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<!DOCTYPE html>
<html>
<head>
<title>RuView — Camera + WiFi CSI Point Cloud</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate">
<meta name="ruview-viewer-version" content="0.2.0-face-mesh">
<!-- Inline amber-dot favicon avoids a stray /favicon.ico 404 in the console. -->
<link rel="icon" type="image/svg+xml" href="data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 32 32'><circle cx='16' cy='16' r='10' fill='%23e8a634'/></svg>">
<style>
body { margin: 0; background: #0a0a0a; color: #e8a634; font-family: monospace; }
canvas { display: block; }
#info { position: absolute; top: 10px; left: 10px; padding: 12px; background: rgba(0,0,0,0.85); border: 1px solid #e8a634; border-radius: 6px; min-width: 240px; font-size: 13px; line-height: 1.5; z-index: 10; }
#cam-cta { position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%); padding: 10px 18px; background: #e8a634; color: #0a0a0a; border: none; border-radius: 4px; font-family: monospace; font-size: 14px; font-weight: bold; cursor: pointer; z-index: 10; }
#cam-cta:hover { background: #ffc04d; }
#cam-cta.hidden { display: none; }
#esp-cta { position: absolute; bottom: 16px; right: 16px; padding: 8px 14px; background: transparent; color: #e8a634; border: 1px solid #e8a634; border-radius: 4px; font-family: monospace; font-size: 12px; cursor: pointer; z-index: 10; }
#esp-cta:hover { background: rgba(232, 166, 52, 0.12); }
#esp-cta.connected { background: #4f4; color: #0a0a0a; border-color: #4f4; }
.live { color: #4f4; } .demo { color: #f44; }
.face { color: #4cf; }
.section { margin-top: 6px; padding-top: 6px; border-top: 1px solid #333; }
.label { color: #888; }
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r128/three.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.128.0/examples/js/controls/OrbitControls.js"></script>
<!-- MediaPipe Face Mesh — runs in demo mode so each visitor sees their own face as a point cloud -->
<script src="https://cdn.jsdelivr.net/npm/@mediapipe/face_mesh@0.4/face_mesh.js"></script>
<script src="https://cdn.jsdelivr.net/npm/@mediapipe/camera_utils@0.3/camera_utils.js"></script>
</head>
<body>
<div id="info">
<h3 style="margin:0 0 4px 0">RuView · Seldon Vault</h3>
<div style="font-size: 11px; color: #888; margin-bottom: 8px; max-width: 240px; line-height: 1.4; font-style: italic;">"Psychohistory deals with reactions of human conglomerates to fixed social and economic stimuli." — Hari Seldon</div>
<div id="stats">Loading...</div>
</div>
<button id="cam-cta">▶ Project Subject — render your face into the Vault</button>
<button id="esp-cta" title="Stream live CSI from a local ruview-pointcloud serve instance (e.g. http://127.0.0.1:9880)">📡 Connect ESP32…</button>
<script>
var scene = new THREE.Scene();
scene.background = new THREE.Color(0x0a0a0a);
var camera = new THREE.PerspectiveCamera(72, window.innerWidth/window.innerHeight, 0.1, 200);
camera.position.set(0, 0.2, -3.5);
camera.lookAt(0, 0, 2);
var renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
var controls = new THREE.OrbitControls(camera, renderer.domElement);
controls.enableDamping = true;
controls.target.set(0, 0, 2);
var pointsMesh = null;
var lastFrame = -1;
var skeletonGroup = null;
