Create viewer_ar.js
Browse files- viewer_ar.js +375 -0
viewer_ar.js
ADDED
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|
| 1 |
+
// script_ar.js
|
| 2 |
+
(() => {
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| 3 |
+
const PLAYCANVAS_CDN = "https://cdn.playcanvas.com/playcanvas-stable.min.js";
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| 4 |
+
const GLB_URL = "https://huggingface.co/datasets/MikaFil/viewer_gs/resolve/main/AR/tests/fraisier.glb";
|
| 5 |
+
|
| 6 |
+
// ============ Utils DOM ============
|
| 7 |
+
const ensureCanvas = () => {
|
| 8 |
+
let canvas = document.getElementById("application-canvas");
|
| 9 |
+
if (!canvas) {
|
| 10 |
+
canvas = document.createElement("canvas");
|
| 11 |
+
canvas.id = "application-canvas";
|
| 12 |
+
document.body.appendChild(canvas);
|
| 13 |
+
}
|
| 14 |
+
return canvas;
|
| 15 |
+
};
|
| 16 |
+
|
| 17 |
+
const css = `
|
| 18 |
+
.pc-ar-msg {
|
| 19 |
+
position: fixed; left: 50%; transform: translateX(-50%);
|
| 20 |
+
bottom: 16px; z-index: 9999; padding: 10px 14px;
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| 21 |
+
background: rgba(0,0,0,.65); color: #fff; border-radius: 8px;
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| 22 |
+
font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
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| 23 |
+
font-size: 14px; line-height: 1.3; text-align: center;
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| 24 |
+
max-width: min(90vw, 600px);
|
| 25 |
+
box-shadow: 0 6px 20px rgba(0,0,0,.25);
|
| 26 |
+
backdrop-filter: blur(4px);
|
| 27 |
+
}
|
| 28 |
+
`;
|
| 29 |
+
const styleTag = document.createElement("style");
|
| 30 |
+
styleTag.textContent = css;
|
| 31 |
+
document.head.appendChild(styleTag);
|
| 32 |
+
|
| 33 |
+
const message = (msg) => {
|
| 34 |
+
let el = document.querySelector(".pc-ar-msg");
|
| 35 |
+
if (!el) {
|
| 36 |
+
el = document.createElement("div");
|
| 37 |
+
el.className = "pc-ar-msg";
|
| 38 |
+
document.body.appendChild(el);
|
| 39 |
+
}
|
| 40 |
+
el.textContent = msg;
|
| 41 |
+
};
|
| 42 |
+
|
| 43 |
+
// ============ Loader PlayCanvas ============
|
| 44 |
+
const loadPcIfNeeded = () =>
|
| 45 |
+
new Promise((resolve, reject) => {
|
| 46 |
+
if (window.pc) return resolve();
|
| 47 |
+
const s = document.createElement("script");
|
| 48 |
+
s.src = PLAYCANVAS_CDN;
|
| 49 |
+
s.async = true;
|
| 50 |
+
s.onload = () => resolve();
|
| 51 |
+
s.onerror = () => reject(new Error("Échec du chargement de PlayCanvas"));
|
| 52 |
+
document.head.appendChild(s);
|
| 53 |
+
});
|
| 54 |
+
|
| 55 |
+
// ============ Main ============
|
| 56 |
+
loadPcIfNeeded()
|
| 57 |
+
.then(() => init())
|
| 58 |
+
.catch((e) => {
|
| 59 |
+
console.error(e);
|
| 60 |
+
message("Impossible de charger PlayCanvas.");
|
| 61 |
+
});
|
| 62 |
+
|
| 63 |
+
function init() {
|
| 64 |
+
const canvas = ensureCanvas();
|
| 65 |
+
window.focus();
|
| 66 |
+
|
| 67 |
