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webgl_loader_texture_lottie.html
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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js webgl - lottie loader</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - lottie<br/></br>
<input id="scrubber" type="range" value="0" style="width: 300px">
</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/[email protected]/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { RoomEnvironment } from 'three/addons/environments/RoomEnvironment.js';
import { RoundedBoxGeometry } from 'three/addons/geometries/RoundedBoxGeometry.js';
import { LottieLoader } from 'three/addons/loaders/LottieLoader.js';
let renderer, scene, camera;
let mesh;
init();
animate();
function init() {
camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 0.1, 10 );
camera.position.z = 2.5;
scene = new THREE.Scene();
scene.background = new THREE.Color( 0x111111 );
const loader = new LottieLoader();
loader.setQuality( 2 );
loader.load( 'textures/lottie/24017-lottie-logo-animation.json', function ( texture ) {
setupControls( texture.animation );
// texture = new THREE.TextureLoader().load( 'textures/uv_grid_directx.jpg' );
const geometry = new RoundedBoxGeometry( 1, 1, 1, 7, 0.2 );
const material = new THREE.MeshStandardMaterial( { roughness: 0.1, map: texture } );
mesh = new THREE.Mesh( geometry, material );
scene.add( mesh );
} );
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
const environment = new RoomEnvironment();
const pmremGenerator = new THREE.PMREMGenerator( renderer );
scene.environment = pmremGenerator.fromScene( environment ).texture;
//
window.addEventListener( 'resize', onWindowResize );
}
function setupControls( animation ) {
// Lottie animation API
// https://airbnb.io/lottie/#/web
// There are a few undocumented properties:
// console.log( animation );
const scrubber = document.getElementById( 'scrubber' );
scrubber.max = animation.totalFrames;
scrubber.addEventListener( 'pointerdown', function () {
animation.pause();
} );
scrubber.addEventListener( 'pointerup', function () {
animation.play();
} );
scrubber.addEventListener( 'input', function () {
animation.goToAndStop( parseFloat( scrubber.value ), true );
} );
animation.addEventListener( 'enterFrame', function () {
scrubber.value = animation.currentFrame;
} );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function animate() {
requestAnimationFrame( animate );
if ( mesh ) {
mesh.rotation.y -= 0.001;
}
renderer.render( scene, camera );
}
</script>
</body>
</html>