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Plugins/VRM4U/Source/VRM4ULoader/Private/VRM4ULoaderLog.h

@@ -0,0 +1,14 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+//#include "VRMImporterModule.h"
+
+DECLARE_LOG_CATEGORY_EXTERN(LogVRM4ULoader, Verbose, All);
+
+#define SPRITER_IMPORT_ERROR(FormatString, ...) \
+	if (!bSilent) { UE_LOG(LogVRMLoader, Warning, FormatString, __VA_ARGS__); }
+#define SPRITER_IMPORT_WARNING(FormatString, ...) \
+	if (!bSilent) { UE_LOG(LogVRMLoader, Warning, FormatString, __VA_ARGS__); }
+

Plugins/VRM4U/Source/VRM4ULoader/Private/VRM4ULoaderModule.cpp

@@ -0,0 +1,146 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "Engine/Engine.h"
+#include "Modules/ModuleManager.h"
+#include "Modules/ModuleInterface.h"
+#include "VRM4ULoaderLog.h"
+
+#if PLATFORM_WINDOWS
+
+#include "Windows/AllowWindowsPlatformTypes.h"
+#include "shellapi.h"
+#include "Windows/HideWindowsPlatformTypes.h"
+
+#include "Windows/WindowsApplication.h"
+#include "GenericPlatform/GenericApplication.h"
+#include "Framework/Application/SlateApplication.h"
+#include "VrmDropFiles.h"
+#include "VrmRuntimeSettings.h"
+#include "Interfaces/IPluginManager.h"
+
+
+class FDropMessageHandler : public IWindowsMessageHandler { 
+public:
+
+	virtual bool ProcessMessage(HWND hwnd, uint32 msg, WPARAM wParam, LPARAM lParam, int32& OutResult) override {
+
+		{
+			const UObject *p = UVrmDropFilesComponent::getLatestActiveComponent();
+			const UWorld* World = nullptr;
+			if (p) {
+				World = GEngine->GetWorldFromContextObject(p, EGetWorldErrorMode::ReturnNull);
+			}
+
+			{
+				bool bCurrentState = false;
+				if (World) {
+
+					switch (World->WorldType) {
+					case EWorldType::Game:
+					case EWorldType::PIE:
+						bCurrentState = true;
+						break;
+					}
+
+				}
+				static bool bDropEnable = false;
+				if (bDropEnable != bCurrentState) {
+					bDropEnable = bCurrentState;
+					DragAcceptFiles(hwnd, bDropEnable);
+					//DragAcceptFiles(GetForegroundWindow(), bDropEnable);
+					DragAcceptFiles(GetActiveWindow(), bDropEnable);
+				}
+			}
+		}
+
+		if (msg == WM_DROPFILES)
+		{
+			TCHAR NextFile[MAX_PATH] = {};
+			HDROP hDrop = (HDROP)wParam;
+			// Get the # of files being dropped.
+			int32 NumFiles = DragQueryFile(hDrop, -1, NULL, 0);
+
+			for (int32 File = 0; File < NumFiles; File++)
+			{
+				// Get the next filename from the HDROP info.
