You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
180 lines
4.0 KiB
180 lines
4.0 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js ar - hit test</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 - hit test<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 { ARButton } from 'three/addons/webxr/ARButton.js';
|
|
|
|
let container;
|
|
let camera, scene, renderer;
|
|
let controller;
|
|
|
|
let reticle;
|
|
|
|
let hitTestSource = null;
|
|
let hitTestSourceRequested = false;
|
|
|
|
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 );
|
|
|
|
const light = new THREE.HemisphereLight( 0xffffff, 0xbbbbff, 1 );
|
|
light.position.set( 0.5, 1, 0.25 );
|
|
scene.add( light );
|
|
|
|
//
|
|
|
|
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, { requiredFeatures: [ 'hit-test' ] } ) );
|
|
|
|
//
|
|
|
|
const geometry = new THREE.CylinderGeometry( 0.1, 0.1, 0.2, 32 ).translate( 0, 0.1, 0 );
|
|
|
|
function onSelect() {
|
|
|
|
if ( reticle.visible ) {
|
|
|
|
const material = new THREE.MeshPhongMaterial( { color: 0xffffff * Math.random() } );
|
|
const mesh = new THREE.Mesh( geometry, material );
|
|
reticle.matrix.decompose( mesh.position, mesh.quaternion, mesh.scale );
|
|
mesh.scale.y = Math.random() * 2 + 1;
|
|
scene.add( mesh );
|
|
|
|
}
|
|
|
|
}
|
|
|
|
controller = renderer.xr.getController( 0 );
|
|
controller.addEventListener( 'select', onSelect );
|
|
scene.add( controller );
|
|
|
|
reticle = new THREE.Mesh(
|
|
new THREE.RingGeometry( 0.15, 0.2, 32 ).rotateX( - Math.PI / 2 ),
|
|
new THREE.MeshBasicMaterial()
|
|
);
|
|
reticle.matrixAutoUpdate = false;
|
|
reticle.visible = false;
|
|
scene.add( reticle );
|
|
|
|
//
|
|
|
|
window.addEventListener( 'resize', onWindowResize );
|
|
|
|
}
|
|
|
|
function onWindowResize() {
|
|
|
|
camera.aspect = window.innerWidth / window.innerHeight;
|
|
camera.updateProjectionMatrix();
|
|
|
|
renderer.setSize( window.innerWidth, window.innerHeight );
|
|
|
|
}
|
|
|
|
//
|
|
|
|
function animate() {
|
|
|
|
renderer.setAnimationLoop( render );
|
|
|
|
}
|
|
|
|
function render( timestamp, frame ) {
|
|
|
|
if ( frame ) {
|
|
|
|
const referenceSpace = renderer.xr.getReferenceSpace();
|
|
const session = renderer.xr.getSession();
|
|
|
|
if ( hitTestSourceRequested === false ) {
|
|
|
|
session.requestReferenceSpace( 'viewer' ).then( function ( referenceSpace ) {
|
|
|
|
session.requestHitTestSource( { space: referenceSpace } ).then( function ( source ) {
|
|
|
|
hitTestSource = source;
|
|
|
|
} );
|
|
|
|
} );
|
|
|
|
session.addEventListener( 'end', function () {
|
|
|
|
hitTestSourceRequested = false;
|
|
hitTestSource = null;
|
|
|
|
} );
|
|
|
|
hitTestSourceRequested = true;
|
|
|
|
}
|
|
|
|
if ( hitTestSource ) {
|
|
|
|
const hitTestResults = frame.getHitTestResults( hitTestSource );
|
|
|
|
if ( hitTestResults.length ) {
|
|
|
|
const hit = hitTestResults[ 0 ];
|
|
|
|
reticle.visible = true;
|
|
reticle.matrix.fromArray( hit.getPose( referenceSpace ).transform.matrix );
|
|
|
|
} else {
|
|
|
|
reticle.visible = false;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
renderer.render( scene, camera );
|
|
|
|
}
|
|
|
|
</script>
|
|
</body>
|
|
</html>
|
|
|