Merge branch 'develop' into fix/repair-game

Reviewed-on: #12

docs/technical/map-lod.md

@@ -25,7 +25,7 @@ Current behavior:
 | -------- | ------------------: | --- | ------------------------------------- |
 | `low`    |                 10m | On  | Always use `*-LOD` models             |
 | `medium` |                 20m | On  | Always use `*-LOD` models             |
-| `high`   | Current default 50m | Off | Regular model up to 10m, then `*-LOD` |
+| `high`   |                 35m | Off | Regular model up to 10m, then `*-LOD` |
 | `ultra`  |                 50m | Off | Regular model up to 20m, then `*-LOD` |
 
 The unload distance stays slightly larger than the load distance to avoid rapid mount/unmount flickering when the player stands near a boundary.

docs/technical/map-performance.md

@@ -158,9 +158,11 @@ Current runtime values:
 
 ```txt
 chunkSize: 35
-loadRadius: 45
-unloadRadius: 45
-updateInterval: 350ms
+low load/unload radius: 10m / 18m
+medium load/unload radius: 20m / 30m
+high load/unload radius: 35m / 45m
+ultra load/unload radius: 50m / 65m
+updateInterval: 250ms
 fog near: 30
 fog far: 45
 ```

docs/technical/scene-runtime.md

@@ -74,22 +74,32 @@ It tracks:
 - `gameMapLoaded`: map data and visible map nodes settled
 - `gameStageLoaded`: Rapier gameplay stage mounted
 - `showGameStage`: true when the map is ready enough to mount gameplay content
-- `shadowsReady`: renderer, shadow lights, and scene matrices have been forced once after the scene is mounted
-- `gameplayReady`: true when map, stage, octree, and the shadow warmup are all ready
+- `gameplayReady`: true when map, stage, and octree are all ready
 
-The base game-scene readiness condition before the shadow warmup is:
+The game-scene readiness condition is:
 
 ```ts
 showGameStage && gameStageLoaded && octree !== null;
 ```
 
-After that condition is met, `SceneShadowWarmup` runs one final loading step:
+Shadows are configured once when `Lighting` mounts (renderer `shadowMap.enabled`, sun
+`shadow.autoUpdate = true`, bias and frustum from `SHADOW_CONFIG` in
+`src/data/world/lightingConfig.ts`). The shadow map then refreshes every frame and
+follows the player camera through the sun's `target`. The earlier `SceneShadowWarmup`
+step has been removed — the visible loading overlay no longer waits for a forced
+shadow refresh because `autoUpdate` covers steady-state rendering.
 
-```txt
-Activation des ombres -> Ombres prêtes -> Gameplay prêt
-```
+### Avoiding global scene remounts
 
-This keeps the loading overlay visible until the renderer shadow map, shadow-casting light, and mounted scene graph have all been explicitly refreshed.
+Heavy stage components (`GameStageContent`, `Player`, dialogues) load assets via
+`useGLTF`/`useTexture` without preload (e.g. `EbikeSpeedometer` calls `useTexture`
+when the bike mounts). To prevent any late suspension from bubbling up to the
+root `<Suspense>` boundary in `src/pages/page.tsx` and unmounting the entire
+world (which would trigger a redundant octree rebuild and shadow re-config), the
+game stage block and the spawn-player block are wrapped in their own
+`<Suspense fallback={null}>` boundaries inside `src/world/World.tsx`. Any new
+sibling that suspends late should be added inside one of these boundaries or get
+its own.
 
 The debug physics scene is ready when:
 

