javascript
/
three.js
зеркало из https://github.com/tazdij/three.js.git


			
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332
							<!DOCTYPE html>
<html>
	<title>three.js webgl - fly camera - earth</title>
	<style type="text/css">
	body {
		background:#000;
		color: #eee;
		padding:0;
		margin:0;
		font-weight:bold;
		overflow:hidden;

		font-family:Monospace;
		font-size:13px;
		text-align:center;
	}

	#info {
		position: absolute;
		top: 0px; width: 100%;
		padding: 5px;
		z-index:100;
	}

	a {

		color: #0080ff;
	}

	b { color:orange }

	</style>

	<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/ShaderPass.js"></script>
	<script type="text/javascript" src="js/postprocessing/MaskPass.js"></script>
	<script type="text/javascript" src="js/postprocessing/RenderPass.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>

</head>

<body>

<div id="info"><a href="http://github.com/mrdoob/three.js" target="_blank">three.js</a> - earth [fly camera]<br/><br/>
<b>WASD</b> move, <b>R|F</b> up | down, <b>Q|E</b> roll, <b>up|down</b> pitch, <b>left|right</b> yaw<br/>
</div>

<script type="text/javascript">

	if ( ! Detector.webgl ) Detector.addGetWebGLMessage();

	var radius = 6371;
	var tilt = 0.41;
	var rotationSpeed = 0.02;

	var cloudsScale = 1.005;
	var moonScale = 0.23;

	var MARGIN = 0;
	var SCREEN_HEIGHT = window.innerHeight - MARGIN * 2;
	var SCREEN_WIDTH  = window.innerWidth;

	var container, stats;
	var camera, scene, sceneCube, renderer;
	var geometry, meshPlanet, meshClouds, meshMoon;
	var dirLight, pointLight, ambientLight;
	var lastUpdate = new Date().getTime();

	var delta, d, dPlanet, dMoon, dMoonVec = new THREE.Vector3();

	init();
	animate();

	function init() {

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

        camera = new THREE.FlyCamera({

			fov: 25,
			aspect: SCREEN_WIDTH / SCREEN_HEIGHT,
			movementSpeed: 1000,
			domElement: container,
			rollSpeed: Math.PI / 24,
			autoForward: false,
			dragToLook: false,
			near: 50,
			far: 1e7

        });

        camera.position.z = radius * 5;

        scene = new THREE.Scene();
		scene.fog = new THREE.FogExp2( 0x000000, 0.00000025 );

        dirLight = new THREE.DirectionalLight( 0xffffff );
        dirLight.position.set( -1, 0, 1 );
        dirLight.position.normalize();
        scene.add( dirLight );

		ambientLight = new THREE.AmbientLight( 0x000000 );
		scene.add( ambientLight );

		var planetTexture   = THREE.ImageUtils.loadTexture( "textures/planets/earth_atmos_2048.jpg" );
		var cloudsTexture   = THREE.ImageUtils.loadTexture( "textures/planets/earth_clouds_1024.png" );
		var normalTexture   = THREE.ImageUtils.loadTexture( "textures/planets/earth_normal_2048.jpg" );
		var specularTexture = THREE.ImageUtils.loadTexture( "textures/planets/earth_specular_2048.jpg" );

		var moonTexture = THREE.ImageUtils.loadTexture( "textures/planets/moon_1024.jpg" );

		var shader = THREE.ShaderUtils.lib[ "normal" ];
		var uniforms = THREE.UniformsUtils.clone( shader.uniforms );

		uniforms[ "tNormal" ].texture = normalTexture;
		uniforms[ "uNormalScale" ].value = 0.85;

		uniforms[ "tDiffuse" ].texture = planetTexture;
		uniforms[ "tSpecular" ].texture = specularTexture;

		uniforms[ "enableAO" ].value = false;
		uniforms[ "enableDiffuse" ].value = true;
		uniforms[ "enableSpecular" ].value = true;

		uniforms[ "uDiffuseColor" ].value.setHex( 0xffffff );
		uniforms[ "uSpecularColor" ].value.setHex( 0xaaaaaa );
		uniforms[ "uAmbientColor" ].value.setHex( 0x000000 );

		uniforms[ "uShininess" ].value = 30;

		var parameters = { fragmentShader: shader.fragmentShader, vertexShader: shader.vertexShader, uniforms: uniforms, lights: true, fog: true };
		var materialNormalMap = new THREE.MeshShaderMaterial( parameters );

		// planet

        geometry = new THREE.SphereGeometry( radius, 100, 50 );
		geometry.computeTangents();

        meshPlanet = new THREE.Mesh( geometry, materialNormalMap );
		meshPlanet.rotation.y = 1.3;
		meshPlanet.rotation.z = tilt;
        scene.add( meshPlanet );