+				if (DragQueryFile(hDrop, File, NextFile, MAX_PATH) > 0)
+				{
+					FString Filepath = NextFile;
+					//Do whatever you want with the filepath
+
+					UVrmDropFilesComponent::StaticOnDropFilesDelegate.Broadcast(Filepath);
+
+				}
+			}
+			return false;
+		}    
+		return false;
+	}
+};
+#endif
+
+
+#define LOCTEXT_NAMESPACE "VRM4ULoaderModule"
+DEFINE_LOG_CATEGORY(LogVRM4ULoader);
+
+class FVRM4ULoaderModule : public IModuleInterface {
+#if PLATFORM_WINDOWS
+	void *assimpDllHandle = nullptr;
+#endif
+
+	void StartupModule()
+	{
+		// This code will execute after your module is loaded into memory; the exact timing is specified in the .uplugin file per-module
+
+#if PLATFORM_WINDOWS
+		const UVrmRuntimeSettings* Settings = GetDefault<UVrmRuntimeSettings>();
+		if (Settings) {
+			if (Settings->bDropVRMFileEnable) {
+				if (FSlateApplication::IsInitialized()) {
+					static FDropMessageHandler DropMessageHandler;// = FDropMessageHandler();
+																  //FWindowsApplication* WindowsApplication = (FWindowsApplication*)GenericApplication.Get();
+					TSharedPtr<GenericApplication> App = FSlateApplication::Get().GetPlatformApplication();
+
+					if (App.IsValid()) {
+						auto WindowsApplication = (FWindowsApplication*)(App.Get());
+
+						//WindowsApplication->SetMessageHandler(DropMessageHandler);
+						WindowsApplication->AddMessageHandler(DropMessageHandler);
+					}
+				}
+			}
+		}
+
+		{
+			auto dllName = TEXT("assimp-vc141-mt.dll");
+#if WITH_VRM4U_ASSIMP_DEBUG
+			dllName = TEXT("assimp-vc141-mtd.dll");
+#endif
+			{
+				FString AbsPath = IPluginManager::Get().FindPlugin("VRM4U")->GetBaseDir() / TEXT("ThirdParty/assimp/bin/x64");
+				//FPlatformProcess::AddDllDirectory(*AbsPath);
+				assimpDllHandle = FPlatformProcess::GetDllHandle(*(AbsPath / dllName));
+			}
+		}
+
+#endif
+
+	}
+
+	void ShutdownModule()
+	{
+		// This function may be called during shutdown to clean up your module.  For modules that support dynamic reloading,
+		// we call this function before unloading the module.
+
+#if PLATFORM_WINDOWS
+		if (assimpDllHandle){
+			FPlatformProcess::FreeDllHandle(assimpDllHandle);
+			assimpDllHandle = nullptr;
+		}
+#endif
+	}
+};
+
+#undef LOCTEXT_NAMESPACE
+	
+IMPLEMENT_MODULE(FVRM4ULoaderModule, VRM4ULoader)

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmAsyncLoadAction.cpp

@@ -0,0 +1,289 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmAsyncLoadAction.h"
+#include "Async/TaskGraphInterfaces.h"
+#include "Engine/Texture2D.h"
+#include "Misc/FileHelper.h"
+
+#include "LoaderBPFunctionLibrary.h"
+#include "VrmAssetListObject.h"
+#include "VRM4ULoaderLog.h"
+
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/material.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+#if	UE_VERSION_OLDER_THAN(4,23,0)
+#define TRACE_CPUPROFILER_EVENT_SCOPE(a)
+#define TRACE_CPUPROFILER_EVENT_SCOPE_TEXT(a)
+#else
+#endif
+
+namespace {
+	class VrmLocalAsyncAsset {
+	public:
+		TArray<bool> NormalBoolTable;
+		TArray<bool> MaskBoolTable;
+		TArray<uint8> vrmLocalRes;
+
+		Assimp::Importer* Importer = nullptr;
+		const aiScene* ScenePtr = nullptr;
+
+		void Reset() {
+			delete Importer;
+			Importer = nullptr;
+			ScenePtr = nullptr;
+
+			NormalBoolTable.Empty();
+			MaskBoolTable.Empty();
+			vrmLocalRes.Empty();
+		}
+	};
+	VrmLocalAsyncAsset localAsset;
+}
+
