diff --git a/Source/Editor/Editor.cs b/Source/Editor/Editor.cs
index 29549977e..b8df413e1 100644
--- a/Source/Editor/Editor.cs
+++ b/Source/Editor/Editor.cs
@@ -1392,23 +1392,6 @@ namespace FlaxEditor
         }
 
         internal void Internal_GetGameWindowSize(out Float2 result)
-        {
-            result = new Float2(1280, 720);
-            var gameWin = Windows.GameWin;
-            if (gameWin?.Root?.RootWindow is WindowRootControl root)
-            {
-                // Handle case when Game window is not selected in tab view
-                var dockedTo = gameWin.ParentDockPanel;
-                if (dockedTo != null && dockedTo.SelectedTab != gameWin && dockedTo.SelectedTab != null)
-                    result = dockedTo.SelectedTab.Size * root.DpiScale;
-                else
-                    result = gameWin.Size * root.DpiScale;
-
-                result = Float2.Round(result);
-            }
-        }
-
-        internal void Internal_GetGameWindowViewportSize(out Float2 result)
         {
             result = new Float2(1280, 720);
             var gameWin = Windows.GameWin;
diff --git a/Source/Editor/Managed/ManagedEditor.cpp b/Source/Editor/Managed/ManagedEditor.cpp
index 5b45ea7d6..fdabf9056 100644
--- a/Source/Editor/Managed/ManagedEditor.cpp
+++ b/Source/Editor/Managed/ManagedEditor.cpp
@@ -457,24 +457,6 @@ Float2 ManagedEditor::GetGameWindowSize()
     return Float2::Zero;
 }
 
-Float2 ManagedEditor::GetGameWindowViewportSize()
-{
-    if (HasManagedInstance())
-    {
-        if (Internal_GetGameWindowSize == nullptr)
-        {
-            Internal_GetGameWindowSize = GetClass()->GetMethod("Internal_GetGameWindowViewportSize", 1);
-            ASSERT(Internal_GetGameWindowSize);
-        }
-        Float2 size;
-        void* params[1];
-        params[0] = &size;
-        Internal_GetGameWindowSize->Invoke(GetManagedInstance(), params, nullptr);
-        return size;
-    }
-    return Float2::Zero;
-}
-
 bool ManagedEditor::OnAppExit()
 {
     if (!HasManagedInstance())
diff --git a/Source/Editor/Managed/ManagedEditor.h b/Source/Editor/Managed/ManagedEditor.h
index cfacce2da..36fc0c234 100644
--- a/Source/Editor/Managed/ManagedEditor.h
+++ b/Source/Editor/Managed/ManagedEditor.h
@@ -133,12 +133,6 @@ public:
     /// <returns>The size.</returns>
     Float2 GetGameWindowSize();
 
-    /// <summary>
-    /// Gets the size of the game window viewport output.
-    /// </summary>
-    /// <returns>The size.</returns>
-    Float2 GetGameWindowViewportSize();
-
     /// <summary>
     /// Called when application code calls exit. Editor may end play mode or exit normally.
     /// </summary>
diff --git a/Source/Engine/Level/Actors/Camera.cpp b/Source/Engine/Level/Actors/Camera.cpp
index 3e19403cd..ea161c38a 100644
--- a/Source/Engine/Level/Actors/Camera.cpp
+++ b/Source/Engine/Level/Actors/Camera.cpp
@@ -189,7 +189,7 @@ Viewport Camera::GetViewport() const
 #if USE_EDITOR
     // Editor
     if (Editor::Managed)
-        result.Size = Editor::Managed->GetGameWindowViewportSize();
+        result.Size = Editor::Managed->GetGameWindowSize();
 #else
 	// game
 	auto mainWin = Engine::MainWindow;