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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>
<!-- 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": "../../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({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>