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.
119 lines
2.9 KiB
119 lines
2.9 KiB
<!DOCTYPE html>
|
|
<html lang="en">
|
|
<head>
|
|
<title>three.js webgl - worker - offscreen canvas</title>
|
|
<meta charset="utf-8">
|
|
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
|
|
<link type="text/css" rel="stylesheet" href="main.css">
|
|
<style>
|
|
body {
|
|
background-color: #fff;
|
|
color: #444;
|
|
}
|
|
|
|
a {
|
|
color: #08f;
|
|
}
|
|
|
|
canvas {
|
|
display: inline-block;
|
|
}
|
|
|
|
#message {
|
|
color: #ff0000;
|
|
display: none;
|
|
}
|
|
|
|
#message > a {
|
|
color: #ff0000;
|
|
}
|
|
|
|
#container {
|
|
position: absolute;
|
|
top: 50px;
|
|
bottom: 70px;
|
|
width: 100%;
|
|
}
|
|
|
|
#ui {
|
|
position: absolute;
|
|
bottom: 20px;
|
|
width: 100%;
|
|
text-align: center;
|
|
}
|
|
|
|
#button {
|
|
border: 0;
|
|
padding: 4px 6px;
|
|
background: #dddddd;
|
|
outline: none;
|
|
}
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<div id="info">
|
|
<a href="https://threejs.org" target="_blank" rel="noopener noreferrer">three.js</a> - offscreen canvas (<a href="https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas" target="_blank" rel="noopener noreferrer">about</a>)<br/>
|
|
<p id="message">Your browser does not support OffscreenCanvas. Check the browser support <a href="https://caniuse.com/#feat=offscreencanvas" target="_blank" rel="noopener noreferrer">here</a></p>
|
|
</div>
|
|
|
|
<div id="container">
|
|
<canvas id="canvas1" style="width: 50%; height: 100%"></canvas><canvas id="canvas2" style="width: 50%; height: 100%"></canvas>
|
|
</div>
|
|
<div id="ui">
|
|
<button id="button">START JANK</button><br/>
|
|
<span id="result"></span>
|
|
</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 initJank from 'three/addons/offscreen/jank.js';
|
|
import init from 'three/addons/offscreen/scene.js';
|
|
|
|
// onscreen
|
|
|
|
const canvas1 = document.getElementById( 'canvas1' );
|
|
const canvas2 = document.getElementById( 'canvas2' );
|
|
|
|
const width = canvas1.clientWidth;
|
|
const height = canvas1.clientHeight;
|
|
const pixelRatio = window.devicePixelRatio;
|
|
|
|
init( canvas1, width, height, pixelRatio, './' );
|
|
initJank();
|
|
|
|
// offscreen
|
|
|
|
if ( 'transferControlToOffscreen' in canvas2 ) {
|
|
|
|
const offscreen = canvas2.transferControlToOffscreen();
|
|
const worker = new Worker( 'jsm/offscreen/offscreen.js', { type: 'module' } );
|
|
worker.postMessage( {
|
|
drawingSurface: offscreen,
|
|
width: canvas2.clientWidth,
|
|
height: canvas2.clientHeight,
|
|
pixelRatio: window.devicePixelRatio,
|
|
path: '../../'
|
|
}, [ offscreen ] );
|
|
|
|
} else {
|
|
|
|
document.getElementById( 'message' ).style.display = 'block';
|
|
|
|
}
|
|
|
|
</script>
|
|
</body>
|
|
</html>
|
|
|