Update viewer.js

viewer.js

@@ -1,7 +1,10 @@
 // viewer.js
 // ==============================
 
-/* Util: charge une image comme texture PlayCanvas */
+/* -------------------------------------------
+   Utils
+-------------------------------------------- */
+
 async function loadImageAsTexture(url, app) {
   return new Promise((resolve, reject) => {
     const img = new window.Image();
@@ -20,7 +23,7 @@ async function loadImageAsTexture(url, app) {
   });
 }
 
-/* Patch global: toutes les Image() -> crossOrigin="anonymous" */
+// Patch global Image -> force CORS
 (function () {
   const OriginalImage = window.Image;
   window.Image = function (...args) {
@@ -30,10 +33,9 @@ async function loadImageAsTexture(url, app) {
   };
 })();
 
-/* Couleur hex -> tableau RGBA [0..1] */
 function hexToRgbaArray(hex) {
   try {
-    hex = hex.replace("#", "");
+    hex = String(hex || "").replace("#", "");
     if (hex.length === 6) hex += "FF";
     if (hex.length !== 8) return [1, 1, 1, 1];
     const num = parseInt(hex, 16);
@@ -44,12 +46,12 @@ function hexToRgbaArray(hex) {
       (num & 0xff) / 255
     ];
   } catch (e) {
-    alert("hexToRgbaArray error: " + e);
+    console.warn("hexToRgbaArray error:", e);
     return [1, 1, 1, 1];
   }
 }
 
-/* Parcours récursif d'entités */
+// Parcours récursif d'une hiérarchie d'entités
 function traverse(entity, callback) {
   callback(entity);
   if (entity.children) {
@@ -57,7 +59,39 @@ function traverse(entity, callback) {
   }
 }
 
-/* --- État module (1 import = 1 instance) --- */
+/* -------------------------------------------
+   Chargement unique de orbit-camera.js
+-------------------------------------------- */
+
+async function ensureOrbitScriptsLoaded() {
+  if (window.__PLY_ORBIT_LOADED__) return;
+  if (window.__PLY_ORBIT_LOADING__) {
+    await window.__PLY_ORBIT_LOADING__;
+    return;
+  }
+
+  window.__PLY_ORBIT_LOADING__ = new Promise((resolve, reject) => {
+    const s = document.createElement("script");
+    s.src = "https://mikafil-viewer-sgos.static.hf.space/orbit-camera.js";
+    s.async = true;
+    s.onload = () => {
+      window.__PLY_ORBIT_LOADED__ = true;
+      resolve();
+    };
+    s.onerror = (e) => {
+      console.error("[viewer.js] Failed to load orbit-camera.js", e);
+      reject(e);
+    };
+    document.head.appendChild(s);
+  });
+
+  await window.__PLY_ORBIT_LOADING__;
+}
+
+/* -------------------------------------------
+   State (par module = par instance importée)
+-------------------------------------------- */
+
 let pc;
 export let app = null;
 let cameraEntity = null;
@@ -65,680 +99,392 @@ let modelEntity = null;
 let viewerInitialized = false;
 let resizeObserver = null;
 
-/* Contexte instance */
+// paramètres courants de l'instance
 let chosenCameraX, chosenCameraY, chosenCameraZ;
-let minZoom, maxZoom, minAngle, maxAngle, minAzimuth, maxAzimuth, minPivotY, minY;
+let minZoom, maxZoom, minAngle, maxAngle, minAzimuth, maxAzimuth, minY;
 let modelX, modelY, modelZ, modelScale, modelRotationX, modelRotationY, modelRotationZ;
 let presentoirScaleX, presentoirScaleY, presentoirScaleZ;
 let sogsUrl, glbUrl, presentoirUrl;
 let color_bg_hex, color_bg, espace_expo_bool;
 
