diff --git a/cpp/modmesh/view/R3DWidget.hpp b/cpp/modmesh/view/R3DWidget.hpp
index 01e346a0..af63941a 100644
--- a/cpp/modmesh/view/R3DWidget.hpp
+++ b/cpp/modmesh/view/R3DWidget.hpp
@@ -60,6 +60,45 @@ class ROrbitCameraController
     using Qt3DExtras::QOrbitCameraController::QOrbitCameraController;
 }; /* end class ROrbitCameraController */
 
+class RCustomCameraController
+    : public Qt3DExtras::QAbstractCameraController
+{
+    Q_OBJECT
+public:
+    explicit RCustomCameraController(Qt3DCore::QNode * parent = nullptr)
+        : QAbstractCameraController(parent)
+    {
+    }
+    ~RCustomCameraController() {}
+
+private:
+    void moveCamera(const QAbstractCameraController::InputState & state, float dt) override
+    {
+        Qt3DRender::QCamera * theCamera = camera();
+
+        if (theCamera == nullptr)
+            return;
+
+        theCamera->translate(QVector3D(state.txAxisValue * linearSpeed(),
+                                       state.tyAxisValue * linearSpeed(),
+                                       state.tzAxisValue * linearSpeed()) *
+                             dt);
+        if (state.leftMouseButtonActive)
+        {
+            float theLookSpeed = lookSpeed();
+            if (state.shiftKeyActive)
+            {
+                theLookSpeed *= 0.2f;
+            }
+
+            const QVector3D upVector(0.0f, 1.0f, 0.0f);
+
+            theCamera->pan(state.rxAxisValue * theLookSpeed * dt, upVector);
+            theCamera->tilt(state.ryAxisValue * theLookSpeed * dt);
+        }
+    };
+}; /* end class RCustomCameraController */
+
 class RScene
     : public Qt3DCore::QEntity
 {
@@ -85,6 +124,8 @@ class RScene
 
     void setFirstPersonCameraController() { setCameraController(new RFirstPersonCameraController(this)); }
 
+    void setCustomCameraController() { setCameraController(new RCustomCameraController(this)); }
+
 private:
 
     Qt3DExtras::QAbstractCameraController * m_controller = nullptr;
diff --git a/cpp/modmesh/view/RManager.cpp b/cpp/modmesh/view/RManager.cpp
index 2783ab8e..90f9f49a 100644
--- a/cpp/modmesh/view/RManager.cpp
+++ b/cpp/modmesh/view/RManager.cpp
@@ -193,15 +193,39 @@ void RManager::setUpMenu()
                 }
             });
 
+        auto * use_custom_camera = new RAction(
+            QString("Use Custom Camera Controller"),
+            QString("Use Custom Camera Controller"),
+            [this]()
+            {
+                qDebug() << "Use Custom Camera Controller (menu demo)";
+                for (auto subwin : m_mdiArea->subWindowList())
+                {
+                    try
+                    {
+                        R3DWidget * viewer = dynamic_cast<R3DWidget *>(subwin->widget());
+                        viewer->scene()->setCustomCameraController();
+                        viewer->scene()->controller()->setCamera(viewer->camera());
+                    }
+                    catch (std::bad_cast & e)
+                    {
+                        std::cerr << e.what() << std::endl;
+                    }
+                }
+            });
+
         auto * cameraGroup = new QActionGroup(m_mainWindow);
         cameraGroup->addAction(use_orbit_camera);
         cameraGroup->addAction(use_fps_camera);
+        cameraGroup->addAction(use_custom_camera);
         use_orbit_camera->setCheckable(true);
         use_fps_camera->setCheckable(true);
+        use_custom_camera->setCheckable(true);
         use_orbit_camera->setChecked(true);
 
         m_cameraMenu->addAction(use_orbit_camera);
         m_cameraMenu->addAction(use_fps_camera);
+        m_cameraMenu->addAction(use_custom_camera);
     }
 
     {