Here, top refers to the top of the trigger element, which is thirdCircle in this case.Let’s change the start position of the animation in our previous demo using the code below: However, we can change the default start position using the ScrollTrigger start property. You’ll help inform the type of content we create and get access to exclusive meetups, social accreditation, and swag.īy default, the trigger element starts animating as soon as it enters the bottom of the scroller’s viewport. Advisory boards aren’t just for executives.Explore creating a custom mouse cursor with CSS.Discover how to use the React children prop with TypeScript.Switch between multiple versions of Node.Use React's useEffect to optimize your application's performance.Learn how LogRocket's Galileo cuts through the noise to proactively resolve issues in your app.Don't miss a moment with The Replay, a curated newsletter from LogRocket.If you already know the fundamentals of ScrollTrigger, you can skip this section and jump straight to the project section, where we’ll build a simple landing page in React and trigger the animations on the scroll with ScrollTrigger. You can check out the full list of ScrollTrigger properties and methods in their documentation. The ScrollTrigger basics you will learn in this section will be used in building our project later in this tutorial. Find a fantastic resource to get you up to speed with GSAP here. This tutorial assumes that the reader has a fair understanding of how to animate using GSAP, so we will only cover the basics of ScrollTrigger. ScrollTrigger basicsīefore we trigger our animations on the scroll using ScrollTrigger, let’s get familiar with the basics. Support for vertical and horizontal scrollingįind out more about these possibilities on ScrollTrigger’s website.Automatic resizing on different screens.Toggle playback state or scrub through animations.Animate anything (DOM, CSS, SVG, WebGL, and Canvas) on the scroll.Here are some of the things you can do with ScrollTrigger: The possibilities of the GSAP ScrollTrigger plugin The good news is, ScrollTrigger solves this problem with its ability to let you trigger the animations when a user reaches a specified viewport while scrolling. On scrolling down, you’ll notice that the third circle had already moved towards the x-axis before you reached that section of the page. The third circle might not be visible to you at first glance, so you need to scroll down. The third circle has been animated with GSAP to move along the x-axis of the page for two seconds. There are three circles in the demo below. In this section we’ll look at the importance of ScrollTrigger, and when you should use it. ScrollTrigger is built on the GSAP and can be used to trigger those intriguing GSAP animations on the scroll with just a few lines of code, excellent performance, cross-browser compatibility, and support from the GSAP community. The creators of GSAP strongly believe it is the fastest full-featured scripted animation tool on the planet. It is arguably the best animation library for the web because it can animate DOM elements, canvas, SVG, CSS, WebGL, generic JavaScript objects, and so much more. GSAP is an acronym for the GreenSock Animation Platform. Introducing the GSAP ScrollTrigger plugin A basic knowledge of HTML, CSS, JavaScript, and React.Basic understanding of how to animate elements with GSAP.npx 5.2 or higher installed on their local development machine.Node >= 8.10 installed on their local development machine.This tutorial assumes the reader has the following: By the end of this tutorial, you will understand the basics of the GSAP ScrollTrigger plugin and how to use it in React. In the process, we will build a landing page in React that uses GSAP for animations and ScrollTrigger to trigger the animations. In this tutorial, we will learn about the GSAP ScrollTrigger plugin, how to use it to trigger animations on the scroll, and the use cases for it. ScrollTrigger is the reinvention of scroll-driven animation but in a more suitable and user-friendly way, giving you the ability to control the flow of GSAP animations or any other thing while scrolling. From the launch of SuperScrollorama by John Polacek in 2013 to ScrollMagic by Jan Paepke in 2014, and the recent announcement of ScrollTrigger by GSAP in 2020. Over the years, there has been a significant improvement in scroll driven animation libraries that power scrollytelling in JavaScript. These libraries provide a simple interface for creating different interactions on the scroll and improving user experience. Scrollytelling can be complicated to implement on a website without the use of scroll driven animation libraries.
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