Files
archived-vdo.ninja/examples/webxr-ar-sender.html
2025-12-05 10:35:30 -05:00

580 lines
17 KiB
HTML

<!DOCTYPE html>
<html>
<head>
<title>WebXR AR 6DoF Sender</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<style>
* { margin: 0; padding: 0; box-sizing: border-box; }
body {
font-family: -apple-system, BlinkMacSystemFont, sans-serif;
background: #0f1724;
color: #e6f1ff;
min-height: 100vh;
overflow: hidden;
}
/* VDO.Ninja video layer (captures and shows webcam) */
#video-layer {
position: fixed;
top: 0; left: 0;
width: 100%; height: 100%;
z-index: 0;
background: #000;
}
#video-layer iframe {
width: 100%;
height: 100%;
border: none;
display: block;
background: #000;
}
/* Intro screen */
#intro {
position: fixed;
top: 0; left: 0;
width: 100%; height: 100%;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
padding: 20px;
text-align: center;
gap: 12px;
background: radial-gradient(circle at 30% 20%, rgba(78, 205, 196, 0.12), transparent 35%),
radial-gradient(circle at 70% 60%, rgba(255, 102, 170, 0.12), transparent 35%),
#0f1724;
z-index: 100;
}
#intro.hidden { display: none; }
h1 { color: #4ecdc4; margin: 0 0 6px 0; font-size: 22px; }
p { color: #9fb1c7; margin: 0 0 10px 0; line-height: 1.4; max-width: 360px; font-size: 14px; }
#status { color: #f39c12; font-size: 14px; }
#status.ok { color: #4ecdc4; }
.input-group {
width: 100%;
max-width: 300px;
margin: 10px 0;
}
.input-group label {
display: block;
font-size: 12px;
color: #9fb1c7;
margin-bottom: 6px;
text-align: left;
}
.input-group input {
width: 100%;
padding: 12px;
border: 1px solid #3d455a;
border-radius: 8px;
background: #111827;
color: #e6f1ff;
font-size: 16px;
}
#start-btn {
padding: 18px 38px;
font-size: 18px;
font-weight: bold;
background: #4ecdc4;
color: #0f1724;
border: none;
border-radius: 12px;
cursor: pointer;
box-shadow: 0 12px 30px rgba(78, 205, 196, 0.25);
margin-top: 10px;
}
#start-btn:disabled { background: #445268; color: #8894a7; cursor: not-allowed; box-shadow: none; }
/* HUD - visible during AR session */
#hud {
position: fixed;
bottom: 14px; left: 10px; right: 10px;
padding: 12px;
background: rgba(0, 0, 0, 0.8);
border-radius: 10px;
font-family: monospace;
font-size: 11px;
color: #4ecdc4;
z-index: 200;
display: none;
pointer-events: auto;
}
#hud.active { display: block; }
#hud .row { margin: 2px 0; }
#hud .label { color: #888; }
/* Exit button */
#exit-btn {
position: fixed;
top: 16px; right: 16px;
padding: 12px 18px;
background: rgba(231, 76, 60, 0.92);
border: none;
border-radius: 10px;
color: #fff;
font-weight: 700;
font-size: 14px;
z-index: 200;
display: none;
cursor: pointer;
pointer-events: auto;
}
#exit-btn.active { display: block; }
/* VDO.Ninja iframe - fullscreen camera */
#vdo-frame {
width: 100%;
height: 100%;
border: none;
display: block;
}
/* Overlay container for dom-overlay */
#overlay {
position: fixed;
top: 0; left: 0;
width: 100%; height: 100%;
z-index: 5;
pointer-events: none;
}
#overlay > * {
pointer-events: auto;
}
</style>
</head>
<body>
<!-- VDO.Ninja layer: handles the actual webcam/video stream -->
<div id="video-layer">
<iframe
id="vdo-frame"
allow="autoplay; camera; microphone; fullscreen; picture-in-picture; xr-spatial-tracking"
title="VDO.Ninja push"
playsinline
></iframe>
</div>
<!-- DOM Overlay container - contains everything that should appear over WebXR -->
<div id="overlay">
<div id="intro">
<h1>WebXR AR 6DoF Sender</h1>
<p>Streams camera + 6DoF pose data via VDO.Ninja. Requires ARCore (Android) or ARKit (iOS) support.</p>
<div class="input-group">
<label for="stream-id">Stream ID</label>
<input id="stream-id" type="text" placeholder="Enter stream ID">
</div>
<button id="start-btn" disabled>Checking AR support...</button>
<div id="status"></div>
</div>
<button id="exit-btn">Exit AR</button>
<div id="hud">
<div class="row"><span class="label">Pos:</span> <span id="pos">--</span></div>