+static bool ConvTex(UVrmAssetListObject* vrmAssetList, const aiScene* mScenePtr, const FImportOptionData* option, const int TexCount, const int SubCount) {
+	if (vrmAssetList == nullptr || mScenePtr == nullptr) {
+		return true;
+	}
+	if ((int)mScenePtr->mNumTextures <= TexCount) {
+		return true;
+	}
+
+	if (TexCount == 0 && SubCount==0) {
+		localAsset.NormalBoolTable.Empty();
+		localAsset.MaskBoolTable.Empty();
+		vrmAssetList->Textures.Empty();
+
+		localAsset.NormalBoolTable.SetNum(mScenePtr->mNumTextures);
+		localAsset.MaskBoolTable.SetNum(mScenePtr->mNumTextures);
+		vrmAssetList->Textures.SetNum(mScenePtr->mNumTextures);
+
+		const VRM::VRMMetadata* meta = static_cast<const VRM::VRMMetadata*>(mScenePtr->mVRMMeta);
+		if (meta) {
+			for (int i = 0; i < meta->materialNum; ++i) {
+				int t = 0;
+
+				t = meta->material[i].textureProperties._BumpMap;
+				if (localAsset.NormalBoolTable.IsValidIndex(t)) {
+					localAsset.NormalBoolTable[t] = true;
+				}
+
+				t = meta->material[i].textureProperties._OutlineWidthTexture;
+				if (localAsset.MaskBoolTable.IsValidIndex(t)) {
+					localAsset.MaskBoolTable[t] = true;
+				}
+			}
+		}
+	}
+
+	if (mScenePtr->HasTextures()) {
+		// Note: PNG format.  Other formats are supported
+
+		//for (uint32_t i = 0; i < mScenePtr->mNumTextures; ++i) {
+		{
+			uint32_t i = TexCount;
+			if (SubCount == 0) {
+				auto& t = *mScenePtr->mTextures[i];
+				int Width = t.mWidth;
+				int Height = t.mHeight;
+
+				FString baseName = VRMConverter::NormalizeFileName(t.mFilename.C_Str());
+				if (baseName.Len() == 0) {
+					baseName = TEXT("texture") + FString::FromInt(i);
+				}
+				bool bNormalGreenFlip = localAsset.NormalBoolTable[i];
+				if (bNormalGreenFlip) {
+					baseName += TEXT("_N");
+				}
+
+				FString name = FString(TEXT("T_")) + baseName;
+				auto* pkg = GetTransientPackage();
+				UTexture2D* NewTexture2D = VRMLoaderUtil::CreateTextureFromImage(name, pkg, t.pcData, t.mWidth, false, localAsset.NormalBoolTable[i], bNormalGreenFlip&&(VRMConverter::IsImportMode() == false));
+				vrmAssetList->Textures[i] = NewTexture2D;
+			}
+
+			if (SubCount == 1) {
+				UTexture2D* NewTexture2D = vrmAssetList->Textures[i];
+
+#if WITH_EDITOR
+				NewTexture2D->DeferCompression = false;
+#endif
+
+				// Set options
+				if (localAsset.NormalBoolTable[i]) {
+					NewTexture2D->CompressionSettings = TC_Normalmap;
+					NewTexture2D->SRGB = 0;
+#if WITH_EDITOR
+					if (VRMConverter::IsImportMode()) {
+						NewTexture2D->bFlipGreenChannel = true;
+					}
+#endif
+				}
+				if (localAsset.MaskBoolTable[i]) {
+					// comment for material warning...
+					//NewTexture2D->SRGB = 0;
+				}
+
+				if (NewTexture2D->SRGB) {
+					if (option->bBC7Mode) {
+						NewTexture2D->CompressionSettings = TC_BC7;
+					}
+				}
+				if (option->bMipmapGenerateMode == false) {
+#if WITH_EDITORONLY_DATA
+					NewTexture2D->MipGenSettings = TMGS_NoMipmaps;
+#endif
+				}
+
+				NewTexture2D->UpdateResource();
+#if WITH_EDITOR
+				//NewTexture2D->PostEditChange();
+#endif
+
+			}
+		}
+	}
+	return false;
+}
+
+
+
+
+FVrmAsyncLoadAction::FVrmAsyncLoadAction(const FLatentActionInfo& LatentInfo, FVrmAsyncLoadActionParam &p)
+	: ExecutionFunction(LatentInfo.ExecutionFunction)
+	, OutputLink(LatentInfo.Linkage)
+	, CallbackTarget(LatentInfo.CallbackTarget)
+	, param(p)
+	{
+}
+
+
+void FVrmAsyncLoadAction::UpdateOperation(FLatentResponse& Response)
+{
