port from perforce

intromat/.editorconfig

@@ -0,0 +1,7 @@
+[*.cs]
+
+# IDE0058: Expression value is never used
+dotnet_diagnostic.IDE0058.severity = none
+csharp_style_var_elsewhere = true;
+csharp_style_var_for_built_in_types = true;
+csharp_style_var_when_type_is_apparent = true;

intromat/Intromat.DXExt/Intromat.DXExt.il

@@ -0,0 +1,107 @@
+.assembly extern mscorlib {}
+
+.assembly extern SharpDX 
+{
+	.publickeytoken = (b4 dc f0 f3 5e 55 21 f1)
+	.ver 4:2:0:0 
+}
+
+.assembly Intromat.DXExt
+{
+	.hash algorithm 0x00008004
+    .ver 1:0:0:0
+}
+
+.module Intromat.DXExt.dll
+
+.class public auto ansi beforefieldinit
+  Intromat.DXExt.GraphicsAnalysis
+    extends [SharpDX]SharpDX.ComObject
+{
+  .custom instance void [mscorlib]System.Runtime.InteropServices.GuidAttribute::.ctor(string)
+    = (
+      01 00 24 39 66 32 35 31 35 31 34 2d 39 64 34 64 // ..$9f251514-9d4d
+      2d 34 39 30 32 2d 39 64 36 30 2d 31 38 39 38 38 // -4902-9d60-18988
+      61 62 37 64 34 62 35 00 00                      // ab7d4b5..
+    )
+
+  .method public hidebysig specialname rtspecialname instance void
+    .ctor(
+      native int nativePtr
+    ) cil managed
+  {
+    .maxstack 8
+
+    // [17 9 - 17 24]
+    IL_0000: ldarg.0      // this
+    IL_0001: ldarg.1      // nativePtr
+    IL_0002: call         instance void [SharpDX]SharpDX.ComObject::.ctor(native int)
+    IL_0007: ret
+
+  } // end of method GraphicsAnalysis::.ctor
+
+  .method public hidebysig static specialname class Intromat.DXExt.GraphicsAnalysis
+    op_Explicit(
+      native int nativePtr
+    ) cil managed
+  {
+    .maxstack 8
+
+    // [21 80 - 21 177]
+    IL_0000: ldarg.0      // nativePtr
+    IL_0001: ldsfld       native int [mscorlib]System.IntPtr::Zero
+    IL_0006: call         bool [mscorlib]System.IntPtr::op_Equality(native int, native int)
+    IL_000b: brtrue.s     IL_0014
+
+    IL_000d: ldarg.0      // nativePtr
+    IL_000e: newobj       instance void Intromat.DXExt.GraphicsAnalysis::.ctor(native int)
+    IL_0013: ret
+    IL_0014: ldnull
+    IL_0015: ret
+
+  } // end of method GraphicsAnalysis::op_Explicit
+
+  .method public hidebysig instance int32
+    BeginCapture() cil managed
+  {
+    .maxstack 8
+
+    // [67 37 - 67 166]
+    IL_0000: ldarg.0      // this
+    IL_0001: ldfld        void* [SharpDX]SharpDX.CppObject::_nativePointer
+    IL_0006: ldarg.0      // this
+    IL_0007: ldfld        void* [SharpDX]SharpDX.CppObject::_nativePointer
+    IL_000c: ldind.i
+    IL_000d: ldc.i4.3
+    IL_000e: conv.i
+    IL_000f: sizeof       void*
+    IL_0015: mul
+    IL_0016: add
+    IL_0017: ldind.i
+    IL_0018: calli        int32 (void*)
+    IL_001d: ret
+
+  } // end of method GraphicsAnalysis::BeginCapture
+
+  .method public hidebysig instance int32
+    EndCapture() cil managed
+  {
+    .maxstack 8
+
+    // [67 37 - 67 166]
+    IL_0000: ldarg.0      // this
+    IL_0001: ldfld        void* [SharpDX]SharpDX.CppObject::_nativePointer
+    IL_0006: ldarg.0      // this
+    IL_0007: ldfld        void* [SharpDX]SharpDX.CppObject::_nativePointer
+    IL_000c: ldind.i
+    IL_000d: ldc.i4.4
+    IL_000e: conv.i
+    IL_000f: sizeof       void*
+    IL_0015: mul
+    IL_0016: add
+    IL_0017: ldind.i
+    IL_0018: calli        int32 (void*)
+    IL_001d: ret
+
+  } // end of method GraphicsAnalysis::EndCapture
+} // end of class Intromat.DXExt.GraphicsAnalysis

intromat/Intromat.sln

@@ -0,0 +1,48 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.5.33516.290
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NodeNetwork", "NodeNetwork\NodeNetwork.csproj", "{96E1761E-AE02-48E9-95E8-4A3B2FC32025}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "NodeNetworkToolkit", "NodeNetworkToolkit\NodeNetworkToolkit.csproj", "{391D0670-646F-4633-9E86-E9A966F61953}"
+	ProjectSection(ProjectDependencies) = postProject
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025} = {96E1761E-AE02-48E9-95E8-4A3B2FC32025}
+	EndProjectSection
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Intromat", "Intromat\Intromat.csproj", "{274A545D-8943-44F7-AF51-772904AE10A9}"
+	ProjectSection(ProjectDependencies) = postProject
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025} = {96E1761E-AE02-48E9-95E8-4A3B2FC32025}
+	EndProjectSection
+EndProject
+Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution Items", "{77ABA972-073E-4010-BC7B-9951DC38CFB6}"
+	ProjectSection(SolutionItems) = preProject
+		.editorconfig = .editorconfig
+	EndProjectSection
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{96E1761E-AE02-48E9-95E8-4A3B2FC32025}.Release|Any CPU.Build.0 = Release|Any CPU
+		{391D0670-646F-4633-9E86-E9A966F61953}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{391D0670-646F-4633-9E86-E9A966F61953}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{391D0670-646F-4633-9E86-E9A966F61953}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{391D0670-646F-4633-9E86-E9A966F61953}.Release|Any CPU.Build.0 = Release|Any CPU
+		{274A545D-8943-44F7-AF51-772904AE10A9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{274A545D-8943-44F7-AF51-772904AE10A9}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{274A545D-8943-44F7-AF51-772904AE10A9}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{274A545D-8943-44F7-AF51-772904AE10A9}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {923D42E4-533A-4A65-BB3E-A7CCC2585386}
+	EndGlobalSection
+EndGlobal

intromat/Intromat.sln.DotSettings

@@ -0,0 +1,13 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/CodeFormatting/CSharpFormat/WRAP_CHAINED_METHOD_CALLS/@EntryValue">CHOP_ALWAYS</s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpKeepExistingMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpPlaceEmbeddedOnSameLineMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ECSharpUseContinuousIndentInsideBracesMigration/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EMigrateBlankLinesAroundFieldToBlankLinesAroundProperty/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Anchorable/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=dxgi/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Grayscale/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=hwnd/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=ints/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=rasterizer/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Templated/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

intromat/Intromat.sln.DotSettings.user

@@ -0,0 +1,7 @@
+<wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/Environment/AssemblyExplorer/XmlDocument/@EntryValue">&lt;AssemblyExplorer&gt;&#xD;
+  &lt;Assembly Path="C:\Users\frank\.nuget\packages\sharpdx.d3dcompiler\4.2.0\lib\netstandard1.1\SharpDX.D3DCompiler.dll" /&gt;&#xD;
+&lt;/AssemblyExplorer&gt;</s:String>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Akavache/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Intromat/@EntryIndexedValue">True</s:Boolean>
+	<s:Boolean x:Key="/Default/UserDictionary/Words/=Ungroup/@EntryIndexedValue">True</s:Boolean></wpf:ResourceDictionary>

intromat/Intromat/Actions/Hierarchy/CreateFileAction.cs

@@ -0,0 +1,35 @@
+using System;
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class CreateFileAction : IUndoItem
+    {
+        private readonly FileViewModel _file;
+        private readonly FolderViewModel _parent;
+
+        public CreateFileAction(MainViewModel mainVm, FileViewModel file, ModuleViewModel module, FolderViewModel parent)
+        {
+            _file = file;
+            _parent = parent;
+            File = module;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Files.Add(_file);
+            _parent.IsExpanded = true;
+            _file.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Files.Remove(_file);
+            _parent.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Hierarchy/CreateFolderAction.cs

@@ -0,0 +1,34 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class CreateFolderAction : IUndoItem
+    {
+        private readonly FolderViewModel _folder;
+        private readonly FolderViewModel _parent;
+
+        public CreateFolderAction(string name, ModuleViewModel module, FolderViewModel parent)
+        {
+            _folder = new FolderViewModel(module, parent, name);
+            _parent = parent;
+            File = module;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Folders.Add(_folder);
+            _parent.IsExpanded = true;
+            _folder.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Folders.Remove(_folder);
+            _parent.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Hierarchy/CreateModuleAction.cs

@@ -0,0 +1,34 @@
+using System.IO;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class CreateModuleAction : IUndoItem
+    {
+        private readonly ModuleViewModel _module;
+        private readonly ProjectViewModel _parent;
+
+        public CreateModuleAction(string name, ProjectViewModel parent)
+        {
+            var modulePath = Path.GetFullPath(Path.Combine(Path.GetDirectoryName(parent.FullPath)!, name, $"{name}.imodule"));
+            _module = new ModuleViewModel(parent, name, modulePath);
+            File = _parent = parent;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Modules.Add(_module);
+            _parent.IsExpanded = true;
+            _module.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Modules.Remove(_module);
+            _parent.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Hierarchy/DeleteFileAction.cs

@@ -0,0 +1,33 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class DeleteFileAction : IUndoItem
+    {
+        private readonly FileViewModel _file;
+        private readonly FolderViewModel _parent;
+
+        public DeleteFileAction(FileViewModel file)
+        {
+            _parent = file.Parent;
+            File = _parent.Module;
+            _file = file;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Files.Remove(_file);
+            _parent.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Files.Add(_file);
+            _file.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Hierarchy/DeleteFolderAction.cs

@@ -0,0 +1,33 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class DeleteFolderAction : IUndoItem
+    {
+        private readonly FolderViewModel _folder;
+        private readonly FolderViewModel _parent;
+
+        public DeleteFolderAction(FolderViewModel folder)
+        {
+            File = folder.Module;
+            _parent = (FolderViewModel)folder.Parent;
+            _folder = folder;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Folders.Remove(_folder);
+            _parent.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Folders.Add(_folder);
+            _folder.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Hierarchy/DeleteModuleAction.cs

@@ -0,0 +1,31 @@
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+
+namespace Intromat.Actions.Hierarchy
+{
+    public class DeleteModuleAction : IUndoItem
+    {
+        private readonly ModuleViewModel _module;
+        private readonly ProjectViewModel _parent;
+
+        public DeleteModuleAction(ModuleViewModel module)
+        {
+            File = _parent = (ProjectViewModel)module.Parent;
+            _module = module;
+        }
+
+        public IFile File { get; }
+
+        public void Redo()
+        {
+            _parent.Modules.Remove(_module);
+            _parent.IsSelected = true;
+        }
+
+        public void Undo()
+        {
+            _parent.Modules.Add(_module);
+            _module.IsSelected = true;
+        }
+    }
+}

intromat/Intromat/Actions/Network/AddConnectionAction.cs

@@ -0,0 +1,32 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Actions.Network
+{
+    public class AddConnectionAction : IUndoItem
+    {
+        private readonly CodeGenNetworkViewModel _network;
+        private readonly ConnectionViewModel _connection;
+
+        public AddConnectionAction(DocumentViewModel document, CodeGenNetworkViewModel network, ConnectionViewModel connection)
+        {
+            File = document;
+            _network = network;
+            _connection = connection;
+        }
+
+        public void Redo()
+        {
+            _network.Connections.Add(_connection);
+        }
+
+        public void Undo()
+        {
+            _network.Connections.Remove(_connection);
+        }
+
+        public IFile File { get; }
+    }
+}

intromat/Intromat/Actions/Network/AddNodeAction.cs

@@ -0,0 +1,32 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Actions.Network
+{
+    public class AddNodeAction : IUndoItem
+    {
+        private readonly CodeGenNetworkViewModel _network;
+        private readonly NodeViewModel _node;
+
+        public AddNodeAction(DocumentViewModel document, CodeGenNetworkViewModel network, NodeViewModel node)
+        {
+            File = document;
+            _network = network;
+            _node = node;
+        }
+
+        public void Redo()
+        {
+            _network.Nodes.Add(_node);
+        }
+
+        public void Undo()
+        {
+            _network.Nodes.Remove(_node);
+        }
+
+        public IFile File { get; }
+    }
+}

intromat/Intromat/Actions/Network/DeleteConnectionAction.cs

@@ -0,0 +1,32 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Actions.Network
+{
+    public class DeleteConnectionAction : IUndoItem
+    {
+        private readonly CodeGenNetworkViewModel _network;
+        private readonly ConnectionViewModel _connection;
+
+        public DeleteConnectionAction(DocumentViewModel document, CodeGenNetworkViewModel network, ConnectionViewModel connection)
+        {
+            File = document;
+            _network = network;
+            _connection = connection;
+        }
+
+        public void Redo()
+        {
+            _network.Connections.Remove(_connection);
+        }
+
+        public void Undo()
+        {
+            _network.Connections.Add(_connection);
+        }
+
+        public IFile File { get; }
+    }
+}

intromat/Intromat/Actions/Network/DeleteNodeAction.cs

@@ -0,0 +1,32 @@
+using DynamicData;
+using Intromat.Interfaces;
+using Intromat.ViewModels;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Actions.Network
+{
+    public class DeleteNodeAction : IUndoItem
+    {
+        private readonly CodeGenNetworkViewModel _network;
+        private readonly NodeViewModel _node;
+
+        public DeleteNodeAction(DocumentViewModel document, CodeGenNetworkViewModel network, NodeViewModel node)
+        {
+            File = document;
+            _network = network;
+            _node = node;
+        }
+
+        public void Redo()
+        {
+            _network.Nodes.Remove(_node);
+        }
+
+        public void Undo()
+        {
+            _network.Nodes.Add(_node);
+        }
+
+        public IFile File { get; }
+    }
+}

