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Prevent reverse in Tweenmax.from or .staggerFrom

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This thread was started before GSAP 3 was released. Some information, especially the syntax, may be out of date for GSAP 3. Please see the GSAP 3 migration guide and release notes for more information about how to update the code to GSAP 3's syntax. 

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Hey folks,


either I´m blind or there is no answer yet to my question:


I would like animations only to happen once when scrolling in, but when scrolling out (backwards, so the trigger is active again) and then scroll in again I dont want the animation to reverse and run again.


So long story short: the animation should only be triggered once and then the animated elements should stay where they are forever indepently of scrolling back:)


I found only this http://greensock.com/forums/topic/7832-disable-reverse/ but it seems not to be up to date anymore. Is there a simple way to achieve this? Or do I have to remove the listener by hand, once the animation finished?


The snippet shows that the "false" parameter doesn´t help here (just in case here without false parameter:

See the Pen zrJVLQ by anon (@anon) on CodePen



Thanks in advance for any possible help. Somehow I feel this should be very easy to achieve, but I didn´t manage to make it work..




See the Pen obPrMj by anon (@anon) on CodePen

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Hi pauloco :),


Welcome to the forums.


This is really more of a ScrollMagic rather than a GreenSock question, but I can certainly answer it for you.


Just add reverse:false to your scene parameters like this:

new ScrollMagic.Scene({
    triggerElement: '#redBox',

The animation will then play when you scroll down, but stay put when you scroll up again.


Here's some more reading about it:



Happy tweening.


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