var prevTimestamp = 0;
var frameRateVal = 0;
// COCO skeleton connections: pairs of keypoint indices
// 0=nose 1=leftEye 2=rightEye 3=leftEar 4=rightEar
// 5=leftShoulder 6=rightShoulder 7=leftElbow 8=rightElbow
// 9=leftWrist 10=rightWrist 11=leftHip 12=rightHip
// 13=leftKnee 14=rightKnee 15=leftAnkle 16=rightAnkle
var COCO_BONES = [
[0,1],[0,2],[1,3],[2,4],
[5,6],[5,7],[7,9],[6,8],[8,10],
[5,11],[6,12],[11,12],
[11,13],[13,15],[12,14],[14,16]
];
function clearSkeleton() {
if (skeletonGroup) {
scene.remove(skeletonGroup);
skeletonGroup.traverse(function(obj) {
if (obj.geometry) obj.geometry.dispose();
if (obj.material) obj.material.dispose();
});
skeletonGroup = null;
}
}
function drawSkeleton(keypoints) {
clearSkeleton();
if (!keypoints || keypoints.length < 17) return;
skeletonGroup = new THREE.Group();
// Map keypoints from [0,1] to scene coords
// x: [-2, 2], y: [2, -2] (flip y), z: fixed at 2
var sphereGeo = new THREE.SphereGeometry(0.04, 8, 8);
var sphereMat = new THREE.MeshBasicMaterial({ color: 0xffff00 });
var positions3D = [];
var i, kp, sx, sy;
for (i = 0; i < 17; i++) {
kp = keypoints[i];
if (!kp) { positions3D.push(null); continue; }
sx = (kp[0] - 0.5) * 4;
sy = (0.5 - kp[1]) * 4;
positions3D.push([sx, sy, 2]);
var sphere = new THREE.Mesh(sphereGeo, sphereMat);
sphere.position.set(sx, sy, 2);
skeletonGroup.add(sphere);
}
// Draw bones as white lines
var lineMat = new THREE.LineBasicMaterial({ color: 0xffffff, linewidth: 2 });
var b, a, bIdx;
for (b = 0; b < COCO_BONES.length; b++) {
a = COCO_BONES[b][0];
bIdx = COCO_BONES[b][1];
if (!positions3D[a] || !positions3D[bIdx]) continue;
var lineGeo = new THREE.BufferGeometry();
var verts = new Float32Array([
positions3D[a][0], positions3D[a][1], positions3D[a][2],
positions3D[bIdx][0], positions3D[bIdx][1], positions3D[bIdx][2]
]);
lineGeo.setAttribute("position", new THREE.BufferAttribute(verts, 3));
var line = new THREE.Line(lineGeo, lineMat);
skeletonGroup.add(line);
}
scene.add(skeletonGroup);
}
// ----- Transport configuration -----
// ?backend=<url> → fetch splats from <url>/api/splats (CORS-permitting host)
// ?backend=auto → try /api/splats, fall back to synthetic demo on failure (default)
// ?backend=demo → always render synthetic demo (no network)
// ?live=1 → require live; show error instead of demo fallback
var urlParams = new URLSearchParams(window.location.search);
var backendArg = urlParams.get("backend") || "auto";
var requireLive = urlParams.get("live") === "1";
var transportMode = "demo"; // resolved at first fetch: "live" | "remote" | "demo"
var demoStartMs = Date.now();
var demoFrameNum = 0;
var latestFaceLandmarks = null; // populated by MediaPipe when camera enabled
var faceMeshState = "idle"; // "idle" | "starting" | "running" | "denied" | "unavailable"
// ----- MediaPipe Face Mesh (browser equivalent of camera-depth backprojection) -----
// Locally, ruview-pointcloud serve fuses real camera depth + WiFi CSI. In the
// browser we don't have depth from a webcam, but Face Mesh produces 468
// 3D landmarks (x,y in [0,1], z roughly in [-0.5,0.5]) at ~30 fps — enough to
// reproduce the "I can see the outline of my face in points" experience. The
// landmarks feed into the same splat render path as live /api/splats data.