-/* Nom dynamique des scripts d'orbit pour CETTE instance */
-let ORBIT_BASE = "";       // ex: orbitCamera__abcd1234
-let ORBIT_MOUSE = "";
-let ORBIT_TOUCH = "";
-let ORBIT_KEYS  = "";
-
-/* Enregistre les 4 scripts d’orbit avec des NOMS UNIQUES par instance */
-function registerOrbitScriptsForInstance(suffix) {
-  ORBIT_BASE = `orbitCamera__${suffix}`;
-  ORBIT_MOUSE = `orbitCameraInputMouse__${suffix}`;
-  ORBIT_TOUCH = `orbitCameraInputTouch__${suffix}`;
-  ORBIT_KEYS = `orbitCameraInputKeyboard__${suffix}`;
-
-  // ============== Orbit Camera (base) =================
-  const OrbitCamera = pc.createScript(ORBIT_BASE);
-
-  OrbitCamera.attributes.add("distanceMax", { type: "number", default: 20, title: "Distance Max" });
-  OrbitCamera.attributes.add("distanceMin", { type: "number", default: 1, title: "Distance Min" });
-  OrbitCamera.attributes.add("pitchAngleMax", { type: "number", default: 90, title: "Pitch Angle Max (degrees)" });
-  OrbitCamera.attributes.add("pitchAngleMin", { type: "number", default: 0, title: "Pitch Angle Min (degrees)" });
-  OrbitCamera.attributes.add("yawAngleMax", { type: "number", default: 360, title: "Yaw Angle Max (degrees)" });
-  OrbitCamera.attributes.add("yawAngleMin", { type: "number", default: -360, title: "Yaw Angle Min (degrees)" });
-  OrbitCamera.attributes.add("minY", { type: "number", default: 0, title: "Minimum Y" });
-
-  OrbitCamera.attributes.add("inertiaFactor", { type: "number", default: 0.2, title: "Inertia Factor" });
-  OrbitCamera.attributes.add("focusEntity", { type: "entity", title: "Focus Entity" });
-  OrbitCamera.attributes.add("frameOnStart", { type: "boolean", default: true, title: "Frame on Start" });
-
-  Object.defineProperty(OrbitCamera.prototype, "distance", {
-    get: function () { return this._targetDistance; },
-    set: function (value) { this._targetDistance = this._clampDistance(value); }
-  });
-
-  Object.defineProperty(OrbitCamera.prototype, "orthoHeight", {
-    get: function () { return this.entity.camera.orthoHeight; },
-    set: function (value) { this.entity.camera.orthoHeight = Math.max(0, value); }
-  });
-
-  Object.defineProperty(OrbitCamera.prototype, "pitch", {
-    get: function () { return this._targetPitch; },
-    set: function (value) { this._targetPitch = this._clampPitchAngle(value); }
-  });
-
-  Object.defineProperty(OrbitCamera.prototype, "yaw", {
-    get: function () { return this._targetYaw; },
-    set: function (value) { this._targetYaw = this._clampYawAngle(value); }
-  });
-
-  Object.defineProperty(OrbitCamera.prototype, "pivotPoint", {
-    get: function () { return this._pivotPoint; },
-    set: function (value) { this._pivotPoint.copy(value); }
-  });
-
-  OrbitCamera.prototype.focus = function (focusEntity) {
-    this._buildAabb(focusEntity);
-    const halfExtents = this._modelsAabb.halfExtents;
-    const radius = Math.max(halfExtents.x, Math.max(halfExtents.y, halfExtents.z));
-    this.distance = (radius * 1.5) / Math.sin(0.5 * this.entity.camera.fov * pc.math.DEG_TO_RAD);
-    this._removeInertia();
-    this._pivotPoint.copy(this._modelsAabb.center);
-  };
-
-  OrbitCamera.distanceBetween = new pc.Vec3();
-
-  OrbitCamera.prototype.resetAndLookAtPoint = function (resetPoint, lookAtPoint) {
-    this.pivotPoint.copy(lookAtPoint);
-    this.entity.setPosition(resetPoint);
-    this.entity.lookAt(lookAtPoint);
-    const distance = OrbitCamera.distanceBetween;
-    distance.sub2(lookAtPoint, resetPoint);
-    this.distance = distance.length();
-    this.pivotPoint.copy(lookAtPoint);
-    const cameraQuat = this.entity.getRotation();
-    this.yaw = this._calcYaw(cameraQuat);
-    this.pitch = this._calcPitch(cameraQuat, this.yaw);
-    this._removeInertia();
-    this._updatePosition();
-  };
-
-  OrbitCamera.prototype.resetAndLookAtEntity = function (resetPoint, entity) {
-    this._buildAabb(entity);
-    this.resetAndLookAtPoint(resetPoint, this._modelsAabb.center);
-  };
-
-  OrbitCamera.prototype.reset = function (yaw, pitch, distance) {
-    this.pitch = pitch;
-    this.yaw = yaw;
-    this.distance = distance;
-    this._removeInertia();
-  };
-
-  OrbitCamera.prototype.resetToPosition = function (position, lookAtPoint) {
-    this.entity.setPosition(position);
-    this.entity.lookAt(lookAtPoint);
-    this._pivotPoint.copy(lookAtPoint);
-    const distanceVec = new pc.Vec3();
-    distanceVec.sub2(position, lookAtPoint);
-    this._targetDistance = this._distance = distanceVec.length();
-    const cameraQuat = this.entity.getRotation();
-    this._targetYaw = this._yaw = this._calcYaw(cameraQuat);
-    this._targetPitch = this._pitch = this._calcPitch(cameraQuat, this._yaw);
-    this._removeInertia();
-    this._updatePosition();
-  };
-
-  // Helper: calc cam Y if pivot became 'pivot' (enforce minY)
-  OrbitCamera.prototype.worldCameraYForPivot = function (pivot) {
-    const quat = new pc.Quat().setFromEulerAngles(this._pitch, this._yaw, 0);
-    const forward = new pc.Vec3();
-    quat.transformVector(pc.Vec3.FORWARD, forward);
-    const camPos = pivot.clone().add(forward.clone().scale(-this._distance));
-    return camPos.y;
-  };
-
-  // --------- Private ----------
-  OrbitCamera.prototype.initialize = function () {
-    const self = this;
-    const onWindowResize = function () { self._checkAspectRatio(); };
-    window.addEventListener("resize", onWindowResize, false);
-    this._checkAspectRatio();
-
-    this._modelsAabb = new pc.BoundingBox();
-    this._buildAabb(this.focusEntity || this.app.root);
-
-    this.entity.lookAt(this._modelsAabb.center);
-    this._pivotPoint = new pc.Vec3().copy(this._modelsAabb.center);
-
-    const cameraQuat = this.entity.getRotation();
-    this._yaw = this._calcYaw(cameraQuat);
-    this._pitch = this._clampPitchAngle(this._calcPitch(cameraQuat, this._yaw));
-    this.entity.setLocalEulerAngles(this._pitch, this._yaw, 0);
-
-    this._distance = 0;
-    this._targetYaw = this._yaw;
-    this._targetPitch = this._pitch;
-
-    if (this.frameOnStart) {
-      this.focus(this.focusEntity || this.app.root);
-    } else {
-      const distanceBetween = new pc.Vec3();
-      distanceBetween.sub2(this.entity.getPosition(), this._pivotPoint);
-      this._distance = this._clampDistance(distanceBetween.length());
-    }
-    this._targetDistance = this._distance;
-
-    this.on("attr:distanceMin", function () { this._distance = this._clampDistance(this._distance); });
-    this.on("attr:distanceMax", function () { this._distance = this._clampDistance(this._distance); });
-    this.on("attr:pitchAngleMin", function () { this._pitch = this._clampPitchAngle(this._pitch); });
-    this.on("attr:pitchAngleMax", function () { this._pitch = this._clampPitchAngle(this._pitch); });
-
-    this.on("attr:focusEntity", function (value) {
-      if (this.frameOnStart) this.focus(value || this.app.root);
-      else this.resetAndLookAtEntity(this.entity.getPosition(), value || this.app.root);
-    });
-
-    this.on("attr:frameOnStart", function (value) {
-      if (value) this.focus(this.focusEntity || this.app.root);
-    });
-
-    this.on("destroy", function () { window.removeEventListener("resize", onWindowResize, false); });
-  };
-
-  OrbitCamera.prototype.update = function (dt) {
-    const t = this.inertiaFactor === 0 ? 1 : Math.min(dt / this.inertiaFactor, 1);
-    this._distance = pc.math.lerp(this._distance, this._targetDistance, t);
-    this._yaw = pc.math.lerp(this._yaw, this._targetYaw, t);
-    this._pitch = pc.math.lerp(this._pitch, this._targetPitch, t);
-    this._updatePosition();
-  };
-
-  OrbitCamera.prototype._updatePosition = function () {
-    this.entity.setLocalPosition(0, 0, 0);
-    this.entity.setLocalEulerAngles(this._pitch, this._yaw, 0);
-
-    const position = this.entity.getPosition();
-    position.copy(this.entity.forward);
-    position.mulScalar(-this._distance);
-    position.add(this.pivotPoint);
-
-    // Ne jamais passer sous minY
-    position.y = Math.max(position.y, this.minY);
-
-    this.entity.setPosition(position);
-  };
-
-  OrbitCamera.prototype._removeInertia = function () {
-    this._yaw = this._targetYaw;
-    this._pitch = this._targetPitch;
-    this._distance = this._targetDistance;
-  };
+/* -------------------------------------------
+   Initialisation
+-------------------------------------------- */
 
-  OrbitCamera.prototype._checkAspectRatio = function () {
-    const h = this.app.graphicsDevice.height;
-    const w = this.app.graphicsDevice.width;
-    this.entity.camera.horizontalFov = (h > w);
-  };
+export async function initializeViewer(config, instanceId) {
+  // ce module ES est importé avec un param unique ?inst=..., donc 1 instance par import
+  if (viewerInitialized) return;
 
