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168 lines
4.0 KiB
168 lines
4.0 KiB
3 years ago
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<title>three.js ar - plane detection</title>
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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=no">
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<link type="text/css" rel="stylesheet" href="main.css">
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</head>
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<body>
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<div id="info">
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<a href="https://threejs.org" target="_blank" rel="noopener">three.js</a> ar - plane detection<br/>(Chrome Android 81+)
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</div>
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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/": "./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 { ARButton } from 'three/addons/webxr/ARButton.js';
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let camera, scene, renderer;
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let controller;
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init();
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animate();
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const planesAdded = new Set();
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function init() {
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const container = document.createElement( 'div' );
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document.body.appendChild( container );
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scene = new THREE.Scene();
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camera = new THREE.PerspectiveCamera( 70, window.innerWidth / window.innerHeight, 0.01, 20 );
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const light = new THREE.HemisphereLight( 0xffffff, 0xbbbbff, 1 );
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light.position.set( 0.5, 1, 0.25 );
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scene.add( light );
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//
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renderer = new THREE.WebGLRenderer( { antialias: true, alpha: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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renderer.xr.enabled = true;
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container.appendChild( renderer.domElement );
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//
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document.body.appendChild( ARButton.createButton( renderer, {
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requiredFeatures: ['plane-detection']
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} ) );
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//
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window.addEventListener( 'resize', onWindowResize );
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renderer.xr.addEventListener( 'sessionstart', function () {
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camera.position.set( 0, 0, 0 );
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} );
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renderer.xr.addEventListener( 'planeadded', function (e) {
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console.log( "plane added", e.data )
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} );
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renderer.xr.addEventListener( 'planeremoved', function (e) {
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console.log( "plane removed", e.data )
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} );
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renderer.xr.addEventListener( 'planechanged', function (e) {
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console.log( "plane changed", e.data)
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} );
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renderer.xr.addEventListener( 'planesdetected', function (e) {
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const detectedPlanes = e.data;
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const referenceSpace = renderer.xr.getReferenceSpace();
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console.log( `Detected ${detectedPlanes.size} planes` );
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detectedPlanes.forEach( plane => {
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if ( planesAdded.has( plane ) ) return;
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planesAdded.add( plane );
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const frame = renderer.xr.getFrame();
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const planePose = frame.getPose( plane.planeSpace, referenceSpace );
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const planeGeometry = new THREE.BufferGeometry();
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const polygon = plane.polygon;
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let minX = Number.MAX_SAFE_INTEGER;
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let maxX = Number.MIN_SAFE_INTEGER;
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let minZ = Number.MAX_SAFE_INTEGER;
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let maxZ = Number.MIN_SAFE_INTEGER;
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polygon.forEach( point => {
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minX = Math.min( minX, point.x );
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maxX = Math.max( maxX, point.x );
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minZ = Math.min( minZ, point.z );
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maxZ = Math.max( maxZ, point.z );
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} );
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const width = maxX - minX;
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const height = maxZ - minZ;
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const boxMesh = new THREE.Mesh(
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new THREE.BoxGeometry( width, 0.01, height ),
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new THREE.MeshBasicMaterial( { color: 0xffffff * Math.random() } )
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);
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boxMesh.matrixAutoUpdate = false;
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boxMesh.matrix.fromArray( planePose.transform.matrix );
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scene.add( boxMesh );
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} );
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} );
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}
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function onWindowResize() {
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camera.aspect = window.innerWidth / window.innerHeight;
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camera.updateProjectionMatrix();
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renderer.setSize( window.innerWidth, window.innerHeight );
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}
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//
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function animate() {
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renderer.setAnimationLoop( render );
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}
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function render() {
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renderer.render( scene, camera );
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}
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</script>
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</body>
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</html>
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