intromat/Intromat/AkavacheSuspensionDriver.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Reactive;
+using Akavache;
+using ReactiveUI;
+
+namespace Intromat
+{
+    public class AkavacheSuspensionDriver<TAppState> : ISuspensionDriver where TAppState : class
+    {
+        private const string AppStateKey = "appState";
+
+        public AkavacheSuspensionDriver()
+        {
+            BlobCache.ApplicationName = "Your Application Name";
+        }
+
+        public IObservable<Unit> InvalidateState()
+        {
+            return BlobCache.UserAccount.InvalidateObject<TAppState>(AppStateKey);
+        }
+
+        public IObservable<object> LoadState()
+        {
+            return BlobCache.UserAccount.GetObject<TAppState>(AppStateKey)!;
+        }
+
+        public IObservable<Unit> SaveState(object state)
+        {
+            return BlobCache.UserAccount.InsertObject(AppStateKey, (TAppState)state);
+        }
+    }
+}

intromat/Intromat/App.xaml

@@ -0,0 +1,18 @@
+<Application x:Class="Intromat.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
+    <Application.Resources>
+        <ResourceDictionary>
+            <ResourceDictionary.MergedDictionaries>
+                <ResourceDictionary Source="Themes/ColorfulDarkTheme.xaml" />
+                <ResourceDictionary Source="Themes/CodeGenNodeView.xaml" />
+                <ResourceDictionary Source="Themes/CodeGenNodeInputView.xaml" />
+                <ResourceDictionary Source="Themes/CodeGenNodeOutputView.xaml" />
+                <ResourceDictionary Source="Themes/Resources.xaml" />
+                <ResourceDictionary Source="Themes/ExtendedWpfToolkit.xaml" />
+                <ResourceDictionary Source="Themes/Icons.xaml" />
+                <ResourceDictionary Source="Themes/EditorStyles.xaml" />
+            </ResourceDictionary.MergedDictionaries>
+        </ResourceDictionary>
+    </Application.Resources>
+</Application>

intromat/Intromat/App.xaml.cs

@@ -0,0 +1,51 @@
+using System.Runtime.CompilerServices;
+using System.Windows;
+using Intromat.Graphics;
+using Intromat.ViewModels;
+using Intromat.Views;
+using NodeNetwork;
+using NodeNetwork.Toolkit;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat
+{
+    public partial class App : Application
+    {
+        public AutoSuspendHelper SuspendHelper { get; }
+
+        public App()
+        {
+            // Initialize the suspension driver after AutoSuspendHelper.
+            SuspendHelper = new AutoSuspendHelper(this);
+            RxApp.SuspensionHost.CreateNewAppState = () => new AppStateViewModel();
+            RxApp.SuspensionHost.SetupDefaultSuspendResume(new AkavacheSuspensionDriver<AppStateViewModel>());
+        }
+
+        protected override void OnStartup(StartupEventArgs e)
+        {
+            var splashScreen = new SplashScreenWindow();
+            MainWindow = splashScreen;
+            splashScreen.Show();
+            
+            var dxHost = new DxHost();
+            Locator.CurrentMutable.RegisterConstant(dxHost);
+            var mainWindow = new MainWindow { Visibility = Visibility.Collapsed };
+
+            base.OnStartup(e);
+
+            foreach (var assemblyType in typeof(NNViewRegistrar).Assembly.GetTypes())
+                RuntimeHelpers.RunClassConstructor(assemblyType.TypeHandle);
+            foreach (var assemblyType in typeof(NodeTemplate).Assembly.GetTypes())
+                RuntimeHelpers.RunClassConstructor(assemblyType.TypeHandle);
+            foreach (var assemblyType in GetType().Assembly.GetTypes())
+                RuntimeHelpers.RunClassConstructor(assemblyType.TypeHandle);
+
+            NNViewRegistrar.RegisterSplat();
+            MainWindow = mainWindow;
+            mainWindow.Show();
+            splashScreen.Close();
+            mainWindow.Visibility = Visibility.Visible;
+        }
+    }
+}

intromat/Intromat/Controls/SourceEditor.cs

@@ -0,0 +1,66 @@
+using System;
+using System.ComponentModel;
+using System.Windows;
+using ICSharpCode.AvalonEdit;
+
+namespace Intromat.Controls
+{
+    public class SourceEditor : TextEditor, INotifyPropertyChanged
+    {
+        /// <summary>
+        ///     The bindable text property dependency property
+        /// </summary>
+        public static readonly DependencyProperty TextProperty = DependencyProperty.Register("Text", typeof(string), typeof(SourceEditor), new FrameworkPropertyMetadata
+        {
+            DefaultValue = default(string),
+            BindsTwoWayByDefault = true,
+            PropertyChangedCallback = OnDependencyPropertyChanged
+        });
+
+        /// <summary>
+        ///     A bindable Text property
+        /// </summary>
+        public new string Text
+        {
+            get => (string)GetValue(TextProperty);
+            set
+            {
+                SetValue(TextProperty, value);
+                RaisePropertyChanged("Text");
+            }
+        }
+
+        public event PropertyChangedEventHandler? PropertyChanged;
+
+        protected static void OnDependencyPropertyChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
+        {
+            var target = (SourceEditor)obj;
+            if (target.Document == null)
+                return;
+
+            var caretOffset = target.CaretOffset;
+            var newValue = args.NewValue ?? "";
+
+            target.Document.Text = (string)newValue;
+            target.CaretOffset = Math.Min(caretOffset, target.Document.Text.Length);
+        }
+
+        protected override void OnTextChanged(EventArgs e)
+        {
+            if (Document != null)
+                Text = Document.Text;
+
+            base.OnTextChanged(e);
+        }
+
+        /// <summary>
+        ///     Raises a property changed event
+        /// </summary>
+        /// <param name="property">The name of the property that updates</param>
+        public void RaisePropertyChanged(string property)
+        {
+            if (PropertyChanged != null)
+                PropertyChanged(this, new PropertyChangedEventArgs(property));
+        }
+    }
+}

intromat/Intromat/Converters/WidthToMarginConverter.cs

@@ -0,0 +1,23 @@
+using System;
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace Intromat.Converters
+{
+    public class WidthToMarginConverter : IValueConverter
+    {
+        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            var width = (double)value;
+            return Side ? new Thickness(-width, 0, 0, 0) : new Thickness(0, 0, -width, 0);
+        }
+
+        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        {
+            throw new NotImplementedException();
+        }
+
+        public bool Side { get; set; }
+    }
+}

intromat/Intromat/GlobalSuppressions.cs

@@ -0,0 +1,8 @@
+// This file is used by Code Analysis to maintain SuppressMessage
+// attributes that are applied to this project.
+// Project-level suppressions either have no target or are given
+// a specific target and scoped to a namespace, type, member, etc.
+
+using System.Diagnostics.CodeAnalysis;
+
+[assembly: SuppressMessage("Interoperability", "CA1416:Validate platform compatibility", Justification = "<Pending>")]

intromat/Intromat/Graphics/DebugInterface.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Reflection;
+using System.Runtime.InteropServices;
+using Intromat.DXExt;
+using SharpDX;
+
+namespace Intromat.Graphics
+{
+    internal static class DebugInterface
+    {
+        [Flags]
+        public enum LoadLibraryFlags : uint
+        {
+            LoadLibrarySearchSystem32 = 0x00000800
+        }
+
+        private static readonly GetDebugInterface? getDebugInterface;
+
+        static DebugInterface()
+        {
+            var moduleHandle = LoadLibraryEx("dxgi.dll", IntPtr.Zero, LoadLibraryFlags.LoadLibrarySearchSystem32);
+            if (moduleHandle != IntPtr.Zero)
+            {
+                var procedureHandle = GetProcAddress(moduleHandle, "DXGIGetDebugInterface1");
+                if (procedureHandle != IntPtr.Zero)
+                    getDebugInterface = (GetDebugInterface)Marshal.GetDelegateForFunctionPointer(procedureHandle, typeof(GetDebugInterface));
+            }
+        }
+
+        public static GraphicsAnalysis? TryCreateGraphicsAnalysis()
+        {
+            if (getDebugInterface == null)
+                return null;
+
+            var guid = typeof(GraphicsAnalysis).GetTypeInfo().GUID;
+            var result = getDebugInterface(0, ref guid, out var comPtr);
+            if (result.Failure)
+                return null;
+
+            return comPtr != IntPtr.Zero ? (GraphicsAnalysis)comPtr : null;
+        }
+
+        [DllImport("kernel32.dll", SetLastError = true)]
+        public static extern IntPtr LoadLibraryEx(string lpFileName, IntPtr hReservedNull, LoadLibraryFlags dwFlags);
+
+        [DllImport("kernel32.dll")]
+        public static extern IntPtr GetProcAddress(IntPtr hModule, string procName);
+
+        [UnmanagedFunctionPointer(CallingConvention.Winapi)]
+        private delegate Result GetDebugInterface(uint flags, ref Guid guid, out IntPtr result);
+    }
+}

intromat/Intromat/Graphics/DxHost.cs

@@ -0,0 +1,134 @@
+using System;
+using System.Collections.Concurrent;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+using System.Threading;
+using System.Windows;
+using System.Windows.Threading;
+using Intromat.DXExt;
+using Intromat.Pipelines;
+using SharpDX.Direct3D;
+using SharpDX.Direct3D9;
+using Splat;
+using D3D11 = SharpDX.Direct3D11;
+
+namespace Intromat.Graphics
+{
+    public class DxHost
+    {
+        public delegate void RenderDelegate(D3D11.Device device, D3D11.DeviceContext deviceContext);
+
+        public readonly ConcurrentQueue<RenderDelegate> _actionQueue;
+        public readonly D3D11.Device Device;
+        private readonly Thread _renderThread;
+        private IntPtr _renderWindowHandle;
+        public DeviceEx? D3D9Device;
+        public Dispatcher? RenderDispatcher;
+        public Dispatcher? MainDispatcher;
+        private readonly ManualResetEvent _renderThreadStarted = new(false);
+        public readonly D3D11.UserDefinedAnnotation? _annotation;
+        public readonly GraphicsAnalysis? _graphicsAnalysis;
+
+        public DxHost()
+        {
+#if DEBUG
+            var flags = D3D11.DeviceCreationFlags.Debug;
+#else
+            var flags = D3D11.DeviceCreationFlags.None;
+#endif
+            Device = new D3D11.Device(DriverType.Hardware, flags);
+            _annotation = Device.ImmediateContext.QueryInterface<D3D11.UserDefinedAnnotation>();
+            _graphicsAnalysis = DebugInterface.TryCreateGraphicsAnalysis();
+
+            _actionQueue = new();
+            _renderThread = new(RenderThreadStart) { Name = "WPF SwapChain" };
+            _renderThread.SetApartmentState(ApartmentState.STA);
+            _renderThread.Start();
+            _renderThreadStarted.WaitOne();
+
+            var device = Device;
+            var context = Device.ImmediateContext;
+            MainDispatcher = Dispatcher.CurrentDispatcher;
+            Locator.CurrentMutable.Register(() => new DisplayTexturePipeline(device, context));
+        }
+
+        public void Load(Window window)
+        {
+            _renderWindowHandle = Process.GetCurrentProcess().MainWindowHandle;
+            CreateDevice();
+        }
+
+        public void Unload()
+        {
+            RenderDispatcher?.BeginInvokeShutdown(DispatcherPriority.Background);
+            RenderDispatcher = null;
+        }
+
+        private void RenderThreadStart(object? o)
+        {
+            RenderDispatcher = Dispatcher.CurrentDispatcher;
+            RenderDispatcher.BeginInvoke(new Action(UpdateFrameTick));
+            _renderThreadStarted.Set();
+            Dispatcher.Run();
+        }
+
+        private void UpdateFrameTick()
+        {
+            if (RenderDispatcher == null)
+                return;
+
+            if (_actionQueue.Count == 0)
+            {
+                RenderDispatcher.BeginInvoke(new Action(UpdateFrameTick), DispatcherPriority.Background);
+                return;
+            }
+            
+            EnsureTargetDevice();
+            while (_actionQueue.TryDequeue(out var action))
+                action(Device, Device.ImmediateContext);
+
+            RenderDispatcher?.BeginInvoke(new Action(UpdateFrameTick), DispatcherPriority.Render);
+        }
+
+        public void EnqueueAction(RenderDelegate action)
+        {
+            _actionQueue.Enqueue(action);
+        }
+
+        [DllImport("user32.dll")]
+        private static extern IntPtr MonitorFromWindow(IntPtr hWnd, int flags);
+
+        private void EnsureTargetDevice()
+        {
+            if (D3D9Device != null)
+                return;
+
+            MainDispatcher!.Invoke(CreateDevice);
+        }
+
+        private void CreateDevice()
+        {
+            var d3d9Ex = new Direct3DEx();
+            var adapter = 0;
+
+            if (d3d9Ex.AdapterCount > 1)
+            {
+                const int monitorDefaultToNearest = 2;
+                var hMon = MonitorFromWindow(_renderWindowHandle, monitorDefaultToNearest);
+
+                foreach (var a in d3d9Ex.AdaptersEx)
+                    if (a.Monitor == hMon)
+                        adapter = a.Adapter;
+            }
+
+            var parameters = new PresentParameters
+            {
+                PresentationInterval = PresentInterval.Immediate,
+                SwapEffect = SwapEffect.Discard,
+                Windowed = true
+            };
+
+            D3D9Device = new DeviceEx(d3d9Ex, adapter, DeviceType.Hardware, _renderWindowHandle, CreateFlags.HardwareVertexProcessing | CreateFlags.FpuPreserve | CreateFlags.Multithreaded, parameters);
+        }
+    }
+}

intromat/Intromat/Helpers/IOHelper.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Runtime.InteropServices;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Intromat.Helpers
+{
+    public static class IOHelper
+    {
+        public static string GetRelativePath(string basePath, string fullPath)
+        {
+            if (string.IsNullOrEmpty(basePath))
+                return fullPath ?? "";
+
+            if (string.IsNullOrEmpty(fullPath))
+                return "";
+
+            if (basePath.Last() != '\\')
+                basePath += "\\";
+
+            var builder = new StringBuilder(4096);
+            _ = PathRelativePathTo(builder, basePath, 0, fullPath, 0);
+            return builder.ToString()[2..];
+        }
+
+
+        [DllImport("shlwapi.dll", EntryPoint = "PathRelativePathTo", CharSet = CharSet.Unicode)]
+        private static extern bool PathRelativePathTo(StringBuilder lpszDst, string from, uint attrFrom, string to, uint attrTo);
+    }
+}