+
// Crée l'app PlayCanvas (fond transparent pour l'AR)
|
| 68 |
+
const app = new pc.Application(canvas, {
|
| 69 |
+
mouse: new pc.Mouse(canvas),
|
| 70 |
+
touch: new pc.TouchDevice(canvas),
|
| 71 |
+
keyboard: new pc.Keyboard(window),
|
| 72 |
+
graphicsDeviceOptions: { alpha: true },
|
| 73 |
+
});
|
| 74 |
+
|
| 75 |
+
app.setCanvasFillMode(pc.FILLMODE_FILL_WINDOW);
|
| 76 |
+
app.setCanvasResolution(pc.RESOLUTION_AUTO);
|
| 77 |
+
app.graphicsDevice.maxPixelRatio = window.devicePixelRatio || 1;
|
| 78 |
+
|
| 79 |
+
const onResize = () => app.resizeCanvas();
|
| 80 |
+
window.addEventListener("resize", onResize);
|
| 81 |
+
app.on("destroy", () => window.removeEventListener("resize", onResize));
|
| 82 |
+
|
| 83 |
+
app.start();
|
| 84 |
+
|
| 85 |
+
// Caméra
|
| 86 |
+
const camera = new pc.Entity("Camera");
|
| 87 |
+
camera.addComponent("camera", {
|
| 88 |
+
clearColor: new pc.Color(0, 0, 0, 0),
|
| 89 |
+
farClip: 10000,
|
| 90 |
+
});
|
| 91 |
+
app.root.addChild(camera);
|
| 92 |
+
|
| 93 |
+
// Une lumière douce (utile en fallback / pré-AR)
|
| 94 |
+
const light = new pc.Entity("Light");
|
| 95 |
+
light.addComponent("light", {
|
| 96 |
+
type: "spot",
|
| 97 |
+
range: 30,
|
| 98 |
+
intensity: 1.2,
|
| 99 |
+
castShadows: false,
|
| 100 |
+
});
|
| 101 |
+
light.setLocalPosition(0, 10, 0);
|
| 102 |
+
app.root.addChild(light);
|
| 103 |
+
|
| 104 |
+
// Réticule (anneau) pour visualiser l’emplacement proposé par le hit-test
|
| 105 |
+
const reticleMat = new pc.StandardMaterial();
|
| 106 |
+
reticleMat.diffuse = new pc.Color(0.2, 0.8, 1.0);
|
| 107 |
+
reticleMat.opacity = 0.85;
|
| 108 |
+
reticleMat.blendType = pc.BLEND_NORMAL;
|
| 109 |
+
reticleMat.update();
|
| 110 |
+
|
| 111 |
+
const reticle = new pc.Entity("Reticle");
|
| 112 |
+
reticle.addComponent("render", { type: "torus", material: reticleMat });
|
| 113 |
+
reticle.setLocalScale(0.12, 0.005, 0.12);
|
| 114 |
+
reticle.enabled = false; // activé quand AR démarre
|
| 115 |
+
app.root.addChild(reticle);
|
| 116 |
+
|
| 117 |
+
// Conteneur du modèle GLB
|
| 118 |
+
const modelRoot = new pc.Entity("ModelRoot");
|
| 119 |
+
modelRoot.enabled = false; // activé après chargement + 1er placement
|
| 120 |
+
app.root.addChild(modelRoot);
|
| 121 |
+
|
| 122 |
+
let modelLoaded = false;
|
| 123 |
+
let placedOnce = false;
|
| 124 |
+
|
| 125 |
+
// Chargement GLB (Container)
|
| 126 |
+
app.assets.loadFromUrl(GLB_URL, "container", (err, asset) => {
|
| 127 |
+
if (err) {
|
| 128 |
+
console.error(err);
|
| 129 |
+
message("Échec du chargement du modèle GLB.");
|
| 130 |
+
return;
|
| 131 |
+
}
|
| 132 |
+
// Instancie le contenu GLB
|
| 133 |
+
const instance = asset.resource.instantiateRenderEntity({
|
| 134 |
+
castShadows: false,
|
| 135 |
+
receiveShadows: false,
|
| 136 |
+
});
|
| 137 |
+
modelRoot.addChild(instance);
|
| 138 |
+
|
| 139 |
+
// Mise à l’échelle raisonnable si le modèle est énorme/petit
|
| 140 |
+