docs/technical/three-debugging.md

@@ -20,3 +20,63 @@ If DevTools still opens a bundled file, stop the dev server, clear Vite's cached
 rm -rf node_modules/.vite
 npm run dev:three-debug
 ```
+
+## Visual debug toggles
+
+The `Debug` folder of the runtime debug GUI exposes inspection toggles backed by
+`src/managers/stores/useDebugVisualsStore.ts`:
+
+- **Show Player Model** — renders the main character GLTF in front of the
+  current camera (`src/components/debug/DebugPlayerModel.tsx`). The model is
+  positioned in camera-local space so it stays visible regardless of pitch.
+- **Show Octree** — overlays the collision octree as colored line segments,
+  one wireframe per spatial cell (`src/components/debug/DebugOctreeVisualization.tsx`).
+  Cells are colored by depth. Use it to inspect collision precision around
+  doorways or passages.
+- **Octree Max Depth** — caps how deep the octree visualization recurses
+  (default 6). Increase to see leaf-level subdivisions; decrease to keep the
+  scene readable when the tree is large.
+
+The octree visualization reads the live `Octree` instance from `World`. The
+mesh uses `depthTest: false` and a high `renderOrder`, so cells stay visible
+through opaque geometry.
+
+## Shadow rendering intermittence
+
+Shadows occasionally failed to render on initial load and could disappear
+mid-session even though the `Lighting` configuration ran to completion. The
+fix has two layers:
+
+### Per-frame refresh (steady state)
+
+The sun follows the camera, so its world matrix is dirty every frame. With
+`shadow.autoUpdate` alone, three.js can skip the shadow map re-render on a
+frame where the matrix update has happened but the renderer's internal dirty
+tracking does not pick it up. To prevent that, `Lighting.useFrame` sets
+`sun.shadow.needsUpdate = true` after the per-frame matrix updates. Shadow
+config is centralized in `src/data/world/lightingConfig.ts` (`bias=0`,
+`normalBias=0`, `cameraSize=95`).
+
+### Mount-time shadow map reallocation (`useShadowMapWarmup`)
+
+The merged static map and other GLTFs mount imperatively after `Lighting`,
+so the shadow render target ends up linked to a renderer state that pre-dates
+the final scene. Materials compiled at that point bake a "no shadow map"
+permutation into their shader program and silently fail to render shadows
+until a WebGL context-restore cycle (the kind triggered by Chrome DevTools
+in `?debug` runs) reallocates everything.
+
+`src/hooks/three/useShadowMapWarmup.ts` replays that cycle programmatically
+without the cost of a full context loss. It runs a `useFrame` watchdog that
+samples the scene mesh count every 6 frames; once the count has been stable
+for ~1 s (or after a 5 s safety cap), it:
+
+1. Disposes the directional light shadow map and nulls it. three.js
+   reallocates the render target on the next render at the configured
+   `mapSize`.
+2. Marks every material's `needsUpdate = true`, forcing a shader recompile
+   that rebinds every program to the freshly created shadow sampler.
+3. Forces a single shadow pass and invalidates the renderer.
+
+The watchdog runs once per mount and adds a single traversal every 6 frames
+during the warmup window, after which it self-terminates.

src/App.tsx

@@ -1,7 +1,15 @@
 import { RouterProvider } from "@tanstack/react-router";
+import { SiteMobileBlocker } from "@/components/site/SiteMobileBlocker";
+import { useIsMobile } from "@/hooks/ui/useIsMobile";
 import { router } from "@/router";
 
 function App(): React.JSX.Element {
+  const isMobile = useIsMobile();
+
+  if (isMobile) {
+    return <SiteMobileBlocker />;
+  }
+
   return <RouterProvider router={router} />;
 }
 

src/components/debug/DebugOctreeVisualization.tsx

@@ -0,0 +1,173 @@
+import { useMemo } from "react";
+import { Box3, BufferAttribute, BufferGeometry } from "three";
+import type { Octree } from "three-stdlib";
+import {
+  LA_FABRIK_CENTER,
+  isInsideLaFabrikFootprint,
+} from "@/data/world/laFabrikConfig";
+import { useDebugVisualsStore } from "@/managers/stores/useDebugVisualsStore";
+
+interface DebugOctreeVisualizationProps {
+  octree: Octree | null;
+}
+
+interface OctreeNodeBox {
+  box: Box3;
+  depth: number;
+  triangleCount: number;
+  isLeaf: boolean;
+}
+
+interface CollectOptions {
+  minDepth: number;
+  maxDepth: number;
+  leavesOnly: boolean;
+  fabrikOnly: boolean;
+}
+
+const FABRIK_FILTER_PADDING = 1.5;
+const FABRIK_FILTER_VERTICAL = 8;
+
+const BOX_VERTEX_INDEX_PAIRS: ReadonlyArray<readonly [number, number]> = [
+  [0, 1],
+  [1, 3],
+  [3, 2],
+  [2, 0],
+  [4, 5],
+  [5, 7],
+  [7, 6],
+  [6, 4],
+  [0, 4],
+  [1, 5],
+  [2, 6],
+  [3, 7],
+];
+
+function boxIntersectsFabrik(box: Box3): boolean {
+  if (box.max.y < LA_FABRIK_CENTER[1] - FABRIK_FILTER_VERTICAL) return false;
+  if (box.min.y > LA_FABRIK_CENTER[1] + FABRIK_FILTER_VERTICAL) return false;
+
+  // Sample box corners + center on XZ plane against the rotated fabrik footprint.
+  const samples: ReadonlyArray<readonly [number, number]> = [
+    [box.min.x, box.min.z],
+    [box.min.x, box.max.z],
+    [box.max.x, box.min.z],
+    [box.max.x, box.max.z],
+    [(box.min.x + box.max.x) * 0.5, (box.min.z + box.max.z) * 0.5],
+  ];
+  for (const [x, z] of samples) {
+    if (isInsideLaFabrikFootprint(x, z, FABRIK_FILTER_PADDING)) return true;
+  }
+  return false;
+}
+
+function collectOctreeBoxes(
+  node: Octree,
+  options: CollectOptions,
+  depth = 0,
+  acc: OctreeNodeBox[] = [],
+): OctreeNodeBox[] {
+  if (depth > options.maxDepth) return acc;
+
+  const isLeaf = node.subTrees.length === 0;
+  const passesDepth = depth >= options.minDepth;
+  const passesLeafFilter = !options.leavesOnly || isLeaf;
+  const hasTriangles = node.triangles.length > 0;
+  const passesFabrikFilter =
+    !options.fabrikOnly || boxIntersectsFabrik(node.box);
+
+  if (passesDepth && passesLeafFilter && hasTriangles && passesFabrikFilter) {
+    acc.push({
+      box: node.box,
+      depth,
+      triangleCount: node.triangles.length,
+      isLeaf,
+    });
+  }
+
+  for (const sub of node.subTrees) {
+    collectOctreeBoxes(sub, options, depth + 1, acc);
+  }
+
+  return acc;
+}
+
+function buildOctreeLineGeometry(
+  nodes: readonly OctreeNodeBox[],
+): BufferGeometry {
+  const positionsBuffer = new Float32Array(
+    nodes.length * BOX_VERTEX_INDEX_PAIRS.length * 2 * 3,
+  );
+
+  const corners: [number, number, number][] = Array.from({ length: 8 }, () => [
+    0, 0, 0,
+  ]);
+
+  let positionsOffset = 0;
+
+  for (const node of nodes) {
+    const { min, max } = node.box;
+
+    corners[0] = [min.x, min.y, min.z];
+    corners[1] = [max.x, min.y, min.z];
+    corners[2] = [min.x, max.y, min.z];
+    corners[3] = [max.x, max.y, min.z];
+    corners[4] = [min.x, min.y, max.z];
+    corners[5] = [max.x, min.y, max.z];
+    corners[6] = [min.x, max.y, max.z];
+    corners[7] = [max.x, max.y, max.z];
+
+    for (const [a, b] of BOX_VERTEX_INDEX_PAIRS) {
+      const ca = corners[a]!;
+      const cb = corners[b]!;
+      positionsBuffer[positionsOffset++] = ca[0];
+      positionsBuffer[positionsOffset++] = ca[1];
+      positionsBuffer[positionsOffset++] = ca[2];
+      positionsBuffer[positionsOffset++] = cb[0];
+      positionsBuffer[positionsOffset++] = cb[1];
+      positionsBuffer[positionsOffset++] = cb[2];
+    }
+  }
+
+  const geometry = new BufferGeometry();
+  geometry.setAttribute("position", new BufferAttribute(positionsBuffer, 3));
+  return geometry;
+}
+
+export function DebugOctreeVisualization({
+  octree,
+}: DebugOctreeVisualizationProps): React.JSX.Element | null {
+  const showOctree = useDebugVisualsStore((state) => state.showOctree);
+  const minDepth = useDebugVisualsStore((state) => state.octreeMinDepth);
+  const maxDepth = useDebugVisualsStore((state) => state.octreeMaxDepth);
+  const leavesOnly = useDebugVisualsStore((state) => state.octreeLeavesOnly);
+  const opacity = useDebugVisualsStore((state) => state.octreeOpacity);
+  const fabrikOnly = useDebugVisualsStore((state) => state.octreeFabrikOnly);
+
+  const geometry = useMemo(() => {
+    if (!octree || !showOctree) return null;
+    const boxes = collectOctreeBoxes(octree, {
+      minDepth,
+      maxDepth,
+      leavesOnly,
+      fabrikOnly,
+    });
+    if (boxes.length === 0) return null;
+    return buildOctreeLineGeometry(boxes);
+  }, [fabrikOnly, leavesOnly, maxDepth, minDepth, octree, showOctree]);
+
+  if (!geometry) return null;
+
+  return (
+    <lineSegments frustumCulled={false} renderOrder={999}>
+      <primitive object={geometry} attach="geometry" />
+      <lineBasicMaterial
+        color="#22d3ee"
+        depthTest={false}
+        depthWrite={false}
+        transparent
+        opacity={opacity}
+      />
+    </lineSegments>
+  );
+}

src/components/debug/DebugPlayerModel.tsx

@@ -0,0 +1,58 @@
+import { useEffect, useMemo, useRef } from "react";
+import * as THREE from "three";
+import { useFrame } from "@react-three/fiber";
+import { useGLTF } from "@react-three/drei";
+
+const MODEL_PATH = "/models/persoprincipal/model.gltf";
+// Offset expressed in the camera's local space:
+// - x: horizontal (0 = centered)
+// - y: vertical relative to camera eye (negative = below)
+// - z: forward (negative = in front of the camera)
+const LOCAL_OFFSET = new THREE.Vector3(0, -1, -2.5);
+
+const eulerHelper = new THREE.Euler();
+
+export function DebugPlayerModel(): React.JSX.Element {
+  const groupRef = useRef<THREE.Group>(null);
+  const { scene } = useGLTF(MODEL_PATH);
+
+  const model = useMemo(() => {
+    const cloned = scene.clone(true);
+    cloned.traverse((child) => {
+      if (child instanceof THREE.Mesh) {
+        child.castShadow = true;
+        child.receiveShadow = true;
+        child.frustumCulled = false;
+      }
+    });
+    return cloned;
+  }, [scene]);
+
+  useEffect(
+    () => () => {
+      model.clear();
+    },
+    [model],
+  );
+
+  useFrame(({ camera }) => {
+    const group = groupRef.current;
+    if (!group) return;
+
+    // Place the model in front of the camera using its local space so it stays
+    // visible regardless of the camera pitch (top-down ebike view, etc.).
+    group.position.copy(LOCAL_OFFSET).applyMatrix4(camera.matrixWorld);
+
+    // Keep the model upright and aligned with the camera yaw only.
+    eulerHelper.setFromQuaternion(camera.quaternion, "YXZ");
+    group.rotation.set(0, eulerHelper.y, 0);
+  });
+
+  return (
+    <group ref={groupRef} frustumCulled={false}>
+      <primitive object={model} />
+    </group>
+  );
+}
+
+useGLTF.preload(MODEL_PATH);

src/components/ebike/Ebike.tsx

@@ -2,17 +2,22 @@ import { useEffect, useRef, useState, useMemo, useCallback } from "react";
 import * as THREE from "three";
 import { useFrame, useThree } from "@react-three/fiber";
 import { EbikeGPSMap } from "@/components/ebike/EbikeGPSMap";
+import { EbikeSpeedometer } from "@/components/ebike/EbikeSpeedometer";
 import { InteractableObject } from "@/components/three/interaction/InteractableObject";
 import { useLoggedGLTF } from "@/hooks/three/useLoggedGLTF";
 import { useClonedObject } from "@/hooks/three/useClonedObject";
 import { useDebugFolder } from "@/hooks/debug/useDebugFolder";
 import { useEbikeSounds } from "@/hooks/ebike/useEbikeSounds";
+import {
+  getObjectBottomOffset,
+  useTerrainHeightSampler,
+} from "@/hooks/three/useTerrainHeight";
 import { animateCameraTransformTransition } from "@/world/GameCinematics";
 import { useGameStore } from "@/managers/stores/useGameStore";
-import { PLAYER_EYE_HEIGHT } from "@/data/player/playerConfig";
 import {
   EBIKE_CAMERA_TRANSFORM,
   EBIKE_DROP_PLAYER_TRANSFORM,
+  EBIKE_WORLD_SCALE,
   EBIKE_WORLD_ROTATION_Y,
 } from "@/data/ebike/ebikeConfig";
 import type { Vector3Tuple } from "@/types/three/three";
@@ -31,12 +36,29 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
     position: position,
   });
   const model = useClonedObject(scene);
+  const terrainHeight = useTerrainHeightSampler();
+  const parkedPosition = useMemo<Vector3Tuple>(() => {
+    const [x, y, z] = position;
+    const height = terrainHeight.getHeight(x, z) ?? y;
+    const bottomOffset = getObjectBottomOffset(model, [
+      EBIKE_WORLD_SCALE,
+      EBIKE_WORLD_SCALE,
+      EBIKE_WORLD_SCALE,
+    ]);
+
+    return [x, height + bottomOffset, z];
+  }, [model, position, terrainHeight]);
   const movementMode = useGameStore((state) => state.player.movementMode);
   const mainState = useGameStore((state) => state.mainState);
   const ebikeStep = useGameStore((state) => state.ebike.currentStep);
   const setMissionStep = useGameStore((state) => state.setMissionStep);
   const camera = useThree((state) => state.camera);
   const updateEbikeSounds = useEbikeSounds();
+  const repairGameOwnsEbikeModel =
+    mainState === "ebike" &&
+    ebikeStep !== "locked" &&
+    ebikeStep !== "waiting" &&
+    ebikeStep !== "inspected";
 
   // Map active mainState to target repair zone coordinate
   const destPos = useMemo(() => {
@@ -58,19 +80,19 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
     y: number;
     z: number;
   }>({
-    x: position[0],
-    y: position[1],
-    z: position[2],
+    x: parkedPosition[0],
+    y: parkedPosition[1],
+    z: parkedPosition[2],
   });
   const lastGpsUpdatePos = useRef<THREE.Vector3>(
-    new THREE.Vector3(...position),
+    new THREE.Vector3(...parkedPosition),
   );
 
   // Use ref for internal state, and state for debug visualization (to avoid ref access during render)
   const restingPositionRef = useRef<Vector3Tuple>([
-    position[0],
-    position[1] - PLAYER_EYE_HEIGHT,
-    position[2],
+    parkedPosition[0],
+    parkedPosition[1],
+    parkedPosition[2],
   ]);
   const restingRotationRef = useRef<number>(EBIKE_WORLD_ROTATION_Y);
   const forkRef = useRef<THREE.Object3D | null>(null);
@@ -79,11 +101,27 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
   const [showCameraPoints, setShowCameraPoints] = useState(true);
   const [debugRestingPosition, setDebugRestingPosition] =
     useState<Vector3Tuple>([
-      position[0],
-      position[1] - PLAYER_EYE_HEIGHT,
-      position[2],
+      parkedPosition[0],
+      parkedPosition[1],
+      parkedPosition[2],
     ]);
 
+  useEffect(() => {