intromat/Intromat/Interfaces/IExpressionEditor.cs

@@ -0,0 +1,20 @@
+using Intromat.Nodes.Code;
+using Intromat.ViewModels;
+
+namespace Intromat.Interfaces
+{
+    public interface IExpressionEditor
+    {
+        ERelativeSource RelativeSource
+        {
+            get;
+            set;
+        }
+
+        bool HasParentSource { get; }
+
+        bool HasInputSource { get; }
+
+        CodeGenPortViewModel CodeGenPort { get; }
+    }
+}

intromat/Intromat/Interfaces/IFile.cs

@@ -0,0 +1,24 @@
+using Intromat.ViewModels;
+
+namespace Intromat.Interfaces
+{
+    public interface IFile
+    {
+        bool IsDirty
+        {
+            get;
+            set;
+        }
+
+        string FullPath
+        {
+            get;
+        }
+
+        string Name
+        {
+            get;
+            set;
+        }
+    }
+}

intromat/Intromat/Interfaces/IPipeline.cs

@@ -0,0 +1,7 @@
+namespace Intromat.Interfaces
+{
+    public interface IPipeline
+    {
+        void Apply();
+    }
+}

intromat/Intromat/Interfaces/IRefreshProperties.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using DynamicData;
+
+namespace Intromat.Interfaces
+{
+    public interface IRefreshProperties
+    {
+        IObservableList<PropertyDescriptor>? PropertyDescriptors { get; }
+    }
+}

intromat/Intromat/Interfaces/ITreeItem.cs

@@ -0,0 +1,9 @@
+namespace Intromat.Interfaces
+{
+    public interface ITreeItem
+    {
+        string Name { get; }
+        bool IsExpanded { get; set; }
+        bool IsSelected { get; set; }
+    }
+}

intromat/Intromat/Interfaces/IUndoItem.cs

@@ -0,0 +1,9 @@
+namespace Intromat.Interfaces
+{
+    public interface IUndoItem
+    {
+        void Redo();
+        void Undo();
+        IFile File { get; }
+    }
+}

intromat/Intromat/Intromat.csproj

@@ -0,0 +1,62 @@
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFrameworks>net7.0-windows</TargetFrameworks>
+    <OutputType>WinExe</OutputType>
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+    <UseWindowsForms>true</UseWindowsForms>
+    <UseWPF>true</UseWPF>
+    <Nullable>enable</Nullable>
+    <StartupObject>Intromat.App</StartupObject>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
+    <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
+  </PropertyGroup>
+  <ItemGroup>
+    <None Remove="Resources\grid.png" />
+    <None Remove="Resources\HLSL-Mode.xshd" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Resources\HLSL-Mode.xshd" />
+  </ItemGroup>
+  <ItemGroup>
+    <Resource Include="Resources\grid.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\NodeNetworkToolkit\NodeNetworkToolkit.csproj" />
+    <ProjectReference Include="..\NodeNetwork\NodeNetwork.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="akavache" Version="7.3.1" />
+    <PackageReference Include="AvalonEdit" Version="6.1.3.50" />
+    <PackageReference Include="Dirkster.AvalonDock.Themes.VS2013" Version="4.60.0" />
+    <PackageReference Include="log4net" Version="2.0.12" />
+    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="PresentationFramework.Aero2" Version="1.0.1">
+      <NoWarn>NU1701</NoWarn>
+    </PackageReference>
+    <PackageReference Include="RxFileSystemWatcher" Version="1.0.0" />
+    <PackageReference Include="SharpDX" Version="4.2.0" />
+    <PackageReference Include="SharpDX.D3DCompiler" Version="4.2.0" />
+    <PackageReference Include="SharpDX.Direct3D11" Version="4.2.0" />
+    <PackageReference Include="SharpDX.Direct3D9" Version="4.2.0" />
+    <PackageReference Include="Extended.Wpf.Toolkit" Version="4.1.0">
+      <NoWarn>NU1701</NoWarn>
+    </PackageReference>
+    <PackageReference Include="MoonSharp" Version="2.0.0.0" />
+    <PackageReference Include="morelinq" Version="3.3.2" />
+    <PackageReference Include="ReactiveUI" Version="13.2.18" />
+  </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
+  </ItemGroup>
+  <ItemGroup>
+    <Reference Include="Intromat.DXExt">
+      <HintPath>..\Intromat.DXExt\Intromat.DXExt.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+</Project>

intromat/Intromat/Intromat.csproj.user

@@ -0,0 +1,128 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup />
+  <ItemGroup>
+    <Compile Update="Views\CodeGenNetworkView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\DocumentView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\BooleanExpressionEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\BooleanValueEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\DimensionEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\EditorHeader.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\EnumEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\FloatExpressionEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Editors\FloatValueEditorView.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\ExplorerView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\NewFileWindow.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Preview2DView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Preview3DView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Previews\DxMeshPreview.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Previews\DxTexturePreview.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\Previews\StringPreview.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\PropertiesView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\ShaderFileView.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+    <Compile Update="Views\SplashScreenWindow.xaml.cs">
+      <SubType>Code</SubType>
+    </Compile>
+  </ItemGroup>
+  <ItemGroup>
+    <Page Update="Themes\CodeGenNodeView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\CodeGenNodeInputView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\CodeGenNodeOutputView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\Endpoint.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\ExtendedWpfToolkit.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\Icons.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\Resources.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\CodeGenNetworkView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\DocumentView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Editors\EditorHeader.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Themes\EditorStyles.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\ExplorerView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\NewFileWindow.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Preview2DView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Preview3DView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Previews\DxMeshPreview.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Previews\DxTexturePreview.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\Previews\StringPreview.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\PropertiesView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\ShaderFileView.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+    <Page Update="Views\SplashScreenWindow.xaml">
+      <SubType>Designer</SubType>
+    </Page>
+  </ItemGroup>
+</Project>

intromat/Intromat/Model/Compiler/CompilerContext.cs

@@ -0,0 +1,49 @@
+using System.Collections.Generic;
+using System.Linq;
+
+namespace Intromat.Model.Compiler
+{
+    public class ScopeDefinition
+    {
+        public ScopeDefinition(string identifier)
+        {
+            Identifier = identifier;
+        }
+
+        public string Identifier { get; }
+
+        public List<IVariableDefinition> Variables { get; } = new();
+    }
+
+    public class CompilerContext
+    {
+        public Stack<ScopeDefinition> VariablesScopesStack { get; } = new();
+
+        public string FindFreeVariableName()
+        {
+            return "v" + VariablesScopesStack.SelectMany(s => s.Variables).Count();
+        }
+
+        public void AddVariableToCurrentScope(IVariableDefinition variable)
+        {
+            VariablesScopesStack.Peek().Variables.Add(variable);
+        }
+
+        public void EnterNewScope(string scopeIdentifier)
+        {
+            VariablesScopesStack.Push(new ScopeDefinition(scopeIdentifier));
+        }
+
+        public void LeaveScope()
+        {
+            VariablesScopesStack.Pop();
+        }
+
+        public bool IsInScope(IVariableDefinition variable)
+        {
+            if (variable == null) return false;
+
+            return VariablesScopesStack.Any(s => s.Variables.Contains(variable));
+        }
+    }
+}

intromat/Intromat/Model/Compiler/Error/CompilerException.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace Intromat.Model.Compiler.Error
+{
+    public class CompilerException : Exception
+    {
+        public CompilerException(string msg) : base(msg)
+        {
+        }
+
+        public CompilerException(string msg, Exception inner) : base(msg, inner)
+        {
+        }
+    }
+}

intromat/Intromat/Model/Compiler/Error/VariableOutOfScopeException.cs

@@ -0,0 +1,13 @@
+namespace Intromat.Model.Compiler.Error
+{
+    public class VariableOutOfScopeException : CompilerException
+    {
+        public VariableOutOfScopeException(string variableName)
+            : base($"The variable '{variableName}' was referenced outside its scope.")
+        {
+            VariableName = variableName;
+        }
+
+        public string VariableName { get; }
+    }
+}

intromat/Intromat/Model/Compiler/IStatement.cs

@@ -0,0 +1,10 @@
+using System.Text;
+
+namespace Intromat.Model.Compiler
+{
+    public interface IStatement
+    {
+        void Compile(CompilerContext context, StringBuilder sb);
+        void CompileHeader(CompilerContext context, StringBuilder sb);
+    }
+}

intromat/Intromat/Model/Compiler/ITypedExpression.cs

@@ -0,0 +1,15 @@
+using System.Text;
+
+namespace Intromat.Model.Compiler
+{
+    public interface IExpression
+    {
+        void Compile(CompilerContext context, StringBuilder sb);
+    }
+
+    public interface ITypedExpression<T> : IExpression
+    {
+        string? PreviewValue { get; }
+        T Evaluate();
+    }
+}

intromat/Intromat/Model/Compiler/MeshValue.cs

@@ -0,0 +1,15 @@
+using SharpDX.Direct3D11;
+
+namespace Intromat.Model.Compiler
+{
+    public class MeshValue
+    {
+        public MeshValue()
+        {
+        }
+
+        public MeshValue(MeshValue other)
+        {
+        }
+    }
+}

intromat/Intromat/Model/Compiler/TextureValue.cs

@@ -0,0 +1,24 @@
+using SharpDX.Direct3D11;
+
+namespace Intromat.Model.Compiler
+{
+    public class TextureValue
+    {
+        public TextureValue()
+        {
+        }
+
+        public TextureValue(TextureValue other)
+        {
+            Width = other.Width;
+            Height = other.Height;
+            ShaderResourceView = other.ShaderResourceView;
+            UnorderedAccessView = other.UnorderedAccessView;
+        }
+
+        public int Width { get; set; }
+        public int Height { get; set; }
+        public ShaderResourceView? ShaderResourceView { get; set; }
+        public UnorderedAccessView? UnorderedAccessView { get; set; }
+    }
+}

intromat/Intromat/Model/ITypedVariableDefinition.cs

@@ -0,0 +1,13 @@
+using Intromat.Model.Compiler;
+
+namespace Intromat.Model
+{
+    public interface IVariableDefinition : IStatement
+    {
+        string? VariableName { get; }
+    }
+
+    public interface ITypedVariableDefinition<T> : IVariableDefinition
+    {
+    }
+}

intromat/Intromat/Model/InlineVariableDefinition.cs

@@ -0,0 +1,25 @@
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Model
+{
+    public class InlineVariableDefinition<T> : ITypedVariableDefinition<T>
+    {
+        public ITypedExpression<T>? Value { get; set; }
+        public string? VariableName { get; private set; }
+
+        public void Compile(CompilerContext context, StringBuilder sb)
+        {
+            VariableName = context.FindFreeVariableName();
+            context.AddVariableToCurrentScope(this);
+            sb.Append($"{VariableName} = ");
+            Debug.Assert(Value != null, nameof(Value) + " != null");
+            Value.Compile(context, sb);
+        }
+
+        public void CompileHeader(CompilerContext context, StringBuilder sb)
+        {
+        }
+    }
+}

intromat/Intromat/Model/LocalVariableDefinition.cs

@@ -0,0 +1,24 @@
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Model
+{
+    public class LocalVariableDefinition<T> : ITypedVariableDefinition<T>
+    {
+        public string? Value { get; set; }
+        public string? VariableName { get; private set; }
+
+        public void Compile(CompilerContext context, StringBuilder sb)
+        {
+            VariableName = context.FindFreeVariableName();
+            context.AddVariableToCurrentScope(this);
+            Debug.Assert(Value != null, nameof(Value) + " != null");
+            sb.Append($"local {VariableName} = {Value}\n");
+        }
+
+        public void CompileHeader(CompilerContext context, StringBuilder sb)
+        {
+        }
+    }
+}

intromat/Intromat/Nodes/Code/BooleanLiteralModel.cs

@@ -0,0 +1,14 @@
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("BooleanLiteral", Namespace = _namespace)]
+    public sealed class BooleanLiteralModel : LiteralModelBase<bool>
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new BooleanLiteralNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/BooleanLiteralNode.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class BooleanLiteralNode : CodeGenNodeViewModel
+    {
+        static BooleanLiteralNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<BooleanLiteralNode>));
+        }
+
+        public BooleanLiteralNode() : base(NodeType.Literal)
+        {
+            Name = "Boolean";
+
+            Output = new CodeGenOutputViewModel<ITypedExpression<bool>>(EPortType.Boolean)
+            {
+                Name = "Value",
+                Editor = ValueEditor,
+                Value = ValueEditor.ValueChanged.Select(v => new BooleanLiteralValue { Value = v })
+            };
+            Outputs.Add(Output);
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Output.CurrentValue)
+                .Where(v => v != null)
+                .Subscribe(_ => stringPreview.Value = Output.CurrentValue.PreviewValue ?? "False");
+        }
+
+        public BooleanValueEditorViewModel ValueEditor { get; } = new();
+
+        public ValueNodeOutputViewModel<ITypedExpression<bool>> Output { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new BooleanLiteralModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var booleanLiteral = (BooleanLiteralModel)model;
+            ValueEditor.Value = booleanLiteral.Value;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var booleanLiteral = (BooleanLiteralModel)model;
+            booleanLiteral.Value = ValueEditor.Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/BooleanLiteralValue.cs

@@ -0,0 +1,6 @@
+namespace Intromat.Nodes.Code
+{
+    public class BooleanLiteralValue : LiteralValueBase<bool>
+    {
+    }
+}

intromat/Intromat/Nodes/Code/FloatLiteralModel.cs

@@ -0,0 +1,14 @@
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("FloatLiteral", Namespace = _namespace)]
+    public sealed class FloatLiteralModel : LiteralModelBase<float>
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new FloatLiteralNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/FloatLiteralNode.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class FloatLiteralNode : CodeGenNodeViewModel
+    {
+        static FloatLiteralNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<FloatLiteralNode>));
+        }
+
+        public FloatLiteralNode() : base(NodeType.Literal)
+        {
+            Name = "Float";
+
+            Output = new CodeGenOutputViewModel<ITypedExpression<float>>(EPortType.Float)
+            {
+                Name = "Value",
+                Editor = ValueEditor,
+                Value = ValueEditor.ValueChanged.Select(v => new FloatLiteralValue { Value = v })
+            };
+            Outputs.Add(Output);
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Output.CurrentValue)
+                .Where(v => v != null)
+                .Subscribe(_ => stringPreview.Value = Output.CurrentValue.PreviewValue ?? "0.0");
+        }
+
+        public FloatValueEditorViewModel ValueEditor { get; } = new();
+
+        public ValueNodeOutputViewModel<ITypedExpression<float>> Output { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new FloatLiteralModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var floatLiteral = (FloatLiteralModel)model;
+            ValueEditor.Value = floatLiteral.Value;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var floatLiteral = (FloatLiteralModel)model;
+            floatLiteral.Value = ValueEditor.Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/FloatLiteralValue.cs

