mouse.signal_axis_motion.connect(sigc::bind_return(sigc::mem_fun(this, &Viewer::axis_motion), false));
light.set_position(GL::Vector4(0, 0, 1, 0));
- lighting.attach(0, light);
+ lighting.attach(light);
camera.set_up_direction(GL::Vector3(0, 0, 1));
update_camera();