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css2d_label.html
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css2d_label.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<title>three.js css2d - label</title>
<link type="text/css" rel="stylesheet" href="main.css">
<style>
.label {
color: #FFF;
font-family: sans-serif;
padding: 2px;
background: rgba( 0, 0, 0, .6 );
}
</style>
</head>
<body>
<div id="info"><a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> css2d - label</div>
<!-- Import maps polyfill -->
<!-- Remove this when import maps will be widely supported -->
<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
<script type="importmap">
{
"imports": {
"three": "https://code4fukui.github.io/three.js/build/three.module.js",
"three/addons/": "https://code4fukui.github.io/three.js/examples/jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { OrbitControls } from 'three/addons/controls/OrbitControls.js';
import { CSS2DRenderer, CSS2DObject } from 'three/addons/renderers/CSS2DRenderer.js';
import { GUI } from 'three/addons/libs/lil-gui.module.min.js';
let gui;
let camera, scene, renderer, labelRenderer;
const layers = {
'Toggle Name': function () {
camera.layers.toggle( 0 );
},
'Toggle Mass': function () {
camera.layers.toggle( 1 );
},
'Enable All': function () {
camera.layers.enableAll();
},
'Disable All': function () {
camera.layers.disableAll();
}
};
const clock = new THREE.Clock();
const textureLoader = new THREE.TextureLoader();
let moon;
init();
animate();
function init() {
const EARTH_RADIUS = 1;
const MOON_RADIUS = 0.27;
camera = new THREE.PerspectiveCamera( 45, window.innerWidth / window.innerHeight, 0.1, 200 );
camera.position.set( 10, 5, 20 );
camera.layers.enableAll();
camera.layers.toggle( 1 );
scene = new THREE.Scene();
const dirLight = new THREE.DirectionalLight( 0xffffff );
dirLight.position.set( 0, 0, 1 );
dirLight.layers.enableAll();
scene.add( dirLight );
const axesHelper = new THREE.AxesHelper( 5 );
axesHelper.layers.enableAll();
scene.add( axesHelper );
//
const earthGeometry = new THREE.SphereGeometry( EARTH_RADIUS, 16, 16 );
const earthMaterial = new THREE.MeshPhongMaterial( {
specular: 0x333333,
shininess: 5,
map: textureLoader.load( 'textures/planets/earth_atmos_2048.jpg' ),
specularMap: textureLoader.load( 'textures/planets/earth_specular_2048.jpg' ),
normalMap: textureLoader.load( 'textures/planets/earth_normal_2048.jpg' ),
normalScale: new THREE.Vector2( 0.85, 0.85 )
} );
const earth = new THREE.Mesh( earthGeometry, earthMaterial );
scene.add( earth );
const moonGeometry = new THREE.SphereGeometry( MOON_RADIUS, 16, 16 );
const moonMaterial = new THREE.MeshPhongMaterial( {
shininess: 5,
map: textureLoader.load( 'textures/planets/moon_1024.jpg' )
} );
moon = new THREE.Mesh( moonGeometry, moonMaterial );
scene.add( moon );
//
earth.layers.enableAll();
moon.layers.enableAll();
const earthDiv = document.createElement( 'div' );
earthDiv.className = 'label';
earthDiv.textContent = 'Earth';
earthDiv.style.marginTop = '-1em';
const earthLabel = new CSS2DObject( earthDiv );
earthLabel.position.set( 0, EARTH_RADIUS, 0 );
earth.add( earthLabel );
earthLabel.layers.set( 0 );
const earthMassDiv = document.createElement( 'div' );
earthMassDiv.className = 'label';
earthMassDiv.textContent = '5.97237e24 kg';
earthMassDiv.style.marginTop = '-1em';
const earthMassLabel = new CSS2DObject( earthMassDiv );
earthMassLabel.position.set( 0, - 2 * EARTH_RADIUS, 0 );
earth.add( earthMassLabel );
earthMassLabel.layers.set( 1 );
const moonDiv = document.createElement( 'div' );
moonDiv.className = 'label';
moonDiv.textContent = 'Moon';
moonDiv.style.marginTop = '-1em';
const moonLabel = new CSS2DObject( moonDiv );
moonLabel.position.set( 0, MOON_RADIUS, 0 );
moon.add( moonLabel );
moonLabel.layers.set( 0 );
const moonMassDiv = document.createElement( 'div' );
moonMassDiv.className = 'label';
moonMassDiv.textContent = '7.342e22 kg';
moonMassDiv.style.marginTop = '-1em';
const moonMassLabel = new CSS2DObject( moonMassDiv );
moonMassLabel.position.set( 0, - 2 * MOON_RADIUS, 0 );
moon.add( moonMassLabel );
moonMassLabel.layers.set( 1 );
//
renderer = new THREE.WebGLRenderer();
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
labelRenderer = new CSS2DRenderer();
labelRenderer.setSize( window.innerWidth, window.innerHeight );
labelRenderer.domElement.style.position = 'absolute';
labelRenderer.domElement.style.top = '0px';
document.body.appendChild( labelRenderer.domElement );
const controls = new OrbitControls( camera, labelRenderer.domElement );
controls.minDistance = 5;
controls.maxDistance = 100;
//
window.addEventListener( 'resize', onWindowResize );
initGui();
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
labelRenderer.setSize( window.innerWidth, window.innerHeight );
}
function animate() {
requestAnimationFrame( animate );
const elapsed = clock.getElapsedTime();
moon.position.set( Math.sin( elapsed ) * 5, 0, Math.cos( elapsed ) * 5 );
renderer.render( scene, camera );
labelRenderer.render( scene, camera );
}
//
function initGui() {
gui = new GUI();
gui.add( layers, 'Toggle Name' );
gui.add( layers, 'Toggle Mass' );
gui.add( layers, 'Enable All' );
gui.add( layers, 'Disable All' );
}
</script>
</body>
</html>