Merge branch 'FlaxEngine:master' into add_spline_edit_options

Source/Editor/Content/GUI/ContentView.DragDrop.cs

@@ -45,8 +45,14 @@ namespace FlaxEditor.Content.GUI
 
         private void ImportActors(DragActors actors, ContentFolder location)
         {
-            // Use only the first actor
-            Editor.Instance.Prefabs.CreatePrefab(actors.Objects[0].Actor);
+            foreach (var actorNode in actors.Objects)
+            {
+                var actor = actorNode.Actor;
+                if (actors.Objects.Contains(actorNode.ParentNode as ActorNode))
+                    continue;
+
+                Editor.Instance.Prefabs.CreatePrefab(actor, false);
+            }
         }
 
         /// <inheritdoc />

Source/Editor/CustomEditors/Editors/AssetRefEditor.cs

@@ -33,7 +33,12 @@ namespace FlaxEditor.CustomEditors.Editors
     [CustomEditor(typeof(Asset)), DefaultEditor]
     public class AssetRefEditor : CustomEditor
     {
-        private AssetPicker _picker;
+        /// <summary>
+        /// The asset picker used to get a reference to an asset.
+        /// </summary>
+        public AssetPicker Picker;
+
+        private bool _isRefreshing;
         private ScriptType _valueType;
 
         /// <inheritdoc />
@@ -44,7 +49,7 @@ namespace FlaxEditor.CustomEditors.Editors
         {
             if (HasDifferentTypes)
                 return;
-            _picker = layout.Custom<AssetPicker>().CustomControl;
+            Picker = layout.Custom<AssetPicker>().CustomControl;
 
             _valueType = Values.Type.Type != typeof(object) || Values[0] == null ? Values.Type : TypeUtils.GetObjectType(Values[0]);
             var assetType = _valueType;
@@ -66,7 +71,7 @@ namespace FlaxEditor.CustomEditors.Editors
                 {
                     // Generic file picker
                     assetType = ScriptType.Null;
-                    _picker.FileExtension = assetReference.TypeName;
+                    Picker.FileExtension = assetReference.TypeName;
                 }
                 else
                 {
@@ -75,26 +80,30 @@ namespace FlaxEditor.CustomEditors.Editors
                         assetType = customType;
                     else if (!Content.Settings.GameSettings.OptionalPlatformSettings.Contains(assetReference.TypeName))
                         Debug.LogWarning(string.Format("Unknown asset type '{0}' to use for asset picker filter.", assetReference.TypeName));
+                    else
+                        assetType = ScriptType.Void;
                 }
             }
 
-            _picker.AssetType = assetType;
-            _picker.Height = height;
-            _picker.SelectedItemChanged += OnSelectedItemChanged;
+            Picker.AssetType = assetType;
+            Picker.Height = height;
+            Picker.SelectedItemChanged += OnSelectedItemChanged;
         }
 
         private void OnSelectedItemChanged()
         {
+            if (_isRefreshing)
+                return;
             if (typeof(AssetItem).IsAssignableFrom(_valueType.Type))
-                SetValue(_picker.SelectedItem);
+                SetValue(Picker.SelectedItem);
             else if (_valueType.Type == typeof(Guid))
-                SetValue(_picker.SelectedID);
+                SetValue(Picker.SelectedID);
             else if (_valueType.Type == typeof(SceneReference))
-                SetValue(new SceneReference(_picker.SelectedID));
+                SetValue(new SceneReference(Picker.SelectedID));
             else if (_valueType.Type == typeof(string))
-                SetValue(_picker.SelectedPath);
+                SetValue(Picker.SelectedPath);
             else
-                SetValue(_picker.SelectedAsset);
+                SetValue(Picker.SelectedAsset);
         }
 
         /// <inheritdoc />
@@ -104,16 +113,18 @@ namespace FlaxEditor.CustomEditors.Editors
 
             if (!HasDifferentValues)
             {
+                _isRefreshing = true;
                 if (Values[0] is AssetItem assetItem)
-                    _picker.SelectedItem = assetItem;
+                    Picker.SelectedItem = assetItem;
                 else if (Values[0] is Guid guid)
-                    _picker.SelectedID = guid;
+                    Picker.SelectedID = guid;
                 else if (Values[0] is SceneReference sceneAsset)
-                    _picker.SelectedItem = Editor.Instance.ContentDatabase.FindAsset(sceneAsset.ID);
+                    Picker.SelectedItem = Editor.Instance.ContentDatabase.FindAsset(sceneAsset.ID);
                 else if (Values[0] is string path)
-                    _picker.SelectedPath = path;
+                    Picker.SelectedPath = path;
                 else
-                    _picker.SelectedAsset = Values[0] as Asset;
+                    Picker.SelectedAsset = Values[0] as Asset;
+                _isRefreshing = false;
             }
         }
     }

Source/Editor/CustomEditors/Editors/ModelInstanceEntryEditor.cs

@@ -1,6 +1,8 @@
 // Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
 
 using FlaxEditor.CustomEditors.Elements;
+using FlaxEditor.CustomEditors.GUI;
+using FlaxEditor.Scripting;
 using FlaxEngine;
 
 namespace FlaxEditor.CustomEditors.Editors
@@ -13,6 +15,11 @@ namespace FlaxEditor.CustomEditors.Editors
     {
         private GroupElement _group;
         private bool _updateName;
+        private int _entryIndex;
+        private bool _isRefreshing;
+        private MaterialBase _material;
+        private ModelInstanceActor _modelInstance;
+        private AssetRefEditor _materialEditor;
 
         /// <inheritdoc />
         public override void Initialize(LayoutElementsContainer layout)
@@ -21,47 +28,122 @@ namespace FlaxEditor.CustomEditors.Editors
             var group = layout.Group("Entry");
             _group = group;
 
+            if (ParentEditor == null)
+                return;
+            var entry = (ModelInstanceEntry)Values[0];
+            var entryIndex = ParentEditor.ChildrenEditors.IndexOf(this);
+            var materialLabel = new PropertyNameLabel("Material");
+            materialLabel.TooltipText = "The mesh surface material used for the rendering.";
+            if (ParentEditor.ParentEditor?.Values[0] is ModelInstanceActor modelInstance)
+            {
+                _entryIndex = entryIndex;
+                _modelInstance = modelInstance;
+                var slots = modelInstance.MaterialSlots;
+                if (entry.Material == slots[entryIndex].Material)
+                {
+                    // Ensure that entry with default material set is set back to null
+                    modelInstance.SetMaterial(entryIndex, null);
+                }
+                _material = modelInstance.GetMaterial(entryIndex);
+                var defaultValue = GPUDevice.Instance.DefaultMaterial;
+                if (slots[entryIndex].Material)
+                {
+                    // Use default value set on asset (eg. Model Asset)
+                    defaultValue = slots[entryIndex].Material;
+                }
+
+                // Create material picker
+                var materialValue = new CustomValueContainer(new ScriptType(typeof(MaterialBase)), _material, (instance, index) => _material, (instance, index, value) => _material = value as MaterialBase);
+                var materialEditor = (AssetRefEditor)_group.Property(materialLabel, materialValue);
+                materialEditor.Values.SetDefaultValue(defaultValue);
+                materialEditor.RefreshDefaultValue();
+                materialEditor.Picker.SelectedItemChanged += OnSelectedMaterialChanged;
+                _materialEditor = materialEditor;
+            }
+
             base.Initialize(group);
         }
 
+        private void OnSelectedMaterialChanged()
+        {
+            if (_isRefreshing)
+                return;
+            _isRefreshing = true;
+            var slots = _modelInstance.MaterialSlots;
+            var material = _materialEditor.Picker.SelectedAsset as MaterialBase;
+            var defaultMaterial = GPUDevice.Instance.DefaultMaterial;
+            var value = (ModelInstanceEntry)Values[0];
+            var prevMaterial = value.Material;
+            if (!material)
+            {
+                // Fallback to default material
+                _materialEditor.Picker.SelectedAsset = defaultMaterial;
+                value.Material = defaultMaterial;
+            }
+            else if (material == slots[_entryIndex].Material)
+            {
+                // Asset default material
+                value.Material = null;
+            }
+            else if (material == defaultMaterial && !slots[_entryIndex].Material)
+            {
+                // Default material while asset has no set as well
+                value.Material = null;
+            }
+            else
+            {
+                // Custom material
+                value.Material = material;
+            }
+            if (prevMaterial != value.Material)
+                SetValue(value);
+            _isRefreshing = false;
+        }
+
+        /// <inheritdoc />
+        protected override void SpawnProperty(LayoutElementsContainer itemLayout, ValueContainer itemValues, ItemInfo item)
+        {
+            // Skip material member as it is overridden
+            if (item.Info.Name == "Material" && _materialEditor != null)
+                return;
+            base.SpawnProperty(itemLayout, itemValues, item);
+        }
+
         /// <inheritdoc />
         public override void Refresh()
         {
+            // Update panel title to match material slot name
             if (_updateName &&
                 _group != null &&
                 ParentEditor?.ParentEditor != null &&
                 ParentEditor.ParentEditor.Values.Count > 0)
             {
                 var entryIndex = ParentEditor.ChildrenEditors.IndexOf(this);
-                if (ParentEditor.ParentEditor.Values[0] is StaticModel staticModel)
+                if (ParentEditor.ParentEditor.Values[0] is ModelInstanceActor modelInstance)
                 {
-                    var model = staticModel.Model;
-                    if (model && model.IsLoaded)
+                    var slots = modelInstance.MaterialSlots;
+                    if (slots != null && slots.Length > entryIndex)
                     {
-                        var slots = model.MaterialSlots;
-                        if (slots != null && slots.Length > entryIndex)
-                        {
-                            _group.Panel.HeaderText = "Entry " + slots[entryIndex].Name;
-                            _updateName = false;
-                        }
-                    }
-                }
-                else if (ParentEditor.ParentEditor.Values[0] is AnimatedModel animatedModel)
-                {
-                    var model = animatedModel.SkinnedModel;
-                    if (model && model.IsLoaded)
-                    {
-                        var slots = model.MaterialSlots;
-                        if (slots != null && slots.Length > entryIndex)
-                        {
-                            _group.Panel.HeaderText = "Entry " + slots[entryIndex].Name;
-                            _updateName = false;
-                        }
+                        _updateName = false;
+                        _group.Panel.HeaderText = "Entry " + slots[entryIndex].Name;
                     }
                 }
             }
 
+            // Refresh currently selected material
+            _material = _modelInstance.GetMaterial(_entryIndex);
+
             base.Refresh();
         }
+
+        /// <inheritdoc />
+        protected override void Deinitialize()
+        {
+            _material = null;
+            _modelInstance = null;
+            _materialEditor = null;
+
+            base.Deinitialize();
+        }
     }
 }

Source/Editor/EditorIcons.cs

@@ -96,6 +96,7 @@ namespace FlaxEditor
         public SpriteHandle Link64;
         public SpriteHandle Build64;
         public SpriteHandle Add64;
+        public SpriteHandle ShipIt64;
 
         // 96px
         public SpriteHandle Toolbox96;

Source/Editor/GUI/AssetPicker.cs

@@ -475,22 +475,31 @@ namespace FlaxEditor.GUI
                     if (_type != ScriptType.Null)
                     {
                         // Show asset picker popup
-                        AssetSearchPopup.Show(this, Button1Rect.BottomLeft, IsValid, item =>
+                        var popup = AssetSearchPopup.Show(this, Button1Rect.BottomLeft, IsValid, item =>
                         {
                             SelectedItem = item;
                             RootWindow.Focus();
                             Focus();
                         });
+                        if (_selected != null)
+                        { 
+                            var selectedAssetName = Path.GetFileNameWithoutExtension(_selected.Path); 
+                            popup.ScrollToAndHighlightItemByName(selectedAssetName);
+                        }
                     }
                     else
                     {
                         // Show content item picker popup
-                        ContentSearchPopup.Show(this, Button1Rect.BottomLeft, IsValid, item =>
+                        var popup = ContentSearchPopup.Show(this, Button1Rect.BottomLeft, IsValid, item =>
                         {
                             SelectedItem = item;
                             RootWindow.Focus();
                             Focus();
                         });
+                        if (_selectedItem != null)
+                        {
+                            popup.ScrollToAndHighlightItemByName(_selectedItem.ShortName);
+                        }
                     }
                 }
                 else if (_selected != null || _selectedItem != null)

Source/Editor/GUI/ContextMenu/ContextMenuSingleSelectGroup.cs

@@ -0,0 +1,93 @@
+// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
+
+using System;
+using System.Collections.Generic;
+using FlaxEngine;
+
+namespace FlaxEditor.GUI.ContextMenu
+{
+    /// <summary>
+    /// Context menu for a single selectable option from range of values (eg. enum).
+    /// </summary>
+    [HideInEditor]
+    class ContextMenuSingleSelectGroup<T>
+    {
+        private struct SingleSelectGroupItem
+        {
+            public string Text;
+            public string Tooltip;
+            public T Value;
+            public Action Selected;
+            public List<ContextMenuButton> Buttons;
+        }
+
+        private List<ContextMenu> _menus = new List<ContextMenu>();
+        private List<SingleSelectGroupItem> _items = new List<SingleSelectGroupItem>();
+        private SingleSelectGroupItem _selectedItem;
+
+        public T Selected
+        {
+            get => _selectedItem.Value;
+            set
+            {
+                var index = _items.FindIndex(x => x.Value.Equals(value));
+                if (index != -1 && !_selectedItem.Value.Equals(value))
+                {
+                    SetSelected(_items[index]);
+                }
+            }
+        }
+
+        public Action<T> SelectedChanged;
+
+        public ContextMenuSingleSelectGroup<T> AddItem(string text, T value, Action selected = null, string tooltip = null)
+        {
+            var item = new SingleSelectGroupItem
+            {
+                Text = text,
+                Tooltip = tooltip,
+                Value = value,
+                Selected = selected,
+                Buttons = new List<ContextMenuButton>()
+            };
+            _items.Add(item);
+            foreach (var contextMenu in _menus)
+                AddItemToContextMenu(contextMenu, item);
+            return this;
+        }
+
+        public ContextMenuSingleSelectGroup<T> AddItemsToContextMenu(ContextMenu contextMenu)
+        {
+            _menus.Add(contextMenu);
+            for (int i = 0; i < _items.Count; i++)
+                AddItemToContextMenu(contextMenu, _items[i]);
+            return this;
+        }
+
+        private void AddItemToContextMenu(ContextMenu contextMenu, SingleSelectGroupItem item)
+        {
+            var btn = contextMenu.AddButton(item.Text, () => { SetSelected(item); });
+            if (item.Tooltip != null)
+                btn.TooltipText = item.Tooltip;
+            item.Buttons.Add(btn);
+            if (item.Equals(_selectedItem))
+                btn.Checked = true;
+        }
+
+        private void SetSelected(SingleSelectGroupItem item)
+        {
+            foreach (var e in _items)
+            {
+                foreach (var btn in e.Buttons)
+                    btn.Checked = false;
+            }
+            _selectedItem = item;
+
+            SelectedChanged?.Invoke(item.Value);
+            item.Selected?.Invoke();
+
+            foreach (var btn in item.Buttons)
+                btn.Checked = true;
+        }
+    }
+}

Source/Editor/GUI/ItemsListContextMenu.cs

@@ -265,6 +265,35 @@ namespace FlaxEditor.GUI
             _searchBox.Focus();
         }
 
+        /// <summary>
+        /// Scrolls the scroll panel to a specific Item
+        /// </summary>
+        /// <param name="item">The item to scroll to.</param>
+        public void ScrollViewTo(Item item)
+        {
+            _scrollPanel.ScrollViewTo(item, true);
+        }
+
+        /// <summary>
+        /// Scrolls to the item and focuses it by name.
+        /// </summary>
+        /// <param name="itemName">The item name.</param>
+        public void ScrollToAndHighlightItemByName(string itemName)
+        {
+            foreach (var child in ItemsPanel.Children)
+            {
+                if (child is not ItemsListContextMenu.Item item)
+                    continue;
+                if (string.Equals(item.Name, itemName, StringComparison.Ordinal))
+                {
+                    // Highlight and scroll to item
+                    item.Focus();
+                    ScrollViewTo(item);
+                    break;
+                }
+            }
+        }
+
         /// <summary>
         /// Sorts the items list (by item name by default).
         /// </summary>

Source/Editor/GUI/ToolStrip.cs

@@ -23,10 +23,15 @@ namespace FlaxEditor.GUI
         public const int DefaultMarginH = 2;
 
