/examples/webgl_geometry_text.html
HTML | 637 lines | 394 code | 241 blank | 2 comment | 0 complexity | 72c5a5f96c0d13c21260a464eb037bba MD5 | raw file
- <!DOCTYPE HTML>
- <html lang="en">
- <head>
- <title>three.js webgl - geometry - text</title>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"/>
- <style type="text/css">
- 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, .button { color: #f00; font-weight: bold; text-decoration: underline; cursor: pointer }
- </style>
- </head>
- <body>
- <div id="info">
- <a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - procedural 3D text by <a href="http://www.lab4games.net/zz85/blog" target="_blank">zz85</a> & alteredq
- (fonts from <a href="http://typeface.neocracy.org/">typeface.js</a> and <a href="http://en.wikipedia.org/wiki/Droid_%28font%29">Droid</a>)
- <br/>type to enter new text, drag to spin the text
- <br/><span class="button" id="color">change color</span>,
- <span class="button" id="font">change font</span>,
- <span class="button" id="weight">change weight</span>,
- <span class="button" id="bevel">change bevel</span>,
- <span class="button" id="bend">bend</span>,
- <span class="button" id="postprocessing">change postprocessing</span>,
- <a id="permalink" href="#">permalink</a>
- </div>
- <script type="text/javascript" src="../build/Three.js"></script>
- <script type="text/javascript" src="js/ShaderExtras.js"></script>
- <script type="text/javascript" src="js/postprocessing/EffectComposer.js"></script>
- <script type="text/javascript" src="js/postprocessing/RenderPass.js"></script>
- <script type="text/javascript" src="js/postprocessing/ShaderPass.js"></script>
- <script type="text/javascript" src="js/postprocessing/MaskPass.js"></script>
- <script type="text/javascript" src="js/postprocessing/BloomPass.js"></script>
- <script type="text/javascript" src="js/postprocessing/FilmPass.js"></script>
- <script type="text/javascript" src="js/Detector.js"></script>
- <script type="text/javascript" src="js/RequestAnimationFrame.js"></script>
- <script type="text/javascript" src="js/Stats.js"></script>
- <!-- load the font files -->
- <script type="text/javascript" src="fonts/gentilis_bold.typeface.js"></script>
- <script type="text/javascript" src="fonts/gentilis_regular.typeface.js"></script>
- <script type="text/javascript" src="fonts/optimer_bold.typeface.js"></script>
- <script type="text/javascript" src="fonts/optimer_regular.typeface.js"></script>
- <script type="text/javascript" src="fonts/helvetiker_bold.typeface.js"></script>
- <script type="text/javascript" src="fonts/helvetiker_regular.typeface.js"></script>
- <script type="text/javascript" src="fonts/droid/droid_sans_regular.typeface.js"></script>
- <script type="text/javascript" src="fonts/droid/droid_sans_bold.typeface.js"></script>
- <script type="text/javascript" src="fonts/droid/droid_serif_regular.typeface.js"></script>
- <script type="text/javascript" src="fonts/droid/droid_serif_bold.typeface.js"></script>
- <!-- todo async loader for fonts -->
- <script type="text/javascript">
- if ( ! Detector.webgl ) Detector.addGetWebGLMessage();
- var container, stats, permalink, hex, color;
- var camera, scene, renderer;
- var composer;
- var textMesh1, textMesh2, textGeo, faceMaterial, textMaterialFront, textMaterialSide, parent;
- var firstLetter = true;
- var text = "three.js",
- height = 20,
- size = 70,
- hover = 30,
- curveSegments = 4,
- bevelThickness = 2,
- bevelSize = 1.5,
- bevelSegments = 3,
- bevelEnabled = true,
- bend = true,
- font = "optimer", // helvetiker, optimer, gentilis, droid sans, droid serif
- weight = "bold", // normal bold
- style = "normal"; // normal italic
- var mirror = true;
- var fontMap = {
- "helvetiker" : 0,
- "optimer" : 1,
- "gentilis" : 2,
- "droid sans" : 3,
- "droid serif" : 4
- };
- var weightMap = {
- "normal" : 0,
- "bold" : 1
- }
- var reverseFontMap = {};
- var reverseWeightMap = {};
- for ( var i in fontMap ) reverseFontMap[ fontMap[i] ] = i;
- for ( var i in weightMap ) reverseWeightMap[ weightMap[i] ] = i;
- var targetRotation = 0;
