samien
/
three.js
mirror de https://github.com/mrdoob/three.js.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307
							<!DOCTYPE html>
<html lang="en">
	<head>
		<title>three.js webvr - ball shooter with multiview</title>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
		<style>
			body {
				font-family: Monospace;
				background-color: #101010;
				color: #fff;
				margin: 0px;
				overflow: hidden;
			}
			a {
				color: #48f;
			}
		</style>
	</head>
	<body>

		<script src="../build/three.js"></script>
		<script src="js/vr/WebVR.js"></script>

		<script src="js/geometries/BoxLineGeometry.js"></script>

		<script>

			var container;
			var ms;

			var camera, scene, renderer;
			var controller1, controller2;

			var avgCounter = new Array(240, 0);

			var room;

			var count = 0;
			var radius = 0.08;
			var normal = new THREE.Vector3();
			var relativeVelocity = new THREE.Vector3();

			var clock = new THREE.Clock();

			init();
			animate();

			function init() {

				container = document.createElement( 'div' );
				document.body.appendChild( container );

				const urlParams = new URLSearchParams(window.location.search);
				const multiview = urlParams.has('enableMultiview');

				scene = new THREE.Scene();
				scene.background = new THREE.Color( 0x505050 );

				camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.1, 10 );

				room = new THREE.LineSegments(
					new THREE.BoxLineGeometry( 6, 6, 6, 10, 10, 10 ),
					new THREE.LineBasicMaterial( { color: 0x808080 } )
				);
				room.geometry.translate( 0, 3, 0 );
				scene.add( room );

				var light = new THREE.HemisphereLight( 0xffffff, 0x444444 );
				light.position.set( 1, 1, 1 );
				scene.add( light );

				var geometry = new THREE.IcosahedronBufferGeometry( radius, 2 );

				var numObjects = urlParams.get('num') || 200;

				for ( var i = 0; i < numObjects; i ++ ) {

					var object = new THREE.Mesh( geometry, new THREE.MeshLambertMaterial( { color: Math.random() * 0xffffff } ) );

					object.position.x = Math.random() * 4 - 2;
					object.position.y = Math.random() * 4;
					object.position.z = Math.random() * 4 - 2;

					object.userData.velocity = new THREE.Vector3();
					object.userData.velocity.x = Math.random() * 0.01 - 0.005;
					object.userData.velocity.y = Math.random() * 0.01 - 0.005;
					object.userData.velocity.z = Math.random() * 0.01 - 0.005;

					room.add( object );

				}

				//

				var canvas = document.createElement( 'canvas' );
				var context = canvas.getContext( 'webgl2', { antialias: false } );
				renderer = new THREE.WebGLRenderer( { canvas: canvas, context: context, multiview: multiview } );
				renderer.setPixelRatio( window.devicePixelRatio );
				renderer.setSize( window.innerWidth, window.innerHeight );
				renderer.vr.enabled = true;
				container.appendChild( renderer.domElement );

				//

				var info = document.createElement( 'div' );
				info.style.position = 'absolute';
				info.style.top = '10px';
				info.style.width = '100%';
				info.style.textAlign = 'center';

				function colorize( value ) {

					return value ? '<b style="color:#3f3">true</b>' : '<b style="color:#f33">false</b>';

				}

				function addNumLink( value ) {

					return `<a href="?num=${ value }&${!multiview ? '' : 'enableMultiview'}">${ value }</a>`;

				}

				info.innerHTML = '<b>OVR_multiview2</b> demo<br/>requested: ' + colorize( multiview ) + ` <a href="?num=${ numObjects }&${ multiview ? '' : 'enableMultiview' }">toggle</a>`
					+ `<br/>available: ${ colorize( renderer.multiview.isAvailable() ) }<br/>enabled: ${ colorize( renderer.multiview.isEnabled() ) }<br/>
						${addNumLink(200)}
						${addNumLink(500)}
						${addNumLink(1000)}
						${addNumLink(2500)}
						${addNumLink(5000)}
					<br/>`;
				container.appendChild( info );
				ms = document.createElement('div');
				ms.innerHTML = '';
				info.appendChild(ms);

				document.body.appendChild( WEBVR.createButton( renderer ) );

				// controllers

				function onSelectStart() {

					this.userData.isSelecting = true;

				}

				function onSelectEnd() {

					this.userData.isSelecting = false;