         /// <summary>
-        /// Event fired when button gets clicked.
+        /// Event fired when button gets clicked with the primary mouse button.
         /// </summary>
         public Action<ToolStripButton> ButtonClicked;
 
+        /// <summary>
+        /// Event fired when button gets clicked with the secondary mouse button.
+        /// </summary>
+        public Action<ToolStripButton> SecondaryButtonClicked;
+
         /// <summary>
         /// Tries to get the last button.
         /// </summary>
@@ -146,6 +151,11 @@ namespace FlaxEditor.GUI
             ButtonClicked?.Invoke(button);
         }
 
+        internal void OnSecondaryButtonClicked(ToolStripButton button)
+        {
+            SecondaryButtonClicked?.Invoke(button);
+        }
+
         /// <inheritdoc />
         protected override void PerformLayoutBeforeChildren()
         {

Source/Editor/GUI/ToolStripButton.cs

@@ -20,13 +20,19 @@ namespace FlaxEditor.GUI
 
         private SpriteHandle _icon;
         private string _text;
-        private bool _mouseDown;
+        private bool _primaryMouseDown;
+        private bool _secondaryMouseDown;
 
         /// <summary>
         /// Event fired when user clicks the button.
         /// </summary>
         public Action Clicked;
 
+        /// <summary>
+        /// Event fired when user clicks the button.
+        /// </summary>
+        public Action SecondaryClicked;
+
         /// <summary>
         /// The checked state.
         /// </summary>
@@ -63,6 +69,11 @@ namespace FlaxEditor.GUI
             }
         }
 
+        /// <summary>
+        /// A reference to a context menu to raise when the secondary mouse button is pressed.
+        /// </summary>
+        public ContextMenu.ContextMenu ContextMenu;
+
         /// <summary>
         /// Initializes a new instance of the <see cref="ToolStripButton"/> class.
         /// </summary>
@@ -108,10 +119,11 @@ namespace FlaxEditor.GUI
             var iconRect = new Rectangle(DefaultMargin, DefaultMargin, iconSize, iconSize);
             var textRect = new Rectangle(DefaultMargin, 0, 0, Height);
             bool enabled = EnabledInHierarchy;
+            bool mouseButtonDown = _primaryMouseDown || _secondaryMouseDown;
 
             // Draw background
             if (enabled && (IsMouseOver || IsNavFocused || Checked))
-                Render2D.FillRectangle(clientRect, Checked ? style.BackgroundSelected : _mouseDown ? style.BackgroundHighlighted : (style.LightBackground * 1.3f));
+                Render2D.FillRectangle(clientRect, Checked ? style.BackgroundSelected : mouseButtonDown ? style.BackgroundHighlighted : (style.LightBackground * 1.3f));
 
             // Draw icon
             if (_icon.IsValid)
@@ -124,13 +136,7 @@ namespace FlaxEditor.GUI
             if (!string.IsNullOrEmpty(_text))
             {
                 textRect.Size.X = Width - DefaultMargin - textRect.Left;
-                Render2D.DrawText(
-                    style.FontMedium,
-                    _text,
-                    textRect,
-                    enabled ? style.Foreground : style.ForegroundDisabled,
-                    TextAlignment.Near,
-                    TextAlignment.Center);
+                Render2D.DrawText(style.FontMedium, _text, textRect, enabled ? style.Foreground : style.ForegroundDisabled, TextAlignment.Near, TextAlignment.Center);
             }
         }
 
@@ -155,9 +161,13 @@ namespace FlaxEditor.GUI
         {
             if (button == MouseButton.Left)
             {
-                // Set flag
-                _mouseDown = true;
-
+                _primaryMouseDown = true;
+                Focus();
+                return true;
+            }
+            if (button == MouseButton.Right)
+            {
+                _secondaryMouseDown = true;
                 Focus();
                 return true;
             }
@@ -168,12 +178,9 @@ namespace FlaxEditor.GUI
         /// <inheritdoc />
         public override bool OnMouseUp(Float2 location, MouseButton button)
         {
-            if (button == MouseButton.Left && _mouseDown)
+            if (button == MouseButton.Left && _primaryMouseDown)
             {
-                // Clear flag
-                _mouseDown = false;
-
-                // Fire events
+                _primaryMouseDown = false;
                 if (AutoCheck)
                     Checked = !Checked;
                 Clicked?.Invoke();
@@ -181,6 +188,14 @@ namespace FlaxEditor.GUI
 
                 return true;
             }
+            if (button == MouseButton.Right && _secondaryMouseDown)
+            {
+                _secondaryMouseDown = false;
+                SecondaryClicked?.Invoke();
+                (Parent as ToolStrip)?.OnSecondaryButtonClicked(this);
+                ContextMenu?.Show(this, new Float2(0, Height));
+                return true;
+            }
 
             return base.OnMouseUp(location, button);
         }
@@ -188,8 +203,8 @@ namespace FlaxEditor.GUI
         /// <inheritdoc />
         public override void OnMouseLeave()
         {
-            // Clear flag
-            _mouseDown = false;
+            _primaryMouseDown = false;
+            _secondaryMouseDown = false;
 
             base.OnMouseLeave();
         }
@@ -197,8 +212,8 @@ namespace FlaxEditor.GUI
         /// <inheritdoc />
         public override void OnLostFocus()
         {
-            // Clear flag
-            _mouseDown = false;
+            _primaryMouseDown = false;
+            _secondaryMouseDown = false;
 
             base.OnLostFocus();
         }

Source/Editor/Gizmo/GridGizmo.cs

@@ -46,20 +46,19 @@ namespace FlaxEditor.Gizmo
                 var plane = new Plane(Vector3.Zero, Vector3.UnitY);
                 var dst = CollisionsHelper.DistancePlanePoint(ref plane, ref viewPos);
 
-                float space, size;
+                float space = Editor.Instance.Options.Options.Viewport.ViewportGridScale, size;
                 if (dst <= 500.0f)
                 {
-                    space = 50;
                     size = 8000;
                 }
                 else if (dst <= 2000.0f)
                 {
-                    space = 100;
+                    space *= 2;
                     size = 8000;
                 }
                 else
                 {
-                    space = 1000;
+                    space *= 20;
                     size = 100000;
                 }
 

Source/Editor/Gizmo/SelectionOutline.cs

@@ -178,6 +178,8 @@ namespace FlaxEditor.Gizmo
                 if (selection[i] is ActorNode actorNode && actorNode.Actor != null)
                     CollectActors(actorNode.Actor);
             }
+            if (_actors.Count == 0)
+                return;
 
             // Render selected objects depth
             Renderer.DrawSceneDepth(context, task, customDepth, _actors);

Source/Editor/Gizmo/TransformGizmoBase.cs

@@ -469,7 +469,7 @@ namespace FlaxEditor.Gizmo
                     }
 
                     // Apply transformation (but to the parents, not whole selection pool)
-                    if (anyValid || (!_isTransforming && Owner.UseDuplicate))
+                    if (anyValid || (_isTransforming && Owner.UseDuplicate))
                     {
                         StartTransforming();
                         LastDelta = new Transform(translationDelta, rotationDelta, scaleDelta);

Source/Editor/Modules/PrefabsModule.cs

@@ -37,6 +37,11 @@ namespace FlaxEditor.Modules
         /// </summary>
         public event Action<Prefab, Actor> PrefabApplied;
 
+        /// <summary>
+        /// Locally cached actor for prefab creation.
+        /// </summary>
+        private Actor _prefabCreationActor;
+
         internal PrefabsModule(Editor editor)
         : base(editor)
         {
@@ -78,6 +83,16 @@ namespace FlaxEditor.Modules
         /// </remarks>
         /// <param name="actor">The root prefab actor.</param>
         public void CreatePrefab(Actor actor)
+        {
+            CreatePrefab(actor, true);
+        }
+
+        /// <summary>
+        /// Starts the creating prefab for the given actor by showing the new item creation dialog in <see cref="ContentWindow"/>.
+        /// </summary>
+        /// <param name="actor">The root prefab actor.</param>
+        /// <param name="rename">Allow renaming or not</param>
+        public void CreatePrefab(Actor actor, bool rename)
         {
             // Skip in invalid states
             if (!Editor.StateMachine.CurrentState.CanEditContent)
@@ -90,7 +105,8 @@ namespace FlaxEditor.Modules
             PrefabCreating?.Invoke(actor);
 
             var proxy = Editor.ContentDatabase.GetProxy<Prefab>();
-            Editor.Windows.ContentWin.NewItem(proxy, actor, OnPrefabCreated, actor.Name);
+            _prefabCreationActor = actor;
+            Editor.Windows.ContentWin.NewItem(proxy, actor, OnPrefabCreated, actor.Name, rename);
         }
 
         private void OnPrefabCreated(ContentItem contentItem)
@@ -107,25 +123,21 @@ namespace FlaxEditor.Modules
             // Record undo for prefab creating (backend links the target instance with the prefab)
             if (Editor.Undo.Enabled)
             {
-                var selection = Editor.SceneEditing.Selection.Where(x => x is ActorNode).ToList().BuildNodesParents();
-                if (selection.Count == 0)
+                if (!_prefabCreationActor)
                     return;
 
-                if (selection.Count == 1)
+                var actorsList = new List<Actor>();
+                Utilities.Utils.GetActorsTree(actorsList, _prefabCreationActor);
+                
+                var actions = new IUndoAction[actorsList.Count];
+                for (int i = 0; i < actorsList.Count; i++)
                 {
-                    var action = BreakPrefabLinkAction.Linked(((ActorNode)selection[0]).Actor);
-                    Undo.AddAction(action);
-                }
-                else
-                {
-                    var actions = new IUndoAction[selection.Count];
-                    for (int i = 0; i < selection.Count; i++)
-                    {
-                        var action = BreakPrefabLinkAction.Linked(((ActorNode)selection[i]).Actor);
-                        actions[i] = action;
-                    }
-                    Undo.AddAction(new MultiUndoAction(actions));
+                    var action = BreakPrefabLinkAction.Linked(actorsList[i]);
+                    actions[i] = action;
                 }
+                Undo.AddAction(new MultiUndoAction(actions));
+
+                _prefabCreationActor = null;
             }
 
             Editor.Instance.Windows.PropertiesWin.Presenter.BuildLayout();

Source/Editor/Modules/UIModule.cs

@@ -20,6 +20,8 @@ using FlaxEngine.GUI;
 using FlaxEngine.Json;
 using DockHintWindow = FlaxEditor.GUI.Docking.DockHintWindow;
 using MasterDockPanel = FlaxEditor.GUI.Docking.MasterDockPanel;
+using FlaxEditor.Content.Settings;
+using FlaxEditor.Options;
 
 namespace FlaxEditor.Modules
 {
@@ -36,6 +38,9 @@ namespace FlaxEditor.Modules
         private ContentStats _contentStats;
         private bool _progressFailed;
 
+        ContextMenuSingleSelectGroup<int> _numberOfClientsGroup = new ContextMenuSingleSelectGroup<int>();
+        private Scene[] _scenesToReload;
+
         private ContextMenuButton _menuFileSaveScenes;
         private ContextMenuButton _menuFileCloseScenes;
         private ContextMenuButton _menuFileGenerateScriptsProjectFiles;
@@ -54,7 +59,9 @@ namespace FlaxEditor.Modules
         private ContextMenuButton _menuSceneAlignViewportWithActor;
         private ContextMenuButton _menuScenePilotActor;
         private ContextMenuButton _menuSceneCreateTerrain;
-        private ContextMenuButton _menuGamePlay;
+        private ContextMenuButton _menuGamePlayGame;
+        private ContextMenuButton _menuGamePlayCurrentScenes;
+        private ContextMenuButton _menuGameStop;
         private ContextMenuButton _menuGamePause;
         private ContextMenuButton _menuToolsBuildScenes;
         private ContextMenuButton _menuToolsBakeLightmaps;
@@ -74,6 +81,7 @@ namespace FlaxEditor.Modules
         private ToolStripButton _toolStripRotate;
         private ToolStripButton _toolStripScale;
         private ToolStripButton _toolStripBuildScenes;
+        private ToolStripButton _toolStripCook;
         private ToolStripButton _toolStripPlay;
         private ToolStripButton _toolStripPause;
         private ToolStripButton _toolStripStep;
@@ -195,6 +203,7 @@ namespace FlaxEditor.Modules
             _toolStripScale.Checked = gizmoMode == TransformGizmoBase.Mode.Scale;
             //
             _toolStripBuildScenes.Enabled = (canEditScene && !isPlayMode) || Editor.StateMachine.BuildingScenesState.IsActive;
+            _toolStripCook.Enabled = Editor.Windows.GameCookerWin.CanBuild(Platform.PlatformType) && !GameCooker.IsRunning;
             //
             var play = _toolStripPlay;
             var pause = _toolStripPause;
@@ -351,6 +360,7 @@ namespace FlaxEditor.Modules
             // Update window background
             mainWindow.BackgroundColor = Style.Current.Background;
 
+            InitSharedMenus();
             InitMainMenu(mainWindow);
             InitToolstrip(mainWindow);
             InitStatusBar(mainWindow);
@@ -409,6 +419,7 @@ namespace FlaxEditor.Modules
             Editor.Undo.UndoDone += OnUndoEvent;
             Editor.Undo.RedoDone += OnUndoEvent;
             Editor.Undo.ActionDone += OnUndoEvent;
+            GameCooker.Event += OnGameCookerEvent;
 
             UpdateToolstrip();
         }
@@ -424,6 +435,11 @@ namespace FlaxEditor.Modules
             UpdateStatusBar();
         }
 
+        private void OnGameCookerEvent(GameCooker.EventType type)
+        {
+            UpdateToolstrip();
+        }
+
         /// <inheritdoc />
         public override void OnExit()
         {
@@ -466,6 +482,22 @@ namespace FlaxEditor.Modules
             return dialog;
         }
 
+        private void InitSharedMenus()
+        {
+            for (int i = 1; i <= 4; i++)
+                _numberOfClientsGroup.AddItem(i.ToString(), i);
+
+            _numberOfClientsGroup.Selected = Editor.Options.Options.Interface.NumberOfGameClientsToLaunch;
+            _numberOfClientsGroup.SelectedChanged = value =>
+            {
+                var options = Editor.Options.Options;
+                options.Interface.NumberOfGameClientsToLaunch = value;
+                Editor.Options.Apply(options);
+            };
+
+            Editor.Options.OptionsChanged += options => { _numberOfClientsGroup.Selected = options.Interface.NumberOfGameClientsToLaunch; };
+        }
+
         private void InitMainMenu(RootControl mainWindow)
         {
             MainMenu = new MainMenu(mainWindow)
@@ -523,11 +555,19 @@ namespace FlaxEditor.Modules
             MenuGame = MainMenu.AddButton("Game");
             cm = MenuGame.ContextMenu;
             cm.VisibleChanged += OnMenuGameShowHide;
-            _menuGamePlay = cm.AddButton("Play", inputOptions.Play.ToString(), Editor.Simulation.RequestStartPlay);
+
+            _menuGamePlayGame = cm.AddButton("Play Game", PlayGame);
+            _menuGamePlayCurrentScenes = cm.AddButton("Play Current Scenes", inputOptions.Play.ToString(), PlayScenes);
+            _menuGameStop = cm.AddButton("Stop Game", Editor.Simulation.RequestStopPlay);
             _menuGamePause = cm.AddButton("Pause", inputOptions.Pause.ToString(), Editor.Simulation.RequestPausePlay);
+
             cm.AddSeparator();
-            cm.AddButton("Cook & Run", Editor.Windows.GameCookerWin.BuildAndRun).LinkTooltip("Runs Game Cooker to build the game for this platform and runs the game after.");
-            cm.AddButton("Run cooked game", Editor.Windows.GameCookerWin.RunCooked).LinkTooltip("Runs the game build from the last cooking output. Use Cook&Play or Game Cooker first.");
+            var numberOfClientsMenu = cm.AddChildMenu("Number of game clients");
+            _numberOfClientsGroup.AddItemsToContextMenu(numberOfClientsMenu.ContextMenu);
+
+            cm.AddSeparator();
+            cm.AddButton("Cook & Run", CookAndRun).LinkTooltip("Runs Game Cooker to build the game for this platform and runs the game after.");
+            cm.AddButton("Run cooked game", RunCookedGame).LinkTooltip("Runs the game build from the last cooking output. Use Cook&Play or Game Cooker first.");
 
