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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 - Debug - HTML Elements</title>
- <style>
- html, body {
- height: 100%;
- margin: 0;
- }
- #c {
- width: 100%;
- height: 100%;
- display: block;
- }
- #debug {
- position: absolute;
- left: 1em;
- top: 1em;
- padding: 1em;
- background: rgba(0, 0, 0, 0.9);
- color: white;
- font-family: monospace;
- }
- </style>
- </head>
- <body>
- <canvas id="c"></canvas>
- <div id="debug">
- <div>x:<span id="x"></span></div>
- <div>y:<span id="y"></span></div>
- <div>z:<span id="z"></span></div>
- </div>
- </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 = 75;
- const aspect = 2; // the canvas default
- const near = 0.1;
- const far = 50;
- const camera = new THREE.PerspectiveCamera( fov, aspect, near, far );
- camera.position.z = 20;
- const scene = new THREE.Scene();
- scene.background = new THREE.Color( 'red' );
- const geometry = new THREE.SphereGeometry();
- const material = new THREE.MeshBasicMaterial( { color: 'yellow' } );
- const mesh = new THREE.Mesh( geometry, material );
- scene.add( mesh );
- 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;
- }
- const xElem = document.querySelector( '#x' );
- const yElem = document.querySelector( '#y' );
- const zElem = document.querySelector( '#z' );
- function render( time ) {
- time *= 0.001; // convert to seconds
- if ( resizeRendererToDisplaySize( renderer ) ) {
- const canvas = renderer.domElement;
- camera.aspect = canvas.clientWidth / canvas.clientHeight;
- camera.updateProjectionMatrix();
- }
- mesh.position.set(
- Math.sin( time * 1.2 ) * 5,
- Math.sin( time * 1.1 ) * 5,
- Math.sin( time * 1.3 ) * 10,
- );
- xElem.textContent = mesh.position.x.toFixed( 3 );
- yElem.textContent = mesh.position.y.toFixed( 3 );
- zElem.textContent = mesh.position.z.toFixed( 3 );
- renderer.render( scene, camera );
- requestAnimationFrame( render );
- }
- requestAnimationFrame( render );
- }
- main();
- </script>
- </html>
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