+	TRACE_CPUPROFILER_EVENT_SCOPE(TEXT("VRMLoad UpdateOperation"))
+
+	enum class ESequenceNo : uint32{
+		Init,
+		FileWait,
+		AssImp,
+		TextureLoop,
+		AssetCreate,
+		Finish,
+	};
+
+	static int TexCount = 0;
+	static int SubCount = 0;
+	static int FrameCount = 0;
+	static double StartTime = 0.f;
+	++FrameCount;
+
+	auto logFunc = [&](FString str="") {
+		UE_LOG(LogVRM4ULoader, Log, TEXT("AsyncLoad frame=%04d(%02.2lf),  SequenceNo=%02d %s"), FrameCount, FPlatformTime::Seconds()-StartTime, SequenceCount, *str);
+	};
+	auto logTexFunc = [&](int TexCount) {
+		UE_LOG(LogVRM4ULoader, Log, TEXT("AsyncLoad frame=%04d(%02.2lf),  SequenceNo=%02d  TextureCount=%02d"), FrameCount, FPlatformTime::Seconds() - StartTime, SequenceCount, TexCount);
+	};
+
+	// async file load
+	if (SequenceCount == (int)ESequenceNo::Init) {
+		TRACE_CPUPROFILER_EVENT_SCOPE(TEXT("VRMLoad UpdateOperation init"))
+		TexCount = 0;
+		SubCount = 0;
+		FrameCount = 0;
+		StartTime = FPlatformTime::Seconds();
+		logFunc("Begin");
+		++SequenceCount;
+
+
+		TFunction< void() > f = [&] {
+			if (FFileHelper::LoadFileToArray(localAsset.vrmLocalRes, *param.filepath)) {
+				param.pData = localAsset.vrmLocalRes.GetData();
+				param.dataSize = localAsset.vrmLocalRes.Num();
+			}
+		};
+
+		auto p2 = ENamedThreads::AnyBackgroundThreadNormalTask;
+		//p2 = ENamedThreads::AnyBackgroundThreadNormalTask;
+		//p2 = ENamedThreads::GameThread_Local;
+		t2 = FFunctionGraphTask::CreateAndDispatchWhenReady(f, TStatId(), nullptr, p2);
+		return;
+	}
+
+	if (SequenceCount == (int)ESequenceNo::FileWait) {
+		if (t2->IsComplete()) {
+			logFunc();
+			++SequenceCount;
+
+			param.OutVrmAsset = Cast<UVrmAssetListObject>(StaticDuplicateObject(param.InVrmAsset, GetTransientPackage(), NAME_None));
+		}
+		return;
+	}
+
+	if (SequenceCount == (int)ESequenceNo::AssImp) {
+		TRACE_CPUPROFILER_EVENT_SCOPE(TEXT("VRMLoad UpdateOperation assimp"))
+		logFunc();
+		++SequenceCount;
+
+		localAsset.Importer = new Assimp::Importer();
+		localAsset.ScenePtr = localAsset.Importer->ReadFileFromMemory(localAsset.vrmLocalRes.GetData(), localAsset.vrmLocalRes.Num(),
+			aiProcess_Triangulate | aiProcess_MakeLeftHanded | aiProcess_CalcTangentSpace | aiProcess_GenSmoothNormals | aiProcess_OptimizeMeshes,
+			"vrm");
+		return;
+	}
+
+	if (SequenceCount == (int)ESequenceNo::TextureLoop) {
+		TRACE_CPUPROFILER_EVENT_SCOPE_TEXT(*FString::Printf(TEXT("VRMLoad UpdateOperation texture %d"), SubCount))
+		if (localAsset.ScenePtr == nullptr) {
+			Response.FinishAndTriggerIf(true, ExecutionFunction, OutputLink, CallbackTarget);
+			localAsset.Reset();
+			return;
+		}
+
+		if (TexCount < (int)localAsset.ScenePtr->mNumTextures) {
+
+			if (SubCount == 0) {
+				ConvTex(param.OutVrmAsset, localAsset.ScenePtr, &param.OptionForRuntimeLoad, TexCount, 0);
+			}
+			if (SubCount == 2) {
+				ConvTex(param.OutVrmAsset, localAsset.ScenePtr, &param.OptionForRuntimeLoad, TexCount, 1);
+			}
+			++SubCount;
+
+			if (SubCount >= 4) {
+				logTexFunc(TexCount);
+				++TexCount;
+				SubCount = 0;
+			}
+		} else {
+			logFunc();
+			++SequenceCount;
+		}
+		return;
+	}
+
+
+	if (SequenceCount == (int)ESequenceNo::AssetCreate) {
+		TRACE_CPUPROFILER_EVENT_SCOPE(TEXT("VRMLoad UpdateOperation asset"))
+		logFunc();
+		++SequenceCount;
+		if (param.pData) {
+			ULoaderBPFunctionLibrary::LoadVRMFileFromMemory(param.InVrmAsset, param.OutVrmAsset, param.filepath, param.pData, param.dataSize);
