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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>three.js webgl - loader - ttf</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> - TTFLoader using opentype by gero3
- <br/>type to enter new text, drag to spin the text
- </div>
- <script type="importmap">
- {
- "imports": {
- "three": "../build/three.module.js",
- "three/addons/": "./jsm/"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- import { TTFLoader } from 'three/addons/loaders/TTFLoader.js';
- import { Font } from 'three/addons/loaders/FontLoader.js';
- import { TextGeometry } from 'three/addons/geometries/TextGeometry.js';
- let container;
- let camera, cameraTarget, scene, renderer;
- let group, textMesh1, textMesh2, textGeo, material;
- let firstLetter = true;
- let text = 'three.js';
- const depth = 20,
- size = 70,
- hover = 30,
- curveSegments = 4,
- bevelThickness = 2,
- bevelSize = 1.5;
- let font = null;
- const mirror = true;
- let targetRotation = 0;
- let targetRotationOnPointerDown = 0;
- let pointerX = 0;
- let pointerXOnPointerDown = 0;
- let windowHalfX = window.innerWidth / 2;
- init();
- function init() {
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- // CAMERA
- camera = new THREE.PerspectiveCamera( 30, window.innerWidth / window.innerHeight, 1, 1500 );
- camera.position.set( 0, 400, 700 );
- cameraTarget = new THREE.Vector3( 0, 150, 0 );
- // SCENE
- scene = new THREE.Scene();
- scene.background = new THREE.Color( 0x000000 );
- scene.fog = new THREE.Fog( 0x000000, 250, 1400 );
- // LIGHTS
- const dirLight1 = new THREE.DirectionalLight( 0xffffff, 0.4 );
- dirLight1.position.set( 0, 0, 1 ).normalize();
- scene.add( dirLight1 );
- const dirLight2 = new THREE.DirectionalLight( 0xffffff, 2 );
- dirLight2.position.set( 0, hover, 10 ).normalize();
- dirLight2.color.setHSL( Math.random(), 1, 0.5, THREE.SRGBColorSpace );
- scene.add( dirLight2 );
- material = new THREE.MeshPhongMaterial( { color: 0xffffff, flatShading: true } );
- group = new THREE.Group();
- group.position.y = 100;
- scene.add( group );
- const loader = new TTFLoader();
- loader.load( 'fonts/ttf/kenpixel.ttf', function ( json ) {
- font = new Font( json );
- createText();
- } );
- const plane = new THREE.Mesh(
- new THREE.PlaneGeometry( 10000, 10000 ),
- new THREE.MeshBasicMaterial( { color: 0xffffff, opacity: 0.5, transparent: true } )
- );
- plane.position.y = 100;
- plane.rotation.x = - Math.PI / 2;
- scene.add( plane );
- // RENDERER
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setPixelRatio( window.devicePixelRatio );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setAnimationLoop( animate );
- container.appendChild( renderer.domElement );
- // EVENTS
- container.style.touchAction = 'none';
- container.addEventListener( 'pointerdown', onPointerDown );
- document.addEventListener( 'keypress', onDocumentKeyPress );
- document.addEventListener( 'keydown', onDocumentKeyDown );
- window.addEventListener( 'resize', onWindowResize );
- }
- function onWindowResize() {
- windowHalfX = window.innerWidth / 2;
- camera.aspect = window.innerWidth / window.innerHeight;
- camera.updateProjectionMatrix();
- renderer.setSize( window.innerWidth, window.innerHeight );
- }
- function onDocumentKeyDown( event ) {
- if ( firstLetter ) {
- firstLetter = false;
- text = '';
- }
- const keyCode = event.keyCode;
- // backspace
- if ( keyCode === 8 ) {
- event.preventDefault();
- text = text.substring( 0, text.length - 1 );
- refreshText();
- return false;
- }
- }
- function onDocumentKeyPress( event ) {
- const keyCode = event.which;
- // backspace
- if ( keyCode === 8 ) {
- event.preventDefault();
- } else {
- const ch = String.fromCharCode( keyCode );
- text += ch;
- refreshText();
- }
- }
- function createText() {
- textGeo = new TextGeometry( text, {
- font: font,
- size: size,
- depth: depth,
- curveSegments: curveSegments,
- bevelThickness: bevelThickness,
- bevelSize: bevelSize,
- bevelEnabled: true
- } );
- textGeo.computeBoundingBox();
- textGeo.computeVertexNormals();
- const centerOffset = - 0.5 * ( textGeo.boundingBox.max.x - textGeo.boundingBox.min.x );
- textMesh1 = new THREE.Mesh( textGeo, material );
- textMesh1.position.x = centerOffset;
- textMesh1.position.y = hover;
- textMesh1.position.z = 0;
- textMesh1.rotation.x = 0;
- textMesh1.rotation.y = Math.PI * 2;
- group.add( textMesh1 );
- if ( mirror ) {
- textMesh2 = new THREE.Mesh( textGeo, material );
- textMesh2.position.x = centerOffset;
- textMesh2.position.y = - hover;
- textMesh2.position.z = depth;
- textMesh2.rotation.x = Math.PI;
- textMesh2.rotation.y = Math.PI * 2;
- group.add( textMesh2 );
- }
- }
- function refreshText() {
- group.remove( textMesh1 );
- if ( mirror ) group.remove( textMesh2 );
- if ( ! text ) return;
- createText();
- }
- function onPointerDown( event ) {
- if ( event.isPrimary === false ) return;
- pointerXOnPointerDown = event.clientX - windowHalfX;
- targetRotationOnPointerDown = targetRotation;
- document.addEventListener( 'pointermove', onPointerMove );
- document.addEventListener( 'pointerup', onPointerUp );
- }
- function onPointerMove( event ) {
- if ( event.isPrimary === false ) return;
- pointerX = event.clientX - windowHalfX;
- targetRotation = targetRotationOnPointerDown + ( pointerX - pointerXOnPointerDown ) * 0.02;
- }
- function onPointerUp() {
- if ( event.isPrimary === false ) return;
- document.removeEventListener( 'pointermove', onPointerMove );
- document.removeEventListener( 'pointerup', onPointerUp );
- }
- //
- function animate() {
- group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
- camera.lookAt( cameraTarget );
- renderer.render( scene, camera );
- }
- </script>
- </body>
- </html>
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