some linux work from summer

Content/Editor/MaterialTemplates/Decal.shader

@@ -13,7 +13,7 @@
 META_CB_BEGIN(0, Data)
 float4x4 WorldMatrix;
 float4x4 InvWorld;
-float4x4 SvPositionToWorld;
+float4x4 SVPositionToWorld;
 @1META_CB_END
 
 // Use depth buffer for per-pixel decal layering
@@ -27,63 +27,12 @@ struct MaterialInput
 	float3 WorldPosition;
 	float TwoSidedSign;
 	float2 TexCoord;
-	float4 TexCoord_DDX_DDY;
 	float3x3 TBN;
 	float4 SvPosition;
 	float3 PreSkinnedPosition;
 	float3 PreSkinnedNormal;
 };
 
-// Calculates decal texcoords for a given pixel position (sampels depth buffer and projects value to decal space).
-float2 SvPositionToDecalUV(float4 svPosition)
-{
-	float2 screenUV = svPosition.xy * ScreenSize.zw;
-	svPosition.z = SAMPLE_RT(DepthBuffer, screenUV).r;
-	float4 positionHS = mul(float4(svPosition.xyz, 1), SvPositionToWorld);
-	float3 positionWS = positionHS.xyz / positionHS.w;
-	float3 positionOS = mul(float4(positionWS, 1), InvWorld).xyz;
-	return positionOS.xz + 0.5f;
-}
-
-// Manually compute ddx/ddy for decal texture cooordinates to avoid the 2x2 pixels artifacts on the edges of geometry under decal
-// [Reference: https://www.humus.name/index.php?page=3D&ID=84]
-float4 CalculateTextureDerivatives(float4 svPosition, float2 texCoord)
-{
-	float4 svDiffX = float4(1, 0, 0, 0);
-	float2 uvDiffX0 = texCoord - SvPositionToDecalUV(svPosition - svDiffX);
-	float2 uvDiffX1 = SvPositionToDecalUV(svPosition + svDiffX) - texCoord;
-	float2 dx = dot(uvDiffX0, uvDiffX0) < dot(uvDiffX1, uvDiffX1) ? uvDiffX0 : uvDiffX1;
-
-	float4 svDiffY = float4(0, 1, 0, 0);
-	float2 uvDiffY0 = texCoord - SvPositionToDecalUV(svPosition - svDiffY);
-	float2 uvDiffY1 = SvPositionToDecalUV(svPosition + svDiffY) - texCoord;
-	float2 dy = dot(uvDiffY0, uvDiffY0) < dot(uvDiffY1, uvDiffY1) ? uvDiffY0 : uvDiffY1;
-
-	return float4(dx, dy);
-}
-
-// Computes the mipmap level for a specific texture dimensions to be sampled at decal texture cooordinates.
-// [Reference: https://hugi.scene.org/online/coding/hugi%2014%20-%20comipmap.htm]
-float CalculateTextureMipmap(MaterialInput input, float2 textureSize)
-{
-	float2 dx = input.TexCoord_DDX_DDY.xy * textureSize;
-	float2 dy = input.TexCoord_DDX_DDY.zw * textureSize;
-	float d = max(dot(dx, dx), dot(dy, dy));
-	return (0.5 * 0.5) * log2(d); // Hardcoded half-mip rate reduction to avoid artifacts when decal is moved over dither texture
-}
-float CalculateTextureMipmap(MaterialInput input, Texture2D t)
-{
-	float2 textureSize;
-	t.GetDimensions(textureSize.x, textureSize.y);
-	return CalculateTextureMipmap(input, textureSize);
-}
-float CalculateTextureMipmap(MaterialInput input, TextureCube t)
-{
-	float2 textureSize;
-	t.GetDimensions(textureSize.x, textureSize.y);
-	return CalculateTextureMipmap(input, textureSize);
-}
-
 // Transforms a vector from tangent space to world space
 float3 TransformTangentVectorToWorld(MaterialInput input, float3 tangentVector)
 {
@@ -167,6 +116,7 @@ Material GetMaterialPS(MaterialInput input)
 }
 
 // Input macro specified by the material: DECAL_BLEND_MODE
+
 #define DECAL_BLEND_MODE_TRANSLUCENT 0
 #define DECAL_BLEND_MODE_STAIN       1
 #define DECAL_BLEND_MODE_NORMAL      2
@@ -203,7 +153,7 @@ void PS_Decal(
 	float2 screenUV = SvPosition.xy * ScreenSize.zw;
 	SvPosition.z = SAMPLE_RT(DepthBuffer, screenUV).r;
 
-	float4 positionHS = mul(float4(SvPosition.xyz, 1), SvPositionToWorld);
+	float4 positionHS = mul(float4(SvPosition.xyz, 1), SVPositionToWorld);
 	float3 positionWS = positionHS.xyz / positionHS.w;
 	float3 positionOS = mul(float4(positionWS, 1), InvWorld).xyz;
 
@@ -216,9 +166,8 @@ void PS_Decal(
 	materialInput.TexCoord = decalUVs;
 	materialInput.TwoSidedSign = 1;
 	materialInput.SvPosition = SvPosition;
-	materialInput.TexCoord_DDX_DDY = CalculateTextureDerivatives(materialInput.SvPosition, materialInput.TexCoord);
-
-	// Calculate tangent-space
+	
+	// Build tangent to world transformation matrix
 	float3 ddxWp = ddx(positionWS);
 	float3 ddyWp = ddy(positionWS);
 	materialInput.TBN[0] = normalize(ddyWp);

Content/Editor/MaterialTemplates/GUI.shader

@@ -20,8 +20,6 @@ float TimeParam;
 float4 ViewInfo;
 float4 ScreenSize;
 float4 ViewSize;
-float3 ViewPadding0;
-float UnscaledTimeParam;
 @1META_CB_END
 
 // Shader resources

Content/Editor/MaterialTemplates/PostProcess.shader

@@ -19,8 +19,6 @@ float4 ViewInfo;
 float4 ScreenSize;
 float4 TemporalAAJitter;
 float4x4 InverseViewProjectionMatrix;
-float3 ViewPadding0;
-float UnscaledTimeParam;
 @1META_CB_END
 
 // Shader resources

Flax.sln.DotSettings

@@ -73,24 +73,6 @@
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 	<s:String x:Key="/Default/CodeStyle/Naming/CppNaming/UserRules/=UNION_005FMEMBER/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="aa_bb" /&gt;</s:String>
-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Abbreviations/=CCD/@EntryIndexedValue">CCD</s:String>
-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Abbreviations/=GPU/@EntryIndexedValue">GPU</s:String>
-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Abbreviations/=ID/@EntryIndexedValue">ID</s:String>
-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=175CE9C669E52F4D92FD2C07848740BD/@EntryIndexedValue">&lt;NamingElement Priority="11" Title="Class and struct public fields"&gt;&lt;Descriptor Static="Indeterminate" Constexpr="Indeterminate" Const="Indeterminate" Volatile="Indeterminate" Accessibility="PUBLIC"&gt;&lt;type Name="class field" /&gt;&lt;type Name="struct field" /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" WarnAboutPrefixesAndSuffixes="False" Prefix="" Suffix="" Style="AaBb" /&gt;&lt;/NamingElement&gt;</s:String>
-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=32EB6D69783B3E4481A733193E338089/@EntryIndexedValue">&lt;NamingElement Priority="9" Title="Class and struct methods"&gt;&lt;Descriptor Static="Indeterminate" Constexpr="Indeterminate" Const="Indeterminate" Volatile="Indeterminate" Accessibility="NOT_APPLICABLE"&gt;&lt;type Name="member function" /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" WarnAboutPrefixesAndSuffixes="False" Prefix="" Suffix="" Style="AaBb" /&gt;&lt;/NamingElement&gt;</s:String>
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-	<s:String x:Key="/Default/CodeStyle/Naming/CppNamingOptions/Rules/=F37818C54C323A4A80B1A478629985AE/@EntryIndexedValue">&lt;NamingElement Priority="2" Title="Enums"&gt;&lt;Descriptor Static="Indeterminate" Constexpr="Indeterminate" Const="Indeterminate" Volatile="Indeterminate" Accessibility="NOT_APPLICABLE"&gt;&lt;type Name="enum" /&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" WarnAboutPrefixesAndSuffixes="False" Prefix="" Suffix="" Style="AaBb" /&gt;&lt;/NamingElement&gt;</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=AI/@EntryIndexedValue">AI</s:String>
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 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=LO/@EntryIndexedValue">LO</s:String>
@@ -231,7 +213,6 @@
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 	<s:String x:Key="/Default/Environment/Hierarchy/PsiConfigurationSettingsKey/CustomLocation/@EntryValue">C:\Users\Wojtek\AppData\Local\JetBrains\Transient\ReSharperPlatformVs15\v08_f9eacea9\SolutionCaches</s:String>
-	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EFeature_002EServices_002ECpp_002ECodeStyle_002ENaming_002ECppNamingOptionsMigration/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EFeature_002EServices_002ECpp_002ECodeStyle_002ESettingsUpgrade_002EFunctionReturnStyleSettingsUpgrader/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EFeature_002EServices_002ECpp_002ECodeStyle_002ESettingsUpgrade_002ENamespaceIndentationSettingsUpgrader/@EntryIndexedValue">True</s:Boolean>
 	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpAttributeForSingleLineMethodUpgrade/@EntryIndexedValue">True</s:Boolean>

GenerateProjectFiles.sh

@@ -14,4 +14,4 @@ bash ./Development/Scripts/Linux/CallBuildTool.sh --genproject "$@"
 # Build bindings for all editor configurations
 echo Building C# bindings...
 # TODO: Detect the correct architecture here
-Binaries/Tools/Flax.Build -build -BuildBindingsOnly -arch=x64 -platform=Linux --buildTargets=FlaxEditor
+#Binaries/Tools/Flax.Build -build -BuildBindingsOnly -arch=x64 -platform=Linux --buildTargets=FlaxEditor

README.md

@@ -57,9 +57,9 @@ Follow the instructions below to compile and run the engine from source.
   * Arch: `sudo pacman -S git git-lfs`
   * `git-lfs install`
 * Install the required packages:
-  * Ubuntu: `sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev zlib1g-dev`
-  * Fedora: `sudo dnf install libX11-devel libXcursor-devel  libXinerama-devel ghc-zlib-devel`
-  * Arch: `sudo pacman -S base-devel libx11 libxcursor libxinerama zlib`
+  * Ubuntu: `sudo apt-get install libx11-dev libxcursor-dev libxinerama-dev zlib1g-dev zenity wayland-protocols libportal-dev`
+  * Fedora: `sudo dnf install libX11-devel libXcursor-devel  libXinerama-devel ghc-zlib-devel zenity wayland-protocols-devel libportal`
+  * Arch: `sudo pacman -S base-devel libx11 libxcursor libxinerama zlib zenity wayland-protocols libportal`
 * Install Clang compiler (version 6 or later):
   * Ubuntu: `sudo apt-get install clang lldb lld`
   * Fedora: `sudo dnf install clang llvm lldb lld`

Source/Editor/Cooker/CookingData.h

@@ -20,6 +20,13 @@ class PlatformTools;
 #define GAME_BUILD_DOTNET_RUNTIME_MAX_VER 9
 #endif
 
+#if OFFICIAL_BUILD
+// Use the fixed .NET SDK version in packaged builds for compatibility (FlaxGame is precompiled with it)
+#define GAME_BUILD_DOTNET_VER TEXT("-dotnet=" MACRO_TO_STR(GAME_BUILD_DOTNET_RUNTIME_MIN_VER))
+#else
+#define GAME_BUILD_DOTNET_VER TEXT("")
+#endif
+
 /// <summary>
 /// Game building options. Used as flags.
 /// </summary>
@@ -367,8 +374,6 @@ public:
     /// </summary>
     void GetBuildPlatformName(const Char*& platform, const Char*& architecture) const;
 
-    String GetDotnetCommandArg() const;
-
 public:
 
     /// <summary>

Source/Editor/Cooker/GameCooker.cpp

@@ -312,14 +312,6 @@ void CookingData::GetBuildPlatformName(const Char*& platform, const Char*& archi
     }
 }
 
-String CookingData::GetDotnetCommandArg() const
-{
-    int32 version = Tools->GetDotnetVersion();
-    if (version == 0)
-        return String::Empty;
-    return String::Format(TEXT("-dotnet={}"), version);
-}
-
 void CookingData::StepProgress(const String& info, const float stepProgress) const
 {
     const float singleStepProgress = 1.0f / (StepsCount + 1);
@@ -683,7 +675,8 @@ bool GameCookerImpl::Build()
 
     MCore::Thread::Attach();
 
-    // Build start
+    // Build Started
+    if (!EnumHasAnyFlags(data.Options, BuildOptions::NoCook))
     {
         CallEvent(GameCooker::EventType::BuildStarted);
         data.Tools->OnBuildStarted(data);
@@ -756,8 +749,8 @@ bool GameCookerImpl::Build()
     }
     IsRunning = false;
     CancelFlag = 0;
+    if (!EnumHasAnyFlags(data.Options, BuildOptions::NoCook))
     {
-        // Build end
         for (int32 stepIndex = 0; stepIndex < Steps.Count(); stepIndex++)
             Steps[stepIndex]->OnBuildEnded(data, failed);
         data.Tools->OnBuildEnded(data, failed);

Source/Editor/Cooker/Platform/GDK/GDKPlatformTools.cpp

@@ -195,9 +195,4 @@ bool GDKPlatformTools::OnPostProcess(CookingData& data, GDKPlatformSettings* pla
     return false;
 }
 
-int32 GDKPlatformTools::GetDotnetVersion() const
-{
-    return GAME_BUILD_DOTNET_RUNTIME_MIN_VER;
-}
-
 #endif

Source/Editor/Cooker/Platform/GDK/GDKPlatformTools.h

@@ -26,7 +26,6 @@ public:
 public:
 
     // [PlatformTools]
-    int32 GetDotnetVersion() const override;
     DotNetAOTModes UseAOT() const override;
     bool OnDeployBinaries(CookingData& data) override;
 };

Source/Editor/Cooker/Platform/Mac/MacPlatformTools.cpp

@@ -231,8 +231,6 @@ bool MacPlatformTools::OnPostProcess(CookingData& data)
     LOG(Info, "Building app package...");
     {
         const String dmgPath = data.OriginalOutputPath / appName + TEXT(".dmg");
-        if (FileSystem::FileExists(dmgPath))
-            FileSystem::DeleteFile(dmgPath);
         CreateProcessSettings procSettings;
         procSettings.HiddenWindow = true;
         procSettings.WorkingDirectory = data.OriginalOutputPath;

