Added initial project.

.gitignore

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+Binaries/*
+Intermediate/*
+Source/ThirdParty/VTK/Public/*

Source/ThirdParty/VTK/VTK.Build.cs

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+using System.IO;
+using UnrealBuildTool;
+
+public class VTK : ModuleRules
+{
+  public VTK(ReadOnlyTargetRules target) : base(target)
+  {
+    Type = ModuleType.External;
+
+    PublicIncludePaths.Add(Path.Combine(PluginDirectory, "Source", "ThirdParty", "VTK", "Public"));
+
+    if      (target.Platform == UnrealTargetPlatform.Win64)
+    {
+      foreach (var value in Directory.EnumerateFiles(Path.Combine(PluginDirectory, "Intermediate", "ThirdParty", "VTK", "Win64"), "*.lib"  , SearchOption.AllDirectories))
+      {
+        PublicAdditionalLibraries.Add(value);
+      }
+      foreach (var value in Directory.EnumerateFiles(Path.Combine(PluginDirectory, "Binaries"    , "ThirdParty", "VTK", "Win64"), "*.dll"  , SearchOption.AllDirectories))
+      {
+        PublicDelayLoadDLLs      .Add(value);
+        RuntimeDependencies      .Add(value);
+      }
+    }
+    else if (target.Platform == UnrealTargetPlatform.Mac  )
+    {
+      foreach (var value in Directory.EnumerateFiles(Path.Combine(PluginDirectory, "Intermediate", "ThirdParty", "VTK", "Mac"  ), "*.dylib", SearchOption.AllDirectories))
+      {
+        PublicDelayLoadDLLs      .Add(value);
+        RuntimeDependencies      .Add(value);
+      }
+    }
+    else if (target.Platform == UnrealTargetPlatform.Linux)
+    {
+      foreach (var value in Directory.EnumerateFiles(Path.Combine(PluginDirectory, "Intermediate", "ThirdParty", "VTK", "Linux"), "*.so"   , SearchOption.AllDirectories))
+      {
+        PublicAdditionalLibraries.Add(value);
+        PublicDelayLoadDLLs      .Add(value);
+        RuntimeDependencies      .Add(value);
+      }
+    }
+  }
+}

Source/VTKPlugin/Private/VTKPlugin.cpp

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+#include "VTKPlugin.h"
+#include "Core.h"
+#include "Modules/ModuleManager.h"
+#include "Interfaces/IPluginManager.h"
+
+#include "vtkPolyData.h"
+
+#define LOCTEXT_NAMESPACE "FVTKPluginModule"
+
+void FVTKPluginModule::StartupModule ()
+{
+#if PLATFORM_WINDOWS
+  const FString BaseDir         = IPluginManager::Get().FindPlugin("VTKPlugin")->GetBaseDir();
+  const FString AbsoluteBaseDir = IFileManager  ::Get().ConvertToAbsolutePathForExternalAppForRead(*BaseDir);
+  const FString VTKDir          = FPaths::Combine(*AbsoluteBaseDir, TEXT("/Binaries/ThirdParty/VTK/Win64/"));
+  const FString Filter          = FPaths::Combine(VTKDir, TEXT("*.dll"));
+
+	TArray<FString> Files;
+  IFileManager::Get().FindFiles(Files, *Filter, true, false);
+  while (Files.Num() != DynamicLinkLibraries.Num()) // Since the order of DLLs are unknown, try repeatedly until all are loaded.
+  {
+    for (auto& File : Files)
+    {
+      const FString Path = FPaths::Combine(VTKDir, File);
+      auto          Dll  = FPlatformProcess::GetDllHandle(*Path);
+      if (Dll && !DynamicLinkLibraries.Contains(Dll))
+        DynamicLinkLibraries.Add(Dll);
+    }
+  }
+#endif
+}
+void FVTKPluginModule::ShutdownModule()
+{
+  for (const auto& Library : DynamicLinkLibraries)
+    FPlatformProcess::FreeDllHandle(Library);
+}
+
+#undef LOCTEXT_NAMESPACE
+
+IMPLEMENT_MODULE(FVTKPluginModule, VTKPlugin)

Source/VTKPlugin/Public/VTKPlugin.h

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+#pragma once
+
+#include "Modules/ModuleManager.h"
+#include "Runtime/Core/Public/Containers/Array.h"
+
+class FVTKPluginModule : public IModuleInterface
+{
+public:
+  virtual void StartupModule () override;
+  virtual void ShutdownModule() override;
+
+private:
+  TArray<void*> DynamicLinkLibraries;
+};