-  OrbitCamera.prototype._buildAabb = function (entity) {
-    let i, m;
-    const meshInstances = [];
+  const isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent);
+  const isMobile = isIOS || /Android/i.test(navigator.userAgent);
 
-    const renders = entity.findComponents("render");
-    for (i = 0; i < renders.length; i++) {
-      const render = renders[i];
-      for (m = 0; m < render.meshInstances.length; m++) {
-        meshInstances.push(render.meshInstances[m]);
-      }
-    }
+  // --- Configuration ---
+  sogsUrl = config.sogs_json_url;
 
-    const models = entity.findComponents("model");
-    for (i = 0; i < models.length; i++) {
-      const model = models[i];
-      for (m = 0; m < model.meshInstances.length; m++) {
-        meshInstances.push(model.meshInstances[m]);
-      }
-    }
+  glbUrl =
+    config.glb_url !== undefined
+      ? config.glb_url
+      : "https://huggingface.co/datasets/MikaFil/viewer_gs/resolve/main/ressources/espace_expo/sol_blanc_2.glb";
 
-    const gsplats = entity.findComponents("gsplat");
-    for (i = 0; i < gsplats.length; i++) {
-      const gsplat = gsplats[i];
-      const instance = gsplat.instance;
-      if (instance?.meshInstance) meshInstances.push(instance.meshInstance);
-    }
+  presentoirUrl =
+    config.presentoir_url !== undefined
+      ? config.presentoir_url
+      : "https://huggingface.co/datasets/MikaFil/viewer_gs/resolve/main/ressources/espace_expo/sol_blanc_2.glb";
 
-    for (i = 0; i < meshInstances.length; i++) {
-      if (i === 0) this._modelsAabb.copy(meshInstances[i].aabb);
-      else this._modelsAabb.add(meshInstances[i].aabb);
+  minZoom = parseFloat(config.minZoom || "1");
+  maxZoom = parseFloat(config.maxZoom || "20");
+  minAngle = parseFloat(config.minAngle || "-45");
+  maxAngle = parseFloat(config.maxAngle || "90");
+  minAzimuth = config.minAzimuth !== undefined ? parseFloat(config.minAzimuth) : -360;
+  maxAzimuth = config.maxAzimuth !== undefined ? parseFloat(config.maxAzimuth) : 360;
+  minY = config.minY !== undefined ? parseFloat(config.minY) : 0;
+
+  modelX = config.modelX !== undefined ? parseFloat(config.modelX) : 0;
+  modelY = config.modelY !== undefined ? parseFloat(config.modelY) : 0;
+  modelZ = config.modelZ !== undefined ? parseFloat(config.modelZ) : 0;
+  modelScale = config.modelScale !== undefined ? parseFloat(config.modelScale) : 1;
+  modelRotationX = config.modelRotationX !== undefined ? parseFloat(config.modelRotationX) : 0;
+  modelRotationY = config.modelRotationY !== undefined ? parseFloat(config.modelRotationY) : 0;
+  modelRotationZ = config.modelRotationZ !== undefined ? parseFloat(config.modelRotationZ) : 0;
+
+  presentoirScaleX = config.presentoirScaleX !== undefined ? parseFloat(config.presentoirScaleX) : 0;
+  presentoirScaleY = config.presentoirScaleY !== undefined ? parseFloat(config.presentoirScaleY) : 0;
+  presentoirScaleZ = config.presentoirScaleZ !== undefined ? parseFloat(config.presentoirScaleZ) : 0;
+
+  const cameraX = config.cameraX !== undefined ? parseFloat(config.cameraX) : 0;
+  const cameraY = config.cameraY !== undefined ? parseFloat(config.cameraY) : 2;
+  const cameraZ = config.cameraZ !== undefined ? parseFloat(config.cameraZ) : 5;
+
+  const cameraXPhone = config.cameraXPhone !== undefined ? parseFloat(config.cameraXPhone) : cameraX;
+  const cameraYPhone = config.cameraYPhone !== undefined ? parseFloat(config.cameraYPhone) : cameraY;
+  const cameraZPhone = config.cameraZPhone !== undefined ? parseFloat(config.cameraZPhone) : cameraZ * 1.5;
+
+  color_bg_hex = config.canvas_background !== undefined ? config.canvas_background : "#FFFFFF";
+  espace_expo_bool = config.espace_expo_bool !== undefined ? config.espace_expo_bool : false;
+  color_bg = hexToRgbaArray(color_bg_hex);
+
+  chosenCameraX = isMobile ? cameraXPhone : cameraX;
+  chosenCameraY = isMobile ? cameraYPhone : cameraY;
+  chosenCameraZ = isMobile ? cameraZPhone : cameraZ;
+
+  // --- Prépare le canvas unique à cette instance ---
+  const canvasId = "canvas-" + instanceId;
+  const progressDialog = document.getElementById("progress-dialog-" + instanceId);
+  const viewerContainer = document.getElementById("viewer-container-" + instanceId);
+
+  const old = document.getElementById(canvasId);
+  if (old) old.remove();
+
+  const canvas = document.createElement("canvas");
+  canvas.id = canvasId;
+  canvas.className = "ply-canvas";
+  canvas.style.width = "100%";
+  canvas.style.height = "100%";
+  canvas.setAttribute("tabindex", "0");
+  viewerContainer.insertBefore(canvas, progressDialog);
+
+  // interactions de base
+  canvas.style.touchAction = "none";
+  canvas.style.webkitTouchCallout = "none";
+  canvas.addEventListener("gesturestart", (e) => e.preventDefault());
+  canvas.addEventListener("gesturechange", (e) => e.preventDefault());
+  canvas.addEventListener("gestureend", (e) => e.preventDefault());
+  canvas.addEventListener("dblclick", (e) => e.preventDefault());
+  canvas.addEventListener(
+    "touchstart",
+    (e) => {
+      if (e.touches.length > 1) e.preventDefault();
+    },
+    { passive: false }
+  );
+  canvas.addEventListener(
+    "wheel",
+    (e) => {
+      e.preventDefault();
+    },
+    { passive: false }
+  );
+
+  // Bloque le scroll page uniquement quand le pointeur est sur le canvas
+  const scrollKeys = new Set([
+    "ArrowUp",
+    "ArrowDown",
+    "ArrowLeft",
+    "ArrowRight",
+    "PageUp",
+    "PageDown",
+    "Home",
+    "End",
+    " ",
+    "Space",
+    "Spacebar"
+  ]);
+  let isPointerOverCanvas = false;
+  const focusCanvas = () => canvas.focus({ preventScroll: true });
+
+  const onPointerEnter = () => {
+    isPointerOverCanvas = true;
+    focusCanvas();
+  };
+  const onPointerLeave = () => {
+    isPointerOverCanvas = false;
+    if (document.activeElement === canvas) canvas.blur();
+  };
+  const onCanvasBlur = () => {
+    isPointerOverCanvas = false;
+  };
+
+  canvas.addEventListener("pointerenter", onPointerEnter);
+  canvas.addEventListener("pointerleave", onPointerLeave);
+  canvas.addEventListener("mouseenter", onPointerEnter);
+  canvas.addEventListener("mouseleave", onPointerLeave);
+  canvas.addEventListener("mousedown", focusCanvas);
+  canvas.addEventListener(
+    "touchstart",
+    () => {
+      focusCanvas();
+    },
+    { passive: false }
+  );
+  canvas.addEventListener("blur", onCanvasBlur);
+
+  const onKeyDownCapture = (e) => {
+    if (!isPointerOverCanvas) return;
+    if (scrollKeys.has(e.key) || scrollKeys.has(e.code)) {
+      e.preventDefault();
     }
   };
+  window.addEventListener("keydown", onKeyDownCapture, true);
 
