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webgl_loader_ttf.html
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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">
<style>
body {
font-family: Monospace;
background-color: #000;
color: #fff;
margin: 0px;
overflow: hidden;
}
#info {
position: absolute;
top: 10px;
width: 100%;
text-align: center;
z-index: 100;
display:block;
}
#info a {
color: #f00;
font-weight: bold;
text-decoration: underline;
cursor: pointer
}
</style>
</head>
<body>
<script src="../build/three.js"></script>
<script src="js/WebGL.js"></script>
<script src="js/loaders/TTFLoader.js"></script>
<script src="js/libs/opentype.min.js"></script>
<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>
if ( WEBGL.isWebGLAvailable() === false ) {
document.body.appendChild( WEBGL.getWebGLErrorMessage() );
}
var container;
var camera, cameraTarget, scene, renderer;
var group, textMesh1, textMesh2, textGeo, material;
var firstLetter = true;
var text = 'three.js',
height = 20,
size = 70,
hover = 30,
curveSegments = 4,
bevelThickness = 2,
bevelSize = 1.5;
var font = null;
var mirror = true;
var targetRotation = 0;
var targetRotationOnMouseDown = 0;
var mouseX = 0;
var mouseXOnMouseDown = 0;
var windowHalfX = window.innerWidth / 2;
init();
animate();
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
var dirLight = new THREE.DirectionalLight( 0xffffff, 0.125 );
dirLight.position.set( 0, 0, 1 ).normalize();
scene.add( dirLight );
var pointLight = new THREE.PointLight( 0xffffff, 1.5 );
pointLight.position.set( 0, 100, 90 );
pointLight.color.setHSL( Math.random(), 1, 0.5 );
scene.add( pointLight );
material = new THREE.MeshPhongMaterial( { color: 0xffffff, flatShading: true } );
group = new THREE.Group();
group.position.y = 100;
scene.add( group );
var loader = new THREE.TTFLoader();
loader.load( 'fonts/ttf/kenpixel.ttf', function ( json ) {
font = new THREE.Font( json );
createText();
} );
var plane = new THREE.Mesh(
new THREE.PlaneBufferGeometry( 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 );
container.appendChild( renderer.domElement );
// EVENTS
document.addEventListener( 'mousedown', onDocumentMouseDown, false );
document.addEventListener( 'touchstart', onDocumentTouchStart, false );
document.addEventListener( 'touchmove', onDocumentTouchMove, false );
document.addEventListener( 'keypress', onDocumentKeyPress, false );
document.addEventListener( 'keydown', onDocumentKeyDown, false );
window.addEventListener( 'resize', onWindowResize, false );
}
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 = '';
}
var keyCode = event.keyCode;
// backspace
if ( keyCode === 8 ) {
event.preventDefault();
text = text.substring( 0, text.length - 1 );
refreshText();
return false;
}
}
function onDocumentKeyPress( event ) {
var keyCode = event.which;
// backspace
if ( keyCode === 8 ) {
event.preventDefault();
} else {
var ch = String.fromCharCode( keyCode );
text += ch;
refreshText();
}
}
function createText() {
textGeo = new THREE.TextBufferGeometry( text, {
font: font,
size: size,
height: height,
curveSegments: curveSegments,
bevelThickness: bevelThickness,
bevelSize: bevelSize,
bevelEnabled: true
} );
textGeo.computeBoundingBox();
textGeo.computeVertexNormals();
var 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 = height;
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 onDocumentMouseDown( event ) {
event.preventDefault();
document.addEventListener( 'mousemove', onDocumentMouseMove, false );
document.addEventListener( 'mouseup', onDocumentMouseUp, false );
document.addEventListener( 'mouseout', onDocumentMouseOut, false );
mouseXOnMouseDown = event.clientX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
function onDocumentMouseMove( event ) {
mouseX = event.clientX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
}
function onDocumentMouseUp() {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentMouseOut() {
document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
}
function onDocumentTouchStart( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
targetRotationOnMouseDown = targetRotation;
}
}
function onDocumentTouchMove( event ) {
if ( event.touches.length === 1 ) {
event.preventDefault();
mouseX = event.touches[ 0 ].pageX - windowHalfX;
targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
}
}
function animate() {
requestAnimationFrame( animate );
group.rotation.y += ( targetRotation - group.rotation.y ) * 0.05;
camera.lookAt( cameraTarget );
renderer.render( scene, camera );
}
</script>
</body>
</html>