- var targetRotationOnMouseDown = 0;
- var mouseX = 0;
- var mouseXOnMouseDown = 0;
- var windowHalfX = window.innerWidth / 2;
- var windowHalfY = window.innerHeight / 2;
- var postprocessing = { enabled : false };
- var glow = 0.9;
- init();
- animate();
- function capitalize( txt ) {
- return txt.substring( 0, 1 ).toUpperCase() + txt.substring( 1 );
- }
- function decimalToHex( d ) {
- var hex = Number( d ).toString( 16 );
- hex = "000000".substr( 0, 6 - hex.length ) + hex;
- return hex.toUpperCase();
- }
- function init() {
- container = document.createElement( 'div' );
- document.body.appendChild( container );
- permalink = document.getElementById( "permalink" );
- // CAMERA
- camera = new THREE.Camera( 30, window.innerWidth / window.innerHeight, 1, 1500 );
- camera.position.y = 400;
- camera.position.z = 700;
- camera.target.position.y = 100;
- // SCENE
- scene = new THREE.Scene();
- scene.fog = new THREE.Fog( 0x000000, 250, 1400 );
- var dirLight = new THREE.DirectionalLight( 0xffffff, 0.125 );
- dirLight.position.set( 0, 0, 1 );
- dirLight.position.normalize();
- scene.addLight( dirLight );
- var pointLight = new THREE.PointLight( 0xffffff, 1.5 );
- pointLight.position.set( 0, 100, 90 );
- scene.addLight( pointLight );
- //text = capitalize( font ) + " " + capitalize( weight );
- //text = "abcdefghijklmnopqrstuvwxyz0123456789";
- //text = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
- // Get text from hash
- var hash = document.location.hash.substr( 1 );
- if ( hash.length !== 0 ) {
- var colorhash = hash.substring( 0, 6 );
- var fonthash = hash.substring( 6, 7 );
- var weighthash = hash.substring( 7, 8 );
- var pphash = hash.substring( 8, 9 );
- var bevelhash = hash.substring( 9, 10 );
- var bendhash = hash.substring( 10, 11 );
- var texthash = hash.substring( 12 );
- hex = colorhash;
- pointLight.color.setHex( parseInt( colorhash, 16 ) );
- font = reverseFontMap[ parseInt( fonthash ) ];
- weight = reverseWeightMap[ parseInt( weighthash ) ];
- postprocessing.enabled = parseInt( pphash );
- bevelEnabled = parseInt( bevelhash );
- bend = parseInt( bendhash );
- text = decodeURI( texthash );
- updatePermalink();
- } else {
- pointLight.color.setHSV( Math.random(), 0.95, 0.85 );
- hex = decimalToHex( pointLight.color.getHex() );
- }
- faceMaterial = new THREE.MeshFaceMaterial();
- textMaterialFront = new THREE.MeshPhongMaterial( { color: 0xffffff, shading: THREE.FlatShading } );
- textMaterialSide = new THREE.MeshPhongMaterial( { color: 0xffffff, shading: THREE.SmoothShading } );
- parent = new THREE.Object3D();
- parent.position.y = 100;
- scene.addChild( parent );
- createText();
- var plane = new THREE.Mesh( new THREE.PlaneGeometry( 10000, 10000 ), new THREE.MeshBasicMaterial( { color: 0xffffff, opacity: 0.5, transparent: true } ) );
- plane.rotation.x = -1.57;
- plane.position.y = 100;
- scene.addChild( plane );
- // RENDERER
- renderer = new THREE.WebGLRenderer( { antialias: true } );
- renderer.setSize( window.innerWidth, window.innerHeight );
- renderer.setClearColor( scene.fog.color, 1 );
- container.appendChild( renderer.domElement );
- // STATS
- stats = new Stats();
- stats.domElement.style.position = 'absolute';
- stats.domElement.style.top = '0px';
- //container.appendChild( stats.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 );
- document.getElementById( "color" ).addEventListener( 'click', function() {
- pointLight.color.setHSV( Math.random(), 0.95, 0.85 );
- hex = decimalToHex( pointLight.color.getHex() );
- updatePermalink();
- }, false );
- document.getElementById( "font" ).addEventListener( 'click', function() {
- if ( font == "helvetiker" ) {
- font = "optimer";
- } else if ( font == "optimer" ) {
- font = "gentilis";
- } else if ( font == "gentilis" ) {
- font = "droid sans";
- } else if ( font == "droid sans" ) {
- font = "droid serif";
- } else {
- font = "helvetiker";
- }
- refreshText();
- }, false );
- document.getElementById( "weight" ).addEventListener( 'click', function() {
- if ( weight == "bold" ) {
- weight = "normal";
- } else {
- weight = "bold";
- }
- refreshText();