-  OrbitCamera.prototype._calcYaw = function (quat) {
-    const transformedForward = new pc.Vec3();
-    quat.transformVector(pc.Vec3.FORWARD, transformedForward);
-    return Math.atan2(-transformedForward.x, -transformedForward.z) * pc.math.RAD_TO_DEG;
-  };
-
-  OrbitCamera.prototype._clampDistance = function (distance) {
-    if (this.distanceMax > 0) return pc.math.clamp(distance, this.distanceMin, this.distanceMax);
-    return Math.max(distance, this.distanceMin);
-  };
+  progressDialog.style.display = "block";
 
-  OrbitCamera.prototype._clampPitchAngle = function (pitch) {
-    return pc.math.clamp(pitch, this.pitchAngleMin, this.pitchAngleMax);
-  };
-
-  OrbitCamera.prototype._clampYawAngle = function (yaw) {
-    return pc.math.clamp(yaw, -this.yawAngleMax, -this.yawAngleMin);
-  };
+  // --- Charge PlayCanvas lib ESM (une par module/instance) ---
+  if (!pc) {
+    pc = await import("https://esm.run/playcanvas");
+    window.pc = pc; // utiles pour tooltips.js
+  }
 
-  const quatWithoutYaw = new pc.Quat();
-  const yawOffset = new pc.Quat();
-  OrbitCamera.prototype._calcPitch = function (quat, yaw) {
-    yawOffset.setFromEulerAngles(0, -yaw, 0);
-    quatWithoutYaw.mul2(yawOffset, quat);
-    const transformedForward = new pc.Vec3();
-    quatWithoutYaw.transformVector(pc.Vec3.FORWARD, transformedForward);
-    return Math.atan2(-transformedForward.y, -transformedForward.z) * pc.math.RAD_TO_DEG;
-  };
+  // --- Crée l'Application ---
+  const device = await pc.createGraphicsDevice(canvas, {
+    deviceTypes: ["webgl2"],
+    glslangUrl: "https://playcanvas.vercel.app/static/lib/glslang/glslang.js",
+    twgslUrl: "https://playcanvas.vercel.app/static/lib/twgsl/twgsl.js",
+    antialias: false
+  });
+  device.maxPixelRatio = Math.min(window.devicePixelRatio, 2);
+
+  const opts = new pc.AppOptions();
+  opts.graphicsDevice = device;
+  opts.mouse = new pc.Mouse(canvas);
+  opts.touch = new pc.TouchDevice(canvas);
+  opts.keyboard = new pc.Keyboard(canvas); // clavier scoping canvas
+  opts.componentSystems = [
+    pc.RenderComponentSystem,
+    pc.CameraComponentSystem,
+    pc.LightComponentSystem,
+    pc.ScriptComponentSystem,
+    pc.GSplatComponentSystem,
+    pc.CollisionComponentSystem,
+    pc.RigidbodyComponentSystem
+  ];
+  opts.resourceHandlers = [pc.TextureHandler, pc.ContainerHandler, pc.ScriptHandler, pc.GSplatHandler];
+
+  app = new pc.Application(canvas, opts);
+  app.setCanvasFillMode(pc.FILLMODE_NONE);
+  app.setCanvasResolution(pc.RESOLUTION_AUTO);
+
+  resizeObserver = new ResizeObserver((entries) => {
+    entries.forEach((entry) => {
+      app.resizeCanvas(entry.contentRect.width, entry.contentRect.height);
+    });
+  });
+  resizeObserver.observe(viewerContainer);
+
+  window.addEventListener("resize", () =>
+    app.resizeCanvas(viewerContainer.clientWidth, viewerContainer.clientHeight)
+  );
+
+  // Nettoyage complet
+  app.on("destroy", () => {
+    try {
+      resizeObserver.disconnect();
+    } catch {}
+    if (opts.keyboard && opts.keyboard.detach) opts.keyboard.detach();
+
+    window.removeEventListener("keydown", onKeyDownCapture, true);
+
+    canvas.removeEventListener("pointerenter", onPointerEnter);
+    canvas.removeEventListener("pointerleave", onPointerLeave);
+    canvas.removeEventListener("mouseenter", onPointerEnter);
+    canvas.removeEventListener("mouseleave", onPointerLeave);
+    canvas.removeEventListener("mousedown", focusCanvas);
+    canvas.removeEventListener("touchstart", focusCanvas);
+    canvas.removeEventListener("blur", onCanvasBlur);
+  });
 