async function startFaceMesh() {
if (faceMeshState !== "idle") return;
if (!window.FaceMesh || !window.Camera) {
faceMeshState = "unavailable";
return;
}
faceMeshState = "starting";
try {
var videoEl = document.createElement("video");
videoEl.style.display = "none";
videoEl.autoplay = true;
videoEl.playsInline = true;
videoEl.muted = true;
document.body.appendChild(videoEl);
var fm = new FaceMesh({
locateFile: function(file) {
return "https://cdn.jsdelivr.net/npm/@mediapipe/face_mesh@0.4/" + file;
}
});
fm.setOptions({
maxNumFaces: 1,
refineLandmarks: true,
minDetectionConfidence: 0.5,
minTrackingConfidence: 0.5
});
fm.onResults(function(results) {
if (results.multiFaceLandmarks && results.multiFaceLandmarks[0]) {
latestFaceLandmarks = results.multiFaceLandmarks[0];
}
});
var mpCamera = new Camera(videoEl, {
onFrame: async function() { await fm.send({ image: videoEl }); },
width: 640,
height: 480
});
await mpCamera.start();
faceMeshState = "running";
var btn = document.getElementById("cam-cta");
if (btn) btn.classList.add("hidden");
} catch (err) {
faceMeshState = "denied";
console.warn("Face mesh unavailable:", err);
}
}
// ---- Foundation-inspired galactic context (Asimov / Trantor / Seldon) ----
// Shared between face-mesh and synthetic-fallback paths. The subject (face
// or procedural figure) is the foreground; this function paints the Seldon
// time-vault around it: holographic surveyor grid underfoot, slow galactic
// spiral receding into the distance, distant starfield, and a halo ring.
function pushFoundationContext(splats) {
var t = (Date.now() - demoStartMs) / 1000.0;
// 1. Holographic surveyor grid — amber lattice at y=+1.4 (renders below
// the subject because the renderer flips y to Three.js Y-up).
var gx, gz;
for (gx = -10; gx <= 10; gx++) {
for (gz = 0; gz <= 30; gz++) {
var alpha = 0.35 + 0.15 * Math.sin(t * 0.5 + gz * 0.2);
splats.push({
center: [gx * 0.5, 1.4, gz * 0.4],
color: [0.40 * alpha, 0.28 * alpha, 0.10 * alpha],
opacity: 1.0,
scale: [0.018, 0.018, 0.018]
});
}
}
for (gz = 0; gz <= 30; gz += 2) {
for (gx = -20; gx <= 20; gx++) {
splats.push({
center: [gx * 0.25, 1.4, gz * 0.4 + 0.1],
color: [0.30, 0.22, 0.08],
opacity: 1.0,
scale: [0.014, 0.014, 0.014]
});
}
}
// 2. Galactic spiral — Trantor recedes behind the subject. ~640 stars
// across two logarithmic arms, slowly rotating. Warmer at the core,
// cooler at the edges (Hertzsprung-Russell-ish).
var arm, k, theta_arm, r_arm, sx, sz, twist, arm_color;
for (arm = 0; arm < 2; arm++) {
for (k = 0; k < 320; k++) {
var prog = k / 320;
theta_arm = arm * Math.PI + prog * 6.0 + t * 0.05;
r_arm = 4.0 + prog * 14.0;
twist = Math.sin(prog * 8.0) * 0.4;
sx = Math.cos(theta_arm) * r_arm + twist;
sz = Math.sin(theta_arm) * r_arm + 12.0;
var coreFade = Math.max(0.15, 1.0 - prog);
arm_color = [
coreFade * 0.85 + 0.15 * (1 - prog),
coreFade * 0.70 + 0.20,
coreFade * 0.55 + 0.45 * prog
];
splats.push({
center: [sx, -2.5 + Math.sin(prog * 12) * 0.3, sz],
color: arm_color,
opacity: 1.0,
scale: [0.025, 0.025, 0.025]
});
}
}
// 3. Distant starfield — 800 deterministic stars on a spherical shell.