@@ -0,0 +1,9 @@
+using System.Globalization;
+
+namespace Intromat.Nodes.Code
+{
+    public class FloatLiteralValue : LiteralValueBase<float>
+    {
+        public override string? PreviewValue => Value.ToString(CultureInfo.InvariantCulture);
+    }
+}

intromat/Intromat/Nodes/Code/ForLoopModel.cs

@@ -0,0 +1,19 @@
+using System.Xml.Serialization;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("ForLoop", Namespace = _namespace)]
+    public sealed class ForLoopModel : NodeModelBase
+    {
+        public IntLiteralModel FirstIndex { get; set; } = null!;
+
+        public IntLiteralModel LastIndex { get; set; } = null!;
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new ForLoopNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/ForLoopNode.cs

@@ -0,0 +1,114 @@
+using System;
+using System.Reactive;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class ForLoopNode : ExecutionNodeBase
+    {
+        static ForLoopNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<ForLoopNode>));
+        }
+
+        public ForLoopNode() : base(NodeType.Code)
+        {
+            var boundsGroup = new EndpointGroup("Bounds");
+
+            Name = "For Loop";
+
+            LoopBodyFlow = new CodeGenInputViewModel<IStatement>(EPortType.Execution)
+            {
+                Name = "Loop Body",
+                Group = _executionFlowGroup
+            };
+            Inputs.Add(LoopBodyFlow);
+
+            FirstIndex = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "First Index",
+                Group = boundsGroup,
+                Editor = FirstIndexEditor
+            };
+            Inputs.Add(FirstIndex);
+
+            LastIndex = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Last Index",
+                Group = boundsGroup,
+                Editor = LastIndexEditor
+            };
+
+            Inputs.Add(LastIndex);
+
+            var loopBodyChanged = LoopBodyFlow.ValueChanged.Select(_ => Unit.Default).StartWith(Unit.Default);
+            FlowIn.Value = loopBodyChanged
+                .CombineLatest(FlowOutChanged, FirstIndex.ValueChanged, LastIndex.ValueChanged, (bodyChange, endChange, firstI, lastI) => (BodyChange: bodyChange, EndChange: endChange, FirstI: firstI, LastI: lastI))
+                .Select(v => new ForLoopValue
+                {
+                    LoopBody = LoopBodyFlow.Value,
+                    FlowOut = FlowOut.Value,
+                    LowerBound = v.FirstI,
+                    UpperBound = v.LastI
+                });
+
+            CurrentIndex = new CodeGenOutputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Current Index",
+                Value = FlowIn.Value.Select(v => new VariableReference<int> { LocalVariable = ((ForLoopValue)v).CurrentIndex })
+            };
+            Outputs.Add(CurrentIndex);
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            FlowIn.Value.Subscribe(v =>
+            {
+                var forLoop = (ForLoopValue)v;
+                stringPreview.Value = $"[{forLoop.LowerBound?.PreviewValue ?? "0"}..{forLoop.UpperBound?.PreviewValue ?? "0"}]";
+            });
+        }
+
+        public ValueNodeInputViewModel<IStatement> LoopBodyFlow { get; }
+
+        public IntegerExpressionEditorViewModel FirstIndexEditor { get; } = new();
+        public ValueNodeInputViewModel<ITypedExpression<int>> FirstIndex { get; }
+
+        public IntegerExpressionEditorViewModel LastIndexEditor { get; } = new();
+        public ValueNodeInputViewModel<ITypedExpression<int>> LastIndex { get; }
+
+        public ValueNodeOutputViewModel<ITypedExpression<int>> CurrentIndex { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new ForLoopModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var forLoop = (ForLoopModel)model;
+            forLoop.FirstIndex = FirstIndexEditor.CreateModel();
+            forLoop.LastIndex = LastIndexEditor.CreateModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var forLoop = (ForLoopModel)model;
+            FirstIndexEditor.LoadModel(forLoop.FirstIndex);
+            LastIndexEditor.LoadModel(forLoop.LastIndex);
+        }
+    }
+}

intromat/Intromat/Nodes/Code/ForLoopValue.cs

@@ -0,0 +1,48 @@
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Nodes.Code
+{
+    public class ForLoopValue : ExecutionValueBase
+    {
+        public IStatement? LoopBody { get; set; }
+
+        public ITypedExpression<int>? LowerBound { get; set; }
+        public ITypedExpression<int>? UpperBound { get; set; }
+
+        public InlineVariableDefinition<int> CurrentIndex { get; } = new();
+
+        public override void Compile(CompilerContext context, StringBuilder sb)
+        {
+            Debug.Assert(UpperBound != null, nameof(UpperBound) + " != null");
+
+            context.EnterNewScope("For loop");
+
+            CurrentIndex.Value = LowerBound;
+            sb.Append("for (");
+            CurrentIndex.Compile(context, sb);
+            sb.Append("; ");
+            sb.Append(CurrentIndex.VariableName);
+            sb.Append(" <= ");
+            UpperBound.Compile(context, sb);
+            sb.Append("; ++");
+            sb.Append(CurrentIndex.VariableName);
+            sb.Append(")\n{\n");
+            LoopBody?.Compile(context, sb);
+            sb.Append("\n}\n");
+
+            context.LeaveScope();
+
+            base.Compile(context, sb);
+        }
+
+        public override void CompileHeader(CompilerContext context, StringBuilder sb)
+        {
+            LoopBody?.CompileHeader(context, sb);
+
+            base.CompileHeader(context, sb);
+        }
+    }
+}

intromat/Intromat/Nodes/Code/FunctionCall.cs

@@ -0,0 +1,31 @@
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Nodes.Code
+{
+    public class FunctionCall : ExecutionValueBase
+    {
+        public string? FunctionName { get; set; }
+        public List<IExpression> Parameters { get; } = new();
+
+        public override void Compile(CompilerContext context, StringBuilder sb)
+        {
+            Debug.Assert(FunctionName != null, nameof(FunctionName) + " != null");
+
+            sb.Append($"{FunctionName}(");
+            for (int i = 0, n = Parameters.Count; i < n; ++i)
+            {
+                var p = Parameters[i];
+                p.Compile(context, sb);
+                if (i != n - 1)
+                    sb.Append(", ");
+            }
+
+            sb.Append(")\n");
+
+            base.Compile(context, sb);
+        }
+    }
+}

intromat/Intromat/Nodes/Code/IntLiteralModel.cs

@@ -0,0 +1,14 @@
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("IntLiteral", Namespace = _namespace)]
+    public sealed class IntLiteralModel : LiteralModelBase<int>
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new IntLiteralNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/IntLiteralNode.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class IntLiteralNode : CodeGenNodeViewModel
+    {
+        static IntLiteralNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<IntLiteralNode>));
+        }
+
+        public IntLiteralNode() : base(NodeType.Literal)
+        {
+            Name = "Integer";
+
+            Output = new CodeGenOutputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Value",
+                Editor = ValueEditor,
+                Value = ValueEditor.ValueChanged.Select(v => new IntLiteralValue { Value = v })
+            };
+            Outputs.Add(Output);
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Output.CurrentValue)
+                .Where(v => v != null)
+                .Subscribe(_ => stringPreview.Value = Output.CurrentValue.PreviewValue ?? "0");
+        }
+
+        public IntegerValueEditorViewModel ValueEditor { get; } = new();
+
+        public ValueNodeOutputViewModel<ITypedExpression<int>> Output { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new IntLiteralModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var intLiteral = (IntLiteralModel)model;
+            ValueEditor.Value = intLiteral.Value;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var intLiteral = (IntLiteralModel)model;
+            intLiteral.Value = ValueEditor.Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/IntLiteralValue.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace Intromat.Nodes.Code
+{
+    public class IntLiteralValue : LiteralValueBase<int>
+    {
+        public int EvaluateDimension()
+        {
+            var relativeDimension = RelativeSource switch
+            {
+                ERelativeSource.Parent => 1 << ParentValue,
+                ERelativeSource.Input  => InputValue,
+                _                      => 1
+            };
+
+            var result = Value switch
+            {
+                < 0 => relativeDimension >> -Value,
+                > 0 => relativeDimension << Value,
+                _   => relativeDimension
+            };
+            return Math.Max(1, Math.Min(8192, result));
+        }
+    }
+}

intromat/Intromat/Nodes/Code/LiteralModelBase.cs

@@ -0,0 +1,34 @@
+using System.Xml.Serialization;
+using Intromat.Nodes.Textures;
+using Intromat.PersistentModel;
+
+namespace Intromat.Nodes.Code
+{
+    public enum ERelativeSource
+    {
+        Custom,
+        Parent,
+        Input
+    }
+
+    [XmlInclude(typeof(IntLiteralModel))]
+    [XmlInclude(typeof(StringLiteralModel))]
+    [XmlInclude(typeof(FloatLiteralModel))]
+    [XmlInclude(typeof(BooleanLiteralModel))]
+    [XmlInclude(typeof(SamplerLiteralModel))]
+    public abstract class LiteralModelBase : NodeModelBase
+    {
+        public ERelativeSource RelativeSource { get; set; }
+    }
+
+    public class LiteralModelEntry
+    {
+        public string Key { get; set; } = null!;
+        public LiteralModelBase Literal { get; set; } = null!;
+    }
+
+    public abstract class LiteralModelBase<T> : LiteralModelBase
+    {
+        public T Value { get; set; } = default!;
+    }
+}

intromat/Intromat/Nodes/Code/LiteralValueBase.cs

@@ -0,0 +1,28 @@
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Nodes.Code
+{
+    public abstract class LiteralValueBase<T> : ITypedExpression<T>
+    {
+        public virtual string? PreviewValue => Value?.ToString();
+
+        public T ParentValue { get; set; } = default!;
+
+        public T InputValue { get; set; } = default!;
+
+        public T Value { get; set; } = default!;
+
+        public ERelativeSource RelativeSource { get; set; }
+
+        public virtual void Compile(CompilerContext context, StringBuilder sb)
+        {
+            sb.Append(Value);
+        }
+
+        public virtual T Evaluate()
+        {
+            return Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/PrintModel.cs

@@ -0,0 +1,17 @@
+using System.Xml.Serialization;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("Print", Namespace = _namespace)]
+    public sealed class PrintModel : NodeModelBase
+    {
+        public string? Text { get; set; }
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new PrintNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/PrintNode.cs

@@ -0,0 +1,75 @@
+using System;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class PrintNode : ExecutionNodeBase
+    {
+        static PrintNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<PrintNode>));
+        }
+
+        public PrintNode() : base(NodeType.Code)
+        {
+            Name = "Print";
+
+            Text = new CodeGenInputViewModel<ITypedExpression<string>>(EPortType.String)
+            {
+                Name = "Text",
+                Editor = TextEditor
+            };
+            Inputs.Add(Text);
+
+            FlowIn.Value = FlowOutChanged
+                .CombineLatest(Text.ValueChanged, (flowOutChanged, textValueChanged) => (FlowOutChanged: flowOutChanged, StringExpression: textValueChanged))
+                .Select(v => new FunctionCall
+                {
+                    FunctionName = "print",
+                    FlowOut = FlowOut.Value,
+                    Parameters = { v.StringExpression ?? new StringLiteralValue { Value = "" } }
+                });
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Text.Value)
+                .Where(v => v != null)
+                .Subscribe(_ => stringPreview.Value = Text.Value.PreviewValue ?? string.Empty);
+        }
+
+        public StringExpressionEditorViewModel TextEditor { get; } = new();
+
+        public ValueNodeInputViewModel<ITypedExpression<string>> Text { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new PrintModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var print = (PrintModel)model;
+            print.Text = TextEditor.Value is StringLiteralValue text ? text.Value : null;
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var print = (PrintModel)model;
+            if (print.Text != null)
+                TextEditor.Value = new StringLiteralValue { Value = print.Text };
+        }
+    }
+}

intromat/Intromat/Nodes/Code/StringFileModel.cs

@@ -0,0 +1,14 @@
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("StringFile", Namespace = _namespace)]
+    public sealed class StringFileModel : LiteralModelBase<string?>
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new StringFileNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/StringFileNode.cs

@@ -0,0 +1,121 @@
+using System;
+using System.IO;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.Utilities;
+using ReactiveUI;
+using RxFileSystemWatcher;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class StringFileNode : CodeGenNodeViewModel
+    {
+        private readonly ObservableAsPropertyHelper<ObservableFileSystemWatcher> _fileWatcher;
+        private readonly ObservableAsPropertyHelper<string> _fullPath;
+
+        static StringFileNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<StringFileNode>));
+        }
+
+        public StringFileNode() 
+            : base(NodeType.Literal)
+        {
+            Name = "String (file)";
+
+            Path = new CodeGenInputViewModel<string?>(EPortType.String)
+            {
+                Name = "Path",
+                Editor = PathEditor,
+            };
+            Inputs.Add(Path);
+
+            Contents = new CodeGenOutputViewModel<ITypedExpression<string?>>(EPortType.String)
+            {
+                Name = "Contents",
+            };
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Parent, vm => vm.Path.Value)
+                .Where(pair => pair.Item1 != null && pair.Item2 != null)
+                .Select(pair => System.IO.Path.Combine(((CodeGenNetworkViewModel)pair.Item1).Document.Parent.FullPath, pair.Item2!))
+                .StartWith(string.Empty)
+                .ToProperty(this, vm => vm.FullPath, out _fullPath);
+
+            this.WhenAnyValue(vm => vm.FullPath)
+                .Where(File.Exists)
+                .Select(path => new ObservableFileSystemWatcher(c =>
+                {
+                    c.Path = System.IO.Path.GetDirectoryName(path)!;
+                }))
+                .ToProperty(this, vm => vm.FileWatcher, out _fileWatcher);
+
+            Contents.Value = this.WhenAnyValue(vm => vm.FileWatcher)
+                .PairWithPreviousValue()
+                .Select(pair =>
+                {
+                    var oldWatcher = pair.OldValue;
+                    var newWatcher = pair.NewValue;
+
+                    oldWatcher?.Dispose();
+                    if (newWatcher != null)
+                    {
+                        stringPreview.Value = Path.Value!;
+                        var result = 
+                            newWatcher.Renamed.Where(e => e.FullPath == FullPath)
+                            .Merge(newWatcher.Changed.Where(e => e.FullPath == FullPath))
+                            .Throttle(TimeSpan.FromMilliseconds(100))
+                            .Select(_ => new StringLiteralValue() { Value = File.ReadAllText(FullPath) })
+                            .StartWith(new StringLiteralValue() { Value = File.ReadAllText(FullPath) });
+                        newWatcher.Start();
+                        return result;
+                    }
+
+                    stringPreview.Value = string.Empty;
+                    return Observable.Empty<StringLiteralValue>();
+                })
+                .Switch();
+
+            Outputs.Add(Contents);
+        }
+
+        public ObservableFileSystemWatcher FileWatcher => _fileWatcher.Value;
+
+        public string FullPath => _fullPath.Value;
+
+        public StringValueEditorViewModel PathEditor { get; } = new();
+
+        public ValueNodeInputViewModel<string?> Path { get; }
+
+        public ValueNodeOutputViewModel<ITypedExpression<string?>> Contents { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new StringFileModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var fileModel = (StringFileModel)model;
+            PathEditor.Value = fileModel.Value;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var fileModel = (StringFileModel)model;
+            fileModel.Value = PathEditor.Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/StringLiteralModel.cs