             // Tools
             MenuTools = MainMenu.AddButton("Tools");
@@ -603,7 +643,7 @@ namespace FlaxEditor.Modules
             _menuEditDuplicate.ShortKeys = inputOptions.Duplicate.ToString();
             _menuEditSelectAll.ShortKeys = inputOptions.SelectAll.ToString();
             _menuEditFind.ShortKeys = inputOptions.Search.ToString();
-            _menuGamePlay.ShortKeys = inputOptions.Play.ToString();
+            _menuGamePlayCurrentScenes.ShortKeys = inputOptions.Play.ToString();
             _menuGamePause.ShortKeys = inputOptions.Pause.ToString();
 
             MainMenuShortcutKeysUpdated?.Invoke();
@@ -611,6 +651,8 @@ namespace FlaxEditor.Modules
 
         private void InitToolstrip(RootControl mainWindow)
         {
+            var inputOptions = Editor.Options.Options.Input;
+
             ToolStrip = new ToolStrip(34.0f, MainMenu.Bottom)
             {
                 Parent = mainWindow,
@@ -625,10 +667,33 @@ namespace FlaxEditor.Modules
             _toolStripRotate = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Rotate32, () => Editor.MainTransformGizmo.ActiveMode = TransformGizmoBase.Mode.Rotate).LinkTooltip("Change Gizmo tool mode to Rotate (2)");
             _toolStripScale = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Scale32, () => Editor.MainTransformGizmo.ActiveMode = TransformGizmoBase.Mode.Scale).LinkTooltip("Change Gizmo tool mode to Scale (3)");
             ToolStrip.AddSeparator();
+
+            // Cook scenes
             _toolStripBuildScenes = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Build64, Editor.BuildScenesOrCancel).LinkTooltip("Build scenes data - CSG, navmesh, static lighting, env probes - configurable via Build Actions in editor options (Ctrl+F10)");
+
+            // Cook and run
+            _toolStripCook = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.ShipIt64, CookAndRun).LinkTooltip("Cook & Run - build game for the current platform and run it locally");
+            _toolStripCook.ContextMenu = new ContextMenu();
+            _toolStripCook.ContextMenu.AddButton("Run cooked game", RunCookedGame);
+            _toolStripCook.ContextMenu.AddSeparator();
+            var numberOfClientsMenu = _toolStripCook.ContextMenu.AddChildMenu("Number of game clients");
+            _numberOfClientsGroup.AddItemsToContextMenu(numberOfClientsMenu.ContextMenu);
+
             ToolStrip.AddSeparator();
-            _toolStripPlay = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Play64, Editor.Simulation.RequestPlayOrStopPlay).LinkTooltip("Start/Stop game (F5)");
-            _toolStripPause = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Pause64, Editor.Simulation.RequestResumeOrPause).LinkTooltip("Pause/Resume game(F6)");
+
+            // Play
+            _toolStripPlay = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Play64, OnPlayPressed).LinkTooltip("Play Game");
+            _toolStripPlay.ContextMenu = new ContextMenu();
+            var playSubMenu = _toolStripPlay.ContextMenu.AddChildMenu("Play button action");
+            var playActionGroup = new ContextMenuSingleSelectGroup<InterfaceOptions.PlayAction>();
+            playActionGroup.AddItem("Play Game", InterfaceOptions.PlayAction.PlayGame, null, "Launches the game from the First Scene defined in the project settings.");
+            playActionGroup.AddItem("Play Scenes", InterfaceOptions.PlayAction.PlayScenes, null, "Launches the game using the scenes currently loaded in the editor.");
+            playActionGroup.AddItemsToContextMenu(playSubMenu.ContextMenu);
+            playActionGroup.Selected = Editor.Options.Options.Interface.PlayButtonAction;
+            playActionGroup.SelectedChanged = SetPlayAction;
+            Editor.Options.OptionsChanged += options => { playActionGroup.Selected = options.Interface.PlayButtonAction; };
+
+            _toolStripPause = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Pause64, Editor.Simulation.RequestResumeOrPause).LinkTooltip($"Pause/Resume game({inputOptions.Pause})");
             _toolStripStep = (ToolStripButton)ToolStrip.AddButton(Editor.Icons.Skip64, Editor.Simulation.RequestPlayOneFrame).LinkTooltip("Step one frame in game");
 
             UpdateToolstrip();
@@ -663,10 +728,7 @@ namespace FlaxEditor.Modules
             var defaultTextColor = StatusBar.TextColor;
             _outputLogButton.HoverBegin += () => StatusBar.TextColor = Style.Current.BackgroundSelected;
             _outputLogButton.HoverEnd += () => StatusBar.TextColor = defaultTextColor;
-            _outputLogButton.Clicked += () =>
-            {
-                Editor.Windows.OutputLogWin.FocusOrShow();
-            };
+            _outputLogButton.Clicked += () => { Editor.Windows.OutputLogWin.FocusOrShow(); };
 
             // Progress bar with label
             const float progressBarWidth = 120.0f;
@@ -786,7 +848,9 @@ namespace FlaxEditor.Modules
             var isPlayMode = Editor.StateMachine.IsPlayMode;
             var canPlay = Level.IsAnySceneLoaded;
 
-            _menuGamePlay.Enabled = !isPlayMode && canPlay;
+            _menuGamePlayGame.Enabled = !isPlayMode && canPlay;
+            _menuGamePlayCurrentScenes.Enabled = !isPlayMode && canPlay;
+            _menuGameStop.Enabled = isPlayMode && canPlay;
             _menuGamePause.Enabled = isPlayMode && canPlay;
 
             c.PerformLayout();
@@ -968,6 +1032,72 @@ namespace FlaxEditor.Modules
             projectInfo.Save();
         }
 
+        private void SetPlayAction(InterfaceOptions.PlayAction newPlayAction)
+        {
+            var options = Editor.Options.Options;
+            options.Interface.PlayButtonAction = newPlayAction;
+            Editor.Options.Apply(options);
+        }
+
+        private void OnPlayPressed()
+        {
+            switch (Editor.Options.Options.Interface.PlayButtonAction)
+            {
+            case InterfaceOptions.PlayAction.PlayGame:
+                if (Editor.IsPlayMode)
+                    Editor.Simulation.RequestStopPlay();
+                else
+                    PlayGame();
+                return;
+            case InterfaceOptions.PlayAction.PlayScenes:
+                PlayScenes();
+                return;
+            }
+        }
+
+        private void PlayGame()
+        {
+            var firstScene = GameSettings.Load().FirstScene;
+            if (firstScene == Guid.Empty)
+            {
+                if (Level.IsAnySceneLoaded)
+                    Editor.Simulation.RequestStartPlay();
+                return;
+            }
+
+            _scenesToReload = Level.Scenes;
+            Level.UnloadAllScenes();
+            Level.LoadScene(firstScene);
+
+            Editor.PlayModeEnd += OnPlayGameSceneEnding;
+            Editor.Simulation.RequestPlayOrStopPlay();
+        }
+
+        private void OnPlayGameSceneEnding()
+        {
+            Editor.PlayModeEnd -= OnPlayGameSceneEnding;
+
+            Level.UnloadAllScenes();
+
+            foreach (var scene in _scenesToReload)
+                Level.LoadScene(scene.ID);
+        }
+
+        private void PlayScenes()
+        {
+            Editor.Simulation.RequestPlayOrStopPlay();
+        }
+
+        private void CookAndRun()
+        {
+            Editor.Windows.GameCookerWin.BuildAndRun();
+        }
+
+        private void RunCookedGame()
+        {
+            Editor.Windows.GameCookerWin.RunCooked();
+        }
+
         private void OnMainWindowClosing()
         {
             // Clear UI references (GUI cannot be used after window closing)

Source/Editor/Options/InterfaceOptions.cs

@@ -74,6 +74,22 @@ namespace FlaxEditor.Options
             DockBottom = DockState.DockBottom
         }
 
+        /// <summary>
+        /// Options for the action taken by the play button.
+        /// </summary>
+        public enum PlayAction
+        {
+            /// <summary>
+            /// Launches the game from the First Scene defined in the project settings.
+            /// </summary>
+            PlayGame,
+
+            /// <summary>
+            /// Launches the game using the scenes currently loaded in the editor.
+            /// </summary>
+            PlayScenes,
+        }
+
         /// <summary>
         /// Gets or sets the Editor User Interface scale. Applied to all UI elements, windows and text. Can be used to scale the interface up on a bigger display. Editor restart required.
         /// </summary>
@@ -82,14 +98,12 @@ namespace FlaxEditor.Options
         public float InterfaceScale { get; set; } = 1.0f;
 
 #if PLATFORM_WINDOWS
-
         /// <summary>
         /// Gets or sets a value indicating whether use native window title bar. Editor restart required.
         /// </summary>
         [DefaultValue(false)]
         [EditorDisplay("Interface"), EditorOrder(70), Tooltip("Determines whether use native window title bar. Editor restart required.")]
         public bool UseNativeWindowSystem { get; set; } = false;
-
 #endif
 
         /// <summary>
@@ -196,30 +210,44 @@ namespace FlaxEditor.Options
         [EditorDisplay("Play In-Editor", "Focus Game Window On Play"), EditorOrder(400), Tooltip("Determines whether auto-focus game window on play mode start.")]
         public bool FocusGameWinOnPlay { get; set; } = true;
 
+        /// <summary>
+        /// Gets or sets a value indicating what action should be taken upon pressing the play button.
+        /// </summary>
+        [DefaultValue(PlayAction.PlayScenes)]
+        [EditorDisplay("Play In-Editor", "Play Button Action"), EditorOrder(410)]
+        public PlayAction PlayButtonAction { get; set; } = PlayAction.PlayScenes;
+
+        /// <summary>
+        /// Gets or sets a value indicating the number of game clients to launch when building and/or running cooked game.
+        /// </summary>
+        [DefaultValue(1), Range(1, 4)]
+        [EditorDisplay("Cook & Run"), EditorOrder(500)]
+        public int NumberOfGameClientsToLaunch = 1;
+
         private static FontAsset DefaultFont => FlaxEngine.Content.LoadAsyncInternal<FontAsset>(EditorAssets.PrimaryFont);
 
         /// <summary>
         /// Gets or sets the title font for editor UI.
         /// </summary>
-        [EditorDisplay("Fonts"), EditorOrder(500), Tooltip("The title font for editor UI.")]
+        [EditorDisplay("Fonts"), EditorOrder(600), Tooltip("The title font for editor UI.")]
         public FontReference TitleFont { get; set; } = new FontReference(DefaultFont, 18);
 
         /// <summary>
         /// Gets or sets the large font for editor UI.
         /// </summary>
-        [EditorDisplay("Fonts"), EditorOrder(510), Tooltip("The large font for editor UI.")]
+        [EditorDisplay("Fonts"), EditorOrder(610), Tooltip("The large font for editor UI.")]
         public FontReference LargeFont { get; set; } = new FontReference(DefaultFont, 14);
 
         /// <summary>
         /// Gets or sets the medium font for editor UI.
         /// </summary>
-        [EditorDisplay("Fonts"), EditorOrder(520), Tooltip("The medium font for editor UI.")]
+        [EditorDisplay("Fonts"), EditorOrder(620), Tooltip("The medium font for editor UI.")]
         public FontReference MediumFont { get; set; } = new FontReference(DefaultFont, 9);
 
         /// <summary>
         /// Gets or sets the small font for editor UI.
         /// </summary>
-        [EditorDisplay("Fonts"), EditorOrder(530), Tooltip("The small font for editor UI.")]
+        [EditorDisplay("Fonts"), EditorOrder(630), Tooltip("The small font for editor UI.")]
         public FontReference SmallFont { get; set; } = new FontReference(DefaultFont, 9);
     }
 }

Source/Editor/Options/ViewportOptions.cs

@@ -59,5 +59,12 @@ namespace FlaxEditor.Options
         [DefaultValue(false)]
         [EditorDisplay("Defaults"), EditorOrder(150), Tooltip("Invert the panning direction for the viewport camera.")]
         public bool DefaultInvertPanning { get; set; } = false;
+
+        /// <summary>
+        /// Scales editor viewport grid.
+        /// </summary>
+        [DefaultValue(50.0f), Limit(25.0f, 500.0f, 5.0f)]
+        [EditorDisplay("Defaults"), EditorOrder(160), Tooltip("Scales editor viewport grid.")]
+        public float ViewportGridScale { get; set; } = 50.0f;
     }
 }

Source/Editor/Tools/Foliage/FoliageTools.cpp

@@ -292,7 +292,6 @@ void FoliageTools::Paint(Foliage* foliage, Span<int32> foliageTypesIndices, cons
     {
         PROFILE_CPU_NAMED("Place Instances");
 
-        Matrix matrix;
         FoliageInstance instance;
         Quaternion tmp;
         Matrix world;

Source/Editor/Windows/DebugLogWindow.cs

@@ -80,6 +80,7 @@ namespace FlaxEditor.Windows
             public LogGroup Group;
             public LogEntryDescription Desc;
             public SpriteHandle Icon;
+            public int LogCount = 1;
 
             public LogEntry(DebugLogWindow window, ref LogEntryDescription desc)
             : base(0, 0, 120, DefaultHeight)
@@ -137,7 +138,14 @@ namespace FlaxEditor.Windows
                 // Title
                 var textRect = new Rectangle(38, 2, clientRect.Width - 40, clientRect.Height - 10);
                 Render2D.PushClip(ref clientRect);
-                Render2D.DrawText(style.FontMedium, Desc.Title, textRect, style.Foreground);
+                if (LogCount == 1)
+                {
+                    Render2D.DrawText(style.FontMedium, Desc.Title, textRect, style.Foreground);
+                }
+                else if (LogCount > 1)
+                {
+                    Render2D.DrawText(style.FontMedium, $"{Desc.Title} ({LogCount})", textRect, style.Foreground);
+                }
                 Render2D.PopClip();
             }
 
@@ -289,6 +297,7 @@ namespace FlaxEditor.Windows
         private readonly List<LogEntry> _pendingEntries = new List<LogEntry>(32);
 
         private readonly ToolStripButton _clearOnPlayButton;
+        private readonly ToolStripButton _collapseLogsButton;
         private readonly ToolStripButton _pauseOnErrorButton;
         private readonly ToolStripButton[] _groupButtons = new ToolStripButton[3];
 
@@ -316,6 +325,7 @@ namespace FlaxEditor.Windows
             };
             toolstrip.AddButton("Clear", Clear).LinkTooltip("Clears all log entries");
             _clearOnPlayButton = (ToolStripButton)toolstrip.AddButton("Clear on Play").SetAutoCheck(true).SetChecked(true).LinkTooltip("Clears all log entries on enter playmode");
+            _collapseLogsButton = (ToolStripButton)toolstrip.AddButton("Collapse").SetAutoCheck(true).SetChecked(true).LinkTooltip("Collapses similar logs.");
             _pauseOnErrorButton = (ToolStripButton)toolstrip.AddButton("Pause on Error").SetAutoCheck(true).LinkTooltip("Performs auto pause on error");
             toolstrip.AddSeparator();
             _groupButtons[0] = (ToolStripButton)toolstrip.AddButton(editor.Icons.Error32, () => UpdateLogTypeVisibility(LogGroup.Error, _groupButtons[0].Checked)).SetAutoCheck(true).SetChecked(true).LinkTooltip("Shows/hides error messages");
@@ -612,6 +622,30 @@ namespace FlaxEditor.Windows
                     var top = _entriesPanel.Children.Count != 0 ? _entriesPanel.Children[_entriesPanel.Children.Count - 1].Bottom + spacing : margin.Top;
                     for (int i = 0; i < _pendingEntries.Count; i++)
                     {
+                        if (_collapseLogsButton.Checked)
+                        {
+                            bool logExists = false;
+                            foreach (var child in _entriesPanel.Children)
+                            {
+                                if (child is LogEntry entry)
+                                {
+                                    var pendingEntry = _pendingEntries[i];
+                                    if (string.Equals(entry.Desc.Title, pendingEntry.Desc.Title, StringComparison.Ordinal) &&
+                                        string.Equals(entry.Desc.LocationFile, pendingEntry.Desc.LocationFile, StringComparison.Ordinal) &&
+                                        entry.Desc.Level == pendingEntry.Desc.Level &&
+                                        string.Equals(entry.Desc.Description, pendingEntry.Desc.Description, StringComparison.Ordinal) &&
+                                        entry.Desc.LocationLine == pendingEntry.Desc.LocationLine)
+                                    {
+                                        entry.LogCount += 1;
+                                        newEntry = entry;
+                                        logExists = true;
+                                        break;
+                                    }
+                                }
+                            }
+                            if (logExists)
+                                continue;
+                        }
                         newEntry = _pendingEntries[i];
                         newEntry.Visible = _groupButtons[(int)newEntry.Group].Checked;
                         anyVisible |= newEntry.Visible;