+		} else {
+			ULoaderBPFunctionLibrary::LoadVRMFile(param.InVrmAsset, param.OutVrmAsset, param.filepath, param.OptionForRuntimeLoad);
+		}
+		return;
+	}
+
+	if (SequenceCount == (int)ESequenceNo::Finish) {
+		logFunc("End");
+
+		Response.FinishAndTriggerIf(true, ExecutionFunction, OutputLink, CallbackTarget);
+		localAsset.Reset();
+	}
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmAsyncLoadAction.h

@@ -0,0 +1,55 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/WeakObjectPtr.h"
+#include "Engine/LatentActionManager.h"
+#include "LatentActions.h"
+#include "VrmUtil.h"
+
+class UVrmAssetListObject;
+struct FImportOptionData;
+
+class FVrmAsyncLoadActionParam {
+public:
+	const UVrmAssetListObject* InVrmAsset;
+	UVrmAssetListObject*& OutVrmAsset;
+	const FImportOptionData OptionForRuntimeLoad;
+	const FString filepath;
+	const uint8* pData;
+	size_t dataSize;
+};
+
+
+class FVrmAsyncLoadAction : public FPendingLatentAction
+{
+public:
+	FName ExecutionFunction;
+	int32 OutputLink;
+	FWeakObjectPtr CallbackTarget;
+
+	int SequenceCount = 0;
+	FGraphEventRef t2 = nullptr;
+
+	FVrmAsyncLoadActionParam param;
+
+	FVrmAsyncLoadAction(const FLatentActionInfo& LatentInfo, FVrmAsyncLoadActionParam &);
+
+	virtual void UpdateOperation(FLatentResponse& Response) override;
+
+#if WITH_EDITOR
+	// Returns a human readable description of the latent operation's current state
+	virtual FString GetDescription() const override
+	{
+		//static const FNumberFormattingOptions DelayTimeFormatOptions = FNumberFormattingOptions()
+		//	.SetMinimumFractionalDigits(3)
+		//	.SetMaximumFractionalDigits(3);
+		//return FText::Format(NSLOCTEXT("DelayAction", "DelayActionTimeFmt", "Delay ({0} seconds left)"), FText::AsNumber(TimeRemaining, &DelayTimeFormatOptions)).ToString();
+		return FString("");
+	}
+#endif
+};
+
+
+

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmConvert.cpp

@@ -0,0 +1,926 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvert.h"
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+#include "UObject/Package.h"
+
+//static void assimpDummy() {
+	//volatile float f = Assimp::Math::PI<float>();
+//}
+
+
+static bool bImportMode = false;
+bool VRMConverter::IsImportMode() {
+	return bImportMode;
+}
+void VRMConverter::SetImportMode(bool b) {
+	bImportMode = b;
+}
+
+UPackage *VRMConverter::CreatePackageFromImportMode(UPackage *p, const FString &name) {
+	FString n =	p->GetName();
+	n += TEXT("/") + name;
+#if	UE_VERSION_OLDER_THAN(4,26,0)
+	return CreatePackage(nullptr, *n);
+#else
+	return CreatePackage(*n);
+#endif
+}
+
+
+FString VRMConverter::NormalizeFileName(const char *str) {
+	FString ret = UTF8_TO_TCHAR(str);
+
+	return NormalizeFileName(ret);
+}
+
+FString VRMConverter::NormalizeFileName(const FString &str) {
+	FString ret = str;
+	FText error;
+
+	if (!FName::IsValidXName(*ret, INVALID_OBJECTNAME_CHARACTERS INVALID_LONGPACKAGE_CHARACTERS, &error)) {
+		FString s = INVALID_OBJECTNAME_CHARACTERS;
+		s += INVALID_LONGPACKAGE_CHARACTERS;
+
+		auto a = s.GetCharArray();
+		for (int i = 0; i < a.Num(); ++i) {
+			FString tmp;
+			tmp.AppendChar(a[i]);
+			ret = ret.Replace(tmp.GetCharArray().GetData(), TEXT("_"));
+			//int ind;
+			//if (ret.FindChar(s[i], ind)) {
+			//}
+		}
+	}
+	return ret;
+}
+
+static bool hasInvalidBoneName(const aiString &s) {
+	for (uint32_t i = 0; i < s.length; ++i) {
