Update index.html
Browse files- index.html +422 -17
index.html
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<!doctype html>
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<html>
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</html>
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<!-- webxr-ar-demo.html -->
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<!doctype html>
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<html lang="fa">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width,initial-scale=1.0,viewport-fit=cover" />
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<title>WebXR AR Demo — Floating Marker</title>
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<style>
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:root{
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--bg:#0f1724;
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--card:#0b1220;
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--accent:#4dd0e1;
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--muted:#9aa6b2;
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--glass: rgba(255,255,255,0.04);
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--radius: 12px;
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}
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html,body{height:100%;margin:0;background:linear-gradient(180deg,#071124,#0f1724);font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;}
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#app{height:100%;display:flex;flex-direction:column;align-items:stretch;}
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#overlayUI{position:fixed;left:12px;right:12px;top:12px;display:flex;justify-content:space-between;gap:12px;z-index:50}
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.card{backdrop-filter:blur(6px);background:var(--glass);padding:8px;border-radius:999px;display:flex;gap:8px;align-items:center;}
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button{background:transparent;border:1px solid rgba(255,255,255,0.06);color:white;padding:8px 12px;border-radius:10px;font-weight:600}
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button.primary{background:linear-gradient(90deg,var(--accent),#7bdff0);color:#052026;border:0}
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#hint{position:fixed;left:12px;bottom:16px;right:12px;color:var(--muted);font-size:13px;text-align:center;z-index:40}
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#message{position:fixed;left:50%;transform:translateX(-50%);top:60px;background:rgba(0,0,0,0.5);padding:8px 12px;border-radius:10px;color:white;z-index:60}
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canvas{touch-action:none}
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/* small info card */
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#infoCard{position:fixed;right:12px;top:70px;background:linear-gradient(180deg,#071a23,#0b1620);padding:12px;border-radius:12px;color:var(--muted);font-size:13px;z-index:60;max-width:260px}
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#logo{display:flex;gap:8px;align-items:center}
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#logo .dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
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</style>
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</head>
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<body>
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<div id="app">
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<div id="overlayUI">
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<div class="card">
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<div id="logo"><div class="dot"></div><div style="font-weight:700">AR-Demo</div></div>
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</div>
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<div class="card" id="controls">
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<button id="btnStart" class="primary">start ar</button>
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<button id="btnReset">reset</button>
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<button id="btnFallback">demo fallback</button>
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</div>
