step = &env_seq->add_step("", *shadow_map);
step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));
step->set_depth_test(&GL::DepthTest::lequal());
env_map = make_unique<GL::EnvironmentMap>(256, GL::RGB16F, 7, sphere, *env_seq);
step = &env_seq->add_step("", *shadow_map);
step->set_lighting(&resources.get<GL::Lighting>("Desert.lightn"));
step->set_depth_test(&GL::DepthTest::lequal());
env_map = make_unique<GL::EnvironmentMap>(256, GL::RGB16F, 7, sphere, *env_seq);