColor3f(0.0, 1.0, 1.0);

glBegin(GLQUADS);

glVertex3d(-3, 3, -3);

glVertex3d(3, 3, -3);

glVertex3d(3, 3, 3);

glVertex3d(-3, 3, 3);

glEnd();

glColor3f(0.2, 1.0, 0.0);

glBegin(GLQUADS);

glVertex3d(3, 3, -3);

glVertex3d(3, -3, -3);

glVertex3d(-3,-3, -3);

glVertex3d(-3, 3, -3);

glEnd();

glFlush();

}

The faces of the cube were painted with different colors using theglColor3f
function.