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</div>
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<div id="message" style="display:none"></div>
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<div id="infoCard">
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<div style="font-weight:700;color:white">Floating Marker — demo</div>
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<div style="margin-top:8px">نحوهٔ کار: روی start ar بزن. سپس صفحهٔ مرورگر اجازهٔ دسترسی به دوربین را میپرسد. گوشی را حرکت بده تا شیء در فضا دیده شود. با تپ روی شیء رنگ عوض میشود.</div>
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</div>
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<div id="container"></div>
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<div id="hint">best on Chrome (Android). requires https and camera permission.</div>
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</div>
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<!-- three.js and helpers (es modules) -->
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<script type="module">
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// imports
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import * as THREE from 'https://unpkg.com/three@0.152.2/build/three.module.js';
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import { ARButton } from 'https://unpkg.com/three@0.152.2/examples/jsm/webxr/ARButton.js';
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import { XRControllerModelFactory } from 'https://unpkg.com/three@0.152.2/examples/jsm/webxr/XRControllerModelFactory.js';
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// ui elements
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const btnStart = document.getElementById('btnStart');
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const btnReset = document.getElementById('btnReset');
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const btnFallback = document.getElementById('btnFallback');
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const message = document.getElementById('message');
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const container = document.getElementById('container');
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// scene setup variables
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let camera, scene, renderer;
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let reticle = null; // small marker
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let markerGroup = null;
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let clock = new THREE.Clock();
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let xrSessionActive = false;
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let currentColorIndex = 0;
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const colors = [0x4dd0e1, 0x7b61ff, 0xff7ab6, 0x6ee07a];
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// show temporary messages to user
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function showMsg(text, timeout=2500){
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message.style.display='block';
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message.textContent = text;
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clearTimeout(message._t);
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message._t = setTimeout(()=> message.style.display='none', timeout);
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}
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// basic three scene (not yet xr-enabled)
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function initThree(){
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// create renderer
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renderer = new THREE.WebGLRenderer({ antialias: true, alpha: true });
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renderer.setPixelRatio(window.devicePixelRatio);
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renderer.setSize(window.innerWidth, window.innerHeight);
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renderer.xr.enabled = true;
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container.appendChild(renderer.domElement);
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// create scene and camera (camera will be controlled by XR)