<div class="row"><span class="label">Rot:</span> <span id="rot">--</span></div>
<div class="row"><span class="label">Rate:</span> <span id="rate">--</span></div>
<div class="row"><span class="label">Sent:</span> <span id="sent">0</span> <span class="label">Dropped:</span> <span id="dropped">0</span></div>
<div class="row" style="margin-top:8px;">
<span class="label">Vertical FOV:</span> <span id="fov-value">40</span>°
<input type="range" id="fov-slider" min="20" max="120" value="40" style="width:100%;margin-top:4px;">
</div>
<div class="row" style="font-size:9px;color:#666;">↑ increase if AR moves too fast, ↓ decrease if AR moves too slow</div>
</div>
</div><!-- end overlay -->
<script type="module">
import * as THREE from "https://cdn.jsdelivr.net/npm/three@0.160.0/build/three.module.js";
const intro = document.getElementById("intro");
const startBtn = document.getElementById("start-btn");
const statusEl = document.getElementById("status");
const exitBtn = document.getElementById("exit-btn");
const hud = document.getElementById("hud");
const streamIdInput = document.getElementById("stream-id");
const vdoFrame = document.getElementById("vdo-frame");
let renderer, scene, camera, arButton;
let animId = null;
// Stats
let poseCount = 0;
let lastTick = performance.now();
let fps = 0;
let messagesSent = 0;
let messagesDropped = 0;
// Throttling
let lastSendTime = 0;
const MIN_SEND_INTERVAL = 33; // ~30 Hz
let pendingPose = null;
// Scene objects
let cube, torus, cone;
// Orientation state (non-immersive fallback so VDO can own the camera)
let hasOrientation = false;
const currentPose = {
position: new THREE.Vector3(0, 0, 0),
quaternion: new THREE.Quaternion()
};
function buildRenderer() {
renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
renderer.setPixelRatio(window.devicePixelRatio);
renderer.setSize(window.innerWidth, window.innerHeight);
renderer.setClearColor(0x000000, 0);
renderer.domElement.id = "ar-canvas";
renderer.domElement.style.position = "fixed";
renderer.domElement.style.top = "0";
renderer.domElement.style.left = "0";
renderer.domElement.style.width = "100%";
renderer.domElement.style.height = "100%";
renderer.domElement.style.zIndex = "2";
renderer.domElement.style.pointerEvents = "none";
document.body.appendChild(renderer.domElement);
}
// FOV - Direct vertical FOV control
// Three.js PerspectiveCamera uses VERTICAL FOV
// Let user calibrate directly since camera FOV varies by device and orientation
let currentFOV = 40; // Starting guess - adjust until AR matches camera motion
function updateCameraFOV(verticalFOV) {
currentFOV = verticalFOV;
console.log(`Camera vertical FOV set to: ${verticalFOV}°`);
if (camera) {
camera.fov = verticalFOV;
camera.updateProjectionMatrix();
}
// Send vertical FOV to receiver so it can match
if (vdoFrame && vdoFrame.contentWindow) {
vdoFrame.contentWindow.postMessage({ arFOV: verticalFOV }, '*');
}
}
function buildScene() {
scene = new THREE.Scene();
const aspectRatio = window.innerWidth / window.innerHeight;
console.log(`Initial FOV: ${currentFOV}° vertical, aspect: ${aspectRatio.toFixed(2)}`);
camera = new THREE.PerspectiveCamera(currentFOV, aspectRatio, 0.1, 100);
camera.position.set(0, 0, 0);
// Lighting
const hemi = new THREE.HemisphereLight(0xffffff, 0x444444, 1.2);
scene.add(hemi);
const dir = new THREE.DirectionalLight(0xffffff, 0.8);
dir.position.set(5, 10, 5);
scene.add(dir);
// === OBJECTS SPREAD IN 360° AT VARIOUS DISTANCES ===
// All objects use MeshBasicMaterial for consistent visibility
// FRONT (-Z direction)
cube = new THREE.Mesh(
new THREE.BoxGeometry(1, 1, 1),
new THREE.MeshBasicMaterial({ color: 0xff0000 })
);
cube.position.set(0, 0, -8); // 8m in front
scene.add(cube);
// FRONT-RIGHT
const sphere = new THREE.Mesh(
new THREE.SphereGeometry(0.8, 32, 32),
new THREE.MeshBasicMaterial({ color: 0x00ff00 })
);
sphere.position.set(5, 1, -6); // 5m right, 6m forward