Source/Editor/Cooker/Platform/Windows/WindowsPlatformTools.cpp

@@ -528,9 +528,6 @@ bool WindowsPlatformTools::OnDeployBinaries(CookingData& data)
 
 void WindowsPlatformTools::OnBuildStarted(CookingData& data)
 {
-    if (EnumHasAllFlags(data.Options, BuildOptions::NoCook))
-        return;
-
     // Remove old executable
     Array<String> files;
     FileSystem::DirectoryGetFiles(files, data.NativeCodeOutputPath, TEXT("*.exe"), DirectorySearchOption::TopDirectoryOnly);

Source/Editor/Cooker/PlatformTools.h

@@ -70,20 +70,6 @@ public:
     /// </summary>
     virtual ArchitectureType GetArchitecture() const = 0;
 
-    /// <summary>
-    /// Gets the .Net version to use for the cooked game.
-    /// </summary>
-    virtual int32 GetDotnetVersion() const
-    {
-#if OFFICIAL_BUILD
-        // Use the fixed .NET SDK version in packaged builds for compatibility (FlaxGame is precompiled with it)
-        return GAME_BUILD_DOTNET_RUNTIME_MIN_VER;
-#else
-        // Use the highest version found on a system (Flax.Build will decide)
-        return 0;
-#endif
-    }
-
     /// <summary>
     /// Gets the value indicating whenever platform requires AOT (needs C# assemblies to be precompiled).
     /// </summary>

Source/Editor/Cooker/Steps/CompileScriptsStep.cpp

@@ -189,7 +189,7 @@ bool CompileScriptsStep::Perform(CookingData& data)
     const String logFile = data.CacheDirectory / TEXT("CompileLog.txt");
     auto args = String::Format(
         TEXT("-log -logfile=\"{4}\" -build -mutex -buildtargets={0} -platform={1} -arch={2} -configuration={3} -aotMode={5} {6}"),
-        target, platform, architecture, configuration, logFile, ToString(data.Tools->UseAOT()), data.GetDotnetCommandArg());
+        target, platform, architecture, configuration, logFile, ToString(data.Tools->UseAOT()), GAME_BUILD_DOTNET_VER);
 #if PLATFORM_WINDOWS
     if (data.Platform == BuildPlatform::LinuxX64)
 #elif PLATFORM_LINUX

Source/Editor/Cooker/Steps/DeployDataStep.cpp

@@ -88,7 +88,7 @@ bool DeployDataStep::Perform(CookingData& data)
             {
                 // Ask Flax.Build to provide .NET SDK location for the current platform
                 String sdks;
-                bool failed = ScriptsBuilder::RunBuildTool(String::Format(TEXT("-log -logMessagesOnly -logFileWithConsole -logfile=SDKs.txt -printSDKs {}"), data.GetDotnetCommandArg()), data.CacheDirectory);
+                bool failed = ScriptsBuilder::RunBuildTool(String::Format(TEXT("-log -logMessagesOnly -logFileWithConsole -logfile=SDKs.txt -printSDKs {}"), GAME_BUILD_DOTNET_VER), data.CacheDirectory);
                 failed |= File::ReadAllText(data.CacheDirectory / TEXT("SDKs.txt"), sdks);
                 int32 idx = sdks.Find(TEXT("DotNetSdk, "), StringSearchCase::CaseSensitive);
                 if (idx != -1)
@@ -200,7 +200,7 @@ bool DeployDataStep::Perform(CookingData& data)
                 String sdks;
                 const Char *platformName, *archName;
                 data.GetBuildPlatformName(platformName, archName);
-                String args = String::Format(TEXT("-log -logMessagesOnly -logFileWithConsole -logfile=SDKs.txt -printDotNetRuntime -platform={} -arch={} {}"), platformName, archName, data.GetDotnetCommandArg());
+                String args = String::Format(TEXT("-log -logMessagesOnly -logFileWithConsole -logfile=SDKs.txt -printDotNetRuntime -platform={} -arch={} {}"), platformName, archName, GAME_BUILD_DOTNET_VER);
                 bool failed = ScriptsBuilder::RunBuildTool(args, data.CacheDirectory);
                 failed |= File::ReadAllText(data.CacheDirectory / TEXT("SDKs.txt"), sdks);
                 Array<String> parts;
@@ -244,13 +244,10 @@ bool DeployDataStep::Perform(CookingData& data)
                     }
                     if (version.IsEmpty())
                     {
-                        int32 minVer = GAME_BUILD_DOTNET_RUNTIME_MIN_VER, maxVer = GAME_BUILD_DOTNET_RUNTIME_MAX_VER;
                         if (srcDotnetFromEngine)
                         {
                             // Detect version from runtime files inside Engine Platform folder
-                            if (data.Tools->GetDotnetVersion() != 0)
-                                minVer = maxVer = data.Tools->GetDotnetVersion();
-                            for (int32 i = maxVer; i >= minVer; i--)
+                            for (int32 i = GAME_BUILD_DOTNET_RUNTIME_MAX_VER; i >= GAME_BUILD_DOTNET_RUNTIME_MIN_VER; i--)
                             {
                                 // Check runtime files inside Engine Platform folder
                                 String testPath1 = srcDotnet / String::Format(TEXT("lib/net{}.0"), i);
@@ -265,7 +262,7 @@ bool DeployDataStep::Perform(CookingData& data)
                         }
                         if (version.IsEmpty())
                         {
-                            data.Error(String::Format(TEXT("Failed to find supported .NET {} version (min {}) for the current host platform."), maxVer, minVer));
+                            data.Error(String::Format(TEXT("Failed to find supported .NET {} version for the current host platform."), GAME_BUILD_DOTNET_RUNTIME_MIN_VER));
                             return true;
                         }
                     }
@@ -367,7 +364,7 @@ bool DeployDataStep::Perform(CookingData& data)
             const String logFile = data.CacheDirectory / TEXT("StripDotnetLibs.txt");
             String args = String::Format(
                 TEXT("-log -logfile=\"{}\" -runDotNetClassLibStripping -mutex -binaries=\"{}\" {}"),
-                logFile, data.DataOutputPath, data.GetDotnetCommandArg());
+                logFile, data.DataOutputPath, GAME_BUILD_DOTNET_VER);
             for (const String& define : data.CustomDefines)
             {
                 args += TEXT(" -D");

Source/Editor/Cooker/Steps/PrecompileAssembliesStep.cpp

@@ -12,7 +12,7 @@
 void PrecompileAssembliesStep::OnBuildStarted(CookingData& data)
 {
     const DotNetAOTModes aotMode = data.Tools->UseAOT();
-    if (aotMode == DotNetAOTModes::None || EnumHasAllFlags(data.Options, BuildOptions::NoCook))
+    if (aotMode == DotNetAOTModes::None)
         return;
     const auto& buildSettings = *BuildSettings::Get();
 
@@ -69,7 +69,7 @@ bool PrecompileAssembliesStep::Perform(CookingData& data)
     const String logFile = data.CacheDirectory / TEXT("AOTLog.txt");
     String args = String::Format(
         TEXT("-log -logfile=\"{}\" -runDotNetAOT -mutex -platform={} -arch={} -configuration={} -aotMode={} -binaries=\"{}\" -intermediate=\"{}\" {}"),
-        logFile, platform, architecture, configuration, ToString(aotMode), data.DataOutputPath, data.ManagedCodeOutputPath, data.GetDotnetCommandArg());
+        logFile, platform, architecture, configuration, ToString(aotMode), data.DataOutputPath, data.ManagedCodeOutputPath, GAME_BUILD_DOTNET_VER);
     if (!buildSettings.SkipUnusedDotnetLibsPackaging)
         args += TEXT(" -skipUnusedDotnetLibs=false"); // Run AOT on whole class library (not just used libs)
     for (const String& define : data.CustomDefines)

Source/Editor/CustomEditorWindow.cs

@@ -18,8 +18,8 @@ namespace FlaxEditor
             private readonly CustomEditorPresenter _presenter;
             private CustomEditorWindow _customEditor;
 
-            public Win(CustomEditorWindow customEditor, bool hideOnClose, ScrollBars scrollBars)
-            : base(Editor.Instance, hideOnClose, scrollBars)
+            public Win(CustomEditorWindow customEditor)
+            : base(Editor.Instance, false, ScrollBars.Vertical)
             {
                 Title = customEditor.GetType().Name;
                 _customEditor = customEditor;
@@ -64,9 +64,9 @@ namespace FlaxEditor
         /// <summary>
         /// Initializes a new instance of the <see cref="CustomEditorWindow"/> class.
         /// </summary>
-        protected CustomEditorWindow(bool hideOnClose = false, ScrollBars scrollBars = ScrollBars.Vertical)
+        protected CustomEditorWindow()
         {
-            _win = new Win(this, hideOnClose, scrollBars);
+            _win = new Win(this);
             ScriptsBuilder.ScriptsReloadBegin += OnScriptsReloadBegin;
         }
 

Source/Editor/CustomEditors/CustomEditor.cs

@@ -749,15 +749,6 @@ namespace FlaxEditor.CustomEditors
             }
         }
 
-        private Actor FindActor(CustomEditor editor)
-        {
-            if (editor.Values[0] is Actor actor)
-                return actor;
-            if (editor.ParentEditor != null)
-                return FindActor(editor.ParentEditor);
-            return null;
-        }
-
         private Actor FindPrefabRoot(CustomEditor editor)
         {
             if (editor.Values[0] is Actor actor)
@@ -776,35 +767,32 @@ namespace FlaxEditor.CustomEditors
             return FindPrefabRoot(actor.Parent);
         }
 
-        private SceneObject FindObjectWithPrefabObjectId(Actor actor, ref Guid prefabObjectId, Actor endPoint)
+        private SceneObject FindObjectWithPrefabObjectId(Actor actor, ref Guid prefabObjectId)
         {
-            var visited = new HashSet<Actor>();
-            return FindObjectWithPrefabObjectId(actor, ref prefabObjectId, endPoint, visited);
-        }
-
-        private SceneObject FindObjectWithPrefabObjectId(Actor actor, ref Guid prefabObjectId, Actor endPoint, HashSet<Actor> visited)
-        {
-            if (visited.Contains(actor) || actor is Scene || actor == endPoint)
-                return null;
             if (actor.PrefabObjectID == prefabObjectId)
                 return actor;
 
             for (int i = 0; i < actor.ScriptsCount; i++)
             {
-                var script = actor.GetScript(i);
-                if (script != null && script.PrefabObjectID == prefabObjectId)
-                    return script;
+                if (actor.GetScript(i).PrefabObjectID == prefabObjectId)
+                {
+                    var a = actor.GetScript(i);
+                    if (a != null)
+                        return a;
+                }
             }
 
             for (int i = 0; i < actor.ChildrenCount; i++)
             {
-                var child = actor.GetChild(i);
-                if (child != null && child.PrefabObjectID == prefabObjectId)
-                    return child;
+                if (actor.GetChild(i).PrefabObjectID == prefabObjectId)
+                {
+                    var a = actor.GetChild(i);
+                    if (a != null)
+                        return a;
+                }
             }
 
-            // Go up in the hierarchy
-            return FindObjectWithPrefabObjectId(actor.Parent, ref prefabObjectId, endPoint, visited);
+            return null;
         }
 
         /// <summary>
@@ -838,7 +826,7 @@ namespace FlaxEditor.CustomEditors
                 }
 
                 var prefabObjectId = referenceSceneObject.PrefabObjectID;
-                var prefabInstanceRef = FindObjectWithPrefabObjectId(FindActor(this), ref prefabObjectId, prefabInstanceRoot);
+                var prefabInstanceRef = FindObjectWithPrefabObjectId(prefabInstanceRoot, ref prefabObjectId);
                 if (prefabInstanceRef == null)
                 {
                     Editor.LogWarning("Missing prefab instance reference in the prefab instance. Cannot revert to it.");

Source/Editor/CustomEditors/CustomEditorPresenter.cs

@@ -63,11 +63,6 @@ namespace FlaxEditor.CustomEditors
         /// Indication of if the properties window is locked on specific objects.
         /// </summary>
         public bool LockSelection { get; set; }
-
-        /// <summary>
-        /// Gets the scene editing context.
-        /// </summary>
-        public ISceneEditingContext SceneContext { get; }
     }
 
     /// <summary>

Source/Editor/CustomEditors/Dedicated/ActorEditor.cs

@@ -1,5 +1,8 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
+using System;
+using System.Collections.Generic;
+using System.Linq;
 using FlaxEditor.Actions;
 using FlaxEditor.CustomEditors.Editors;
 using FlaxEditor.CustomEditors.Elements;
@@ -7,14 +10,12 @@ using FlaxEditor.GUI;
 using FlaxEditor.GUI.ContextMenu;
 using FlaxEditor.GUI.Tree;
 using FlaxEditor.Scripting;
+using FlaxEditor.Windows;
 using FlaxEditor.Windows.Assets;
 using FlaxEngine;
 using FlaxEngine.GUI;
 using FlaxEngine.Json;
 using FlaxEngine.Utilities;
-using System;
-using System.Collections.Generic;
-using System.Linq;
 
 namespace FlaxEditor.CustomEditors.Dedicated
 {
@@ -239,12 +240,6 @@ namespace FlaxEditor.CustomEditors.Dedicated
                 node.TextColor = Color.OrangeRed;
                 node.Text = Utilities.Utils.GetPropertyNameUI(removed.PrefabObject.GetType().Name);
             }
-            // Removed Actor
-            else if (editor is RemovedActorDummy removedActor)
-            {
-                node.TextColor = Color.OrangeRed;
-                node.Text = $"{removedActor.PrefabObject.Name} ({Utilities.Utils.GetPropertyNameUI(removedActor.PrefabObject.GetType().Name)})";
-            }
             // Actor or Script
             else if (editor.Values[0] is SceneObject sceneObject)
             {
@@ -300,40 +295,16 @@ namespace FlaxEditor.CustomEditors.Dedicated
                 // Not used
             }
         }
-        
-        private class RemovedActorDummy : CustomEditor
-        {
-            /// <summary>
-            /// The removed prefab object (from the prefab default instance).
-            /// </summary>
-            public Actor PrefabObject;
-
-            /// <summary>
-            /// The prefab instance's parent.
-            /// </summary>
-            public Actor ParentActor;
-
-            /// <summary>
-            /// The order of the removed actor in the parent.
-            /// </summary>
-            public int OrderInParent;
-
-            /// <inheritdoc />
-            public override void Initialize(LayoutElementsContainer layout)
-            {
-                // Not used
-            }
-        }
 
         private TreeNode ProcessDiff(CustomEditor editor, bool skipIfNotModified = true)
         {
-            // Special case for new Script or child actor added to actor
-            if ((editor.Values[0] is Script script && !script.HasPrefabLink) || (editor.Values[0] is Actor a && !a.HasPrefabLink))
+            // Special case for new Script added to actor
+            if (editor.Values[0] is Script script && !script.HasPrefabLink)
                 return CreateDiffNode(editor);
 