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scene = new THREE.Scene();
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camera = new THREE.PerspectiveCamera(70, window.innerWidth / window.innerHeight, 0.01, 100);
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// subtle ambient and a directional light for modern look
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const ambient = new THREE.HemisphereLight(0xffffff, 0x444444, 0.6);
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scene.add(ambient);
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const dir = new THREE.DirectionalLight(0xffffff, 0.8);
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dir.position.set(0.5, 1, 0.2);
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scene.add(dir);
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// marker group: a floating sphere + halo + label
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markerGroup = new THREE.Group();
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markerGroup.visible = false;
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// sphere
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const sphereGeo = new THREE.SphereGeometry(0.12, 32, 24);
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const sphereMat = new THREE.MeshStandardMaterial({ metalness:0.3, roughness:0.2, emissive:colors[0], emissiveIntensity:0.2 });
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const sphere = new THREE.Mesh(sphereGeo, sphereMat);
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sphere.name = 'markerSphere';
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// halo (a thin torus)
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const torusGeo = new THREE.TorusGeometry(0.18, 0.02, 16, 100);
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const torusMat = new THREE.MeshBasicMaterial({ color: colors[0], transparent:true, opacity:0.9 });
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const halo = new THREE.Mesh(torusGeo, torusMat);
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halo.rotation.x = Math.PI / 2;
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halo.position.y = -0.02;
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// floating label (flat plane with basic text using canvas texture)
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const labelCanvas = document.createElement('canvas');
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labelCanvas.width = 512; labelCanvas.height = 128;
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const ctx = labelCanvas.getContext('2d');
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function updateLabel(text){
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ctx.clearRect(0,0,labelCanvas.width,labelCanvas.height);
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ctx.fillStyle = 'rgba(5,32,38,0.9)';
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ctx.fillRect(0,0,labelCanvas.width,labelCanvas.height);
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ctx.font = 'bold 46px system-ui';
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ctx.fillStyle = 'white';
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ctx.textAlign = 'center';
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ctx.fillText(text, labelCanvas.width/2, 76);
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labelTexture.needsUpdate = true;
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}
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const labelTexture = new THREE.CanvasTexture(labelCanvas);
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const labelMat = new THREE.MeshBasicMaterial({ map: labelTexture, transparent:false });
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const labelGeo = new THREE.PlaneGeometry(0.6, 0.15);
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const labelMesh = new THREE.Mesh(labelGeo, labelMat);
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labelMesh.position.y = 0.28;
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labelMesh.lookAt(0,0,0); // will be updated each frame
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updateLabel('ورودی اصلی');
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// add to group