Source/Editor/Windows/GameCookerWindow.cs

@@ -238,6 +238,7 @@ namespace FlaxEditor.Windows
                 {
                     [EditorDisplay(null, "arm64")]
                     ARM64,
+
                     [EditorDisplay(null, "x64")]
                     x64,
                 }
@@ -614,6 +615,18 @@ namespace FlaxEditor.Windows
             _exitOnBuildEnd = true;
         }
 
+        /// <summary>
+        /// Returns true if can build for the given platform (both supported and available).
+        /// </summary>
+        /// <param name="platformType">The platform.</param>
+        /// <returns>True if can build, otherwise false.</returns>
+        public bool CanBuild(PlatformType platformType)
+        {
+            if (_buildTabProxy.PerPlatformOptions.TryGetValue(platformType, out var platform))
+                return platform.IsAvailable && platform.IsSupported;
+            return false;
+        }
+
         /// <summary>
         /// Builds all the targets from the given preset.
         /// </summary>
@@ -659,16 +672,24 @@ namespace FlaxEditor.Windows
         {
             Editor.Log("Building and running");
             GameCooker.GetCurrentPlatform(out var platform, out var buildPlatform, out var buildConfiguration);
-            _buildingQueue.Enqueue(new QueueItem
+            var numberOfClients = Editor.Options.Options.Interface.NumberOfGameClientsToLaunch;
+            for (int i = 0; i < numberOfClients; i++)
             {
-                Target = new BuildTarget
+                var buildOptions = BuildOptions.AutoRun;
+                if (i > 0)
+                    buildOptions |= BuildOptions.NoCook;
+
+                _buildingQueue.Enqueue(new QueueItem
                 {
-                    Output = _buildTabProxy.PerPlatformOptions[platform].Output,
-                    Platform = buildPlatform,
-                    Mode = buildConfiguration,
-                },
-                Options = BuildOptions.AutoRun,
-            });
+                    Target = new BuildTarget
+                    {
+                        Output = _buildTabProxy.PerPlatformOptions[platform].Output,
+                        Platform = buildPlatform,
+                        Mode = buildConfiguration,
+                    },
+                    Options = buildOptions,
+                });
+            }
         }
 
         /// <summary>
@@ -678,16 +699,20 @@ namespace FlaxEditor.Windows
         {
             Editor.Log("Running cooked build");
             GameCooker.GetCurrentPlatform(out var platform, out var buildPlatform, out var buildConfiguration);
-            _buildingQueue.Enqueue(new QueueItem
+            var numberOfClients = Editor.Options.Options.Interface.NumberOfGameClientsToLaunch;
+            for (int i = 0; i < numberOfClients; i++)
             {
-                Target = new BuildTarget
+                _buildingQueue.Enqueue(new QueueItem
                 {
-                    Output = _buildTabProxy.PerPlatformOptions[platform].Output,
-                    Platform = buildPlatform,
-                    Mode = buildConfiguration,
-                },
-                Options = BuildOptions.AutoRun | BuildOptions.NoCook,
-            });
+                    Target = new BuildTarget
+                    {
+                        Output = _buildTabProxy.PerPlatformOptions[platform].Output,
+                        Platform = buildPlatform,
+                        Mode = buildConfiguration,
+                    },
+                    Options = BuildOptions.AutoRun | BuildOptions.NoCook,
+                });
+            }
         }
 
         private void BuildTarget()

Source/Engine/Animations/AnimationGraph.cs

@@ -1,7 +1,6 @@
 // Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
 
 using System;
-using System.Runtime.CompilerServices;
 using System.Runtime.InteropServices;
 using System.Runtime.InteropServices.Marshalling;
 
@@ -94,9 +93,11 @@ namespace FlaxEngine
                 public AnimatedModel Instance;
             }
 
+            [HideInEditor]
             [CustomMarshaller(typeof(Context), MarshalMode.Default, typeof(ContextMarshaller))]
             internal static class ContextMarshaller
             {
+                [HideInEditor]
                 [StructLayout(LayoutKind.Sequential)]
                 public struct ContextNative
                 {
@@ -116,7 +117,7 @@ namespace FlaxEngine
 
                 internal static Context ToManaged(ContextNative managed)
                 {
-                    return new Context()
+                    return new Context
                     {
                         Graph = managed.Graph,
                         GraphExecutor = managed.GraphExecutor,
@@ -129,9 +130,10 @@ namespace FlaxEngine
                         Instance = AnimatedModelMarshaller.ConvertToManaged(managed.Instance),
                     };
                 }
+
                 internal static ContextNative ToNative(Context managed)
                 {
-                    return new ContextNative()
+                    return new ContextNative
                     {
                         Graph = managed.Graph,
                         GraphExecutor = managed.GraphExecutor,
@@ -144,6 +146,7 @@ namespace FlaxEngine
                         Instance = AnimatedModelMarshaller.ConvertToUnmanaged(managed.Instance),
                     };
                 }
+
                 internal static void Free(ContextNative unmanaged)
                 {
                 }
@@ -243,6 +246,12 @@ namespace FlaxEngine
                     throw new ArgumentNullException(nameof(source));
                 if (destination == null)
                     throw new ArgumentNullException(nameof(destination));
+                if (source->NodesCount <= 0 || source->NodesCount > 4096)
+                    throw new ArgumentOutOfRangeException(nameof(source));
+                if (destination->NodesCount <= 0 || destination->NodesCount > 4096)
+                    throw new ArgumentOutOfRangeException(nameof(destination));
+                if (source->NodesCount != destination->NodesCount)
+                    throw new ArgumentOutOfRangeException();
                 destination->NodesCount = source->NodesCount;
                 destination->Unused = source->Unused;
                 Utils.MemoryCopy(new IntPtr(destination->Nodes), new IntPtr(source->Nodes), (ulong)(source->NodesCount * sizeof(Transform)));

Source/Engine/Animations/Graph/AnimGraph.Custom.cpp

@@ -5,7 +5,6 @@
 #include "Engine/Scripting/Scripting.h"
 #include "Engine/Scripting/BinaryModule.h"
 #include "Engine/Scripting/ManagedCLR/MCore.h"
-#include "Engine/Scripting/ManagedCLR/MDomain.h"
 #include "Engine/Scripting/ManagedCLR/MMethod.h"
 #include "Engine/Scripting/ManagedCLR/MClass.h"
 #include "Engine/Scripting/ManagedCLR/MUtils.h"
@@ -189,12 +188,8 @@ bool AnimGraph::InitCustomNode(Node* node)
         return false;
     }
 
-    // Create node values managed array
+    // Initialization can happen on Content Thread so ensure to have runtime attached
     MCore::Thread::Attach();
-    MArray* values = MCore::Array::New( MCore::TypeCache::Object, node->Values.Count());
-    MObject** valuesPtr = MCore::Array::GetAddress<MObject*>(values);
-    for (int32 i = 0; i < node->Values.Count(); i++)
-        valuesPtr[i] = MUtils::BoxVariant(node->Values[i]);
 
     // Allocate managed node object (create GC handle to prevent destruction)
     MObject* obj = type->CreateInstance();
@@ -202,7 +197,7 @@ bool AnimGraph::InitCustomNode(Node* node)
 
     // Initialize node
     InternalInitData initData;
-    initData.Values = values;
+    initData.Values = MUtils::ToArray(node->Values, MCore::TypeCache::Object);
     initData.BaseModel = BaseModel.GetManagedInstance();
     void* params[1];
     params[0] = &initData;
@@ -211,7 +206,6 @@ bool AnimGraph::InitCustomNode(Node* node)
     if (exception)
     {
         MCore::GCHandle::Free(handleGC);
-
         MException ex(exception);
         ex.Log(LogType::Warning, TEXT("AnimGraph"));
         return false;

Source/Engine/Animations/Graph/AnimGroup.Animation.cpp

@@ -235,8 +235,9 @@ void AnimGraphExecutor::ProcessAnimation(AnimGraphImpulse* nodes, AnimGraphNode*
                 const float nestedAnimLength = nestedAnim.Anim->GetLength();
                 const float nestedAnimDuration = nestedAnim.Anim->GetDuration();
                 const float nestedAnimSpeed = nestedAnim.Speed * speed;
-                nestedAnimPos = nestedAnimPos / nestedAnimDuration * nestedAnimSpeed;
-                nestedAnimPrevPos = nestedAnimPrevPos / nestedAnimDuration * nestedAnimSpeed;
+                const float frameRateMatchScale = (float)nestedAnim.Anim->Data.FramesPerSecond / (float)anim->Data.FramesPerSecond;
+                nestedAnimPos = nestedAnimPos / nestedAnimDuration * nestedAnimSpeed * frameRateMatchScale;
+                nestedAnimPrevPos = nestedAnimPrevPos / nestedAnimDuration * nestedAnimSpeed * frameRateMatchScale;
                 GetAnimSamplePos(nestedAnim.Loop, nestedAnimLength, nestedAnim.StartTime, nestedAnimPrevPos, nestedAnimPos, nestedAnimPos, nestedAnimPrevPos);
 
                 ProcessAnimation(nodes, node, true, nestedAnimLength, nestedAnimPos, nestedAnimPrevPos, nestedAnim.Anim, 1.0f, weight, mode);

Source/Engine/Content/Assets/MaterialBase.h

@@ -27,7 +27,6 @@ public:
     /// <summary>
     /// Returns true if material is an material instance.
     /// </summary>
-    /// <returns>True if it's a material instance, otherwise false.</returns>
     virtual bool IsMaterialInstance() const = 0;
 
 public:

Source/Engine/Content/Storage/FlaxStorage.cpp

@@ -205,9 +205,6 @@ FlaxStorage::~FlaxStorage()
 {
     // Validate if has been disposed
     ASSERT(IsDisposed());
-
-    // Validate other fields
-    // Note: disposed storage has no open files
     CHECK(_chunksLock == 0);
     CHECK(_refCount == 0);
     ASSERT(_chunks.IsEmpty());
@@ -216,7 +213,6 @@ FlaxStorage::~FlaxStorage()
     // Ensure to close any outstanding file handles to prevent file locking in case it failed to load
     _file.DeleteAll();
 #endif
-
 }
 
 FlaxStorage::LockData FlaxStorage::LockSafe()
@@ -550,11 +546,9 @@ bool FlaxStorage::Load()
     }
     break;
     default:
-    {
         LOG(Warning, "Unsupported storage format version: {1}. {0}", ToString(), _version);
         return true;
     }
-    }
 
     // Mark as loaded (version number describes 'isLoaded' state)
     _version = version;
@@ -573,7 +567,7 @@ bool FlaxStorage::Reload()
 
     // Perform clean reloading
     Dispose();
-    bool failed = Load();
+    const bool failed = Load();
 
     OnReloaded(this, failed);
 
@@ -1434,10 +1428,8 @@ void FlaxFile::GetEntries(Array<Entry>& output) const
 
 void FlaxFile::Dispose()
 {
-    // Base
     FlaxStorage::Dispose();
 
-    // Clean
     _asset.ID = Guid::Empty;
 }
 
@@ -1482,7 +1474,7 @@ bool FlaxPackage::HasAsset(const Guid& id) const
 bool FlaxPackage::HasAsset(const AssetInfo& info) const
 {
     ASSERT(_path == info.Path);
-    Entry* e = _entries.TryGet(info.ID);
+    const Entry* e = _entries.TryGet(info.ID);
     return e && e->TypeName == info.TypeName;
 }
 
@@ -1511,10 +1503,8 @@ void FlaxPackage::GetEntries(Array<Entry>& output) const
 
 void FlaxPackage::Dispose()
 {
-    // Base
     FlaxStorage::Dispose();
 
-    // Clean
     _entries.Clear();
 }
 

Source/Engine/Core/Math/BoundingBox.h

@@ -38,9 +38,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    BoundingBox()
-    {
-    }
+    BoundingBox() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="BoundingBox"/> struct.

Source/Engine/Core/Math/BoundingFrustum.h

@@ -34,9 +34,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    BoundingFrustum()
-    {
-    }
+    BoundingFrustum() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="BoundingFrustum"/> struct.

Source/Engine/Core/Math/BoundingSphere.h

@@ -34,9 +34,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    BoundingSphere()
-    {
-    }
+    BoundingSphere() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="BoundingSphere"/> struct.

Source/Engine/Core/Math/Color.h

@@ -50,9 +50,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Color()
-    {
-    }
+    Color() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Color"/> struct.

Source/Engine/Core/Math/Color32.h

@@ -53,9 +53,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Color32()
-    {
-    }
+    Color32() = default;
 
     /// <summary>
     /// Constructs a new Color32 with given r, g, b, a components.

Source/Engine/Core/Math/Half.h

@@ -121,9 +121,7 @@ public:
     /// <summary>
     /// Default constructor
     /// </summary>
-    Half2()
-    {
-    }
+    Half2() = default;
 
     /// <summary>
     /// Init
@@ -185,9 +183,7 @@ public:
     Half Z;
 
 public:
-    Half3()
-    {
-    }
+    Half3() = default;
 
     Half3(Half x, Half y, Half z)
         : X(x)
@@ -242,9 +238,7 @@ public:
     Half W;
 
 public:
-    Half4()
-    {
-    }
+    Half4() = default;
 
     Half4(Half x, Half y, Half z, Half w)
         : X(x)

Source/Engine/Core/Math/Mathd.cs

@@ -876,38 +876,54 @@ namespace FlaxEngine
         /// <summary>
         /// Given a heading which may be outside the +/- PI range, 'unwind' it back into that range.
         /// </summary>
+        /// <remarks>Optimized version of <see cref="UnwindRadiansAccurate"/> that is it faster and has fixed cost but with large angle values (100 for example) starts to lose accuracy floating point problem.</remarks>
         /// <param name="angle">Angle in radians to unwind.</param>
         /// <returns>Valid angle in radians.</returns>
         public static double UnwindRadians(double angle)
         {
-            // TODO: make it faster?
+            var a = angle - Math.Floor(angle / TwoPi) * TwoPi; // Loop function between 0 and TwoPi
+            return a > Pi ? a - TwoPi : a; // Change range so it become Pi and -Pi
+        }
+
+        /// <summary>
+        /// The same as <see cref="UnwindRadians"/> but is more computation intensive with large <see href="angle"/> and has better accuracy with large <see href="angle"/>.
+        /// <br>cost of this function is <see href="angle"/> % <see cref="Pi"/></br>
+        /// </summary>
+        /// <param name="angle">Angle in radians to unwind.</param>
+        /// <returns>Valid angle in radians.</returns>
+        public static double UnwindRadiansAccurate(double angle)
+        {
             while (angle > Pi)
-            {
                 angle -= TwoPi;
-            }
             while (angle < -Pi)
-            {
                 angle += TwoPi;
-            }
             return angle;
         }
 
         /// <summary>
-        /// Utility to ensure angle is between +/- 180 degrees by unwinding
+        /// Utility to ensure angle is between +/- 180 degrees by unwinding.
         /// </summary>
+        /// <remarks>Optimized version of <see cref="UnwindDegreesAccurate"/> that is it faster and has fixed cost but with large angle values (100 for example) starts to lose accuracy floating point problem.</remarks>
         /// <param name="angle">Angle in degrees to unwind.</param>
         /// <returns>Valid angle in degrees.</returns>
         public static double UnwindDegrees(double angle)
         {
-            // TODO: make it faster?
-            while (angle > 180.0f)
-            {
-                angle -= 360.0f;
-            }
-            while (angle < -180.0f)
-            {
-                angle += 360.0f;
-            }
+            var a = angle - Math.Floor(angle / 360.0) * 360.0; // Loop function between 0 and 360
+            return a > 180 ? a - 360.0 : a; // Change range so it become 180 and -180
+        }
+
+        /// <summary>
+        /// The same as <see cref="UnwindDegrees"/> but is more computation intensive with large <see href="angle"/> and has better accuracy with large <see href="angle"/>.
+        /// <br>cost of this function is <see href="angle"/> % 180.0f</br>
+        /// </summary>
+        /// <param name="angle">Angle in radians to unwind.</param>
+        /// <returns>Valid angle in radians.</returns>
+        public static double UnwindDegreesAccurate(double angle)
+        {
+            while (angle > 180.0)
+                angle -= 360.0;
+            while (angle < -180.0)
+                angle += 360.0;
             return angle;
         }
 
