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Use only specific interval of ease function

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Hi there!


Is it possible to apply only specific interval of ease function to my tween. Something like:

TweenMax.to( startPos, 2, endPos );

endPos.ease = Power2.easeInOut.interval(0.25, 0.9);

I don't want skip first 0.25 and last 0.1 progress of my tween.

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I read your question a few times but I'm still pretty confused. Are you saying that you want your tween to suddenly jump to where the ease would normally be at 25% of its progress, but at the beginning? And then continue on normally but end where the ease's typical 90% progress value is? So it would never reach its true ending position? 


Do you have an example or more details you can share? 


A few tips:

  1. You can literally tween the progress of another tween. Like TweenMax.fromTo(otherTween, 2, {progress:0.25}, {progress:0.9})
  2. You can create any ease you can imagine using CustomEase. See http://greensock.com/customease
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I agree with you that my question a little bit unclear. So I will provide an example to show you my case.


See the Pen bqWEvq?editors=0010 by kryvonos_v (@kryvonos_v) on CodePen


In provided Codepen we have a box and two buttons: "Move" and "Move further". 


When I click "Move" button box starts moving to the right {x: 400}. If I click the button "Move further" before previous animation has ended I see bitter transition between animation.


So, how can I achieve smooth effect in this case?

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When you click the 'move further' button, you're overwriting that 'move' tween and starting a new one. It seems to me like you're trying to update the tween on the fly. If that's the case, I think TweenMax's updateTo() method is what you're looking for:




If you're going to get complex with things, the thread on additive animation may be of some interest to you as well.




Our resident wizard Blake has a really nice demo here:


See the Pen PPmJpL by osublake (@osublake) on CodePen


Hopefully that helps.


Happy tweening.


Edited by Dipscom
Amending dead link ;)
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