Webleb - Extraits de Code

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/* Replace with your JS Code 
(Leave empty if not needed) */
/**

* @file

* The main scene.

*/

/**

* Define constants.

*/

const TEXTURE_PATH = 'https://s3-us-west-2.amazonaws.com/s.cdpn.io/123879/';

/**

* Create the animation request.

*/

if (!window.requestAnimationFrame) {

window.requestAnimationFrame = (function() {

return window.mozRequestAnimationFrame ||

window.msRequestAnimationFrame ||

window.oRequestAnimationFrame ||

window.webkitRequestAnimationFrame ||

function (callback, element) {

// 60 FPS

window.setTimeout(callback, 1000 / 60);

};

})();

}

var camera,

scene,

renderer,

effect,

controls,

element,

container,

sphere,

sphereCloud,

rotationPoint;

var degreeOffset = 90;

var earthRadius = 80;

var getEarthRotation = function() {

// Get the current time.

var d = new Date();

var h = d.getUTCHours();

var m = d.getUTCMinutes();

// Calculate total minutes.

var minutes = h * 60;

minutes += m;

// Turn minutes into degrees.

degrees = minutes/3.9907;

// Add an offset to match UTC time.

degrees += degreeOffset;

return degrees;

}

var degrees = getEarthRotation();

// Calculate Earth's rotation position.

setInterval(function() {

// Get the current time.

var d = new Date();

var h = d.getUTCHours();

var m = d.getUTCMinutes();

// Calculate total minutes.

var minutes = h * 60;

minutes += m;

// Turn minutes into degrees.

degrees = minutes/3.9907;

// Add an offset to match UTC time.

degrees += degreeOffset;

}, 60000);

init();

animate();

/**

* Initializer function.

*/

function init() {

// Build the container

container = document.createElement( 'div' );

document.body.appendChild( container );

// Create the scene.

scene = new THREE.Scene();

// Create a rotation point.

baseRotationPoint = new THREE.Object3D();

baseRotationPoint.position.set( 0, 0, 0 );

scene.add( baseRotationPoint );

// Create world rotation point.

worldRotationPoint = new THREE.Object3D();

worldRotationPoint.position.set( 0, 0, 0 );

scene.add( worldRotationPoint );

rotationPoint = new THREE.Object3D();

rotationPoint.position.set( 0, 0, earthRadius * 4 );

baseRotationPoint.add( rotationPoint );

// Create the camera.

camera = new THREE.PerspectiveCamera(

45, // Angle

window.innerWidth / window.innerHeight, // Aspect Ratio.

1, // Near view.

10000 // Far view.

);

rotationPoint.add( camera );

// Build the renderer.

renderer = new THREE.WebGLRenderer();

element = renderer.domElement;

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

renderer.shadowMap.enabled;

container.appendChild( element );

// Build the controls.

controls = new THREE.OrbitControls( camera, element );

controls.enablePan = true;

controls.enableZoom = true;

controls.maxDistance = earthRadius * 8;

controls.minDistance = earthRadius * 2;

controls.target.copy( new THREE.Vector3( 0, 0, -1 * earthRadius * 4 ));

function setOrientationControls(e) {

if (!e.alpha) {

return;

}

controls = new THREE.DeviceOrientationControls( camera );

controls.connect();

window.removeEventListener('deviceorientation', setOrientationControls, true);

}

window.addEventListener('deviceorientation', setOrientationControls, true);

// Ambient lights

var ambient = new THREE.AmbientLight( 0x222222 );

scene.add( ambient );

// The sun.

var light = new THREE.PointLight( 0xffeecc, 1, 5000 );

light.position.set( -400, 0, 100 );

scene.add( light );

// Since the sun is much bigger than a point of light, add four fillers.

var light2 = new THREE.PointLight( 0xffffff, 0.6, 4000 );

light2.position.set( -400, 0, 250 );

scene.add( light2 );

var light3 = new THREE.PointLight( 0xffffff, 0.6, 4000 );

light3.position.set( -400, 0, -150 );

scene.add( light3 );

var light4 = new THREE.PointLight( 0xffffff, 0.6, 4000 );

light4.position.set( -400, 150, 100 );

scene.add( light4 );

var light5 = new THREE.PointLight( 0xffffff, 0.6, 4000 );

light5.position.set( -400, -150, 100 );

scene.add( light5 );

// Add the Earth sphere model.

var geometry = new THREE.SphereGeometry( earthRadius, 128, 128 );

