glBegin(GL_QUADS);
glVertex3f(el->pos[0]-el->vervec[0], el->pos[1]-el->vervec[1], el->pos[2]);
glVertex3f(el->pos[0]+el->vervec[1], el->pos[1]-el->vervec[0], el->pos[2]);
glBegin(GL_QUADS);
glVertex3f(el->pos[0]-el->vervec[0], el->pos[1]-el->vervec[1], el->pos[2]);
glVertex3f(el->pos[0]+el->vervec[1], el->pos[1]-el->vervec[0], el->pos[2]);