+    if (movementMode === "ebike") return;
+
+    restingPositionRef.current = parkedPosition;
+    restingRotationRef.current = EBIKE_WORLD_ROTATION_Y;
+    lastGpsUpdatePos.current.set(...parkedPosition);
+
+    if (groupRef.current) {
+      groupRef.current.position.set(...parkedPosition);
+      groupRef.current.rotation.set(0, EBIKE_WORLD_ROTATION_Y, 0);
+    }
+
+    window.ebikeParkedPosition = parkedPosition;
+    window.ebikeParkedRotation = EBIKE_WORLD_ROTATION_Y;
+  }, [movementMode, parkedPosition]);
+
   useEffect(() => {
     if (model) {
       const fork = model.getObjectByName("fourche");
@@ -93,6 +131,17 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
     }
   }, [model]);
 
+  useEffect(() => {
+    if (!model) return;
+
+    model.traverse((child) => {
+      if (child instanceof THREE.Mesh) {
+        child.castShadow = true;
+        child.receiveShadow = true;
+      }
+    });
+  }, [model]);
+
   useEffect(() => {
     window.ebikeVisualGroup = groupRef;
     window.ebikeParkedPosition = restingPositionRef.current;
@@ -169,16 +218,30 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
     debugRestingPosition[1] + EBIKE_DROP_PLAYER_TRANSFORM.position[1],
     debugRestingPosition[2] + EBIKE_DROP_PLAYER_TRANSFORM.position[2],
   ];
+  const interactionLabel =
+    mainState === "ebike"
+      ? "Réparer l'e-bike"
+      : movementMode === "walk"
+        ? "Monter sur le bike"
+        : "Descendre du bike";
 
   const handleInteract = useCallback((): void => {
     if (window.ebikeBreakdownActive === true) return;
 
     if (movementMode === "walk") {
-      if (mainState === "ebike" && ebikeStep === "waiting") {
+      if (
+        mainState === "ebike" &&
+        (ebikeStep === "locked" || ebikeStep === "waiting")
+      ) {
         setMissionStep("ebike", "inspected");
         return;
       }
 
+      if (mainState === "ebike" && ebikeStep === "inspected") {
+        setMissionStep("ebike", "fragmented");
+        return;
+      }
+
       const cameraOffset = new THREE.Vector3(
         ...EBIKE_CAMERA_TRANSFORM.position,
       );
@@ -258,51 +321,51 @@ export function Ebike({ position }: EbikeProps): React.JSX.Element {
 
   return (
     <>
-      <group
-        ref={groupRef}
-        position={position}
-        rotation={[0, EBIKE_WORLD_ROTATION_Y, 0]}
-      >
-        <primitive object={model} />
-        <InteractableObject
-          kind="trigger"
-          label={
-            mainState === "ebike" && ebikeStep === "waiting"
-              ? "Inspecter l'e-bike"
-              : movementMode === "walk"
-                ? "Monter sur le bike"
-                : "Descendre du bike"
-          }
-          position={position}
-          radius={15}
-          onPress={handleInteract}
+      {!repairGameOwnsEbikeModel ? (
+        <group
+          ref={groupRef}
+          position={parkedPosition}
+          rotation={[0, EBIKE_WORLD_ROTATION_Y, 0]}
+          scale={EBIKE_WORLD_SCALE}
         >
-          <mesh>
-            <boxGeometry args={[10, 13, 2]} />
-            <meshBasicMaterial colorWrite={false} depthWrite={false} />
-          </mesh>
-        </InteractableObject>
+          <primitive object={model} />
+          <InteractableObject
+            kind="trigger"
+            label={interactionLabel}
+            position={parkedPosition}
+            radius={5}
+            onPress={handleInteract}
+          >
+            <mesh>
+              <boxGeometry args={[8, 9, 2]} />
+              <meshBasicMaterial colorWrite={false} depthWrite={false} />
+            </mesh>
+          </InteractableObject>
 
-        {/* Dynamic 3D GPS Dashboard Screen */}
-        <group position={[0, 7, 0]} rotation={[0, 90, 0]}>
-          <EbikeGPSMap
-            width={0.8}
-            height={0.8}
-            startPos={gpsStartPos}
-            destPos={destPos}
-            mapImageUrl="/assets/world/gps/map_background.png"
-            worldBounds={{
-              minX: -166,
-              maxX: 163,
-              minZ: -142,
-              maxZ: 138,
-            }}
-            zoom={4}
-          />
+          {/* Dynamic 3D GPS Dashboard Screen */}
+          <group position={[0, 7, 0]} rotation={[0, 90, 0]}>
+            <EbikeGPSMap
+              width={0.8}
+              height={0.8}
+              startPos={gpsStartPos}
+              destPos={destPos}
+              mapImageUrl="/assets/world/gps/map_background.png"
+              worldBounds={{
+                minX: -166,
+                maxX: 163,
+                minZ: -142,
+                maxZ: 138,
+              }}
+              zoom={4}
+            />
+          </group>
+          <group position={[0, 6.35, 0]} rotation={[0, 90, 0]}>
+            <EbikeSpeedometer />
+          </group>
         </group>
-      </group>
+      ) : null}
 
-      {showCameraPoints && (
+      {showCameraPoints && !repairGameOwnsEbikeModel && (
         <>
           <mesh position={camPointPos}>
             <sphereGeometry args={[0.3, 16, 16]} />

src/components/ebike/EbikeGPSMap.tsx

@@ -89,6 +89,8 @@ export interface EbikeGPSMapProps {
    * Default: 1
    */
   zoom?: number;
+
+  renderOrder?: number;
 }
 
 /**
@@ -107,6 +109,7 @@ export const EbikeGPSMap: React.FC<EbikeGPSMapProps> = ({
   position = [0, 0, 0],
   canvasSize = 1024,
   zoom = 1,
+  renderOrder = 10_000,
 }) => {
   const [waypoints, setWaypoints] = useState<Waypoint[]>([]);
   const [mapImage, setMapImage] = useState<
@@ -506,12 +509,13 @@ export const EbikeGPSMap: React.FC<EbikeGPSMapProps> = ({
   }, [draw]);
 
   return (
-    <mesh castShadow receiveShadow position={position}>
+    <mesh position={position} renderOrder={renderOrder}>
       <planeGeometry args={[width, height]} />
       <meshBasicMaterial
         toneMapped={false}
         transparent={true}
         opacity={1}
+        depthTest={false}
         depthWrite={false}
         side={THREE.DoubleSide}
       >

src/components/ebike/EbikeSpeedometer.tsx

@@ -0,0 +1,90 @@
+import { useEffect, useRef } from "react";
+import { useFrame } from "@react-three/fiber";
+import { useTexture } from "@react-three/drei";
+import * as THREE from "three";
+
+const SPEEDOMETER_DIAL_TEXTURE = "/assets/world/gps/cadran.png";
+const SPEEDOMETER_NEEDLE_TEXTURE = "/assets/world/gps/fleche.png";
+const SPEEDOMETER_MIN_ANGLE = Math.PI / 2;
+const SPEEDOMETER_MAX_ANGLE = -Math.PI / 2;
+const SPEEDOMETER_RENDER_ORDER = 10_000;
+
+interface EbikeSpeedometerProps {
+  width?: number;
+  height?: number;
+}
+
+export function EbikeSpeedometer({
+  width = 0.9,
+  height = 0.5,
+}: EbikeSpeedometerProps): React.JSX.Element {
+  const needleGroupRef = useRef<THREE.Group>(null);
+  const speedFactorRef = useRef(0);
+  const [dialTexture, needleTexture] = useTexture([
+    SPEEDOMETER_DIAL_TEXTURE,
+    SPEEDOMETER_NEEDLE_TEXTURE,
+  ]) as [THREE.Texture, THREE.Texture];
+  const needleWidth = width * 0.68;
+  const needleHeight = needleWidth / 2;
+
+  useEffect(() => {
+    [dialTexture, needleTexture].forEach((texture) => {
+      texture.colorSpace = THREE.SRGBColorSpace;
+      texture.needsUpdate = true;
+    });
+  }, [dialTexture, needleTexture]);
+
+  useFrame((_, delta) => {
+    const targetSpeedFactor = THREE.MathUtils.clamp(
+      window.ebikeSpeedFactor ?? 0,
+      0,
+      1,
+    );
+    speedFactorRef.current = THREE.MathUtils.lerp(
+      speedFactorRef.current,
+      targetSpeedFactor,
+      Math.min(1, delta * 10),
+    );
+
+    if (needleGroupRef.current) {
+      needleGroupRef.current.rotation.z = THREE.MathUtils.lerp(
+        SPEEDOMETER_MIN_ANGLE,
+        SPEEDOMETER_MAX_ANGLE,
+        speedFactorRef.current,
+      );
+    }
+  });
+
+  return (
+    <group renderOrder={SPEEDOMETER_RENDER_ORDER}>
+      <mesh renderOrder={SPEEDOMETER_RENDER_ORDER}>
+        <planeGeometry args={[width, height]} />
+        <meshBasicMaterial
+          map={dialTexture}
+          transparent
+          depthTest={false}
+          depthWrite={false}
+          toneMapped={false}
+          side={THREE.DoubleSide}
+        />
+      </mesh>
+
+      <group ref={needleGroupRef} position={[0, -height * 0.38, 0.002]}>
+        <mesh
+          position={[0, needleHeight / 2, 0]}
+          renderOrder={SPEEDOMETER_RENDER_ORDER + 1}
+        >
+          <planeGeometry args={[needleWidth, needleHeight]} />
+          <meshBasicMaterial
+            map={needleTexture}
+            transparent
+            depthTest={false}
+            depthWrite={false}
+            toneMapped={false}
+            side={THREE.DoubleSide}
+          />
+        </mesh>
+      </group>
+    </group>
+  );
+}

src/components/game/EbikeIntroSequence.tsx

@@ -1,11 +1,13 @@
 import { useEffect, useRef, useState } from "react";
+import * as THREE from "three";
 import { MissionNotification } from "@/components/ui/MissionNotification";
 import {
   EBIKE_BREAKDOWN_DIALOGUE_DELAY_MS,
   EBIKE_BREAKDOWN_DIALOGUE_ID,
-  EBIKE_INTRO_RIDE_DURATION_MS,
+  EBIKE_INTRO_BREAKDOWN_DISTANCE,
   EBIKE_SOUNDS,
 } from "@/data/ebike/ebikeConfig";
+import { INTRO_MISSION_NOTIFICATION_IMAGE_PATH } from "@/data/gameplay/missionNotifications";
 import { AudioManager } from "@/managers/AudioManager";
 import { useGameStore } from "@/managers/stores/useGameStore";
 import { loadDialogueManifest } from "@/utils/dialogues/loadDialogueManifest";
@@ -20,6 +22,9 @@ export function EbikeIntroSequence(): React.JSX.Element | null {
   const completeIntro = useGameStore((state) => state.completeIntro);
   const [breakdownDialogueDone, setBreakdownDialogueDone] = useState(false);
   const hasStartedBreakdown = useRef(false);
+  const rideDistance = useRef(0);
+  const lastRidePosition = useRef<THREE.Vector3 | null>(null);
+  const currentRidePosition = useRef(new THREE.Vector3());
 
   useEffect(() => {
     if (introStep !== "await-ebike-mount" || movementMode !== "ebike") return;
@@ -28,16 +33,45 @@ export function EbikeIntroSequence(): React.JSX.Element | null {
   }, [introStep, movementMode, setIntroStep]);
 
   useEffect(() => {
-    if (introStep !== "ebike-intro-ride") return undefined;
+    if (introStep !== "ebike-intro-ride") return;
 
-    const timeoutId = window.setTimeout(() => {
-      setIntroStep("ebike-breakdown");
-    }, EBIKE_INTRO_RIDE_DURATION_MS);
+    rideDistance.current = 0;
+    lastRidePosition.current = null;
+  }, [introStep]);
 
-    return () => {
-      window.clearTimeout(timeoutId);
+  useEffect(() => {
+    if (introStep !== "ebike-intro-ride" || movementMode !== "ebike") {
+      return undefined;
+    }
+
+    let animationFrameId = 0;
+    const tick = () => {
+      const parkedPosition = window.ebikeParkedPosition;
+      if (parkedPosition) {
+        currentRidePosition.current.set(...parkedPosition);
+        if (!lastRidePosition.current) {
+          lastRidePosition.current = currentRidePosition.current.clone();
+        } else {
+          rideDistance.current += currentRidePosition.current.distanceTo(
+            lastRidePosition.current,
+          );
+          lastRidePosition.current.copy(currentRidePosition.current);
+        }
+
+        if (rideDistance.current >= EBIKE_INTRO_BREAKDOWN_DISTANCE) {
+          setIntroStep("ebike-breakdown");
+          return;
+        }
+      }
+
+      animationFrameId = window.requestAnimationFrame(tick);
     };
-  }, [introStep, setIntroStep]);
+
+    animationFrameId = window.requestAnimationFrame(tick);
+    return () => {
+      window.cancelAnimationFrame(animationFrameId);
+    };
+  }, [introStep, movementMode, setIntroStep]);
 
   useEffect(() => {
     if (introStep !== "ebike-breakdown" || hasStartedBreakdown.current) {
@@ -112,14 +146,27 @@ export function EbikeIntroSequence(): React.JSX.Element | null {
     return null;
   }
 
-  if (introStep !== "await-ebike-mount" && introStep !== "ebike-intro-ride") {
+  if (
+    introStep !== "reveal" &&
+    introStep !== "await-ebike-mount" &&
+    introStep !== "ebike-intro-ride" &&
+    introStep !== "ebike-breakdown"
+  ) {
     return null;
   }
 
+  if (introStep === "ebike-breakdown") {
+    return <MissionNotification mission="ebike" />;
+  }
+
   return (
     <MissionNotification
-      mission="ebike"
-      visible={introStep === "await-ebike-mount"}
+      imagePath={INTRO_MISSION_NOTIFICATION_IMAGE_PATH}
+      visible={
+        introStep === "reveal" ||
+        introStep === "await-ebike-mount" ||
+        introStep === "ebike-intro-ride"
+      }
     />
   );
 }

src/components/site/SiteMobileBlocker.tsx

@@ -20,7 +20,7 @@ export function SiteMobileBlocker(): React.JSX.Element {
       }}
     >
       <img
-        src="/assets/logo/logo.jpg"
+        src="/assets/logo.png"
         alt="Logo Altera"
         style={{ width: 120, height: "auto" }}
       />

src/components/ui/GameUI.tsx

@@ -5,6 +5,7 @@ import { HandTrackingVisualizer } from "@/components/ui/HandTrackingVisualizer";
 import { InteractPrompt } from "@/components/ui/InteractPrompt";
 import { RepairMovementLockIndicator } from "@/components/ui/RepairMovementLockIndicator";
 import { Subtitles } from "@/components/ui/Subtitles";
+import { TalkieDialogueOverlay } from "@/components/ui/TalkieDialogueOverlay";
 
 export function GameUI(): React.JSX.Element {
   return (
@@ -15,6 +16,7 @@ export function GameUI(): React.JSX.Element {
       <InteractPrompt />
       <HandTrackingVisualizer />
       <Subtitles />
+      <TalkieDialogueOverlay />
       <GameSettingsMenu />
     </>
   );

src/components/ui/MissionNotification.tsx

@@ -2,14 +2,19 @@ import { MISSION_NOTIFICATION_IMAGE_PATHS } from "@/data/gameplay/missionNotific
 import type { RepairMissionId } from "@/types/gameplay/repairMission";
 
 interface MissionNotificationProps {
-  mission: RepairMissionId;
+  mission?: RepairMissionId;
+  imagePath?: string;
   visible?: boolean;
 }
 
 export function MissionNotification({
   mission,
+  imagePath,
   visible = true,
 }: MissionNotificationProps): React.JSX.Element {
+  const src =
+    imagePath ?? (mission ? MISSION_NOTIFICATION_IMAGE_PATHS[mission] : "");
+
   return (
     <div
       className={`mission-notification${visible ? "" : " mission-notification--hidden"}`}
@@ -19,7 +24,7 @@ export function MissionNotification({
