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Dustyn Eskelson

Utility Methods and Easing

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Is there a way to use eases with the utility methods like interpolate? I would like to ease (custom ease really) the output from the interplate method.


Thanks in advance,


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hmm, i'm not understanding exactly what you want. 

Have you looked at the distribute() utility function? It makes ease-based distribution of values very easy: https://greensock.com/docs/v3/GSAP/UtilityMethods/distribute()



also keep in mind that eases themselves are functions that return values based on the progress you pass in.


So you can do something like Power4.easeIn(0.3) and get the corresponding y value on the ease graph.


Perhaps this pen will help you understand how it works


See the Pen ZEpzdZq by snorkltv (@snorkltv) on CodePen


click around and you'll see you get more small circles than large circles


You can do a similar thing with CustomEase by passing it into parseEase.


open the console on this pen:

See the Pen GRWmwqe?editors=1111 by snorkltv (@snorkltv) on CodePen


Once you interpolate your value perhaps you can pass that into your CustomEase


if you need more help please provide a minimal demo and some more info on what you want to do.

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lol i just remembered I had a video on tapping into eases as functions. doh!



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I'm sorry, was totally clear in my head, haha.


So I'm using an interpolate utility method inside a timeline onUpdate function. I'm feeding it this.progress() to interpolate the start, end values. This works great but I would like to  ease that interpolation rather than just a linear transition.



Read through your responses and I did not realize Eases were functions... All I needed was to wrap this.progress() with an Ease function and I got what I wanted!


Thank you!


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LOL. Carl Googles "GreenSock ease curves" and finds a video by.... hmmm... this Creative Coding Club looks interesting. 🤣


Don't feel too bad my friend. I've Googled a couple things and found my own tutorials and/or answers I posted here in the forum. :)

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