@@ -927,8 +943,9 @@ namespace FlaxEngine
         /// Interpolates between two values using a linear function by a given amount.
         /// </summary>
         /// <remarks>
-        /// See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and
-        /// http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/
+        /// See:
+        /// <br><seealso href="http://www.encyclopediaofmath.org/index.php/Linear_interpolation"/></br>
+        /// <br><seealso href="http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/"/></br>
         /// </remarks>
         /// <param name="from">Value to interpolate from.</param>
         /// <param name="to">Value to interpolate to.</param>
@@ -944,7 +961,8 @@ namespace FlaxEngine
         /// Performs smooth (cubic Hermite) interpolation between 0 and 1.
         /// </summary>
         /// <remarks>
-        /// See https://en.wikipedia.org/wiki/Smoothstep
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
         /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static double SmoothStep(double amount)
@@ -956,7 +974,8 @@ namespace FlaxEngine
         /// Performs a smooth(er) interpolation between 0 and 1 with 1st and 2nd order derivatives of zero at endpoints.
         /// </summary>
         /// <remarks>
-        /// See https://en.wikipedia.org/wiki/Smoothstep
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
         /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static double SmootherStep(double amount)
@@ -1013,7 +1032,7 @@ namespace FlaxEngine
 
         /// <summary>
         /// Gauss function.
-        /// http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function
+        /// <br><seealso href="http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function"/></br>
         /// </summary>
         /// <param name="amplitude">Curve amplitude.</param>
         /// <param name="x">Position X.</param>

Source/Engine/Core/Math/Mathf.cs

@@ -1176,38 +1176,54 @@ namespace FlaxEngine
         /// <summary>
         /// Given a heading which may be outside the +/- PI range, 'unwind' it back into that range.
         /// </summary>
+        /// <remarks>Optimized version of <see cref="UnwindRadiansAccurate"/> that is it faster and has fixed cost but with large angle values (100 for example) starts to lose accuracy floating point problem.</remarks>
         /// <param name="angle">Angle in radians to unwind.</param>
         /// <returns>Valid angle in radians.</returns>
         public static float UnwindRadians(float angle)
         {
-            // TODO: make it faster?
+            var a = angle - (float)Math.Floor(angle / TwoPi) * TwoPi; // Loop function between 0 and TwoPi
+            return a > Pi ? a - TwoPi : a; // Change range so it become Pi and -Pi
+        }
+
+        /// <summary>
+        /// The same as <see cref="UnwindRadians"/> but is more computation intensive with large <see href="angle"/> and has better accuracy with large <see href="angle"/>.
+        /// <br>cost of this function is <see href="angle"/> % <see cref="Pi"/></br>
+        /// </summary>
+        /// <param name="angle">Angle in radians to unwind.</param>
+        /// <returns>Valid angle in radians.</returns>
+        public static float UnwindRadiansAccurate(float angle)
+        {
             while (angle > Pi)
-            {
                 angle -= TwoPi;
-            }
             while (angle < -Pi)
-            {
                 angle += TwoPi;
-            }
             return angle;
         }
 
         /// <summary>
-        /// Utility to ensure angle is between +/- 180 degrees by unwinding
+        /// Utility to ensure angle is between +/- 180 degrees by unwinding.
         /// </summary>
+        /// <remarks>Optimized version of <see cref="UnwindDegreesAccurate"/> that is it faster and has fixed cost but with large angle values (100 for example) starts to lose accuracy floating point problem.</remarks>
         /// <param name="angle">Angle in degrees to unwind.</param>
         /// <returns>Valid angle in degrees.</returns>
         public static float UnwindDegrees(float angle)
         {
-            // TODO: make it faster?
+            var a = angle - (float)Math.Floor(angle / 360.0f) * 360.0f; // Loop function between 0 and 360
+            return a > 180 ? a - 360.0f : a; // Change range so it become 180 and -180
+        }
+
+        /// <summary>
+        /// The same as <see cref="UnwindDegrees"/> but is more computation intensive with large <see href="angle"/> and has better accuracy with large <see href="angle"/>.
+        /// <br>cost of this function is <see href="angle"/> % 180.0f</br>
+        /// </summary>
+        /// <param name="angle">Angle in radians to unwind.</param>
+        /// <returns>Valid angle in radians.</returns>
+        public static float UnwindDegreesAccurate(float angle)
+        {
             while (angle > 180.0f)
-            {
                 angle -= 360.0f;
-            }
             while (angle < -180.0f)
-            {
                 angle += 360.0f;
-            }
             return angle;
         }
 
@@ -1299,8 +1315,12 @@ namespace FlaxEngine
         /// <summary>
         /// Interpolates between two values using a linear function by a given amount.
         /// </summary>
-        /// <remarks>See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/</remarks>
-        /// <param name="from">Value to interpolate from.</param>
+        /// <remarks>
+        /// See:
+        /// <br><seealso href="http://www.encyclopediaofmath.org/index.php/Linear_interpolation"/></br>
+        /// <br><seealso href="http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/"/></br>
+        /// </remarks>
+        /// /// <param name="from">Value to interpolate from.</param>
         /// <param name="to">Value to interpolate to.</param>
         /// <param name="amount">Interpolation amount.</param>
         /// <returns>The result of linear interpolation of values based on the amount.</returns>
@@ -1312,8 +1332,12 @@ namespace FlaxEngine
         /// <summary>
         /// Interpolates between two values using a linear function by a given amount.
         /// </summary>
-        /// <remarks>See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/</remarks>
-        /// <param name="from">Value to interpolate from.</param>
+        /// <remarks>
+        /// See:
+        /// <br><seealso href="http://www.encyclopediaofmath.org/index.php/Linear_interpolation"/></br>
+        /// <br><seealso href="http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/"/></br>
+        /// </remarks>       
+        /// /// <param name="from">Value to interpolate from.</param>
         /// <param name="to">Value to interpolate to.</param>
         /// <param name="amount">Interpolation amount.</param>
         /// <returns>The result of linear interpolation of values based on the amount.</returns>
@@ -1325,8 +1349,12 @@ namespace FlaxEngine
         /// <summary>
         /// Interpolates between two values using a linear function by a given amount.
         /// </summary>
-        /// <remarks>See http://www.encyclopediaofmath.org/index.php/Linear_interpolation and http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/</remarks>
-        /// <param name="from">Value to interpolate from.</param>
+        /// <remarks>
+        /// See:
+        /// <br><seealso href="http://www.encyclopediaofmath.org/index.php/Linear_interpolation"/></br>
+        /// <br><seealso href="http://fgiesen.wordpress.com/2012/08/15/linear-interpolation-past-present-and-future/"/></br>
+        /// </remarks>
+        /// /// <param name="from">Value to interpolate from.</param>
         /// <param name="to">Value to interpolate to.</param>
         /// <param name="amount">Interpolation amount.</param>
         /// <returns>The result of linear interpolation of values based on the amount.</returns>
@@ -1338,7 +1366,10 @@ namespace FlaxEngine
         /// <summary>
         /// Performs smooth (cubic Hermite) interpolation between 0 and 1.
         /// </summary>
-        /// <remarks>See https://en.wikipedia.org/wiki/Smoothstep</remarks>
+        /// <remarks>
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
+        /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static float SmoothStep(float amount)
         {
@@ -1348,7 +1379,10 @@ namespace FlaxEngine
         /// <summary>
         /// Performs smooth (cubic Hermite) interpolation between 0 and 1.
         /// </summary>
-        /// <remarks>See https://en.wikipedia.org/wiki/Smoothstep</remarks>
+        /// <remarks>
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
+        /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static double SmoothStep(double amount)
         {
@@ -1358,7 +1392,10 @@ namespace FlaxEngine
         /// <summary>
         /// Performs a smooth(er) interpolation between 0 and 1 with 1st and 2nd order derivatives of zero at endpoints.
         /// </summary>
-        /// <remarks>See https://en.wikipedia.org/wiki/Smoothstep</remarks>
+        /// <remarks>
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
+        /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static float SmootherStep(float amount)
         {
@@ -1368,7 +1405,10 @@ namespace FlaxEngine
         /// <summary>
         /// Performs a smooth(er) interpolation between 0 and 1 with 1st and 2nd order derivatives of zero at endpoints.
         /// </summary>
-        /// <remarks>See https://en.wikipedia.org/wiki/Smoothstep</remarks>
+        /// <remarks>
+        /// See: 
+        /// <br><seealso href="https://en.wikipedia.org/wiki/Smoothstep"/></br>
+        /// </remarks>
         /// <param name="amount">Value between 0 and 1 indicating interpolation amount.</param>
         public static double SmootherStep(double amount)
         {
@@ -1446,7 +1486,7 @@ namespace FlaxEngine
 
         /// <summary>
         /// Gauss function.
-        /// http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function
+        /// <br><seealso href="http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function"/></br>
         /// </summary>
         /// <param name="amplitude">Curve amplitude.</param>
         /// <param name="x">Position X.</param>
@@ -1463,7 +1503,7 @@ namespace FlaxEngine
 
         /// <summary>
         /// Gauss function.
-        /// http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function
+        /// <br><seealso href="http://en.wikipedia.org/wiki/Gaussian_function#Two-dimensional_Gaussian_function"/></br>
         /// </summary>
         /// <param name="amplitude">Curve amplitude.</param>
         /// <param name="x">Position X.</param>

Source/Engine/Core/Math/Matrix.h

@@ -83,9 +83,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Matrix()
-    {
-    }
+    Matrix() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Matrix"/> struct.

Source/Engine/Core/Math/Matrix3x3.h

@@ -63,9 +63,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Matrix3x3()
-    {
-    }
+    Matrix3x3() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Matrix3x3"/> struct.

Source/Engine/Core/Math/Plane.h

@@ -30,9 +30,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Plane()
-    {
-    }
+    Plane() = default;
 
     /// <summary>
     /// Init

Source/Engine/Core/Math/Quaternion.h

@@ -67,9 +67,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Quaternion()
-    {
-    }
+    Quaternion() = default;
 
     /// <summary>
     /// Init

Source/Engine/Core/Math/Ray.h

@@ -35,9 +35,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Ray()
-    {
-    }
+    Ray() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Ray"/> struct.

Source/Engine/Core/Math/Rectangle.h

@@ -31,9 +31,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Rectangle()
-    {
-    }
+    Rectangle() = default;
 
     // Init
     // @param x Rectangle location X coordinate

Source/Engine/Core/Math/Transform.h

@@ -40,9 +40,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Transform()
-    {
-    }
+    Transform() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Transform"/> struct.

Source/Engine/Core/Math/Triangle.h

@@ -30,9 +30,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Triangle()
-    {
-    }
+    Triangle() = default;
 
     /// <summary>
     /// Initializes a new instance of the <see cref="Triangle"/> struct.

Source/Engine/Core/Math/Vector2.h

@@ -60,9 +60,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Vector2Base()
-    {
-    }
+    Vector2Base() = default;
 
     FORCE_INLINE Vector2Base(T xy)
         : X(xy)

Source/Engine/Core/Math/Vector3.h

@@ -89,9 +89,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Vector3Base()
-    {
-    }
+    Vector3Base() = default;
 
     FORCE_INLINE Vector3Base(T xyz)
         : X(xyz)

Source/Engine/Core/Math/Vector4.h

@@ -76,9 +76,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Vector4Base()
-    {
-    }
+    Vector4Base() = default;
 
     FORCE_INLINE Vector4Base(T xyzw)
         : X(xyzw)

Source/Engine/Core/Math/Viewport.h

@@ -52,9 +52,7 @@ public:
     /// <summary>
     /// Empty constructor.
     /// </summary>
-    Viewport()
-    {
-    }
+    Viewport() = default;
 
     // Init
     // @param x The x coordinate of the upper-left corner of the viewport in pixels

Source/Engine/Core/Types/Span.h

@@ -115,6 +115,12 @@ inline Span<T> ToSpan(const T* ptr, int32 length)
     return Span<T>(ptr, length);
 }
 
+template<typename T, typename U = T, typename AllocationType = HeapAllocation>
+inline Span<U> ToSpan(const Array<T, AllocationType>& data)
+{
+    return Span<U>((U*)data.Get(), data.Count());
+}
+
 template<typename T>
 inline bool SpanContains(const Span<T> span, const T& value)
 {

Source/Engine/Core/Types/Variant.cpp

@@ -2796,6 +2796,122 @@ String Variant::ToString() const
     }
 }
 
+void Variant::Inline()
+{
+    VariantType::Types type = VariantType::Null;
+    byte data[sizeof(Matrix)];
+    if (Type.Type == VariantType::Structure && AsBlob.Data && AsBlob.Length <= sizeof(Matrix))
+    {
+        for (int32 i = 2; i < VariantType::MAX; i++)
+        {
+            if (StringUtils::Compare(Type.TypeName, InBuiltTypesTypeNames[i]) == 0)
+            {
+                type = (VariantType::Types)i;
+                break;
+            }
+        }
+        if (type == VariantType::Null)
+        {
+            // Aliases
+            if (StringUtils::Compare(Type.TypeName, "FlaxEngine.Vector2") == 0)
+                type = VariantType::Types::Vector2;
+            else if (StringUtils::Compare(Type.TypeName, "FlaxEngine.Vector3") == 0)
+                type = VariantType::Types::Vector3;
+            else if (StringUtils::Compare(Type.TypeName, "FlaxEngine.Vector4") == 0)
+                type = VariantType::Types::Vector4;
+        }
+        if (type != VariantType::Null)
+            Platform::MemoryCopy(data, AsBlob.Data, AsBlob.Length);
+    }
+    if (type != VariantType::Null)
+    {
+        switch (type)
+        {
+        case VariantType::Bool:
+            *this = *(bool*)data;
+            break;
+        case VariantType::Int:
+            *this = *(int32*)data;
+            break;
+        case VariantType::Uint:
+            *this = *(uint32*)data;
+            break;
+        case VariantType::Int64:
+            *this = *(int64*)data;
+            break;
+        case VariantType::Uint64:
+            *this = *(uint64*)data;
+            break;
+        case VariantType::Float:
+            *this = *(float*)data;
+            break;
+        case VariantType::Double:
+            *this = *(double*)data;
+            break;
+        case VariantType::Float2:
+            *this = *(Float2*)data;
+            break;
+        case VariantType::Float3:
+            *this = *(Float3*)data;
+            break;
+        case VariantType::Float4:
+            *this = *(Float4*)data;
+            break;
+        case VariantType::Color:
+            *this = *(Color*)data;
+            break;
+        case VariantType::Guid:
+            *this = *(Guid*)data;
+            break;
+        case VariantType::BoundingBox:
+            *this = Variant(*(BoundingBox*)data);
+            break;
+        case VariantType::BoundingSphere:
+            *this = *(BoundingSphere*)data;
+            break;
+        case VariantType::Quaternion:
+            *this = *(Quaternion*)data;
+            break;
+        case VariantType::Transform:
+            *this = Variant(*(Transform*)data);
+            break;
+        case VariantType::Rectangle:
+            *this = *(Rectangle*)data;
+            break;
+        case VariantType::Ray:
+            *this = Variant(*(Ray*)data);
+            break;
+        case VariantType::Matrix:
+            *this = Variant(*(Matrix*)data);
+            break;
+        case VariantType::Int2:
+            *this = *(Int2*)data;
+            break;
+        case VariantType::Int3:
+            *this = *(Int3*)data;
+            break;
+        case VariantType::Int4:
+            *this = *(Int4*)data;
+            break;
+        case VariantType::Int16:
+            *this = *(int16*)data;
+            break;
+        case VariantType::Uint16:
+            *this = *(uint16*)data;
+            break;
+        case VariantType::Double2:
+            *this = *(Double2*)data;
+            break;
+        case VariantType::Double3:
+            *this = *(Double3*)data;
+            break;
+        case VariantType::Double4:
+            *this = *(Double4*)data;
+            break;
+        }
+    }
+}
+
 bool Variant::CanCast(const Variant& v, const VariantType& to)
 {
     if (v.Type == to)
@@ -3682,6 +3798,7 @@ void Variant::AllocStructure()
         const ScriptingType& type = typeHandle.GetType();
         AsBlob.Length = type.Size;
         AsBlob.Data = Allocator::Allocate(AsBlob.Length);
+        Platform::MemoryClear(AsBlob.Data, AsBlob.Length);
         type.Struct.Ctor(AsBlob.Data);
     }
     else if (typeName == "System.Int16" || typeName == "System.UInt16")

Source/Engine/Core/Types/Variant.h

@@ -359,6 +359,9 @@ public:
     void SetAsset(Asset* asset);
     String ToString() const;
 
+    // Inlines potential value type into in-built format (eg. Vector3 stored as Structure, or String stored as ManagedObject).
+    void Inline();
+
     FORCE_INLINE Variant Cast(const VariantType& to) const
     {
         return Cast(*this, to);