       <span className="mission-notification__image-wrap">
         <img
           className="mission-notification__image"
-          src={MISSION_NOTIFICATION_IMAGE_PATHS[mission]}
+          src={src}
           alt="Nouvel objectif de mission"
         />
       </span>

src/components/ui/SceneLoadingOverlay.tsx

@@ -1,10 +1,18 @@
+import { useEffect, useState } from "react";
 import { AppLoadingIndicator } from "@/components/ui/AppLoadingIndicator";
 import type { SceneLoadingState } from "@/types/world/sceneLoading";
 
-const LOADING_BACKGROUND_PATH = "/assets/bg-site.png";
-const LOADING_LOGO_PATH = "/assets/logo/logo.jpg";
+const LOADING_BACKGROUND_PATH = "/assets/bg-site.webp";
+const LOADING_FRAME_RATE = 12;
+const LOADING_FRAME_INTERVAL_MS = 1000 / LOADING_FRAME_RATE;
+const LOADING_LOGO_FRAMES = [
+  "/assets/loader/Loader-1.png",
+  "/assets/loader/Loader-2.png",
+  "/assets/loader/Loader-3.png",
+  "/assets/loader/Loader-4.png",
+] as const;
 
-for (const path of [LOADING_BACKGROUND_PATH, LOADING_LOGO_PATH]) {
+for (const path of [LOADING_BACKGROUND_PATH, ...LOADING_LOGO_FRAMES]) {
   const image = new Image();
   image.src = path;
 }
@@ -16,8 +24,25 @@ interface SceneLoadingOverlayProps {
 export function SceneLoadingOverlay({
   state,
 }: SceneLoadingOverlayProps): React.JSX.Element | null {
+  const [logoFrameIndex, setLogoFrameIndex] = useState(0);
   const isReady = state.status === "ready";
   const progress = Math.round(Math.max(0, Math.min(1, state.progress)) * 100);
+  const logoFramePath =
+    LOADING_LOGO_FRAMES[logoFrameIndex] ?? LOADING_LOGO_FRAMES[0];
+
+  useEffect(() => {
+    if (isReady) return undefined;
+
+    const intervalId = window.setInterval(() => {
+      setLogoFrameIndex(
+        (currentIndex) => (currentIndex + 1) % LOADING_LOGO_FRAMES.length,
+      );
+    }, LOADING_FRAME_INTERVAL_MS);
+
+    return () => {
+      window.clearInterval(intervalId);
+    };
+  }, [isReady]);
 
   return (
     <div
@@ -33,7 +58,7 @@ export function SceneLoadingOverlay({
       <img
         alt="La Fabrik Durable"
         className="scene-loading-overlay__logo"
-        src={LOADING_LOGO_PATH}
+        src={logoFramePath}
       />
       <div className="scene-loading-overlay__footer">
         <div className="scene-loading-overlay__meta">

src/components/ui/TalkieDialogueOverlay.tsx

@@ -0,0 +1,35 @@
+import { Suspense } from "react";
+import { Canvas } from "@react-three/fiber";
+import { TalkieModel } from "@/components/ui/talkie/TalkieModel";
+import { TalkieSignalLines } from "@/components/ui/talkie/TalkieSignalLines";
+import { useTalkieDialogueOverlayState } from "@/hooks/ui/useTalkieDialogueOverlayState";
+
+export function TalkieDialogueOverlay(): React.JSX.Element | null {
+  const { isNarratorDialogue, isVisible } = useTalkieDialogueOverlayState();
+
+  if (!isVisible) return null;
+
+  return (
+    <aside
+      className={`talkie-dialogue-overlay${isNarratorDialogue ? " talkie-dialogue-overlay--active" : ""}`}
+      aria-hidden="true"
+    >
+      {isNarratorDialogue ? <TalkieSignalLines side="left" /> : null}
+      {isNarratorDialogue ? <TalkieSignalLines side="right" /> : null}
+      <div className="talkie-dialogue-overlay__model-frame">
+        <Canvas
+          camera={{ position: [0, 0, 4.2], zoom: 56 }}
+          dpr={[1, 1.5]}
+          gl={{ alpha: true, antialias: true }}
+          orthographic
+        >
+          <ambientLight intensity={2.5} />
+          <directionalLight position={[2, 3, 4]} intensity={2.8} />
+          <Suspense fallback={null}>
+            <TalkieModel active={isNarratorDialogue} />
+          </Suspense>
+        </Canvas>
+      </div>
+    </aside>
+  );
+}

src/components/ui/talkie/TalkieModel.tsx

@@ -0,0 +1,82 @@
+import { useEffect, useMemo, useRef } from "react";
+import { useFrame } from "@react-three/fiber";
+import { useGLTF } from "@react-three/drei";
+import * as THREE from "three";
+import gsap from "gsap";
+import type { Vector3Tuple } from "@/types/three/three";
+
+const TALKIE_MODEL_PATH = "/models/talkie/model.gltf";
+const TALKIE_REST_Y = -1.55;
+const TALKIE_ACTIVE_Y = -0.38;
+const TALKIE_BASE_ROTATION: Vector3Tuple = [0.08, -0.52, -0.04];
+const TALKIE_FLOAT_ROTATION_AMPLITUDE = THREE.MathUtils.degToRad(2.2);
+const TALKIE_FLOAT_Y_AMPLITUDE = 0.055;
+
+interface TalkieModelProps {
+  active: boolean;
+}
+
+export function TalkieModel({ active }: TalkieModelProps): React.JSX.Element {
+  const { scene } = useGLTF(TALKIE_MODEL_PATH);
+  const model = useMemo(() => scene.clone(true), [scene]);
+  const groupRef = useRef<THREE.Group>(null);
+  const floatRef = useRef<THREE.Group>(null);
+
+  useEffect(() => {
+    model.traverse((child) => {
+      if (child instanceof THREE.Mesh) {
+        child.castShadow = false;
+        child.receiveShadow = false;
+        child.frustumCulled = false;
+      }
+    });
+  }, [model]);
+
+  useEffect(() => {
+    const group = groupRef.current;
+    if (!group) return;
+
+    gsap.killTweensOf(group.position);
+    gsap.to(group.position, {
+      y: active ? TALKIE_ACTIVE_Y : TALKIE_REST_Y,
+      duration: active ? 0.72 : 0.5,
+      ease: active ? "power3.out" : "power2.out",
+    });
+
+    return () => {
+      gsap.killTweensOf(group.position);
+    };
+  }, [active]);
+
+  useFrame(({ clock }) => {
+    if (!floatRef.current) return;
+
+    const t = clock.getElapsedTime();
+    floatRef.current.position.y = Math.sin(t * 1.2) * TALKIE_FLOAT_Y_AMPLITUDE;
+
+    floatRef.current.rotation.x =
+      TALKIE_BASE_ROTATION[0] +
+      Math.sin(t * 0.7) * TALKIE_FLOAT_ROTATION_AMPLITUDE;
+    floatRef.current.rotation.y =
+      TALKIE_BASE_ROTATION[1] +
+      Math.sin(t * 0.55) * TALKIE_FLOAT_ROTATION_AMPLITUDE;
+    floatRef.current.rotation.z =
+      TALKIE_BASE_ROTATION[2] +
+      Math.sin(t * 0.8) * TALKIE_FLOAT_ROTATION_AMPLITUDE;
+  });
+
+  return (
+    <group ref={groupRef} position={[0, TALKIE_REST_Y, 0]}>
+      <group ref={floatRef} rotation={TALKIE_BASE_ROTATION}>
+        <primitive
+          object={model}
+          position={[0, -2.45, 0]}
+          rotation={[0, -1, 0]}
+          scale={1.2}
+        />
+      </group>
+    </group>
+  );
+}
+
+useGLTF.preload(TALKIE_MODEL_PATH);

src/components/ui/talkie/TalkieSignalLines.tsx

@@ -0,0 +1,19 @@
+interface TalkieSignalLinesProps {
+  side: "left" | "right";
+}
+
+export function TalkieSignalLines({
+  side,
+}: TalkieSignalLinesProps): React.JSX.Element {
+  return (
+    <svg
+      className={`talkie-dialogue-overlay__signals talkie-dialogue-overlay__signals--${side}`}
+      viewBox="0 0 90 120"
+      aria-hidden="true"
+    >
+      <path d="M18 48 C30 58 30 72 18 82" />
+      <path d="M34 34 C56 52 56 78 34 96" />
+      <path d="M52 20 C84 46 84 84 52 110" />
+    </svg>
+  );
+}

src/data/ebike/ebikeConfig.ts

@@ -6,19 +6,20 @@ export interface CameraTransform {
 }
 
 export const EBIKE_CAMERA_TRANSFORM: CameraTransform = {
-  position: [-3.5, 6, 0],
+  position: [-2.6, 4.5, 0],
   rotation: [-10, -90, 0],
 };
 
 export const EBIKE_DROP_PLAYER_TRANSFORM: CameraTransform = {
-  position: [0, 1.5, -3],
+  position: [0, 1.3, -2.25],
   rotation: [0, 0, 0],
 };
 
-export const EBIKE_WORLD_POSITION: Vector3Tuple = [61.5, 10, 62.4];
-export const EBIKE_WORLD_ROTATION_Y = 2.4107;
+export const EBIKE_WORLD_POSITION: Vector3Tuple = [65, 0.8, 72];
+export const EBIKE_WORLD_ROTATION_Y = -2.5;
+export const EBIKE_WORLD_SCALE = 0.35;
 
-export const EBIKE_INTRO_RIDE_DURATION_MS = 5000;
+export const EBIKE_INTRO_BREAKDOWN_DISTANCE = 15;
 export const EBIKE_BREAKDOWN_DIALOGUE_DELAY_MS = 250;
 
 export const EBIKE_MAX_SPEED = 3;

src/data/gameplay/missionNotifications.ts

@@ -1,5 +1,8 @@
 import type { RepairMissionId } from "@/types/gameplay/repairMission";
 
+export const INTRO_MISSION_NOTIFICATION_IMAGE_PATH =
+  "/assets/world/UI/intro-mission-notification.png";
+
 export const MISSION_NOTIFICATION_IMAGE_PATHS: Record<RepairMissionId, string> =
   {
     ebike: "/assets/world/UI/ebike-mission-notification.png",

src/data/player/playerConfig.ts

@@ -1,10 +1,11 @@
 import type { Vector3Tuple } from "@/types/three/three";
+import { LA_FABRIK_PLAYER_SPAWN } from "@/data/world/laFabrikConfig";
 
 export const PLAYER_EYE_HEIGHT = 1.75;
 export const PLAYER_CAPSULE_RADIUS = 0.35;
 
 export const PLAYER_WALK_SPEED = 5;
-export const PLAYER_EBIKE_SPEED = 20;
+export const PLAYER_EBIKE_SPEED = 30;
 export const PLAYER_AIR_CONTROL_FACTOR = 0.35;
 export const PLAYER_JUMP_SPEED = 9;
 export const PLAYER_GRAVITY = 30;
@@ -14,5 +15,9 @@ export const PLAYER_XZ_DAMPING_FACTOR = 8;
 export const PLAYER_FALL_RESPAWN_Y = -20;
 export const PLAYER_FALL_RESPAWN_DELAY = 3;
 
-export const PLAYER_SPAWN_POSITION_GAME: Vector3Tuple = [59.5, 10, 64.64];
+export const PLAYER_SPAWN_POSITION_GAME: Vector3Tuple = [
+  LA_FABRIK_PLAYER_SPAWN[0] + 1,
+  LA_FABRIK_PLAYER_SPAWN[1],
+  LA_FABRIK_PLAYER_SPAWN[2] - 1,
+];
 export const PLAYER_SPAWN_POSITION_PHYSICS: Vector3Tuple = [0, 3, 0];

src/data/site/siteConfig.ts

@@ -1,6 +1,6 @@
 import type { CSSProperties } from "react";
 
-const BACKGROUND_IMAGE = "/assets/bg-site.png";
+const BACKGROUND_IMAGE = "/assets/bg-site.webp";
 
 export const SITE_CONFIG = {
   backgroundImage: BACKGROUND_IMAGE,

src/data/world/cloudConfig.ts

@@ -19,7 +19,7 @@ export const CLOUD_DEFAULTS = {
   maxRotation: Math.PI * 2,
   minSpeedMultiplier: 0.4,
   maxSpeedMultiplier: 1,
-  castShadow: false,
+  castShadow: true,
   receiveShadow: false,
 };
 

src/data/world/graphicsConfig.ts

@@ -1,5 +1,3 @@
-import { CHUNK_CONFIG } from "@/data/world/chunkStreamingConfig";
-
 export const GRAPHICS_PRESET_KEYS = ["low", "medium", "high", "ultra"] as const;
 
 export type GraphicsPreset = (typeof GRAPHICS_PRESET_KEYS)[number];
@@ -32,8 +30,8 @@ export const GRAPHICS_PRESETS = {
   },
   high: {
     label: "High",
-    chunkLoadRadius: CHUNK_CONFIG.loadRadius,
-    chunkUnloadRadius: CHUNK_CONFIG.unloadRadius,
+    chunkLoadRadius: 35,
+    chunkUnloadRadius: 45,
     fogEnabled: false,
     forceLodModels: false,
     lodHighDetailDistance: 10,

src/data/world/laFabrikConfig.ts

@@ -0,0 +1,29 @@
+import type { Vector3Tuple } from "@/types/three/three";
+
+export const LA_FABRIK_CENTER: Vector3Tuple = [59.4973, 6.2746, 64.6354];
+export const LA_FABRIK_ROTATION_Y = 2.4107;
+export const LA_FABRIK_HALF_EXTENTS = {
+  x: 8.5,
+  z: 7.5,
+} as const;
+export const LA_FABRIK_PLAYER_SPAWN: Vector3Tuple = [59.5, 6.3, 64.64];
+export const LA_FABRIK_INITIAL_LOOK_AT: Vector3Tuple = [58, 7.3, 62.5];
+export const LA_FABRIK_INTERIOR_LIGHT_POSITION: Vector3Tuple = [59.5, 9, 64.64];
+
+export function isInsideLaFabrikFootprint(
+  x: number,
+  z: number,
+  padding = 0,
+): boolean {
+  const dx = x - LA_FABRIK_CENTER[0];
+  const dz = z - LA_FABRIK_CENTER[2];
+  const cos = Math.cos(-LA_FABRIK_ROTATION_Y);
+  const sin = Math.sin(-LA_FABRIK_ROTATION_Y);
+  const localX = dx * cos - dz * sin;
+  const localZ = dx * sin + dz * cos;
+
+  return (
+    Math.abs(localX) <= LA_FABRIK_HALF_EXTENTS.x + padding &&
+    Math.abs(localZ) <= LA_FABRIK_HALF_EXTENTS.z + padding
+  );
+}

src/data/world/lightingConfig.ts

@@ -30,3 +30,12 @@ export const SUN_Y_STEP = 1;
 export const SUN_Z_MIN = -100;
 export const SUN_Z_MAX = 100;
 export const SUN_Z_STEP = 1;
+
+export const SHADOW_CONFIG = {
+  mapSize: 2048,
+  cameraSize: 95,
+  cameraNear: 0.5,
+  cameraFar: 300,
+  bias: 0,
+  normalBias: 0,
+} as const;

src/data/world/octreeCollisionConfig.ts

@@ -0,0 +1,61 @@
+import type { Vector3Tuple } from "@/types/three/three";
+
+export interface OctreeCollisionBox {
+  center: Vector3Tuple;
+  size: Vector3Tuple;
+}
+
+export interface MapOctreeCollisionBox extends OctreeCollisionBox {
+  bottomY: number;
+}
+
+export const MAP_OCTREE_COLLISION_BOXES = {
+  immeuble1: {
+    center: [-0.0308, 5.8389, 0],
+    size: [17.2522, 11.6098, 9.2668],
+    bottomY: 0.034,
+  },
+  maison1: {
+    center: [0, 1.3638, 0.0536],
+    size: [2.7813, 3.022, 2.8609],
+    bottomY: -0.1472,
+  },
+} as const satisfies Record<string, MapOctreeCollisionBox>;
+
+export const LA_FABRIK_INTERIOR_COLLISION_BOXES = [
+  // NOTE: removed — this thin wall (size [0.2, 1.94, 3.71]) sat at x≈-6.93 and
+  // sealed the doorway despite the geometry having a hole there. The fabrik
+  // mesh octree already provides the surrounding wall collision, so this
+  // proxy was both redundant and bug-causing.
+  // {
+  //   center: [-6.9351, 2.278, -0.0001],
+  //   size: [0.2, 1.94, 3.711],
+  // },
+  {
+    center: [0.8026, 0.719, -3.639],
+    size: [4.346, 1.108, 1.181],
+  },
+  {
+    center: [-5.8519, 0.9362, 2.5742],
+    size: [1.67, 1.551, 2.566],
+  },
+  {
+    center: [-2.0627, 1.4875, -1.2243],
+    size: [0.691, 0.723, 0.687],
+  },
+  {
+    center: [-3.5502, 1.4378, -1.2485],
+    size: [1.055, 0.657, 0.563],
+  },
+] as const satisfies readonly OctreeCollisionBox[];
+
+export const CHARACTER_OCTREE_COLLISION_BOX = {
+  center: [0, 0.875, 0],
+  size: [0.62, 1.75, 0.62],
+} as const satisfies OctreeCollisionBox;
+
+export function hasMapOctreeCollisionBox(
+  name: string,
+): name is keyof typeof MAP_OCTREE_COLLISION_BOXES {
+  return name in MAP_OCTREE_COLLISION_BOXES;
+}

src/hooks/debug/useDebugVisualsDebug.ts

@@ -0,0 +1,66 @@
+import { useDebugFolder } from "@/hooks/debug/useDebugFolder";
+import { useDebugVisualsStore } from "@/managers/stores/useDebugVisualsStore";
+
+export function useDebugVisualsDebug(): void {
+  useDebugFolder("Debug", (folder) => {
+    const state = useDebugVisualsStore.getState();
+    const controls = {
+      showPlayerModel: state.showPlayerModel,
+      showOctree: state.showOctree,
+      octreeMinDepth: state.octreeMinDepth,
+      octreeMaxDepth: state.octreeMaxDepth,
+      octreeLeavesOnly: state.octreeLeavesOnly,
+      octreeOpacity: state.octreeOpacity,
+      octreeFabrikOnly: state.octreeFabrikOnly,
+    };
+
+    folder
+      .add(controls, "showPlayerModel")
+      .name("Show Player Model")
+      .onChange((value: boolean) => {
+        useDebugVisualsStore.getState().setShowPlayerModel(value);
+      });
+
+    folder
+      .add(controls, "showOctree")
+      .name("Show Octree")