// Fixed LCG seed so visitors don't see noise flicker between frames.
var seed = 42;
function nextRand() {
seed = (seed * 1664525 + 1013904223) >>> 0;
return seed / 4294967296;
}
var s, r_s, phi, costheta, sinphi;
for (s = 0; s < 800; s++) {
phi = nextRand() * Math.PI * 2;
costheta = nextRand() * 2 - 1;
sinphi = Math.sqrt(1 - costheta * costheta);
r_s = 22 + nextRand() * 8;
var brightness = 0.4 + nextRand() * 0.6;
var hue = nextRand();
splats.push({
center: [
Math.cos(phi) * sinphi * r_s,
costheta * r_s * 0.5 - 1.0,
Math.sin(phi) * sinphi * r_s + 5.0
],
color: hue > 0.85
? [brightness, brightness * 0.85, brightness * 0.6]
: (hue > 0.3
? [brightness * 0.9, brightness * 0.95, brightness]
: [brightness * 0.5, brightness * 0.7, brightness]),
opacity: 1.0,
scale: [0.020, 0.020, 0.020]
});
}
// 4. Holographic projection halo around the subject — Seldon vault
// projections always had a faint encircling ring of particles.
var ring;
for (ring = 0; ring < 60; ring++) {
var rt = ring / 60 * Math.PI * 2 + t * 0.3;
splats.push({
center: [
Math.cos(rt) * 1.6,
Math.sin(rt) * 1.2 - 0.2,
2.0 + Math.sin(rt * 3 + t * 0.5) * 0.3
],
color: [0.95, 0.55, 0.15],
opacity: 1.0,
scale: [0.014, 0.014, 0.014]
});
}
}
// Map a single landmark to world coords. Coord conventions:
// x: 0.5 - lm.x → mirror so left-of-screen = your left side (selfie)
// y: lm.y - 0.5 → keep MediaPipe's y-DOWN convention; the renderer's
// existing -y flip in updateSplats does the single flip
// to Three.js Y-up. Pre-flipping here would double-flip
// and the face would render upside down.
// z: 2.0 + lm.z*8 → amplify lm.z (~[-0.1,+0.1]) so the nose/eye-socket
// depth is visible from an oblique camera angle.
function lmToCenter(lm) {
return [
(0.5 - lm.x) * 4.0,
(lm.y - 0.5) * 3.0,
2.0 + lm.z * 8.0
];
}
function pushFaceSplat(splats, center, alpha) {
splats.push({
center: center,
color: [0.95 * alpha, 0.65 * alpha, 0.20 * alpha],
opacity: 1.0,
scale: [0.006, 0.006, 0.006]
});
}
// FACEMESH_TESSELATION is a flat array [a0,b0, a1,b1, ...] of vertex indices
// forming edges of the triangulated face mesh. ~1300 edges × 2 = 2600 entries.
// We interpolate 6 splats per edge → ~8000 splats per face vs 478 vertices.
var FACE_EDGES = (typeof FACEMESH_TESSELATION !== "undefined") ? FACEMESH_TESSELATION : null;
// Push the user's face mesh point cloud into `splats` (no Foundation
// context — that is the demo path's responsibility). Used both as the
// demo subject AND as an overlay on top of live/remote backend data
// when the camera is enabled. Returns true if any splats were pushed.
function pushFaceSplats(splats) {
if (faceMeshState !== "running" || !latestFaceLandmarks) return false;
var lms = latestFaceLandmarks;
var i;
// 1. Original 478 vertices — bright anchor points for features.
for (i = 0; i < lms.length; i++) {
splats.push({
center: lmToCenter(lms[i]),
color: [1.0, 0.72, 0.25],
opacity: 1.0,
scale: [0.010, 0.010, 0.010]
});
}
// 2. Edge interpolation — 6 splats per FACEMESH_TESSELATION edge.