@@ -0,0 +1,14 @@
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Code
+{
+    [XmlRoot("StringLiteral", Namespace = _namespace)]
+    public sealed class StringLiteralModel : LiteralModelBase<string?>
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new StringLiteralNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Code/StringLiteralNode.cs

@@ -0,0 +1,66 @@
+using System;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes.Code
+{
+    public class StringLiteralNode : CodeGenNodeViewModel
+    {
+        static StringLiteralNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<StringLiteralNode>));
+        }
+
+        public StringLiteralNode() : base(NodeType.Literal)
+        {
+            Name = "String";
+
+            Output = new CodeGenOutputViewModel<ITypedExpression<string?>>(EPortType.String)
+            {
+                Name = "Value",
+                Editor = ValueEditor,
+                Value = ValueEditor.ValueChanged.Select(v => new StringLiteralValue { Value = v })
+            };
+            Outputs.Add(Output);
+
+            var stringPreview = new StringPreviewViewModel();
+            Preview = stringPreview;
+
+            this.WhenAnyValue(vm => vm.Output.CurrentValue)
+                .Where(v => v != null)
+                .Subscribe(_ => stringPreview.Value = ((StringLiteralValue)Output.CurrentValue).Value ?? string.Empty);
+        }
+
+        public StringValueEditorViewModel ValueEditor { get; } = new();
+
+        public ValueNodeOutputViewModel<ITypedExpression<string?>> Output { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new StringLiteralModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var textLiteral = (StringLiteralModel)model;
+            ValueEditor.Value = textLiteral.Value;
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var textLiteral = (StringLiteralModel)model;
+            textLiteral.Value = ValueEditor.Value;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/StringLiteralValue.cs

@@ -0,0 +1,21 @@
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Nodes.Code
+{
+    public class StringLiteralValue : LiteralValueBase<string?>
+    {
+        public override string? PreviewValue => Value;
+
+        public override void Compile(CompilerContext context, StringBuilder sb)
+        {
+            sb.Append($"\"{Value}\"");
+        }
+
+        public override string Evaluate()
+        {
+            return Value ?? string.Empty;
+        }
+    }
+}

intromat/Intromat/Nodes/Code/VariableReference.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Diagnostics;
+using System.Text;
+using Intromat.Model;
+using Intromat.Model.Compiler;
+using Intromat.Model.Compiler.Error;
+
+namespace Intromat.Nodes.Code
+{
+    public class VariableReference<T> : ITypedExpression<T>
+    {
+        public string? PreviewValue => LocalVariable?.VariableName;
+
+        public ITypedVariableDefinition<T>? LocalVariable { get; set; }
+
+        public void Compile(CompilerContext context, StringBuilder sb)
+        {
+            var localVariable = LocalVariable;
+            Debug.Assert(localVariable != null, nameof(localVariable) + " != null");
+            Debug.Assert(localVariable.VariableName != null, $"{nameof(localVariable)}.{nameof(localVariable.VariableName)} != null");
+
+            if (!context.IsInScope(localVariable))
+                throw new VariableOutOfScopeException(localVariable.VariableName);
+
+            sb.Append(localVariable.VariableName);
+        }
+        public T Evaluate()
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

intromat/Intromat/Nodes/DxNodeBase.cs

@@ -0,0 +1,28 @@
+using System;
+using System.Reactive;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.ViewModels;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Nodes
+{
+    public abstract class DxNodeBase : CodeGenNodeViewModel
+    {
+        protected DxNodeBase()
+            : base(NodeType.Literal)
+        {
+            AnyInputChanged = Inputs
+                .Connect()
+                .Filter(input => input is ValueNodeInputViewModelBase)
+                .WhenValueChanged(input => ((ValueNodeInputViewModelBase)input).UnitValueChanged)
+                .SelectMany(i => i!);
+
+            AnyInputChanged.Subscribe(_ => { });
+            Resizable = ResizeOrientation.HorizontalAndVertical;
+        }
+
+        public IObservable<Unit> AnyInputChanged { get; }
+    }
+}

intromat/Intromat/Nodes/ExecutionNodeBase.cs

@@ -0,0 +1,44 @@
+using System;
+using System.Reactive;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.ViewModels;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+
+namespace Intromat.Nodes
+{
+    public abstract class ExecutionNodeBase : CodeGenNodeViewModel
+    {
+        protected readonly EndpointGroup _executionFlowGroup;
+
+        protected ExecutionNodeBase(NodeType type)
+            : base(type)
+        {
+            _executionFlowGroup = new EndpointGroup("Execution Flow");
+
+            FlowOut = new CodeGenInputViewModel<IStatement>(EPortType.Execution)
+            {
+                Name = "Flow",
+                Group = _executionFlowGroup
+            };
+            Inputs.Add(FlowOut);
+
+            FlowOutChanged = FlowOut.ValueChanged.Select(_ => Unit.Default).StartWith(Unit.Default);
+            
+            FlowIn = new CodeGenOutputViewModel<IStatement>(EPortType.Execution)
+            {
+                Name = "Flow",
+                Group = _executionFlowGroup
+            };
+            Outputs.Add(FlowIn);
+        }
+
+        public ValueNodeOutputViewModel<IStatement> FlowIn { get; }
+
+        public ValueNodeInputViewModel<IStatement> FlowOut { get; }
+
+        public IObservable<Unit> FlowOutChanged { get; }
+    }
+}

intromat/Intromat/Nodes/ExecutionValueBase.cs

@@ -0,0 +1,24 @@
+using System.Text;
+using Intromat.Model.Compiler;
+
+namespace Intromat.Nodes
+{
+    public abstract class ExecutionValueBase : IStatement
+    {
+        public IStatement? FlowOut { get; set; }
+
+        public virtual void Compile(CompilerContext context, StringBuilder sb)
+        {
+            if (FlowOut != null)
+            {
+                FlowOut.Compile(context, sb);
+                sb.Append("\n");
+            }
+        }
+
+        public virtual void CompileHeader(CompilerContext context, StringBuilder sb)
+        {
+            FlowOut?.CompileHeader(context, sb);
+        }
+    }
+}

intromat/Intromat/Nodes/MainEntryPointModel.cs

@@ -0,0 +1,15 @@
+using System.Xml.Serialization;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes
+{
+    [XmlRoot("MainEntryPoint", Namespace = _namespace)]
+    public sealed class MainEntryPointModel : NodeModelBase
+    {
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new MainEntryPointNode();
+        }
+    }
+}

intromat/Intromat/Nodes/MainEntryPointNode.cs

@@ -0,0 +1,36 @@
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using Splat;
+
+namespace Intromat.Nodes
+{
+    public class MainEntryPointNode : CodeGenNodeViewModel
+    {
+        static MainEntryPointNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<MainEntryPointNode>));
+        }
+
+        public MainEntryPointNode()
+            : base(NodeType.Special)
+        {
+            Name = "Main";
+
+            OnClickFlow = new CodeGenInputViewModel<IStatement>(EPortType.Execution) { Name = "Entry point" };
+
+            Inputs.Add(OnClickFlow);
+        }
+
+        public ValueNodeInputViewModel<IStatement> OnClickFlow { get; }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new MainEntryPointModel();
+        }
+    }
+}

intromat/Intromat/Nodes/Meshes/DxMeshModelBase.cs

@@ -0,0 +1,8 @@
+using Intromat.PersistentModel;
+
+namespace Intromat.Nodes.Meshes
+{
+    public abstract class DxMeshModelBase : NodeModelBase
+    {
+    }
+}

intromat/Intromat/Nodes/Meshes/DxMeshNodeBase.cs

@@ -0,0 +1,97 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Graphics;
+using Intromat.Model.Compiler;
+using Intromat.Nodes.Code;
+using Intromat.Nodes.Meshes;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using SharpDX.Direct3D11;
+using SharpDX.DXGI;
+using Splat;
+using Xceed.Wpf.Toolkit.PropertyGrid.Attributes;
+using Device = SharpDX.Direct3D11.Device;
+
+namespace Intromat.Nodes.Meshs
+{
+    [CategoryOrder("Mesh", 0)]
+    public abstract class DxMeshNodeBase : DxNodeBase
+    {
+        protected MeshValue? _output;
+        protected bool _resourcesCreated;
+
+        protected DxMeshNodeBase()
+        {
+            var meshGroup = new EndpointGroup("Mesh");
+            Outputs.Add(Output = new CodeGenOutputViewModel<MeshValue?>(EPortType.Mesh)
+            {
+                Name = "Output",
+                Group = meshGroup
+            });
+
+            var dxHost = Locator.Current.GetService<DxHost>()!;
+            Output.Value = this
+                .WhenAnyObservable(vm => vm.ParentChanged, vm => vm.AnyInputChanged, (parent, _) => parent)
+                .Where(parent => parent != null)
+                .Throttle(TimeSpan.FromMilliseconds(1))
+                .ObserveOn(dxHost.RenderDispatcher)
+                .Do(_ => { UpdateFrame(dxHost.Device, dxHost.Device.ImmediateContext); })
+                .Select(_ => new MeshValue(_output!));
+
+            var dxMeshPreviewViewModel = new DxMeshPreviewViewModel(this, Output.Value);
+            Preview = dxMeshPreviewViewModel;
+        }
+
+        [MemberNotNull(nameof(_output))]
+        protected bool EnsureBuffers(Device device)
+        {
+            return EnsureMesh(device, ref _output);
+        }
+
+        protected bool EnsureMesh(Device device, [NotNull] ref MeshValue? meshValue)
+        {
+            meshValue = null!;
+            //if (false) // TODO: changed
+            //{
+            //    return true;
+            //}
+
+            return false;
+        }
+
+        protected virtual void UpdateFrame(Device device, DeviceContext deviceContext)
+        {
+            if (!_resourcesCreated)
+            {
+                _resourcesCreated = true;
+                CreateDeviceResources(device);
+            }
+            EnsureBuffers(device);
+        }
+
+        protected virtual void CreateDeviceResources(Device device)
+        {
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var meshModel = (DxMeshModelBase)model;
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var meshModel = (DxMeshModelBase)model;
+        }
+
+        public ValueNodeOutputViewModel<MeshValue?> Output { get; }
+    }
+}

intromat/Intromat/Nodes/Textures/Blend2DColorModel.cs

@@ -0,0 +1,22 @@
+using System;
+using System.Xml.Serialization;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Textures
+{
+    [XmlRoot("Blend2DColor", Namespace = _namespace)]
+    public class Blend2DColorModel : DxTextureModelBase
+    {
+        public enum EBlendMode
+        {
+            Multiply
+        }
+
+        public EBlendMode BlendMode { get; set; }
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new Blend2DColorNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/Blend2DColorNode.cs

@@ -0,0 +1,129 @@
+using System;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using ReactiveUI;
+using SharpDX.D3DCompiler;
+using SharpDX.Direct3D11;
+using Splat;
+using Buffer = SharpDX.Direct3D11.Buffer;
+
+namespace Intromat.Nodes.Textures
+{
+    public class Blend2DColorNode : DxTextureFilterNodeBase
+    {
+        private Buffer? _constantBuffer;
+        private ComputeShader? _cs;
+        private const string _computeShader = @"cbuffer cb
+        {
+            int m;
+        }
+        
+        Texture2D tSource;
+        Texture2D tTarget;
+        SamplerState ss;
+        RWTexture2D<float4> o;
+        [numthreads(16,16,1)]
+        void main(in uint3 i : SV_DispatchThreadID)
+        {
+            float2 dim;
+            o.GetDimensions(dim.x, dim.y);
+            float2 uv = i.xy / dim;
+            float4 src = tSource.SampleLevel(ss, uv, 0);
+            float4 dst = tTarget.SampleLevel(ss, uv, 0);
+            switch (m)
+            {
+                case 0: o[i.xy] = src * dst; break;
+            }
+        }";
+
+        static Blend2DColorNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<Blend2DColorNode>));
+        }
+
+        public Blend2DColorNode()
+        {
+            Name = "Blend";
+
+            Inputs.Add(Target = new CodeGenInputViewModel<TextureValue?>(EPortType.Texture)
+            {
+                Name = "Target",
+                Group = Width.Group
+            });
+
+            Inputs.Add(BlendMode = new CodeGenInputViewModel<int>(EPortType.None)
+            {
+                Name = "Blend mode",
+                Group = Width.Group,
+                Editor = BlendModeEditor
+            });
+        }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new Blend2DColorModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var blend2D = (Blend2DColorModel)model;
+            blend2D.BlendMode = (Blend2DColorModel.EBlendMode)BlendModeEditor.Value;
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var blend2D = (Blend2DColorModel)model;
+            BlendModeEditor.Value = (int)blend2D.BlendMode;
+        }
+
+        protected override void CreateDeviceResources(Device device)
+        {
+            base.CreateDeviceResources(device);
+
+            var bufferDesc = new BufferDescription(16, ResourceUsage.Dynamic, BindFlags.ConstantBuffer, CpuAccessFlags.Write, ResourceOptionFlags.None, 0);
+            _constantBuffer = new Buffer(device, bufferDesc);
+            var flags = ShaderFlags.None;
+#if DEBUG
+            flags |= ShaderFlags.Debug;
+#endif
+            _cs = new ComputeShader(device, ShaderBytecode.Compile(_computeShader, "main", "cs_5_0", flags).Bytecode.Data);
+        }
+
+        protected override unsafe void UpdateFrame(Device device, DeviceContext context)
+        {
+            base.UpdateFrame(device, context);
+            var srvSource = Input.Value?.ShaderResourceView;
+            var srvTarget = Target.Value?.ShaderResourceView;
+            if (srvSource == null || srvTarget == null)
+                return;
+
+            context.MapSubresource(_constantBuffer, 0, MapMode.WriteDiscard, MapFlags.None, out var stream);
+            var ints = new Span<int>((void*)stream.DataPointer, 4);
+            ints[0] = BlendMode.Value;
+            context.UnmapSubresource(_constantBuffer, 0);
+
+            context.ComputeShader.SetConstantBuffer(0, _constantBuffer);
+            context.ComputeShader.SetShaderResource(0, srvSource);
+            context.ComputeShader.SetShaderResource(1, srvTarget);
+            context.ComputeShader.SetSampler(0, _samplerState);
+            context.ComputeShader.SetShader(_cs, null, 0);
+            context.ComputeShader.SetUnorderedAccessView(0, _output!.UnorderedAccessView);
+            context.Dispatch(_texDesc.Width / 16, _texDesc.Height / 16, 1);
+            context.ComputeShader.SetShaderResource(0, null);
+            context.ComputeShader.SetShaderResource(1, null);
+            context.ComputeShader.SetUnorderedAccessView(0, null);
+        }
+
+        public ValueNodeInputViewModel<TextureValue?> Target { get; }
+
+        public EnumEditorViewModel BlendModeEditor { get; } = new(typeof(Blend2DColorModel.EBlendMode));
+        public ValueNodeInputViewModel<int> BlendMode { get; }
+    }
+}