Source/Engine/Core/Types/Version.h

@@ -72,15 +72,6 @@ public:
         return _major;
     }
 
-    /// <summary>
-    /// Gets the high 16 bits of the revision number.
-    /// </summary>
-    /// <returns>A 16-bit signed integer.</returns>
-    FORCE_INLINE int16 MajorRevision() const
-    {
-        return static_cast<int16>(_revision >> 16);
-    }
-
     /// <summary>
     /// Gets the value of the minor component of the version number for the current Version object.
     /// </summary>
@@ -90,15 +81,6 @@ public:
         return _minor;
     }
 
-    /// <summary>
-    /// Gets the low 16 bits of the revision number.
-    /// </summary>
-    /// <returns>A 16-bit signed integer.</returns>
-    FORCE_INLINE int16 MinorRevision() const
-    {
-        return static_cast<int16>(_revision & 65535);
-    }
-
     /// <summary>
     /// Gets the value of the revision component of the version number for the current Version object.
     /// </summary>
@@ -126,61 +108,26 @@ public:
         return _major == obj._major && _minor == obj._minor && _build == obj._build && _revision == obj._revision;
     }
 
-    /// <summary>
-    /// Determines whether two specified Version objects are equal.
-    /// </summary>
-    /// <param name="other">The other Version object.</param>
-    /// <returns>True if <paramref name="v1" /> equals <paramref name="v2" />; otherwise, false.</returns>
     FORCE_INLINE bool operator==(const Version& other) const
     {
         return Equals(other);
     }
-
-    /// <summary>
-    /// Determines whether the first specified Version object is greater than the second specified Version object.
-    /// </summary>
-    /// <param name="other">The first Version object.</param>
-    /// <returns>True if <paramref name="v1" /> is greater than <paramref name="v2" />; otherwise, false.</returns>
-    FORCE_INLINE bool operator >(const Version& other) const
+    FORCE_INLINE bool operator>(const Version& other) const
     {
         return other < *this;
     }
-
-    /// <summary>
-    /// Determines whether the first specified Version object is greater than or equal to the second specified Version object.
-    /// /summary>
-    /// <param name="other">The other Version object.</param>
-    /// <returns>True if <paramref name="v1" /> is greater than or equal to <paramref name="v2" />; otherwise, false.</returns>
-    FORCE_INLINE bool operator >=(const Version& other) const
+    FORCE_INLINE bool operator>=(const Version& other) const
     {
         return other <= *this;
     }
-
-    /// <summary>
-    /// Determines whether two specified Version objects are not equal.
-    /// </summary>
-    /// <param name="other">The other Version object.</param>
-    /// <returns>True if <paramref name="v1" /> does not equal <paramref name="v2" />; otherwise, false.</returns>
     FORCE_INLINE bool operator!=(const Version& other) const
     {
         return !(*this == other);
     }
-
-    /// <summary>
-    /// Determines whether the first specified Version object is less than the second specified Version object.
-    /// </summary>
-    /// <param name="other">The first other object.</param>
-    /// <returns>True if <paramref name="v1" /> is less than <paramref name="v2" />; otherwise, false.</returns>
     FORCE_INLINE bool operator<(const Version& other) const
     {
         return CompareTo(other) < 0;
     }
-
-    /// <summary>
-    /// Determines whether the first specified Version object is less than or equal to the second Version object.
-    /// </summary>
-    /// <param name="other">The other Version object.</param>
-    /// <returns>True if <paramref name="v1" /> is less than or equal to <paramref name="v2" />; otherwise, false.</returns>
     FORCE_INLINE bool operator<=(const Version& other) const
     {
         return CompareTo(other) <= 0;

Source/Engine/Engine/NativeInterop.Managed.cs

@@ -274,12 +274,12 @@ namespace FlaxEngine.Interop
 #if FLAX_EDITOR
     [HideInEditor]
 #endif
-    internal static class ManagedString
+    public static class ManagedString
     {
         internal static ManagedHandle EmptyStringHandle = ManagedHandle.Alloc(string.Empty);
 
         [System.Diagnostics.DebuggerStepThrough]
-        internal static unsafe IntPtr ToNative(string str)
+        public static unsafe IntPtr ToNative(string str)
         {
             if (str == null)
                 return IntPtr.Zero;
@@ -290,7 +290,7 @@ namespace FlaxEngine.Interop
         }
 
         [System.Diagnostics.DebuggerStepThrough]
-        internal static unsafe IntPtr ToNativeWeak(string str)
+        public static unsafe IntPtr ToNativeWeak(string str)
         {
             if (str == null)
                 return IntPtr.Zero;
@@ -301,7 +301,7 @@ namespace FlaxEngine.Interop
         }
 
         [System.Diagnostics.DebuggerStepThrough]
-        internal static string ToManaged(IntPtr ptr)
+        public static string ToManaged(IntPtr ptr)
         {
             if (ptr == IntPtr.Zero)
                 return null;
@@ -309,7 +309,7 @@ namespace FlaxEngine.Interop
         }
 
         [System.Diagnostics.DebuggerStepThrough]
-        internal static void Free(IntPtr ptr)
+        public static void Free(IntPtr ptr)
         {
             if (ptr == IntPtr.Zero)
                 return;

Source/Engine/Engine/NativeInterop.Unmanaged.cs

@@ -244,7 +244,25 @@ namespace FlaxEngine.Interop
                 @namespace = NativeAllocStringAnsi(type.Namespace ?? ""),
                 typeAttributes = (uint)type.Attributes,
             };
-            *assemblyHandle = GetAssemblyHandle(type.Assembly);
+
+            Assembly assembly = null;
+            if (type.IsGenericType && !type.Assembly.IsCollectible)
+            {
+                // The owning assembly of a generic type with type arguments referencing
+                // collectible assemblies must be one of the collectible assemblies.
+                foreach (var genericType in type.GetGenericArguments())
+                {
+                    if (genericType.Assembly.IsCollectible)
+                    {
+                        assembly = genericType.Assembly;
+                        break;
+                    }
+                }
+            }
+            if (assembly == null)
+                assembly = type.Assembly;
+
+            *assemblyHandle = GetAssemblyHandle(assembly);
         }
 
         [UnmanagedCallersOnly]

Source/Engine/Engine/NativeInterop.cs

@@ -444,7 +444,7 @@ namespace FlaxEngine.Interop
                                 }
                                 else
                                 {
-                                    toManagedFieldMethod = typeof(MarshalHelper<>.ReferenceTypeField<>).MakeGenericType(type, fieldType).GetMethod(nameof(MarshalHelper<T>.ReferenceTypeField<ReferenceTypePlaceholder>.ToManagedField), bindingFlags);
+                                    toManagedFieldMethod = typeof(MarshalHelper<>.ReferenceTypeField<>).MakeGenericType(type, arrayElementType).GetMethod(nameof(MarshalHelper<T>.ReferenceTypeField<ReferenceTypePlaceholder>.ToManagedFieldArray), bindingFlags);
                                     toNativeFieldMethod = typeof(MarshalHelper<>.ReferenceTypeField<>).MakeGenericType(type, fieldType).GetMethod(nameof(MarshalHelper<T>.ReferenceTypeField<ReferenceTypePlaceholder>.ToNativeField), bindingFlags);
                                 }
                             }
@@ -663,6 +663,17 @@ namespace FlaxEngine.Interop
                     MarshalHelperReferenceType<TField>.ToManaged(ref fieldValueRef, Unsafe.Read<IntPtr>(fieldPtr.ToPointer()), false);
                 }
 
+                internal static void ToManagedFieldArray(FieldInfo field, ref T fieldOwner, IntPtr fieldPtr, out int fieldOffset)
+                {
+                    fieldOffset = Unsafe.SizeOf<IntPtr>();
+                    IntPtr fieldStartPtr = fieldPtr;
+                    fieldPtr = EnsureAlignment(fieldPtr, IntPtr.Size);
+                    fieldOffset += (fieldPtr - fieldStartPtr).ToInt32();
+
+                    ref TField[] fieldValueRef = ref GetFieldReference<TField[]>(field, ref fieldOwner);
+                    MarshalHelperReferenceType<TField>.ToManagedArray(ref fieldValueRef, Unsafe.Read<IntPtr>(fieldPtr.ToPointer()), false);
+                }
+
                 internal static void ToNativeField(FieldInfo field, ref T fieldOwner, IntPtr fieldPtr, out int fieldOffset)
                 {
                     fieldOffset = Unsafe.SizeOf<IntPtr>();
@@ -691,14 +702,15 @@ namespace FlaxEngine.Interop
             internal static void ToManaged(ref T managedValue, IntPtr nativePtr, bool byRef)
             {
                 Type type = typeof(T);
-                if (type.IsByRef || byRef)
+                byRef |= type.IsByRef;
+                if (byRef)
                 {
                     if (type.IsByRef)
                         type = type.GetElementType();
                     Assert.IsTrue(type.IsValueType);
                 }
 
-                if (type == typeof(IntPtr))
+                if (type == typeof(IntPtr) && byRef)
                     managedValue = (T)(object)nativePtr;
                 else if (type == typeof(ManagedHandle))
                     managedValue = (T)(object)ManagedHandle.FromIntPtr(nativePtr);
@@ -778,10 +790,12 @@ namespace FlaxEngine.Interop
 
                 if (type == typeof(string))
                     managedValue = Unsafe.As<T>(ManagedString.ToManaged(nativePtr));
+                else if (nativePtr == IntPtr.Zero)
+                    managedValue = null;
                 else if (type.IsClass)
-                    managedValue = nativePtr != IntPtr.Zero ? Unsafe.As<T>(ManagedHandle.FromIntPtr(nativePtr).Target) : null;
+                    managedValue = Unsafe.As<T>(ManagedHandle.FromIntPtr(nativePtr).Target);
                 else if (type.IsInterface) // Dictionary
-                    managedValue = nativePtr != IntPtr.Zero ? Unsafe.As<T>(ManagedHandle.FromIntPtr(nativePtr).Target) : null;
+                    managedValue = Unsafe.As<T>(ManagedHandle.FromIntPtr(nativePtr).Target);
                 else
                     throw new NotImplementedException();
             }

Source/Engine/Graphics/GPUDevice.h

@@ -238,7 +238,7 @@ public:
     /// <summary>
     /// Gets the default material.
     /// </summary>
-    MaterialBase* GetDefaultMaterial() const;
+    API_PROPERTY() MaterialBase* GetDefaultMaterial() const;
 
     /// <summary>
     /// Gets the default material (Deformable domain).

Source/Engine/Level/Actor.cpp

@@ -788,7 +788,9 @@ void Actor::BreakPrefabLink()
 
 void Actor::Initialize()
 {
-    ASSERT(!IsDuringPlay());
+#if ENABLE_ASSERTION
+    CHECK(!IsDuringPlay());
+#endif
 
     // Cache
     if (_parent)
@@ -802,7 +804,9 @@ void Actor::Initialize()
 
 void Actor::BeginPlay(SceneBeginData* data)
 {
-    ASSERT(!IsDuringPlay());
+#if ENABLE_ASSERTION
+    CHECK(!IsDuringPlay());
+#endif
 
     // Set flag
     Flags |= ObjectFlags::IsDuringPlay;
@@ -832,7 +836,9 @@ void Actor::BeginPlay(SceneBeginData* data)
 
 void Actor::EndPlay()
 {
-    ASSERT(IsDuringPlay());
+#if ENABLE_ASSERTION
+    CHECK(IsDuringPlay());
+#endif
 
     // Fire event for scripting
     if (IsActiveInHierarchy() && GetScene())
@@ -1059,7 +1065,9 @@ void Actor::Deserialize(DeserializeStream& stream, ISerializeModifier* modifier)
 
 void Actor::OnEnable()
 {
-    ASSERT(!_isEnabled);
+#if ENABLE_ASSERTION
+    CHECK(!_isEnabled);
+#endif
     _isEnabled = true;
 
     for (int32 i = 0; i < Scripts.Count(); i++)
@@ -1079,7 +1087,9 @@ void Actor::OnEnable()
 
 void Actor::OnDisable()
 {
-    ASSERT(_isEnabled);
+#if ENABLE_ASSERTION
+    CHECK(_isEnabled);
+#endif
     _isEnabled = false;
 
     for (int32 i = Scripts.Count() - 1; i >= 0; i--)

Source/Engine/Level/Actors/AnimatedModel.cpp

@@ -898,6 +898,14 @@ void AnimatedModel::Deserialize(DeserializeStream& stream, ISerializeModifier* m
         DrawModes |= DrawPass::GlobalSurfaceAtlas;
 }
 
+const Span<MaterialSlot> AnimatedModel::GetMaterialSlots() const
+{
+    const auto model = SkinnedModel.Get();
+    if (model && !model->WaitForLoaded())
+        return ToSpan(model->MaterialSlots);
+    return Span<MaterialSlot>();
+}
+
 MaterialBase* AnimatedModel::GetMaterial(int32 entryIndex)
 {
     if (SkinnedModel)

Source/Engine/Level/Actors/AnimatedModel.h

@@ -373,6 +373,7 @@ public:
     bool IntersectsItself(const Ray& ray, Real& distance, Vector3& normal) override;
     void Serialize(SerializeStream& stream, const void* otherObj) override;
     void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) override;
+    const Span<MaterialSlot> GetMaterialSlots() const override;
     MaterialBase* GetMaterial(int32 entryIndex) override;
     bool IntersectsEntry(int32 entryIndex, const Ray& ray, Real& distance, Vector3& normal) override;
     bool IntersectsEntry(const Ray& ray, Real& distance, Vector3& normal, int32& entryIndex) override;

Source/Engine/Level/Actors/ModelInstanceActor.h

@@ -35,6 +35,11 @@ public:
     /// </summary>
     API_PROPERTY() void SetEntries(const Array<ModelInstanceEntry>& value);
 
+    /// <summary>
+    /// Gets the material slots array set on the asset (eg. model or skinned model asset).
+    /// </summary>
+    API_PROPERTY(Sealed) virtual const Span<class MaterialSlot> GetMaterialSlots() const = 0;
+
     /// <summary>
     /// Gets the material used to draw the meshes which are assigned to that slot (set in Entries or model's default).
     /// </summary>

Source/Engine/Level/Actors/SplineModel.cpp

@@ -341,6 +341,14 @@ void SplineModel::OnParentChanged()
     OnSplineUpdated();
 }
 
+const Span<MaterialSlot> SplineModel::GetMaterialSlots() const
+{
+    const auto model = Model.Get();
+    if (model && !model->WaitForLoaded())
+        return ToSpan(model->MaterialSlots);
+    return Span<MaterialSlot>();
+}
+
 MaterialBase* SplineModel::GetMaterial(int32 entryIndex)
 {
     if (Model)

Source/Engine/Level/Actors/SplineModel.h

@@ -115,6 +115,7 @@ public:
     void Serialize(SerializeStream& stream, const void* otherObj) override;
     void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) override;
     void OnParentChanged() override;
+    const Span<MaterialSlot> GetMaterialSlots() const override;
     MaterialBase* GetMaterial(int32 entryIndex) override;
 
 protected:

Source/Engine/Level/Actors/StaticModel.cpp

@@ -535,6 +535,14 @@ void StaticModel::Deserialize(DeserializeStream& stream, ISerializeModifier* mod
     }
 }
 
+const Span<MaterialSlot> StaticModel::GetMaterialSlots() const
+{
+    const auto model = Model.Get();
+    if (model && !model->WaitForLoaded())
+        return ToSpan(model->MaterialSlots);
+    return Span<MaterialSlot>();
+}
+
 MaterialBase* StaticModel::GetMaterial(int32 entryIndex)
 {
     if (Model)

Source/Engine/Level/Actors/StaticModel.h

@@ -166,6 +166,7 @@ public:
     bool IntersectsItself(const Ray& ray, Real& distance, Vector3& normal) override;
     void Serialize(SerializeStream& stream, const void* otherObj) override;
     void Deserialize(DeserializeStream& stream, ISerializeModifier* modifier) override;
+    const Span<MaterialSlot> GetMaterialSlots() const override;
     MaterialBase* GetMaterial(int32 entryIndex) override;
     bool IntersectsEntry(int32 entryIndex, const Ray& ray, Real& distance, Vector3& normal) override;
     bool IntersectsEntry(const Ray& ray, Real& distance, Vector3& normal, int32& entryIndex) override;

