{&do_symmetric, "symmetric", "Symmetric", DEF_SYMMETRIC, t_Bool},
{&speed, "speed", "Speed", DEF_SPEED, t_Float},
{&twistiness, "twistiness", "Twistiness", DEF_TWISTINESS, t_Float},
{&do_symmetric, "symmetric", "Symmetric", DEF_SYMMETRIC, t_Bool},
{&speed, "speed", "Speed", DEF_SPEED, t_Float},
{&twistiness, "twistiness", "Twistiness", DEF_TWISTINESS, t_Float},