diff --git a/extensions/common/directx/d3d_display.cpp b/extensions/common/directx/d3d_display.cpp
index bfc7a0e013..f388feaa06 100644
--- a/extensions/common/directx/d3d_display.cpp
+++ b/extensions/common/directx/d3d_display.cpp
@@ -33,7 +33,7 @@ namespace ace {
             return result;
         }
 
-        d3d_display::d3d_display() : _fullscreen(false) {}
+        d3d_display::d3d_display() : _fullscreen(false), _leftMouseButton(false) {}
         d3d_display::~d3d_display() {}
 
         bool d3d_display::render_thread(uint32_t w, uint32_t h, bool f) {
@@ -390,12 +390,18 @@ namespace ace {
                             break;
                         }
                     }
-                }
-                else if (raw->header.dwType == RIM_TYPEMOUSE) {
+                } else if (raw->header.dwType == RIM_TYPEMOUSE) {
                     RAWMOUSE mouseCurrState = raw->data.mouse;
 
-                    if ((mouseCurrState.lLastX != _last_mouse_state.lLastY) || (mouseCurrState.lLastX != _last_mouse_state.lLastY))
-                    {
+
+                    if (raw->data.mouse.ulButtons & RI_MOUSE_LEFT_BUTTON_DOWN) {
+                        _leftMouseButton = true;
+                    }
+                    if(raw->data.mouse.ulButtons & RI_MOUSE_LEFT_BUTTON_UP) {
+                        _leftMouseButton = false;
+                    }
+                    
+                    if (((mouseCurrState.lLastX != _last_mouse_state.lLastY) || (mouseCurrState.lLastX != _last_mouse_state.lLastY)) && _leftMouseButton) {
                         _camera.camYaw += mouseCurrState.lLastX * 0.005f;
                         _camera.camPitch += mouseCurrState.lLastY * 0.005f;
                         _last_mouse_state = mouseCurrState;
diff --git a/extensions/common/directx/d3d_display.hpp b/extensions/common/directx/d3d_display.hpp
index b10e8ef070..59b06e40e4 100644
--- a/extensions/common/directx/d3d_display.hpp
+++ b/extensions/common/directx/d3d_display.hpp
@@ -109,6 +109,7 @@ namespace ace {
             DirectX::XMFLOAT4X4                 _View;
             DirectX::XMFLOAT4X4                 _Projection;
 
+            bool                                _leftMouseButton;
             RAWMOUSE                            _last_mouse_state;
             camera_movement                     _camera;
 
diff --git a/extensions/vd/debug/penetration_display.cpp b/extensions/vd/debug/penetration_display.cpp
index 3f57e209fb..ae0666d843 100644
--- a/extensions/vd/debug/penetration_display.cpp
+++ b/extensions/vd/debug/penetration_display.cpp
@@ -79,6 +79,13 @@ namespace ace {
                 const XMVECTORF32 yaxis = { 0.f, 0.f, 20.f };
                 DrawGrid(*_Batch, xaxis, yaxis, g_XMZero, 20, 20, Colors::Gray);
 
+                // Draw the red line for nou
+                _Batch->Begin();
+                const XMVECTORF32 v1 = { 0.f, 100.f, 0.f };
+                const XMVECTORF32 v2 = { 0.f, -100.f, 0.f };
+                _Batch->DrawLine(VertexPositionColor(v1, Colors::Red), VertexPositionColor(v2, Colors::Red));
+                _Batch->End();
+
                 if (_active_vehicle) {
                     DrawObject(_active_vehicle->fire_lod, *_Batch, *_active_vehicle->object, Colors::Gray);
                 }