		// clouds

        var materialClouds = new THREE.MeshLambertMaterial( { color: 0xffffff, map: cloudsTexture, transparent: true } );

		meshClouds = new THREE.Mesh( geometry, materialClouds );
		meshClouds.scale.set( cloudsScale, cloudsScale, cloudsScale );
		meshClouds.rotation.z = tilt;
        scene.add( meshClouds );

		// moon

        var materialMoon = new THREE.MeshPhongMaterial( { color: 0xffffff, map: moonTexture } );

        meshMoon = new THREE.Mesh( geometry, materialMoon );
		meshMoon.position.set( radius * 5, 0, 0 );
		meshMoon.scale.set( moonScale, moonScale, moonScale );
        scene.add( meshMoon );

		// stars

		var i, r = radius,
			starsGeometry = [ new THREE.Geometry(), new THREE.Geometry() ];

		for ( i = 0; i < 250; i ++ ) {

			vector1 = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
			vector1.multiplyScalar( r );

			starsGeometry[ 0 ].vertices.push( new THREE.Vertex( vector1 ) );

		}

		for ( i = 0; i < 1500; ++i ) {

			vector1 = new THREE.Vector3( Math.random() * 2 - 1, Math.random() * 2 - 1, Math.random() * 2 - 1 );
			vector1.multiplyScalar( r );

			starsGeometry[ 1 ].vertices.push( new THREE.Vertex( vector1 ) );

		}

		var stars;
		var starsMaterials = [ new THREE.ParticleBasicMaterial( { color: 0x555555, size: 2, sizeAttenuation: false } ),
							   new THREE.ParticleBasicMaterial( { color: 0x555555, size: 1, sizeAttenuation: false } ),
							   new THREE.ParticleBasicMaterial( { color: 0x333333, size: 2, sizeAttenuation: false } ),
							   new THREE.ParticleBasicMaterial( { color: 0x3a3a3a, size: 1, sizeAttenuation: false } ),
							   new THREE.ParticleBasicMaterial( { color: 0x1a1a1a, size: 2, sizeAttenuation: false } ),
							   new THREE.ParticleBasicMaterial( { color: 0x1a1a1a, size: 1, sizeAttenuation: false } )
							];

		for ( i = 10; i < 30; i ++ ) {

			stars = new THREE.ParticleSystem( starsGeometry[ i % 2 ], starsMaterials[ i % 6 ] );

			stars.rotation.x = Math.random() * 6;
			stars.rotation.y = Math.random() * 6;
			stars.rotation.z = Math.random() * 6;

			s = i * 10;
			stars.scale.set( s, s, s );

			stars.matrixAutoUpdate = false;
			stars.updateMatrix();

			scene.add( stars );

		}

        renderer = new THREE.WebGLRenderer( { clearAlpha: 1, clearColor: 0x000000 } );
        renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
        renderer.sortObjects = false;

		renderer.autoClear = false;

        container.appendChild( renderer.domElement );

        stats = new Stats();
        stats.domElement.style.position = 'absolute';
        stats.domElement.style.top = '0px';
        stats.domElement.style.zIndex = 100;
        container.appendChild( stats.domElement );

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

		// postprocessing

		var renderModel = new THREE.RenderPass( scene, camera );
		var effectFilm = new THREE.FilmPass( 0.35, 0.75, 2048, false );

		effectFilm.renderToScreen = true;

		composer = new THREE.EffectComposer( renderer );

		composer.addPass( renderModel );
		composer.addPass( effectFilm );

	};

	function onWindowResize( event ) {

		SCREEN_HEIGHT = window.innerHeight;
		SCREEN_WIDTH  = window.innerWidth;

		renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );

		camera.aspect = SCREEN_WIDTH / SCREEN_HEIGHT;
		camera.updateProjectionMatrix();

		composer.reset();

	}

	function cap_bottom( val, bottom ) {

		return val < bottom ? bottom : val;

	};


	function animate() {

		requestAnimationFrame( animate );

        render();
        stats.update();

	};


	function cap( val, bottom ) {

		return val > bottom ? val : bottom;

	};

	function render() {

		// rotate the planet and clouds

		delta = this.getFrametime();

        meshPlanet.rotation.y += rotationSpeed * delta;
		meshClouds.rotation.y += 1.25 * rotationSpeed * delta;

		// slow down as we approach the surface

		dPlanet = camera.position.length();

		dMoonVec.sub( camera.position, meshMoon.position );
		dMoon = dMoonVec.length();

		if ( dMoon < dPlanet ) {

			d = ( dMoon - radius * moonScale * 1.01 );

		} else {

			d = ( dPlanet - radius * 1.01 );

		}

        camera.movementSpeed = 0.33 * d;

		renderer.clear();
		composer.render( delta );

	};

	function getFrametime() {

        var now = new Date().getTime();
        var tdiff = ( now - lastUpdate ) / 1000;
        lastUpdate = now;
        return tdiff;

	};

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