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173 lines
4.2 KiB
173 lines
4.2 KiB
<!-- Licensed under a BSD license. See license.html for license -->
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
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<title>Three.js - Primitives</title>
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<style>
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html, body {
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height: 100%;
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margin: 0;
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}
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#c {
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width: 100%;
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height: 100%;
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display: block;
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}
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</style>
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</head>
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<body>
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<canvas id="c"></canvas>
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</body>
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<!-- Import maps polyfill -->
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<!-- Remove this when import maps will be widely supported -->
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<script async src="https://unpkg.com/es-module-shims@1.3.6/dist/es-module-shims.js"></script>
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<script type="importmap">
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{
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"imports": {
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"three": "../../build/three.module.js",
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"three/addons/": "../../examples/jsm/"
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}
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}
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</script>
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<script type="module">
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import * as THREE from 'three';
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import {FontLoader} from 'three/addons/loaders/FontLoader.js';
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import {TextGeometry} from 'three/addons/geometries/TextGeometry.js';
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function main() {
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const canvas = document.querySelector('#c');
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const renderer = new THREE.WebGLRenderer({canvas});
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const fov = 40;
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const aspect = 2; // the canvas default
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const near = 0.1;
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const far = 1000;
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const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
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camera.position.z = 40;
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const scene = new THREE.Scene();
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scene.background = new THREE.Color(0xAAAAAA);
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{
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const color = 0xFFFFFF;
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const intensity = 1;
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const light = new THREE.DirectionalLight(color, intensity);
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light.position.set(-1, 2, 4);
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scene.add(light);
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}
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{
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const color = 0xFFFFFF;
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const intensity = 1;
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const light = new THREE.DirectionalLight(color, intensity);
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light.position.set(1, -2, -4);
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scene.add(light);
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}
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const objects = [];
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const spread = 15;
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function addObject(x, y, obj) {
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obj.position.x = x * spread;
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obj.position.y = y * spread;
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scene.add(obj);
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objects.push(obj);
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}
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function createMaterial() {
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const material = new THREE.MeshPhongMaterial({
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side: THREE.DoubleSide,
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});
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const hue = Math.random();
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const saturation = 1;
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const luminance = .5;
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material.color.setHSL(hue, saturation, luminance);
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return material;
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}
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function addSolidGeometry(x, y, geometry) {
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const mesh = new THREE.Mesh(geometry, createMaterial());
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addObject(x, y, mesh);
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}
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{
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const loader = new FontLoader();
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// promisify font loading
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function loadFont(url) {
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return new Promise((resolve, reject) => {
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loader.load(url, resolve, undefined, reject);
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});
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}
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async function doit() {
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const font = await loadFont('/examples/fonts/helvetiker_regular.typeface.json'); /* threejs.org: url */
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const geometry = new TextGeometry('three.js', {
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font: font,
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size: 3.0,
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height: .2,
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curveSegments: 12,
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bevelEnabled: true,
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bevelThickness: 0.15,
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bevelSize: .3,
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bevelSegments: 5,
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});
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addSolidGeometry(-.5, 0, geometry);
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const mesh = new THREE.Mesh(geometry, createMaterial());
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geometry.computeBoundingBox();
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geometry.boundingBox.getCenter(mesh.position).multiplyScalar(-1);
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const parent = new THREE.Object3D();
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parent.add(mesh);
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addObject(.5, 0, parent);
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}
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doit();
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}
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function resizeRendererToDisplaySize(renderer) {
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const canvas = renderer.domElement;
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const width = canvas.clientWidth;
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const height = canvas.clientHeight;
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const needResize = canvas.width !== width || canvas.height !== height;
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if (needResize) {
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renderer.setSize(width, height, false);
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}
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return needResize;
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}
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function render(time) {
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time *= 0.001;
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if (resizeRendererToDisplaySize(renderer)) {
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const canvas = renderer.domElement;
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camera.aspect = canvas.clientWidth / canvas.clientHeight;
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camera.updateProjectionMatrix();
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}
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objects.forEach((obj, ndx) => {
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const speed = .5 + ndx * .05;
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const rot = time * speed;
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obj.rotation.x = rot;
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obj.rotation.y = rot;
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});
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renderer.render(scene, camera);
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requestAnimationFrame(render);
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}
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requestAnimationFrame(render);
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}
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main();
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</script>
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</html>
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