scene.add(sphere);
// RIGHT (+X direction)
torus = new THREE.Mesh(
new THREE.TorusGeometry(1, 0.3, 16, 32),
new THREE.MeshBasicMaterial({ color: 0xffff00 })
);
torus.position.set(10, 0, 0); // 10m to the right
scene.add(torus);
// BACK-RIGHT
const cylinder = new THREE.Mesh(
new THREE.CylinderGeometry(0.5, 0.5, 3, 32),
new THREE.MeshBasicMaterial({ color: 0x00ffff })
);
cylinder.position.set(6, 0, 8); // Behind and right
scene.add(cylinder);
// BACK (+Z direction)
cone = new THREE.Mesh(
new THREE.ConeGeometry(1, 2, 32),
new THREE.MeshBasicMaterial({ color: 0xff00ff })
);
cone.position.set(0, 0, 12); // 12m behind
scene.add(cone);
// BACK-LEFT
const octahedron = new THREE.Mesh(
new THREE.OctahedronGeometry(1),
new THREE.MeshBasicMaterial({ color: 0xff8800 })
);
octahedron.position.set(-7, 1, 7); // Behind and left
scene.add(octahedron);
// LEFT (-X direction)
const dodecahedron = new THREE.Mesh(
new THREE.DodecahedronGeometry(0.8),
new THREE.MeshBasicMaterial({ color: 0x8800ff })
);
dodecahedron.position.set(-10, 0, 0); // 10m to the left
scene.add(dodecahedron);
// FRONT-LEFT
const icosahedron = new THREE.Mesh(
new THREE.IcosahedronGeometry(0.7),
new THREE.MeshBasicMaterial({ color: 0x0088ff })
);
icosahedron.position.set(-5, -1, -7); // Front-left, slightly lower
scene.add(icosahedron);
// UP (above)
const ring = new THREE.Mesh(
new THREE.TorusGeometry(2, 0.2, 16, 32),
new THREE.MeshBasicMaterial({ color: 0xffffff })
);
ring.position.set(0, 8, 0); // 8m above
ring.rotation.x = Math.PI / 2; // Flat horizontal
scene.add(ring);
// DOWN (below) - Ground grid
const grid = new THREE.GridHelper(50, 50, 0x4ecdc4, 0x333333);
grid.position.y = -2; // 2m below camera
grid.material.opacity = 0.5;
grid.material.transparent = true;
scene.add(grid);
console.log('Scene built with', scene.children.length, 'objects in 360° space');
}
function sendPose(poseData) {
const now = Date.now();
const timeSinceLastSend = now - lastSendTime;
if (timeSinceLastSend < MIN_SEND_INTERVAL) {
pendingPose = poseData;
messagesDropped++;
document.getElementById('dropped').textContent = messagesDropped;
return;
}
const poseToSend = pendingPose || poseData;
pendingPose = null;
doSendPose(poseToSend);
lastSendTime = now;
setTimeout(flushPendingPose, MIN_SEND_INTERVAL);
}
function flushPendingPose() {
if (pendingPose && Date.now() - lastSendTime >= MIN_SEND_INTERVAL) {
const pose = pendingPose;
pendingPose = null;
doSendPose(pose);
lastSendTime = Date.now();
}
}
function doSendPose(poseData) {
if (vdoFrame && vdoFrame.contentWindow) {
try {
const msg = { sensors: { pose: poseData, UUID: 'webxr-sender' } };
vdoFrame.contentWindow.postMessage(msg, '*');
messagesSent++;
document.getElementById('sent').textContent = messagesSent;
} catch (e) {
console.error('postMessage failed:', e);
}
}
}
function animate(time) {
const now = performance.now();
// Build a pose from latest orientation (no positional tracking)
if (hasOrientation) {
const p = currentPose.position;
const o = currentPose.quaternion;
document.getElementById('pos').textContent =
`X ${p.x.toFixed(2)} Y ${p.y.toFixed(2)} Z ${p.z.toFixed(2)}`;
document.getElementById('rot').textContent =
`x${o.x.toFixed(2)} y${o.y.toFixed(2)} z${o.z.toFixed(2)} w${o.w.toFixed(2)}`;
sendPose({
t: Date.now(),
p: { x: p.x, y: p.y, z: p.z },
q: { x: o.x, y: o.y, z: o.z, w: o.w },
fov: currentFOV // Include FOV so receiver can match
});
}
// FPS counter
poseCount++;
if (now - lastTick > 1000) {
fps = poseCount;
poseCount = 0;
lastTick = now;
document.getElementById('rate').textContent = `${fps} fps`;
}
// Apply orientation to camera
if (camera && hasOrientation) {
camera.quaternion.copy(currentPose.quaternion);
}
// Objects stay FIXED in world space - no animation
// This ensures sender and receiver views match exactly
renderer.render(scene, camera);
animId = requestAnimationFrame(animate);
}
function startSensors() {
