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.
71 lines
1.6 KiB
71 lines
1.6 KiB
3 years ago
|
<!-- Licensed under a BSD license. See license.html for license -->
|
||
|
|
<!DOCTYPE html>
|
||
|
|
<html>
|
||
|
|
<head>
|
||
|
|
<meta charset="utf-8">
|
||
|
|
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes">
|
||
|
|
<title>Three.js - OffscreenCanvas w/Fallback</title>
|
||
|
|
<style>
|
||
|
|
html, body {
|
||
|
|
height: 100%;
|
||
|
|
margin: 0;
|
||
|
|
}
|
||
|
|
#c {
|
||
|
|
width: 100%;
|
||
|
|
height: 100%;
|
||
|
|
display: block;
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<canvas id="c"></canvas>
|
||
|
|
</body>
|
||
|
|
<script type="module">
|
||
|
|
import {init, state} from './shared-cubes.js';
|
||
|
|
|
||
|
|
function startWorker(canvas) {
|
||
|
|
const offscreen = canvas.transferControlToOffscreen();
|
||
|
|
const worker = new Worker('offscreencanvas-worker-cubes.js', {type: 'module'});
|
||
|
|
worker.postMessage({type: 'init', canvas: offscreen}, [offscreen]);
|
||
|
|
|
||
|
|
function sendSize() {
|
||
|
|
worker.postMessage({
|
||
|
|
type: 'size',
|
||
|
|
width: canvas.clientWidth,
|
||
|
|
height: canvas.clientHeight,
|
||
|
|
});
|
||
|
|
}
|
||
|
|
|
||
|
|
window.addEventListener('resize', sendSize);
|
||
|
|
sendSize();
|
||
|
|
|
||
|
|
console.log('using OffscreenCanvas'); /* eslint-disable-line no-console */
|
||
|
|
}
|
||
|
|
|
||
|
|
function startMainPage(canvas) {
|
||
|
|
init({canvas});
|
||
|
|
|
||
|
|
function sendSize() {
|
||
|
|
state.width = canvas.clientWidth;
|
||
|
|
state.height = canvas.clientHeight;
|
||
|
|
}
|
||
|
|
window.addEventListener('resize', sendSize);
|
||
|
|
sendSize();
|
||
|
|
|
||
|
|
console.log('using regular canvas'); /* eslint-disable-line no-console */
|
||
|
|
}
|
||
|
|
|
||
|
|
function main() { /* eslint consistent-return: 0 */
|
||
|
|
const canvas = document.querySelector('#c');
|
||
|
|
if (canvas.transferControlToOffscreen) {
|
||
|
|
startWorker(canvas);
|
||
|
|
} else {
|
||
|
|
startMainPage(canvas);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
main();
|
||
|
|
</script>
|
||
|
|
</html>
|
||
|
|
|