Added LottieLoader

887a0d60 · Mr.doob · e99f3e5e · 887a0d60 · 887a0d60 · 887a0d60
7 changed file
--- a/examples/files.json
+++ b/examples/files.json
@@ -119,6 +119,7 @@
 		"webgl_loader_texture_hdr",
 		"webgl_loader_texture_ktx",
 		"webgl_loader_texture_ktx2",
+		"webgl_loader_texture_lottie",
 		"webgl_loader_texture_pvrtc",
 		"webgl_loader_texture_rgbm",
 		"webgl_loader_texture_tga",

--- a/examples/js/libs/lottie_canvas.js
+++ b/examples/js/libs/lottie_canvas.js
--- a/examples/jsm/loaders/LottieLoader.d.ts
+++ b/examples/jsm/loaders/LottieLoader.d.ts
+import {
+	CanvasTexture,
+	Loader,
+	LoadingManager
+} from '../../../src/Three';
+
+export class LottieLoader extends Loader {
+
+	constructor( manager?: LoadingManager );
+
+	load( url: string, onLoad: ( texture: CanvasTexture ) => void, onProgress?: ( event: ProgressEvent ) => void, onError?: ( event: ErrorEvent ) => void ) : void;
+
+}
--- a/examples/jsm/loaders/LottieLoader.js
+++ b/examples/jsm/loaders/LottieLoader.js
+import {
+	FileLoader,
+	Loader,
+	CanvasTexture
+} from "../../../build/three.module.js";
+
+var LottieLoader = function ( manager ) {
+
+	Loader.call( this, manager );
+
+};
+
+LottieLoader.prototype = Object.assign( Object.create( Loader.prototype ), {
+
+	constructor: LottieLoader,
+
+	load: function ( url, onLoad, onProgress, onError ) {
+
+		const texture = new CanvasTexture();
+
+		const loader = new FileLoader( this.manager );
+		loader.setPath( this.path );
+		loader.setWithCredentials( this.withCredentials );
+
+		loader.load( url, function ( text ) {
+
+			const data = JSON.parse( text );
+
+			// bodymoving uses container.offetWidth and offsetHeight
+			// to define width/height
+
+			const container = document.createElement( 'div' );
+			container.style.width = data.w + 'px';
+			container.style.height = data.h + 'px';
+			document.body.appendChild( container );
+
+			const animation = bodymovin.loadAnimation( {
+				container: container,
+				animType: 'canvas',
+				loop: true,
+				autoplay: true,
+				animationData: data,
+				rendererSettings: { dpr: 1 }
+			} );
+
+			texture.animation = animation;
+			texture.image = animation.container;
+
+			animation.addEventListener( 'enterFrame', function () {
+
+				texture.needsUpdate = true;
+
+			} );
+
+			container.style.display = 'none';
+
+			if ( onLoad !== undefined ) {
+
+				onLoad( texture );
+
+			}
+
+		}, onProgress, onError );
+
+		return texture;
+
+	}
+
+} );
+
+export { LottieLoader };
--- a/examples/screenshots/webgl_loader_texture_lottie.jpg
+++ b/examples/screenshots/webgl_loader_texture_lottie.jpg
--- a/examples/textures/lottie/24017-lottie-logo-animation.json
+++ b/examples/textures/lottie/24017-lottie-logo-animation.json
--- a/examples/webgl_loader_texture_lottie.html
+++ b/examples/webgl_loader_texture_lottie.html
+<!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="http://threejs.org" target="_blank" rel="noopener">three.js</a> webgl - lottie<br/></br>
+			<input id="scrubber" type="range" value="0" style="width: 300px">
+		</div>
+
+		<script src="js/libs/lottie_canvas.js"></script>
+
+		<script type="module">
+
+			import * as THREE from '../build/three.module.js';
+			import { LottieLoader } from './jsm/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 = 3;
+
+				scene = new THREE.Scene();
+				scene.background = new THREE.Color( 0x222222 );
+
+				//
+
+				const loader = new LottieLoader();
+				loader.load( 'textures/lottie/24017-lottie-logo-animation.json', function ( texture ) {
+
+					setupControls( texture.animation );
+
+					const geometry = new THREE.BoxBufferGeometry();
+					const material = new THREE.MeshBasicMaterial( { 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 );
+
+				//
+
+				window.addEventListener( 'resize', onWindowResize, false );
+
+			}
+
+			function setupControls( animation ) {
+
+				// 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.updateProjectionMatrix();
+
+				renderer.setSize( window.innerWidth, window.innerHeight );
+
+			}
+
+			//
+
+			function animate() {
+
+				requestAnimationFrame( animate );
+
+				if ( mesh ) {
+
+					mesh.rotation.x += 0.001;
+					mesh.rotation.y += 0.01;
+
+				}
+
+				renderer.render( scene, camera );
+
+			}
+
+		</script>
+	</body>
+</html>