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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <title>three.js canvas - geometry - cube</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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+
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+ <script src="../build/three.min.js"></script>
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+
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+ <script src="js/libs/stats.min.js"></script>
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+
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+ <script>
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+
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+ var container, stats;
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+
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+ var camera, scene, renderer;
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+
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+ var cube, plane;
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+
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+ var targetRotation = 0;
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+ var targetRotationOnMouseDown = 0;
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+
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+ var mouseX = 0;
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+ var mouseXOnMouseDown = 0;
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+
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+ var windowHalfX = window.innerWidth / 2;
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+ var windowHalfY = window.innerHeight / 2;
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+
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+ init();
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+ animate();
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+
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+ function init() {
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+
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+ container = document.createElement( 'div' );
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+ document.body.appendChild( container );
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+
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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 = 'Drag to spin the cube';
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+ container.appendChild( info );
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+
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+ camera = new THREE.PerspectiveCamera( 70, 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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+
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+ scene = new THREE.Scene();
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+
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+ // Cube
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+
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+ console.time( 'box' );
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+
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+ var geometry = new THREE.BoxGeometry2( 200, 200, 200, 20, 20, 20 );
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+
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+ console.timeEnd( 'box' );
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+
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+ /*
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+ for ( var i = 0; i < geometry.faces.length; i += 2 ) {
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+
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+ var hex = Math.random() * 0xffffff;
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+ geometry.faces[ i ].color.setHex( hex );
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+ geometry.faces[ i + 1 ].color.setHex( hex );
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+
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+ }
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+ */
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+
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+ var material = new THREE.MeshBasicMaterial( { /*vertexColors: THREE.FaceColors,*/ overdraw: 0.5, wireframe: true } );
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+
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+ cube = new THREE.Mesh( geometry, material );
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+ cube.position.y = 150;
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+ scene.add( cube );
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+
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+ // Plane
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+
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+ console.time( 'plane' );
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+
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+ var geometry = new THREE.PlaneGeometry2( 200, 200, 20, 20 );
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+
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+ console.timeEnd( 'plane' );
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+
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+ geometry.applyMatrix( new THREE.Matrix4().makeRotationX( - Math.PI / 2 ) );
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+
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+ var material = new THREE.MeshBasicMaterial( { color: 0xff0000, overdraw: 0.5, wireframe: true } );
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+
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+ plane = new THREE.Mesh( geometry, material );
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+ scene.add( plane );
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+
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+ renderer = new THREE.CanvasRenderer();
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ container.appendChild( renderer.domElement );
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+
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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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+
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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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+
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+ window.addEventListener( 'resize', onWindowResize, false );
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+
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+ }
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+
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+ function onWindowResize() {
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+
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+ windowHalfX = window.innerWidth / 2;
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+ windowHalfY = window.innerHeight / 2;
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+
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+ camera.aspect = window.innerWidth / window.innerHeight;
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+ camera.updateProjectionMatrix();
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+
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+
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+ }
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+
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+ //
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+
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+ function onDocumentMouseDown( event ) {
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+
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+ event.preventDefault();
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+
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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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+
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+ mouseXOnMouseDown = event.clientX - windowHalfX;
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+ targetRotationOnMouseDown = targetRotation;
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+
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+ }
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+
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+ function onDocumentMouseMove( event ) {
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+
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+ mouseX = event.clientX - windowHalfX;
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+
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+ targetRotation = targetRotationOnMouseDown + ( mouseX - mouseXOnMouseDown ) * 0.02;
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+
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+ }
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+
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+ function onDocumentMouseUp( event ) {
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+
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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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+ }
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+
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+ function onDocumentMouseOut( event ) {
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+
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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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+ }
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+
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+ function onDocumentTouchStart( event ) {
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+
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+ if ( event.touches.length === 1 ) {
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+
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+ event.preventDefault();
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+
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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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+
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+ }
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+
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+ function onDocumentTouchMove( event ) {
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+
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+ if ( event.touches.length === 1 ) {
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+
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+ event.preventDefault();
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+
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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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+ }
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+
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+ //
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+
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+ function animate() {
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+
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+ requestAnimationFrame( animate );
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+
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+ render();
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+ stats.update();
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+
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+ }
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+
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+ function render() {
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+
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+ plane.rotation.y = cube.rotation.y += ( targetRotation - cube.rotation.y ) * 0.05;
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+ renderer.render( scene, camera );
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+
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+ }
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+
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+ </script>
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+
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+ </body>
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+</html>
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Mr.doob