             // Skip if no change detected
             var isRefEdited = editor.Values.IsReferenceValueModified;
-            if (!isRefEdited && skipIfNotModified && editor is not ScriptsEditor)
+            if (!isRefEdited && skipIfNotModified)
                 return null;
 
             TreeNode result = null;
@@ -388,44 +359,6 @@ namespace FlaxEditor.CustomEditors.Dedicated
                 }
             }
 
-            // Compare child actors for removed actors.
-            if (editor is ActorEditor && editor.Values.HasReferenceValue && editor.Values.ReferenceValue is Actor prefabObjectActor)
-            {
-                var thisActor = editor.Values[0] as Actor;
-                for (int i = 0; i < prefabObjectActor.ChildrenCount; i++)
-                {
-                    var prefabActorChild = prefabObjectActor.Children[i];
-                    if (thisActor == null)
-                        continue;
-                    bool isRemoved = true;
-                    for (int j = 0; j < thisActor.ChildrenCount; j++)
-                    {
-                        var actorChild = thisActor.Children[j];
-                        if (actorChild.PrefabObjectID == prefabActorChild.PrefabObjectID)
-                        {
-                            isRemoved = false;
-                            break;
-                        }
-                    }
-                    if (isRemoved)
-                    {
-                        var dummy = new RemovedActorDummy
-                        {
-                            PrefabObject = prefabActorChild,
-                            ParentActor = thisActor,
-                            OrderInParent = prefabActorChild.OrderInParent,
-                        };
-                        var child = CreateDiffNode(dummy);
-                        if (result == null)
-                            result = CreateDiffNode(editor);
-                        result.AddChild(child);
-                    }
-                }
-            }
-
-            if (editor is ScriptsEditor && result != null && result.ChildrenCount == 0)
-                return null;
-
             return result;
         }
 
@@ -505,15 +438,6 @@ namespace FlaxEditor.CustomEditors.Dedicated
             Presenter.BuildLayoutOnUpdate();
         }
 
-        private static void GetAllPrefabObjects(List<object> objects, Actor actor)
-        {
-            objects.Add(actor);
-            objects.AddRange(actor.Scripts);
-            var children = actor.Children;
-            foreach (var child in children)
-                GetAllPrefabObjects(objects, child);
-        }
-
         private void OnDiffRevert(CustomEditor editor)
         {
             // Special case for removed Script from actor
@@ -535,22 +459,6 @@ namespace FlaxEditor.CustomEditors.Dedicated
                 return;
             }
 
-            // Special case for reverting removed Actors
-            if (editor is RemovedActorDummy removedActor)
-            {
-                Editor.Log("Reverting removed actor changes to prefab (adding it)");
-
-                var parentActor = removedActor.ParentActor;
-                var restored = parentActor.AddChild(removedActor.PrefabObject.GetType());
-                var prefabId = parentActor.PrefabID;
-                var prefabObjectId = removedActor.PrefabObject.PrefabObjectID;
-                string data = JsonSerializer.Serialize(removedActor.PrefabObject);
-                JsonSerializer.Deserialize(restored, data);
-                Presenter.Owner.SceneContext.Spawn(restored, parentActor, removedActor.OrderInParent);
-                Actor.Internal_LinkPrefab(FlaxEngine.Object.GetUnmanagedPtr(restored), ref prefabId, ref prefabObjectId);
-                return;
-            }
-
             // Special case for new Script added to actor
             if (editor.Values[0] is Script script && !script.HasPrefabLink)
             {
@@ -562,37 +470,8 @@ namespace FlaxEditor.CustomEditors.Dedicated
 
                 return;
             }
-            
-            // Special case for new Actor added to actor
-            if (editor.Values[0] is Actor a && !a.HasPrefabLink)
-            {
-                Editor.Log("Reverting added actor changes to prefab (removing it)");
 
-                // TODO: Keep previous selection.
-                var context = Presenter.Owner.SceneContext;
-                context.Select(SceneGraph.SceneGraphFactory.FindNode(a.ID));
-                context.DeleteSelection();
-
-                return;
-            }
-
-            if (Presenter.Undo != null && Presenter.Undo.Enabled)
-            {
-                var thisActor = (Actor)Values[0];
-                var rootActor = thisActor.IsPrefabRoot ? thisActor : thisActor.GetPrefabRoot();
-                var prefabObjects = new List<object>();
-                GetAllPrefabObjects(prefabObjects, rootActor);
-                using (new UndoMultiBlock(Presenter.Undo, prefabObjects, "Revert to Prefab"))
-                {
-                    editor.RevertToReferenceValue();
-                    editor.RefreshInternal();
-                }
-            }
-            else
-            {
-                editor.RevertToReferenceValue();
-                editor.RefreshInternal();
-            }
+            editor.RevertToReferenceValue();
         }
     }
 }

Source/Editor/CustomEditors/Editors/ActorTransformEditor.cs

@@ -106,6 +106,7 @@ namespace FlaxEditor.CustomEditors.Editors
 
                 _linkButton = new Button
                 {
+                    BackgroundBrush = new SpriteBrush(Editor.Instance.Icons.Link32),
                     Parent = LinkedLabel,
                     Width = 18,
                     Height = 18,
@@ -188,7 +189,6 @@ namespace FlaxEditor.CustomEditors.Editors
                 _linkButton.SetColors(backgroundColor);
                 _linkButton.BorderColor = _linkButton.BorderColorSelected = _linkButton.BorderColorHighlighted = Color.Transparent;
                 _linkButton.TooltipText = LinkValues ? "Unlinks scale components from uniform scaling" : "Links scale components for uniform scaling";
-                _linkButton.BackgroundBrush = new SpriteBrush(LinkValues ? Editor.Instance.Icons.Link32 : Editor.Instance.Icons.BrokenLink32);
             }
         }
 

Source/Editor/CustomEditors/Editors/CollectionEditor.cs

@@ -70,9 +70,7 @@ namespace FlaxEditor.CustomEditors.Editors
                 menu.ItemsContainer.RemoveChildren();
 
                 menu.AddButton("Copy", linkedEditor.Copy);
-                var b = menu.AddButton("Duplicate", () => Editor.Duplicate(Index));
-                b.Enabled = linkedEditor.CanPaste && !Editor._readOnly;
-                b = menu.AddButton("Paste", linkedEditor.Paste);
+                var b = menu.AddButton("Paste", linkedEditor.Paste);
                 b.Enabled = linkedEditor.CanPaste && !Editor._readOnly;
 
                 menu.AddSeparator();
@@ -406,10 +404,8 @@ namespace FlaxEditor.CustomEditors.Editors
                 var menu = new ContextMenu();
 
                 menu.AddButton("Copy", linkedEditor.Copy);
-                var b = menu.AddButton("Duplicate", () => Editor.Duplicate(Index));
-                b.Enabled = linkedEditor.CanPaste && !Editor._readOnly;
                 var paste = menu.AddButton("Paste", linkedEditor.Paste);
-                paste.Enabled = linkedEditor.CanPaste && !Editor._readOnly;
+                paste.Enabled = linkedEditor.CanPaste;
 
                 if (_canReorder)
                 {
@@ -745,34 +741,6 @@ namespace FlaxEditor.CustomEditors.Editors
             cloned[srcIndex] = tmp;
             SetValue(cloned);
         }
-        
-        /// <summary>
-        /// Duplicates the list item.
-        /// </summary>
-        /// <param name="index">The index to duplicate.</param>
-        public void Duplicate(int index)
-        {
-            if (IsSetBlocked)
-                return;
-
-            var count = Count;
-            var newValues = Allocate(count + 1);
-            var oldValues = (IList)Values[0];
-   
-            for (int i = 0; i <= index; i++)
-            {
-                newValues[i] = oldValues[i];
-            }
-
-            newValues[index + 1] = Utilities.Utils.CloneValue(oldValues[index]);
-
-            for (int i = index + 1; i < count; i++)
-            {
-                newValues[i + 1] = oldValues[i];
-            }
-
-            SetValue(newValues);
-        }
 
         /// <summary>
         /// Shifts the specified item at the given index and moves it through the list to the other item. It supports undo.

Source/Editor/CustomEditors/Editors/ControlReferenceEditor.cs

@@ -22,7 +22,7 @@ internal class UIControlRefPickerControl : FlaxObjectRefPickerControl
     /// <inheritdoc />
     protected override bool IsValid(Object obj)
     {
-        return obj == null || (obj is UIControl control && ControlType.IsAssignableFrom(control.Control.GetType()));
+        return obj == null || (obj is UIControl control && control.Control.GetType() == ControlType);
     }
 }
 

Source/Editor/CustomEditors/GUI/PropertiesList.cs

@@ -14,9 +14,6 @@ namespace FlaxEditor.CustomEditors.GUI
     public class PropertiesList : PanelWithMargins
     {
         // TODO: sync splitter for whole presenter
-       
-        private const float SplitterPadding = 15;
-        private const float EditorsMinWidthRatio = 0.4f;
 
         /// <summary>
         /// The splitter size (in pixels).
@@ -28,7 +25,6 @@ namespace FlaxEditor.CustomEditors.GUI
         private Rectangle _splitterRect;
         private bool _splitterClicked, _mouseOverSplitter;
         private bool _cursorChanged;
-        private bool _hasCustomSplitterValue;
 
         /// <summary>
         /// Gets or sets the splitter value (always in range [0; 1]).
@@ -70,26 +66,6 @@ namespace FlaxEditor.CustomEditors.GUI
             UpdateSplitRect();
         }
 
-        private void AutoSizeSplitter()
-        {
-            if (_hasCustomSplitterValue || !Editor.Instance.Options.Options.Interface.AutoSizePropertiesPanelSplitter)
-                return;
-
-            Font font = Style.Current.FontMedium;
-
-            float largestWidth = 0f;
-            for (int i = 0; i < _element.Labels.Count; i++)
-            {
-                Label currentLabel = _element.Labels[i];
-                Float2 dimensions = font.MeasureText(currentLabel.Text);
-                float width = dimensions.X + currentLabel.Margin.Left + SplitterPadding;
-
-                largestWidth = Mathf.Max(largestWidth, width);
-            }
-
-            SplitterValue = Mathf.Clamp(largestWidth / Width, 0, 1 - EditorsMinWidthRatio);
-        }
-
         private void UpdateSplitRect()
         {
             _splitterRect = new Rectangle(Mathf.Clamp(_splitterValue * Width - SplitterSize * 0.5f, 0.0f, Width), 0, SplitterSize, Height);
@@ -146,7 +122,6 @@ namespace FlaxEditor.CustomEditors.GUI
                 SplitterValue = location.X / Width;
                 Cursor = CursorType.SizeWE;
                 _cursorChanged = true;
-                _hasCustomSplitterValue = true;
             }
             else if (_mouseOverSplitter)
             {
@@ -220,7 +195,6 @@ namespace FlaxEditor.CustomEditors.GUI
             // Refresh
             UpdateSplitRect();
             PerformLayout(true);
-            AutoSizeSplitter();
         }
 
         /// <inheritdoc />

Source/Editor/Editor.cs

@@ -528,11 +528,7 @@ namespace FlaxEditor
                 var timeSinceLastSave = Time.UnscaledGameTime - _lastAutoSaveTimer;
                 var timeToNextSave = options.AutoSaveFrequency * 60.0f - timeSinceLastSave;
 
-                if (timeToNextSave <= 0.0f && GetWindows().Any(x => x.GUI.Children.Any(c => c is GUI.ContextMenu.ContextMenuBase)))
-                {
-                    // Skip aut-save if any context menu is opened to wait for user to end interaction
-                }
-                else if (timeToNextSave <= 0.0f || _autoSaveNow)
+                if (timeToNextSave <= 0.0f || _autoSaveNow)
                 {
                     Log("Auto save");
                     _lastAutoSaveTimer = Time.UnscaledGameTime;

Source/Editor/EditorIcons.cs

@@ -39,7 +39,6 @@ namespace FlaxEditor
         public SpriteHandle Globe32;
         public SpriteHandle CamSpeed32;
         public SpriteHandle Link32;
-        public SpriteHandle BrokenLink32;
         public SpriteHandle Add32;
         public SpriteHandle Left32;
         public SpriteHandle Right32;
@@ -95,7 +94,6 @@ namespace FlaxEditor
         public SpriteHandle Search64;
         public SpriteHandle Bone64;
         public SpriteHandle Link64;
-        public SpriteHandle BrokenLink64;
         public SpriteHandle Build64;
         public SpriteHandle Add64;
         public SpriteHandle ShipIt64;

Source/Editor/GUI/ContextMenu/ContextMenuBase.cs

@@ -117,10 +117,9 @@ namespace FlaxEditor.GUI.ContextMenu
         public ContextMenuBase()
         : base(0, 0, 120, 32)
         {
-            Visible = false;
-            AutoFocus = true;
-
             _direction = ContextMenuDirection.RightDown;
+            Visible = false;
+
             _isSubMenu = true;
         }
 

Source/Editor/GUI/Dialogs/ColorSelector.cs

@@ -76,8 +76,6 @@ namespace FlaxEditor.GUI.Dialogs
         public ColorSelector(float wheelSize)
         : base(0, 0, wheelSize, wheelSize)
         {
-            AutoFocus = true;
-
             _colorWheelSprite = Editor.Instance.Icons.ColorWheel128;
             _wheelRect = new Rectangle(0, 0, wheelSize, wheelSize);
         }

Source/Editor/GUI/Docking/DockPanelProxy.cs

@@ -1,7 +1,6 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
 using FlaxEditor.GUI.ContextMenu;
-using FlaxEditor.Options;
 using FlaxEngine;
 using FlaxEngine.GUI;
 