+		if (s.data[i] >= 0 && s.data[i] <= 0x7e) {
+			continue;
+		}
+		return true;
+	}
+	return false;
+}
+
+static int totalCount = 0;
+
+static bool AddReplaceList(const aiNode *node, TMap<FString, FString> &map) {
+
+	if (node == nullptr) {
+		return true;
+	}
+
+	if (hasInvalidBoneName(node->mName)) {
+		FString s = TEXT("replace_") + FString::FromInt(totalCount);
+		if (map.Find(UTF8_TO_TCHAR(node->mName.C_Str())) == nullptr) {
+			map.Add(UTF8_TO_TCHAR(node->mName.C_Str()), s);
+			totalCount++;
+		}
+	}
+
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		AddReplaceList(node->mChildren[i], map);
+	}
+	return true;
+}
+
+static bool ReplaceNodeName(aiNode *node, const TMap<FString, FString> &map) {
+
+	if (node == nullptr) {
+		return true;
+	}
+
+	auto a = map.Find(UTF8_TO_TCHAR(node->mName.C_Str()));
+	if (a) {
+		node->mName.Set(TCHAR_TO_ANSI(**a));
+	}
+
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		ReplaceNodeName(node->mChildren[i], map);
+	}
+	return true;
+}
+
+static bool LocalMakeName(aiNode* node) {
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		LocalMakeName(node->mChildren[i]);
+	}
+	auto s = VRMUtil::MakeName(UTF8_TO_TCHAR(node->mName.C_Str()), true);
+	node->mName = TCHAR_TO_UTF8(*s);
+
+	return true;
+}
+
+
+static bool LocalNormalizeBone(aiNode *node) {
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		LocalNormalizeBone(node->mChildren[i]);
+	}
+	auto s = VRMUtil::GetSafeNewName(UTF8_TO_TCHAR(node->mName.C_Str()));
+	node->mName = TCHAR_TO_UTF8(*s);
+
+	return true;
+}
+
+bool VRMConverter::NormalizeBoneName(const aiScene *mScenePtr) {
+	if (mScenePtr == nullptr) {
+		return false;
+	}
+
+	if (VRMConverter::Options::Get().IsForceOriginalBoneName()) {
+	}else{
+		LocalMakeName(mScenePtr->mRootNode);
+
+		// aiBone name
+		for (uint32 m = 0; m < mScenePtr->mNumMeshes; ++m) {
+			auto* aiM = mScenePtr->mMeshes[m];
+
+			for (uint32 b = 0; b < aiM->mNumBones; ++b) {
+				auto* aiB = aiM->mBones[b];
+
+				auto s = VRMUtil::MakeName(UTF8_TO_TCHAR(aiB->mName.C_Str()), true);
+				aiB->mName = TCHAR_TO_UTF8(*s);
+			}
+		}
+
+		// spring, collision name
+		VRM::VRMMetadata* meta = reinterpret_cast<VRM::VRMMetadata*>(mScenePtr->mVRMMeta);
+		if (meta) {
+			for (int s = 0; s < meta->springNum; ++s) {
+				for (int b = 0; b < meta->springs[s].boneNum; ++b) {
+					auto str = VRMUtil::MakeName(UTF8_TO_TCHAR(meta->springs[s].bones_name[b].C_Str()), true);
+					meta->springs[s].bones_name[b] = TCHAR_TO_UTF8(*str);
+				}
+			}
+			for (int c = 0; c < meta->colliderGroupNum; ++c) {
+				auto str = VRMUtil::MakeName(UTF8_TO_TCHAR(meta->colliderGroups[c].node_name.C_Str()), true);
+				meta->colliderGroups[c].node_name = TCHAR_TO_UTF8(*str);
+			}
+		}
+	}
+
+	return true;
+
+
+	/*
+	//auto p = const_cast<aiScene*>(mScenePtr);
+	//if (p == nullptr) return false;
+
+	TMap<FString, FString> replaceTable;
+
+	totalCount = 0;
+	//mScenePtr->mMeshes[0]->bon
+
+	AddReplaceList(mScenePtr->mRootNode, replaceTable);
+
+	for (uint32_t m = 0; m < mScenePtr->mNumMeshes; ++m) {
+		if (hasInvalidBoneName(mScenePtr->mMeshes[m]->mName)) {
+			FString s = TEXT("replace_") + FString::FromInt(totalCount);
+			if (replaceTable.Find(UTF8_TO_TCHAR(mScenePtr->mMeshes[m]->mName.C_Str())) == nullptr) {
+				replaceTable.Add(UTF8_TO_TCHAR(mScenePtr->mMeshes[m]->mName.C_Str()), s);
+				totalCount++;
+			}
+		}
+	}
+
+	// replace!
