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example.html
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example.html
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<html>
<body>
<script src="three.js"></script>
<script>
let container, camera, scene, renderer, cubeMesh, iframe, fakeXrDisplay, session;
const layers = [];
async function _startFakeVrDisplay() {
fakeXrDisplay = new FakeXRDisplay();
fakeXrDisplay.width = window.innerWidth*2;
fakeXrDisplay.height = window.innerHeight;
fakeXrDisplay.position.copy(camera.position);
fakeXrDisplay.pushUpdate();
fakeXrDisplay.enable();
_enterXr();
}
async function _endFakeVrDisplay() {
renderer.vr.enabled = false;
renderer.vr.setAnimationLoop(null);
if (session) {
await session.end();
session = null;
} else if (display) {
await display.exitPresent();
display = null;
}
fakeXrDisplay.disable();
fakeXrDisplay = null;
}
async function _enterXr() {
session = await navigator.xr.requestSession({
exclusive: true,
});
session.layers = layers;
// console.log('request first frame');
session.requestAnimationFrame((timestamp, frame) => {
renderer.vr.setSession(session, {
frameOfReferenceType: 'stage',
});
const pose = frame.getViewerPose();
const viewport = session.baseLayer.getViewport(pose.views[0]);
// const width = viewport.width;
const height = viewport.height;
const fullWidth = (() => {
let result = 0;
for (let i = 0; i < pose.views.length; i++) {
result += session.baseLayer.getViewport(pose.views[i]).width;
}
return result;
})();
renderer.setSize(fullWidth, height);
/* viewportVector.set(fullWidth, height);
renderer.setAnimationLoop(null);
renderer.vr.enabled = true;
renderer.vr.setSession(session);
renderer.vr.setAnimationLoop(animate); */
console.log('loaded root in XR');
});
}
function init() {
container = document.createElement('div');
document.body.appendChild(container);
camera = new THREE.PerspectiveCamera(30, window.innerWidth / window.innerHeight, 0.1, 1000);
scene = new THREE.Scene();
// scene.background = new THREE.Color(0x3B3961);
const ambientLight = new THREE.AmbientLight(0x808080);
scene.add(ambientLight);
const directionalLight = new THREE.DirectionalLight(0xFFFFFF, 4);
directionalLight.position.set(1, 1, 1);
scene.add(directionalLight);
cubeMesh = (() => {
const geometry = new THREE.BoxBufferGeometry(0.1, 0.1, 0.1);
const material = new THREE.MeshPhongMaterial({
color: 0xff0000,
});
const mesh = new THREE.Mesh(geometry, material);
mesh.position.z = -1;
mesh.rotation.order = 'YXZ';
mesh.frustumCulled = false;
return mesh;
})();
scene.add(cubeMesh);
renderer = new THREE.WebGLRenderer({alpha: true});
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setPixelRatio(window.devicePixelRatio);
container.appendChild(renderer.domElement);
layers.push(renderer.domElement);
iframe = document.createElement('iframe');
iframe.d = 3;
iframe.src = 'example2.html';
iframe.onload = () => {
console.log('iframe loaded', iframe.src);
layers.push(iframe);
iframe.onload = null;
setTimeout(() => {
layers.splice(layers.indexOf(iframe), 1);
// iframe.contentWindow.destroy(); // XXX
iframe.src = 'example3.html';
}, 2000);
};
iframe.onerror = err => {
console.warn(err);
};
_startFakeVrDisplay();
}
function animate() {
/* renderer.state.reset();
camera.fov = fov;
camera.aspect = window.innerWidth / window.innerHeight; */
cubeMesh.rotation.x += 0.01;
cubeMesh.rotation.y += 0.01;
renderer.render(scene, camera);
camera.updateProjectionMatrix();
requestAnimationFrame(animate);
}
init();
animate();
</script>
</body>
</html>