-  // ============== Orbit Camera Input Mouse =================
-  const OrbitCameraInputMouse = pc.createScript(ORBIT_MOUSE);
-  OrbitCameraInputMouse.attributes.add("orbitSensitivity", { type: "number", default: 0.3, title: "Orbit Sensitivity" });
-  OrbitCameraInputMouse.attributes.add("distanceSensitivity", { type: "number", default: 0.4, title: "Distance Sensitivity" });
-
-  OrbitCameraInputMouse.prototype.initialize = function () {
-    this.orbitCamera = this.entity.script[ORBIT_BASE];
-
-    if (this.orbitCamera) {
-      const self = this;
-      const onMouseOut = function () { self.onMouseOut(); };
-
-      this.app.mouse.on(pc.EVENT_MOUSEDOWN, this.onMouseDown, this);
-      this.app.mouse.on(pc.EVENT_MOUSEUP, this.onMouseUp, this);
-      this.app.mouse.on(pc.EVENT_MOUSEMOVE, this.onMouseMove, this);
-      this.app.mouse.on(pc.EVENT_MOUSEWHEEL, this.onMouseWheel, this);
-      window.addEventListener("mouseout", onMouseOut, false);
-
-      this.on("destroy", function () {
-        this.app.mouse.off(pc.EVENT_MOUSEDOWN, this.onMouseDown, this);
-        this.app.mouse.off(pc.EVENT_MOUSEUP, this.onMouseUp, this);
-        this.app.mouse.off(pc.EVENT_MOUSEMOVE, this.onMouseMove, this);
-        this.app.mouse.off(pc.EVENT_MOUSEWHEEL, this.onMouseWheel, this);
-        window.removeEventListener("mouseout", onMouseOut, false);
+  // --- Enregistre les assets (SAUF orbit script : chargé globalement) ---
+  const assets = {
+    sogs: new pc.Asset("gsplat", "gsplat", { url: sogsUrl }),
+    glb: new pc.Asset("glb", "container", { url: glbUrl }),
+    presentoir: new pc.Asset("presentoir", "container", { url: presentoirUrl })
+  };
+  for (const k in assets) app.assets.add(assets[k]);
+
+  const loader = new pc.AssetListLoader(Object.values(assets), app.assets);
+
+  // Assure orbit-camera.js une seule fois
+  await ensureOrbitScriptsLoaded();
+
+  loader.load(() => {
+    app.start();
+    progressDialog.style.display = "none";
+
+    // --- Modèle principal (gsplat) ---
+    modelEntity = new pc.Entity("model");
+    modelEntity.addComponent("gsplat", { asset: assets.sogs });
+    modelEntity.setLocalPosition(modelX, modelY, modelZ);
+    modelEntity.setLocalEulerAngles(modelRotationX, modelRotationY, modelRotationZ);
+    modelEntity.setLocalScale(modelScale, modelScale, modelScale);
+    app.root.addChild(modelEntity);
+
+    // --- Sol / environnement ---
+    const glbEntity = assets.glb.resource.instantiateRenderEntity();
+    app.root.addChild(glbEntity);
+
+    const presentoirEntity = assets.presentoir.resource.instantiateRenderEntity();
+    presentoirEntity.setLocalScale(presentoirScaleX, presentoirScaleY, presentoirScaleZ);
+    app.root.addChild(presentoirEntity);
+
+    if (!espace_expo_bool) {
+      const matSol = new pc.StandardMaterial();
+      matSol.blendType = pc.BLEND_NONE;
+      matSol.emissive = new pc.Color(color_bg);
+      matSol.emissiveIntensity = 1;
+      matSol.useLighting = false;
+      matSol.update();
+
+      traverse(presentoirEntity, (node) => {
+        if (node.render && node.render.meshInstances) {
+          for (const mi of node.render.meshInstances) mi.material = matSol;
+        }
       });
-    }
-
-    this.app.mouse.disableContextMenu();
-    this.lookButtonDown = false;
-    this.panButtonDown = false;
-    this.lastPoint = new pc.Vec2();
-  };
-
-  OrbitCameraInputMouse.fromWorldPoint = new pc.Vec3();
-  OrbitCameraInputMouse.toWorldPoint = new pc.Vec3();
-  OrbitCameraInputMouse.worldDiff = new pc.Vec3();
-
-  OrbitCameraInputMouse.prototype.pan = function (screenPoint) {
-    const fromWorldPoint = OrbitCameraInputMouse.fromWorldPoint;
-    const toWorldPoint = OrbitCameraInputMouse.toWorldPoint;
-    const worldDiff = OrbitCameraInputMouse.worldDiff;
-
-    const camera = this.entity.camera;
-    const distance = this.orbitCamera.distance;
-
-    camera.screenToWorld(screenPoint.x, screenPoint.y, distance, fromWorldPoint);
-    camera.screenToWorld(this.lastPoint.x, this.lastPoint.y, distance, toWorldPoint);
-
-    worldDiff.sub2(toWorldPoint, fromWorldPoint);
-
-    // Respecter minY (comme les flèches)
-    let proposedPivot = this.orbitCamera.pivotPoint.clone().add(worldDiff);
-    const minY = this.orbitCamera.minY;
-    let resultingY = this.orbitCamera.worldCameraYForPivot(proposedPivot);
-
-    if (resultingY >= minY - 1e-4) {
-      this.orbitCamera.pivotPoint.add(worldDiff);
-    } else {
-      worldDiff.y = 0;
-      proposedPivot = this.orbitCamera.pivotPoint.clone().add(worldDiff);
-      resultingY = this.orbitCamera.worldCameraYForPivot(proposedPivot);
-      if (resultingY >= minY - 1e-4) this.orbitCamera.pivotPoint.add(worldDiff);
-    }
-  };
-
-  OrbitCameraInputMouse.prototype.onMouseDown = function (event) {
-    switch (event.button) {
-      case pc.MOUSEBUTTON_LEFT: this.panButtonDown = true; break;
-      case pc.MOUSEBUTTON_MIDDLE:
-      case pc.MOUSEBUTTON_RIGHT: this.lookButtonDown = true; break;
-    }
-  };
-
-  OrbitCameraInputMouse.prototype.onMouseUp = function (event) {
-    switch (event.button) {
-      case pc.MOUSEBUTTON_LEFT: this.panButtonDown = false; break;
-      case pc.MOUSEBUTTON_MIDDLE:
-      case pc.MOUSEBUTTON_RIGHT: this.lookButtonDown = false; break;
-    }
-  };
-
-  OrbitCameraInputMouse.prototype.onMouseMove = function (event) {
-    if (this.lookButtonDown) {
-      const sens = this.orbitSensitivity;
-
-      const deltaPitch = event.dy * sens;
-      const deltaYaw = event.dx * sens;
-
-      const currPitch = this.orbitCamera.pitch;
-      const currYaw = this.orbitCamera.yaw;
-      const currDist = this.orbitCamera.distance;
-      const currPivot = this.orbitCamera.pivotPoint.clone();
-
-      const camQuat = new pc.Quat().setFromEulerAngles(currPitch, currYaw, 0);
-      const forward = new pc.Vec3(); camQuat.transformVector(pc.Vec3.FORWARD, forward);
-      const preY = currPivot.y + (-forward.y) * currDist;
-
-      const proposedPitch = currPitch - deltaPitch;
-      const testQuat = new pc.Quat().setFromEulerAngles(proposedPitch, currYaw, 0);
-      const testForward = new pc.Vec3(); testQuat.transformVector(pc.Vec3.FORWARD, testForward);
-      const proposedY = currPivot.y + (-testForward.y) * currDist;
-
-      const minY = this.orbitCamera.minY;
-      const wouldGoBelow = proposedY < minY - 1e-4;
-
-      if (wouldGoBelow && (proposedY < preY)) {
-        this.orbitCamera.yaw = currYaw - deltaYaw;
-      } else {
-        this.orbitCamera.pitch = proposedPitch;
-        this.orbitCamera.yaw = currYaw - deltaYaw;
-      }
-    } else if (this.panButtonDown) {
-      this.pan(new pc.Vec2(event.x, event.y));
-    }
-
-    this.lastPoint.set(event.x, event.y);
-  };
-
-  OrbitCameraInputMouse.prototype.onMouseWheel = function (event) {
-    if (this.entity.camera.projection === pc.PROJECTION_PERSPECTIVE) {
-      this.orbitCamera.distance -= event.wheelDelta * this.distanceSensitivity * (this.orbitCamera.distance * 0.1);
-    } else {
-      this.orbitCamera.orthoHeight -= event.wheelDelta * this.distanceSensitivity * (this.orbitCamera.orthoHeight * 0.1);
-    }
-    event.event.preventDefault();
-  };
-
-  OrbitCameraInputMouse.prototype.onMouseOut = function () {
-    this.lookButtonDown = false;
-    this.panButtonDown = false;
-  };
 