				}

				controller1 = renderer.vr.getController( 0 );
				controller1.addEventListener( 'selectstart', onSelectStart );
				controller1.addEventListener( 'selectend', onSelectEnd );
				scene.add( controller1 );

				controller2 = renderer.vr.getController( 1 );
				controller2.addEventListener( 'selectstart', onSelectStart );
				controller2.addEventListener( 'selectend', onSelectEnd );
				scene.add( controller2 );

				// helpers

				var geometry = new THREE.BufferGeometry();
				geometry.addAttribute( 'position', new THREE.Float32BufferAttribute( [ 0, 0, 0, 0, 0, - 1 ], 3 ) );
				geometry.addAttribute( 'color', new THREE.Float32BufferAttribute( [ 0.5, 0.5, 0.5, 0, 0, 0 ], 3 ) );

				var material = new THREE.LineBasicMaterial( { vertexColors: true, blending: THREE.AdditiveBlending } );

				controller1.add( new THREE.Line( geometry, material ) );
				controller2.add( new THREE.Line( geometry, material ) );

				//

				window.addEventListener( 'resize', onWindowResize, false );

			}

			function onWindowResize() {

				camera.aspect = window.innerWidth / window.innerHeight;
				camera.updateProjectionMatrix();

				renderer.setSize( window.innerWidth, window.innerHeight );

			}

			function handleController( controller ) {

				if ( controller.userData.isSelecting ) {

					var object = room.children[ count ++ ];

					object.position.copy( controller.position );
					object.userData.velocity.x = ( Math.random() - 0.5 ) * 3;
					object.userData.velocity.y = ( Math.random() - 0.5 ) * 3;
					object.userData.velocity.z = ( Math.random() - 9 );
					object.userData.velocity.applyQuaternion( controller.quaternion );

					if ( count === room.children.length ) count = 0;

				}

			}

			//

			function animate() {

				renderer.setAnimationLoop( render );

			}

			function render() {

				handleController( controller1 );
				handleController( controller2 );

				//

				var delta = clock.getDelta() * 0.8; // slow down simulation

				var range = 3 - radius;

				for ( var i = 0; i < room.children.length; i ++ ) {

					var object = room.children[ i ];

					object.position.x += object.userData.velocity.x * delta;
					object.position.y += object.userData.velocity.y * delta;
					object.position.z += object.userData.velocity.z * delta;

					// keep objects inside room

					if ( object.position.x < - range || object.position.x > range ) {

						object.position.x = THREE.Math.clamp( object.position.x, - range, range );
						object.userData.velocity.x = - object.userData.velocity.x;

					}

					if ( object.position.y < radius || object.position.y > 6 ) {

						object.position.y = Math.max( object.position.y, radius );

						object.userData.velocity.x *= 0.98;
						object.userData.velocity.y = - object.userData.velocity.y * 0.8;
						object.userData.velocity.z *= 0.98;

					}

					if ( object.position.z < - range || object.position.z > range ) {

						object.position.z = THREE.Math.clamp( object.position.z, - range, range );
						object.userData.velocity.z = - object.userData.velocity.z;

					}

					for ( var j = i + 1; j < room.children.length; j ++ ) {

						var object2 = room.children[ j ];

						normal.copy( object.position ).sub( object2.position );

						var distance = normal.length();

						if ( distance < 2 * radius ) {

							normal.multiplyScalar( 0.5 * distance - radius );

							object.position.sub( normal );
							object2.position.add( normal );

							normal.normalize();

							relativeVelocity.copy( object.userData.velocity ).sub( object2.userData.velocity );

							normal = normal.multiplyScalar( relativeVelocity.dot( normal ) );

							object.userData.velocity.sub( normal );
							object2.userData.velocity.add( normal );

						}

					}

					object.userData.velocity.y -= 9.8 * delta;

				}

				var ts = performance.now();
				renderer.render( scene, camera );
				var trender = performance.now() - ts;

				// Compute average of the last frames
				for (var i = 0; i < avgCounter.length-1; ++i) avgCounter[i] = avgCounter[i+1];
				avgCounter[avgCounter.length-1] = trender;
				var avg = avgCounter.reduce(function(a, b) { return a + b; }) / avgCounter.length;

				ms.innerHTML = `renderer.render time: ${ trender.toFixed( 2 ) }ms (avg: ${ avg.toFixed( 2 ) }ms)`;

			}

		</script>
	</body>
</html>