diff --git a/examples/PhysicsPlayground/main.cpp b/examples/PhysicsPlayground/main.cpp
index dd6218403..90451d989 100644
--- a/examples/PhysicsPlayground/main.cpp
+++ b/examples/PhysicsPlayground/main.cpp
@@ -272,7 +272,11 @@ int main()
 
 	NazaraSlot(Nz::WindowEventHandler, OnMouseMoved, cameraMove);
 	NazaraSlot(Nz::WindowEventHandler, OnMouseMoved, grabbedObjectMove);
-	//std::optional<Nz::PivotConstraint3D> grabConstraint;
+#if USE_JOLT
+	std::optional<Nz::JoltPivotConstraint3D> grabConstraint;
+#else
+	std::optional<Nz::BulletPivotConstraint3D> grabConstraint;
+#endif
 
 	auto mouseMoveCallback = [&](const Nz::WindowEventHandler*, const Nz::WindowEvent::MouseMoveEvent& event)
 	{
@@ -299,21 +303,20 @@ int main()
 			Nz::Vector3f from = cameraComponent.Unproject({ float(event.x), float(event.y), 0.f });
 			Nz::Vector3f to = cameraComponent.Unproject({ float(event.x), float(event.y), 1.f });
 
+#if USE_JOLT
 			Nz::JoltPhysics3DSystem::RaycastHit lastHitInfo;
-			auto callback = [&](const Nz::JoltPhysics3DSystem::RaycastHit& hitInfo) -> std::optional<float>
+#else
+			Nz::BulletPhysics3DSystem::RaycastHit lastHitInfo;
+#endif
+			auto callback = [&](const decltype(lastHitInfo)& hitInfo) -> std::optional<float>
 			{
 				if (hitInfo.hitEntity == boxEntity)
 				{
 					Nz::Vector3f dirToCenter = Nz::Vector3f::Zero() - hitInfo.hitPosition;
 					dirToCenter.Normalize();
 
-#ifdef USE_JOLT
-					if (Nz::Vector3f::DotProduct(dirToCenter, (hitInfo.hitPosition - from).Normalize()) < 0.f)
-						return std::nullopt;
-#else
 					if (Nz::Vector3f::DotProduct(dirToCenter, hitInfo.hitNormal) < 0.f)
 						return std::nullopt;
-#endif
 				}
 
 				lastHitInfo = hitInfo;
@@ -325,7 +328,7 @@ int main()
 			{
 				if (lastHitInfo.hitBody && lastHitInfo.hitEntity != boxEntity)
 				{
-					//grabConstraint.emplace(*lastHitInfo.hitBody, lastHitInfo.hitPosition);
+					grabConstraint.emplace(*lastHitInfo.hitBody, lastHitInfo.hitPosition);
 					//grabConstraint->SetImpulseClamp(30.f);
 
 					grabbedObjectMove.Connect(eventHandler.OnMouseMoved, [&, body = lastHitInfo.hitBody, distance = Nz::Vector3f::Distance(from, lastHitInfo.hitPosition)](const Nz::WindowEventHandler*, const Nz::WindowEvent::MouseMoveEvent& event)
@@ -334,7 +337,7 @@ int main()
 						Nz::Vector3f to = cameraComponent.Unproject({ float(event.x), float(event.y), 1.f });
 
 						Nz::Vector3f newPosition = from + (to - from).Normalize() * distance;
-						//grabConstraint->SetSecondAnchor(newPosition);
+						grabConstraint->SetSecondAnchor(newPosition);
 					});
 				}
 				else
@@ -349,7 +352,7 @@ int main()
 	{
 		if (event.button == Nz::Mouse::Left)
 		{
-			//grabConstraint.reset();
+			grabConstraint.reset();
 			cameraMove.Disconnect();
 			grabbedObjectMove.Disconnect();
 		}