Tracing Beam
- Source
- Aceternity UI ↗
- Author
- Aceternity UI
- Licence
- Aceternity UI licence (free component)
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A gradient beam beside an article tracks how far the stage has been scrolled.
Code
"use client";
import { useRef } from "react";
import { TracingBeam } from "@/lab/aceternity/ui/tracing-beam";
export default function TracingBeamDemo() {
const scrollRef = useRef<HTMLDivElement>(null);
return (
<div
ref={scrollRef}
className="@container relative h-full w-full overflow-x-hidden overflow-y-auto overscroll-contain py-8"
>
<TracingBeam className="px-6" container={scrollRef}>
<div className="relative mx-auto max-w-2xl pt-4 pl-6 antialiased @2xl:pl-0">
{dummyContent.map((item, index) => (
<div key={`content-${index}`} className="mb-10">
<h2 className="mb-4 w-fit rounded-full bg-black px-4 py-1 text-sm text-white">
{item.badge}
</h2>
<p className="mb-4 font-serif text-xl">{item.title}</p>
<div className="text-sm leading-relaxed text-neutral-700 dark:text-neutral-300 [&_p]:mb-4">
{item?.image && (
// eslint-disable-next-line @next/next/no-img-element
<img
src={item.image}
alt="blog thumbnail"
height="1000"
width="1000"
className="mb-10 aspect-[16/9] rounded-lg object-cover"
/>
)}
{item.description}
</div>
</div>
))}
</div>
</TracingBeam>
</div>
);
}
const dummyContent = [
{
title: "Lorem Ipsum Dolor Sit Amet",
description: (
<>
<p>
Sit duis est minim proident non nisi velit non consectetur. Esse
adipisicing laboris consectetur enim ipsum reprehenderit eu deserunt
Lorem ut aliqua anim do. Duis cupidatat qui irure cupidatat incididunt
incididunt enim magna id est qui sunt fugiat. Laboris do duis pariatur
fugiat Lorem aute sit ullamco. Qui deserunt non reprehenderit dolore
nisi velit exercitation Lorem qui do enim culpa. Aliqua eiusmod in
occaecat reprehenderit laborum nostrud fugiat voluptate do Lorem culpa
officia sint labore. Tempor consectetur excepteur ut fugiat veniam
commodo et labore dolore commodo pariatur.
</p>
<p>
Dolor minim irure ut Lorem proident. Ipsum do pariatur est ad ad
veniam in commodo id reprehenderit adipisicing. Proident duis
exercitation ad quis ex cupidatat cupidatat occaecat adipisicing.
</p>
<p>
Tempor quis dolor veniam quis dolor. Sit reprehenderit eiusmod
reprehenderit deserunt amet laborum consequat adipisicing officia qui
irure id sint adipisicing. Adipisicing fugiat aliqua nulla nostrud.
Amet culpa officia aliquip deserunt veniam deserunt officia
adipisicing aliquip proident officia sunt.
</p>
</>
),
badge: "React",
image:
"https://images.unsplash.com/photo-1464822759023-fed622ff2c3b?auto=format&fit=crop&q=80&w=1200&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D",
},
{
title: "Lorem Ipsum Dolor Sit Amet",
description: (
<>
<p>
Ex irure dolore veniam ex velit non aute nisi labore ipsum occaecat
deserunt cupidatat aute. Enim cillum dolor et nulla sunt exercitation
non voluptate qui aliquip esse tempor. Ullamco ut sunt consectetur
sint qui qui do do qui do. Labore laborum culpa magna reprehenderit ea
velit id esse adipisicing deserunt amet dolore. Ipsum occaecat veniam
commodo proident aliqua id ad deserunt dolor aliquip duis veniam sunt.
</p>
<p>
In dolore veniam excepteur eu est et sunt velit. Ipsum sint esse
veniam fugiat esse qui sint ad sunt reprehenderit do qui proident
reprehenderit. Laborum exercitation aliqua reprehenderit ea sint
cillum ut mollit.
</p>
</>
),
badge: "Changelog",
image:
"https://images.unsplash.com/photo-1519681393784-d120267933ba?auto=format&fit=crop&q=80&w=1200&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D",
},
{
title: "Lorem Ipsum Dolor Sit Amet",
description: (
<>
<p>
Ex irure dolore veniam ex velit non aute nisi labore ipsum occaecat
deserunt cupidatat aute. Enim cillum dolor et nulla sunt exercitation
non voluptate qui aliquip esse tempor. Ullamco ut sunt consectetur
sint qui qui do do qui do. Labore laborum culpa magna reprehenderit ea
velit id esse adipisicing deserunt amet dolore. Ipsum occaecat veniam
commodo proident aliqua id ad deserunt dolor aliquip duis veniam sunt.
</p>
</>
),
badge: "Launch Week",
image:
"https://images.unsplash.com/photo-1469474968028-56623f02e42e?auto=format&fit=crop&q=80&w=1200&ixlib=rb-4.0.3&ixid=M3wxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8fA%3D%3D",
},
];
Prompt
Build "Tracing Beam", a scroll animation. What it does: A gradient beam beside an article tracks how far the stage has been scrolled. Write it as a single self-contained React component in TypeScript that fills its parent (w-full h-full), styled with Tailwind CSS, using motion. Technique: the Motion library, inline SVG. It sits on a dark background, in a 16:10 frame. Respect prefers-reduced-motion with a still state, pause work when the element is off screen, and keep it accessible. Original: https://ui.aceternity.com/components/tracing-beam (Aceternity UI, Aceternity UI licence (free component)).