backward direction duration during forward from jump onSeek onSeek onSeek onStep onStep onStep peek peek peek point progress seek seek seek step step step to tween via via

peek() [1/3] const detail::tweentraits<T, Ts...>::valuesType& peek ( ) const Returns the current tween values. This returns the current tween value as returned by the tween::step() function, except that it does not perform a step. Returns std::tuple<Ts...> with the current tween values.