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129 lines
3.2 KiB
129 lines
3.2 KiB
2 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 webgl - materials - video - webcam</title>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
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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> webgl - video webcam input
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</div>
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<video id="video" style="display:none" autoplay playsinline></video>
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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 { OrbitControls } from 'three/addons/controls/OrbitControls.js';
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let camera, scene, renderer, video;
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init();
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animate();
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function init() {
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camera = new THREE.PerspectiveCamera( 60, window.innerWidth / window.innerHeight, 0.1, 100 );
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camera.position.z = 0.01;
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scene = new THREE.Scene();
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video = document.getElementById( 'video' );
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const texture = new THREE.VideoTexture( video );
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const geometry = new THREE.PlaneGeometry( 16, 9 );
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geometry.scale( 0.5, 0.5, 0.5 );
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const material = new THREE.MeshBasicMaterial( { map: texture } );
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const count = 128;
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const radius = 32;
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for ( let i = 1, l = count; i <= l; i ++ ) {
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const phi = Math.acos( - 1 + ( 2 * i ) / l );
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const theta = Math.sqrt( l * Math.PI ) * phi;
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const mesh = new THREE.Mesh( geometry, material );
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mesh.position.setFromSphericalCoords( radius, phi, theta );
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mesh.lookAt( camera.position );
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scene.add( mesh );
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}
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renderer = new THREE.WebGLRenderer( { antialias: true } );
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renderer.setPixelRatio( window.devicePixelRatio );
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renderer.setSize( window.innerWidth, window.innerHeight );
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document.body.appendChild( renderer.domElement );
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const controls = new OrbitControls( camera, renderer.domElement );
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controls.enableZoom = false;
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controls.enablePan = false;
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window.addEventListener( 'resize', onWindowResize );
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//
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if ( navigator.mediaDevices && navigator.mediaDevices.getUserMedia ) {
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const constraints = { video: { width: 1280, height: 720, facingMode: 'user' } };
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navigator.mediaDevices.getUserMedia( constraints ).then( function ( stream ) {
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// apply the stream to the video element used in the texture
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video.srcObject = stream;
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video.play();
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} ).catch( function ( error ) {
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console.error( 'Unable to access the camera/webcam.', error );
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} );
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} else {
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console.error( 'MediaDevices interface not available.' );
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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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function animate() {
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requestAnimationFrame( animate );
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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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