getopt.add_option('a', "animation", animation_name, GetOpt::REQUIRED_ARG);
getopt.add_argument("renderable", renderable_name);
getopt(argc, argv);
getopt.add_option('a', "animation", animation_name, GetOpt::REQUIRED_ARG);
getopt.add_argument("renderable", renderable_name);
getopt(argc, argv);