diff --git a/apps/SceneViewer3D/_DSceneViewerMain.cpp b/apps/SceneViewer3D/_DSceneViewerMain.cpp
index 4e65081369..0e571cad18 100644
--- a/apps/SceneViewer3D/_DSceneViewerMain.cpp
+++ b/apps/SceneViewer3D/_DSceneViewerMain.cpp
@@ -320,6 +320,7 @@ const long _DSceneViewerFrame::ID_BUTTON5 = wxNewId();
 const long _DSceneViewerFrame::ID_STATICLINE2 = wxNewId();
 const long _DSceneViewerFrame::ID_BUTTON6 = wxNewId();
 const long _DSceneViewerFrame::ID_BUTTON7 = wxNewId();
+const long _DSceneViewerFrame::ID_BUTTON_SHADOWS = wxNewId();
 const long _DSceneViewerFrame::ID_BUTTON8 = wxNewId();
 const long _DSceneViewerFrame::ID_BUTTON9 = wxNewId();
 const long _DSceneViewerFrame::ID_STATICLINE3 = wxNewId();
@@ -480,6 +481,17 @@ _DSceneViewerFrame::_DSceneViewerFrame(wxWindow* parent, wxWindowID id) : maxv(0
       wxArtProvider::GetBitmap(wxART_MAKE_ART_ID_FROM_STR(_T("wxART_TICK_MARK")), wxART_TOOLBAR));
   btnOrtho->SetMargins(wxSize(5, 5));
   FlexGridSizer2->Add(btnOrtho, 1, wxEXPAND, 1);
+
+  btnShadows = new wxCustomButton(
+      this, ID_BUTTON_SHADOWS, _(" Shadows "),
+      wxArtProvider::GetBitmap(wxART_MAKE_ART_ID_FROM_STR(_T("wxART_TICK_MARK")), wxART_TOOLBAR),
+      wxDefaultPosition, wxDefaultSize, wxCUSTBUT_TOGGLE | wxCUSTBUT_BOTTOM, wxDefaultValidator,
+      _T("ID_BUTTON_SHADOWS"));
+  btnShadows->SetBitmapDisabled(
+      wxArtProvider::GetBitmap(wxART_MAKE_ART_ID_FROM_STR(_T("wxART_TICK_MARK")), wxART_TOOLBAR));
+  btnShadows->SetMargins(wxSize(5, 5));
+  FlexGridSizer2->Add(btnShadows, 1, wxEXPAND, 1);
+
   btnAutoplay = new wxCustomButton(
       this, ID_BUTTON8, _("  Autoplay  "),
       wxArtProvider::GetBitmap(wxART_MAKE_ART_ID_FROM_STR(_T("wxART_REMOVABLE")), wxART_TOOLBAR),
@@ -657,6 +669,7 @@ _DSceneViewerFrame::_DSceneViewerFrame(wxWindow* parent, wxWindowID id) : maxv(0
   Bind(wxEVT_BUTTON, &svf::OnReload, this, ID_BUTTON5);
   Bind(wxEVT_BUTTON, &svf::OnMenuOptions, this, ID_BUTTON6);
   Bind(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, &svf::OnbtnOrthoClicked, this, ID_BUTTON7);
+  Bind(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, &svf::OnbtnShadowsClicked, this, ID_BUTTON_SHADOWS);
   Bind(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, &svf::OnbtnAutoplayClicked, this, ID_BUTTON8);
   Bind(wxEVT_COMMAND_TOGGLEBUTTON_CLICKED, &svf::OnBtnRecordClicked, this, ID_BUTTON9);
   Bind(wxEVT_BUTTON, &svf::OnAbout, this, ID_BUTTON10);
@@ -923,13 +936,7 @@ void _DSceneViewerFrame::OntimLoadFileCmdLineTrigger(wxTimerEvent&)
   }
 