-  // ============== Orbit Camera Input Touch =================
-  const OrbitCameraInputTouch = pc.createScript(ORBIT_TOUCH);
-  OrbitCameraInputTouch.attributes.add("orbitSensitivity", { type: "number", default: 0.6, title: "Orbit Sensitivity" });
-  OrbitCameraInputTouch.attributes.add("distanceSensitivity", { type: "number", default: 0.5, title: "Distance Sensitivity" });
-
-  OrbitCameraInputTouch.prototype.initialize = function () {
-    this.orbitCamera = this.entity.script[ORBIT_BASE];
-    this.lastTouchPoint = new pc.Vec2();
-    this.lastPinchMidPoint = new pc.Vec2();
-    this.lastPinchDistance = 0;
-
-    if (this.orbitCamera && this.app.touch) {
-      this.app.touch.on(pc.EVENT_TOUCHSTART, this.onTouchStartEndCancel, this);
-      this.app.touch.on(pc.EVENT_TOUCHEND, this.onTouchStartEndCancel, this);
-      this.app.touch.on(pc.EVENT_TOUCHCANCEL, this.onTouchStartEndCancel, this);
-      this.app.touch.on(pc.EVENT_TOUCHMOVE, this.onTouchMove, this);
-
-      this.on("destroy", function () {
-        this.app.touch.off(pc.EVENT_TOUCHSTART, this.onTouchStartEndCancel, this);
-        this.app.touch.off(pc.EVENT_TOUCHEND, this.onTouchStartEndCancel, this);
-        this.app.touch.off(pc.EVENT_TOUCHCANCEL, this.onTouchStartEndCancel, this);
-        this.app.touch.off(pc.EVENT_TOUCHMOVE, this.onTouchMove, this);
+      traverse(glbEntity, (node) => {
+        if (node.render && node.render.meshInstances) {
+          for (const mi of node.render.meshInstances) mi.material = matSol;
+        }
       });
     }
-  };
-
-  OrbitCameraInputTouch.prototype.getPinchDistance = function (pointA, pointB) {
-    const dx = pointA.x - pointB.x;
-    const dy = pointA.y - pointB.y;
-    return Math.sqrt((dx * dx) + (dy * dy));
-  };
-
-  OrbitCameraInputTouch.prototype.calcMidPoint = function (pointA, pointB, result) {
-    result.set(pointB.x - pointA.x, pointB.y - pointA.y);
-    result.mulScalar(0.5);
-    result.x += pointA.x;
-    result.y += pointA.y;
-  };
-
-  OrbitCameraInputTouch.prototype.onTouchStartEndCancel = function (event) {
-    const touches = event.touches;
-    if (touches.length === 1) {
-      this.lastTouchPoint.set(touches[0].x, touches[0].y);
-    } else if (touches.length === 2) {
-      this.lastPinchDistance = this.getPinchDistance(touches[0], touches[1]);
-      this.calcMidPoint(touches[0], touches[1], this.lastPinchMidPoint);
-    }
-  };
-
-  OrbitCameraInputTouch.fromWorldPoint = new pc.Vec3();
-  OrbitCameraInputTouch.toWorldPoint = new pc.Vec3();
-  OrbitCameraInputTouch.worldDiff = new pc.Vec3();
-
-  OrbitCameraInputTouch.prototype.pan = function (midPoint) {
-    const fromWorldPoint = OrbitCameraInputTouch.fromWorldPoint;
-    const toWorldPoint = OrbitCameraInputTouch.toWorldPoint;
-    const worldDiff = OrbitCameraInputTouch.worldDiff;
-
-    const camera = this.entity.camera;
-    const distance = this.orbitCamera.distance;
-
-    camera.screenToWorld(midPoint.x, midPoint.y, distance, fromWorldPoint);
-    camera.screenToWorld(this.lastPinchMidPoint.x, this.lastPinchMidPoint.y, distance, toWorldPoint);
-
-    worldDiff.sub2(toWorldPoint, fromWorldPoint);
-
-    let proposedPivot = this.orbitCamera.pivotPoint.clone().add(worldDiff);
-    const minY = this.orbitCamera.minY;
-    let resultingY = this.orbitCamera.worldCameraYForPivot(proposedPivot);
-
-    if (resultingY >= minY - 1e-4) {
-      this.orbitCamera.pivotPoint.add(worldDiff);
-    } else {
-      worldDiff.y = 0;
-      proposedPivot = this.orbitCamera.pivotPoint.clone().add(worldDiff);
-      resultingY = this.orbitCamera.worldCameraYForPivot(proposedPivot);
-      if (resultingY >= minY - 1e-4) this.orbitCamera.pivotPoint.add(worldDiff);
-    }
-  };
-
-  OrbitCameraInputTouch.pinchMidPoint = new pc.Vec2();
-
-  OrbitCameraInputTouch.prototype.onTouchMove = function (event) {
-    const pinchMidPoint = OrbitCameraInputTouch.pinchMidPoint;
-    const touches = event.touches;
-
-    if (touches.length === 1) {
-      const touch = touches[0];
-      const sens = this.orbitSensitivity;
-
-      const deltaPitch = (touch.y - this.lastTouchPoint.y) * sens;
-      const deltaYaw = (touch.x - this.lastTouchPoint.x) * sens;
-
-      const currPitch = this.orbitCamera.pitch;
-      const currYaw = this.orbitCamera.yaw;
-      const currDist = this.orbitCamera.distance;
-      const currPivot = this.orbitCamera.pivotPoint.clone();
-
-      const camQuat = new pc.Quat().setFromEulerAngles(currPitch, currYaw, 0);
-      const forward = new pc.Vec3(); camQuat.transformVector(pc.Vec3.FORWARD, forward);
-      const preY = currPivot.y + (-forward.y) * currDist;
-
-      const proposedPitch = currPitch - deltaPitch;
-      const testQuat = new pc.Quat().setFromEulerAngles(proposedPitch, currYaw, 0);
-      const testForward = new pc.Vec3(); testQuat.transformVector(pc.Vec3.FORWARD, testForward);
-      const proposedY = currPivot.y + (-testForward.y) * currDist;
-
-      const minY = this.orbitCamera.minY;
-      const wouldGoBelow = proposedY < minY - 1e-4;
-
-      if (wouldGoBelow && (proposedY < preY)) {
-        this.orbitCamera.yaw = currYaw - deltaYaw;
-      } else {
-        this.orbitCamera.pitch = proposedPitch;
-        this.orbitCamera.yaw = currYaw - deltaYaw;
-      }
-
-      this.lastTouchPoint.set(touch.x, touch.y);
-    } else if (touches.length === 2) {
-      const currentPinchDistance = this.getPinchDistance(touches[0], touches[1]);
-      const diffInPinchDistance = currentPinchDistance - this.lastPinchDistance;
-      this.lastPinchDistance = currentPinchDistance;
-
-      this.orbitCamera.distance -= (diffInPinchDistance * this.distanceSensitivity * 0.1) * (this.orbitCamera.distance * 0.1);
-
-      this.calcMidPoint(touches[0], touches[1], pinchMidPoint);
-      this.pan(pinchMidPoint);
-      this.lastPinchMidPoint.copy(pinchMidPoint);
-    }
-  };
-
-  // ============== Orbit Camera Input Keyboard =================
-  const OrbitCameraInputKeyboard = pc.createScript(ORBIT_KEYS);
-
-  OrbitCameraInputKeyboard.attributes.add("forwardSpeed", { type: "number", default: 1.2, title: "Vertical Speed (rel. to distance)" });
-  OrbitCameraInputKeyboard.attributes.add("strafeSpeed", { type: "number", default: 1.2, title: "Left/Right Speed (rel. to distance)" });
-
-  // Fine-tuning
-  OrbitCameraInputKeyboard.attributes.add("orbitPitchSpeedDeg", { type: "number", default: 90, title: "Orbit Pitch Speed (deg/s) [Shift+Up/Down]" });
-  OrbitCameraInputKeyboard.attributes.add("orbitYawSpeedDeg", { type: "number", default: 120, title: "Orbit Yaw Speed (deg/s) [Shift+Left/Right]" });
-  OrbitCameraInputKeyboard.attributes.add("zoomKeySensitivity", { type: "number", default: 3.0, title: "Zoom Sensitivity (1/s) [Ctrl+Up/Down]" });
-
-  OrbitCameraInputKeyboard.prototype.initialize = function () {
-    this.orbitCamera = this.entity.script[ORBIT_BASE];
-    this.keyboard = this.app.keyboard || null;
-  };
-
-  OrbitCameraInputKeyboard.prototype.update = function (dt) {
-    if (!this.orbitCamera || !this.keyboard) return;
-
-    const up = this.keyboard.isPressed(pc.KEY_UP);
-    const dn = this.keyboard.isPressed(pc.KEY_DOWN);
-    const lt = this.keyboard.isPressed(pc.KEY_LEFT);
-    const rt = this.keyboard.isPressed(pc.KEY_RIGHT);
-
-    const shift = this.keyboard.isPressed(pc.KEY_SHIFT);
-    const ctrl = this.keyboard.isPressed(pc.KEY_CONTROL);
 
