env_seq->set_debug_name("Environment sequence");
step = &env_seq->add_step("", *shadow_map);
step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));
env_seq->set_debug_name("Environment sequence");
step = &env_seq->add_step("", *shadow_map);
step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));