   // Enable shadows?
-  if (0)
-  {
-    if (auto vw = m_canvas->getOpenGLSceneRef()->getViewport(); vw)
-    {
-      vw->enableShadowCasting();
-    }
-  }
+  applyShadowsOptions();
 }
 
 void _DSceneViewerFrame::OnbtnAutoplayClicked(wxCommandEvent& event)
@@ -1048,6 +1055,24 @@ void _DSceneViewerFrame::OnbtnOrthoClicked(wxCommandEvent& event)
   m_canvas->Refresh(false);
 }
 
+void _DSceneViewerFrame::OnbtnShadowsClicked(wxCommandEvent& event)
+{
+  applyShadowsOptions();
+  m_canvas->Refresh(false);
+}
+
+void _DSceneViewerFrame::applyShadowsOptions()
+{
+  bool shadowsEnabled = btnShadows->GetValue();
+  auto scene = m_canvas->getOpenGLSceneRef();
+  if (!scene) return;
+
+  auto vw = scene->getViewport();
+  if (!vw) return;
+
+  vw->enableShadowCasting(shadowsEnabled);
+}
+
 void _DSceneViewerFrame::OnReload(wxCommandEvent& event)
 {
   if (fileExists(loadedFileName)) loadFromFile(loadedFileName);
diff --git a/apps/SceneViewer3D/_DSceneViewerMain.h b/apps/SceneViewer3D/_DSceneViewerMain.h
index 3fc110ab8a..23dfae6d9d 100644
--- a/apps/SceneViewer3D/_DSceneViewerMain.h
+++ b/apps/SceneViewer3D/_DSceneViewerMain.h
@@ -76,6 +76,7 @@ class _DSceneViewerFrame : public wxFrame
   void OnClose(wxCloseEvent& event);
   void OnBtnRecordClicked(wxCommandEvent& event);
   void OnbtnOrthoClicked(wxCommandEvent& event);
+  void OnbtnShadowsClicked(wxCommandEvent& event);
   void OnReload(wxCommandEvent& event);
   void OnInsert3DS(wxCommandEvent& event);
   void OnMenuSave(wxCommandEvent& event);
@@ -104,6 +105,8 @@ class _DSceneViewerFrame : public wxFrame
 
   void OntimAutoplay(wxTimerEvent& event);
 
+  void applyShadowsOptions();
+
   //(*Identifiers(_DSceneViewerFrame)
   static const long ID_BUTTON1;
   static const long ID_BUTTON2;
@@ -114,6 +117,7 @@ class _DSceneViewerFrame : public wxFrame
   static const long ID_STATICLINE2;
   static const long ID_BUTTON6;
   static const long ID_BUTTON7;
+  static const long ID_BUTTON_SHADOWS;
   static const long ID_BUTTON8;
   static const long ID_BUTTON9;
   static const long ID_STATICLINE3;
@@ -187,6 +191,7 @@ class _DSceneViewerFrame : public wxFrame
   wxMenuItem* mnuSelectionScale;
   wxMenuItem* mnuImportLAS;
   wxCustomButton* btnOrtho;
+  wxCustomButton* btnShadows;
   wxStatusBar* StatusBar1;
   wxMenuItem* MenuItem6;
   wxStaticLine* StaticLine3;
diff --git a/doc/source/doxygen-docs/changelog.md b/doc/source/doxygen-docs/changelog.md
index 35c6c45efb..4c78c14b95 100644
--- a/doc/source/doxygen-docs/changelog.md
+++ b/doc/source/doxygen-docs/changelog.md
@@ -1,6 +1,8 @@
 \page changelog Change Log
 
 # Version 2.14.1: UNRELEASED
+- Changes in apps:
+  - SceneViewer3D: New button to enable shadow casting.
 - Changes in libraries:
   - \ref mrpt_opengl_grp:
     - New method mrpt::opengl::CAssimpModel::split_triangles_rendering_bbox() to enable a new feature in Assimp 3D models: splitting into smaller triangle sets for correct z-ordering of semitransparent objects; e.g. required for trees with masked leaves.