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<!DOCTYPE html>
<html lang="en">
<head>
<title>three.js ar - paint</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<link type="text/css" rel="stylesheet" href="main.css">
</head>
<body>
<div id="info">
<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> ar - paint<br/>(Chrome Android 81+)
</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": "../build/three.module.js",
"three/addons/": "./jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import { TubePainter } from 'three/addons/misc/TubePainter.js';
import { ARButton } from 'three/addons/webxr/ARButton.js';
let container;
let camera, scene, renderer;
let controller, painter;
const cursor = new THREE.Vector3();
init();
animate();
function init() {
container = document.createElement( 'div' );
document.body.appendChild( container );
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 20 );
//
renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.xr.enabled = true;
container.appendChild( renderer.domElement );
//
document.body.appendChild( ARButton.createButton( renderer ) );
// model
const light = new THREE.HemisphereLight( 0xffffff, 0xbbbbff, 1 );
light.position.set( 0, 1, 0 );
scene.add( light );
//
painter = new TubePainter();
painter.setSize( 0.4 );
painter.mesh.material.side = THREE.DoubleSide;
scene.add( painter.mesh );
//
function onSelectStart() {
this.userData.isSelecting = true;
this.userData.skipFrames = 2;
}
function onSelectEnd() {
this.userData.isSelecting = false;
}
controller = renderer.xr.getController( 0 );
controller.addEventListener( 'selectstart', onSelectStart );
controller.addEventListener( 'selectend', onSelectEnd );
controller.userData.skipFrames = 0;
scene.add( controller );
//
window.addEventListener( 'resize', onWindowResize );
}
function onWindowResize() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize( window.innerWidth, window.innerHeight );
}
//
function handleController( controller ) {
const userData = controller.userData;
cursor.set( 0, 0, - 0.2 ).applyMatrix4( controller.matrixWorld );
if ( userData.isSelecting === true ) {
if ( userData.skipFrames >= 0 ) {
// TODO(mrdoob) Revisit this
userData.skipFrames --;
painter.moveTo( cursor );
} else {
painter.lineTo( cursor );
painter.update();
}
}
}
function animate() {
renderer.setAnimationLoop( render );
}
function render() {
handleController( controller );
renderer.render( scene, camera );
}
</script>
</body>
</html>