CustomEase.create( "hop", "M0,0 C0,0 0.056,0.442 0.175,0.442 0.294,0.442 0.332,0 0.332,0 0.332,0 0.414,1 0.671,1 0.991,1 1,0 1,0" ); //now you can reference the ease by ID (as a string): gsap.to(element, { duration: 1, y: -100, ease: "hop" }); DescriptionCustomEase frees you from the limitations of canned easing options; create literally any easing curve imaginable by simply drawing it in the Eas