// (ajuste si besoin)
|
| 141 |
+
modelRoot.setLocalScale(0.2, 0.2, 0.2);
|
| 142 |
+
|
| 143 |
+
modelLoaded = true;
|
| 144 |
+
message("Modèle chargé. Touchez l’écran pour démarrer l’AR.");
|
| 145 |
+
});
|
| 146 |
+
|
| 147 |
+
// ======== Gestion AR / Hit Test ========
|
| 148 |
+
if (!app.xr.supported) {
|
| 149 |
+
message("WebXR n’est pas supporté sur cet appareil.");
|
| 150 |
+
return;
|
| 151 |
+
}
|
| 152 |
+
|
| 153 |
+
const activateAR = () => {
|
| 154 |
+
if (!app.xr.isAvailable(pc.XRTYPE_AR)) {
|
| 155 |
+
message("AR immersive indisponible sur cet appareil.");
|
| 156 |
+
return;
|
| 157 |
+
}
|
| 158 |
+
camera.camera.startXr(pc.XRTYPE_AR, pc.XRSPACE_LOCALFLOOR, {
|
| 159 |
+
callback: (err) => {
|
| 160 |
+
if (err) {
|
| 161 |
+
message(`Échec du démarrage AR : ${err.message}`);
|
| 162 |
+
}
|
| 163 |
+
},
|
| 164 |
+
});
|
| 165 |
+
};
|
| 166 |
+
|
| 167 |
+
// Démarrer AR au premier tap/clic
|
| 168 |
+
app.mouse.on("mousedown", () => {
|
| 169 |
+
if (!app.xr.active) activateAR();
|
| 170 |
+
});
|
| 171 |
+
if (app.touch) {
|
| 172 |
+
app.touch.on("touchend", (evt) => {
|
| 173 |
+
if (!app.xr.active) activateAR();
|
| 174 |
+
evt.event.preventDefault();
|
| 175 |
+
evt.event.stopPropagation();
|
| 176 |
+
});
|
| 177 |
+
}
|
| 178 |
+
|
| 179 |
+
// ESC pour quitter
|
| 180 |
+
app.keyboard.on("keydown", (evt) => {
|
| 181 |
+
if (evt.key === pc.KEY_ESCAPE && app.xr.active) app.xr.end();
|
| 182 |
+
});
|
| 183 |
+
|
| 184 |
+
// Hit test global (pour le réticule et le premier placement auto)
|
| 185 |
+
app.xr.hitTest.on("available", () => {
|
| 186 |
+
app.xr.hitTest.start({
|
| 187 |
+
entityTypes: [pc.XRTRACKABLE_POINT, pc.XRTRACKABLE_PLANE],
|
| 188 |
+
callback: (err, hitSource) => {
|
| 189 |
+
if (err) {
|
| 190 |
+
message("Le AR hit test n’a pas pu démarrer.");
|
| 191 |
+
return;
|
| 192 |
+
}
|
| 193 |
+
hitSource.on("result", (pos, rot) => {
|
| 194 |
+
reticle.enabled = true;
|
| 195 |
+
reticle.setPosition(pos);
|
| 196 |
+
reticle.setRotation(rot);
|
| 197 |
+
|
| 198 |
+
// Premier placement auto du modèle dès que possible
|
| 199 |
+
if (modelLoaded && !placedOnce) {
|
| 200 |
+
modelRoot.enabled = true;
|
| 201 |
+
modelRoot.setPosition(pos);
|
| 202 |
+
// Conserver uniquement la yaw (rotation Y) issue du plan
|
| 203 |
+
const euler = new pc.Vec3();
|
| 204 |
+
rot.getEulerAngles(euler);
|
| 205 |
+
modelRoot.setEulerAngles(0, euler.y, 0);
|
| 206 |
+
placedOnce = true;
|
| 207 |
+
message("Objet placé. ⚠️ Glissez pour déplacer, pincez/2 doigts pour tourner.");
|
| 208 |
+
}
|
| 209 |
+
});
|
| 210 |
+
},
|
| 211 |
+
});
|
| 212 |
+
});
|
| 213 |
+
|
| 214 |
+
// État & helpers d’interaction
|
| 215 |
+
let isDragging = false;
|
| 216 |
+
let activeInputSource = null;
|
| 217 |
+
let rotateMode = false;
|
| 218 |
+
let lastAvgX = 0; // pour rotation à 2 doigts
|
| 219 |
+
let lastMouseX = 0;
|
| 220 |
+
const ROTATE_SENSITIVITY = 0.25; // degrés par pixel env.
