- glBegin(GL_QUAD_STRIP);
 - glColor3f(1,0,0);
 - glVertex3f(0,1,0);
 - glVertex3f(0,0,0);
 - glColor3f(0,0,1);
 - glVertex3f(1,1,0);
 - glVertex3f(1,0,0);
 - glColor3f(0,1,0);
 - glVertex3f(2,1,0);
 - glVertex3f(2,0,0);
 - glColor3f(0,1,1);
 - glVertex3f(3,1,0);
 - glVertex3f(3,0,0);
 - glEnd;
 