if (FACE_EDGES) {
var edgeCount = FACE_EDGES.length;
var SAMPLES = 6;
var e, a, b, t, f;
for (e = 0; e < edgeCount; e += 2) {
a = lms[FACE_EDGES[e]];
b = lms[FACE_EDGES[e + 1]];
if (!a || !b) continue;
var aPos = lmToCenter(a);
var bPos = lmToCenter(b);
var ax = aPos[0], ay = aPos[1], az = aPos[2];
var bx = bPos[0], by = bPos[1], bz = bPos[2];
for (t = 1; t <= SAMPLES; t++) {
f = t / (SAMPLES + 1);
pushFaceSplat(splats, [
ax * (1 - f) + bx * f,
ay * (1 - f) + by * f,
az * (1 - f) + bz * f
], 0.85);
}
}
}
return true;
}
function faceMeshFrame() {
if (faceMeshState !== "running" || !latestFaceLandmarks) return null;
var splats = [];
pushFaceSplats(splats);
pushFoundationContext(splats);
demoFrameNum += 1;
return {
splats: splats,
count: splats.length,
frame: demoFrameNum,
live: false,
source: "face-mesh",
pipeline: {
skeleton: null,
vitals: { breathing_rate: 14, motion_score: 0.15 }
}
};
}
function buildSplatsUrl() {
if (backendArg === "demo") return null;
if (backendArg === "auto") return "/api/splats";
// User-supplied URL — strip trailing slash and append /api/splats.
var base = backendArg.replace(/\/+$/, "");
return base + "/api/splats";
}
function syntheticFrame() {
// Used when camera permission is denied / unavailable. Renders a
// procedural standing figure inside the Seldon vault context.
// y-down convention: head at small/negative y, feet at large/positive y;
// the renderer flips y so head ends up at the top of the screen.
var t = (Date.now() - demoStartMs) / 1000.0;
var sway = Math.sin(t * 0.8) * 0.05;
var breath = Math.sin(t * 1.2) * 0.015;
var splats = [];
// Standing figure — 240 points in a vertical cylinder, denser than
// before to feel like a holographic projection.
var ring, k_ring, theta, r, py;
for (ring = 0; ring < 30; ring++) {
py = -1.0 + (ring / 30) * 2.2; // head (-1.0) → feet (+1.2) in y-down
r = 0.20 + breath * (py < 0 ? 1.5 : 0); // chest expands more on inhale
for (k_ring = 0; k_ring < 16; k_ring++) {
theta = (k_ring / 16) * Math.PI * 2;
splats.push({
center: [
sway + Math.cos(theta) * r,
py,
2.3 + Math.sin(theta) * r
],
color: [0.91, 0.65, 0.20],
opacity: 1.0,
scale: [0.018, 0.018, 0.018]
});
}
}
// 17 COCO keypoints in normalized [0,1] image coords (matches live shape)
var headY = 0.18;
var keypoints = [
[0.50 + sway * 0.05, headY, 0.95], // 0 nose
[0.52 + sway * 0.05, headY - 0.01, 0.92], // 1 leftEye
[0.48 + sway * 0.05, headY - 0.01, 0.92], // 2 rightEye
[0.54 + sway * 0.05, headY, 0.85], // 3 leftEar
[0.46 + sway * 0.05, headY, 0.85], // 4 rightEar
[0.60 + sway * 0.04, 0.32, 0.93], // 5 leftShoulder
[0.40 + sway * 0.04, 0.32, 0.93], // 6 rightShoulder
[0.65 + sway * 0.03, 0.46, 0.90], // 7 leftElbow
[0.35 + sway * 0.03, 0.46, 0.90], // 8 rightElbow
[0.68, 0.60 + Math.sin(t * 1.4) * 0.02, 0.86], // 9 leftWrist
[0.32, 0.60 - Math.sin(t * 1.4) * 0.02, 0.86], // 10 rightWrist
[0.57, 0.58, 0.94], // 11 leftHip
[0.43, 0.58, 0.94], // 12 rightHip
[0.58, 0.74, 0.90], // 13 leftKnee
[0.42, 0.74, 0.90], // 14 rightKnee
[0.59, 0.92, 0.88], // 15 leftAnkle
[0.41, 0.92, 0.88] // 16 rightAnkle
];
// Wrap the figure in the Seldon-vault context (grid, spiral, starfield, halo)
pushFoundationContext(splats);
demoFrameNum += 1;
return {
splats: splats,
count: splats.length,
frame: demoFrameNum,
live: false,
pipeline: {
skeleton: { keypoints: keypoints, confidence: 0.86 },
vitals: {
breathing_rate: 14 + Math.round(Math.sin(t * 0.05) * 2),
motion_score: 0.18 + Math.abs(sway) * 2
}
}
};
}
function pickDemoFrame() {
// Prefer real face-mesh data when the camera is running; else procedural.