+      .onChange((value: boolean) => {
+        useDebugVisualsStore.getState().setShowOctree(value);
+      });
+
+    folder
+      .add(controls, "octreeLeavesOnly")
+      .name("Octree Leaves Only")
+      .onChange((value: boolean) => {
+        useDebugVisualsStore.getState().setOctreeLeavesOnly(value);
+      });
+
+    folder
+      .add(controls, "octreeMinDepth", 0, 10, 1)
+      .name("Octree Min Depth")
+      .onChange((value: number) => {
+        useDebugVisualsStore.getState().setOctreeMinDepth(value);
+      });
+
+    folder
+      .add(controls, "octreeMaxDepth", 0, 10, 1)
+      .name("Octree Max Depth")
+      .onChange((value: number) => {
+        useDebugVisualsStore.getState().setOctreeMaxDepth(value);
+      });
+
+    folder
+      .add(controls, "octreeOpacity", 0.05, 1, 0.05)
+      .name("Octree Opacity")
+      .onChange((value: number) => {
+        useDebugVisualsStore.getState().setOctreeOpacity(value);
+      });
+
+    folder
+      .add(controls, "octreeFabrikOnly")
+      .name("Octree Fabrik Only")
+      .onChange((value: boolean) => {
+        useDebugVisualsStore.getState().setOctreeFabrikOnly(value);
+      });
+  });
+}

src/hooks/three/useOctreeGraphNode.ts

@@ -1,6 +1,6 @@
 import { useEffect, useRef } from "react";
 import type { RefObject } from "react";
-import type { Object3D } from "three";
+import { type Object3D } from "three";
 import { Octree } from "three-stdlib";
 import type { OctreeReadyHandler } from "@/types/three/three";
 
@@ -27,6 +27,7 @@ export function useOctreeGraphNode(
 
     const octree = new Octree();
     octree.fromGraphNode(graphNode);
+
     onOctreeReady(octree);
   }, [enabled, graphNodeRef, onOctreeReady, rebuildKey]);
 }

src/hooks/three/useShadowMapWarmup.ts

@@ -0,0 +1,105 @@
+import { useRef } from "react";
+import { useFrame } from "@react-three/fiber";
+import {
+  Material,
+  Mesh,
+  type DirectionalLight,
+  type Scene,
+  type WebGLRenderer,
+} from "three";
+
+interface UseShadowMapWarmupOptions {
+  /** Light whose shadow map should be reallocated once the scene stabilizes. */
+  light: React.RefObject<DirectionalLight | null>;
+  scene: Scene;
+  gl: WebGLRenderer;
+  invalidate: () => void;
+  /** Frames the mesh count must remain unchanged to consider the scene stable. */
+  stableFramesThreshold?: number;
+  /** Hard cap on how long we keep watching, in frames (~5s @60fps). */
+  safetyCapFrames?: number;
+  /** Sample mesh count every N frames to keep the traversal cost negligible. */
+  sampleEveryFrames?: number;
+}
+
+export function useShadowMapWarmup({
+  light,
+  scene,
+  gl,
+  invalidate,
+  stableFramesThreshold = 60,
+  safetyCapFrames = 300,
+  sampleEveryFrames = 6,
+}: UseShadowMapWarmupOptions): void {
+  const meshCountRef = useRef(0);
+  const stableFramesRef = useRef(0);
+  const watchFramesRef = useRef(0);
+  const doneRef = useRef(false);
+
+  useFrame(() => {
+    if (doneRef.current || !light.current) return;
+
+    watchFramesRef.current += 1;
+
+    if (watchFramesRef.current % sampleEveryFrames === 0) {
+      let meshCount = 0;
+      scene.traverse((object) => {
+        if (object instanceof Mesh) meshCount += 1;
+      });
+
+      if (meshCount !== meshCountRef.current) {
+        meshCountRef.current = meshCount;
+        stableFramesRef.current = 0;
+      } else {
+        stableFramesRef.current += sampleEveryFrames;
+      }
+    }
+
+    const stableEnough = stableFramesRef.current >= stableFramesThreshold;
+    const safetyCapReached = watchFramesRef.current >= safetyCapFrames;
+    if (!stableEnough && !safetyCapReached) return;
+
+    doneRef.current = true;
+    reallocateShadowMap(light.current);
+    invalidateAllMaterials(scene);
+    forceShadowPass(gl, scene, light.current);
+    invalidate();
+  });
+}
+
+function reallocateShadowMap(light: DirectionalLight): void {
+  const shadowMap = light.shadow.map;
+  if (!shadowMap) return;
+
+  shadowMap.dispose();
+  light.shadow.map = null;
+}
+
+function invalidateAllMaterials(scene: Scene): void {
+  const seen = new Set<Material>();
+  scene.traverse((object) => {
+    if (!(object instanceof Mesh)) return;
+    const materials = Array.isArray(object.material)
+      ? object.material
+      : [object.material];
+    for (const material of materials) {
+      if (!material || seen.has(material)) continue;
+      seen.add(material);
+      material.needsUpdate = true;
+    }
+  });
+}
+
+function forceShadowPass(
+  gl: WebGLRenderer,
+  scene: Scene,
+  light: DirectionalLight,
+): void {
+  scene.updateMatrixWorld(true);
+  light.target.updateMatrixWorld(true);
+  light.updateMatrixWorld(true);
+  light.shadow.camera.updateMatrixWorld(true);
+  light.shadow.camera.updateProjectionMatrix();
+  light.shadow.needsUpdate = true;
+  gl.shadowMap.needsUpdate = true;
+}

src/hooks/ui/useTalkieDialogueOverlayState.ts

@@ -0,0 +1,27 @@
+import { GAME_STEPS } from "@/data/game/gameStateConfig";
+import { useGameStore } from "@/managers/stores/useGameStore";
+import { useSubtitleStore } from "@/managers/stores/useSubtitleStore";
+
+const TALKIE_FIRST_VISIBLE_STEP = "reveal";
+const TALKIE_FIRST_VISIBLE_STEP_INDEX = GAME_STEPS.indexOf(
+  TALKIE_FIRST_VISIBLE_STEP,
+);
+
+interface TalkieDialogueOverlayState {
+  isNarratorDialogue: boolean;
+  isVisible: boolean;
+}
+
+export function useTalkieDialogueOverlayState(): TalkieDialogueOverlayState {
+  const activeSubtitle = useSubtitleStore((state) => state.activeSubtitle);
+  const mainState = useGameStore((state) => state.mainState);
+  const introStep = useGameStore((state) => state.intro.currentStep);
+  const introStepIndex = GAME_STEPS.indexOf(introStep);
+
+  return {
+    isNarratorDialogue: activeSubtitle?.speaker === "Narrateur",
+    isVisible:
+      mainState !== "intro" ||
+      introStepIndex >= TALKIE_FIRST_VISIBLE_STEP_INDEX,
+  };
+}

src/hooks/world/useWorldSceneLoading.ts

@@ -11,13 +11,10 @@ interface UseWorldSceneLoadingOptions {
 interface UseWorldSceneLoadingResult {
   octree: Octree | null;
   gameplayReady: boolean;
-  shouldWarmUpShadows: boolean;
   showGameStage: boolean;
   handleGameStageLoaded: () => void;
   handleGameMapLoaded: () => void;
   handleOctreeReady: (octree: Octree) => void;
-  handleShadowWarmupReady: () => void;
-  handleShadowWarmupStarted: () => void;
 }
 
 export function useWorldSceneLoading({
@@ -27,19 +24,13 @@ export function useWorldSceneLoading({
   const [octree, setOctree] = useState<Octree | null>(null);
   const [gameMapLoaded, setGameMapLoaded] = useState(false);
   const [gameStageLoaded, setGameStageLoaded] = useState(false);
-  const [shadowsReady, setShadowsReady] = useState(false);
   const showGameStage = sceneMode === "game" && gameMapLoaded;
-  const gameSceneReadyForShadows =
-    showGameStage && gameStageLoaded && octree !== null;
-  const shadowWarmupReady = sceneMode === "game" && gameSceneReadyForShadows;
-  const shouldWarmUpShadows = shadowWarmupReady && !shadowsReady;
-  const gameplayReady = gameSceneReadyForShadows && shadowsReady;
+  const gameplayReady = showGameStage && gameStageLoaded && octree !== null;
   const sceneReady =
     (sceneMode === "game" && gameplayReady) ||
     (sceneMode === "physics" && octree !== null);
 
   const handleGameMapLoaded = useCallback(() => {
-    setShadowsReady(false);
     setGameMapLoaded(true);
   }, []);
 
@@ -54,7 +45,6 @@ export function useWorldSceneLoading({
 
   const handleOctreeReady = useCallback(
     (nextOctree: Octree) => {
-      setShadowsReady(false);
       setOctree(nextOctree);
       onLoadingStateChange?.({
         currentStep: "Collision prête",
@@ -65,23 +55,6 @@ export function useWorldSceneLoading({
     [onLoadingStateChange],
   );
 
-  const handleShadowWarmupStarted = useCallback(() => {
-    onLoadingStateChange?.({
-      currentStep: "Activation des ombres",
-      progress: 0.97,
-      status: "loading",
-    });
-  }, [onLoadingStateChange]);
-
-  const handleShadowWarmupReady = useCallback(() => {
-    setShadowsReady(true);
-    onLoadingStateChange?.({
-      currentStep: "Ombres prêtes",
-      progress: 0.99,
-      status: "loading",
-    });
-  }, [onLoadingStateChange]);
-
   useEffect(() => {
     onLoadingStateChange?.({
       currentStep: "Initialisation du jeu",
@@ -115,12 +88,9 @@ export function useWorldSceneLoading({
   return {
     octree,
     gameplayReady,
-    shouldWarmUpShadows,
     showGameStage,
     handleGameStageLoaded,
     handleGameMapLoaded,
     handleOctreeReady,
-    handleShadowWarmupReady,
-    handleShadowWarmupStarted,
   };
 }

src/index.css

@@ -942,11 +942,11 @@ canvas {
 .scene-loading-overlay__logo {
   position: relative;
   z-index: 1;
+  display: block;
   width: clamp(180px, 28vw, 320px);
   max-height: min(38vh, 320px);
-  border-radius: 16px;
-  object-fit: cover;
-  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.28);
+  height: auto;
+  object-fit: contain;
 }
 
 .scene-loading-overlay__footer {
@@ -1237,6 +1237,114 @@ canvas {
   color: #f9a8d4;
 }
 
+/* Dialogue talkie */
+.talkie-dialogue-overlay {
+  position: fixed;
+  left: 0;
+  bottom: 0;
+  z-index: 16;
+  width: clamp(190px, 18vw, 300px);
+  aspect-ratio: 1;
+  pointer-events: none;
+}
+
+.talkie-dialogue-overlay__model-frame {
+  position: absolute;
+  inset: 0;
+  filter: drop-shadow(0 16px 22px rgba(0, 0, 0, 0.55));
+}
+
+.talkie-dialogue-overlay--active .talkie-dialogue-overlay__model-frame {
+  animation: talkie-radio-shake 1s ease-in-out infinite;
+}
+
+.talkie-dialogue-overlay__model-frame canvas {
+  width: 100% !important;
+  height: 100% !important;
+}
+
+.talkie-dialogue-overlay__signals {
+  position: absolute;
+  top: 52%;
+  z-index: 2;
+  width: 38%;
+  height: 52%;
+  overflow: visible;
+  opacity: 0.8;
+  animation: talkie-signal-pulse 1s ease-in-out infinite;
+}
+
+.talkie-dialogue-overlay__signals--left {
+  right: 62%;
+  transform: translateY(-50%) scaleX(-1);
+}
+
+.talkie-dialogue-overlay__signals--right {
+  left: 62%;
+  transform: translateY(-50%);
+}
+
+.talkie-dialogue-overlay__signals path {
+  fill: none;
+  stroke: rgba(235, 244, 255, 0.9);
+  stroke-linecap: round;
+  stroke-width: 5;
+  filter: drop-shadow(0 0 7px rgba(125, 211, 252, 0.72));
+}
+
+.talkie-dialogue-overlay__signals path:nth-child(2) {
+  animation-delay: 90ms;
+  opacity: 0.75;
+}
+
+.talkie-dialogue-overlay__signals path:nth-child(3) {
+  animation-delay: 180ms;
+  opacity: 0.55;
+}
+
+@keyframes talkie-radio-shake {
+  0%,
+  11%,
+  23%,
+  100% {
+    transform: translate3d(0, 0, 0) rotate(0deg);
+  }
+
+  3%,
+  15%,
+  27% {
+    transform: translate3d(-2px, 1px, 0) rotate(-1.7deg);
+  }
+
+  6%,
+  18%,
+  30% {
+    transform: translate3d(2px, -1px, 0) rotate(1.7deg);
+  }
+
+  9%,
+  21%,
+  33% {
+    transform: translate3d(-1px, 0, 0) rotate(-0.8deg);
+  }
+}
+
+@keyframes talkie-signal-pulse {
+  0%,
+  100% {
+    opacity: 0.28;
+  }
+
+  18%,
+  38% {
+    opacity: 0.95;
+  }
+
+  60% {
+    opacity: 0.45;
+  }
+}
+
 /* In-game settings menu */
 .game-settings-menu {
   position: fixed;

src/managers/stores/useDebugVisualsStore.ts

@@ -0,0 +1,35 @@
+import { create } from "zustand";
+
+interface DebugVisualsStore {
+  showPlayerModel: boolean;
+  setShowPlayerModel: (value: boolean) => void;
+  showOctree: boolean;
+  setShowOctree: (value: boolean) => void;
+  octreeMaxDepth: number;
+  setOctreeMaxDepth: (value: number) => void;
+  octreeMinDepth: number;
+  setOctreeMinDepth: (value: number) => void;
+  octreeLeavesOnly: boolean;
+  setOctreeLeavesOnly: (value: boolean) => void;
+  octreeOpacity: number;
+  setOctreeOpacity: (value: number) => void;
+  octreeFabrikOnly: boolean;
+  setOctreeFabrikOnly: (value: boolean) => void;
+}
+
+export const useDebugVisualsStore = create<DebugVisualsStore>((set) => ({
+  showPlayerModel: false,
+  setShowPlayerModel: (showPlayerModel) => set({ showPlayerModel }),
+  showOctree: false,
+  setShowOctree: (showOctree) => set({ showOctree }),
+  octreeMaxDepth: 8,
+  setOctreeMaxDepth: (octreeMaxDepth) => set({ octreeMaxDepth }),
+  octreeMinDepth: 4,
+  setOctreeMinDepth: (octreeMinDepth) => set({ octreeMinDepth }),
+  octreeLeavesOnly: true,
+  setOctreeLeavesOnly: (octreeLeavesOnly) => set({ octreeLeavesOnly }),
+  octreeOpacity: 0.35,
+  setOctreeOpacity: (octreeOpacity) => set({ octreeOpacity }),
+  octreeFabrikOnly: false,
+  setOctreeFabrikOnly: (octreeFabrikOnly) => set({ octreeFabrikOnly }),
+}));

src/managers/stores/useSettingsStore.ts

@@ -1,4 +1,5 @@
 import { create } from "zustand";
+import { createJSONStorage, persist } from "zustand/middleware";
 import { AudioManager } from "@/managers/AudioManager";
 import type { AudioCategory } from "@/managers/AudioManager";
 import type { SubtitleLanguage } from "@/types/settings/settings";
@@ -33,6 +34,8 @@ const DEFAULT_SETTINGS: SettingsState = {
   subtitleLanguage: "fr",
 };
 
+const SETTINGS_STORAGE_KEY = "la-fabrik-settings";
+
 function clampVolume(volume: number): number {
   return Math.max(0, Math.min(1, volume));
 }
@@ -46,36 +49,50 @@ function setAudioCategoryVolume(
   return nextVolume;
 }
 
-function applyDefaultAudioSettings(): void {
-  AudioManager.getInstance().setCategoryVolume(
-    "music",
-    DEFAULT_SETTINGS.musicVolume,
-  );
-  AudioManager.getInstance().setCategoryVolume(
-    "sfx",
-    DEFAULT_SETTINGS.sfxVolume,
-  );
+function applyAudioSettings(
+  settings: Pick<SettingsState, "musicVolume" | "sfxVolume" | "dialogueVolume">,
+): void {
+  AudioManager.getInstance().setCategoryVolume("music", settings.musicVolume);
+  AudioManager.getInstance().setCategoryVolume("sfx", settings.sfxVolume);
   AudioManager.getInstance().setCategoryVolume(
     "dialogue",
-    DEFAULT_SETTINGS.dialogueVolume,
+    settings.dialogueVolume,
   );
 }
 
-applyDefaultAudioSettings();
+applyAudioSettings(DEFAULT_SETTINGS);
 
-export const useSettingsStore = create<SettingsStore>()((set) => ({
-  ...DEFAULT_SETTINGS,
-  setSettingsMenuOpen: (isSettingsMenuOpen) => set({ isSettingsMenuOpen }),
-  setMusicVolume: (volume) =>
-    set({ musicVolume: setAudioCategoryVolume("music", volume) }),
-  setSfxVolume: (volume) =>
-    set({ sfxVolume: setAudioCategoryVolume("sfx", volume) }),
-  setDialogueVolume: (volume) =>
