mirror of
https://github.com/wahyd4/three.js.git
synced 2026-08-09 04:56:01 +10:00
212 lines
4.9 KiB
HTML
212 lines
4.9 KiB
HTML
<!doctype html>
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<html lang="en">
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<head>
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<title>three.js canvas - geometry - text</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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<style>
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body {
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font-family: Monospace;
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background-color: #f0f0f0;
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margin: 0px;
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overflow: hidden;
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}
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</style>
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</head>
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<body>
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<script src="../build/Three.js"></script>
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<script src="js/RequestAnimationFrame.js"></script>
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<script src="js/Stats.js"></script>
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<!-- load the font file from canvas-text -->
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<script src="fonts/helvetiker_regular.typeface.js"></script>
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<script>
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var container, stats;
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var camera, scene, renderer;
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var text, plane;
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var targetRotation = 0;
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var targetRotationOnMouseDown = 0;
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var mouseX = 0;
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var mouseXOnMouseDown = 0;
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var windowHalfX = window.innerWidth / 2;
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var windowHalfY = window.innerHeight / 2;
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init();
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animate();
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function init() {
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container = document.createElement( 'div' );
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document.body.appendChild( container );
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var info = document.createElement( 'div' );
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info.style.position = 'absolute';
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info.style.top = '10px';
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info.style.width = '100%';
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info.style.textAlign = 'center';
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info.innerHTML = 'Simple Dynamic 3D Text Example by <a href="http://www.lab4games.net/zz85/blog">zz85</a><br/>Drag to spin the text';
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container.appendChild( info );
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camera = new THREE.PerspectiveCamera( 50, window.innerWidth / window.innerHeight, 1, 1000 );
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camera.position.y = 150;
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camera.position.z = 500;
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scene = new THREE.Scene();
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// Get text from hash
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var theText = "Hello three.js! :)";
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var hash = document.location.hash.substr( 1 );
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if ( hash.length !== 0 ) {
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theText = hash;
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}
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var text3d = new THREE.TextGeometry( theText, {
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size: 80,
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height: 20,
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curveSegments: 2,
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font: "helvetiker"
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});
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text3d.computeBoundingBox();
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var centerOffset = -0.5 * ( text3d.boundingBox.x[ 1 ] - text3d.boundingBox.x[ 0 ] );
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var textMaterial = new THREE.MeshBasicMaterial( { color: Math.random() * 0xffffff, overdraw: true } );
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text = new THREE.Mesh( text3d, textMaterial );
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text.doubleSided = false;
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text.position.x = centerOffset;
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text.position.y = 100;
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text.position.z = 0;
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text.rotation.x = 0;
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text.rotation.y = Math.PI * 2;
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parent = new THREE.Object3D();
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parent.add( text );
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scene.add( parent );
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renderer = new THREE.CanvasRenderer();
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renderer.setSize( window.innerWidth, window.innerHeight );
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container.appendChild( renderer.domElement );
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stats = new Stats();
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stats.domElement.style.position = 'absolute';
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stats.domElement.style.top = '0px';
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container.appendChild( stats.domElement );
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document.addEventListener( 'mousedown', onDocumentMouseDown, false );
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document.addEventListener( 'touchstart', onDocumentTouchStart, false );
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document.addEventListener( 'touchmove', onDocumentTouchMove, false );
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}
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//
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function onDocumentMouseDown( event ) {
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event.preventDefault();
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document.addEventListener( 'mousemove', onDocumentMouseMove, false );
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document.addEventListener( 'mouseup', onDocumentMouseUp, false );
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document.addEventListener( 'mouseout', onDocumentMouseOut, false );
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mouseXOnMouseDown = event.clientX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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function onDocumentMouseMove( event ) {
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mouseX = event.clientX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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}
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function onDocumentMouseUp( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentMouseOut( event ) {
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document.removeEventListener( 'mousemove', onDocumentMouseMove, false );
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document.removeEventListener( 'mouseup', onDocumentMouseUp, false );
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document.removeEventListener( 'mouseout', onDocumentMouseOut, false );
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}
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function onDocumentTouchStart( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseXOnMouseDown = event.touches[ 0 ].pageX - windowHalfX;
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targetRotationOnMouseDown = targetRotation;
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}
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}
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function onDocumentTouchMove( event ) {
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if ( event.touches.length == 1 ) {
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event.preventDefault();
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mouseX = event.touches[ 0 ].pageX - windowHalfX;
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targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.05;
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}
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}
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//
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function animate() {
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requestAnimationFrame( animate );
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render();
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stats.update();
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}
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function render() {
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parent.rotation.y += ( targetRotation - parent.rotation.y ) * 0.05;
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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