return faceMeshFrame() || syntheticFrame();
}
// Once auto mode confirms there is no /api/splats backend on this origin,
// set this flag so we stop hammering the network with 404 fetches every
// tick. Console stays clean; demo renders locally.
var networkDisabled = false;
// Exponential backoff state for explicit ?backend=<url>. The user's
// local server may be down (ERR_CONNECTION_REFUSED) and we shouldn't
// hammer it 10 Hz indefinitely. After each failure we lengthen the
// delay; on success we snap back to the normal cadence.
var BASE_INTERVAL_MS = 250;
var MAX_INTERVAL_MS = 30000;
var currentIntervalMs = BASE_INTERVAL_MS;
var consecutiveFailures = 0;
var fetchTimer = null;
var lastBackendError = null;
function scheduleNextFetch(delayMs) {
if (fetchTimer) clearTimeout(fetchTimer);
fetchTimer = setTimeout(fetchCloud, delayMs);
}
async function fetchCloud() {
// Demo-only mode: never hit the network. Use the normal cadence.
if (backendArg === "demo" || networkDisabled) {
transportMode = "demo";
handleData(pickDemoFrame());
scheduleNextFetch(BASE_INTERVAL_MS);
return;
}
try {
var resp = await fetch(buildSplatsUrl(), { cache: "no-store" });
if (!resp.ok) throw new Error("HTTP " + resp.status);
var data = await resp.json();
transportMode = (backendArg === "auto") ? "live" : "remote";
consecutiveFailures = 0;
currentIntervalMs = BASE_INTERVAL_MS;
lastBackendError = null;
handleData(data);
scheduleNextFetch(BASE_INTERVAL_MS);
} catch (err) {
consecutiveFailures += 1;
lastBackendError = err && err.message ? err.message : String(err);
if (requireLive) {
document.getElementById("stats").innerHTML =
'<span class="demo">● OFFLINE</span><br>Live backend required (?live=1) but unreachable.<br><span class="label">' + lastBackendError + '</span>';
// Even strict-live: back off so we don't spam.
currentIntervalMs = Math.min(currentIntervalMs * 2, MAX_INTERVAL_MS);
scheduleNextFetch(currentIntervalMs);
return;
}
// Auto mode + first failure → assume static host (Pages), disable
// network entirely so the console stays clean.
if (backendArg === "auto") {
networkDisabled = true;
transportMode = "demo";
handleData(pickDemoFrame());
scheduleNextFetch(BASE_INTERVAL_MS);
return;
}
// Explicit backend (?backend=<url>) — keep trying with
// exponential backoff: 250 ms → 500 ms → 1 s → 2 s … up to 30 s.