Source/Engine/Particles/Graph/CPU/ParticleEmitterGraph.CPU.Particles.cpp

@@ -189,7 +189,7 @@ void ParticleEmitterGraphCPUExecutor::ProcessGroupTools(Box* box, Node* node, Va
         const Matrix viewProjection = context.ViewTask ? context.ViewTask->View.PrevViewProjection : Matrix::Identity;
         const Float3 position = (Float3)TryGetValue(node->GetBox(0), Value::Zero);
         Float4 projPos;
-        Float3::Transform(position, viewProjection);
+        Float3::Transform(position, viewProjection, projPos);
         projPos /= projPos.W;
         value = Float2(projPos.X * 0.5f + 0.5f, projPos.Y * 0.5f + 0.5f);
         break;

Source/Engine/Platform/Mac/MacPlatform.cpp

@@ -56,36 +56,94 @@ DialogResult MessageBox::Show(Window* parent, const StringView& text, const Stri
 {
     if (CommandLine::Options.Headless)
         return DialogResult::None;
-    CFStringRef textRef = AppleUtils::ToString(text);
-    CFStringRef captionRef = AppleUtils::ToString(caption);
-    CFOptionFlags flags = 0;
+	NSAlert* alert = [[NSAlert alloc] init];
+    ASSERT(alert);
     switch (buttons)
     {
     case MessageBoxButtons::AbortRetryIgnore:
+        [alert addButtonWithTitle:@"Abort"];
+        [alert addButtonWithTitle:@"Retry"];
+        [alert addButtonWithTitle:@"Ignore"];
+        break;
+    case MessageBoxButtons::OK:
+        [alert addButtonWithTitle:@"OK"];
+        break;
     case MessageBoxButtons::OKCancel:
+        [alert addButtonWithTitle:@"OK"];
+        [alert addButtonWithTitle:@"Cancel"];
+        break;
     case MessageBoxButtons::RetryCancel:
+        [alert addButtonWithTitle:@"Retry"];
+        [alert addButtonWithTitle:@"Cancel"];
+        break;
     case MessageBoxButtons::YesNo:
+        [alert addButtonWithTitle:@"Yes"];
+        [alert addButtonWithTitle:@"No"];
+        break;
     case MessageBoxButtons::YesNoCancel:
-        flags |= kCFUserNotificationCancelResponse;
+        [alert addButtonWithTitle:@"Yes"];
+        [alert addButtonWithTitle:@"No"];
+        [alert addButtonWithTitle:@"Cancel"];
         break;
     }
     switch (icon)
     {
     case MessageBoxIcon::Information:
-        flags |= kCFUserNotificationNoteAlertLevel;
+	    [alert setAlertStyle:NSAlertStyleCritical];
         break;
     case MessageBoxIcon::Error:
     case MessageBoxIcon::Stop:
-        flags |= kCFUserNotificationStopAlertLevel;
+	    [alert setAlertStyle:NSAlertStyleInformational];
         break;
     case MessageBoxIcon::Warning:
-        flags |= kCFUserNotificationCautionAlertLevel;
+	    [alert setAlertStyle:NSAlertStyleWarning];
         break;
     }
-    SInt32 result = CFUserNotificationDisplayNotice(0, flags, nullptr, nullptr, nullptr, captionRef, textRef, nullptr);
-    CFRelease(captionRef);
-    CFRelease(textRef);
-    return DialogResult::OK;
+	[alert setMessageText:(NSString*)AppleUtils::ToString(caption)];
+	[alert setInformativeText:(NSString*)AppleUtils::ToString(text)];
+	NSInteger button = [alert runModal];
+    DialogResult result = DialogResult::OK;
+    switch (buttons)
+    {
+    case MessageBoxButtons::AbortRetryIgnore:
+        if (button == NSAlertFirstButtonReturn)
+            result = DialogResult::Abort;
+        else if (button == NSAlertSecondButtonReturn)
+            result = DialogResult::Retry;
+        else
+            result = DialogResult::Ignore;
+        break;
+    case MessageBoxButtons::OK:
+        result = DialogResult::OK;
+        break;
+    case MessageBoxButtons::OKCancel:
+        if (button == NSAlertFirstButtonReturn)
+            result = DialogResult::OK;
+        else
+            result = DialogResult::Cancel;
+        break;
+    case MessageBoxButtons::RetryCancel:
+        if (button == NSAlertFirstButtonReturn)
+            result = DialogResult::Retry;
+        else
+            result = DialogResult::Cancel;
+        break;
+    case MessageBoxButtons::YesNo:
+        if (button == NSAlertFirstButtonReturn)
+            result = DialogResult::Yes;
+        else
+            result = DialogResult::No;
+        break;
+    case MessageBoxButtons::YesNoCancel:
+        if (button == NSAlertFirstButtonReturn)
+            result = DialogResult::Yes;
+        else if (button == NSAlertSecondButtonReturn)
+            result = DialogResult::No;
+        else
+            result = DialogResult::Cancel;
+        break;
+    }
+    return result;
 }
 
 Float2 AppleUtils::PosToCoca(const Float2& pos)
@@ -301,15 +359,16 @@ Float2 MacPlatform::GetMousePosition()
     CGEventRef event = CGEventCreate(nullptr);
     CGPoint cursor = CGEventGetLocation(event);
     CFRelease(event);
-    return Float2((float)cursor.x, (float)cursor.y);
+    return Float2((float)cursor.x, (float)cursor.y) * MacPlatform::ScreenScale;
 }
 
 void MacPlatform::SetMousePosition(const Float2& pos)
 {
     CGPoint cursor;
-    cursor.x = (CGFloat)pos.X;
-    cursor.y = (CGFloat)pos.Y;
+    cursor.x = (CGFloat)(pos.X / MacPlatform::ScreenScale);
+    cursor.y = (CGFloat)(pos.Y / MacPlatform::ScreenScale);
     CGWarpMouseCursorPosition(cursor);
+    CGAssociateMouseAndMouseCursorPosition(true);
 }
 
 Float2 MacPlatform::GetDesktopSize()

Source/Engine/Platform/Mac/MacWindow.cpp

@@ -72,11 +72,11 @@ KeyboardKeys GetKey(NSEvent* event)
     case 0x30: return KeyboardKeys::Tab;
     case 0x31: return KeyboardKeys::Spacebar;
     case 0x32: return KeyboardKeys::BackQuote;
-    case 0x33: return KeyboardKeys::Delete;
+    case 0x33: return KeyboardKeys::Backspace;
     //case 0x34:
     case 0x35: return KeyboardKeys::Escape;
-    //case 0x36:
-    //case 0x37: Command
+    case 0x36: return KeyboardKeys::Control; // Command (right)
+    case 0x37: return KeyboardKeys::Control; // Command (left)
     case 0x38: return KeyboardKeys::Shift;
     case 0x39: return KeyboardKeys::Capital;
     case 0x3A: return KeyboardKeys::Alt;
@@ -378,7 +378,7 @@ static void ConvertNSRect(NSScreen *screen, NSRect *r)
 {
     KeyboardKeys key = GetKey(event);
     if (key != KeyboardKeys::None)
-	    Input::Keyboard->OnKeyDown(key);
+	    Input::Keyboard->OnKeyDown(key, Window);
 
 	// Send a text input event
     switch (key)
@@ -400,7 +400,7 @@ static void ConvertNSRect(NSScreen *screen, NSRect *r)
         if (length >= 16)
             length = 15;
         [text getCharacters:buffer range:NSMakeRange(0, length)];
-        Input::Keyboard->OnCharInput((Char)buffer[0]);
+        Input::Keyboard->OnCharInput((Char)buffer[0], Window);
     }
 }
 
@@ -408,7 +408,32 @@ static void ConvertNSRect(NSScreen *screen, NSRect *r)
 {
     KeyboardKeys key = GetKey(event);
     if (key != KeyboardKeys::None)
-	    Input::Keyboard->OnKeyUp(key);
+	    Input::Keyboard->OnKeyUp(key, Window);
+}
+
+- (void)flagsChanged:(NSEvent*)event
+{
+    int32 modMask;
+    int32 keyCode = [event keyCode];
+    if (keyCode == 0x36 || keyCode == 0x37)
+		modMask = NSEventModifierFlagCommand;
+	else if (keyCode == 0x38 || keyCode == 0x3c)
+		modMask = NSEventModifierFlagShift;
+	else if (keyCode == 0x3a || keyCode == 0x3d)
+	    modMask = NSEventModifierFlagOption;
+	else if (keyCode == 0x3b || keyCode == 0x3e)
+        modMask = NSEventModifierFlagControl;
+	else
+        return;
+    KeyboardKeys key = GetKey(event);
+    if (key != KeyboardKeys::None)
+    {
+        int32 modifierFlags = [event modifierFlags];
+        if ((modifierFlags & modMask) == modMask)
+	        Input::Keyboard->OnKeyDown(key, Window);
+        else
+	        Input::Keyboard->OnKeyUp(key, Window);
+    }
 }
 
 - (void)scrollWheel:(NSEvent*)event
@@ -643,7 +668,6 @@ MacWindow::MacWindow(const CreateWindowSettings& settings)
     // TODO: impl StartPosition for MacWindow
     // TODO: impl Fullscreen for MacWindow
     // TODO: impl ShowInTaskbar for MacWindow
-    // TODO: impl AllowInput for MacWindow
     // TODO: impl IsTopmost for MacWindow
 }
 

Source/Engine/Renderer/Renderer.cs

@@ -17,10 +17,13 @@ namespace FlaxEngine
         [Unmanaged]
         public static void DrawSceneDepth(GPUContext context, SceneRenderTask task, GPUTexture output, List<Actor> customActors)
         {
-            if (customActors.Count == 0)
-                return;
-            var temp = CollectionsMarshal.AsSpan(customActors).ToArray(); // FIXME
-            var tempCount = temp.Length;
+            Actor[] temp = null;
+            int tempCount = 0;
+            if (customActors != null && customActors.Count != 0)
+            {
+                temp = CollectionsMarshal.AsSpan(customActors).ToArray(); // FIXME
+                tempCount = temp.Length;
+            }
             Internal_DrawSceneDepth(FlaxEngine.Object.GetUnmanagedPtr(context), FlaxEngine.Object.GetUnmanagedPtr(task), FlaxEngine.Object.GetUnmanagedPtr(output), temp, ref tempCount);
         }
 
@@ -32,7 +35,14 @@ namespace FlaxEngine
         [Unmanaged]
         public static void DrawActors(ref RenderContext renderContext, List<Actor> customActors)
         {
-            DrawActors(ref renderContext, Utils.ExtractArrayFromList(customActors));
+            Actor[] temp = null;
+            int tempCount = 0;
+            if (customActors != null && customActors.Count != 0)
+            {
+                temp = CollectionsMarshal.AsSpan(customActors).ToArray(); // FIXME
+                tempCount = temp.Length;
+            }
+            Internal_DrawActors(ref renderContext, temp, ref tempCount);
         }
     }
 }

Source/Engine/Scripting/Attributes/Editor/AssetReferenceAttribute.cs

@@ -53,4 +53,23 @@ namespace FlaxEngine
             UseSmallPicker = useSmallPicker;
         }
     }
+
+#if USE_NETCORE
+    /// <summary>
+    /// Specifies a options for an asset reference picker in the editor. Allows to customize view or provide custom value assign policy.
+    /// </summary>
+    /// <seealso cref="System.Attribute" />
+    [AttributeUsage(AttributeTargets.Field | AttributeTargets.Property)]
+    public class AssetReferenceAttribute<T> : AssetReferenceAttribute
+    {
+        /// <summary>
+        /// Initializes a new instance of the <see cref="AssetReferenceAttribute"/> class for generic type T.
+        /// </summary>
+        /// <param name="useSmallPicker">True if use asset picker with a smaller height (single line), otherwise will use with full icon.</param>
+        public AssetReferenceAttribute(bool useSmallPicker = false)
+            : base(typeof(T), useSmallPicker)
+        {
+        }
+    }
+#endif
 }

Source/Engine/Scripting/Internal/ManagedSerialization.cpp

@@ -108,7 +108,7 @@ void ManagedSerialization::Deserialize(const StringAnsiView& data, MObject* obje
     // Prepare arguments
     void* args[3];
     args[0] = object;
-    args[1] = (void*)str;
+    args[1] = (void*)&str;
     args[2] = (void*)&len;
 
     // Call serialization tool

Source/Engine/Scripting/ManagedCLR/MUtils.cpp

@@ -3,7 +3,6 @@
 #include "MUtils.h"
 #include "MClass.h"
 #include "MCore.h"
-#include "MDomain.h"
 #include "Engine/Core/Log.h"
 #include "Engine/Core/Types/DataContainer.h"
 #include "Engine/Core/Types/Version.h"
@@ -449,7 +448,7 @@ Variant MUtils::UnboxVariant(MObject* value)
                 {
                     auto& a = array[i];
                     a.SetType(elementType);
-                    Platform::MemoryCopy(&a.AsData,(byte*)ptr + elementSize * i, elementSize);
+                    Platform::MemoryCopy(&a.AsData, (byte*)ptr + elementSize * i, elementSize);
                 }
                 break;
             case VariantType::Transform:
@@ -1004,11 +1003,11 @@ MClass* MUtils::GetClass(const Variant& value)
     case VariantType::Enum:
         return Scripting::FindClass(StringAnsiView(value.Type.TypeName));
     case VariantType::ManagedObject:
-        {
-            MObject* obj = (MObject*)value;
-            if (obj)
-                return MCore::Object::GetClass(obj);
-        }
+    {
+        MObject* obj = (MObject*)value;
+        if (obj)
+            return MCore::Object::GetClass(obj);
+    }
     default: ;
     }
     return GetClass(value.Type);
@@ -1224,10 +1223,10 @@ MObject* MUtils::ToManaged(const Version& value)
     auto versionToManaged = scriptingClass->GetMethod("VersionToManaged", 4);
     CHECK_RETURN(versionToManaged, nullptr);
 
-    int major = value.Major();
-    int minor = value.Minor();
-    int build = value.Build();
-    int revision = value.Revision();
+    int32 major = value.Major();
+    int32 minor = value.Minor();
+    int32 build = value.Build();
+    int32 revision = value.Revision();
 
     void* params[4];
     params[0] = &major;
@@ -1244,26 +1243,29 @@ MObject* MUtils::ToManaged(const Version& value)
 
 Version MUtils::ToNative(MObject* value)
 {
+    Version result;
     if (value)
 #if USE_NETCORE
     {
-        auto ver = Version();
-
         auto scriptingClass = Scripting::GetStaticClass();
-        CHECK_RETURN(scriptingClass, ver);
-        auto versionToNative = scriptingClass->GetMethod("VersionToNative", 2);
-        CHECK_RETURN(versionToNative, ver);
+        CHECK_RETURN(scriptingClass, result);
+        auto versionToNative = scriptingClass->GetMethod("VersionToNative", 5);
+        CHECK_RETURN(versionToNative, result);
 
-        void* params[2];
+        void* params[5];
         params[0] = value;
-        params[1] = &ver;
+        params[1] = (byte*)&result;
+        params[2] = (byte*)&result + sizeof(int32);
+        params[3] = (byte*)&result + sizeof(int32) * 2;
+        params[4] = (byte*)&result + sizeof(int32) * 3;
         versionToNative->Invoke(nullptr, params, nullptr);
-        return ver;
+
+        return result;
     }
 #else
         return *(Version*)MCore::Object::Unbox(value);
 #endif
-    return Version();
+    return result;
 }
 
 #endif

Source/Engine/Scripting/Scripting.Build.cs

@@ -17,10 +17,29 @@ public class Scripting : EngineModule
         {
             if (EngineConfiguration.WithDotNet(options))
             {
+                void AddFrameworkDefines(string template, int major, int latestMinor)
+                {
+                    for (int minor = latestMinor; minor >= 0; minor--)
+                    {
+                        options.ScriptingAPI.Defines.Add(string.Format(template, major, minor));
+                        options.ScriptingAPI.Defines.Add(string.Format($"{template}_OR_GREATER", major, minor));
+                    }
+                }
+
                 // .NET
                 options.PrivateDependencies.Add("nethost");
                 options.ScriptingAPI.Defines.Add("USE_NETCORE");
 