// Create the Earth materials.

loader = new THREE.TextureLoader();

loader.setCrossOrigin( 'https://s.codepen.io' );

var texture = loader.load( TEXTURE_PATH + 'ColorMap.jpg' );

var bump = null;

bump = loader.load( TEXTURE_PATH + 'Bump.jpg' );

var spec = null;

spec = loader.load( TEXTURE_PATH + 'SpecMask.jpg' );

var material = new THREE.MeshPhongMaterial({

color: "#ffffff",

shininess: 5,

map: texture,

specularMap: spec,

specular: "#666666",

bumpMap: bump,

});

sphere = new THREE.Mesh( geometry, material );

sphere.position.set( 0, 0, 0 );

sphere.rotation.y = Math.PI;

// Focus initially on the prime meridian.

sphere.rotation.y = -1 * (8.7 * Math.PI / 17);

// Add the Earth to the scene.https://s3-us-west-2.amazonaws.com/s.cdpn.io/123879/Bump.jpg

worldRotationPoint.add( sphere );

// Add the Earth sphere model.

var geometryCloud = new THREE.SphereGeometry( earthRadius + 0.2, 128, 128 );

loader = new THREE.TextureLoader();

loader.setCrossOrigin( 'https://s.codepen.io' );

var alpha = loader.load( TEXTURE_PATH + "alphaMap.jpg" );

var materialCloud = new THREE.MeshPhongMaterial({

alphaMap: alpha,

});

materialCloud.transparent = true;

sphereCloud = new THREE.Mesh( geometryCloud, materialCloud );

scene.add( sphereCloud );

// Create a glow effect.

loader = new THREE.TextureLoader();

loader.setCrossOrigin( 'https://s.codepen.io' );

var glowMap = loader.load( TEXTURE_PATH + "glow.png" );

// Create the sprite to add the glow effect.

var spriteMaterial = new THREE.SpriteMaterial({

map: glowMap,

color: 0x0099ff,

transparent: false,

blending: THREE.AdditiveBlending

});

var sprite = new THREE.Sprite( spriteMaterial );

sprite.scale.set( earthRadius * 2.5, earthRadius * 2.5, 1.0);

sphereCloud.add(sprite);

// Add the skymap.

addSkybox();

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

}

/**

* Events to fire upon window resizing.

*/

function onWindowResize() {

camera.aspect = window.innerWidth / window.innerHeight;

camera.updateProjectionMatrix();

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

}

/**

* Add the sun to the scene.

*/

function createSun() {

// Add the Sun sphere model.

var sunGeometry = new THREE.SphereGeometry( 100, 16, 16 );

// Create the Sun materials.

var sunMaterial = new THREE.MeshLambertMaterial({

color: '#ffff55',

emissive: '#ffff55',

});

sun = new THREE.Mesh( sunGeometry, sunMaterial );

sun.castShadow = false;

sun.receiveShadow = false;

sun.position.set( -9500, 0, 0 );

sun.rotation.y = Math.PI;

// Add the Sun to the scene.

scene.add( sun );

}

createSun();

/**

* Updates to apply to the scene while running.

*/

function update() {

camera.updateProjectionMatrix();

worldRotationPoint.rotation.y = degrees * Math.PI/180;

sphereCloud.rotation.y += 0.00025;

baseRotationPoint.rotation.y -= 0.00025;

}

/**

* Render the scene.

*/

function render() {

renderer.render(scene, camera);

}

/**

* Animate the scene.

*/

function animate() {

requestAnimationFrame(animate);

update();

render();

}

function addSkybox() {

var urlPrefix = TEXTURE_PATH;

var urls = [

urlPrefix + 'test.jpg',

];

var loader = new THREE.CubeTextureLoader();

loader.setCrossOrigin( 'https://s.codepen.io' );

var textureCube = loader.load( urls );

textureCube.format = THREE.RGBFormat;

var shader = THREE.ShaderLib[ "cube" ];

shader.uniforms[ "tCube" ].value = textureCube;

var material = new THREE.ShaderMaterial( {

fragmentShader: shader.fragmentShader,

vertexShader: shader.vertexShader,

uniforms: shader.uniforms,

depthWrite: false,

side: THREE.BackSide

} );

var geometry = new THREE.BoxGeometry( 2000, 2000, 2000 );

var skybox = new THREE.Mesh( geometry, material );

//skybox.position.x = -30;

scene.add( skybox );

}

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