@@ -14,12 +13,12 @@ namespace FlaxEditor.GUI.Docking
     public class DockPanelProxy : ContainerControl
     {
         private DockPanel _panel;
-        private InterfaceOptions.TabCloseButtonVisibility closeButtonVisibility;
         private double _dragEnterTime = -1;
-        private float _tabHeight = Editor.Instance.Options.Options.Interface.TabHeight;
-        private bool _useMinimumTabWidth = Editor.Instance.Options.Options.Interface.UseMinimumTabWidth;
-        private float _minimumTabWidth = Editor.Instance.Options.Options.Interface.MinimumTabWidth;
-        private readonly bool _hideTabForSingleTab = Utilities.Utils.HideSingleTabWindowTabBars();
+    #if PLATFORM_WINDOWS
+        private const bool HideTabForSingleTab = true;
+    #else
+        private const bool HideTabForSingleTab = false;
+    #endif
 
         /// <summary>
         /// The is mouse down flag (left button).
@@ -61,8 +60,8 @@ namespace FlaxEditor.GUI.Docking
         /// </summary>
         public DockWindow StartDragAsyncWindow;
 
-        private Rectangle HeaderRectangle => new Rectangle(0, 0, Width, _tabHeight);
-        private bool IsSingleFloatingWindow => _hideTabForSingleTab && _panel.TabsCount == 1 && _panel.IsFloating && _panel.ChildPanelsCount == 0;
+        private Rectangle HeaderRectangle => new Rectangle(0, 0, Width, DockPanel.DefaultHeaderHeight);
+        private bool IsSingleFloatingWindow => HideTabForSingleTab && _panel.TabsCount == 1 && _panel.IsFloating && _panel.ChildPanelsCount == 0;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="DockPanelProxy"/> class.
@@ -71,17 +70,11 @@ namespace FlaxEditor.GUI.Docking
         internal DockPanelProxy(DockPanel panel)
         : base(0, 0, 64, 64)
         {
+            AutoFocus = false;
+
             _panel = panel;
             AnchorPreset = AnchorPresets.StretchAll;
             Offsets = Margin.Zero;
-
-            Editor.Instance.Options.OptionsChanged += OnEditorOptionsChanged;
-            OnEditorOptionsChanged(Editor.Instance.Options.Options);
-        }
-
-        private void OnEditorOptionsChanged(EditorOptions options)
-        {
-            closeButtonVisibility = options.Interface.ShowTabCloseButton;
         }
 
         private DockWindow GetTabAtPos(Float2 position, out bool closeButton)
@@ -92,11 +85,11 @@ namespace FlaxEditor.GUI.Docking
             var tabsCount = _panel.TabsCount;
             if (tabsCount == 1)
             {
-                var crossRect = new Rectangle(Width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
+                var crossRect = new Rectangle(Width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
                 if (HeaderRectangle.Contains(position))
                 {
+                    closeButton = crossRect.Contains(position);
                     result = _panel.GetTab(0);
-                    closeButton = crossRect.Contains(position) && IsCloseButtonVisible(result, closeButtonVisibility);
                 }
             }
             else
@@ -105,17 +98,15 @@ namespace FlaxEditor.GUI.Docking
                 for (int i = 0; i < tabsCount; i++)
                 {
                     var tab = _panel.GetTab(i);
-                    float width = CalculateTabWidth(tab, closeButtonVisibility);
-
-                    if (_useMinimumTabWidth && width < _minimumTabWidth)
-                        width = _minimumTabWidth;
-
-                    var tabRect = new Rectangle(x, 0, width, HeaderRectangle.Height);
+                    var titleSize = tab.TitleSize;
+                    var iconWidth = tab.Icon.IsValid ? DockPanel.DefaultButtonsSize + DockPanel.DefaultLeftTextMargin : 0;
+                    var width = titleSize.X + DockPanel.DefaultButtonsSize + 2 * DockPanel.DefaultButtonsMargin + DockPanel.DefaultLeftTextMargin + DockPanel.DefaultRightTextMargin + iconWidth;
+                    var tabRect = new Rectangle(x, 0, width, DockPanel.DefaultHeaderHeight);
                     var isMouseOver = tabRect.Contains(position);
                     if (isMouseOver)
                     {
-                        var crossRect = new Rectangle(x + width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
-                        closeButton = crossRect.Contains(position) && IsCloseButtonVisible(tab, closeButtonVisibility);
+                        var crossRect = new Rectangle(x + width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
+                        closeButton = crossRect.Contains(position);
                         result = tab;
                         break;
                     }
@@ -126,24 +117,6 @@ namespace FlaxEditor.GUI.Docking
             return result;
         }
 
-        private bool IsCloseButtonVisible(DockWindow win, InterfaceOptions.TabCloseButtonVisibility visibilityMode)
-        {
-            return visibilityMode != InterfaceOptions.TabCloseButtonVisibility.Never &&
-                (visibilityMode == InterfaceOptions.TabCloseButtonVisibility.Always ||
-                (visibilityMode == InterfaceOptions.TabCloseButtonVisibility.SelectedTab && _panel.SelectedTab == win));
-        }
-
-        private float CalculateTabWidth(DockWindow win, InterfaceOptions.TabCloseButtonVisibility visibilityMode)
-        {
-            var iconWidth = win.Icon.IsValid ? DockPanel.DefaultButtonsSize + DockPanel.DefaultLeftTextMargin : 0;
-            var width = win.TitleSize.X + DockPanel.DefaultLeftTextMargin + DockPanel.DefaultRightTextMargin + iconWidth;
-
-            if (IsCloseButtonVisible(win, visibilityMode))
-                width += 2 * DockPanel.DefaultButtonsMargin + DockPanel.DefaultButtonsSize;
-
-            return width;
-        }
-
         private void GetTabRect(DockWindow win, out Rectangle bounds)
         {
             FlaxEngine.Assertions.Assert.IsTrue(_panel.ContainsTab(win));
@@ -161,10 +134,10 @@ namespace FlaxEditor.GUI.Docking
                 {
                     var tab = _panel.GetTab(i);
                     var titleSize = tab.TitleSize;
-                    float width = CalculateTabWidth(tab, closeButtonVisibility);
+                    float width = titleSize.X + DockPanel.DefaultButtonsSize + 2 * DockPanel.DefaultButtonsMargin + DockPanel.DefaultLeftTextMargin + DockPanel.DefaultRightTextMargin;
                     if (tab == win)
                     {
-                        bounds = new Rectangle(x, 0, width, HeaderRectangle.Height);
+                        bounds = new Rectangle(x, 0, width, DockPanel.DefaultHeaderHeight);
                         return;
                     }
                     x += width;
@@ -244,7 +217,7 @@ namespace FlaxEditor.GUI.Docking
                 {
                     Render2D.DrawSprite(
                         tab.Icon,
-                        new Rectangle(DockPanel.DefaultLeftTextMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize),
+                        new Rectangle(DockPanel.DefaultLeftTextMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize),
                         style.Foreground);
 
                 }
@@ -253,20 +226,17 @@ namespace FlaxEditor.GUI.Docking
                 Render2D.DrawText(
                     style.FontMedium,
                     tab.Title,
-                    new Rectangle(DockPanel.DefaultLeftTextMargin + iconWidth, 0, Width - DockPanel.DefaultLeftTextMargin - DockPanel.DefaultButtonsSize - 2 * DockPanel.DefaultButtonsMargin, HeaderRectangle.Height),
+                    new Rectangle(DockPanel.DefaultLeftTextMargin + iconWidth, 0, Width - DockPanel.DefaultLeftTextMargin - DockPanel.DefaultButtonsSize - 2 * DockPanel.DefaultButtonsMargin, DockPanel.DefaultHeaderHeight),
                     style.Foreground,
                     TextAlignment.Near,
                     TextAlignment.Center);
 
-                if (IsCloseButtonVisible(tab, closeButtonVisibility))
-                {
-                    // Draw cross
-                    var crossRect = new Rectangle(Width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
-                    bool isMouseOverCross = isMouseOver && crossRect.Contains(MousePosition);
-                    if (isMouseOverCross)
-                        Render2D.FillRectangle(crossRect, (containsFocus ? style.BackgroundSelected : style.LightBackground) * 1.3f);
-                    Render2D.DrawSprite(style.Cross, crossRect, isMouseOverCross ? style.Foreground : style.ForegroundGrey);
-                }
+                // Draw cross
+                var crossRect = new Rectangle(Width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
+                bool isMouseOverCross = isMouseOver && crossRect.Contains(MousePosition);
+                if (isMouseOverCross)
+                    Render2D.FillRectangle(crossRect, (containsFocus ? style.BackgroundSelected : style.LightBackground) * 1.3f);
+                Render2D.DrawSprite(style.Cross, crossRect, isMouseOverCross ? style.Foreground : style.ForegroundGrey);
             }
             else
             {
@@ -280,14 +250,10 @@ namespace FlaxEditor.GUI.Docking
                     // Cache data
                     var tab = _panel.GetTab(i);
                     var tabColor = Color.Black;
+                    var titleSize = tab.TitleSize;
                     var iconWidth = tab.Icon.IsValid ? DockPanel.DefaultButtonsSize + DockPanel.DefaultLeftTextMargin : 0;
-
-                    float width = CalculateTabWidth(tab, closeButtonVisibility);
-
-                    if (_useMinimumTabWidth && width < _minimumTabWidth)
-                        width = _minimumTabWidth;
-
-                    var tabRect = new Rectangle(x, 0, width, headerRect.Height);
+                    var width = titleSize.X + DockPanel.DefaultButtonsSize + 2 * DockPanel.DefaultButtonsMargin + DockPanel.DefaultLeftTextMargin + DockPanel.DefaultRightTextMargin + iconWidth;
+                    var tabRect = new Rectangle(x, 0, width, DockPanel.DefaultHeaderHeight);
                     var isMouseOver = tabRect.Contains(MousePosition);
                     var isSelected = _panel.SelectedTab == tab;
 
@@ -314,7 +280,7 @@ namespace FlaxEditor.GUI.Docking
                     {
                         Render2D.DrawSprite(
                             tab.Icon,
-                            new Rectangle(x + DockPanel.DefaultLeftTextMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize),
+                            new Rectangle(x + DockPanel.DefaultLeftTextMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize),
                             style.Foreground);
 
                     }
@@ -323,27 +289,27 @@ namespace FlaxEditor.GUI.Docking
                     Render2D.DrawText(
                         style.FontMedium,
                         tab.Title,
-                        new Rectangle(x + DockPanel.DefaultLeftTextMargin + iconWidth, 0, 10000, HeaderRectangle.Height),
+                        new Rectangle(x + DockPanel.DefaultLeftTextMargin + iconWidth, 0, 10000, DockPanel.DefaultHeaderHeight),
                         style.Foreground,
                         TextAlignment.Near,
                         TextAlignment.Center);
 
                     // Draw cross
-                    if (IsCloseButtonVisible(tab, closeButtonVisibility))
+                    if (isSelected || isMouseOver)
                     {
-                        var crossRect = new Rectangle(x + width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (HeaderRectangle.Height - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
+                        var crossRect = new Rectangle(x + width - DockPanel.DefaultButtonsSize - DockPanel.DefaultButtonsMargin, (DockPanel.DefaultHeaderHeight - DockPanel.DefaultButtonsSize) / 2, DockPanel.DefaultButtonsSize, DockPanel.DefaultButtonsSize);
                         bool isMouseOverCross = isMouseOver && crossRect.Contains(MousePosition);
                         if (isMouseOverCross)
                             Render2D.FillRectangle(crossRect, tabColor * 1.3f);
                         Render2D.DrawSprite(style.Cross, crossRect, isMouseOverCross ? style.Foreground : style.ForegroundGrey);
                     }
 
-                    // Set the start position for the next tab
+                    // Move
                     x += width;
                 }
 
                 // Draw selected tab strip
-                Render2D.FillRectangle(new Rectangle(0, HeaderRectangle.Height - 2, Width, 2), containsFocus ? style.BackgroundSelected : style.BackgroundNormal);
+                Render2D.FillRectangle(new Rectangle(0, DockPanel.DefaultHeaderHeight - 2, Width, 2), containsFocus ? style.BackgroundSelected : style.BackgroundNormal);
             }
         }
 
@@ -576,7 +542,7 @@ namespace FlaxEditor.GUI.Docking
             if (IsSingleFloatingWindow)
                 rect = new Rectangle(0, 0, Width, Height);
             else
-                rect = new Rectangle(0, HeaderRectangle.Height, Width, Height - HeaderRectangle.Height);
+                rect = new Rectangle(0, DockPanel.DefaultHeaderHeight, Width, Height - DockPanel.DefaultHeaderHeight);
         }
 
         private DragDropEffect TrySelectTabUnderLocation(ref Float2 location)

Source/Editor/GUI/Input/SliderControl.cs

@@ -368,8 +368,6 @@ namespace FlaxEditor.GUI.Input
         public SliderControl(float value, float x = 0, float y = 0, float width = 120, float min = float.MinValue, float max = float.MaxValue)
         : base(x, y, width, TextBox.DefaultHeight)
         {
-            AutoFocus = true;
-
             _min = min;
             _max = max;
             _value = Mathf.Clamp(value, min, max);

Source/Editor/GUI/ItemsListContextMenu.cs

@@ -514,15 +514,20 @@ namespace FlaxEditor.GUI
             var items = ItemsPanel.Children;
             for (int i = 0; i < items.Count; i++)
             {
-                var currentItem = items[i];
-                if (currentItem is Item item && item.Visible)
+                if (items[i] is Item item && item.Visible)
                     result.Add(item);
-                else if (currentItem is DropPanel category && (!ignoreFoldedCategories || !category.IsClosed) && currentItem.Visible)
+            }
+            if (_categoryPanels != null)
+            {
+                for (int i = 0; i < _categoryPanels.Count; i++)
                 {
+                    var category = _categoryPanels[i];
+                    if (!category.Visible || (ignoreFoldedCategories && category is DropPanel panel && panel.IsClosed))
+                        continue;
                     for (int j = 0; j < category.Children.Count; j++)
                     {
-                        if (category.Children[j] is Item categoryItem && categoryItem.Visible)
-                            result.Add(categoryItem);
+                        if (category.Children[j] is Item item2 && item2.Visible)
+                            result.Add(item2);
                     }
                 }
             }
@@ -586,6 +591,10 @@ namespace FlaxEditor.GUI
                 var items = GetVisibleItems(!controlDown);
                 var focusedIndex = items.IndexOf(focusedItem);
 
