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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 webvr - ball shooter</title>
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+ <meta charset="utf-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
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+ <style>
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+ body {
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+ font-family: Monospace;
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+ background-color: #101010;
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+ color: #fff;
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+ margin: 0px;
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+ overflow: hidden;
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+ }
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+ a {
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+ color: #48f;
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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.js"></script>
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+ <script src="js/vr/WebVR.js"></script>
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+
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+ <script src="js/geometries/BoxLineGeometry.js"></script>
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+
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+ <script>
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+
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+ var container;
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+ var camera, scene, renderer;
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+
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+ var room;
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+
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+ var count = 0;
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+ var radius = 0.08;
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+ var normal = new THREE.Vector3();
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+ var relativeVelocity = new THREE.Vector3();
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+
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+ var clock = new THREE.Clock();
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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 = '<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> webvr - ball shooter';
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+ container.appendChild( info );
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+
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+ scene = new THREE.Scene();
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+ scene.background = new THREE.Color( 0x505050 );
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+
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+ camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );
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+
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+ room = new THREE.LineSegments(
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+ new THREE.BoxLineGeometry( 6, 6, 6, 10, 10, 10 ),
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+ new THREE.LineBasicMaterial( { color: 0x808080 } )
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+ );
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+ room.geometry.translate( 0, 3, 0 );
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+ scene.add( room );
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+
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+ var light = new THREE.HemisphereLight( 0xffffff, 0x444444 );
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+ light.position.set( 1, 1, 1 );
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+ scene.add( light );
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+
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+ var geometry = new THREE.IcosahedronBufferGeometry( radius );
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+
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+ for ( var i = 0; i < 2000; i ++ ) {
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+
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+ var object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );
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+
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+ object.position.x = Math.random() * 4 - 2;
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+ object.position.y = Math.random() * 4;
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+ object.position.z = Math.random() * 4 - 2;
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+
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+ object.userData.velocity = new THREE.Vector3();
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+ object.userData.velocity.x = 2 * Math.random() - 1;
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+ object.userData.velocity.y = 2 * Math.random() - 1;
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+ object.userData.velocity.z = 2 * Math.random() - 1;
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+
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+ room.add( object );
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+
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+ }
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+
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+ //
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+
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+ var canvas = document.createElement( 'canvas' );
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+ var context = canvas.getContext( 'webgl2', { antialias: false } );
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+
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+ renderer = new THREE.WebGLRenderer( { canvas: canvas, context: context } );
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+
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+ renderer.setPixelRatio( window.devicePixelRatio );
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+ renderer.setSize( window.innerWidth, window.innerHeight );
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+ renderer.vr.enabled = true;
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+ container.appendChild( renderer.domElement );
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+
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+ //
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+
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+ document.body.appendChild( WEBVR.createButton( renderer ) );
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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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+ 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 animate() {
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+
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+ renderer.setAnimationLoop( render );
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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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+ //
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+
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+ var delta = clock.getDelta();
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+
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+ var range = 3 - radius;
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+
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+ for ( var i = 0; i < room.children.length; i ++ ) {
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+
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+ var object = room.children[ i ];
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+
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+ object.position.x += object.userData.velocity.x * delta;
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+ object.position.y += object.userData.velocity.y * delta;
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+ object.position.z += object.userData.velocity.z * delta;
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+
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+ // keep objects inside room
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+
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+ if ( object.position.x < - range || object.position.x > range ) {
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+
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+ object.position.x = THREE.Math.clamp( object.position.x, - range, range );
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+ object.userData.velocity.x = - object.userData.velocity.x;
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+
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+ }
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+
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+ if ( object.position.y < radius || object.position.y > 6 ) {
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+
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+ object.position.y = Math.max( object.position.y, radius );
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+ object.userData.velocity.y = - object.userData.velocity.y;
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+
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+ }
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+
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+ if ( object.position.z < - range || object.position.z > range ) {
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+
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+ object.position.z = THREE.Math.clamp( object.position.z, - range, range );
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+ object.userData.velocity.z = - object.userData.velocity.z;
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+
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+ }
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+
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+ }
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+
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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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+ </body>
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+</html>
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Fernando Serrano