georgealways

Negative start times don't seem to be respected in any of the Timeline flavors. Negative start times would be extremely useful for nested Timelines that are supposed to conclude at a given time. Following the pattern of objects that return Timelines describing their animation, one would have to measure the duration of the returned Timeline to get this behavior. SomeObject.prototype.getAnimation = function() { var anim = new TimelineLite(); anim.to( this, 10, { foo: bar }, 0 ); return anim; }; var animation = someObject.getAnimation(); mainTimeline.add( animation, 5 - animation.endTime() ); // where 5 is "arrival" time What would be much nicer is for that "10" to be contained within the animation itself. SomeObject.prototype.getAnimation = function() { return new TimelineLite().to( this, 10, { foo: bar }, -10 ); }; mainTimeline.add( someObject.getAnimation(), 5 ); Also speaks to the idea of GSAP tweening methods accepting an 'end time' parameter as opposed to duration. Curious to know if there is already a method in place to get this behavior.