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<!-- 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 - WebXR - Basic - VR Optional</title>
<style>
html, body {
height: 100%;
margin: 0;
}
#c {
width: 100%;
height: 100%;
display: block;
}
.mode {
position: absolute;
right: 1em;
top: 1em;
}
</style>
</head>
<body>
<canvas id="c"></canvas>
<div class="mode">
<a href="?allowvr=true" id="vr">Allow VR</a>
<a href="?" id="nonvr">Use Non-VR Mode</a>
</div>
</body>
<!-- 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/": "../../examples/jsm/"
}
}
</script>
<script type="module">
import * as THREE from 'three';
import {VRButton} from 'three/addons/webxr/VRButton.js';
import {OrbitControls} from 'three/addons/controls/OrbitControls.js';
function main() {
const canvas = document.querySelector('#c');
const renderer = new THREE.WebGLRenderer({canvas});
const fov = 75;
const aspect = 2; // the canvas default
const near = 0.1;
const far = 5;
const camera = new THREE.PerspectiveCamera(fov, aspect, near, far);
camera.position.set(0, 1.6, 0);
const params = (new URL(document.location)).searchParams;
const allowvr = params.get('allowvr') === 'true';
if (allowvr) {
renderer.xr.enabled = true;
document.body.appendChild(VRButton.createButton(renderer));
document.querySelector('#vr').style.display = 'none';
} else {
// no VR, add some controls
const controls = new OrbitControls(camera, canvas);
controls.target.set(0, 1.6, -2);
controls.update();
document.querySelector('#nonvr').style.display = 'none';
}
const scene = new THREE.Scene();
{
const loader = new THREE.CubeTextureLoader();
const texture = loader.load([
'resources/images/grid-1024.png',
'resources/images/grid-1024.png',
'resources/images/grid-1024.png',
'resources/images/grid-1024.png',
'resources/images/grid-1024.png',
'resources/images/grid-1024.png',
]);
scene.background = texture;
}
{
const color = 0xFFFFFF;
const intensity = 1;
const light = new THREE.DirectionalLight(color, intensity);
light.position.set(-1, 2, 4);
scene.add(light);
}
const boxWidth = 1;
const boxHeight = 1;
const boxDepth = 1;
const geometry = new THREE.BoxGeometry(boxWidth, boxHeight, boxDepth);
function makeInstance(geometry, color, x) {
const material = new THREE.MeshPhongMaterial({color});
const cube = new THREE.Mesh(geometry, material);
scene.add(cube);
cube.position.x = x;
cube.position.y = 1.6;
cube.position.z = -2;
return cube;
}
const cubes = [
makeInstance(geometry, 0x44aa88, 0),
makeInstance(geometry, 0x8844aa, -2),
makeInstance(geometry, 0xaa8844, 2),
];
function resizeRendererToDisplaySize(renderer) {
const canvas = renderer.domElement;
const width = canvas.clientWidth;
const height = canvas.clientHeight;
const needResize = canvas.width !== width || canvas.height !== height;
if (needResize) {
renderer.setSize(width, height, false);
}
return needResize;
}
function render(time) {
time *= 0.001;
if (resizeRendererToDisplaySize(renderer)) {
const canvas = renderer.domElement;
camera.aspect = canvas.clientWidth / canvas.clientHeight;
camera.updateProjectionMatrix();
}
cubes.forEach((cube, ndx) => {
const speed = 1 + ndx * .1;
const rot = time * speed;
cube.rotation.x = rot;
cube.rotation.y = rot;
});
renderer.render(scene, camera);
}
renderer.setAnimationLoop(render);
}
main();
</script>
</html>