diff --git a/src/pages/XRSession.tsx b/src/pages/XRSession.tsx
index f937d12..e79550e 100644
--- a/src/pages/XRSession.tsx
+++ b/src/pages/XRSession.tsx
@@ -17,6 +17,7 @@ import { findNearestVertex } from '@/components/three/SmartMeasure';
 import { XRHitTestPlacement } from '@/components/three/XRHitTestPlacement';
 import { XRGrabbable } from '@/components/three/XRGrabbable';
 import { XRControllerMeasure } from '@/components/three/XRControllerMeasure';
+import { ControllerLocomotion } from '@/components/three/ControllerLocomotion';
 // DEVKIT: remove these imports + all `// DEVKIT:` blocks below to strip devkit
 import { useDevKit } from '@/devkit/useDevKit';
 import { DevPanel } from '@/devkit/DevPanel';
@@ -470,9 +471,13 @@ const XRSession = () => {
   const [freeMove, setFreeMove] = useState(true);
   const [placementMode, setPlacementMode] = useState(true); // start in placement mode
   const [snapToPlanes, setSnapToPlanes] = useState(true);
-  const [allowScale, setAllowScale] = useState(false);
+  // Zoom por grip duplo é SEMPRE ligado (parte do mapeamento padrão).
+  const allowScale = true;
+  const setAllowScale = () => {};
   const [liveCode, setLiveCode] = useState<string | null>(null);
   const [liveViewers, setLiveViewers] = useState(0);
+  // Rig que envolve <XROrigin/> — locomoção por joystick escreve aqui.
+  const rigRef = useRef<THREE.Group>(null);
   // DEVKIT: simXR forces in-XR rendering on desktop without a real WebXR session
   const devkit = useDevKit();
   const [simXR, setSimXR] = useState(false);
@@ -569,7 +574,9 @@ const XRSession = () => {
             <directionalLight position={[3, 5, 3]} intensity={1.2} />
             <directionalLight position={[-3, 3, -3]} intensity={0.4} />
 
-            <XROrigin />
+            <group ref={rigRef}>
+              <XROrigin />
+            </group>
 
             {effectiveInXR ? (
               <>