ScrollTrigger is not working?

[tst-flopp 1 Likes (Newbie)]

import gsap from "gsap";
import { ScrollTrigger } from "gsap/ScrollTrigger";
import { useLayoutEffect } from "react";

gsap.registerPlugin(ScrollTrigger);

function Home() {
useLayoutEffect(() => {
    let tl = gsap.timeline({
      defaults: {
        immediateRender: false,
      },
    });

    tl.to(".animaition-112", {
      opacity: 1,
      y: 0,
      scrollTrigger: {
        trigger: ".animaition-112",
        start: "top center",
        end: "center 30%",
        markers: true,
      },
    });

    return () => {
      tl.kill();
    };
  }, []);
	return <></>
}

why scrolltrigger animation is not working and triggering mechanism is worked and there is no transition.

if i leave timeline and use gsap.to()  that will work what can i do there. help please.

 

 

[GSAP Helper 89 Likes (Contributor)]

It's pretty tough to troubleshoot without a minimal demo - the issue could be caused by CSS, markup, a third party library, your browser, an external script that's totally unrelated to GSAP, etc. Would you please provide a very simple CodePen or CodeSandbox that demonstrates the issue? 

 

Please don't include your whole project. Just some colored <div> elements and the GSAP code is best (avoid frameworks if possible). See if you can recreate the issue with as few dependancies as possible. If not, incrementally add code bit by bit until it breaks. Usually people solve their own issues during this process! If not, then at least we have a reduced test case which greatly increases your chances of getting a relevant answer.

 

Here's a starter CodePen that loads all the plugins. Just click "fork" at the bottom right and make your minimal demo: 

See the Pen aYYOdN by GreenSock (@GreenSock) on CodePen

 

If you're using something like React/Next/Nuxt/Gatsby or some other framework, you may find CodeSandbox easier to use. 

 

Once we see an isolated demo, we'll do our best to jump in and help with your GSAP-specific questions. 

[tst-flopp 1 Likes (Newbie)]

here the codesandbox  link

[mvaneijgen 1,555 Likes (Superhero)]

Is this what you are looking for?  I've moved your ScrollTrigger logic to the timeline it should control instead of it being on the tween it self. 

 

https://codesandbox.io/s/affectionate-williamson-zcu56u