+                // If the user hasn't selected anything yet and is holding control, focus first folded item
+                if (focusedIndex == -1 && controlDown)
+                    focusedIndex = GetVisibleItems(true).Count - 1;
+
                 int delta = key == KeyboardKeys.ArrowDown ? -1 : 1;
                 int nextIndex = Mathf.Wrap(focusedIndex - delta, 0, items.Count - 1);
                 var nextItem = items[nextIndex];

Source/Editor/GUI/NavigationBar.cs

@@ -11,9 +11,6 @@ namespace FlaxEditor.GUI
     /// <seealso cref="FlaxEngine.GUI.Panel" />
     public class NavigationBar : Panel
     {
-        private float _toolstripHeight = 0;
-        private Margin _toolstripMargin;
-
         /// <summary>
         /// The default buttons margin.
         /// </summary>
@@ -53,42 +50,9 @@ namespace FlaxEditor.GUI
         {
             if (toolstrip == null)
                 return;
-
-            if (_toolstripHeight <= 0.0f)
-            {
-                // Cache initial toolstrip state
-                _toolstripHeight = toolstrip.Height;
-                _toolstripMargin = toolstrip.ItemsMargin;
-            }
-
-            // Control toolstrip bottom margin to prevent navigation bar scroll going over the buttons
-            var toolstripLocked = toolstrip.IsLayoutLocked;
-            toolstrip.IsLayoutLocked = true;
-            var toolstripHeight = _toolstripHeight;
-            var toolstripMargin = _toolstripMargin;
-            if (HScrollBar.Visible)
-            {
-                float scrollMargin = 8;
-                toolstripHeight += scrollMargin;
-                toolstripMargin.Bottom += scrollMargin;
-            }
-            toolstrip.Height = toolstripHeight;
-            toolstrip.IsLayoutLocked = toolstripLocked;
-            toolstrip.ItemsMargin = toolstripMargin;
-
             var lastToolstripButton = toolstrip.LastButton;
             var parentSize = Parent.Size;
             Bounds = new Rectangle(lastToolstripButton.Right + 8.0f, 0, parentSize.X - X - 8.0f, toolstrip.Height);
         }
-
-        /// <inheritdoc />
-        public override void PerformLayout(bool force = false)
-        {
-            base.PerformLayout(force);
-
-            // Stretch excluding toolstrip margin to fill the space
-            if (Parent is ToolStrip toolStrip)
-                Height = toolStrip.Height;
-        }
     }
 }

Source/Editor/GUI/Popups/RenamePopup.cs

@@ -130,10 +130,6 @@ namespace FlaxEditor.GUI
         /// <returns>Created popup.</returns>
         public static RenamePopup Show(Control control, Rectangle area, string value, bool isMultiline)
         {
-            // hardcoded flushing layout for tree controls
-            if (control is Tree.TreeNode treeNode && treeNode.ParentTree != null)
-                treeNode.ParentTree.FlushPendingPerformLayout();
-
             // Calculate the control size in the window space to handle scaled controls
             var upperLeft = control.PointToWindow(area.UpperLeft);
             var bottomRight = control.PointToWindow(area.BottomRight);

Source/Editor/GUI/ToolStrip.cs

@@ -13,7 +13,15 @@ namespace FlaxEditor.GUI
     /// <seealso cref="FlaxEngine.GUI.ContainerControl" />
     public class ToolStrip : ContainerControl
     {
-        private Margin _itemsMargin;
+        /// <summary>
+        /// The default margin vertically.
+        /// </summary>
+        public const int DefaultMarginV = 1;
+
+        /// <summary>
+        /// The default margin horizontally.
+        /// </summary>
+        public const int DefaultMarginH = 2;
 
         /// <summary>
         /// Event fired when button gets clicked with the primary mouse button.
@@ -58,26 +66,10 @@ namespace FlaxEditor.GUI
             }
         }
 
-        /// <summary>
-        /// Gets or sets the space around items.
-        /// </summary>
-        public Margin ItemsMargin
-        {
-            get => _itemsMargin;
-            set
-            {
-                if (_itemsMargin != value)
-                {
-                    _itemsMargin = value;
-                    PerformLayout();
-                }
-            }
-        }
-
         /// <summary>
         /// Gets the height for the items.
         /// </summary>
-        public float ItemsHeight => Height - _itemsMargin.Height;
+        public float ItemsHeight => Height - 2 * DefaultMarginV;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="ToolStrip"/> class.
@@ -90,7 +82,6 @@ namespace FlaxEditor.GUI
             AnchorPreset = AnchorPresets.HorizontalStretchTop;
             BackgroundColor = Style.Current.LightBackground;
             Offsets = new Margin(0, 0, y, height * Editor.Instance.Options.Options.Interface.IconsScale);
-            _itemsMargin = new Margin(2, 2, 1, 1);
         }
 
         /// <summary>
@@ -170,7 +161,7 @@ namespace FlaxEditor.GUI
         protected override void PerformLayoutBeforeChildren()
         {
             // Arrange controls
-            float x = _itemsMargin.Left;
+            float x = DefaultMarginH;
             float h = ItemsHeight;
             for (int i = 0; i < _children.Count; i++)
             {
@@ -178,8 +169,8 @@ namespace FlaxEditor.GUI
                 if (c.Visible)
                 {
                     var w = c.Width;
-                    c.Bounds = new Rectangle(x, _itemsMargin.Top, w, h);
-                    x += w + _itemsMargin.Width;
+                    c.Bounds = new Rectangle(x, DefaultMarginV, w, h);
+                    x += w + DefaultMarginH;
                 }
             }
         }

Source/Editor/GUI/Tree/Tree.cs

@@ -41,7 +41,6 @@ namespace FlaxEditor.GUI.Tree
         private Margin _margin;
         private bool _autoSize = true;
         private bool _deferLayoutUpdate = false;
-        private TreeNode _lastSelectedNode;
 
         /// <summary>
         /// The TreeNode that is being dragged over. This could have a value when not dragging.
@@ -68,7 +67,7 @@ namespace FlaxEditor.GUI.Tree
         /// Gets the first selected node or null.
         /// </summary>
         public TreeNode SelectedNode => Selection.Count > 0 ? Selection[0] : null;
-
+        
         /// <summary>
         /// Allow nodes to Draw the root tree line.
         /// </summary>
@@ -365,19 +364,6 @@ namespace FlaxEditor.GUI.Tree
             BulkSelectUpdateExpanded(false);
         }
 
-        /// <summary>
-        /// Flushes any pending layout perming action that has been delayed until next update to optimize performance of the complex tree hierarchy.
-        /// </summary>
-        public void FlushPendingPerformLayout()
-        {
-            if (_deferLayoutUpdate)
-            {
-                base.PerformLayout();
-                AfterDeferredLayout?.Invoke();
-                _deferLayoutUpdate = false;
-            }
-        }
-
         /// <inheritdoc />
         public override void PerformLayout(bool force = false)
         {
@@ -392,31 +378,25 @@ namespace FlaxEditor.GUI.Tree
         public override void Update(float deltaTime)
         {
             if (_deferLayoutUpdate)
-                FlushPendingPerformLayout();
-            var window = Root;
-            bool shiftDown = window.GetKey(KeyboardKeys.Shift);
-            bool keyUpArrow = window.GetKey(KeyboardKeys.ArrowUp);
-            bool keyDownArrow = window.GetKey(KeyboardKeys.ArrowDown);
+            {
+                base.PerformLayout();
+                AfterDeferredLayout?.Invoke();
+                _deferLayoutUpdate = false;
+            }
 
-            // Use last selection for last selected node if sift is down
-            if (Selection.Count < 2)
-                _lastSelectedNode = null;
-            else if (shiftDown)
-                _lastSelectedNode ??= Selection[^1];
-
-            // Skip root to prevent blocking input
-            if (_lastSelectedNode != null && _lastSelectedNode.IsRoot)
-                _lastSelectedNode = null;
-
-            var node = _lastSelectedNode ?? SelectedNode;
+            var node = SelectedNode;
 
             // Check if has focus and if any node is focused and it isn't a root
             if (ContainsFocus && node != null && node.AutoFocus)
             {
+                var window = Root;
                 if (window.GetKeyDown(KeyboardKeys.ArrowUp) || window.GetKeyDown(KeyboardKeys.ArrowDown))
                     _keyUpdateTime = KeyUpdateTimeout;
                 if (_keyUpdateTime >= KeyUpdateTimeout && window is WindowRootControl windowRoot && windowRoot.Window.IsFocused)
                 {
+                    bool keyUpArrow = window.GetKey(KeyboardKeys.ArrowUp);
+                    bool keyDownArrow = window.GetKey(KeyboardKeys.ArrowDown);
+
                     // Check if arrow flags are different
                     if (keyDownArrow != keyUpArrow)
                     {
@@ -426,38 +406,24 @@ namespace FlaxEditor.GUI.Tree
                         Assert.AreNotEqual(-1, myIndex);
 
                         // Up
-                        List<TreeNode> toSelect = new List<TreeNode>();
-                        if (shiftDown && _supportMultiSelect)
-                        {
-                            toSelect.AddRange(Selection);
-                        }
+                        TreeNode toSelect = null;
                         if (keyUpArrow)
                         {
                             if (myIndex == 0)
                             {
                                 // Select parent
-                                if (toSelect.Contains(parentNode))
-                                    toSelect.Remove(node);
-                                else if (parentNode != null)
-                                    toSelect.Add(parentNode);
-                                _lastSelectedNode = parentNode;
+                                toSelect = parentNode;
                             }
                             else
                             {
                                 // Select previous parent child
-                                var select = nodeParent.GetChild(myIndex - 1) as TreeNode;
+                                toSelect = nodeParent.GetChild(myIndex - 1) as TreeNode;
 
                                 // Select last child if is valid and expanded and has any children
-                                if (select != null && select.IsExpanded && select.HasAnyVisibleChild)
+                                if (toSelect != null && toSelect.IsExpanded && toSelect.HasAnyVisibleChild)
                                 {
-                                    select = select.GetChild(select.ChildrenCount - 1) as TreeNode;
+                                    toSelect = toSelect.GetChild(toSelect.ChildrenCount - 1) as TreeNode;
                                 }
-
-                                if (select == null || toSelect.Contains(select))
-                                    toSelect.Remove(node);
-                                else
-                                    toSelect.Add(select);
-                                _lastSelectedNode = select;
                             }
                         }
                         // Down
@@ -466,48 +432,32 @@ namespace FlaxEditor.GUI.Tree
                             if (node.IsExpanded && node.HasAnyVisibleChild)
                             {
                                 // Select the first child
-                                var select = node.GetChild(0) as TreeNode;
-                                if (select == null || toSelect.Contains(select))
-                                    toSelect.Remove(node);
-                                else
-                                    toSelect.Add(select);
-                                _lastSelectedNode = select;
+                                toSelect = node.GetChild(0) as TreeNode;
                             }
                             else if (myIndex == nodeParent.ChildrenCount - 1)
                             {
                                 // Select next node after parent
-                                TreeNode select = null;
-                                while (parentNode != null && select == null)
+                                while (parentNode != null && toSelect == null)
                                 {
                                     int parentIndex = parentNode.IndexInParent;
                                     if (parentIndex != -1 && parentIndex < parentNode.Parent.ChildrenCount - 1)
                                     {
-                                        select = parentNode.Parent.GetChild(parentIndex + 1) as TreeNode;
+                                        toSelect = parentNode.Parent.GetChild(parentIndex + 1) as TreeNode;
                                     }
                                     parentNode = parentNode.Parent as TreeNode;
                                 }
-                                if (select == null || toSelect.Contains(select))
-                                    toSelect.Remove(node);
-                                else
-                                    toSelect.Add(select);
-                                _lastSelectedNode = select;
                             }
                             else
                             {
                                 // Select next parent child
-                                var select = nodeParent.GetChild(myIndex + 1) as TreeNode;
-                                if (select == null || toSelect.Contains(select))
-                                    toSelect.Remove(node);
-                                else
-                                    toSelect.Add(select);
-                                _lastSelectedNode = select;
+                                toSelect = nodeParent.GetChild(myIndex + 1) as TreeNode;
                             }
                         }
-                        if (toSelect.Count > 0)
+                        if (toSelect != null && toSelect.AutoFocus)
                         {
                             // Select
                             Select(toSelect);
-                            _lastSelectedNode?.Focus();
+                            toSelect.Focus();
                         }
 
                         // Reset time

Source/Editor/GUI/Tree/TreeNode.cs

@@ -319,8 +319,6 @@ namespace FlaxEditor.GUI.Tree
         public TreeNode(bool canChangeOrder, SpriteHandle iconCollapsed, SpriteHandle iconOpened)
         : base(0, 0, 64, 16)
         {
-            AutoFocus = true;
-
             _canChangeOrder = canChangeOrder;
             _animationProgress = 1.0f;
             _cachedHeight = _headerHeight;

Source/Editor/Gizmo/TransformGizmo.cs

@@ -155,7 +155,6 @@ namespace FlaxEditor.Gizmo
             // Ensure player is not moving objects
             if (ActiveAxis != Axis.None)
                 return;
-            Profiler.BeginEvent("Pick");
 
             // Get mouse ray and try to hit any object
             var ray = Owner.MouseRay;
@@ -244,8 +243,6 @@ namespace FlaxEditor.Gizmo
             {
                 sceneEditing.Deselect();
             }
-
-            Profiler.EndEvent();
         }
 
         /// <inheritdoc />

Source/Editor/Managed/ManagedEditor.cpp

@@ -11,7 +11,6 @@
 #include "Engine/Scripting/ManagedCLR/MClass.h"
 #include "Engine/Scripting/ManagedCLR/MException.h"
 #include "Engine/Scripting/Internal/MainThreadManagedInvokeAction.h"
-#include "Engine/Platform/WindowsManager.h"
 #include "Engine/Content/Assets/VisualScript.h"
 #include "Engine/Content/Content.h"
 #include "Engine/Level/Actor.h"
@@ -628,14 +627,6 @@ void ManagedEditor::WipeOutLeftoverSceneObjects()
         ObjectsRemovalService::Flush();
 }
 
-Array<Window*> ManagedEditor::GetWindows()
-{
-    WindowsManager::WindowsLocker.Lock();
-    auto result = WindowsManager::Windows;
-    WindowsManager::WindowsLocker.Unlock();
-    return result;
-}
-
 void ManagedEditor::OnEditorAssemblyLoaded(MAssembly* assembly)
 {
     ASSERT(!HasManagedInstance());