|
| 221 |
+
|
| 222 |
+
// Déplacement avec un input source XR (touch en AR)
|
| 223 |
+
app.xr.input.on("add", (inputSource) => {
|
| 224 |
+
// Sélection (tap et maintien)
|
| 225 |
+
inputSource.on("selectstart", () => {
|
| 226 |
+
if (!placedOnce || !modelLoaded) return;
|
| 227 |
+
|
| 228 |
+
// Démarre un hit test TRANSITOIRE lié à la source pour suivre le doigt
|
| 229 |
+
inputSource.hitTestStart({
|
| 230 |
+
entityTypes: [pc.XRTRACKABLE_POINT, pc.XRTRACKABLE_PLANE],
|
| 231 |
+
callback: (err, transientSource) => {
|
| 232 |
+
if (err) return;
|
| 233 |
+
isDragging = true;
|
| 234 |
+
activeInputSource = { source: inputSource, ht: transientSource };
|
| 235 |
+
|
| 236 |
+
transientSource.on("result", (pos, rot) => {
|
| 237 |
+
if (!isDragging) return;
|
| 238 |
+
// Déplacer sur le plan détecté
|
| 239 |
+
modelRoot.setPosition(pos);
|
| 240 |
+
});
|
| 241 |
+
|
| 242 |
+
transientSource.once("remove", () => {
|
| 243 |
+
if (activeInputSource && activeInputSource.ht === transientSource) {
|
| 244 |
+
isDragging = false;
|
| 245 |
+
activeInputSource = null;
|
| 246 |
+
}
|
| 247 |
+
});
|
| 248 |
+
},
|
| 249 |
+
});
|
| 250 |
+
});
|
| 251 |
+
|
| 252 |
+
inputSource.on("selectend", () => {
|
| 253 |
+
isDragging = false;
|
| 254 |
+
activeInputSource = null;
|
| 255 |
+
});
|
| 256 |
+
});
|
| 257 |
+
|
| 258 |
+
// ======== Gestes Tactiles pour rotation (2 doigts) ========
|
| 259 |
+
if (app.touch) {
|
| 260 |
+
let touches = new Map();
|
| 261 |
+
|
| 262 |
+
const getAvgX = () => {
|
| 263 |
+
if (touches.size === 0) return 0;
|
| 264 |
+
let sum = 0;
|
| 265 |
+
touches.forEach((t) => (sum += t.x));
|
| 266 |
+
return sum / touches.size;
|
| 267 |
+
};
|
| 268 |
+
|
| 269 |
+
app.touch.on("touchstart", (e) => {
|
| 270 |
+
for (const t of e.touches) touches.set(t.id, { x: t.x, y: t.y });
|
| 271 |
+
if (touches.size >= 2) {
|
| 272 |
+
rotateMode = true;
|
| 273 |
+
lastAvgX = getAvgX();
|
| 274 |
+
}
|
| 275 |
+
});
|
| 276 |
+
|
| 277 |
+
app.touch.on("touchmove", (e) => {
|
| 278 |
+
for (const t of e.touches) {
|
| 279 |
+
if (touches.has(t.id)) touches.set(t.id, { x: t.x, y: t.y });
|
| 280 |
+
}
|
| 281 |
+
if (rotateMode && modelRoot.enabled) {
|
| 282 |
+
const avgX = getAvgX();
|
| 283 |
+
const dx = avgX - lastAvgX;
|
| 284 |
+
lastAvgX = avgX;
|
| 285 |
+
// Appliquer rotation Y
|
| 286 |
+
const euler = modelRoot.getEulerAngles();
|
| 287 |
+
modelRoot.setEulerAngles(euler.x, euler.y + dx * ROTATE_SENSITIVITY, euler.z);
|
| 288 |
+
}
|
| 289 |
+
});
|
| 290 |
+
|
| 291 |
+
app.touch.on("touchend", (e) => {
|
| 292 |
+
for (const t of e.changedTouches) touches.delete(t.id);
|
| 293 |
+
if (touches.size < 2) rotateMode = false;
|
| 294 |
+
});
|
| 295 |
+
|
| 296 |
+
app.touch.on("touchcancel", () => {
|
| 297 |
+
touches.clear();
|
| 298 |
+
rotateMode = false;
|
| 299 |
+
});
|
| 300 |
+
}
|
| 301 |
+
|
| 302 |
+
// ======== Souris (déplacement = clic gauche maintenu; rotation = clic droit ou Shift+clic) ========
|
| 303 |
+
app.mouse.on("mousedown", (e) => {
|
| 304 |
+
if (!app.xr.active || !placedOnce) return;
|
| 305 |
+
|
| 306 |
+
if (e.button === 0 && !e.shiftKey) {
|
| 307 |
+
// drag pour déplacement : on démarre un hit-test à partir du centre de l’écran à chaque move
|
| 308 |
+
isDragging = true;
|
| 309 |
+
} else if (e.button === 2 || (e.button === 0 && e.shiftKey)) {
|
| 310 |
+
rotateMode = true;
|
| 311 |
+
lastMouseX = e.x;
|
| 312 |
+
}
|
| 313 |
+
});
|
| 314 |
+
|
| 315 |
+
app.mouse.on("mousemove", (e) => {
|
| 316 |
+
if (!app.xr.active || !placedOnce) return;
|
| 317 |
+
|
| 318 |
+
if (isDragging && app.xr.hitTest.supported) {
|
| 319 |
+
// Créer un hit test ponctuel lié au pointeur n’est pas direct via souris.
