diff --git a/src/pages/XRSession.tsx b/src/pages/XRSession.tsx
index 77bbc85..d87b200 100644
--- a/src/pages/XRSession.tsx
+++ b/src/pages/XRSession.tsx
@@ -491,28 +491,51 @@ const XRSession = () => {
 
             <XROrigin />
 
-            <XRHitTestPlacement
-              placementMode={placementMode}
-              snapToPlanes={snapToPlanes}
-              onPlace={() => {
-                setPlacementMode(false);
-                toast.success('Modelo posicionado na superfície!');
-              }}
-            >
-              <XRGrabbable
-                allowScale={allowScale}
-                onGrabStart={() => {
-                  if (placementMode) setPlacementMode(false);
-                }}
-              >
-                <XRModel url={model.url} />
-              </XRGrabbable>
-            </XRHitTestPlacement>
+            {inXR ? (
+              <>
+                {/* In XR: hit-test placement → grab wrapper → model */}
+                <XRHitTestPlacement
+                  placementMode={placementMode}
+                  snapToPlanes={snapToPlanes}
+                  onPlace={() => {
+                    setPlacementMode(false);
+                    toast.success('Modelo posicionado na superfície!');
+                  }}
+                >
+                  <XRGrabbable
+                    allowScale={allowScale}
+                    onGrabStart={() => {
+                      if (placementMode) setPlacementMode(false);
+                    }}
+                  >
+                    <XRModel url={model.url} />
+                  </XRGrabbable>
+                </XRHitTestPlacement>
+
+                <XRMeasurementOverlay />
+                <ControllerFineTuning freeMove={freeMove} />
+                <XRDebugHud />
+              </>
+            ) : (
+              <>
+                {/* Desktop preview (no headset): show model with OrbitControls */}
+                <group position={[0, 0, 0]}>
+                  <XRModel url={model.url} />
+                </group>
+                <XRMeasurementOverlay />
+                <OrbitControls
+                  makeDefault
+                  enableDamping
+                  dampingFactor={0.1}
+                  minDistance={0.05}
+                  maxDistance={50}
+                  target={[0, 0, 0]}
+                />
+              </>
+            )}
 
-            <XRMeasurementOverlay />
             <XRSnapHandler />
             <XRGrid />
-            <ControllerFineTuning freeMove={freeMove} />
           </XR>
         </Canvas>