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markerGroup.add(sphere);
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markerGroup.add(halo);
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markerGroup.add(labelMesh);
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scene.add(markerGroup);
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// reticle (small ring used when hit-test available)
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const ringGeo = new THREE.RingGeometry(0.07, 0.09, 32);
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const ringMat = new THREE.MeshBasicMaterial({ color:0xffffff, side:THREE.DoubleSide, transparent:true, opacity:0.85 });
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reticle = new THREE.Mesh(ringGeo, ringMat);
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reticle.rotation.x = -Math.PI / 2;
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reticle.visible = false;
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scene.add(reticle);
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window.addEventListener('resize', onWindowResize);
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}
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function onWindowResize(){
|
| 164 |
+
if (camera){
|
| 165 |
+
camera.aspect = window.innerWidth / window.innerHeight;
|
| 166 |
+
camera.updateProjectionMatrix();
|
| 167 |
+
}
|
| 168 |
+
if (renderer) renderer.setSize(window.innerWidth, window.innerHeight);
|
| 169 |
+
}
|
| 170 |
+
|
| 171 |
+
// set marker at given position and make visible
|
| 172 |
+
function placeMarkerAt(pos, quaternion){
|
| 173 |
+
markerGroup.position.copy(pos);
|
| 174 |
+
if (quaternion) markerGroup.quaternion.copy(quaternion);
|
| 175 |
+
markerGroup.visible = true;
|
| 176 |
+
showMsg('marker placed');
|
| 177 |
+
}
|
| 178 |
+
|
| 179 |
+
// change marker color (on tap)
|
| 180 |
+
function cycleMarkerColor(){
|
| 181 |
+
currentColorIndex = (currentColorIndex + 1) % colors.length;
|
| 182 |
+
const sphere = markerGroup.getObjectByName('markerSphere');
|
| 183 |
+
sphere.material.emissive.setHex(colors[currentColorIndex]);
|
| 184 |
+
markerGroup.children.forEach(child=>{
|
| 185 |
+
if (child.material && child.material.color){
|
| 186 |
+
child.material.color.setHex(colors[currentColorIndex]);
|
| 187 |
+
}
|
| 188 |
+
});
|
| 189 |
+
}
|
| 190 |
+
|
| 191 |
+
// animate floating and halo
|
| 192 |
+
function animateMarker(delta){
|
| 193 |
+
if (!markerGroup.visible) return;
|
| 194 |
+
const t = performance.now() * 0.001;
|
| 195 |
+
markerGroup.position.y += Math.sin(t*1.5) * 0.0008; // tiny float
|
| 196 |
+
// rotate halo slowly
|
| 197 |
+
const halo = markerGroup.children.find(c=>c.geometry && c.geometry.type === 'TorusGeometry');
|
| 198 |
+
if (halo) halo.rotation.z += delta * 0.6;
|
| 199 |
+
// pulse emissive
|
| 200 |
+
const sphere = markerGroup.getObjectByName('markerSphere');
|
| 201 |
+
sphere.material.emissiveIntensity = 0.2 + Math.abs(Math.sin(t*2)) * 0.5;
|
| 202 |
+
}
|
| 203 |
+
|
| 204 |
+
// start a WebXR AR session via three's ARButton
|
| 205 |
+
async function startARSession(){
|
| 206 |
+
if (!renderer) initThree();
|
| 207 |
+
|
| 208 |
+
// create AR button (hidden) to create session
|
| 209 |
+
const arButton = ARButton.createButton(renderer, { requiredFeatures: ['hit-test'] });
|
| 210 |
+
// programmatically click it to request permission and start session
|
| 211 |
+
arButton.style.display='none';
|
| 212 |
+
document.body.appendChild(arButton);
|
| 213 |
+
try {
|
| 214 |
+
const xrStarted = await new Promise((resolve, reject)=>{
|
| 215 |
+
// attach event listeners to detect session start
|
| 216 |
+
renderer.xr.addEventListener('sessionstart', ()=> resolve(true));
|
| 217 |
+
renderer.xr.addEventListener('sessionend', ()=> resolve(false));
|
| 218 |
+
arButton.click();
|
| 219 |
+
});
|
| 220 |
+
if (!xrStarted) {
|
| 221 |
+
showMsg('xr session not started');
|
| 222 |
+
return;
|
| 223 |
+
}
|
| 224 |
+
} catch(e){
|
| 225 |
+
console.error(e);
|
| 226 |
+
showMsg('failed to start xr: ' + (e && e.message ? e.message : e));
|
| 227 |
+
return;
|
| 228 |
+
}
|
| 229 |
+
|
| 230 |
+
// set renderer animation loop
|
| 231 |
+
renderer.setAnimationLoop(render);
|
| 232 |
+
|
| 233 |
+