+                // .NET SDK
+                AddFrameworkDefines("NET{0}_{1}", 7, 0); // "NET7_0" and "NET7_0_OR_GREATER"
+                AddFrameworkDefines("NET{0}_{1}", 6, 0);
+                AddFrameworkDefines("NET{0}_{1}", 5, 0);
+                options.ScriptingAPI.Defines.Add("NET");
+                AddFrameworkDefines("NETCOREAPP{0}_{1}", 3, 1); // "NETCOREAPP3_1" and "NETCOREAPP3_1_OR_GREATER"
+                AddFrameworkDefines("NETCOREAPP{0}_{1}", 2, 2);
+                AddFrameworkDefines("NETCOREAPP{0}_{1}", 1, 1);
+                options.ScriptingAPI.Defines.Add("NETCOREAPP");
+
                 if (options.Target is EngineTarget engineTarget && engineTarget.UseSeparateMainExecutable(options))
                 {
                     // Build target doesn't support linking again main executable (eg. Linux) thus additional shared library is used for the engine (eg. libFlaxEditor.so)

Source/Engine/Scripting/Scripting.cpp

@@ -476,12 +476,28 @@ bool Scripting::Load()
 
     // Load FlaxEngine
     const String flaxEnginePath = Globals::BinariesFolder / TEXT("FlaxEngine.CSharp.dll");
-    if (((NativeBinaryModule*)GetBinaryModuleFlaxEngine())->Assembly->Load(flaxEnginePath))
+    auto* flaxEngineModule = (NativeBinaryModule*)GetBinaryModuleFlaxEngine();
+    if (flaxEngineModule->Assembly->Load(flaxEnginePath))
     {
         LOG(Error, "Failed to load FlaxEngine C# assembly.");
         return true;
     }
 
+    // Insert type aliases for vector types that don't exist in C++ but are just typedef (properly redirect them to actual types)
+    // TODO: add support for automatic typedef aliases setup for scripting module to properly lookup type from the alias typename
+#if USE_LARGE_WORLDS
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector2"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Double2"];
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector3"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Double3"];
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector4"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Double4"];
+#else
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector2"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Float2"];
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector3"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Float3"];
+    flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector4"] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Float4"];
+#endif
+    flaxEngineModule->ClassToTypeIndex[flaxEngineModule->Assembly->GetClass("FlaxEngine.Vector2")] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector2"];
+    flaxEngineModule->ClassToTypeIndex[flaxEngineModule->Assembly->GetClass("FlaxEngine.Vector3")] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector3"];
+    flaxEngineModule->ClassToTypeIndex[flaxEngineModule->Assembly->GetClass("FlaxEngine.Vector4")] = flaxEngineModule->TypeNameToTypeIndex["FlaxEngine.Vector4"];
+
 #if USE_EDITOR
     // Skip loading game modules in Editor on startup - Editor loads them later during splash screen (eg. after first compilation)
     static bool SkipFirstLoad = true;

Source/Engine/Scripting/Scripting.cs

@@ -229,22 +229,24 @@ namespace FlaxEngine
             return ManagedHandle.Alloc(new CultureInfo(lcid));
         }
 
-        internal static void VersionToNative(ManagedHandle versionHandle, IntPtr nativePtr)
+        [StructLayout(LayoutKind.Sequential)]
+        internal struct VersionNative
+        {
+            public int Major;
+            public int Minor;
+            public int Build;
+            public int Revision;
+        }
+
+        internal static void VersionToNative(ManagedHandle versionHandle, ref int major, ref int minor, ref int build, ref int revision)
         {
             Version version = Unsafe.As<Version>(versionHandle.Target);
             if (version != null)
             {
-                Marshal.WriteInt32(nativePtr, 0, version.Major);
-                Marshal.WriteInt32(nativePtr, 4, version.Minor);
-                Marshal.WriteInt32(nativePtr, 8, version.Build);
-                Marshal.WriteInt32(nativePtr, 12, version.Revision);
-            }
-            else
-            {
-                Marshal.WriteInt32(nativePtr, 0, 0);
-                Marshal.WriteInt32(nativePtr, 4, 0);
-                Marshal.WriteInt32(nativePtr, 8, -1);
-                Marshal.WriteInt32(nativePtr, 12, -1);
+                major = version.Major;
+                minor = version.Minor;
+                build = version.Build;
+                revision = version.Revision;
             }
         }
 

Source/Engine/ShadowsOfMordor/Builder.Jobs.cpp

@@ -151,6 +151,13 @@ void ShadowsOfMordor::Builder::onJobRender(GPUContext* context)
                 auto patch = terrain->GetPatch(entry.AsTerrain.PatchIndex);
                 auto chunk = &patch->Chunks[entry.AsTerrain.ChunkIndex];
                 auto chunkSize = terrain->GetChunkSize();
+                if (!patch->Heightmap)
+                {
+                    LOG(Error, "Terrain actor {0} is missing heightmap for baking, skipping baking stage.", terrain->GetName());
+                    _wasStageDone = true;
+                    scene->EntriesLocker.Unlock();
+                    return;
+                }
                 const auto heightmap = patch->Heightmap.Get()->GetTexture();
 
                 Matrix world;
@@ -171,7 +178,7 @@ void ShadowsOfMordor::Builder::onJobRender(GPUContext* context)
 
                 DrawCall drawCall;
                 if (TerrainManager::GetChunkGeometry(drawCall, chunkSize, 0))
-                    return;
+                    break;
 
                 context->UpdateCB(cb, &shaderData);
                 context->BindCB(0, cb);

Source/Engine/Tests/TestMath.cs

@@ -0,0 +1,48 @@
+// Copyright (c) 2012-2023 Wojciech Figat. All rights reserved.
+
+#if FLAX_TESTS
+using System;
+using NUnit.Framework;
+
+namespace FlaxEngine.Tests
+{
+    /// <summary>
+    /// Tests for <see cref="Mathf"/> and <see cref="Mathd"/>.
+    /// </summary>
+    [TestFixture]
+    public class TestMath
+    {
+        /// <summary>
+        /// Test unwinding angles.
+        /// </summary>
+        [Test]
+        public void TestUnwind()
+        {
+            Assert.AreEqual(0.0f, Mathf.UnwindDegreesAccurate(0.0f));
+            Assert.AreEqual(45.0f, Mathf.UnwindDegreesAccurate(45.0f));
+            Assert.AreEqual(90.0f, Mathf.UnwindDegreesAccurate(90.0f));
+            Assert.AreEqual(180.0f, Mathf.UnwindDegreesAccurate(180.0f));
+            Assert.AreEqual(0.0f, Mathf.UnwindDegreesAccurate(360.0f));
+            Assert.AreEqual(0.0f, Mathf.UnwindDegrees(0.0f));
+            Assert.AreEqual(45.0f, Mathf.UnwindDegrees(45.0f));
+            Assert.AreEqual(90.0f, Mathf.UnwindDegrees(90.0f));
+            Assert.AreEqual(180.0f, Mathf.UnwindDegrees(180.0f));
+            Assert.AreEqual(0.0f, Mathf.UnwindDegrees(360.0f));
+            var fError = 0.001f;
+            var dError = 0.00001;
+            for (float f = -400.0f; f <= 400.0f; f += 0.1f)
+            {
+                var f1 = Mathf.UnwindDegreesAccurate(f);
+                var f2 = Mathf.UnwindDegrees(f);
+                if (Mathf.Abs(f1 - f2) >= fError)
+                    throw new Exception($"Failed on angle={f}, {f1} != {f2}");
+                var d = (double)f;
+                var d1 = Mathd.UnwindDegreesAccurate(d);
+                var d2 = Mathd.UnwindDegrees(d);
+                if (Mathd.Abs(d1 - d2) >= dError)
+                    throw new Exception($"Failed on angle={d}, {d1} != {d2}");
+            }
+        }
+    }
+}
+#endif

Source/Engine/Visject/VisjectGraph.cpp

@@ -675,6 +675,10 @@ void VisjectExecutor::ProcessGroupPacking(Box* box, Node* node, Value& value)
                 }
             }
         }
+
+        // For in-built structures try to convert it into internal format for better comparability with the scripting
+        value.Inline();
+
         break;
     }
     // Unpack Structure

Source/Engine/Visject/VisjectGraph.h

@@ -246,6 +246,7 @@ public:
     void ProcessGroupCollections(Box* box, Node* node, Value& value);
 
 protected:
+    void InlineVariantStruct(Variant& v);
     virtual Value eatBox(Node* caller, Box* box) = 0;
     virtual Graph* GetCurrentGraph() const = 0;
 

Source/ThirdParty/fmt/core.h

@@ -30,6 +30,7 @@ Customizations done to fmt lib:
 #define FMT_USE_USER_DEFINED_LITERALS 0
 #define FMT_USE_STRING 0
 #define FMT_USE_LONG_DOUBLE 0
+#define FMT_USE_FLOAT128 0
 #define FMT_USE_ITERATOR 0
 #define FMT_USE_LOCALE_GROUPING 0
 #define FMT_EXCEPTIONS 0

Source/Tools/Flax.Build/Bindings/BindingsGenerator.CSharp.cs

@@ -1203,6 +1203,8 @@ namespace Flax.Build.Bindings
                             contents.Append("ref ");
                         else if (parameterInfo.IsThis)
                             contents.Append("this ");
+                        else if (parameterInfo.IsParams)
+                            contents.Append("params ");
                         contents.Append(managedType);
                         contents.Append(' ');
                         contents.Append(parameterInfo.Name);
@@ -1263,6 +1265,8 @@ namespace Flax.Build.Bindings
                                 contents.Append("ref ");
                             else if (parameterInfo.IsThis)
                                 contents.Append("this ");
+                            else if (parameterInfo.IsParams)
+                                contents.Append("params ");
                             contents.Append(managedType);
                             contents.Append(' ');
                             contents.Append(parameterInfo.Name);
@@ -1988,6 +1992,8 @@ namespace Flax.Build.Bindings
                         contents.Append("ref ");
                     else if (parameterInfo.IsThis)
                         contents.Append("this ");
+                    else if (parameterInfo.IsParams)
+                        contents.Append("params ");
                     contents.Append(managedType);
                     contents.Append(' ');
                     contents.Append(parameterInfo.Name);
@@ -2053,7 +2059,7 @@ namespace Flax.Build.Bindings
                         if (code.StartsWith("using"))
                             CSharpUsedNamespaces.Add(code.Substring(6));
                         else if (code.Length > 0)
-                            contents.Append(injectCodeInfo.Code).AppendLine(";");
+                            contents.Append(code).AppendLine(";");
                     }
                 }
                 else

Source/Tools/Flax.Build/Bindings/BindingsGenerator.Cache.cs

@@ -19,7 +19,7 @@ namespace Flax.Build.Bindings
     partial class BindingsGenerator
     {
         private static readonly Dictionary<string, Type> TypeCache = new Dictionary<string, Type>();
-        private const int CacheVersion = 18;
+        private const int CacheVersion = 19;
 
         internal static void Write(BinaryWriter writer, string e)
         {

Source/Tools/Flax.Build/Bindings/BindingsGenerator.Parsing.cs

@@ -337,6 +337,9 @@ namespace Flax.Build.Bindings
                         case "this":
                             currentParam.IsThis = true;
                             break;
+                        case "params":
+                            currentParam.IsParams = true;
+                            break;
                         case "attributes":
                             currentParam.Attributes = tag.Value;
                             break;

Source/Tools/Flax.Build/Bindings/FunctionInfo.cs

@@ -19,6 +19,7 @@ namespace Flax.Build.Bindings
             public bool IsRef;
             public bool IsOut;
             public bool IsThis;
+            public bool IsParams;
 
             public bool HasDefaultValue => !string.IsNullOrEmpty(DefaultValue);
 
@@ -37,6 +38,7 @@ namespace Flax.Build.Bindings
                 writer.Write(IsRef);
                 writer.Write(IsOut);
                 writer.Write(IsThis);
+                writer.Write(IsParams);
             }
 
             public void Read(BinaryReader reader)
@@ -49,6 +51,7 @@ namespace Flax.Build.Bindings
                 IsRef = reader.ReadBoolean();
                 IsOut = reader.ReadBoolean();
                 IsThis = reader.ReadBoolean();
+                IsParams = reader.ReadBoolean();
             }
 
             public override string ToString()

Source/Tools/Flax.Build/Build/DotNet/Builder.DotNet.cs

@@ -159,6 +159,7 @@ namespace Flax.Build
             var outputPath = Path.GetDirectoryName(buildData.Target.GetOutputFilePath(buildOptions));
             var outputFile = Path.Combine(outputPath, name + ".dll");
             var outputDocFile = Path.Combine(outputPath, name + ".xml");
+            var outputGeneratedFiles = Path.Combine(buildOptions.IntermediateFolder);
             string cscPath, referenceAssemblies;
 #if USE_NETCORE
             var dotnetSdk = DotNetSdk.Instance;
@@ -263,6 +264,9 @@ namespace Flax.Build
 #endif
             args.Add(string.Format("/out:\"{0}\"", outputFile));
             args.Add(string.Format("/doc:\"{0}\"", outputDocFile));
+#if USE_NETCORE
+            args.Add(string.Format("/generatedfilesout:\"{0}\"", outputGeneratedFiles));
+#endif
             if (buildOptions.ScriptingAPI.Defines.Count != 0)
                 args.Add("/define:" + string.Join(";", buildOptions.ScriptingAPI.Defines));
             if (buildData.Configuration == TargetConfiguration.Debug)
@@ -272,8 +276,10 @@ namespace Flax.Build
             foreach (var reference in fileReferences)
                 args.Add(string.Format("/reference:\"{0}\"", reference));
 #if USE_NETCORE
-            foreach (var analyzer in buildOptions.ScriptingAPI.SystemAnalyzers)
-                args.Add(string.Format("/analyzer:\"{0}{1}.dll\"", referenceAnalyzers, analyzer));
+            foreach (var systemAnalyzer in buildOptions.ScriptingAPI.SystemAnalyzers)
+                args.Add(string.Format("/analyzer:\"{0}{1}.dll\"", referenceAnalyzers, systemAnalyzer));
+            foreach (var analyzer in buildOptions.ScriptingAPI.Analyzers)
+                args.Add(string.Format("/analyzer:\"{0}\"", analyzer));
 #endif
             foreach (var sourceFile in sourceFiles)
                 args.Add("\"" + sourceFile + "\"");

Source/Tools/Flax.Build/Build/NativeCpp/BuildOptions.cs

@@ -200,14 +200,19 @@ namespace Flax.Build.NativeCpp
             public HashSet<string> SystemReferences;
 
             /// <summary>
-            /// The .Net libraries references (dll or exe files paths).
+            /// The system analyzers/source generators.
+            /// </summary>
+            public HashSet<string> SystemAnalyzers;
+
+            /// <summary>
+            /// The .NET libraries references (dll or exe files paths).
             /// </summary>
             public HashSet<string> FileReferences;
 
             /// <summary>
-            /// The .Net libraries references (dll or exe files paths).
+            /// The .NET analyzers (dll or exe files paths).
             /// </summary>
-            public HashSet<string> SystemAnalyzers;
+            public HashSet<string> Analyzers;
 
             /// <summary>
             /// True if ignore compilation warnings due to missing code documentation comments.
@@ -232,6 +237,7 @@ namespace Flax.Build.NativeCpp
                 Defines.AddRange(other.Defines);
                 SystemReferences.AddRange(other.SystemReferences);
                 FileReferences.AddRange(other.FileReferences);
+                Analyzers.AddRange(other.Analyzers);
                 IgnoreMissingDocumentationWarnings |= other.IgnoreMissingDocumentationWarnings;
             }
         }
@@ -305,6 +311,7 @@ namespace Flax.Build.NativeCpp
                 "Microsoft.Interop.SourceGeneration",
             },
             FileReferences = new HashSet<string>(),
+            Analyzers = new HashSet<string>(),
         };
 
         /// <summary>

Source/Tools/Flax.Build/Projects/VisualStudio/CSSDKProjectGenerator.cs

@@ -247,6 +247,14 @@ namespace Flax.Build.Projects.VisualStudio
                     csProjectFileContent.AppendLine("  </ItemGroup>");
                 }
             }
+            foreach (var analyzer in configuration.TargetBuildOptions.ScriptingAPI.Analyzers)
+            {
+                csProjectFileContent.AppendLine(string.Format("  <ItemGroup Condition=\" '$(Configuration)|$(Platform)' == '{0}' \">", configuration.Name));
+                csProjectFileContent.AppendLine(string.Format("    <Analyzer Include=\"{0}\">", Path.GetFileNameWithoutExtension(analyzer)));
+                csProjectFileContent.AppendLine(string.Format("      <HintPath>{0}</HintPath>", Utilities.MakePathRelativeTo(analyzer, projectDirectory).Replace('/', '\\')));
+                csProjectFileContent.AppendLine("    </Analyzer>");
+                csProjectFileContent.AppendLine("  </ItemGroup>");
+            }
 
             csProjectFileContent.AppendLine("");
         }