-    // ---- SHIFT: Orbit (pitch / yaw) ----
-    if (shift && (up || dn || lt || rt)) {
-      // Yaw: Shift+Right => orbit à droite
-      const yawDir = (rt ? 1 : 0) - (lt ? 1 : 0);
-      if (yawDir !== 0) {
-        const dYaw = yawDir * this.attributes.orbitYawSpeedDeg * dt;
-        this.orbitCamera.yaw = this.orbitCamera.yaw + dYaw;
+    // --- Caméra + scripts d’input (disponibles car orbit chargé globalement) ---
+    cameraEntity = new pc.Entity("camera");
+    cameraEntity.addComponent("camera", {
+      clearColor: new pc.Color(color_bg),
+      nearClip: 0.001,
+      farClip: 100
+    });
+    cameraEntity.setPosition(chosenCameraX, chosenCameraY, chosenCameraZ);
+    cameraEntity.lookAt(modelEntity.getPosition());
+    cameraEntity.addComponent("script");
+
+    cameraEntity.script.create("orbitCamera", {
+      attributes: {
+        focusEntity: modelEntity,
+        inertiaFactor: 0.2,
+        distanceMax: maxZoom,
+        distanceMin: minZoom,
+        pitchAngleMax: maxAngle,
+        pitchAngleMin: minAngle,
+        yawAngleMax: maxAzimuth,
+        yawAngleMin: minAzimuth,
+        minY: minY,
+        frameOnStart: false
       }
-
-      // Pitch: Shift+Up => orbit up
-      const pitchDir = (up ? 1 : 0) - (dn ? 1 : 0);
-      if (pitchDir !== 0) {
-        const dPitch = pitchDir * this.attributes.orbitPitchSpeedDeg * dt;
-
-        const currPitch = this.orbitCamera.pitch;
-        const currYaw = this.orbitCamera.yaw;
-        const currDist = this.orbitCamera.distance;
-        const currPivot = this.orbitCamera.pivotPoint.clone();
-
-        const camQuat = new pc.Quat().setFromEulerAngles(currPitch, currYaw, 0);
-        const forward = new pc.Vec3(); camQuat.transformVector(pc.Vec3.FORWARD, forward);
-        const preY = currPivot.y + (-forward.y) * currDist;
-
-        const testPitch = currPitch + dPitch;
-        const testQuat = new pc.Quat().setFromEulerAngles(testPitch, currYaw, 0);
-        const testForward = new pc.Vec3(); testQuat.transformVector(pc.Vec3.FORWARD, testForward);
-        const proposedY = currPivot.y + (-testForward.y) * currDist;
-
-        const minY = this.orbitCamera.minY;
-        const wouldGoBelow = proposedY < minY - 1e-4;
-
-        if (!(wouldGoBelow && (proposedY < preY))) {
-          this.orbitCamera.pitch = testPitch;
-        }
+    });
+    cameraEntity.script.create("orbitCameraInputMouse");
+    cameraEntity.script.create("orbitCameraInputTouch");
+    cameraEntity.script.create("orbitCameraInputKeyboard", {
+      attributes: {
+        forwardSpeed: 1.2,
+        strafeSpeed: 1.2
       }
-      return;
-    }
-
-    // ---- CTRL: Zoom (up/down) ----
-    if (ctrl && (up || dn)) {
-      const zoomSign = (up ? 1 : 0) - (dn ? 1 : 0);
-      if (zoomSign !== 0) {
-        if (this.entity.camera.projection === pc.PROJECTION_PERSPECTIVE) {
-          const dz = zoomSign * this.attributes.zoomKeySensitivity * (this.orbitCamera.distance * 0.5) * dt;
-          this.orbitCamera.distance -= dz;
-        } else {
-          const doh = zoomSign * this.attributes.zoomKeySensitivity * (this.orbitCamera.orthoHeight * 0.5) * dt;
-          this.orbitCamera.orthoHeight -= doh;
-        }
+    });
+    app.root.addChild(cameraEntity);
+
+    app.resizeCanvas(viewerContainer.clientWidth, viewerContainer.clientHeight);
+    app.once("update", () => resetViewerCamera());
+
+    // --- Tooltips (optionnels) ---
+    try {
+      if (config.tooltips_url) {
+        import("./tooltips.js")
+          .then((tooltipsModule) => {
+            tooltipsModule.initializeTooltips({
+              app,
+              cameraEntity,
+              modelEntity,
+              tooltipsUrl: config.tooltips_url,
+              defaultVisible: !!config.showTooltipsDefault,
+              moveDuration: config.tooltipMoveDuration || 0.6
+            });
+          })
+          .catch(() => {
+            /* optional */
+          });
       }
-      return;
-    }
-
-    // ---- Sans modif: translation (vertical + strafe) ----
-    const moveVert = (up ? 1 : 0) - (dn ? 1 : 0);
-    const moveRight = (rt ? 1 : 0) - (lt ? 1 : 0);
-
-    if (moveVert === 0 && moveRight === 0) return;
-
-    const dist = Math.max(0.1, this.orbitCamera.distance);
-    const speedV = this.attributes.forwardSpeed * dist;
-    const speedR = this.attributes.strafeSpeed * dist;
-
-    // Vertical pur Y (respect minY)
-    let dy = moveVert * speedV * dt;
-    if (dy !== 0) {
-      const currentCamY = this.orbitCamera.worldCameraYForPivot(this.orbitCamera.pivotPoint);
-      const minY = this.orbitCamera.minY;
-      const proposedCamY = currentCamY + dy;
-      if (proposedCamY < minY) dy = Math.max(dy, minY - currentCamY);
-      if (dy !== 0) this.orbitCamera._pivotPoint.y += dy;
+    } catch (e) {
+      /* optional */
     }
 