-    set({ dialogueVolume: setAudioCategoryVolume("dialogue", volume) }),
-  setSubtitlesEnabled: (subtitlesEnabled) => set({ subtitlesEnabled }),
-  setSubtitleLanguage: (subtitleLanguage) => set({ subtitleLanguage }),
-  resetSettings: () => {
-    applyDefaultAudioSettings();
-    set(DEFAULT_SETTINGS);
-  },
-}));
+export const useSettingsStore = create<SettingsStore>()(
+  persist(
+    (set) => ({
+      ...DEFAULT_SETTINGS,
+      setSettingsMenuOpen: (isSettingsMenuOpen) => set({ isSettingsMenuOpen }),
+      setMusicVolume: (volume) =>
+        set({ musicVolume: setAudioCategoryVolume("music", volume) }),
+      setSfxVolume: (volume) =>
+        set({ sfxVolume: setAudioCategoryVolume("sfx", volume) }),
+      setDialogueVolume: (volume) =>
+        set({ dialogueVolume: setAudioCategoryVolume("dialogue", volume) }),
+      setSubtitlesEnabled: (subtitlesEnabled) => set({ subtitlesEnabled }),
+      setSubtitleLanguage: (subtitleLanguage) => set({ subtitleLanguage }),
+      resetSettings: () => {
+        applyAudioSettings(DEFAULT_SETTINGS);
+        set(DEFAULT_SETTINGS);
+      },
+    }),
+    {
+      name: SETTINGS_STORAGE_KEY,
+      storage: createJSONStorage(() => window.localStorage),
+      partialize: (state) => ({
+        dialogueVolume: state.dialogueVolume,
+        musicVolume: state.musicVolume,
+        sfxVolume: state.sfxVolume,
+        subtitleLanguage: state.subtitleLanguage,
+        subtitlesEnabled: state.subtitlesEnabled,
+      }),
+      onRehydrateStorage: () => (state) => {
+        if (state) applyAudioSettings(state);
+      },
+    },
+  ),
+);

src/managers/stores/useWorldSettingsStore.ts

@@ -1,5 +1,5 @@
 import { create } from "zustand";
-import { persist } from "zustand/middleware";
+import { createJSONStorage, persist } from "zustand/middleware";
 import { CLOUD_DEFAULTS, type CloudState } from "@/data/world/cloudConfig";
 import { FOG_CONFIG, type FogState } from "@/data/world/fogConfig";
 import { WIND_DEFAULTS, type WindState } from "@/data/world/windConfig";
@@ -47,83 +47,89 @@ const DEFAULT_STATE: WorldSettingsState = {
   graphics: { ...GRAPHICS_DEFAULTS },
 };
 
+const WORLD_SETTINGS_STORAGE_KEY = "la-fabrik-world-settings";
+
 export const useWorldSettingsStore = create<WorldSettingsStore>()(
   persist(
     (set) => ({
-  ...DEFAULT_STATE,
+      ...DEFAULT_STATE,
 
-  setClouds: (cloudsUpdate) =>
-    set((state) => ({
-      clouds: { ...state.clouds, ...cloudsUpdate },
-    })),
+      setClouds: (cloudsUpdate) =>
+        set((state) => ({
+          clouds: { ...state.clouds, ...cloudsUpdate },
+        })),
 
-  setFog: (fogUpdate) =>
-    set((state) => ({
-      fog: { ...state.fog, ...fogUpdate },
-    })),
+      setFog: (fogUpdate) =>
+        set((state) => ({
+          fog: { ...state.fog, ...fogUpdate },
+        })),
 
-  setWind: (windUpdate) =>
-    set((state) => ({
-      wind: { ...state.wind, ...windUpdate },
-    })),
+      setWind: (windUpdate) =>
+        set((state) => ({
+          wind: { ...state.wind, ...windUpdate },
+        })),
 
-  setWindSpeed: (speed) =>
-    set((state) => ({
-      wind: { ...state.wind, speed },
-    })),
+      setWindSpeed: (speed) =>
+        set((state) => ({
+          wind: { ...state.wind, speed },
+        })),
 
-  setWindDirection: (direction) =>
-    set((state) => ({
-      wind: { ...state.wind, direction },
-    })),
+      setWindDirection: (direction) =>
+        set((state) => ({
+          wind: { ...state.wind, direction },
+        })),
 
-  setWindStrength: (strength) =>
-    set((state) => ({
-      wind: { ...state.wind, strength },
-    })),
+      setWindStrength: (strength) =>
+        set((state) => ({
+          wind: { ...state.wind, strength },
+        })),
 
-  setGraphics: (graphicsUpdate) =>
-    set((state) => ({
-      graphics: { ...state.graphics, ...graphicsUpdate },
-    })),
+      setGraphics: (graphicsUpdate) =>
+        set((state) => ({
+          graphics: { ...state.graphics, ...graphicsUpdate },
+        })),
 
-  setGraphicsPreset: (preset) =>
-    set((state) => ({
-      graphics: { ...state.graphics, preset },
-    })),
+      setGraphicsPreset: (preset) =>
+        set((state) => ({
+          graphics: { ...state.graphics, preset },
+        })),
 
-  setDynamicGrass: (dynamicGrass) =>
-    set((state) => ({
-      graphics: { ...state.graphics, dynamicGrass },
-    })),
+      setDynamicGrass: (dynamicGrass) =>
+        set((state) => ({
+          graphics: { ...state.graphics, dynamicGrass },
+        })),
 
-  setDynamicTrees: (dynamicTrees) =>
-    set((state) => ({
-      graphics: { ...state.graphics, dynamicTrees },
-    })),
+      setDynamicTrees: (dynamicTrees) =>
+        set((state) => ({
+          graphics: { ...state.graphics, dynamicTrees },
+        })),
 
-  setDynamicClouds: (dynamicClouds) =>
-    set((state) => ({
-      graphics: { ...state.graphics, dynamicClouds },
-    })),
+      setDynamicClouds: (dynamicClouds) =>
+        set((state) => ({
+          graphics: { ...state.graphics, dynamicClouds },
+        })),
 
-  setShadowsEnabled: (shadowsEnabled) =>
-    set((state) => ({
-      graphics: { ...state.graphics, shadowsEnabled },
-    })),
+      setShadowsEnabled: (shadowsEnabled) =>
+        set((state) => ({
+          graphics: { ...state.graphics, shadowsEnabled },
+        })),
 
-  setGrassDensity: (grassDensity) =>
-    set((state) => ({
-      graphics: { ...state.graphics, grassDensity },
-    })),
+      setGrassDensity: (grassDensity) =>
+        set((state) => ({
+          graphics: { ...state.graphics, grassDensity },
+        })),
 
-  resetToDefaults: () => set(DEFAULT_STATE),
+      resetToDefaults: () => set(DEFAULT_STATE),
     }),
     {
-      name: "la-fabrik-world-settings",
-      // Persist only graphics settings (preset + options) — fog/wind/clouds
-      // reset to defaults on each session.
-      partialize: (state) => ({ graphics: state.graphics }),
+      name: WORLD_SETTINGS_STORAGE_KEY,
+      storage: createJSONStorage(() => window.localStorage),
+      partialize: (state) => ({
+        clouds: state.clouds,
+        fog: state.fog,
+        graphics: state.graphics,
+        wind: state.wind,
+      }),
     },
   ),
 );

src/pages/page.tsx

@@ -217,6 +217,7 @@ export function HomePage(): React.JSX.Element | null {
       gl.shadowMap.enabled = true;
       gl.shadowMap.type = THREE.PCFShadowMap;
       gl.shadowMap.autoUpdate = true;
+      gl.shadowMap.needsUpdate = true;
 
       // The browser hands us a WEBGL_lose_context extension we can use to
       // ask the GPU to restore the context after a loss. Without this the
@@ -234,6 +235,7 @@ export function HomePage(): React.JSX.Element | null {
         gl.shadowMap.enabled = true;
         gl.shadowMap.type = THREE.PCFShadowMap;
         gl.shadowMap.autoUpdate = true;
+        gl.shadowMap.needsUpdate = true;
         logger.info("WebGL", "Context restored");
       };
 

src/pages/site/page.tsx

@@ -4,17 +4,10 @@ import { SiteWelcomeScreen } from "@/components/site/SiteWelcomeScreen";
 import { SiteSituationScreen } from "@/components/site/SiteSituationScreen";
 import { SiteNamingScreen } from "@/components/site/SiteNamingScreen";
 import { SiteTransitionOverlay } from "@/components/site/SiteTransitionOverlay";
-import { SiteMobileBlocker } from "@/components/site/SiteMobileBlocker";
 import { SiteLayout } from "@/components/site/SiteLayout";
-import { useIsMobile } from "@/hooks/ui/useIsMobile";
 
 export function SitePage(): React.JSX.Element {
   const currentStep = useSiteStore((state) => state.currentStep);
-  const isMobile = useIsMobile();
-
-  if (isMobile) {
-    return <SiteMobileBlocker />;
-  }
 
   if (currentStep === "disclaimer") {
     return <SiteDisclaimerScreen />;

src/utils/debug/Debug.ts

@@ -9,6 +9,7 @@ const DEBUG_CONTROLS_STORAGE_KEY = "la-fabrik-debug-controls";
 
 interface StoredDebugControls {
   cameraMode: CameraMode;
+  handTrackingSource: HandTrackingSource;
   sceneMode: SceneMode;
 }
 
@@ -25,6 +26,7 @@ const DEBUG_FOLDER_ORDER = [
   "Hand Tracking",
   "Map",
   "Personnages",
+  "Debug",
 ] as const;
 
 function isRecord(value: unknown): value is Record<string, unknown> {
@@ -39,6 +41,10 @@ function isSceneMode(value: unknown): value is SceneMode {
   return value === "game" || value === "physics";
 }
 
+function isHandTrackingSource(value: unknown): value is HandTrackingSource {
+  return value === "browser" || value === "backend";
+}
+
 function getStoredDebugControls(): Partial<StoredDebugControls> {
   try {
     const rawValue = window.localStorage.getItem(DEBUG_CONTROLS_STORAGE_KEY);
@@ -51,6 +57,9 @@ function getStoredDebugControls(): Partial<StoredDebugControls> {
       ...(isCameraMode(parsedValue.cameraMode)
         ? { cameraMode: parsedValue.cameraMode }
         : {}),
+      ...(isHandTrackingSource(parsedValue.handTrackingSource)
+        ? { handTrackingSource: parsedValue.handTrackingSource }
+        : {}),
       ...(isSceneMode(parsedValue.sceneMode)
         ? { sceneMode: parsedValue.sceneMode }
         : {}),
@@ -94,7 +103,7 @@ export class Debug {
     this.controls = {
       cameraMode: storedControls.cameraMode ?? "player",
       fogEnabled: FOG_CONFIG.enabled,
-      handTrackingSource: "browser",
+      handTrackingSource: storedControls.handTrackingSource ?? "browser",
       showDebugOverlay: true,
       showHandTrackingSvg: false,
       showInteractionSpheres: false,
@@ -159,7 +168,7 @@ export class Debug {
         .name("Source")
         .onChange((value: HandTrackingSource) => {
           this.controls.handTrackingSource = value;
-          this.emit();
+          this.saveAndEmit();
         });
     }
   }
@@ -246,7 +255,7 @@ export class Debug {
 
   setHandTrackingSource(value: HandTrackingSource): void {
     this.controls.handTrackingSource = value;
-    this.emit();
+    this.saveAndEmit();
   }
 
   getFogEnabled(): boolean {
@@ -285,6 +294,7 @@ export class Debug {
         DEBUG_CONTROLS_STORAGE_KEY,
         JSON.stringify({
           cameraMode: this.controls.cameraMode,
+          handTrackingSource: this.controls.handTrackingSource,
           sceneMode: this.controls.sceneMode,
         }),
       );

src/world/Environment.tsx

@@ -15,24 +15,11 @@ import { SkyModel } from "@/components/three/world/SkyModel";
 import { CloudSystem } from "@/world/clouds/CloudSystem";
 import { FogSystem } from "@/world/fog/FogSystem";
 import { GrassSystem } from "@/world/grass/GrassSystem";
-import { SceneShadowWarmup } from "@/world/SceneShadowWarmup";
 import { VegetationSystem } from "@/world/vegetation/VegetationSystem";
 import { WaterSystem } from "@/world/water/WaterSystem";
 import { WorldPlane } from "@/world/WorldPlane";
 
-interface ShadowWarmupConfig {
-  active: boolean;
-  onReady: () => void;
-  onStarted: () => void;
-}
-
-interface EnvironmentProps {
-  shadowWarmup?: ShadowWarmupConfig;
-}
-
-export function Environment({
-  shadowWarmup,
-}: EnvironmentProps): React.JSX.Element {
+export function Environment(): React.JSX.Element {
   const sceneMode = useSceneMode();
   const groups = useMapPerformanceStore((state) => state.groups);
   const models = useMapPerformanceStore((state) => state.models);
@@ -47,13 +34,6 @@ export function Environment({
   return (
     <>
       <FogSystem />
-      {shadowWarmup ? (
-        <SceneShadowWarmup
-          active={shadowWarmup.active}
-          onReady={shadowWarmup.onReady}
-          onStarted={shadowWarmup.onStarted}
-        />
-      ) : null}
       {showSky ? (
         <SkyModel
           fallbackColor={GAME_SCENE_FALLBACK_BACKGROUND_COLOR}

src/world/GameMap.tsx

@@ -27,6 +27,7 @@ import { useMapLodModelPath } from "@/hooks/world/useMapLodModelPath";
 import { GameMapCollision } from "@/world/GameMapCollision";
 import { GeneratedMapNodeInstance } from "@/world/map-generated/GeneratedMapNodeInstance";
 import { isGeneratedMapModelName } from "@/data/world/generatedMapModelConfig";
+import { hasMapOctreeCollisionBox } from "@/data/world/octreeCollisionConfig";
 import { getMapSingleModelScaleMultiplier } from "@/data/world/mapInstancingConfig";
 import { MapInstancingSystem } from "@/world/map-instancing/MapInstancingSystem";
 import type { SceneLoadingChangeHandler } from "@/types/world/sceneLoading";
@@ -115,6 +116,9 @@ export function GameMap({
   const [collisionMapNodes, setCollisionMapNodes] = useState<LoadedMapNode[]>(
     [],
   );
+  const [proxyCollisionMapNodes, setProxyCollisionMapNodes] = useState<
+    MapNode[]
+  >([]);
   const [terrainNode, setTerrainNode] = useState<MapNode | null>(null);
   const [mapLoaded, setMapLoaded] = useState(false);
   const [settledMapNodeCount, setSettledMapNodeCount] = useState(0);
@@ -134,6 +138,7 @@ export function GameMap({
     (currentStep: string) => {
       setRenderMapNodes([]);
       setCollisionMapNodes([]);
+      setProxyCollisionMapNodes([]);
       setTerrainNode(null);
       setMapLoaded(true);
       settledMapNodesRef.current.clear();
@@ -191,6 +196,10 @@ export function GameMap({
             const modelUrl = sceneData.models.get(node.name);
             return { node, modelUrl: modelUrl ?? null };
           });
+        const loadedProxyCollisionNodes = sceneData.mapNodes.filter(
+          (node) =>
+            node.type === "Object3D" && hasMapOctreeCollisionBox(node.name),
+        );
         const loadedTerrainNode = getTerrainMapNode(sceneData.mapNodes);
         const repairMissionAnchors = getRepairMissionMapAnchors(
           sceneData.mapNodes,
@@ -211,6 +220,7 @@ export function GameMap({
 
         setRenderMapNodes(loadedMapNodes);
         setCollisionMapNodes(loadedCollisionNodes);
+        setProxyCollisionMapNodes(loadedProxyCollisionNodes);
         setTerrainNode(loadedTerrainNode);
         setRepairMissionAnchors(repairMissionAnchors);
         setMapLoaded(true);
@@ -285,6 +295,7 @@ export function GameMap({
         buildOctree={buildOctree}
         mapReady={mapReady}
         nodes={collisionMapNodes}
+        proxyNodes={proxyCollisionMapNodes}
         onLoaded={onLoaded}
         onLoadingStateChange={onLoadingStateChange}
         onOctreeReady={onOctreeReady}