- }, false );
- document.getElementById( "bevel" ).addEventListener( 'click', function() {
- bevelEnabled = !bevelEnabled;
- refreshText();
- }, false );
- document.getElementById( "bend" ).addEventListener( 'click', function() {
- bend = !bend;
- refreshText();
- }, false );
- document.getElementById( "postprocessing" ).addEventListener( 'click', function() {
- postprocessing.enabled = !postprocessing.enabled;
- updatePermalink();
- }, false );
- // POSTPROCESSING
- renderer.autoClear = false;
- var renderModel = new THREE.RenderPass( scene, camera );
- var effectBloom = new THREE.BloomPass( 0.25 );
- var effectFilm = new THREE.FilmPass( 0.5, 0.125, 2048, false );
- effectFilm.renderToScreen = true;
- composer = new THREE.EffectComposer( renderer );
- composer.addPass( renderModel );
- composer.addPass( effectBloom );
- composer.addPass( effectFilm );
- }
- //
- function boolToNum( b ) {
- return b ? 1 : 0;
- }
- function updatePermalink() {
- var link = hex + fontMap[ font ] + weightMap[ weight ] + boolToNum( postprocessing.enabled ) + boolToNum( bevelEnabled )
- + boolToNum( bend ) + "#" + encodeURI( text );
- permalink.href = "#" + link;
- window.location.hash = link;
- }
- 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.TextGeometry( text, {
- size: size,
- height: height,
- curveSegments: curveSegments,
- font: font,
- weight: weight,
- style: style,
- bevelThickness: bevelThickness,
- bevelSize: bevelSize,
- bevelEnabled: bevelEnabled,
- bend: bend,
- material: textMaterialFront,
- extrudeMaterial: textMaterialSide
- });
- textGeo.computeBoundingBox();
- textGeo.computeVertexNormals();
- // "fix" side normals by removing z-component of normals for side faces
- // (this doesn't work well for beveled geometry as then we lose nice curvature around z-axis)
- if ( ! bevelEnabled ) {
- var triangleAreaHeuristics = 0.1 * ( height * size );
- for ( var i = 0; i < textGeo.faces.length; i ++ ) {
- var face = textGeo.faces[ i ];
- if ( face.materials[ 0 ].id == textMaterialSide.id ) {
- for ( var j = 0; j < face.vertexNormals.length; j ++ ) {
- face.vertexNormals[ j ].z = 0;
- face.vertexNormals[ j ].normalize();
- }
- var va = textGeo.vertices[ face.a ].position;
- var vb = textGeo.vertices[ face.b ].position;
- var vc = textGeo.vertices[ face.c ].position;
- var s = THREE.GeometryUtils.triangleArea( va, vb, vc );
- if ( s > triangleAreaHeuristics ) {
- for ( var j = 0; j < face.vertexNormals.length; j ++ ) {
- face.vertexNormals[ j ].copy( face.normal );
- }
- }
- }
- }
- }
- var centerOffset = -0.5 * ( textGeo.boundingBox.x[ 1 ] - textGeo.boundingBox.x[ 0 ] );
- textMesh1 = new THREE.Mesh( textGeo, faceMaterial );
- textMesh1.position.x = centerOffset;
- textMesh1.position.y = hover;
- textMesh1.position.z = 0;
- textMesh1.rotation.x = 0;
- textMesh1.rotation.y = Math.PI * 2;
- parent.addChild( textMesh1 );
- if ( mirror ) {
- textMesh2 = new THREE.Mesh( textGeo, faceMaterial );
- textMesh2.position.x = centerOffset;
- textMesh2.position.y = -hover;
- textMesh2.position.z = height;
- textMesh2.rotation.x = Math.PI;
- textMesh2.rotation.y = Math.PI * 2;
- parent.addChild( textMesh2 );
- }
- }
- function refreshText() {
- updatePermalink();
- scene.removeChild( textMesh1 );
- if ( mirror ) scene.removeChild( 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( event ) {
- document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
- document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
- document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
- }
- function onDocumentMouseOut( event ) {
- 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 );
- render();
- stats.update();
- }
- var delta, time, oldTime;
- function render() {
- if ( ! oldTime ) oldTime = new Date().getTime();
- time = new Date().getTime();
- delta = 0.1 * ( time - oldTime );
- oldTime = time;
- parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
- renderer.clear();
- if ( postprocessing.enabled ) {
- composer.render( 0.05 );
- } else {
- renderer.render( scene, camera );
- }
- }
- </script>
- </body>
- </html>