-    // Strafe en XZ
-    const right = this.entity.right.clone(); right.y = 0;
-    if (right.lengthSq() > 1e-8) right.normalize();
-    const dx = moveRight * speedR * dt;
-    if (dx !== 0) this.orbitCamera._pivotPoint.add(right.mulScalar(dx));
-  };
+    viewerInitialized = true;
+  });
 }
 
-/* ======================= INITIALISATION VIEWER =========================== */
-export async function initializeViewer(config, instanceId) {
-  // 1 import = 1 instance; garde-fou en plus
-  if (viewerInitialized) return;
+/* -------------------------------------------
+   Reset caméra (API)
+-------------------------------------------- */
 
-  const isIOS = /iPad|iPhone|iPod/.test(navigator.userAgent);
-  const isMobile = isIOS || /Android/i.test(navigator.userAgent);
-
-  // --- Config ---
-  sogsUrl = config.sogs_json_url;
-  glbUrl = (config.glb_url !== undefined)
-    ? config.glb_url
-    : "https://huggingface.co/datasets/MikaFil/viewer_gs/resolve/main/ressources/espace_expo/sol_blanc_2.glb";
-  presentoirUrl = (config.presentoir_url !== undefined)
-    ? config.presentoir_url
-    : "https://huggingface.co/datasets/MikaFil/viewer_gs/resolve/main/ressources/espace_expo/sol_blanc_2.glb";
-
-  minZoom = parseFloat(config.minZoom || "1");
-  maxZoom = parseFloat(config.maxZoom || "20");
-  minAngle = parseFloat(config.minAngle || "-45");
-  maxAngle = parseFloat(config.maxAngle || "90");
-  minAzimuth = (config.minAzimuth !== undefined) ? parseFloat(config.minAzimuth) : -360;
-  maxAzimuth = (config.maxAzimuth !== undefined) ? parseFloat(config.maxAzimuth) : 360;
-  minPivotY = parseFloat(config.minPivotY || "0");
-  minY = (config.minY !== undefined) ? parseFloat(config.minY) : 0;
-
-  modelX = (config.modelX !== undefined) ? parseFloat(config.modelX) : 0;
-  modelY = (config.modelY !== undefined) ? parseFloat(config.modelY) : 0;
-  modelZ = (config.modelZ !== undefined) ? parseFloat(config.modelZ) : 0;
-  modelScale = (config.modelScale !== undefined) ? parseFloat(config.modelScale) : 1;
-  modelRotationX = (config.modelRotationX !== undefined) ? parseFloat(config.modelRotationX) : 0;
-  modelRotationY = (config.modelRotationY !== undefined) ? parseFloat(config.modelRotationY) : 0;
-  modelRotationZ = (config.modelRotationZ !== undefined) ? parseFloat(config.modelRotationZ) : 0;
-
-  presentoirScaleX = (config.presentoirScaleX !== undefined) ? parseFloat(config.presentoirScaleX) : 0;
-  presentoirScaleY = (config.presentoirScaleY !== undefined) ? parseFloat(config.presentoirScaleY) : 0;
-  presentoirScaleZ = (config.presentoirScaleZ !== undefined) ? parseFloat(config.presentoirScaleZ) : 0;
-
-  const cameraX = (config.camera
+export function resetViewerCamera() {
+  try {
+    if (!cameraEntity || !modelEntity || !app) return;
+    const orbitCam = cameraEntity.script.orbitCamera;
+    if (!orbitCam) return;
+
+    const modelPos = modelEntity.getPosition();
+    const tempEnt = new pc.Entity();
+    tempEnt.setPosition(chosenCameraX, chosenCameraY, chosenCameraZ);
+    tempEnt.lookAt(modelPos);
+
+    const dist = new pc.Vec3()
+      .sub2(new pc.Vec3(chosenCameraX, chosenCameraY, chosenCameraZ), modelPos)
+      .length();
+
+    cameraEntity.setPosition(chosenCameraX, chosenCameraY, chosenCameraZ);
+    cameraEntity.lookAt(modelPos);
+
+    orbitCam.pivotPoint = modelPos.clone();
+    orbitCam._targetDistance = dist;
+    orbitCam._distance = dist;
+
+    const rot = tempEnt.getRotation();
+    const fwd = new pc.Vec3();
+    rot.transformVector(pc.Vec3.FORWARD, fwd);
+
+    const yaw = Math.atan2(-fwd.x, -fwd.z) * pc.math.RAD_TO_DEG;
+    const yawQuat = new pc.Quat().setFromEulerAngles(0, -yaw, 0);
+    const rotNoYaw = new pc.Quat().mul2(yawQuat, rot);
+    const fNoYaw = new pc.Vec3();
+    rotNoYaw.transformVector(pc.Vec3.FORWARD, fNoYaw);
+    const pitch = Math.atan2(fNoYaw.y, -fNoYaw.z) * pc.math.RAD_TO_DEG;
+
+    orbitCam._targetYaw = yaw;
+    orbitCam._yaw = yaw;
+    orbitCam._targetPitch = pitch;
+    orbitCam._pitch = pitch;
+    if (orbitCam._updatePosition) orbitCam._updatePosition();
+
+    tempEnt.destroy();
+  } catch (e) {
+    console.error("[viewer.js] resetViewerCamera error:", e);
+  }
+}