Source/VTKPlugin/VTKPlugin.Build.cs

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+using UnrealBuildTool;
+
+public class VTKPlugin : ModuleRules
+{
+  public VTKPlugin(ReadOnlyTargetRules target) : base(target)
+  {
+    PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
+
+    PublicDependencyModuleNames.AddRange(new[] {"Core", "Projects", "VTK"});
+  }
+}

VTKPlugin.uplugin

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+{
+  "FileVersion"          : 3,
+  "Version"              : 1,
+  "VersionName"          : "1.0",
+  "FriendlyName"         : "VTKPlugin",
+  "Description"          : "A plugin that downloads, builds, installs and links VTK to UE.",
+  "Category"             : "Other",
+  "CreatedBy"            : "acdemiralp",
+  "CreatedByURL"         : "",
+  "DocsURL"              : "",
+  "MarketplaceURL"       : "",
+  "SupportURL"           : "",
+  "CanContainContent"    : true ,
+  "IsBetaVersion"        : false,
+  "IsExperimentalVersion": false,
+  "Installed"            : false,
+  "Modules": 
+  [
+    {
+      "Name"        : "VTKPlugin",
+      "Type"        : "Runtime"  ,
+      "LoadingPhase": "Default"
+    }
+  ]
+}

install_vtk.bat

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+@echo off
+setlocal enabledelayedexpansion
+
+set INITIAL_DIR=%CD%
+cd /d "%~dp0"
+
+mkdir Temporary
+cd    Temporary
+
+curl -L "https://github.com/Kitware/CMake/releases/download/v3.22.1/cmake-3.22.1-windows-x86_64.zip" -o download.zip
+tar -xf download.zip
+del download.zip
+move cmake-3.22.1-windows-x86_64 CMake
+
+curl -L "https://github.com/Kitware/VTK/archive/refs/tags/v9.1.0.zip" -o download.zip
+tar -xf download.zip
+del download.zip
+move VTK-9.1.0 VTK
+
+cd    VTK
+mkdir Build
+mkdir Install
+cd    Build
+..\..\CMake\bin\cmake .. -DVTK_GROUP_ENABLE_Rendering=NO
+..\..\CMake\bin\cmake --build   . --config Release --parallel 32
+..\..\CMake\bin\cmake --install . --prefix ..\Install
+
+cd ..
+xcopy /s Install\include\vtk-9.1 ..\..\Source\ThirdParty\VTK\Public\
+xcopy /s Install\lib             ..\..\Intermediate\ThirdParty\VTK\Win64\
+xcopy /s Install\bin             ..\..\Binaries\ThirdParty\VTK\Win64\    
+
+cd ..\..
+rmdir /s /q Temporary
+
+cd /d %INITIAL_DIR%

install_vtk.sh

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+#!/bin/bash
+
+
+INITIAL_DIR=$PWD
+cd "${0%/*}"
+
+mkdir Temporary
+cd    Temporary
+
+wget -O download.tar.gz "https://github.com/Kitware/CMake/releases/download/v3.22.1/cmake-3.22.1-linux-x86_64.tar.gz"
+tar -xf download.tar.gz
+rm download.tar.gz
+mv cmake-3.22.1-linux-x86_64 CMake
+
+wget -O download.tar.gz "https://github.com/Kitware/VTK/archive/refs/tags/v9.1.0.tar.gz"
+tar -xf download.tar.gz
+rm download.tar.gz
+mv VTK-9.1.0 VTK
+
+cd    VTK
+mkdir Build
+mkdir Install
+cd    Build
+../../CMake/bin/cmake .. -DVTK_GROUP_ENABLE_Rendering=NO
+../../CMake/bin/cmake --build   . --config Release --parallel 32
+../../CMake/bin/cmake --install . --prefix ../Install
+
+cd ..
+mkdir -p ../../Source/ThirdParty/VTK/Public      && cp -a ./Install/include/vtk-9.1/. "$_"
+mkdir -p ../../Intermediate/ThirdParty/VTK/Linux && cp -a ./Install/lib/.             "$_"
+mkdir -p ../../Binaries/ThirdParty/VTK/Linux     && cp -a ./Install/bin/.             "$_"
+
+cd ../..
+rm -rf Temporary
+
+cd %INITIAL_DIR%