Source/Editor/Managed/ManagedEditor.h

@@ -259,7 +259,6 @@ public:
     API_FUNCTION(Internal) static Array<VisualScriptLocal> GetVisualScriptLocals();
     API_FUNCTION(Internal) static bool EvaluateVisualScriptLocal(VisualScript* script, API_PARAM(Ref) VisualScriptLocal& local);
     API_FUNCTION(Internal) static void WipeOutLeftoverSceneObjects();
-    API_FUNCTION(Internal) static Array<Window*> GetWindows();
 
 private:
     void OnEditorAssemblyLoaded(MAssembly* assembly);

Source/Editor/Modules/PrefabsModule.cs

@@ -254,29 +254,18 @@ namespace FlaxEditor.Modules
             PrefabApplying?.Invoke(prefab, instance);
 
             // When applying changes to prefab from actor in level ignore it's root transformation (see ActorEditor.ProcessDiff)
-            Actor prefabRoot = null;
             var originalTransform = instance.LocalTransform;
             var originalName = instance.Name;
-            if (instance.HasScene)
+            if (instance.IsPrefabRoot && instance.HasScene)
             {
-                prefabRoot = instance.GetPrefabRoot();
-                if (prefabRoot != null && prefabRoot.IsPrefabRoot && instance.HasScene)
-                {
-                    var defaultInstance = prefab.GetDefaultInstance();
-                    originalTransform = prefabRoot.LocalTransform;
-                    originalName = prefabRoot.Name;
-                    prefabRoot.LocalTransform = defaultInstance.Transform;
-                    prefabRoot.Name = defaultInstance.Name;
-                }
+                instance.LocalTransform = prefab.GetDefaultInstance().Transform;
+                instance.Name = prefab.GetDefaultInstance().Name;
             }
 
             // Call backend
             var failed = PrefabManager.Internal_ApplyAll(FlaxEngine.Object.GetUnmanagedPtr(instance));
-            if (prefabRoot != null)
-            {
-                prefabRoot.LocalTransform = originalTransform;
-                prefabRoot.Name = originalName;
-            }
+            instance.LocalTransform = originalTransform;
+            instance.Name = originalName;
             if (failed)
                 throw new Exception("Failed to apply the prefab. See log to learn more.");
 

Source/Editor/Modules/SceneModule.cs

@@ -569,10 +569,6 @@ namespace FlaxEditor.Modules
                 return;
             }
 
-            // Skip if already added
-            if (SceneGraphFactory.Nodes.ContainsKey(actor.ID))
-                return;
-
             var node = SceneGraphFactory.BuildActorNode(actor);
             if (node != null)
             {

Source/Editor/Modules/SourceCodeEditing/InBuildSourceCodeEditor.cs

@@ -54,9 +54,6 @@ namespace FlaxEditor.Modules.SourceCodeEditing
             case CodeEditorTypes.VS2022:
                 Name = "Visual Studio 2022";
                 break;
-            case CodeEditorTypes.VS2026:
-                Name = "Visual Studio 2026";
-                break;
             case CodeEditorTypes.VSCode:
                 Name = "Visual Studio Code";
                 break;
@@ -113,7 +110,6 @@ namespace FlaxEditor.Modules.SourceCodeEditing
             case CodeEditorTypes.VS2017:
             case CodeEditorTypes.VS2019:
             case CodeEditorTypes.VS2022:
-            case CodeEditorTypes.VS2026:
                 // TODO: finish dynamic files adding to the project
                 //Editor.Instance.ProgressReporting.GenerateScriptsProjectFiles.RunAsync();
                 break;

Source/Editor/Options/InputOptions.cs

@@ -652,47 +652,43 @@ namespace FlaxEditor.Options
 
         #endregion
 
-        #region Node Editors
+        #region Node editors
 
         [DefaultValue(typeof(InputBinding), "Shift+W")]
-        [EditorDisplay("Node Editors"), EditorOrder(4500)]
+        [EditorDisplay("Node editors"), EditorOrder(4500)]
         public InputBinding NodesAlignTop = new InputBinding(KeyboardKeys.W, KeyboardKeys.Shift);
 
         [DefaultValue(typeof(InputBinding), "Shift+A")]
-        [EditorDisplay("Node Editors"), EditorOrder(4510)]
+        [EditorDisplay("Node editors"), EditorOrder(4510)]
         public InputBinding NodesAlignLeft = new InputBinding(KeyboardKeys.A, KeyboardKeys.Shift);
 
         [DefaultValue(typeof(InputBinding), "Shift+S")]
-        [EditorDisplay("Node Editors"), EditorOrder(4520)]
+        [EditorDisplay("Node editors"), EditorOrder(4520)]
         public InputBinding NodesAlignBottom = new InputBinding(KeyboardKeys.S, KeyboardKeys.Shift);
 
         [DefaultValue(typeof(InputBinding), "Shift+D")]
-        [EditorDisplay("Node Editors"), EditorOrder(4530)]
+        [EditorDisplay("Node editors"), EditorOrder(4530)]
         public InputBinding NodesAlignRight = new InputBinding(KeyboardKeys.D, KeyboardKeys.Shift);
 
         [DefaultValue(typeof(InputBinding), "Alt+Shift+W")]
-        [EditorDisplay("Node Editors"), EditorOrder(4540)]
+        [EditorDisplay("Node editors"), EditorOrder(4540)]
         public InputBinding NodesAlignMiddle = new InputBinding(KeyboardKeys.W, KeyboardKeys.Shift, KeyboardKeys.Alt);
 
         [DefaultValue(typeof(InputBinding), "Alt+Shift+S")]
-        [EditorDisplay("Node Editors"), EditorOrder(4550)]
+        [EditorDisplay("Node editors"), EditorOrder(4550)]
         public InputBinding NodesAlignCenter = new InputBinding(KeyboardKeys.S, KeyboardKeys.Shift, KeyboardKeys.Alt);
 
         [DefaultValue(typeof(InputBinding), "Q")]
-        [EditorDisplay("Node Editors"), EditorOrder(4560)]
+        [EditorDisplay("Node editors"), EditorOrder(4560)]
         public InputBinding NodesAutoFormat = new InputBinding(KeyboardKeys.Q);
 
-        [DefaultValue(typeof(InputBinding), "Shift+Q")]
-        [EditorDisplay("Node Editors"), EditorOrder(4560)]
-        public InputBinding NodesStraightenConnections = new InputBinding(KeyboardKeys.Q, KeyboardKeys.Shift);
+        [DefaultValue(typeof(InputBinding), "None")]
+        [EditorDisplay("Node editors"), EditorOrder(4570)]
+        public InputBinding NodesDistributeHorizontal = new InputBinding(KeyboardKeys.None);
 
-        [DefaultValue(typeof(InputBinding), "Alt+W")]
-        [EditorDisplay("Node Editors"), EditorOrder(4570)]
-        public InputBinding NodesDistributeHorizontal = new InputBinding(KeyboardKeys.W, KeyboardKeys.Alt);
-
-        [DefaultValue(typeof(InputBinding), "Alt+A")]
-        [EditorDisplay("Node Editors"), EditorOrder(4580)]
-        public InputBinding NodesDistributeVertical = new InputBinding(KeyboardKeys.A, KeyboardKeys.Alt);
+        [DefaultValue(typeof(InputBinding), "None")]
+        [EditorDisplay("Node editors"), EditorOrder(4580)]
+        public InputBinding NodesDistributeVertical = new InputBinding(KeyboardKeys.None);
 
         #endregion
     }

Source/Editor/Options/InterfaceOptions.cs

@@ -76,25 +76,6 @@ namespace FlaxEditor.Options
             DockBottom = DockState.DockBottom
         }
 
-        /// <summary>
-        /// Options for the visibility status of the tab close button.
-        /// </summary>
-        public enum TabCloseButtonVisibility
-        {
-            /// <summary>
-            /// Never show the close button.
-            /// </summary>
-            Never,
-            /// <summary>
-            /// Show the close button on tabs that are currently selected.
-            /// </summary>
-            SelectedTab,
-            /// <summary>
-            /// Show the close button on all tabs that can be closed.
-            /// </summary>
-            Always
-        }
-
         /// <summary>
         /// Options for the action taken by the play button.
         /// </summary>
@@ -213,6 +194,13 @@ namespace FlaxEditor.Options
         [DefaultValue(1.0f), Limit(0.1f, 10.0f)]
         [EditorDisplay("Interface"), EditorOrder(10), Tooltip("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.")]
         public float InterfaceScale { get; set; } = 1.0f;
+        
+        /// <summary>
+        /// Gets or sets a value indicating whether use native window title bar decorations in child windows. Editor restart required.
+        /// </summary>
+        [DefaultValue(WindowDecorationsType.AutoChildOnly)]
+        [EditorDisplay("Interface"), EditorOrder(70), Tooltip("Determines whether use native window title bar decorations. Editor restart required.")]
+        public WindowDecorationsType WindowDecorations { get; set; } = WindowDecorationsType.AutoChildOnly;
 
         /// <summary>
         /// Gets or sets a value indicating whether show selected camera preview in the editor window.
@@ -221,6 +209,20 @@ namespace FlaxEditor.Options
         [EditorDisplay("Interface"), EditorOrder(80), Tooltip("Determines whether show selected camera preview in the edit window.")]
         public bool ShowSelectedCameraPreview { get; set; } = true;
 
+        /// <summary>
+        /// Gets or sets a value indicating whether center mouse position on window focus in play mode. Helps when working with games that lock mouse cursor.
+        /// </summary>
+        [DefaultValue(false)]
+        [EditorDisplay("Interface", "Center Mouse On Game Window Focus"), EditorOrder(100), Tooltip("Determines whether center mouse position on window focus in play mode. Helps when working with games that lock mouse cursor.")]
+        public bool CenterMouseOnGameWinFocus { get; set; } = false;
+
+        /// <summary>
+        /// Gets or sets the method window opening.
+        /// </summary>
+        [DefaultValue(DockStateProxy.Float)]
+        [EditorDisplay("Interface", "New Window Location"), EditorOrder(150), Tooltip("Define the opening method for new windows, open in a new tab by default.")]
+        public DockStateProxy NewWindowLocation { get; set; } = DockStateProxy.Float;
+
         /// <summary>
         /// Gets or sets the editor icons scale. Editor restart required.
         /// </summary>
@@ -256,13 +258,6 @@ namespace FlaxEditor.Options
         [EditorDisplay("Interface"), EditorOrder(310)]
         public bool SeparateValueAndUnit { get; set; }
 
-        /// <summary>
-        /// Gets or sets the option to auto size the Properties panel splitter based on the longest property name. Editor restart recommended.
-        /// </summary>
-        [DefaultValue(false)]
-        [EditorDisplay("Interface"), EditorOrder(311)]
-        public bool AutoSizePropertiesPanelSplitter { get; set; }
-
         /// <summary>
         /// Gets or sets tree line visibility.
         /// </summary>
@@ -296,73 +291,6 @@ namespace FlaxEditor.Options
         [EditorDisplay("Interface"), EditorOrder(322)]
         public bool ScrollToScriptOnAdd { get; set; } = true;
 
-#if PLATFORM_SDL
-        /// <summary>
-        /// Gets or sets a value indicating whether use native window title bar decorations in child windows. Editor restart required.
-        /// </summary>
-        [DefaultValue(WindowDecorationsType.AutoChildOnly)]
-        [EditorDisplay("Interface"), EditorOrder(70), Tooltip("Determines whether use native window title bar decorations. Editor restart required.")]
-        public WindowDecorationsType WindowDecorations { get; set; } = WindowDecorationsType.AutoChildOnly;
-#elif PLATFORM_WINDOWS
-        /// <summary>
-        /// Gets or sets a value indicating whether use native window title bar. Editor restart required.
-        /// </summary>
-        [DefaultValue(false)]
-        [EditorDisplay("Tabs & Windows"), EditorOrder(70), Tooltip("Determines whether use native window title bar. Editor restart required.")]
-        public bool UseNativeWindowSystem { get; set; } = false;
-#endif
-
-#if PLATFORM_SDL || PLATFORM_WINDOWS
-        /// <summary>
-        /// Gets or sets a value indicating whether a window containing a single tabs hides the tab bar. Editor restart recommended.
-        /// </summary>
-        [DefaultValue(true)]
-        [EditorDisplay("Tabs & Windows", "Hide Single-Tab Window Tab Bars"), EditorOrder(71)]
-        public bool HideSingleTabWindowTabBars { get; set; } = true;
-#endif
-
-        /// <summary>
-        /// Gets or sets a value indicating wether the minum tab width should be used. Editor restart required.
-        /// </summary>
-        [DefaultValue(false)]
-        [EditorDisplay("Tabs & Windows"), EditorOrder(99)]
-        public bool UseMinimumTabWidth { get; set; } = false;
-
-        /// <summary>
-        /// Gets or sets a value indicating the minimum tab width. If a tab is smaller than this width, its width will be set to this. Editor restart required.
-        /// </summary>
-        [DefaultValue(80.0f), Limit(50.0f, 150.0f)]
-        [EditorDisplay("Tabs & Windows"), EditorOrder(99), VisibleIf(nameof(UseMinimumTabWidth))]
-        public float MinimumTabWidth { get; set; } = 80.0f;
-
-        /// <summary>
-        /// Gets or sets a value indicating the height of window tabs. Editor restart required.
-        /// </summary>
-        [DefaultValue(20.0f), Limit(15.0f, 40.0f)]
-        [EditorDisplay("Tabs & Windows"), EditorOrder(100)]
-        public float TabHeight { get; set; } = 20.0f;
-
-        /// <summary>
-        /// Gets or sets a value indicating whether center mouse position on window focus in play mode. Helps when working with games that lock mouse cursor.
-        /// </summary>
-        [DefaultValue(false)]
-        [EditorDisplay("Tabs & Windows", "Center Mouse On Game Window Focus"), EditorOrder(101), Tooltip("Determines whether center mouse position on window focus in play mode. Helps when working with games that lock mouse cursor.")]
-        public bool CenterMouseOnGameWinFocus { get; set; } = false;
-
-        /// <summary>
-        /// Gets or sets the method window opening.
-        /// </summary>
-        [DefaultValue(DockStateProxy.Float)]
-        [EditorDisplay("Tabs & Windows", "New Window Location"), EditorOrder(150), Tooltip("Define the opening method for new windows, open in a new tab by default.")]
-        public DockStateProxy NewWindowLocation { get; set; } = DockStateProxy.Float;
-
-        /// <summary>
-        /// Gets or sets a value indicating when the tab close button should be visible.
-        /// </summary>
-        [DefaultValue(TabCloseButtonVisibility.SelectedTab)]
-        [EditorDisplay("Tabs & Windows"), EditorOrder(151)]
-        public TabCloseButtonVisibility ShowTabCloseButton { get; set; } = TabCloseButtonVisibility.SelectedTab;
-
         /// <summary>
         /// Gets or sets the timestamps prefix mode for output log messages.
         /// </summary>
@@ -518,12 +446,6 @@ namespace FlaxEditor.Options
         [DefaultValue(1), Range(1, 4)]
         [EditorDisplay("Cook & Run"), EditorOrder(600)]
         public int NumberOfGameClientsToLaunch = 1;
-        
-        /// <summary>
-        /// Gets or sets the build configuration to use when using Cook and Run option in the editor.
-        /// </summary>
-        [EditorDisplay("Cook & Run"), EditorOrder(601), ExpandGroups, Tooltip("The build configuration to use when using Cook and Run option in the editor.")]
-        public BuildConfiguration CookAndRunBuildConfiguration { get; set; } = BuildConfiguration.Development;
 
         /// <summary>
         /// Gets or sets the curvature of the line connecting to connected visject nodes.