intromat/Intromat/Nodes/Textures/DxTextureFilterNodeBase.cs

@@ -0,0 +1,39 @@
+using System.Diagnostics.CodeAnalysis;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.ViewModels;
+using NodeNetwork.Toolkit.ValueNode;
+using SharpDX.Direct3D11;
+
+namespace Intromat.Nodes.Textures
+{
+    public abstract class DxTextureFilterNodeBase : DxTextureNodeBase
+    {
+        protected SamplerState? _samplerState;
+
+        protected DxTextureFilterNodeBase()
+        {
+            Inputs.Add(Input = new CodeGenInputViewModel<TextureValue?>(EPortType.Texture)
+            {
+                Name = "Input",
+                Group = Width.Group
+            });
+            var inputObservable = Input.ValueChanged;
+            WidthEditor.InputValueProvider = inputObservable.Select(input => input?.Width ?? 0);
+            HeightEditor.InputValueProvider = inputObservable.Select(input => input?.Height ?? 0);
+        }
+        
+        [MemberNotNull(nameof(_samplerState))]
+        protected override void CreateDeviceResources(Device device)
+        {
+            base.CreateDeviceResources(device);
+
+            var samplerDesc = SamplerStateDescription.Default();
+            samplerDesc.Filter = Filter.MinMagMipLinear;
+            _samplerState = new SamplerState(device, samplerDesc);
+        }
+
+        public ValueNodeInputViewModel<TextureValue?> Input { get; }
+    }
+}

intromat/Intromat/Nodes/Textures/DxTextureModelBase.cs

@@ -0,0 +1,12 @@
+using Intromat.Nodes.Code;
+using Intromat.PersistentModel;
+
+namespace Intromat.Nodes.Textures
+{
+    public abstract class DxTextureModelBase : NodeModelBase
+    {
+        public IntLiteralModel Width { get; set; } = null!;
+
+        public IntLiteralModel Height { get; set; } = null!;
+    }
+}

intromat/Intromat/Nodes/Textures/DxTextureNodeBase.cs

@@ -0,0 +1,157 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Graphics;
+using Intromat.Model.Compiler;
+using Intromat.Nodes.Code;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.ViewModels.Previews;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using SharpDX.Direct3D11;
+using SharpDX.DXGI;
+using Splat;
+using Xceed.Wpf.Toolkit.PropertyGrid.Attributes;
+using Device = SharpDX.Direct3D11.Device;
+
+namespace Intromat.Nodes.Textures
+{
+    [CategoryOrder("Texture", 0)]
+    public abstract class DxTextureNodeBase : DxNodeBase
+    {
+        protected TextureValue? _output;
+        protected Texture2DDescription _texDesc;
+        protected bool _resourcesCreated;
+
+        protected DxTextureNodeBase()
+        {
+            var textureGroup = new EndpointGroup("Texture");
+            var parentObservable = this.WhenAnyObservable(vm => vm.ParentChanged).Select(parent => (CodeGenNetworkViewModel?)parent);
+            Inputs.Add(Width = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.None)
+            {
+                Name = "Width",
+                Group = textureGroup,
+                Editor = WidthEditor = new()
+                {
+                    ParentValueProvider = parentObservable.Select(parent => parent?.DefaultWidth ?? -1),
+                    MinValue = -16,
+                    MaxValue = 16,
+                    CustomValue = 0,
+                    RelativeSource = ERelativeSource.Parent
+                }
+            });
+            Inputs.Add(Height = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.None)
+            {
+                Name = "Height",
+                Group = textureGroup,
+                Editor = HeightEditor = new()
+                {
+                    ParentValueProvider = parentObservable.Select(parent => parent?.DefaultHeight ?? -1),
+                    MinValue = -16,
+                    MaxValue = 16,
+                    CustomValue = 0,
+                    RelativeSource = ERelativeSource.Parent
+                }
+            });
+            Outputs.Add(Output = new CodeGenOutputViewModel<TextureValue?>(EPortType.Texture)
+            {
+                Name = "Output",
+                Group = textureGroup
+            });
+
+            var dxHost = Locator.Current.GetService<DxHost>()!;
+            Output.Value = this
+                .WhenAnyObservable(vm => vm.ParentChanged, vm => vm.AnyInputChanged, (parent, _) => parent)
+                .Where(parent => parent != null)
+                .Throttle(TimeSpan.FromMilliseconds(1))
+                .ObserveOn(dxHost.RenderDispatcher)
+                .Do(_ => { UpdateFrame(dxHost.Device, dxHost.Device.ImmediateContext); })
+                .Select(_ => new TextureValue(_output!));
+
+            var dxTexturePreviewViewModel = new DxTexturePreviewViewModel(this, Output.Value);
+            Preview = dxTexturePreviewViewModel;
+
+            _texDesc = new Texture2DDescription
+            {
+                ArraySize = 1,
+                Format = Format.R16G16B16A16_Float,
+                BindFlags = BindFlags.ShaderResource | BindFlags.UnorderedAccess,
+                Usage = ResourceUsage.Default,
+                SampleDescription = new(1, 0)
+            };
+        }
+
+        [MemberNotNull(nameof(_output))]
+        protected bool EnsureBuffers(Device device)
+        {
+            return EnsureTexture(device, ref _output);
+        }
+
+        protected bool EnsureTexture(Device device, [NotNull] ref TextureValue? textureValue)
+        {
+            var width = ((IntLiteralValue)Width.Value).EvaluateDimension();
+            var height = ((IntLiteralValue)Height.Value).EvaluateDimension();
+            if (_texDesc.Width != width || _texDesc.Height != height || textureValue == null)
+            {
+                textureValue?.ShaderResourceView?.Resource?.Dispose();
+                textureValue?.ShaderResourceView?.Dispose();
+                textureValue?.UnorderedAccessView?.Dispose();
+
+                _texDesc.Width = width;
+                _texDesc.Height = height;
+                var texture = new Texture2D(device, _texDesc);
+
+                textureValue ??= new TextureValue();
+                textureValue.Width = width;
+                textureValue.Height = height;
+                textureValue.ShaderResourceView = new ShaderResourceView(device, texture);
+                textureValue.UnorderedAccessView = new UnorderedAccessView(device, texture);
+                return true;
+            }
+
+            return false;
+        }
+
+        protected virtual void UpdateFrame(Device device, DeviceContext deviceContext)
+        {
+            if (!_resourcesCreated)
+            {
+                _resourcesCreated = true;
+                CreateDeviceResources(device);
+            }
+            EnsureBuffers(device);
+        }
+
+        protected virtual void CreateDeviceResources(Device device)
+        {
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var textureModel = (DxTextureModelBase)model;
+            textureModel.Width = WidthEditor.CreateModel();
+            textureModel.Height = HeightEditor.CreateModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var textureModel = (DxTextureModelBase)model;
+            WidthEditor.LoadModel(textureModel.Width);
+            HeightEditor.LoadModel(textureModel.Height);
+        }
+
+        public DimensionEditorViewModel WidthEditor { get; }
+        public ValueNodeInputViewModel<ITypedExpression<int>> Width { get; }
+
+        public DimensionEditorViewModel HeightEditor { get; }
+        public ValueNodeInputViewModel<ITypedExpression<int>> Height { get; }
+
+        public ValueNodeOutputViewModel<TextureValue?> Output { get; }
+    }
+}

intromat/Intromat/Nodes/Textures/SamplerDesc.cs

@@ -0,0 +1,23 @@
+using ReactiveUI;
+using SharpDX.Direct3D11;
+
+namespace Intromat.Nodes.Textures
+{
+    public class SamplerDesc : ReactiveObject
+    {
+        private Filter _filter = SamplerStateDescription.Default().Filter;
+        private TextureAddressMode _address = SamplerStateDescription.Default().AddressU;
+
+        public Filter Filter
+        {
+            get => _filter; 
+            set => this.RaiseAndSetIfChanged(ref _filter, value);
+        }
+
+        public TextureAddressMode Address
+        {
+            get => _address; 
+            set => this.RaiseAndSetIfChanged(ref _address, value);
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/SamplerLiteralModel.cs

@@ -0,0 +1,16 @@
+using System.Xml.Serialization;
+using Intromat.Nodes.Code;
+using Intromat.ViewModels;
+using SharpDX.Direct3D11;
+
+namespace Intromat.Nodes.Textures
+{
+    [XmlRoot("SamplerLiteral", Namespace = _namespace)]
+    public sealed class SamplerLiteralModel : LiteralModelBase<SamplerDesc>
+    {
+        public override CodeGenNodeViewModel? CreateViewModel()
+        {
+            return null;
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/SamplerLiteralValue.cs

@@ -0,0 +1,10 @@
+using Intromat.Nodes.Code;
+using SharpDX.Direct3D11;
+
+namespace Intromat.Nodes.Textures
+{
+    public class SamplerLiteralValue : LiteralValueBase<SamplerDesc>
+    {
+        public SamplerState? SamplerState { get; set; }
+    }
+}

intromat/Intromat/Nodes/Textures/ShaderTextureModel.cs

@@ -0,0 +1,18 @@
+using System.Xml.Serialization;
+using Intromat.Nodes.Code;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Textures
+{
+    [XmlRoot("ShaderTexture", Namespace = _namespace)]
+    public sealed class ShaderTextureModel : DxTextureModelBase
+    {
+        public StringLiteralModel Source { get; set; } = null!;
+        public LiteralModelEntry[] InputValues { get; set; } = null!;
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new ShaderTextureNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/ShaderTextureNode.cs