// Reusable quaternions for orientation calculation
const zee = new THREE.Vector3(0, 0, 1);
const q0 = new THREE.Quaternion();
const q1 = new THREE.Quaternion(-Math.sqrt(0.5), 0, 0, Math.sqrt(0.5)); // -90deg around X
const euler = new THREE.Euler();
function handleOrientation(evt) {
if (evt.alpha === null) return;
const alpha = THREE.MathUtils.degToRad(evt.alpha); // Z axis (compass)
const beta = THREE.MathUtils.degToRad(evt.beta); // X axis (tilt front/back)
const gamma = THREE.MathUtils.degToRad(evt.gamma); // Y axis (tilt left/right)
// Standard Three.js device orientation conversion
euler.set(beta, alpha, -gamma, 'YXZ');
currentPose.quaternion.setFromEuler(euler);
// Rotate to align camera (phone held upright, looking through rear camera)
currentPose.quaternion.multiply(q1);
// Adjust for screen orientation
const screenOrientation = window.screen?.orientation?.angle || window.orientation || 0;
q0.setFromAxisAngle(zee, -THREE.MathUtils.degToRad(screenOrientation));
currentPose.quaternion.multiply(q0);
hasOrientation = true;
}
if (typeof DeviceOrientationEvent !== "undefined" && typeof DeviceOrientationEvent.requestPermission === "function") {
DeviceOrientationEvent.requestPermission().then(result => {
if (result === "granted") {
window.addEventListener("deviceorientation", handleOrientation, true);
} else {
statusEl.textContent = "Motion permission denied; pose data unavailable.";
}
}).catch(err => {
statusEl.textContent = "Motion permission error: " + err;
});
} else {
window.addEventListener("deviceorientation", handleOrientation, true);
}
}
function startVDO() {
const streamId = streamIdInput.value.trim();
if (!streamId) return;
// Construct URL for VDO.Ninja - data relay only (no camera needed here)
const pathParts = window.location.pathname.split('/');
pathParts.pop();
pathParts.pop();
const basePath = pathParts.join('/') || '';
// Full webcam capture lives inside the iframe; parent only overlays Three.js
// facing=environment for rear camera
const url = `${window.location.origin}${basePath}/?push=${encodeURIComponent(streamId)}&facing=environment&webxrbridge=1&autostart=1&mute=1`;
console.log('VDO.Ninja URL:', url);
vdoFrame.src = url;
}
async function startAR() {
const streamId = streamIdInput.value.trim();
if (!streamId) {
statusEl.textContent = 'Please enter a stream ID';
return;
}
try {
startBtn.disabled = true;
startBtn.textContent = "Starting...";
// Build renderer and scene
if (!renderer) {
buildRenderer();
buildScene();
hud.classList.add('active');
exitBtn.classList.add('active');
}
// Start VDO.Ninja for data relay + video
startVDO();
// Start sensors + animation loop
startSensors();
if (!animId) {
animId = requestAnimationFrame(animate);
}
intro.classList.add('hidden');
} catch (e) {
statusEl.textContent = "Failed to start AR: " + e.message;
startBtn.disabled = false;
startBtn.textContent = "Start AR Stream";
}
}
async function checkSupport() {
startBtn.disabled = false;
startBtn.textContent = "Start AR Stream";
statusEl.textContent = "Uses device motion for pose; camera stays with VDO.Ninja.";
statusEl.classList.add('ok');
}
// Event listeners
startBtn.addEventListener('click', startAR);
// FOV calibration slider - direct vertical FOV control
document.getElementById('fov-slider').addEventListener('input', (e) => {
const fov = parseInt(e.target.value);
document.getElementById('fov-value').textContent = fov;
updateCameraFOV(fov);
});
exitBtn.addEventListener('click', () => {
if (animId) {
cancelAnimationFrame(animId);
animId = null;
}
hud.classList.remove('active');
exitBtn.classList.remove('active');
intro.classList.remove('hidden');
startBtn.disabled = false;
startBtn.textContent = "Start AR Stream";
});
window.addEventListener('resize', () => {
if (camera && renderer) {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
}
});
// Check AR support on load
await checkSupport();
</script>
</body>
</html>