Source/Editor/SceneGraph/Actors/StaticModelNode.cs

@@ -141,8 +141,6 @@ namespace FlaxEditor.SceneGraph.Actors
             b.TooltipText = "Add a box collider to every selected model that will auto resize based on the model bounds.";
             b = menu.ContextMenu.AddButton("Sphere", () => OnAddCollider(window, CreateSphere));
             b.TooltipText = "Add a sphere collider to every selected model that will auto resize based on the model bounds.";
-            b = menu.ContextMenu.AddButton("Capsule", () => OnAddCollider(window, CreateCapsule));
-            b.TooltipText = "Add a capsule collider to every selected model that will auto resize based on the model bounds.";
             b = menu.ContextMenu.AddButton("Convex", () => OnAddCollider(window, CreateConvex));
             b.TooltipText = "Generate and add a convex collider for every selected model.";
             b = menu.ContextMenu.AddButton("Triangle Mesh", () => OnAddCollider(window, CreateTriangle));
@@ -269,20 +267,6 @@ namespace FlaxEditor.SceneGraph.Actors
             spawner(collider);
         }
 
-        private void CreateCapsule(StaticModel actor, Spawner spawner, bool singleNode)
-        {
-            var collider = new CapsuleCollider
-            {
-                Transform = actor.Transform,
-                Position = actor.Box.Center,
-
-                // Size the capsule to best fit the actor
-                Radius = (float)actor.Sphere.Radius / Mathf.Max((float)actor.Scale.MaxValue, 0.0001f) * 0.707f,
-                Height = 100f,
-            };
-            spawner(collider);
-        }
-
         private void CreateConvex(StaticModel actor, Spawner spawner, bool singleNode)
         {
             CreateMeshCollider(actor, spawner, singleNode, CollisionDataType.ConvexMesh);

Source/Editor/SceneGraph/ISceneEditingContext.cs

@@ -1,9 +1,8 @@
 // Copyright (c) Wojciech Figat. All rights reserved.
 
+using System.Collections.Generic;
 using FlaxEditor.SceneGraph;
 using FlaxEditor.Viewport;
-using FlaxEngine;
-using System.Collections.Generic;
 
 namespace FlaxEditor
 {
@@ -40,23 +39,9 @@ namespace FlaxEditor
         /// </summary>
         void RenameSelection();
 
-        /// <summary>
-        /// Deletes selected objects.
-        /// </summary>
-        void DeleteSelection();
-
         /// <summary>
         /// Focuses selected objects.
         /// </summary>
         void FocusSelection();
-
-        /// <summary>
-        /// Spawns the specified actor to the game (with undo).
-        /// </summary>
-        /// <param name="actor">The actor.</param>
-        /// <param name="parent">The parent actor. Set null as default.</param>
-        /// <param name="orderInParent">The order under the parent to put the spawned actor.</param>
-        /// <param name="autoSelect">True if automatically select the spawned actor, otherwise false.</param>
-        void Spawn(Actor actor, Actor parent = null, int orderInParent = -1, bool autoSelect = true);
     }
 }

Source/Editor/SceneGraph/RootNode.cs

@@ -97,16 +97,13 @@ namespace FlaxEditor.SceneGraph
         /// <returns>Hit object or null if there is no intersection at all.</returns>
         public SceneGraphNode RayCast(ref Ray ray, ref Ray view, out Real distance, RayCastData.FlagTypes flags = RayCastData.FlagTypes.None)
         {
-            Profiler.BeginEvent("RayCastScene");
             var data = new RayCastData
             {
                 Ray = ray,
                 View = view,
                 Flags = flags
             };
-            var result = RayCast(ref data, out distance, out _);
-            Profiler.EndEvent();
-            return result;
+            return RayCast(ref data, out distance, out _);
         }
 
         /// <summary>
@@ -120,16 +117,13 @@ namespace FlaxEditor.SceneGraph
         /// <returns>Hit object or null if there is no intersection at all.</returns>
         public SceneGraphNode RayCast(ref Ray ray, ref Ray view, out Real distance, out Vector3 normal, RayCastData.FlagTypes flags = RayCastData.FlagTypes.None)
         {
-            Profiler.BeginEvent("RayCastScene");
             var data = new RayCastData
             {
                 Ray = ray,
                 View = view,
                 Flags = flags
             };
-            var result = RayCast(ref data, out distance, out normal);
-            Profiler.EndEvent();
-            return result;
+            return RayCast(ref data, out distance, out normal);
         }
 
         internal static Quaternion RaycastNormalRotation(ref Vector3 normal)
@@ -181,7 +175,7 @@ namespace FlaxEditor.SceneGraph
         public List<SceneGraphNode> Selection => SceneContext.Selection;
 
         /// <summary>
-        /// Gets the scene editing context.
+        /// Gets the list of selected scene graph nodes in the editor context.
         /// </summary>
         public abstract ISceneEditingContext SceneContext { get; }
     }

Source/Editor/Scripting/CodeEditor.h

@@ -62,11 +62,6 @@ API_ENUM(Namespace="FlaxEditor", Attributes="HideInEditor") enum class CodeEdito
     /// </summary>
     VS2022,
 
-    /// <summary>
-    /// Visual Studio 2026
-    /// </summary>
-    VS2026,
-
     /// <summary>
     /// Visual Studio Code
     /// </summary>

Source/Editor/Scripting/CodeEditors/VisualStudio/VisualStudioEditor.cpp

@@ -43,9 +43,6 @@ VisualStudioEditor::VisualStudioEditor(VisualStudioVersion version, const String
     case VisualStudioVersion::VS2022:
         _type = CodeEditorTypes::VS2022;
         break;
-    case VisualStudioVersion::VS2026:
-        _type = CodeEditorTypes::VS2026;
-        break;
     default: CRASH;
         break;
     }
@@ -73,9 +70,6 @@ void VisualStudioEditor::FindEditors(Array<CodeEditor*>* output)
         VisualStudioVersion version;
         switch (info.VersionMajor)
         {
-        case 18:
-            version = VisualStudioVersion::VS2026;
-            break;
         case 17:
             version = VisualStudioVersion::VS2022;
             break;

Source/Editor/Scripting/CodeEditors/VisualStudio/VisualStudioEditor.h

@@ -10,7 +10,7 @@
 /// <summary>
 /// Microsoft Visual Studio version types
 /// </summary>
-DECLARE_ENUM_9(VisualStudioVersion, VS2008, VS2010, VS2012, VS2013, VS2015, VS2017, VS2019, VS2022, VS2026);
+DECLARE_ENUM_8(VisualStudioVersion, VS2008, VS2010, VS2012, VS2013, VS2015, VS2017, VS2019, VS2022);
 
 /// <summary>
 /// Implementation of code editor utility that is using Microsoft Visual Studio.

Source/Editor/Surface/Archetypes/Animation.MultiBlend.cs

@@ -233,8 +233,6 @@ namespace FlaxEditor.Surface.Archetypes
         public BlendPointsEditor(Animation.MultiBlend node, bool is2D, float x, float y, float width, float height)
         : base(x, y, width, height)
         {
-            AutoFocus = true;
-
             _node = node;
             _is2D = is2D;
         }

Source/Editor/Surface/Archetypes/Animation.cs

@@ -810,7 +810,7 @@ namespace FlaxEditor.Surface.Archetypes
                 Create = (id, context, arch, groupArch) => new StateMachineState(id, context, arch, groupArch),
                 Title = "State",
                 Description = "The animation states machine state node",
-                Flags = NodeFlags.AnimGraph | NodeFlags.NoSpawnViaGUI,
+                Flags = NodeFlags.AnimGraph | NodeFlags.NoSpawnViaGUI | NodeFlags.NoSpawnViaPaste,
                 Size = new Float2(100, 0),
                 DefaultValues = new object[]
                 {

Source/Editor/Surface/Archetypes/Tools.cs

@@ -199,7 +199,7 @@ namespace FlaxEditor.Surface.Archetypes
             private Label _labelValue;
             private FloatValueBox _timeValue;
             private ColorValueBox _colorValue;
-            private const int MaxStops = 12;
+            private const int MaxStops = 8;
 
             /// <inheritdoc />
             public ColorGradientNode(uint id, VisjectSurfaceContext context, NodeArchetype nodeArch, GroupArchetype groupArch)
@@ -1386,11 +1386,10 @@ namespace FlaxEditor.Surface.Archetypes
                 Title = "Time",
                 Description = "Game time constant",
                 Flags = NodeFlags.MaterialGraph,
-                Size = new Float2(110, 40),
+                Size = new Float2(110, 20),
                 Elements = new[]
                 {
-                    NodeElementArchetype.Factory.Output(0, "Time", typeof(float), 0),
-                    NodeElementArchetype.Factory.Output(1, "Unscaled Time", typeof(float), 1),
+                    NodeElementArchetype.Factory.Output(0, "", typeof(float), 0),
                 }
             },
             new NodeArchetype
@@ -1507,11 +1506,7 @@ namespace FlaxEditor.Surface.Archetypes
                     0.95f,
                     Color.White,
 
-                    // Empty stops 2-11
-                    0.0f, Color.Black,
-                    0.0f, Color.Black,
-                    0.0f, Color.Black,
-                    0.0f, Color.Black,
+                    // Empty stops 2-7
                     0.0f, Color.Black,
                     0.0f, Color.Black,
                     0.0f, Color.Black,

Source/Editor/Surface/Elements/BoxValue.cs

@@ -64,7 +64,6 @@ namespace FlaxEditor.Surface.Elements
         {
             ParentNode = parentNode;
             Archetype = archetype;
-            AutoFocus = true;
 
             var back = Style.Current.TextBoxBackground;
             var grayOutFactor = 0.6f;

Source/Editor/Surface/NodeAlignmentType.cs

@@ -5,39 +5,39 @@ using FlaxEngine;
 namespace FlaxEditor.Surface
 {
 	/// <summary>
-	/// Node Alignment type.
+	/// Node Alignment type
 	/// </summary>
 	[HideInEditor]
 	public enum NodeAlignmentType
 	{
 		/// <summary>
-		/// Align nodes vertically to top, matching top-most node.
+		/// Align nodes vertically to top, matching top-most node
 		/// </summary>
 		Top,
 
 		/// <summary>
-		/// Align nodes vertically to middle, using average of all nodes.
+		/// Align nodes vertically to middle, using average of all nodes
 		/// </summary>
 		Middle,
 
 		/// <summary>
-		/// Align nodes vertically to bottom, matching bottom-most node.
+		/// Align nodes vertically to bottom, matching bottom-most node
 		/// </summary>
 		Bottom,
 
 		/// <summary>
-		/// Align nodes horizontally to left, matching left-most node.
+		/// Align nodes horizontally to left, matching left-most node
 		/// </summary>
 		Left,
 
 		/// <summary>
-		/// Align nodes horizontally to center, using average of all nodes.
+		/// Align nodes horizontally to center, using average of all nodes
 		/// </summary>
 		Center,
 
 		/// <summary>
-		/// Align nodes horizontally to right, matching right-most node.
+		/// Align nodes horizontally to right, matching right-most node
 		/// </summary>
 		Right,
 	}
-}
+}

Source/Editor/Surface/SurfaceControl.cs

@@ -59,7 +59,6 @@ namespace FlaxEditor.Surface
         protected SurfaceControl(VisjectSurfaceContext context, float width, float height)
         : base(0, 0, width, height)
         {
-            AutoFocus = true;
             ClipChildren = false;
 
             Surface = context.Surface;

Source/Editor/Surface/VisjectSurface.ContextMenu.cs

@@ -28,7 +28,7 @@ namespace FlaxEditor.Surface
             /// </summary>
             /// <param name="scriptType">The input type to process.</param>
             /// <param name="cache">Node groups cache that can be used for reusing groups for different nodes.</param>
-            /// <param name="version">The cache version number. Can be used to reject any cached data after.<see cref="NodesCache"/> rebuilt.</param>
+            /// <param name="version">The cache version number. Can be used to reject any cached data after <see cref="NodesCache"/> rebuilt.</param>
             public delegate void IterateType(ScriptType scriptType, Dictionary<KeyValuePair<string, ushort>, GroupArchetype> cache, int version);
 
             internal static readonly List<NodesCache> Caches = new List<NodesCache>(8);
@@ -412,7 +412,6 @@ namespace FlaxEditor.Surface
             _cmFormatNodesMenu.Enabled = CanEdit && HasNodesSelection;
 
             _cmFormatNodesConnectionButton = _cmFormatNodesMenu.ContextMenu.AddButton("Auto format", Editor.Instance.Options.Options.Input.NodesAutoFormat, () => { FormatGraph(SelectedNodes); });
-            _cmFormatNodesConnectionButton = _cmFormatNodesMenu.ContextMenu.AddButton("Straighten connections", Editor.Instance.Options.Options.Input.NodesStraightenConnections, () => { StraightenGraphConnections(SelectedNodes); });
 
             _cmFormatNodesMenu.ContextMenu.AddSeparator();
             _cmAlignNodesTopButton = _cmFormatNodesMenu.ContextMenu.AddButton("Align top", Editor.Instance.Options.Options.Input.NodesAlignTop, () => { AlignNodes(SelectedNodes, NodeAlignmentType.Top); });

