How to create an awesome Image gallery using GSAP ScrollTrigger
Awesome Image gallery
Hello guys, In this article we will learn how to create an awesome Image gallery using GSAP ScrollTrigger
Step 1 — Creating a New Project
In this step, we need to create a new project folder and files(index.html, style.css, main.js) for creating an awesome image gallery. In the next step, you will start creating the structure of the webpage.
Step 2 — Setting Up the basic structure
In this step, we will add the HTML code to create the basic structure of the project.
See Also: Hulk Parallax Scrolling Effect
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>How to create an awesome Image gallery using GSAP ScrollTrigger</title>
<link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
</body>
</html>
This is the base structure of most web pages that use HTML.
Add the following code inside the <body> tag:
<div class="gallery-container">
<div class="gallery">
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer centerPiece">
<div class="galleryBlock centerBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
<div class="galleryLayer">
<div class="galleryBlock"></div>
</div>
</div>
</div>
In the next steps, we will add the JS library and main.js file
Step 3 — Add Gsap ScrollTrigger library and js file
<!-- Gsap ScrollTrigger-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.6.1/gsap.min.js"
integrity="sha512-cdV6j5t5o24hkSciVrb8Ki6FveC2SgwGfLE31+ZQRHAeSRxYhAQskLkq3dLm8ZcWe1N3vBOEYmmbhzf7NTtFFQ=="
crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/gsap/3.6.1/ScrollTrigger.min.js"
integrity="sha512-Q+G390ZU2qKo+e4q+kVcJknwfGjKJOdyu5mVMcR95NqL6XaF4lY4nsSvIVB3NDP54ACsS9rqhE1DVqgpApl//Q=="
crossorigin="anonymous" referrerpolicy="no-referrer"></script>
<!-- -->
<script src="main.js" charset="utf-8"></script>
Step 4 — Adding Styles for the Classes
In this step, we will add styles to the section class Inside style.css file
* {
padding: 0;
margin: 0;
}
body {
overflow-x: hidden;
}
.galleryBlock {
opacity: 0;
}
.gallery-container {
width: 100vw;
height: 400vh;
position: relative;
}
.gallery {
top: 0;
left: 0;
z-index: 1;
width: 70vw;
height: 60vw;
margin: 0 calc(100vw / 20 * 3);
position: absolute;
}
.galleryBlock {
background-size: cover;
background-color: darkgray;
}
.galleryLayer {
top: 0;
left: 0;
width: 100%;
height: 100%;
position: absolute;
will-change: transform;
transform-origin: 44.951% 50%;
}
.galleryLayer:nth-child(1) .galleryBlock {
top: 5vw;
left: 20vw;
width: 10vw;
height: 10vw;
}
.galleryLayer:nth-child(2) .galleryBlock {
top: 0;
left: 32.5vw;
width: 15vw;
height: 15vw;
}
.galleryLayer:nth-child(3) .galleryBlock {
left: 0;
top: 25vw;
width: 15vw;
height: 15vw;
}
.galleryLayer:nth-child(4) .galleryBlock {
top: 17.5vw;
left: 17.5vw;
width: 30vw;
height: 30vw;
}
.galleryLayer:nth-child(5) {
z-index: 1;
}
.galleryLayer:nth-child(5) .galleryBlock {
top: 20vw;
left: 50vw;
width: 5vw;
height: 5vw;
}
.galleryLayer:nth-child(6) .galleryBlock {
left: 50vw;
top: 27.5vw;
width: 20vw;
height: 20vw;
}
.galleryLayer:nth-child(7) .galleryBlock {
left: 10vw;
top: 42.5vw;
width: 5vw;
height: 5vw;
}
.galleryLayer:nth-child(8) .galleryBlock {
bottom: 5vw;
left: 42.5vw;
width: 5vw;
height: 5vw;
}
.galleryLayer:nth-child(9) .galleryBlock {
bottom: 0;
left: 50vw;
width: 10vw;
height: 10vw;
}
.galleryBlock {
display: block;
position: absolute;
}
@media only screen and (max-width: 580px) {
.galleryLayer:nth-child(6) .galleryBlock {
top: 43.889vw;
left: 73.889vw;
width: 26.389vw;
height: 26.389vw;
}
.galleryLayer:nth-child(7) .galleryBlock {
display: none;
}
.galleryLayer:nth-child(8) .galleryBlock {
display: none;
}
.galleryLayer:nth-child(9) .galleryBlock {
top: 73.889vw;
left: 58.889vw;
width: 15.278vw;
height: 15.278vw;
}
.galleryLayer:nth-child(1) .galleryBlock {
top: 11.111vw;
left: 23.889vw;
width: 15vw;
height: 15vw;
}
.gallery {
margin: 0;
width: 100vw;
height: 89.444vw;
}
.galleryLayer:nth-child(5) svg {
width: 4.722vw;
}
.galleryLayer:nth-child(5) .galleryBlock {
top: 23.889vw;
left: 73.889vw;
width: 15.278vw;
height: 15.278vw;
}
.galleryLayer:nth-child(4) .galleryBlock {
top: 30.278vw;
left: 30.278vw;
width: 39.444vw;
height: 39.444vw;
}
.galleryLayer:nth-child(2) .galleryBlock {
top: 0;
left: 43.333vw;
width: 26.389vw;
height: 26.389vw;
}
.galleryLayer:nth-child(3) .galleryBlock {
top: 30.278vw;
left: 0;
width: 26.389vw;
height: 26.389vw;
}
}
Step 5 — Adding Js Code
In the final step we have to do code for main.js
gsap.timeline({
scrollTrigger: {
trigger: ".gallery-container",
start: "top top",
end: () => innerHeight * 4,
scrub: true,
pin: ".gallery",
anticipatePin: 1
}
})
.set(".galleryBlock:not(.centerBlock)", { autoAlpha: 0 })
.to(".galleryBlock:not(.centerBlock)", { duration: 0.1, autoAlpha: 1 }, 0.001)
.from(".gallery-layer", {
scale: 3.333,
ease: "none"
})
const size = Math.max(innerWidth, innerHeight);
gsap.set('.galleryBlock', { backgroundImage: i => `url(https://picsum.photos/${size}/${size}?random=${i})` });
const bigImg = new Image;
bigImg.addEventListener("load", function () {
gsap.to(".center-layer .centerBlock", { autoAlpha: 1, duration: 0.5 });
});
bigImg.src = `https://picsum.photos/${size}/${size}?random=50`;