// Render the demo while we wait so the scene stays alive, and
// surface the failure so the user knows the server is down.
currentIntervalMs = Math.min(Math.max(BASE_INTERVAL_MS * Math.pow(2, consecutiveFailures - 1), 1000), MAX_INTERVAL_MS);
transportMode = "demo";
var demoFrame = pickDemoFrame();
demoFrame._backendUnreachable = true;
demoFrame._backendUrl = backendArg;
demoFrame._backendError = lastBackendError;
demoFrame._retryInMs = currentIntervalMs;
handleData(demoFrame);
scheduleNextFetch(currentIntervalMs);
}
}
function handleData(data) {
try {
if (data.splats && data.frame !== lastFrame) {
// Compute CSI frame rate
var now = Date.now();
if (prevTimestamp > 0) {
var dt = (now - prevTimestamp) / 1000.0;
if (dt > 0) frameRateVal = (1.0 / dt).toFixed(1);
}
prevTimestamp = now;
lastFrame = data.frame;
// Overlay browser face mesh on top of backend splats when both
// are active — lets visitors see their own face *plus* the
// ESP32-driven point cloud in the same scene. Demo mode (where
// data.source === "face-mesh") already includes the face, so
// we skip this branch there to avoid double-counting.
var rendered = data.splats;
var faceOverlay = false;
if (data.source !== "face-mesh"
&& faceMeshState === "running"
&& latestFaceLandmarks) {
rendered = data.splats.slice();
pushFaceSplats(rendered);
faceOverlay = true;
}
data._faceOverlay = faceOverlay;
updateSplats(rendered);
// Draw skeleton if available
var pipe = data.pipeline;
if (pipe && pipe.skeleton && pipe.skeleton.keypoints) {
drawSkeleton(pipe.skeleton.keypoints);
} else {
clearSkeleton();
}
// Build info panel — badge reflects active transport
var mode;
if (transportMode === "live") {
mode = '<span class="live">● LIVE</span> Local Backend';
} else if (transportMode === "remote") {
mode = '<span class="live">● REMOTE</span> ' + backendArg;
} else if (data.source === "face-mesh") {
mode = '<span class="face">● DEMO</span> Your Face (MediaPipe)';
} else {
mode = '<span class="demo">● DEMO</span> Synthetic';
}
if (data._faceOverlay) {
mode += ' <span class="face">+ face overlay</span>';
}
var splatCount = rendered ? rendered.length : data.count;
var html = mode + "<br>"
+ "Splats: " + splatCount + "<br>"
+ "Frame: " + data.frame;
// Unreachable backend banner — explicit ?backend=<url> failed
// to connect. Show actionable guidance instead of leaving the
// user staring at a "demo" badge wondering why their ESP32
// feed isn't visible.
if (data._backendUnreachable) {
var nextSec = Math.round((data._retryInMs || 1000) / 1000);
html += '<div class="section">'
+ '<span class="demo">● ' + data._backendUrl + '</span> unreachable'
+ '<br><span class="label">' + (data._backendError || "connection failed") + '</span>'
+ '<br><span class="label">retry in ' + nextSec + 's</span>'
+ '<br><br><span class="label">start the server:</span>'
+ '<br><code style="color:#e8a634">cargo run -p wifi-densepose-pointcloud --release \\<br> -- serve --bind 127.0.0.1:9880</code>'
+ '</div>';
}
// CSI frame rate
html += '<div class="section">'
+ '<span class="label">CSI Rate:</span> '
+ frameRateVal + " fps</div>";
// Skeleton confidence
if (pipe && pipe.skeleton && pipe.skeleton.confidence !== undefined) {
var conf = (pipe.skeleton.confidence * 100).toFixed(0);
html += '<div class="section">'
+ '<span class="label">Skeleton:</span> '
+ conf + "% confidence</div>";
}
// Weather data
if (pipe && pipe.weather) {
var w = pipe.weather;
html += '<div class="section">'
+ '<span class="label">Weather:</span> ';
if (w.temperature !== undefined) {
html += w.temperature + "°C";
}
if (w.conditions) {
html += " " + w.conditions;
}
html += "</div>";
}
// Building count from geo
if (pipe && pipe.geo && pipe.geo.building_count !== undefined) {
html += '<div class="section">'
+ '<span class="label">Buildings:</span> '
+ pipe.geo.building_count + "</div>";
}
// Vitals
if (pipe && pipe.vitals) {
var v = pipe.vitals;
html += '<div class="section">'
+ '<span class="label">Vitals:</span> ';
if (v.breathing_rate !== undefined) {
html += "BR " + v.breathing_rate + "/min";
}
if (v.motion_score !== undefined) {
html += " Motion " + (v.motion_score * 100).toFixed(0) + "%";
}
html += "</div>";
}
document.getElementById("stats").innerHTML = html;
}
} catch(e) {}
}
// Wire the camera CTA. The camera is now overlay-able on every
// transport mode: in demo it IS the subject; in live/remote it
// overlays the backend splats so the visitor sees their face
// alongside the ESP32-driven point cloud.