// request hit test source if available
|
| 234 |
+
const session = renderer.xr.getSession();
|
| 235 |
+
xrSessionActive = true;
|
| 236 |
+
|
| 237 |
+
// preference: use viewer space for hit-test
|
| 238 |
+
let viewerSpace = await session.requestReferenceSpace('viewer').catch(()=>null);
|
| 239 |
+
if (viewerSpace){
|
| 240 |
+
const hitTestSource = await session.requestHitTestSource({ space: viewerSpace }).catch(()=>null);
|
| 241 |
+
// on each frame, we'll use hit test results to position reticle
|
| 242 |
+
session.requestAnimationFrame(function onXRFrame(time, frame){
|
| 243 |
+
// nothing here, actual rendering handled in render loop
|
| 244 |
+
});
|
| 245 |
+
// store in session for use in render
|
| 246 |
+
session._hitTestSource = hitTestSource;
|
| 247 |
+
} else {
|
| 248 |
+
// no viewer space/hit-test available – we'll fallback to fixed distance placement
|
| 249 |
+
showMsg('hit-test not available, using fixed distance placement');
|
| 250 |
+
}
|
| 251 |
+
|
| 252 |
+
showMsg('webxr session started', 2000);
|
| 253 |
+
|
| 254 |
+
// controller for tap events
|
| 255 |
+
const controller = renderer.xr.getController(0);
|
| 256 |
+
controller.addEventListener('select', onSelect);
|
| 257 |
+
scene.add(controller);
|
| 258 |
+
}
|
| 259 |
+
|
| 260 |
+
// select handler when in XR (tap on screen)
|
| 261 |
+
function onSelect(){
|
| 262 |
+
// prefer reticle if visible
|
| 263 |
+
if (reticle && reticle.visible){
|
| 264 |
+
const pos = new THREE.Vector3();
|
| 265 |
+
pos.setFromMatrixPosition(reticle.matrix);
|
| 266 |
+
// also get orientation from camera
|
| 267 |
+
const quat = new THREE.Quaternion();
|
| 268 |
+
quat.setFromRotationMatrix(reticle.matrix);
|
| 269 |
+
placeMarkerAt(pos, quat);
|
| 270 |
+
return;
|
| 271 |
+
}
|
| 272 |
+
// else place at fixed distance in front of camera (1.5m)
|
| 273 |
+
const cam = renderer.xr.getCamera(camera);
|
| 274 |
+
const dir = new THREE.Vector3(0,0,-1).applyQuaternion(cam.quaternion);
|
| 275 |
+
const pos = new THREE.Vector3().copy(cam.position).add(dir.multiplyScalar(1.5));
|
| 276 |
+
placeMarkerAt(pos, null);
|
| 277 |
+
}
|
| 278 |
+
|
| 279 |
+
// render loop
|
| 280 |
+
function render(timestamp, frame){
|
| 281 |
+
const delta = clock.getDelta();
|
| 282 |
+
|
| 283 |
+
// handle hit-test if possible
|
| 284 |
+
if (frame){
|
| 285 |
+
const session = renderer.xr.getSession();
|
| 286 |
+
if (session && session._hitTestSource){
|
| 287 |
+
const hitTestResults = frame.getHitTestResults(session._hitTestSource);
|
| 288 |
+
if (hitTestResults && hitTestResults.length > 0){
|
| 289 |
+
const hit = hitTestResults[0];
|
| 290 |
+
const pose = hit.getPose(renderer.xr.getReferenceSpace());
|
| 291 |
+
reticle.visible = true;
|
| 292 |
+
reticle.matrix.fromArray(pose.transform.matrix);
|
| 293 |
+
reticle.matrix.decompose(reticle.position, reticle.quaternion, reticle.scale);
|
| 294 |
+
} else {
|
| 295 |
+
reticle.visible = false;
|
| 296 |
+
}
|
| 297 |
+
} else {
|
| 298 |
+
// no hit test — position reticle in front of camera at fixed distance as visual guide
|
| 299 |
+
const cam = renderer.xr.getCamera(camera);
|
| 300 |
+
reticle.visible = true;
|
| 301 |
+
const dir = new THREE.Vector3(0,0,-1).applyQuaternion(cam.quaternion);
|
| 302 |
+
reticle.position.copy(cam.position).add(dir.multiplyScalar(1.6));
|
| 303 |
+
reticle.quaternion.copy(cam.quaternion);
|
| 304 |
+
}
|
| 305 |
+
} else {
|
| 306 |
+
// non-xr rendering fallback path (preview mode)
|
| 307 |
+
}
|
| 308 |
+
|
| 309 |
+
// update marker animation
|
| 310 |
+
animateMarker(delta);
|
| 311 |
+
|
| 312 |
+
// billboard the label to face camera
|
| 313 |
+
if (markerGroup.visible){
|
| 314 |
+
const label = markerGroup.children.find(c=>c.geometry && c.geometry.type === 'PlaneGeometry');
|
| 315 |
+
if (label) label.lookAt(renderer.xr.isPresenting ? renderer.xr.getCamera(camera).position : camera.position);
|
| 316 |
+
}
|
| 317 |
+
|
| 318 |
+
renderer.render(scene, camera);
|
| 319 |
+
}
|
| 320 |
+
|
| 321 |
+
// reset scene marker
|
| 322 |
+
function resetMarker(){
|
| 323 |
+
if (markerGroup) markerGroup.visible=false;
|
| 324 |
+
showMsg('reset');
|
| 325 |
+
}
|
| 326 |
+
|
| 327 |
+
// simple fallback demo using getUserMedia if WebXR not supported
|
| 328 |
+
async function startFallbackDemo(){
|
| 329 |
+