src/world/GameMapCollision.tsx

@@ -17,9 +17,24 @@ import {
   normalizeMapScale,
   useTerrainHeightSampler,
 } from "@/hooks/three/useTerrainHeight";
+import {
+  CHARACTER_CONFIGS,
+  CHARACTER_IDS,
+  type CharacterId,
+} from "@/data/world/characters/characterConfig";
+import {
+  CHARACTER_OCTREE_COLLISION_BOX,
+  LA_FABRIK_INTERIOR_COLLISION_BOXES,
+  MAP_OCTREE_COLLISION_BOXES,
+  hasMapOctreeCollisionBox,
+  type OctreeCollisionBox,
+} from "@/data/world/octreeCollisionConfig";
+import { getMapModelScaleMultiplier } from "@/data/world/mapInstancingConfig";
+import { useCharacterDebugStore } from "@/managers/stores/useCharacterDebugStore";
+import { useGameStore } from "@/managers/stores/useGameStore";
 import { WorldBoundsCollision } from "@/world/collision/WorldBoundsCollision";
 import type { MapNode } from "@/types/map/mapScene";
-import type { OctreeReadyHandler } from "@/types/three/three";
+import type { OctreeReadyHandler, Vector3Tuple } from "@/types/three/three";
 import type { SceneLoadingChangeHandler } from "@/types/world/sceneLoading";
 import { logModelLoadError } from "@/utils/three/modelLoadLogger";
 
@@ -39,6 +54,7 @@ interface GameMapCollisionProps {
   buildOctree?: boolean;
   mapReady: boolean;
   nodes: readonly GameMapCollisionNode[];
+  proxyNodes: readonly MapNode[];
   onLoaded?: (() => void) | undefined;
   onLoadingStateChange?: SceneLoadingChangeHandler | undefined;
   onOctreeReady: OctreeReadyHandler;
@@ -101,6 +117,7 @@ export function GameMapCollision({
   buildOctree = true,
   mapReady,
   nodes,
+  proxyNodes,
   onLoaded,
   onLoadingStateChange,
   onOctreeReady,
@@ -109,10 +126,28 @@ export function GameMapCollision({
   const settledCollisionNodesRef = useRef(new Set<number>());
   const loadedNotifiedRef = useRef(false);
   const [settledCollisionNodeCount, setSettledCollisionNodeCount] = useState(0);
+  const mainState = useGameStore((state) => state.mainState);
   const terrainHeight = useTerrainHeightSampler();
   const collisionNodes = nodes.filter(isCollisionNode);
+  const includeCharacterCollisions = mainState !== "ebike";
+  const characterCollisionCount = includeCharacterCollisions
+    ? CHARACTER_IDS.length
+    : 0;
+  const collisionSourceCount =
+    collisionNodes.length + proxyNodes.length + characterCollisionCount;
   const collisionReady =
     mapReady && settledCollisionNodeCount >= collisionNodes.length;
+  const characterCollisionSignature = useCharacterDebugStore((state) =>
+    includeCharacterCollisions
+      ? CHARACTER_IDS.map((id) => {
+          const character = state.characters[id];
+          return [...character.position, ...character.rotation].join(",");
+        }).join("|")
+      : "characters-hidden",
+  );
+  const collisionRebuildKey = collisionReady
+    ? `${collisionNodes.length}:${collisionSourceCount}:${characterCollisionSignature}`
+    : "pending";
 
   const notifyLoaded = useCallback(() => {
     if (loadedNotifiedRef.current) return;
@@ -144,14 +179,14 @@ export function GameMapCollision({
   useOctreeGraphNode(
     groupRef,
     handleOctreeReady,
-    collisionReady ? collisionNodes.length : 0,
-    buildOctree && collisionReady && collisionNodes.length > 0,
+    collisionRebuildKey,
+    buildOctree && collisionReady && collisionSourceCount > 0,
   );
 
   useEffect(() => {
     if (!mapReady) return;
 
-    if (collisionNodes.length === 0) {
+    if (collisionSourceCount === 0) {
       notifyLoaded();
       return;
     }
@@ -171,6 +206,7 @@ export function GameMapCollision({
   }, [
     buildOctree,
     collisionNodes.length,
+    collisionSourceCount,
     collisionReady,
     mapReady,
     notifyLoaded,
@@ -180,6 +216,18 @@ export function GameMapCollision({
   return (
     <group ref={groupRef} visible={false}>
       {mapReady ? <WorldBoundsCollision /> : null}
+      {mapReady
+        ? proxyNodes.map((node, index) => (
+            <MapCollisionBoxProxy
+              key={`proxy-collision-${index}`}
+              node={node}
+              terrainHeight={terrainHeight}
+            />
+          ))
+        : null}
+      {mapReady && includeCharacterCollisions ? (
+        <CharacterCollisionProxies terrainHeight={terrainHeight} />
+      ) : null}
       {mapReady
         ? collisionNodes.map((mapNode, index) => (
             <CollisionErrorBoundary
@@ -223,6 +271,24 @@ function CollisionModelInstance({
     scale: normalizedScale,
   });
   const sceneInstance = useClonedObject(scene);
+  useEffect(() => {
+    if (node.name !== "lafabrik") return;
+
+    const isDoorSlab = (name: string): boolean =>
+      name === "porte" || /^porte[._]\d+$/i.test(name);
+    const isDoorFrameThickenChild = (child: THREE.Object3D): boolean =>
+      child.parent?.name === "Thicken";
+
+    const doorMeshes: THREE.Object3D[] = [];
+    sceneInstance.traverse((child) => {
+      if (isDoorSlab(child.name) || isDoorFrameThickenChild(child)) {
+        doorMeshes.push(child);
+      }
+    });
+    for (const child of doorMeshes) {
+      child.removeFromParent();
+    }
+  }, [node.name, sceneInstance]);
   const collisionPosition = useMemo(() => {
     if (node.name === "terrain") return position;
 
@@ -237,11 +303,131 @@ function CollisionModelInstance({
   }, [onLoaded]);
 
   return (
-    <primitive
-      object={sceneInstance}
-      position={collisionPosition}
-      rotation={rotation}
-      scale={normalizedScale}
-    />
+    <>
+      <primitive
+        object={sceneInstance}
+        position={collisionPosition}
+        rotation={rotation}
+        scale={normalizedScale}
+      />
+      {node.name === "lafabrik" ? (
+        <group
+          name="lafabrik-interior-collision-proxies"
+          position={collisionPosition}
+          rotation={rotation}
+          scale={normalizedScale}
+        >
+          {LA_FABRIK_INTERIOR_COLLISION_BOXES.map((box, index) => (
+            <CollisionBox key={`lafabrik-interior-${index}`} box={box} />
+          ))}
+        </group>
+      ) : null}
+    </>
+  );
+}
+
+function CollisionBox({ box }: { box: OctreeCollisionBox }): React.JSX.Element {
+  return (
+    <group position={box.center}>
+      <mesh>
+        <boxGeometry args={box.size} />
+        <meshBasicMaterial />
+      </mesh>
+      <mesh rotation={[0, Math.PI, 0]}>
+        <boxGeometry args={box.size} />
+        <meshBasicMaterial />
+      </mesh>
+    </group>
+  );
+}
+
+function createScaledMapNodeScale(node: MapNode): Vector3Tuple {
+  const baseScale = normalizeMapScale(node.scale);
+  const scaleMultiplier = getMapModelScaleMultiplier(node.name);
+
+  return [
+    baseScale[0] * scaleMultiplier,
+    baseScale[1] * scaleMultiplier,
+    baseScale[2] * scaleMultiplier,
+  ];
+}
+
+function MapCollisionBoxProxy({
+  node,
+  terrainHeight,
+}: {
+  node: MapNode;
+  terrainHeight: TerrainHeightSampler;
+}): React.JSX.Element | null {
+  const collisionBox = hasMapOctreeCollisionBox(node.name)
+    ? MAP_OCTREE_COLLISION_BOXES[node.name]
+    : null;
+  const normalizedScale = useMemo(() => createScaledMapNodeScale(node), [node]);
+  const position = useMemo(() => {
+    const [x, y, z] = node.position;
+    if (!collisionBox) return [x, y, z] satisfies Vector3Tuple;
+
+    const height = terrainHeight.getHeight(x, z);
+    const bottomOffset = -collisionBox.bottomY * normalizedScale[1];
+
+    return [x, (height ?? y) + bottomOffset, z] satisfies Vector3Tuple;
+  }, [collisionBox, node.position, normalizedScale, terrainHeight]);
+
+  if (!collisionBox) return null;
+
+  return (
+    <group
+      name={`${node.name}-octree-collision-proxy`}
+      position={position}
+      rotation={node.rotation}
+      scale={normalizedScale}
+    >
+      <CollisionBox box={collisionBox} />
+    </group>
+  );
+}
+
+function CharacterCollisionProxies({
+  terrainHeight,
+}: {
+  terrainHeight: TerrainHeightSampler;
+}): React.JSX.Element {
+  return (
+    <>
+      {CHARACTER_IDS.map((id) => (
+        <CharacterCollisionProxy
+          key={`character-collision-${id}`}
+          id={id}
+          terrainHeight={terrainHeight}
+        />
+      ))}
+    </>
+  );
+}
+
+function CharacterCollisionProxy({
+  id,
+  terrainHeight,
+}: {
+  id: CharacterId;
+  terrainHeight: TerrainHeightSampler;
+}): React.JSX.Element {
+  const config = CHARACTER_CONFIGS[id];
+  const state = useCharacterDebugStore((store) => store.characters[id]);
+  const position = useMemo(() => {
+    const [x, y, z] = state.position;
+    const height = terrainHeight.getHeight(x, z);
+
+    return [x, height ?? y, z] satisfies Vector3Tuple;
+  }, [state.position, terrainHeight]);
+
+  return (
+    <group
+      name={`${config.id}-octree-collision-proxy`}
+      position={position}
+      rotation={state.rotation}
+    >
+      <CollisionBox box={CHARACTER_OCTREE_COLLISION_BOX} />
+    </group>
   );
 }

src/world/GameStageContent.tsx

@@ -16,7 +16,13 @@ import { useRepairMissionAnchorStore } from "@/managers/stores/useRepairMissionA
 import type { RepairMissionTriggerConfig } from "@/types/gameplay/repairMission";
 import type { Vector3Tuple } from "@/types/three/three";
 import { getRepairMissionPosition } from "@/utils/gameplay/repairMissionPosition";
-import { EBIKE_WORLD_POSITION } from "@/data/ebike/ebikeConfig";
+import {
+  EBIKE_WORLD_POSITION,
+  EBIKE_WORLD_ROTATION_Y,
+  EBIKE_WORLD_SCALE,
+} from "@/data/ebike/ebikeConfig";
+
+const EBIKE_CONFIG_KEY = `${EBIKE_WORLD_POSITION.join(",")}:${EBIKE_WORLD_ROTATION_Y}:${EBIKE_WORLD_SCALE}`;
 
 interface StageAnchorProps {
   color: string;
@@ -92,7 +98,7 @@ export function GameStageContent(): React.JSX.Element {
       {mainState === "pylon" ? <RepairGamePreloader mission="farm" /> : null}
 
       {mainState === "intro" ? <StageAnchor {...INTRO_STAGE_ANCHOR} /> : null}
-      <Ebike position={EBIKE_WORLD_POSITION} />
+      <Ebike key={EBIKE_CONFIG_KEY} position={EBIKE_WORLD_POSITION} />
       <PylonDownedPylon />
       {isDebugEnabled() ? (
         <>

src/world/Lighting.tsx

@@ -1,10 +1,17 @@
 import { useEffect, useRef } from "react";
 import { useFrame, useThree } from "@react-three/fiber";
-import type { AmbientLight, DirectionalLight, Object3D } from "three";
+import {
+  PCFShadowMap,
+  type AmbientLight,
+  type DirectionalLight,
+  type Object3D,
+  type WebGLRenderer,
+} from "three";
 import {
   AMBIENT_INTENSITY_MAX,
   AMBIENT_INTENSITY_MIN,
   AMBIENT_INTENSITY_STEP,
+  SHADOW_CONFIG,
   SUN_INTENSITY_MAX,
   SUN_INTENSITY_MIN,
   SUN_INTENSITY_STEP,
@@ -18,16 +25,51 @@ import {
   SUN_Z_MIN,
   SUN_Z_STEP,
 } from "@/data/world/lightingConfig";
+import { LA_FABRIK_INTERIOR_LIGHT_POSITION } from "@/data/world/laFabrikConfig";
 import { useDebugFolder } from "@/hooks/debug/useDebugFolder";
+import { useShadowMapWarmup } from "@/hooks/three/useShadowMapWarmup";
 import { LIGHTING_STATE } from "@/world/lightingState";
 
-const SHADOW_MAP_SIZE = 2048;
-const SHADOW_CAMERA_SIZE = 95;
-const SHADOW_CAMERA_NEAR = 0.5;
-const SHADOW_CAMERA_FAR = 300;
+function configureRendererShadows(gl: WebGLRenderer): void {
+  gl.shadowMap.enabled = true;
+  gl.shadowMap.type = PCFShadowMap;
+  gl.shadowMap.autoUpdate = true;
+}
+
+function configureSunShadow(sun: DirectionalLight, sunTarget: Object3D): void {
+  sun.target = sunTarget;
+  sun.shadow.autoUpdate = true;
+  sun.shadow.bias = SHADOW_CONFIG.bias;
+  sun.shadow.normalBias = SHADOW_CONFIG.normalBias;
+  sun.shadow.mapSize.width = SHADOW_CONFIG.mapSize;
+  sun.shadow.mapSize.height = SHADOW_CONFIG.mapSize;
+  sun.shadow.camera.left = -SHADOW_CONFIG.cameraSize;
+  sun.shadow.camera.right = SHADOW_CONFIG.cameraSize;
+  sun.shadow.camera.top = SHADOW_CONFIG.cameraSize;
+  sun.shadow.camera.bottom = -SHADOW_CONFIG.cameraSize;
+  sun.shadow.camera.near = SHADOW_CONFIG.cameraNear;
+  sun.shadow.camera.far = SHADOW_CONFIG.cameraFar;
+  sun.shadow.camera.updateProjectionMatrix();
+}
+
+function placeSunRelativeToCamera(
+  sun: DirectionalLight,
+  sunTarget: Object3D,
+  cameraPosition: { x: number; z: number },
+): void {
+  sunTarget.position.set(cameraPosition.x, 0, cameraPosition.z);
+  sun.position.set(
+    cameraPosition.x + LIGHTING_STATE.sunX,
+    LIGHTING_STATE.sunY,
+    cameraPosition.z + LIGHTING_STATE.sunZ,
+  );
+}
 
 export function Lighting(): React.JSX.Element {
   const camera = useThree((state) => state.camera);
+  const gl = useThree((state) => state.gl);
+  const scene = useThree((state) => state.scene);
+  const invalidate = useThree((state) => state.invalidate);
   const ambient = useRef<AmbientLight>(null);
   const sun = useRef<DirectionalLight>(null);
   const sunTarget = useRef<Object3D>(null);
@@ -35,19 +77,16 @@ export function Lighting(): React.JSX.Element {
   useEffect(() => {
     if (!sun.current || !sunTarget.current) return;
 
-    sun.current.target = sunTarget.current;
-    sun.current.shadow.autoUpdate = true;
-    sun.current.shadow.needsUpdate = true;
-    sun.current.shadow.mapSize.width = SHADOW_MAP_SIZE;
-    sun.current.shadow.mapSize.height = SHADOW_MAP_SIZE;
-    sun.current.shadow.camera.left = -SHADOW_CAMERA_SIZE;
-    sun.current.shadow.camera.right = SHADOW_CAMERA_SIZE;
-    sun.current.shadow.camera.top = SHADOW_CAMERA_SIZE;
-    sun.current.shadow.camera.bottom = -SHADOW_CAMERA_SIZE;
-    sun.current.shadow.camera.near = SHADOW_CAMERA_NEAR;
-    sun.current.shadow.camera.far = SHADOW_CAMERA_FAR;
-    sun.current.shadow.camera.updateProjectionMatrix();
-  }, []);
+    configureRendererShadows(gl);
+    configureSunShadow(sun.current, sunTarget.current);
+    // Prime the sun + target onto the camera before the first shadow pass so
+    // the initial shadow frustum already covers the visible scene; without
+    // this, the first frame is rendered with the default (origin-centered)
+    // frustum and shadows can appear absent until the player moves.
+    placeSunRelativeToCamera(sun.current, sunTarget.current, camera.position);
+  }, [camera, gl]);
+
+  useShadowMapWarmup({ light: sun, scene, gl, invalidate });
 
   useDebugFolder("Lighting", (folder) => {
     folder.addColor(LIGHTING_STATE, "ambientColor").name("Ambient Color");
@@ -87,19 +126,14 @@ export function Lighting(): React.JSX.Element {
       ambient.current.intensity = LIGHTING_STATE.ambientIntensity;
