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webgl_flycamera_earth.html
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<!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/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 ENABLE_LENSFLARES = false;
var lensFlare, lensFlareRotate;
var container, stats;
var camera, scene, sceneCube, renderer;
var geometry, meshPlanet, meshClouds, meshMoon;
var dirLight, pointLight, ambientLight;
var lastUpdate = new Date().getTime();
var t, d, dPlanet, dMoon, dMoonVec = new THREE.Vector3();
var postprocessing = { enabled : true, bloom: false };
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.addLight( dirLight );
pointLight = new THREE.PointLight( 0x000000 );
pointLight.position.set( -5000, 0, 5000 );
//scene.addLight( pointLight );
ambientLight = new THREE.AmbientLight( 0x000000 );
scene.addLight( 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[ "uDirLightPos" ].value = dirLight.position;
uniforms[ "uDirLightColor" ].value = dirLight.color;
uniforms[ "uPointLightPos" ].value = pointLight.position;
uniforms[ "uPointLightColor" ].value = pointLight.color;
uniforms[ "uAmbientLightColor" ].value = ambientLight.color;
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 };
var materialNormalMap = new THREE.MeshShaderMaterial( parameters );
// planet
geometry = new THREE.Sphere( radius, 100, 50 );
geometry.computeTangents();
meshPlanet = new THREE.Mesh( geometry, materialNormalMap );
meshPlanet.rotation.y = 1.3;
meshPlanet.rotation.z = tilt;
scene.addObject( 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.addObject( 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.addObject( 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.addObject( stars );
}
if ( ENABLE_LENSFLARES ) {
lensFlare = new THREE.LensFlare( THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare0.png" ), 700, 0.0, THREE.AdditiveBlending );
lensFlare.add( THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare2.png" ), 512, 0.0, THREE.AdditiveBlending );
lensFlare.add( lensFlare.lensFlares[ 1 ].texture, 512, 0.0, THREE.AdditiveBlending );
lensFlare.add( lensFlare.lensFlares[ 1 ].texture, 512, 0.0, THREE.AdditiveBlending );
lensFlare.add( THREE.ImageUtils.loadTexture( "textures/lensflare/lensflare3.png" ), 60, 0.6, THREE.AdditiveBlending );
lensFlare.add( lensFlare.lensFlares[ 4 ].texture, 70, 0.7, THREE.AdditiveBlending );
lensFlare.add( lensFlare.lensFlares[ 4 ].texture, 120, 0.9, THREE.AdditiveBlending );
lensFlare.add( lensFlare.lensFlares[ 4 ].texture, 70, 1.0, THREE.AdditiveBlending );
lensFlare.customUpdateCallback = lensFlareUpdateCallback;
lensFlare.position.set( 0, 0, -99000 );
lensFlareRotate = new THREE.Object3D();
lensFlareRotate.addChild( lensFlare );
scene.addChild( lensFlareRotate );
lensFlareRotate.rotation.x = Math.PI;
lensFlareRotate.rotation.y = Math.PI / 2;
}
renderer = new THREE.WebGLRenderer( { clearAlpha: 1, clearColor: 0x000000 } );
renderer.setSize( SCREEN_WIDTH, SCREEN_HEIGHT );
renderer.sortObjects = false;
initPostprocessing();
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 );
};
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();
initPostprocessing();
}
function initPostprocessing() {
postprocessing.scene = new THREE.Scene();
postprocessing.camera = new THREE.Camera();
postprocessing.camera.projectionMatrix = THREE.Matrix4.makeOrtho( SCREEN_WIDTH / - 2, SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2, SCREEN_HEIGHT / - 2, -10000, 10000 );
postprocessing.camera.position.z = 100;
var pars = { minFilter: THREE.LinearFilter, magFilter: THREE.LinearFilter, format: THREE.RGBAFormat };
postprocessing.rtTexture1 = new THREE.WebGLRenderTarget( SCREEN_WIDTH, SCREEN_HEIGHT, pars );
postprocessing.rtTexture2 = new THREE.WebGLRenderTarget( 512, 512, pars );
postprocessing.rtTexture3 = new THREE.WebGLRenderTarget( 512, 512, pars );
var screen_shader = THREE.ShaderUtils.lib["screen"];
var screen_uniforms = THREE.UniformsUtils.clone( screen_shader.uniforms );
screen_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
screen_uniforms["opacity"].value = 1.0;
postprocessing.materialScreen = new THREE.MeshShaderMaterial( {
uniforms: screen_uniforms,
vertexShader: screen_shader.vertexShader,
fragmentShader: screen_shader.fragmentShader,
blending: THREE.AdditiveBlending,
transparent: true
} );