// init three if not already
|
| 330 |
+
if (!renderer) initThree();
|
| 331 |
+
// remove any XR session if present
|
| 332 |
+
if (renderer.xr && renderer.xr.getSession()){
|
| 333 |
+
try { await renderer.xr.getSession().end(); } catch(e){/*ignore*/}
|
| 334 |
+
}
|
| 335 |
+
// ask for camera permission via getUserMedia and set as video background
|
| 336 |
+
const stream = await navigator.mediaDevices.getUserMedia({ video: { facingMode: 'environment' }, audio:false });
|
| 337 |
+
const video = document.createElement('video');
|
| 338 |
+
video.autoplay = true; video.playsInline = true; video.muted = true;
|
| 339 |
+
video.srcObject = stream;
|
| 340 |
+
await video.play();
|
| 341 |
+
|
| 342 |
+
// create video background as a three texture-mapped plane behind the scene
|
| 343 |
+
const videoTex = new THREE.VideoTexture(video);
|
| 344 |
+
videoTex.minFilter = THREE.LinearFilter; videoTex.magFilter = THREE.LinearFilter; videoTex.format = THREE.RGBFormat;
|
| 345 |
+
// place a large plane behind
|
| 346 |
+
const bgMat = new THREE.MeshBasicMaterial({ map: videoTex });
|
| 347 |
+
const bgGeo = new THREE.PlaneGeometry(2, 2 * (window.innerHeight / window.innerWidth));
|
| 348 |
+
const bgMesh = new THREE.Mesh(bgGeo, bgMat);
|
| 349 |
+
bgMesh.position.set(0,0,-1.5);
|
| 350 |
+
scene.add(bgMesh);
|
| 351 |
+
|
| 352 |
+
// show instructions
|
| 353 |
+
showMsg('demo mode: tap screen to place floating marker');
|
| 354 |
+
|
| 355 |
+
// simple tap handler for placement on center ray
|
| 356 |
+
renderer.domElement.style.touchAction = 'auto';
|
| 357 |
+
renderer.domElement.addEventListener('pointerdown', (e)=>{
|
| 358 |
+
// place a marker in front of camera at 1.4m
|
| 359 |
+
const pos = new THREE.Vector3(0,0,-1).applyQuaternion(camera.quaternion).multiplyScalar(1.4).add(camera.position);
|
| 360 |
+
placeMarkerAt(pos);
|
| 361 |
+
});
|
| 362 |
+
|
| 363 |
+
// run the render loop without xr
|
| 364 |
+
renderer.setAnimationLoop(()=> {
|
| 365 |
+
const delta = clock.getDelta();
|
| 366 |
+
animateMarker(delta);
|
| 367 |
+
if (markerGroup.visible){
|
| 368 |
+
const label = markerGroup.children.find(c=>c.geometry && c.geometry.type === 'PlaneGeometry');
|
| 369 |
+
if (label) label.lookAt(camera.position);
|
| 370 |
+
}
|
| 371 |
+
renderer.render(scene,camera);
|
| 372 |
+
});
|
| 373 |
+
}
|
| 374 |
+
|
| 375 |
+
// event wiring
|
| 376 |
+
btnStart.addEventListener('click', async ()=>{
|
| 377 |
+
if (!navigator.xr){
|
| 378 |
+
showMsg('webxr not available on this browser');
|
| 379 |
+
return;
|
| 380 |
+
}
|
| 381 |
+
// initialize three if needed
|
| 382 |
+
if (!renderer) initThree();
|
| 383 |
+
try {
|
| 384 |
+
await startARSession();
|
| 385 |
+
} catch(e){
|
| 386 |
+
console.error(e);
|
| 387 |
+
showMsg('could not start webxr: ' + (e.message || e));
|
| 388 |
+
}
|
| 389 |
+
});
|
| 390 |
+
|
| 391 |
+
btnReset.addEventListener('click', ()=> resetMarker());
|
| 392 |
+
btnFallback.addEventListener('click', ()=> {
|
| 393 |
+
if (!renderer) initThree();
|
| 394 |
+
startFallbackDemo().catch(err=> {
|
| 395 |
+
console.error(err);
|
| 396 |
+
showMsg('fallback failed: ' + (err && err.message ? err.message : err));
|
| 397 |
+
});
|
| 398 |
+
});
|
| 399 |
+
|
| 400 |
+
// interaction: toggle color when tapping on marker in fallback or when in XR via select event
|
| 401 |
+
// add a pointerdown that raycasts to sphere (for fallback mode)
|
| 402 |
+
function setupPointerInteraction(){
|
| 403 |
+
const raycaster = new THREE.Raycaster();
|
| 404 |
+
const pointer = new THREE.Vector2();
|
| 405 |
+
renderer.domElement.addEventListener('pointerdown', (ev)=>{
|
| 406 |
+
// calculate pointer position
|
| 407 |
+
pointer.x = (ev.clientX / window.innerWidth) * 2 - 1;
|
| 408 |
+
pointer.y = - (ev.clientY / window.innerHeight) * 2 + 1;
|
| 409 |
+
raycaster.setFromCamera(pointer, camera);
|
| 410 |
+
const intersects = raycaster.intersectObjects(markerGroup.children, true);
|
| 411 |
+
if (intersects.length > 0){
|
| 412 |
+
cycleMarkerColor();
|
| 413 |
+
}
|
| 414 |
+
});
|
| 415 |
+
}
|
| 416 |
+
|
| 417 |
+
// initialize on load for quick demo
|
| 418 |
+
initThree();
|
| 419 |
+
setupPointerInteraction();
|
| 420 |
+
showMsg('ready — use start ar or demo fallback');
|
| 421 |
+
|
| 422 |
+
</script>
|
| 423 |
+
</body>
|
| 424 |
</html>
|