@@ -0,0 +1,477 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reactive.Linq;
+using DynamicData;
+using Intromat.Graphics;
+using Intromat.Model.Compiler;
+using Intromat.Nodes.Code;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.Views;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using SharpDX;
+using SharpDX.D3DCompiler;
+using SharpDX.Direct3D;
+using SharpDX.Direct3D11;
+using Splat;
+using Buffer = SharpDX.Direct3D11.Buffer;
+
+namespace Intromat.Nodes.Textures
+{
+    public class ShaderTextureNode : DxTextureNodeBase
+    {
+        private readonly List<Buffer> _constantBuffers = new();
+        private ComputeShader? _cs;
+        private byte[]? _byteCode;
+        private TextureValue[]? _customOutputs;
+        private readonly List<(NodeInputViewModel, InputDesc)> _customInputs = new();
+        private readonly EndpointGroup _group;
+        private readonly Dictionary<string, object> _inputValues = new();
+
+        public record InputDesc(int ConstantBufferIndex, int Offset, Type VariableType, string Name);
+
+        static ShaderTextureNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<ShaderTextureNode>));
+        }
+
+        public ShaderTextureNode()
+        {
+            Name = "Shader Texture";
+            _group = new EndpointGroup("Shader Texture");
+            Inputs.Add(Source = new CodeGenInputViewModel<ITypedExpression<string>>(EPortType.String)
+            {
+                Name = "Source",
+                Group = _group,
+                Editor = SourceEditor
+            });
+
+            var dxHost = Locator.Current.GetService<DxHost>()!;
+            Source.ValueChanged
+                .ObserveOn(dxHost.RenderDispatcher)
+                .Subscribe(_ =>
+                {
+                    _resourcesCreated = false;
+                    UpdateFrame(dxHost.Device, dxHost.Device.ImmediateContext);
+                });
+        }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new ShaderTextureModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var shaderTexture = (ShaderTextureModel)model;
+            shaderTexture.Source = SourceEditor.CreateModel();
+            shaderTexture.InputValues = _customInputs
+                .Where(i => i.Item1.Editor != null)
+                .Select(i => new LiteralModelEntry()
+                {
+                    Key = i.Item1.Name,
+                    Literal = CreateLiteralModel((dynamic)i.Item1.Editor)
+                })
+                .ToArray();
+        }
+
+        private TModel CreateLiteralModel<T, TValue, TModel>(ExpressionEditorBaseViewModel<T, TValue, TModel> editor) where TValue : LiteralValueBase<T>, new() where TModel : LiteralModelBase<T>, new()
+        {
+            return editor.CreateModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var shaderTexture = (ShaderTextureModel)model;
+            SourceEditor.LoadModel(shaderTexture.Source);
+            foreach (var inputValue in shaderTexture.InputValues)
+            {
+                _inputValues[inputValue.Key] = inputValue.Literal;
+            }
+            
+            var dxHost = Locator.Current.GetService<DxHost>()!;
+            _resourcesCreated = true;
+            CreateDeviceResources(dxHost.Device);
+        }
+
+        protected override void CreateDeviceResources(Device device)
+        {
+            foreach (var cb in _constantBuffers)
+                cb.Dispose();
+
+            _constantBuffers.Clear();
+
+            var flags = ShaderFlags.None;
+#if DEBUG
+            flags |= ShaderFlags.Debug;
+#endif
+            var errors = new List<string>();
+            var shader = Source.Value.Evaluate();
+            if (string.IsNullOrEmpty(shader))
+            {
+                errors.Add("Shader is empty");
+            }
+            else
+            {
+                try
+                {
+                    var compilationResult = ShaderBytecode.Compile(shader, "main", "cs_5_0", flags);
+                    if (compilationResult.HasErrors)
+                    {
+                        errors.Add(compilationResult.Message);
+                    }
+                    else
+                    {
+                        _byteCode = compilationResult.Bytecode.Data;
+                        var reflection = new ShaderReflection(_byteCode);
+                        var newInputs = new List<InputDesc>();
+                        var newOutputs = new List<InputDesc>();
+                        for (int i = 0; i < reflection.Description.BoundResources; ++i)
+                        {
+                            var resBindingDesc = reflection.GetResourceBindingDescription(i);
+                            switch (resBindingDesc.Type)
+                            {
+                                case ShaderInputType.ConstantBuffer:
+                                {
+                                    var cb = reflection.GetConstantBuffer(resBindingDesc.Name);
+                                    var cbIndex = resBindingDesc.BindPoint;
+                                    var cbSize = cb.Description.Size;
+                                    var bufferDesc = new BufferDescription(cbSize, ResourceUsage.Dynamic, BindFlags.ConstantBuffer, CpuAccessFlags.Write, ResourceOptionFlags.None, 0);
+                                    _constantBuffers.Add(new Buffer(device, bufferDesc));
+                                    for (int j = 0; j < cb.Description.VariableCount; ++j)
+                                    {
+                                        var variable = cb.GetVariable(j);
+                                        var varTypeDesc = variable.GetVariableType()
+                                            .Description;
+                                        var type = varTypeDesc.Type switch
+                                        {
+                                            ShaderVariableType.Float => typeof(float),
+                                            ShaderVariableType.Int   => typeof(int),
+                                            ShaderVariableType.Bool  => typeof(bool),
+                                            _                        => null
+                                        };
+                                        if (type == null)
+                                        {
+                                            errors.Add($"Constant buffer {resBindingDesc.Name} at slot {cbIndex} has a variable {variable.Description.Name} with unsupported type {varTypeDesc.Type}");
+                                            continue;
+                                        }
+
+                                        for (int k = 0; k < varTypeDesc.ColumnCount; ++k)
+                                        {
+                                            var suffix = "" + 'X' + k;
+                                            var inputName = varTypeDesc.ColumnCount == 1 ? variable.Description.Name : $"{variable.Description.Name}.{suffix}";
+                                            newInputs.Add(new(cbIndex, variable.Description.StartOffset + k * variable.Description.Size, type, inputName));
+                                        }
+                                    }
+
+                                    break;
+                                }
+                                case ShaderInputType.Texture:
+                                {
+                                    var texName = resBindingDesc.Name;
+                                    newInputs.Add(new(-1, resBindingDesc.BindPoint, typeof(TextureValue), texName));
+                                    break;
+                                }
+                                case ShaderInputType.Sampler:
+                                {
+                                    var texName = resBindingDesc.Name;
+                                    newInputs.Add(new(-1, resBindingDesc.BindPoint, typeof(SamplerLiteralValue), texName));
+                                    break;
+                                }
+                                case ShaderInputType.UnorderedAccessViewRWTyped:
+                                {
+                                    var texName = resBindingDesc.Name;
+                                    if (resBindingDesc.Dimension != ShaderResourceViewDimension.Texture2D)
+                                    {
+                                        errors.Add($"UAV {texName} at slot {resBindingDesc.BindPoint} has unsupported dimension {resBindingDesc.Dimension}");
+                                        break;
+                                    }
+
+                                    newOutputs.Add(new(-1, resBindingDesc.BindPoint, typeof(TextureValue), texName));
+                                    break;
+                                }
+                                default:
+                                {
+                                    errors.Add($"Resource {resBindingDesc.Name} at slot {resBindingDesc.BindPoint} has unsupported type {resBindingDesc.Type}");
+                                    break;
+                                }
+                            }
+                        }
+
+                        if (newOutputs.Count == 0)
+                        {
+                            errors.Add("The shader doesn't contain any UAV suitable for the texture output");
+                        }
+                        
+                        Inputs.Edit(inputs =>
+                        {
+                            var maxSamplerStateIndex = 0;
+                            for (var i = _customInputs.Count - 1; i >= 0; --i)
+                            {
+                                var existingInput = _customInputs[i];
+                                if (newInputs.All(inputDesc => inputDesc.Name != existingInput.Item1.Name))
+                                {
+                                    inputs.Remove(existingInput.Item1);
+                                    _customInputs.RemoveAt(i);
+                                }
+                            }
+
+                            foreach (var newInputDesc in newInputs)
+                            {
+                                if (_customInputs.Any(i => i.Item2 == newInputDesc))
+                                    continue;
+
+                                NodeInputViewModel newInput;
+                                if (newInputDesc.VariableType == typeof(float))
+                                {
+                                    newInput = new CodeGenInputViewModel<ITypedExpression<float>>(EPortType.Float)
+                                    {
+                                        Name = newInputDesc.Name,
+                                        Group = _group,
+                                        Editor = new FloatExpressionEditorViewModel { MaxValue = 1 }
+                                    };
+                                    if (_inputValues.TryGetValue(newInputDesc.Name, out var inputValue) && inputValue is FloatLiteralModel model)
+                                        ((FloatExpressionEditorViewModel)newInput.Editor).LoadModel(model);
+                                }
+                                else if (newInputDesc.VariableType == typeof(int))
+                                {
+                                    newInput = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+                                    {
+                                        Name = newInputDesc.Name,
+                                        Group = _group,
+                                        Editor = new IntegerExpressionEditorViewModel { MaxValue = 100 }
+                                    };
+                                    if (_inputValues.TryGetValue(newInputDesc.Name, out var inputValue) && inputValue is IntLiteralModel model)
+                                        ((IntegerExpressionEditorViewModel)newInput.Editor).LoadModel(model);
+                                }
+                                else if (newInputDesc.VariableType == typeof(bool))
+                                {
+                                    newInput = new CodeGenInputViewModel<ITypedExpression<bool>>(EPortType.Boolean)
+                                    {
+                                        Name = newInputDesc.Name,
+                                        Group = _group,
+                                        Editor = new BooleanExpressionEditorViewModel()
+                                    };
+                                    if (_inputValues.TryGetValue(newInputDesc.Name, out var inputValue) && inputValue is BooleanLiteralModel model)
+                                        ((BooleanExpressionEditorViewModel)newInput.Editor).LoadModel(model);
+                                }
+                                else if (newInputDesc.VariableType == typeof(TextureValue))
+                                {
+                                    newInput = new CodeGenInputViewModel<TextureValue>(EPortType.Texture) { Name = newInputDesc.Name };
+                                    if (newInputDesc.Offset == 0)
+                                    {
+                                        var inputObservable = ((CodeGenInputViewModel<TextureValue>)newInput).ValueChanged;
+                                        WidthEditor.InputValueProvider = inputObservable.Select(input => input?.Width ?? 0);
+                                        HeightEditor.InputValueProvider = inputObservable.Select(input => input?.Height ?? 0);
+                                    }
+                                }
+                                else if (newInputDesc.VariableType == typeof(SamplerLiteralValue))
+                                {
+                                    maxSamplerStateIndex = Math.Max(maxSamplerStateIndex, newInputDesc.Offset);
+                                    newInput = new CodeGenInputViewModel<ITypedExpression<SamplerDesc>>(EPortType.None)
+                                    {
+                                        Name = newInputDesc.Name,
+                                        Group = _group,
+                                        Editor = new SamplerEditorViewModel { CustomValue = new SamplerDesc() }
+                                    };
+                                    if (_inputValues.TryGetValue(newInputDesc.Name, out var inputValue) && inputValue is SamplerLiteralModel model)
+                                        ((SamplerEditorViewModel)newInput.Editor).LoadModel(model);
+                                }
+                                else
+                                {
+                                    continue;
+                                }
+
+                                _customInputs.Add((newInput, newInputDesc));
+                                inputs.Add(newInput);
+                            }
+                        });
+
+                        Outputs.Edit(outputs =>
+                        {
+                            if (outputs.Count > newOutputs.Count)
+                            {
+                                if (newOutputs.Count == 0)
+                                {
+                                    if (outputs.Count > 1)
+                                        outputs.RemoveRange(1, outputs.Count - 1);
+                                    outputs[0]
+                                        .Name = "Output";
+                                }
+                                else
+                                {
+                                    outputs.RemoveRange(newOutputs.Count, outputs.Count - newOutputs.Count);
+                                }
+                            }
+
+                            var outputIndex = 0;
+                            if (outputIndex < newOutputs.Count)
+                                for (; outputIndex < outputs.Count; ++outputIndex)
+                                    outputs[outputIndex]
+                                        .Name = newOutputs[outputIndex]
+                                        .Name;
+
+                            for (; outputIndex < newOutputs.Count; ++outputIndex)
+                            {
+                                var newOutputDesc = newOutputs[outputIndex];
+                                NodeOutputViewModel newOutput;
+                                if (newOutputDesc.VariableType == typeof(TextureValue))
+                                    newOutput = new CodeGenOutputViewModel<TextureValue>(EPortType.Texture) { Name = newOutputDesc.Name };
+                                else
+                                    continue;
+
+                                outputs.Add(newOutput);
+                            }
+
+                            _customOutputs = new TextureValue[outputs.Count];
+                        });
+                    }
+                }
+                catch (CompilationException e)
+                {
+                    errors.Add(e.Message);
+                }
+            }
+            
+            _cs?.Dispose();
+            _cs = errors.Count == 0 ? new ComputeShader(device, _byteCode) : null;
+
+            Errors.Edit(e =>
+            {
+                e.Clear();
+                e.AddRange(errors);
+            });
+        }
+
+        protected override unsafe void UpdateFrame(Device device, DeviceContext context)
+        {
+            if (!_resourcesCreated)
+            {
+                _resourcesCreated = true;
+                var dxHost = Locator.Current.GetService<DxHost>()!;
+                dxHost.MainDispatcher!.Invoke(() => CreateDeviceResources(device));
+            }
+
+            EnsureBuffers(device);
+            if (_customOutputs == null || _cs == null)
+                return;
+
+            _customOutputs[0] = _output;
+            for (int i = 1; i < Outputs.Count; ++i)
+            {
+                EnsureTexture(device, ref _customOutputs![i]);
+            }
+
+            var cbData = _constantBuffers.Select(cb =>
+            {
+                context.MapSubresource(cb, 0, MapMode.WriteDiscard, MapFlags.None, out var stream);
+                return stream.DataPointer;
+            }).ToArray();
+
+            int maxSrvIndex = 0;
+            foreach (var input in _customInputs)
+            {
+                var desc = input.Item2;
+                if (desc.ConstantBufferIndex >= 0)
+                {
+                    var dataPtr = cbData[desc.ConstantBufferIndex] + desc.Offset;
+                    if (desc.VariableType == typeof(float))
+                    {
+                        _inputValues[input.Item1.Name] = ((FloatExpressionEditorViewModel)input.Item1.Editor).CreateModel();
+                        *(float*)dataPtr = ((CodeGenInputViewModel<ITypedExpression<float>>)input.Item1).Value.Evaluate();
+                    }
+                    else if (desc.VariableType == typeof(int))
+                    {
+                        _inputValues[input.Item1.Name] = ((IntegerExpressionEditorViewModel)input.Item1.Editor).CreateModel();
+                        *(int*)dataPtr = ((CodeGenInputViewModel<ITypedExpression<int>>)input.Item1).Value.Evaluate();
+                    }
+                    else if (desc.VariableType == typeof(bool))
+                    {
+                        _inputValues[input.Item1.Name] = ((BooleanExpressionEditorViewModel)input.Item1.Editor).CreateModel();
+                        *(bool*)dataPtr = ((CodeGenInputViewModel<ITypedExpression<bool>>)input.Item1).Value.Evaluate();
+                    }
+                }
+                else
+                {
+                    if (desc.VariableType == typeof(TextureValue))
+                    {
+                        maxSrvIndex = Math.Max(maxSrvIndex, desc.Offset);
+                        context.ComputeShader.SetShaderResource(desc.Offset, ((CodeGenInputViewModel<TextureValue>)input.Item1).Value?.ShaderResourceView);
+                    }
+                    else if (desc.VariableType == typeof(SamplerLiteralValue))
+                    {
+                        _inputValues[input.Item1.Name] = ((SamplerEditorViewModel)input.Item1.Editor).CreateModel();
+                        var samplerValue = (SamplerLiteralValue)((CodeGenInputViewModel<ITypedExpression<SamplerDesc>>)input.Item1).Value;
+                        EnsureSamplerState(device, ref samplerValue);
+                        context.ComputeShader.SetSampler(desc.Offset, samplerValue.SamplerState);
+                    }
+                }
+            }
+
+            for (var i = 0; i < _customOutputs!.Length; i++)
+            {
+                var output = _customOutputs![i];
+                context.ComputeShader.SetUnorderedAccessView(i, output.UnorderedAccessView);
+            }
+
+            for (int i = 0; i < _constantBuffers.Count; ++i)
+            {
+                context.UnmapSubresource(_constantBuffers[i], 0);
+                context.ComputeShader.SetConstantBuffer(i, _constantBuffers[i]);
+            }
+
+            context.ComputeShader.SetShader(_cs, null, 0);
+            context.Dispatch(_texDesc.Width / 16, _texDesc.Height / 16, 1);
+
+            for (var i = 0; i < _customOutputs!.Length; i++)
+            {
+                context.ComputeShader.SetUnorderedAccessView(i, null);
+            }
+
+            for (var i = 0; i <= maxSrvIndex; i++)
+            {
+                context.ComputeShader.SetShaderResource(i, null);
+            }
+        }
+
+        private void EnsureSamplerState(Device device, ref SamplerLiteralValue samplerLiteralValue)
+        {
+            if (samplerLiteralValue.SamplerState == null || samplerLiteralValue.SamplerState.Description.AddressU != samplerLiteralValue.Value.Address || samplerLiteralValue.SamplerState.Description.Filter != samplerLiteralValue.Value.Filter)
+            {
+                var desc = SamplerStateDescription.Default();
+                desc.AddressU = desc.AddressV = desc.AddressW = samplerLiteralValue.Value.Address;
+                desc.Filter = samplerLiteralValue.Value.Filter;
+                samplerLiteralValue.SamplerState = new SamplerState(device, desc);
+            }
+        }
+
+        public ISourceList<string> Errors { get; } = new SourceList<string>();
+        public CodeGenInputViewModel<ITypedExpression<string>> Source { get; }
+
+        public StringExpressionEditorViewModel SourceEditor { get; } = new()
+        {
+            CustomValue = @"
+cbuffer cb
+{
+    float f;
+}
+Texture2D t0;
+SamplerState ss;
+RWTexture2D<float4> o;
+[numthreads(16,16,1)]
+void main(uint3 i : SV_DispatchThreadID)
+{
+    float2 s;
+    o.GetDimensions(s.x, s.y);
+    float2 uv = i.xy/s;
+    float4 c = t0.SampleLevel(ss, uv, 0);
+    o[i.xy] = float4(c.xyz, 1);
+}"
+        };
+    }
+}

intromat/Intromat/Nodes/Textures/Shape2DGrayscaleModel.cs

@@ -0,0 +1,34 @@
+using System.Xml.Serialization;
+using Intromat.Nodes.Code;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Textures
+{
+    [XmlRoot("Shape2DGrayscale", Namespace = _namespace)]
+    public class Shape2DGrayscaleModel : DxTextureModelBase
+    {
+        public enum EPattern
+        {
+            Square
+        }
+
+        public IntLiteralModel Tiling { get; set; } = default!;
+
+        public EPattern Pattern { get; set; }
+
+        public FloatLiteralModel Scale { get; set; } = default!;
+
+        public FloatLiteralModel SizeX { get; set; } = default!;
+
+        public FloatLiteralModel SizeY { get; set; } = default!;
+
+        public FloatLiteralModel Angle { get; set; } = default!;
+
+        public BooleanLiteralModel Rotate45 { get; set; } = default!;
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new Shape2DGrayscaleNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/Shape2DGrayscaleNode.cs