var convolution_shader = THREE.ShaderUtils.lib["convolution"];
var convolution_uniforms = THREE.UniformsUtils.clone( convolution_shader.uniforms );
postprocessing.blurx = new THREE.Vector2( 0.001953125, 0.0 ),
postprocessing.blury = new THREE.Vector2( 0.0, 0.001953125 );
convolution_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
convolution_uniforms["uImageIncrement"].value = postprocessing.blurx;
convolution_uniforms["cKernel"].value = THREE.ShaderUtils.buildKernel( 4.0 );
postprocessing.materialConvolution = new THREE.MeshShaderMaterial( {
uniforms: convolution_uniforms,
vertexShader: "#define KERNEL_SIZE 25.0\n" + convolution_shader.vertexShader,
fragmentShader: "#define KERNEL_SIZE 25\n" + convolution_shader.fragmentShader
} );
var film_shader = THREE.ShaderUtils.lib["film"];
var film_uniforms = THREE.UniformsUtils.clone( film_shader.uniforms );
film_uniforms["tDiffuse"].texture = postprocessing.rtTexture1;
postprocessing.materialFilm = new THREE.MeshShaderMaterial( { uniforms: film_uniforms, vertexShader: film_shader.vertexShader, fragmentShader: film_shader.fragmentShader } );
postprocessing.materialFilm.uniforms.grayscale.value = 0;
postprocessing.materialFilm.uniforms.nIntensity.value = 0.35;
postprocessing.materialFilm.uniforms.sIntensity.value = 0.75;
postprocessing.materialFilm.uniforms.sCount.value = 2048;
postprocessing.quad = new THREE.Mesh( new THREE.Plane( SCREEN_WIDTH, SCREEN_HEIGHT ), postprocessing.materialConvolution );
postprocessing.quad.position.z = - 500;
postprocessing.scene.addObject( postprocessing.quad );
};
function cap_bottom( val, bottom ) {
return val < bottom ? bottom : val;
};
function lensFlareUpdateCallback( object ) {
var f, fl = object.lensFlares.length;
var flare;
var vecX = -object.positionScreen.x * 2;
var vecY = -object.positionScreen.y * 2;
for( f = 0; f < fl; f++ ) {
flare = object.lensFlares[ f ];
flare.x = object.positionScreen.x + vecX * flare.distance;
flare.y = object.positionScreen.y + vecY * flare.distance;
flare.rotation = 0;
flare.opacity = cap_bottom( 1 - 0.01 * d / radius, 0 );
}
// hard coded stuff
object.lensFlares[ 2 ].y += 0.025;
object.lensFlares[ 3 ].rotation = object.positionScreen.x * 0.5 + 45 * Math.PI / 180;
};
function animate() {
requestAnimationFrame( animate );
render();
stats.update();
};
function cap( val, bottom ) {
return val > bottom ? val : bottom;
};
function render() {
// rotate the planet and clouds
t = this.getFrametime();
meshPlanet.rotation.y += rotationSpeed * t;
meshClouds.rotation.y += 1.25 * rotationSpeed * t;
// 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;
if ( ENABLE_LENSFLARES ) {
lensFlareRotate.position.set( camera.position.x, camera.position.y, camera.position.z );
}
if ( postprocessing.enabled ) {
renderer.clear();
// Render scene into texture
renderer.render( scene, camera, postprocessing.rtTexture1, true );
if ( postprocessing.bloom ) {
// Render quad with blured scene into texture (convolution pass 1)
postprocessing.quad.materials = [ postprocessing.materialConvolution ];
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blurx;
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture2, true );
// Render quad with blured scene into texture (convolution pass 2)
postprocessing.materialConvolution.uniforms.tDiffuse.texture = postprocessing.rtTexture2;
postprocessing.materialConvolution.uniforms.uImageIncrement.value = postprocessing.blury;
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture3, true );
// Render original scene with superimposed blur to texture
postprocessing.quad.materials = [ postprocessing.materialScreen ];
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture3;
postprocessing.materialScreen.uniforms.opacity.value = 0.75;
renderer.render( postprocessing.scene, postprocessing.camera, postprocessing.rtTexture1, false );
}
// Render to screen
postprocessing.materialFilm.uniforms.time.value += 0.01;
postprocessing.quad.materials = [ postprocessing.materialFilm ];
postprocessing.materialScreen.uniforms.tDiffuse.texture = postprocessing.rtTexture1;
renderer.render( postprocessing.scene, postprocessing.camera );
} else {
renderer.clear();
renderer.render( scene, camera );
}
};
function getFrametime() {
var now = new Date().getTime();
var tdiff = ( now - lastUpdate ) / 1000;
lastUpdate = now;
return tdiff;
};
</script>
</body>
</html>