|
| 320 |
+
// Astuce : on projette un point écran -> monde en AR via hit test global du reticle
|
| 321 |
+
// Ici, on se sert du reticle déjà alimenté par le hit test continu pour repositionner rapidement.
|
| 322 |
+
if (reticle.enabled) {
|
| 323 |
+
const pos = reticle.getPosition();
|
| 324 |
+
modelRoot.setPosition(pos);
|
| 325 |
+
}
|
| 326 |
+
} else if (rotateMode && modelRoot.enabled) {
|
| 327 |
+
const dx = e.x - lastMouseX;
|
| 328 |
+
lastMouseX = e.x;
|
| 329 |
+
const euler = modelRoot.getEulerAngles();
|
| 330 |
+
modelRoot.setEulerAngles(euler.x, euler.y + dx * ROTATE_SENSITIVITY, euler.z);
|
| 331 |
+
}
|
| 332 |
+
});
|
| 333 |
+
|
| 334 |
+
app.mouse.on("mouseup", () => {
|
| 335 |
+
isDragging = false;
|
| 336 |
+
rotateMode = false;
|
| 337 |
+
});
|
| 338 |
+
|
| 339 |
+
// Empêcher le menu contextuel sur clic droit (utile pour la rotation)
|
| 340 |
+
window.addEventListener("contextmenu", (e) => e.preventDefault());
|
| 341 |
+
|
| 342 |
+
// ======== Événements AR globaux ========
|
| 343 |
+
app.xr.on("start", () => {
|
| 344 |
+
message("Session AR démarrée. Visez le sol pour détecter un plan…");
|
| 345 |
+
reticle.enabled = true;
|
| 346 |
+
});
|
| 347 |
+
|
| 348 |
+
app.xr.on("end", () => {
|
| 349 |
+
message("Session AR terminée.");
|
| 350 |
+
reticle.enabled = false;
|
| 351 |
+
isDragging = false;
|
| 352 |
+
rotateMode = false;
|
| 353 |
+
activeInputSource = null;
|
| 354 |
+
});
|
| 355 |
+
|
| 356 |
+
app.xr.on(`available:${pc.XRTYPE_AR}`, (available) => {
|
| 357 |
+
if (!available) {
|
| 358 |
+
message("AR immersive indisponible.");
|
| 359 |
+
} else if (!app.xr.hitTest.supported) {
|
| 360 |
+
message("AR Hit Test non supporté.");
|
| 361 |
+
} else {
|
| 362 |
+
message(modelLoaded ? "Touchez l’écran pour démarrer l’AR." : "Chargement du modèle…");
|
| 363 |
+
}
|
| 364 |
+
});
|
| 365 |
+
|
| 366 |
+
// Messages initiaux
|
| 367 |
+
if (!app.xr.isAvailable(pc.XRTYPE_AR)) {
|
| 368 |
+
message("AR immersive indisponible.");
|
| 369 |
+
} else if (!app.xr.hitTest.supported) {
|
| 370 |
+
message("AR Hit Test non supporté.");
|
| 371 |
+
} else {
|
| 372 |
+
message("Chargement du modèle…");
|
| 373 |
+
}
|
| 374 |
+
}
|
| 375 |
+
})();
|