[OpenGL] Rysowanie kwadratu

glBegin( GL_QUADS );
glColor3f( 1.0f, 0.0f, 0.0f ); glVertex2f( 0.0f, 0.0f );
glColor3f( 0.0f, 1.0f, 0.0f ); glVertex2f( 0.87f, 1.0f );
glColor3f( 0.0f, 0.0f, 1.0f ); glVertex2f( - 0.87f, 1.0f );
glColor3f( 0.0f, 0.0f, 0.0f ); glVertex2f( 0.0f, 1.0f );
glEnd();

glBegin( GL_QUADS ); // Rysujemy kwadraty
glVertex3f( - 1.0f, 1.0f, 0.0f ); // górny lewy
glVertex3f( 1.0f, 1.0f, 0.0f ); // górny prawy
glVertex3f( 1.0f, - 1.0f, 0.0f ); // dolny prawy
glVertex3f( - 1.0f, - 1.0f, 0.0f ); // dolny lewy
glEnd();