Source/Editor/Surface/VisjectSurface.Formatting.cs

@@ -1,9 +1,9 @@
-using FlaxEditor.Surface.Elements;
-using FlaxEditor.Surface.Undo;
-using FlaxEngine;
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using FlaxEngine;
+using FlaxEditor.Surface.Elements;
+using FlaxEditor.Surface.Undo;
 
 namespace FlaxEditor.Surface
 {
@@ -14,26 +14,26 @@ namespace FlaxEditor.Surface
         private class NodeFormattingData
         {
             /// <summary>
-            /// Starting from 0 at the main nodes.
+            /// Starting from 0 at the main nodes
             /// </summary>
             public int Layer;
 
             /// <summary>
-            /// Position in the layer.
+            /// Position in the layer
             /// </summary>
             public int Offset;
 
             /// <summary>
-            /// How far the subtree needs to be moved additionally.
+            /// How far the subtree needs to be moved additionally
             /// </summary>
             public int SubtreeOffset;
         }
 
         /// <summary>
         /// Formats a graph where the nodes can be disjointed.
-        /// Uses the Sugiyama method.
+        /// Uses the Sugiyama method
         /// </summary>
-        /// <param name="nodes">List of nodes.</param>
+        /// <param name="nodes">List of nodes</param>
         public void FormatGraph(List<SurfaceNode> nodes)
         {
             if (nodes.Count <= 1)
@@ -78,9 +78,9 @@ namespace FlaxEditor.Surface
         }
 
         /// <summary>
-        /// Formats a graph where all nodes are connected.
+        /// Formats a graph where all nodes are connected
         /// </summary>
-        /// <param name="nodes">List of connected nodes.</param>
+        /// <param name="nodes">List of connected nodes</param>
         protected void FormatConnectedGraph(List<SurfaceNode> nodes)
         {
             if (nodes.Count <= 1)
@@ -160,71 +160,11 @@ namespace FlaxEditor.Surface
         }
 
         /// <summary>
-        /// Straightens every connection between nodes in <paramref name="nodes"/>.
+        /// Assigns a layer to every node
         /// </summary>
-        /// <param name="nodes">List of nodes.</param>
-        public void StraightenGraphConnections(List<SurfaceNode> nodes)
-        {
-            if (nodes.Count <= 1)
-                return;
-
-            List<MoveNodesAction> undoActions = new List<MoveNodesAction>();
-
-            // Only process nodes that have any connection
-            List<SurfaceNode> connectedNodes = nodes.Where(n => n.GetBoxes().Any(b => b.HasAnyConnection)).ToList();
-
-            if (connectedNodes.Count == 0)
-                return;
-
-            for (int i = 0; i < connectedNodes.Count - 1; i++)
-            {
-                SurfaceNode nodeA = connectedNodes[i];
-                List<Box> connectedOutputBoxes = nodeA.GetBoxes().Where(b => b.IsOutput && b.HasAnyConnection).ToList();
-
-                for (int j = 0; j < connectedOutputBoxes.Count; j++)
-                {
-                    Box boxA = connectedOutputBoxes[j];
-
-                    for (int b = 0; b < boxA.Connections.Count; b++)
-                    {
-                        Box boxB = boxA.Connections[b];
-
-                        // Ensure the other node is selected
-                        if (!connectedNodes.Contains(boxB.ParentNode))
-                            continue;
-
-                        // Node with no outgoing connections reached. Advance to next node in list
-                        if (boxA == null || boxB == null)
-                            continue;
-
-                        SurfaceNode nodeB = boxB.ParentNode;
-
-                        // Calculate the Y offset needed for nodeB to align boxB's Y to boxA's Y
-                        float boxASurfaceY = boxA.PointToParent(this, Float2.Zero).Y;
-                        float boxBSurfaceY = boxB.PointToParent(this, Float2.Zero).Y;
-                        float deltaY = (boxASurfaceY - boxBSurfaceY) / ViewScale;
-                        Float2 delta = new Float2(0f, deltaY);
-
-                        nodeB.Location += delta;
-
-                        if (Undo != null)
-                            undoActions.Add(new MoveNodesAction(Context, new[] { nodeB.ID }, delta));
-                    }
-                }
-            }
-
-            if (undoActions.Count > 0)
-                Undo?.AddAction(new MultiUndoAction(undoActions, "Straightned "));
-
-            MarkAsEdited(false);
-        }
-
-        /// <summary>
-        /// Assigns a layer to every node.
-        /// </summary>
-        /// <param name="nodeData">The exta node data.</param>
-        /// <param name="endNodes">The end nodes.</param>
-        /// <returns>The number of the maximum layer.</returns>
+        /// <param name="nodeData">The exta node data</param>
+        /// <param name="endNodes">The end nodes</param>
+        /// <returns>The number of the maximum layer</returns>
         private int SetLayers(Dictionary<SurfaceNode, NodeFormattingData> nodeData, List<SurfaceNode> endNodes)
         {
             // Longest path layering
@@ -261,12 +201,12 @@ namespace FlaxEditor.Surface
 
 
         /// <summary>
-        /// Sets the node offsets.
+        /// Sets the node offsets
         /// </summary>
-        /// <param name="nodeData">The exta node data.</param>
-        /// <param name="endNodes">The end nodes.</param>
-        /// <param name="maxLayer">The number of the maximum layer.</param>
-        /// <returns>The number of the maximum offset.</returns>
+        /// <param name="nodeData">The exta node data</param>
+        /// <param name="endNodes">The end nodes</param>
+        /// <param name="maxLayer">The number of the maximum layer</param>
+        /// <returns>The number of the maximum offset</returns>
         private int SetOffsets(Dictionary<SurfaceNode, NodeFormattingData> nodeData, List<SurfaceNode> endNodes, int maxLayer)
         {
             int maxOffset = 0;
@@ -347,10 +287,10 @@ namespace FlaxEditor.Surface
         /// Align given nodes on a graph using the given alignment type.
         /// Ignores any potential overlap.
         /// </summary>
-        /// <param name="nodes">List of nodes.</param>
-        /// <param name="alignmentType">Alignemnt type.</param>
+        /// <param name="nodes">List of nodes</param>
+        /// <param name="alignmentType">Alignemnt type</param>
         public void AlignNodes(List<SurfaceNode> nodes, NodeAlignmentType alignmentType)
-        {  
+        {
             if(nodes.Count <= 1)
                 return;
 
@@ -388,8 +328,8 @@ namespace FlaxEditor.Surface
         /// <summary>
         /// Distribute the given nodes as equally as possible inside the bounding box, if no fit can be done it will use a default pad of 10 pixels between nodes.
         /// </summary>
-        /// <param name="nodes">List of nodes.</param>
-        /// <param name="vertically">If false will be done horizontally, if true will be done vertically.</param>
+        /// <param name="nodes">List of nodes</param>
+        /// <param name="vertically">If false will be done horizontally, if true will be done vertically</param>
         public void DistributeNodes(List<SurfaceNode> nodes, bool vertically)
         {
             if(nodes.Count <= 1)

Source/Editor/Surface/VisjectSurface.Input.cs

@@ -120,8 +120,6 @@ namespace FlaxEditor.Surface
 
         private void UpdateSelectionRectangle()
         {
-            if (Root == null)
-                return;
             var p1 = _rootControl.PointFromParent(ref _leftMouseDownPos);
             var p2 = _rootControl.PointFromParent(ref _mousePos);
             var selectionRect = Rectangle.FromPoints(p1, p2);

Source/Editor/Surface/VisjectSurface.cs

@@ -416,7 +416,6 @@ namespace FlaxEditor.Surface
                 new InputActionsContainer.Binding(options => options.Cut, Cut),
                 new InputActionsContainer.Binding(options => options.Duplicate, Duplicate),
                 new InputActionsContainer.Binding(options => options.NodesAutoFormat, () => { FormatGraph(SelectedNodes); }),
-                new InputActionsContainer.Binding(options => options.NodesStraightenConnections, () => { StraightenGraphConnections(SelectedNodes); }),
                 new InputActionsContainer.Binding(options => options.NodesAlignTop, () => { AlignNodes(SelectedNodes, NodeAlignmentType.Top); }),
                 new InputActionsContainer.Binding(options => options.NodesAlignMiddle, () => { AlignNodes(SelectedNodes, NodeAlignmentType.Middle); }),
                 new InputActionsContainer.Binding(options => options.NodesAlignBottom, () => { AlignNodes(SelectedNodes, NodeAlignmentType.Bottom); }),
@@ -543,12 +542,11 @@ namespace FlaxEditor.Surface
                 nodes.Add(context);
                 context = context.Parent;
             }
-            float margin = 1;
             float x = NavigationBar.DefaultButtonsMargin;
-            float h = toolStrip.ItemsHeight - 2 * margin;
+            float h = toolStrip.ItemsHeight - 2 * ToolStrip.DefaultMarginV;
             for (int i = nodes.Count - 1; i >= 0; i--)
             {
-                var button = new VisjectContextNavigationButton(this, nodes[i].Context, x, margin, h);
+                var button = new VisjectContextNavigationButton(this, nodes[i].Context, x, ToolStrip.DefaultMarginV, h);
                 button.PerformLayout();
                 x += button.Width + NavigationBar.DefaultButtonsMargin;
                 navigationBar.AddChild(button);

Source/Editor/Utilities/MemberComparison.cs

@@ -61,7 +61,6 @@ namespace FlaxEditor.Utilities
         /// <param name="value">The value.</param>
         public void SetMemberValue(object instance, object value)
         {
-            var originalInstance = instance;
             var finalMember = MemberPath.GetLastMember(ref instance);
 
             var type = finalMember.Type;
@@ -93,12 +92,6 @@ namespace FlaxEditor.Utilities
             }
 
             finalMember.SetValue(instance, value);
-
-            if (instance != originalInstance && finalMember.Index != null)
-            {
-                // Set collection back to the parent object (in case of properties that always return a new object like 'Spline.SplineKeyframes')
-                finalMember.Member.SetValue(originalInstance, instance);
-            }
         }
 
         /// <inheritdoc />

Source/Editor/Utilities/Utils.cs

@@ -1571,19 +1571,5 @@ namespace FlaxEditor.Utilities
                 _ => throw new ArgumentOutOfRangeException()
             };
         }
-
-        internal static bool HideSingleTabWindowTabBars()
-        {
-#if PLATFORM_SDL
-            // We should not hide the tab bars if tab handle is the only way to dock the window
-            bool clientSideDecorations = UseCustomWindowDecorations(false);
-            bool draggableDecorations = clientSideDecorations || Platform.SupportsNativeDecorationDragging;
-            return draggableDecorations && Editor.Instance.Options.Options.Interface.HideSingleTabWindowTabBars;
-#elif PLATFORM_WINDOWS
-            return Editor.Instance.Options.Options.Interface.HideSingleTabWindowTabBars;
-#else
-            return false;
-#endif
-        }
     }
 }

Source/Editor/Viewport/MainEditorGizmoViewport.cs

@@ -340,13 +340,6 @@ namespace FlaxEditor.Viewport
         {
             _debugDrawData.Clear();
 
-            if (task is SceneRenderTask sceneRenderTask)
-            {
-                // Sync debug view to avoid lag on culling/LODing
-                var view = sceneRenderTask.View;
-                DebugDraw.SetView(ref view);
-            }
-
             // Collect selected objects debug shapes and visuals
             var selectedParents = TransformGizmo.SelectedParents;
             if (selectedParents.Count > 0)
@@ -381,7 +374,14 @@ namespace FlaxEditor.Viewport
             // Draw selected objects debug shapes and visuals
             if (DrawDebugDraw && (renderContext.View.Flags & ViewFlags.DebugDraw) == ViewFlags.DebugDraw)
             {
-                _debugDrawData.DrawActors(true);
+                unsafe
+                {
+                    fixed (IntPtr* actors = _debugDrawData.ActorsPtrs)
+                    {
+                        DebugDraw.DrawActors(new IntPtr(actors), _debugDrawData.ActorsCount, true);
+                    }
+                }
+
                 DebugDraw.Draw(ref renderContext, target.View(), targetDepth.View(), true);
             }
         }

Source/Editor/Viewport/PrefabWindowViewport.cs

@@ -243,12 +243,7 @@ namespace FlaxEditor.Viewport
                     _tempDebugDrawContext = DebugDraw.AllocateContext();
                 DebugDraw.SetContext(_tempDebugDrawContext);
                 DebugDraw.UpdateContext(_tempDebugDrawContext, 1.0f);
-                if (task is SceneRenderTask sceneRenderTask)
-                {
-                    // Sync debug view to avoid lag on culling/LODing
-                    var view = sceneRenderTask.View;
-                    DebugDraw.SetView(ref view);
-                }
+
                 for (int i = 0; i < selectedParents.Count; i++)
                 {
                     if (selectedParents[i].IsActiveInHierarchy)
@@ -648,7 +643,14 @@ namespace FlaxEditor.Viewport
                 if (selectedParents[i].IsActiveInHierarchy)
                     selectedParents[i].OnDebugDraw(_debugDrawData);
             }
-            _debugDrawData.DrawActors();
+
+            unsafe
+            {
+                fixed (IntPtr* actors = _debugDrawData.ActorsPtrs)
+                {
+                    DebugDraw.DrawActors(new IntPtr(actors), _debugDrawData.ActorsCount, false);
+                }
+            }
 
             // Debug draw all actors in prefab and collect actors
             var view = Task.View;
@@ -668,7 +670,10 @@ namespace FlaxEditor.Viewport
             if ((view.Flags & ViewFlags.PhysicsDebug) != 0 || view.Mode == ViewMode.PhysicsColliders)
             {
                 foreach (var actor in _debugDrawActors)
-                    DebugDraw.DrawDebugPhysics(actor, renderContext.View);
+                {
+                    if (actor is Collider c && c.IsActiveInHierarchy)
+                        DebugDraw.DrawColliderDebugPhysics(c, renderContext.View);
+                }
             }
 
             // Draw lights debug

Source/Editor/Viewport/Previews/AssetPreview.cs

@@ -264,7 +264,6 @@ namespace FlaxEditor.Viewport.Previews
             {
                 DebugDraw.SetContext(_debugDrawContext);
                 DebugDraw.UpdateContext(_debugDrawContext, 1.0f / Mathf.Max(Engine.FramesPerSecond, 1));
-                DebugDraw.SetView(ref renderContext.View);
                 CustomDebugDraw?.Invoke(context, ref renderContext);
                 OnDebugDraw(context, ref renderContext);
                 DebugDraw.Draw(ref renderContext, target.View(), targetDepth.View(), true);