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- <!-- Licensed under a BSD license. See license.html for license -->
- <!DOCTYPE html>
- <html>
- <head>
- <meta charset="utf-8">
- <meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
- <title>Three.js - Scenegraph - Sun Earth</title>
- <style>
- html, body {
- height: 100%;
- margin: 0;
- }
- #c {
- width: 100%;
- height: 100%;
- display: block;
- }
- </style>
- </head>
- <body>
- <canvas id="c"></canvas>
- </body>
- <script type="importmap">
- {
- "imports": {
- "three": "../../build/three.module.js"
- }
- }
- </script>
- <script type="module">
- import * as THREE from 'three';
- function main() {
- const canvas = document.querySelector( '#c' );
- const renderer = new THREE.WebGLRenderer( { antialias: true, canvas } );
- const fov = 40;
- const aspect = 2; // the canvas default
- const near = 0.1;
- const far = 1000;
- const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
- camera.position.set( 0, 150, 0 );
- camera.up.set( 0, 0, 1 );
- camera.lookAt( 0, 0, 0 );
- const scene = new THREE.Scene();
- {
- const color = 0xFFFFFF;
- const intensity = 500;
- const light = new THREE.PointLight( color, intensity );
- scene.add( light );
- }
- const objects = [];
- const radius = 1;
- const widthSegments = 6;
- const heightSegments = 6;
- const sphereGeometry = new THREE.SphereGeometry(
- radius, widthSegments, heightSegments );
- const sunMaterial = new THREE.MeshPhongMaterial( { emissive: 0xFFFF00 } );
- const sunMesh = new THREE.Mesh( sphereGeometry, sunMaterial );
- sunMesh.scale.set( 5, 5, 5 );
- scene.add( sunMesh );
- objects.push( sunMesh );
- const earthMaterial = new THREE.MeshPhongMaterial( { color: 0x2233FF, emissive: 0x112244 } );
- const earthMesh = new THREE.Mesh( sphereGeometry, earthMaterial );
- earthMesh.position.x = 10;
- sunMesh.add( earthMesh );
- objects.push( earthMesh );
- function resizeRendererToDisplaySize( renderer ) {
- const canvas = renderer.domElement;
- const width = canvas.clientWidth;
- const height = canvas.clientHeight;
- const needResize = canvas.width !== width || canvas.height !== height;
- if ( needResize ) {
- renderer.setSize( width, height, false );
- }
- return needResize;
- }
- function render( time ) {
- time *= 0.001;
- if ( resizeRendererToDisplaySize( renderer ) ) {
- const canvas = renderer.domElement;
- camera.aspect = canvas.clientWidth / canvas.clientHeight;
- camera.updateProjectionMatrix();
- }
- objects.forEach( ( obj ) => {
- obj.rotation.y = time;
- } );
- renderer.render( scene, camera );
- requestAnimationFrame( render );
- }
- requestAnimationFrame( render );
- }
- main();
- </script>
- </html>
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