(function wireCamCta() {
var btn = document.getElementById("cam-cta");
if (!btn) return;
if (requireLive) {
// Strict-live mode shows the offline panel — no camera UI.
btn.classList.add("hidden");
return;
}
// In remote mode, label the button as an overlay action.
if (backendArg.startsWith("http")) {
btn.textContent = "▶ Add face overlay";
}
btn.addEventListener("click", function() {
btn.textContent = backendArg.startsWith("http")
? "Starting overlay…"
: "Initializing the Vault…";
startFaceMesh();
});
})();
// Wire the ESP32 backend CTA: prompts for a ruview-pointcloud serve URL,
// persists last-used value in localStorage, and reloads with the
// ?backend=<url> query so the existing remote-mode path takes over.
// Disconnect by clicking again when already connected.
(function wireEspCta() {
var btn = document.getElementById("esp-cta");
if (!btn) return;
var connected = backendArg.startsWith("http");
if (connected) {
btn.classList.add("connected");
btn.textContent = "📡 ESP32 connected · disconnect";
}
btn.addEventListener("click", function() {
if (connected) {
// Strip ?backend= from current URL and reload — return to demo.
var u = new URL(window.location.href);
u.searchParams.delete("backend");
window.location.href = u.toString();
return;
}
var stored;
try { stored = localStorage.getItem("ruview.backendUrl"); } catch (_) { stored = null; }
var def = stored || "http://127.0.0.1:9880";
var url = window.prompt(
"Enter the ruview-pointcloud serve URL (run `ruview-pointcloud serve` locally with your ESP32 streaming CSI to UDP port 3333):",
def
);
if (!url) return;
url = url.replace(/\/+$/, "");
try { localStorage.setItem("ruview.backendUrl", url); } catch (_) {}
var u2 = new URL(window.location.href);
u2.searchParams.set("backend", url);
window.location.href = u2.toString();
});
})();
// fetchCloud self-schedules via setTimeout — no setInterval to avoid
// overlapping calls on slow networks and to support exponential backoff.
fetchCloud();
function updateSplats(splats) {
if (pointsMesh) scene.remove(pointsMesh);
var geometry = new THREE.BufferGeometry();
var positions = new Float32Array(splats.length * 3);
var colors = new Float32Array(splats.length * 3);
var i, s;
for (i = 0; i < splats.length; i++) {
s = splats[i];
positions[i*3] = s.center[0];
positions[i*3+1] = -s.center[1];
positions[i*3+2] = s.center[2];
colors[i*3] = s.color[0];
colors[i*3+1] = s.color[1];
colors[i*3+2] = s.color[2];
}
geometry.setAttribute("position", new THREE.BufferAttribute(positions, 3));
geometry.setAttribute("color", new THREE.BufferAttribute(colors, 3));
pointsMesh = new THREE.Points(geometry, new THREE.PointsMaterial({
size: 0.02, vertexColors: true, sizeAttenuation: true
}));
scene.add(pointsMesh);
}
function animate() {
requestAnimationFrame(animate);
controls.update();
renderer.render(scene, camera);
}
animate();
window.addEventListener("resize", function() {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
});
</script>
</body>
</html>