     }
 
-    if (sun.current && sunTarget.current) {
-      sunTarget.current.position.set(camera.position.x, 0, camera.position.z);
-      sunTarget.current.updateMatrixWorld();
-      sun.current.position.set(
-        camera.position.x + LIGHTING_STATE.sunX,
-        LIGHTING_STATE.sunY,
-        camera.position.z + LIGHTING_STATE.sunZ,
-      );
-      sun.current.color.set(LIGHTING_STATE.sunColor);
-      sun.current.intensity = LIGHTING_STATE.sunIntensity;
-      sun.current.updateMatrixWorld();
-      sun.current.shadow.needsUpdate = true;
-    }
+    if (!sun.current || !sunTarget.current) return;
+
+    placeSunRelativeToCamera(sun.current, sunTarget.current, camera.position);
+    sunTarget.current.updateMatrixWorld();
+    sun.current.color.set(LIGHTING_STATE.sunColor);
+    sun.current.intensity = LIGHTING_STATE.sunIntensity;
+    sun.current.updateMatrixWorld();
+    sun.current.shadow.needsUpdate = true;
   });
 
   return (
@@ -121,6 +155,13 @@ export function Lighting(): React.JSX.Element {
         castShadow
       />
       <object3D ref={sunTarget} />
+      <pointLight
+        position={LA_FABRIK_INTERIOR_LIGHT_POSITION}
+        color="#dbeafe"
+        intensity={1.2}
+        distance={14}
+        decay={1.6}
+      />
     </>
   );
 }

src/world/SceneShadowWarmup.tsx

@@ -1,92 +0,0 @@
-import { useEffect, useRef } from "react";
-import { useThree } from "@react-three/fiber";
-import * as THREE from "three";
-
-interface SceneShadowWarmupProps {
-  active: boolean;
-  onReady: () => void;
-  onStarted: () => void;
-}
-
-function markShadowLightForUpdate(object: THREE.Object3D): void {
-  if (
-    !(
-      object instanceof THREE.DirectionalLight ||
-      object instanceof THREE.PointLight ||
-      object instanceof THREE.SpotLight
-    )
-  ) {
-    return;
-  }
-
-  if (!object.castShadow) return;
-
-  object.updateMatrixWorld(true);
-  object.shadow.camera.updateProjectionMatrix();
-  object.shadow.needsUpdate = true;
-}
-
-function forceSceneShadowPass(
-  gl: THREE.WebGLRenderer,
-  scene: THREE.Scene,
-): void {
-  gl.shadowMap.enabled = true;
-  gl.shadowMap.type = THREE.PCFShadowMap;
-  gl.shadowMap.autoUpdate = true;
-  gl.shadowMap.needsUpdate = true;
-
-  scene.updateMatrixWorld(true);
-  scene.traverse((object) => {
-    if (object instanceof THREE.Mesh) {
-      object.updateMatrixWorld(true);
-    }
-
-    markShadowLightForUpdate(object);
-  });
-}
-
-export function SceneShadowWarmup({
-  active,
-  onReady,
-  onStarted,
-}: SceneShadowWarmupProps): null {
-  const gl = useThree((state) => state.gl);
-  const scene = useThree((state) => state.scene);
-  const invalidate = useThree((state) => state.invalidate);
-  const isRunningRef = useRef(false);
-
-  useEffect(() => {
-    if (!active) {
-      isRunningRef.current = false;
-      return undefined;
-    }
-
-    if (isRunningRef.current) return undefined;
-
-    isRunningRef.current = true;
-    onStarted();
-    forceSceneShadowPass(gl, scene);
-    invalidate();
-
-    let firstFrame = 0;
-    let secondFrame = 0;
-
-    firstFrame = window.requestAnimationFrame(() => {
-      forceSceneShadowPass(gl, scene);
-      invalidate();
-
-      secondFrame = window.requestAnimationFrame(() => {
-        forceSceneShadowPass(gl, scene);
-        invalidate();
-        onReady();
-      });
-    });
-
-    return () => {
-      window.cancelAnimationFrame(firstFrame);
-      window.cancelAnimationFrame(secondFrame);
-    };
-  }, [active, gl, invalidate, onReady, onStarted, scene]);
-
-  return null;
-}

src/world/World.tsx

@@ -5,17 +5,22 @@ import {
   PLAYER_SPAWN_POSITION_PHYSICS,
 } from "@/data/player/playerConfig";
 import { useRepairTransitionStore } from "@/managers/stores/useRepairTransitionStore";
+import { LA_FABRIK_INITIAL_LOOK_AT } from "@/data/world/laFabrikConfig";
 import { useCameraMode } from "@/hooks/debug/useCameraMode";
 import { useEnvironmentDebug } from "@/hooks/debug/useEnvironmentDebug";
 import { useMapPerformanceDebug } from "@/hooks/debug/useMapPerformanceDebug";
 import { useCharacterDebug } from "@/hooks/debug/useCharacterDebug";
 import { usePlayerPositionDebug } from "@/hooks/debug/usePlayerPositionDebug";
+import { useDebugVisualsDebug } from "@/hooks/debug/useDebugVisualsDebug";
 import { useSceneMode } from "@/hooks/debug/useSceneMode";
 import { useHandTrackingSnapshot } from "@/hooks/handTracking/useHandTrackingSnapshot";
 import { useWorldSceneLoading } from "@/hooks/world/useWorldSceneLoading";
 import { useGameStore } from "@/managers/stores/useGameStore";
+import { useDebugVisualsStore } from "@/managers/stores/useDebugVisualsStore";
 import { DebugCameraControls } from "@/components/debug/scene/DebugCameraControls";
 import { DebugHelpers } from "@/components/debug/scene/DebugHelpers";
+import { DebugOctreeVisualization } from "@/components/debug/DebugOctreeVisualization";
+import { DebugPlayerModel } from "@/components/debug/DebugPlayerModel";
 import { HandTrackingGlove } from "@/components/three/handTracking/HandTrackingGlove";
 import { Environment } from "@/world/Environment";
 import { GameCinematics } from "@/world/GameCinematics";
@@ -38,10 +43,15 @@ export function World({ onLoadingStateChange }: WorldProps): React.JSX.Element {
   useMapPerformanceDebug();
   useCharacterDebug();
   usePlayerPositionDebug();
+  useDebugVisualsDebug();
 
   const cameraMode = useCameraMode();
   const sceneMode = useSceneMode();
   const mainState = useGameStore((state) => state.mainState);
+  const showDebugPlayerModel = useDebugVisualsStore(
+    (state) => state.showPlayerModel,
+  );
+  const showDebugOctree = useDebugVisualsStore((state) => state.showOctree);
   const { status, usageStatus } = useHandTrackingSnapshot();
   const {
     octree,
@@ -50,9 +60,6 @@ export function World({ onLoadingStateChange }: WorldProps): React.JSX.Element {
     handleGameStageLoaded,
     handleGameMapLoaded,
     handleOctreeReady,
-    handleShadowWarmupReady,
-    handleShadowWarmupStarted,
-    shouldWarmUpShadows,
   } = useWorldSceneLoading({ sceneMode, onLoadingStateChange });
   // Capture the spawn position once on mount via a ref so it never changes
   // mid-session (spawnPosition is reactive in Player and would re-spawn the
@@ -88,15 +95,15 @@ export function World({ onLoadingStateChange }: WorldProps): React.JSX.Element {
 
   return (
     <>
-      <Environment
-        shadowWarmup={{
-          active: shouldWarmUpShadows,
-          onReady: handleShadowWarmupReady,
-          onStarted: handleShadowWarmupStarted,
-        }}
-      />
+      <Environment />
       <Lighting />
       <DebugHelpers />
+      {showDebugOctree ? <DebugOctreeVisualization octree={octree} /> : null}
+      {showDebugPlayerModel ? (
+        <Suspense fallback={null}>
+          <DebugPlayerModel />
+        </Suspense>
+      ) : null}
       {showHandTrackingGloves ? (
         <Suspense fallback={null}>
           <HandTrackingGlove handedness="left" />
@@ -115,16 +122,22 @@ export function World({ onLoadingStateChange }: WorldProps): React.JSX.Element {
           {showGameStage ? (
             <Physics>
               <GameStageLoaded onLoaded={handleGameStageLoaded} />
-              <GameStageContent />
+              <Suspense fallback={null}>
+                <GameStageContent />
+              </Suspense>
             </Physics>
           ) : null}
           {spawnPlayer ? (
-            <>
+            <Suspense fallback={null}>
               <GameMusic />
               {mainState === "outro" ? <GameCinematics /> : null}
               {mainState !== "intro" ? <GameDialogues /> : null}
-              <Player octree={octree} spawnPosition={playerSpawnPosition} />
-            </>
+              <Player
+                initialLookAt={LA_FABRIK_INITIAL_LOOK_AT}
+                octree={octree}
+                spawnPosition={playerSpawnPosition}
+              />
+            </Suspense>
           ) : null}
         </>
       ) : (

src/world/grass/GrassPatch.tsx

@@ -8,6 +8,11 @@ import {
   GRASS_COLORS,
   GRASS_CONFIG,
 } from "@/data/world/grassConfig";
+import {
+  LA_FABRIK_CENTER,
+  LA_FABRIK_HALF_EXTENTS,
+  LA_FABRIK_ROTATION_Y,
+} from "@/data/world/laFabrikConfig";
 import {
   grassFragmentShader,
   grassVertexShader,
@@ -169,6 +174,17 @@ function createGrassMaterial(
       uMaxBladeHeight: { value: GRASS_CONFIG.maxBladeHeight },
       uRandomHeightAmount: { value: GRASS_CONFIG.randomHeightAmount },
       uSurfaceOffset: { value: GRASS_CONFIG.surfaceOffset },
+      uLaFabrikCenter: {
+        value: new THREE.Vector2(LA_FABRIK_CENTER[0], LA_FABRIK_CENTER[2]),
+      },
+      uLaFabrikHalfExtents: {
+        value: new THREE.Vector2(
+          LA_FABRIK_HALF_EXTENTS.x,
+          LA_FABRIK_HALF_EXTENTS.z,
+        ),
+      },
+      uLaFabrikRotation: { value: LA_FABRIK_ROTATION_Y },
+      uLaFabrikNoGrassFeather: { value: 1.4 },
     },
   });
 }

src/world/grass/grassShaders.ts

@@ -43,6 +43,10 @@ export const grassVertexShader = /* glsl */ `
   uniform float uMaxBladeHeight;
   uniform float uRandomHeightAmount;
   uniform float uSurfaceOffset;
+  uniform vec2 uLaFabrikCenter;
+  uniform vec2 uLaFabrikHalfExtents;
+  uniform float uLaFabrikRotation;
+  uniform float uLaFabrikNoGrassFeather;
 
   float random(vec2 st) {
     return fract(sin(dot(st.xy, vec2(12.9898, 78.233))) * 43758.5453123);
@@ -132,6 +136,18 @@ export const grassVertexShader = /* glsl */ `
       smoothstep(uBoundingBoxMax.z, uBoundingBoxMax.z - 2.0, worldPos.z);
     heightModifier *= edgeFade * mix(0.45, 1.0, clumpMask);
 
+    vec2 laFabrikDelta = worldPos.xz - uLaFabrikCenter;
+    float laFabrikCos = cos(-uLaFabrikRotation);
+    float laFabrikSin = sin(-uLaFabrikRotation);
+    vec2 laFabrikLocal = vec2(
+      laFabrikDelta.x * laFabrikCos - laFabrikDelta.y * laFabrikSin,
+      laFabrikDelta.x * laFabrikSin + laFabrikDelta.y * laFabrikCos
+    );
+    vec2 laFabrikDistance = abs(laFabrikLocal) - uLaFabrikHalfExtents;
+    float laFabrikOutsideDistance = max(laFabrikDistance.x, laFabrikDistance.y);
+    float laFabrikGrassMask = smoothstep(0.0, uLaFabrikNoGrassFeather, laFabrikOutsideDistance);
+    heightModifier *= laFabrikGrassMask;
+
     float sideFactor = (color.r == 0.1) ? 1.0 : (color.b == 0.1) ? -1.0 : 0.0;
     float tipFactor = color.g;
     float width = smoothstep(0.02, uMaxBladeHeight * 0.85, heightModifier) * uBladeWidth * bladeVisibility;

src/world/player/Player.tsx

@@ -7,10 +7,12 @@ import { PlayerController } from "@/world/player/PlayerController";
 
 interface PlayerProps {
   octree: Octree | null;
+  initialLookAt?: Vector3Tuple | undefined;
   spawnPosition: Vector3Tuple;
 }
 
 export function Player({
+  initialLookAt,
   spawnPosition,
   octree,
 }: PlayerProps): React.JSX.Element {
@@ -18,12 +20,17 @@ export function Player({
 
   useLayoutEffect(() => {
     camera.position.set(...spawnPosition);
-  }, [camera, spawnPosition]);
+    if (initialLookAt) camera.lookAt(...initialLookAt);
+  }, [camera, initialLookAt, spawnPosition]);
 
   return (
     <>
       <PlayerCamera />
-      <PlayerController octree={octree} spawnPosition={spawnPosition} />
+      <PlayerController
+        initialLookAt={initialLookAt}
+        octree={octree}
+        spawnPosition={spawnPosition}
+      />
     </>
   );
 }

src/world/player/PlayerController.tsx

@@ -75,6 +75,7 @@ const PLAYER_FLOOR_NORMAL_MIN = 0.15;
 const PLAYER_GROUND_SNAP_DISTANCE = 0.22;
 
 interface PlayerControllerProps {
+  initialLookAt?: Vector3Tuple | undefined;
   octree: Octree | null;
   spawnPosition: Vector3Tuple;
 }
@@ -89,6 +90,7 @@ const _collisionCorrection = new THREE.Vector3();
 function resetPlayerCapsule(
   capsule: Capsule,
   spawnPosition: Vector3Tuple,
+  initialLookAt: Vector3Tuple | undefined,
   camera: THREE.Camera,
   velocity: THREE.Vector3,
 ): void {
@@ -100,6 +102,7 @@ function resetPlayerCapsule(
   capsule.end.set(...spawnPosition);
   velocity.set(0, 0, 0);
   camera.position.copy(capsule.end);
+  if (initialLookAt) camera.lookAt(...initialLookAt);
 }
 
 function createSpawnCapsule(spawnPosition: Vector3Tuple): Capsule {
@@ -145,6 +148,7 @@ function getCapsuleFootY(capsule: Capsule): number {
 }
 
 export function PlayerController({
+  initialLookAt,
   octree,
   spawnPosition,
 }: PlayerControllerProps): null {
@@ -234,6 +238,7 @@ export function PlayerController({
     resetPlayerCapsule(
       capsule.current,
       spawnPosition,
+      initialLookAt,
       camera,
       velocity.current,
     );
@@ -241,7 +246,7 @@ export function PlayerController({
     onFloor.current = false;
     wantsJump.current = false;
     initializedRef.current = true;
-  }, [camera, spawnPosition]);
+  }, [camera, initialLookAt, spawnPosition]);
 
   useEffect(() => {
     movementLockedRef.current = movementLocked;
@@ -339,6 +344,7 @@ export function PlayerController({
         resetPlayerCapsule(
           capsule.current,
           spawnPosition,
+          initialLookAt,
           camera,
           velocity.current,
         );

src/world/vegetation/VegetationSystem.tsx

@@ -16,6 +16,7 @@ import {
   VEGETATION_TYPES,
   type VegetationType,
 } from "@/data/world/vegetationConfig";
+import { isInsideLaFabrikFootprint } from "@/data/world/laFabrikConfig";
 import { createWorldInstanceChunks } from "@/utils/world/chunkInstances";
 
 interface VegetationSystemProps {
@@ -60,6 +61,15 @@ function createVegetationChunks(
   });
 }
 
+function removeLaFabrikVegetation(
+  instances: VegetationInstance[],
+): VegetationInstance[] {
+  return instances.filter((instance) => {
+    const [x, , z] = instance.position;
+    return !isInsideLaFabrikFootprint(x, z, 1.2);
+  });
+}
+
 export function VegetationSystem({
   onlyMapName = null,
   streaming = true,
@@ -90,7 +100,10 @@ export function VegetationSystem({
       const entry = data.get(config.mapName);
       if (!entry || entry.instances.length === 0) return [];
 
-      return createVegetationChunks(type, entry.instances);
+      const instances = removeLaFabrikVegetation(entry.instances);
+      if (instances.length === 0) return [];
+
+      return createVegetationChunks(type, instances);
     });
   }, [data, groups, models, onlyMapName]);