@@ -0,0 +1,213 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using SharpDX.D3DCompiler;
+using SharpDX.Direct3D11;
+using Splat;
+using Xceed.Wpf.Toolkit.PropertyGrid.Attributes;
+using Buffer = SharpDX.Direct3D11.Buffer;
+
+namespace Intromat.Nodes.Textures
+{
+    [CategoryOrder("Shape 2D", 1)]
+    public class Shape2DGrayscaleNode : DxTextureNodeBase
+    {
+        private Buffer? _constantBuffer;
+        private ComputeShader? _cs;
+        private const string _computeShader = @"cbuffer cb
+        {
+            int t;
+            int p;
+            float s;
+            float sx;
+            float sy;
+            float a;
+            int r;
+        }
+
+        float Square(float2 uv)
+        {
+            return step(uv.x, sx) * step(-sx, uv.x) * step(uv.y, sy) * step(-sy, uv.y);
+        }
+
+        RWTexture2D<float> o;
+        [numthreads(16,16,1)]
+        void main(in uint3 i : SV_DispatchThreadID)
+        { 
+            float sa, ca;
+            sincos(a, sa, ca);
+            float2 dim;
+            o.GetDimensions(dim.x, dim.y);
+            float2 uv = i.xy / dim;
+            if (r > 0)
+            {
+                float f = sqrt(2)/2;
+                uv = uv * 2 - 1;
+                uv = mul(uv, float2x2(f, -f, f, f));
+                uv = uv * .5 + .5;
+            }
+            uv *= t;
+            uv = frac(uv);
+            uv = uv * 2 - 1;
+            uv /= s;
+            uv = mul(uv, float2x2(ca, -sa, sa, ca));
+            float z = 0;
+            switch (p)
+            {
+                case 0: z = Square(uv); break;
+            }
+            o[i.xy] = z;
+        }";
+
+        static Shape2DGrayscaleNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<Shape2DGrayscaleNode>));
+        }
+
+        public Shape2DGrayscaleNode()
+        {
+            Name = "Shape 2D";
+            var group = new EndpointGroup("Shape 2D");
+            Inputs.Add(Tiling = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Tiling",
+                Group = group,
+                Editor = TilingEditor
+            });
+            Inputs.Add(Pattern = new CodeGenInputViewModel<int>(EPortType.None)
+            {
+                Name = "Pattern",
+                Group = group,
+                Editor = PatternEditor
+            });
+            Inputs.Add(Scale = new CodeGenInputViewModel<ITypedExpression<float>>(EPortType.Float)
+            {
+                Name = "Scale",
+                Group = group,
+                Editor = ScaleEditor
+            });
+            Inputs.Add(SizeX = new CodeGenInputViewModel<ITypedExpression<float>>(EPortType.Float)
+            {
+                Name = "Size X",
+                Group = group,
+                Editor = SizeXEditor
+            });
+            Inputs.Add(SizeY = new CodeGenInputViewModel<ITypedExpression<float>>(EPortType.Float)
+            {
+                Name = "Size Y",
+                Group = group,
+                Editor = SizeYEditor
+            });
+            Inputs.Add(Angle = new CodeGenInputViewModel<ITypedExpression<float>>(EPortType.Float)
+            {
+                Name = "Angle",
+                Group = group,
+                Editor = AngleEditor
+            });
+            Inputs.Add(Rotate45 = new CodeGenInputViewModel<ITypedExpression<bool>>(EPortType.Float)
+            {
+                Name = "Rotate 45°",
+                Group = group,
+                Editor = Rotate45Editor
+            });
+        }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new Shape2DGrayscaleModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var shape2D = (Shape2DGrayscaleModel)model;
+            shape2D.Tiling = TilingEditor.CreateModel();
+            shape2D.Pattern = (Shape2DGrayscaleModel.EPattern)PatternEditor.Value;
+            shape2D.Scale = ScaleEditor.CreateModel();
+            shape2D.SizeX = SizeXEditor.CreateModel();
+            shape2D.SizeY = SizeYEditor.CreateModel();
+            shape2D.Angle = AngleEditor.CreateModel();
+            shape2D.Rotate45 = Rotate45Editor.CreateModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var shape2D = (Shape2DGrayscaleModel)model;
+            TilingEditor.LoadModel(shape2D.Tiling);
+            PatternEditor.Value = (int)shape2D.Pattern;
+            ScaleEditor.LoadModel(shape2D.Scale);
+            SizeXEditor.LoadModel(shape2D.SizeX);
+            SizeYEditor.LoadModel(shape2D.SizeY);
+            AngleEditor.LoadModel(shape2D.Angle);
+            Rotate45Editor.LoadModel(shape2D.Rotate45);
+        }
+
+        protected override unsafe void UpdateFrame(Device device, DeviceContext context)
+        {
+            base.UpdateFrame(device, context);
+
+            context.MapSubresource(_constantBuffer, 0, MapMode.WriteDiscard, MapFlags.None, out var stream);
+            var floats = new Span<float>((void*)stream.DataPointer, 8);
+            var ints = new Span<int>((void*)stream.DataPointer, 8);
+            ints[0] = Tiling.Value.Evaluate();
+            ints[1] = Pattern.Value;
+            floats[2] = Scale.Value.Evaluate();
+            floats[3] = SizeX.Value.Evaluate();
+            floats[4] = SizeY.Value.Evaluate();
+            floats[5] = Angle.Value.Evaluate();
+            ints[6] = Rotate45.Value.Evaluate() ? 1 : 0;
+            context.UnmapSubresource(_constantBuffer, 0);
+
+            context.ComputeShader.SetConstantBuffer(0, _constantBuffer);
+            context.ComputeShader.SetShader(_cs, null, 0);
+            context.ComputeShader.SetUnorderedAccessView(0, _output!.UnorderedAccessView);
+            context.Dispatch(_texDesc.Width / 16, _texDesc.Height / 16, 1);
+            context.ComputeShader.SetUnorderedAccessView(0, null);
+        }
+
+        [MemberNotNull(nameof(_constantBuffer))]
+        [MemberNotNull(nameof(_cs))]
+        protected override void CreateDeviceResources(Device device)
+        {
+            base.CreateDeviceResources(device);
+
+            var bufferDesc = new BufferDescription(32, ResourceUsage.Dynamic, BindFlags.ConstantBuffer, CpuAccessFlags.Write, ResourceOptionFlags.None, 0);
+            _constantBuffer = new Buffer(device, bufferDesc);
+            var flags = ShaderFlags.None;
+#if DEBUG
+            flags |= ShaderFlags.Debug;
+#endif
+            _cs = new ComputeShader(device, ShaderBytecode.Compile(_computeShader, "main", "cs_5_0", flags).Bytecode.Data);
+        }
+
+        public IntegerExpressionEditorViewModel TilingEditor { get; } = new() { CustomValue = 1, MinValue = 1, MaxValue = 16 };
+        public ValueNodeInputViewModel<ITypedExpression<int>> Tiling { get; }
+
+        public EnumEditorViewModel PatternEditor { get; } = new(typeof(Shape2DGrayscaleModel.EPattern));
+        public ValueNodeInputViewModel<int> Pattern { get; }
+
+        public FloatExpressionEditorViewModel ScaleEditor { get; } = new() { CustomValue = 1, MaxValue = 1 };
+        public ValueNodeInputViewModel<ITypedExpression<float>> Scale { get; }
+
+        public FloatExpressionEditorViewModel SizeXEditor { get; } = new() { CustomValue = .5f, MaxValue = 1 };
+        public ValueNodeInputViewModel<ITypedExpression<float>> SizeX { get; }
+
+        public FloatExpressionEditorViewModel SizeYEditor { get; } = new() { CustomValue = .5f, MaxValue = 1 };
+        public ValueNodeInputViewModel<ITypedExpression<float>> SizeY { get; }
+
+        public FloatExpressionEditorViewModel AngleEditor { get; } = new() { MaxValue = (float)(2 * Math.PI) };
+        public ValueNodeInputViewModel<ITypedExpression<float>> Angle { get; }
+
+        public BooleanExpressionEditorViewModel Rotate45Editor { get; } = new();
+        public ValueNodeInputViewModel<ITypedExpression<bool>> Rotate45 { get; }
+    }
+}

intromat/Intromat/Nodes/Textures/SolidColorModel.cs

@@ -0,0 +1,19 @@
+using System.Xml.Serialization;
+using Intromat.Nodes.Code;
+using Intromat.ViewModels;
+
+namespace Intromat.Nodes.Textures
+{
+    [XmlRoot("SolidColor", Namespace = _namespace)]
+    public sealed class SolidColorModel : DxTextureModelBase
+    {
+        public IntLiteralModel Red { get; set; } = null!;
+        public IntLiteralModel Green { get; set; } = null!;
+        public IntLiteralModel Blue { get; set; } = null!;
+
+        public override CodeGenNodeViewModel CreateViewModel()
+        {
+            return new SolidColorNode();
+        }
+    }
+}

intromat/Intromat/Nodes/Textures/SolidColorNode.cs

@@ -0,0 +1,90 @@
+using DynamicData;
+using Intromat.Model.Compiler;
+using Intromat.PersistentModel;
+using Intromat.ViewModels;
+using Intromat.ViewModels.Editors;
+using Intromat.Views;
+using NodeNetwork.Toolkit.ValueNode;
+using NodeNetwork.ViewModels;
+using ReactiveUI;
+using SharpDX.Direct3D11;
+using SharpDX.Mathematics.Interop;
+using Splat;
+using Xceed.Wpf.Toolkit.PropertyGrid.Attributes;
+
+namespace Intromat.Nodes.Textures
+{
+    [CategoryOrder("Solid Color", 1)]
+    public class SolidColorNode : DxTextureNodeBase
+    {
+        static SolidColorNode()
+        {
+            Locator.CurrentMutable.Register(() => new CodeGenNodeView(), typeof(IViewFor<SolidColorNode>));
+        }
+
+        public SolidColorNode()
+        {
+            Name = "Solid Color";
+            var group = new EndpointGroup("SolidColor");
+            Inputs.Add(Red = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Input",
+                Group = group,
+                Editor = RedEditor
+            });
+            Inputs.Add(Green = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Green",
+                Group = group,
+                Editor = GreenEditor
+            });
+            Inputs.Add(Blue = new CodeGenInputViewModel<ITypedExpression<int>>(EPortType.Integer)
+            {
+                Name = "Blue",
+                Group = group,
+                Editor = BlueEditor
+            });
+        }
+
+        public override NodeModelBase CreateModel()
+        {
+            return new SolidColorModel();
+        }
+
+        public override void SaveModel(NodeModelBase model)
+        {
+            base.SaveModel(model);
+            var solidColor = (SolidColorModel)model;
+            solidColor.Red = RedEditor.CreateModel();
+            solidColor.Green = GreenEditor.CreateModel();
+            solidColor.Blue = BlueEditor.CreateModel();
+        }
+
+        public override void LoadModel(NodeModelBase model)
+        {
+            base.LoadModel(model);
+            var solidColor = (SolidColorModel)model;
+            RedEditor.LoadModel(solidColor.Red);
+            GreenEditor.LoadModel(solidColor.Green);
+            BlueEditor.LoadModel(solidColor.Blue);
+        }
+
+        protected override void UpdateFrame(Device device, DeviceContext context)
+        {
+            base.UpdateFrame(device, context);
+            float r = Red.Value.Evaluate() / 255.0f;
+            float g = Green.Value.Evaluate() / 255.0f;
+            float b = Blue.Value.Evaluate() / 255.0f;
+            context.ClearUnorderedAccessView(_output!.UnorderedAccessView, new RawVector4(r, g, b, 1.0f));
+        }
+
+        public IntegerExpressionEditorViewModel RedEditor { get; } = new() { MinValue = 0, MaxValue = 255};
+        public ValueNodeInputViewModel<ITypedExpression<int>> Red { get; }
+
+        public IntegerExpressionEditorViewModel GreenEditor { get; } = new() { MinValue = 0, MaxValue = 255};
+        public ValueNodeInputViewModel<ITypedExpression<int>> Green { get; }
+
+        public IntegerExpressionEditorViewModel BlueEditor { get; } = new() { MinValue = 0, MaxValue = 255};
+        public ValueNodeInputViewModel<ITypedExpression<int>> Blue { get; }
+    }
+}