+
+	ReplaceNodeName(mScenePtr->mRootNode, replaceTable);
+
+	for (uint32_t m = 0; m < mScenePtr->mNumMeshes; ++m) {
+		if (auto a = replaceTable.Find(UTF8_TO_TCHAR(mScenePtr->mMeshes[m]->mName.C_Str()))){
+			mScenePtr->mMeshes[m]->mName.Set(TCHAR_TO_ANSI(**a));
+		}
+
+		auto &aiM = mScenePtr->mMeshes[m];
+		for (uint32_t b = 0; b < aiM->mNumBones; ++b) {
+			if (auto a = replaceTable.Find(UTF8_TO_TCHAR(aiM->mBones[b]->mName.C_Str()))) {
+				aiM->mBones[b]->mName.Set(TCHAR_TO_ANSI(**a));
+			}
+		}
+	}
+
+	{
+		VRM::VRMMetadata *meta = reinterpret_cast<VRM::VRMMetadata*>(mScenePtr->mVRMMeta);
+
+		for (int s = 0; s < meta->springNum; ++s) {
+			auto &a = meta->springs[s];
+			if (a.bones_name == nullptr) {
+				continue;
+			}
+			for (int b = 0; b < a.boneNum; ++b) {
+				if (auto str = replaceTable.Find(UTF8_TO_TCHAR(a.bones_name[b].C_Str()))) {
+					a.bones_name[b].Set(TCHAR_TO_ANSI(**str));
+				}
+			}
+		}
+
+		for (int c = 0; c < meta->colliderGroupNum; ++c) {
+			auto &a = meta->colliderGroups[c];
+			if (auto str = replaceTable.Find(UTF8_TO_TCHAR(a.node_name.C_Str()))) {
+				a.node_name.Set(TCHAR_TO_ANSI(**str));
+			}
+		}
+
+		for (auto &a : meta->humanoidBone) {
+			if (auto str = replaceTable.Find(UTF8_TO_TCHAR(a.nodeName.C_Str()))) {
+				a.nodeName.Set(TCHAR_TO_ANSI(**str));
+			}
+		}
+	}
+
+
+	return true;
+	*/
+}
+
+
+////
+
+VRMConverter::Options& VRMConverter::Options::Get(){
+	static VRMConverter::Options o;
+	return o;
+}
+
+USkeleton *VRMConverter::Options::GetSkeleton() {
+	if (ImportOption == nullptr) return nullptr;
+
+	return ImportOption->Skeleton;
+}
+
+bool VRMConverter::Options::IsSkipNoMeshBone() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bSkipNoMeshBone;
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsSkipMorphTarget() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bSkipMorphTarget || IsDebugNoMesh();
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsEnableMorphTargetNormal() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bEnableMorphTargetNormal;
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsForceOriginalMorphTargetName() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bForceOriginalMorphTargetName;
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsRemoveBlendShapeGroupPrefix() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bRemoveBlendShapeGroupPrefix;
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsForceOriginalBoneName() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bForceOriginalBoneName;
+}
+
+bool VRMConverter::Options::IsGenerateHumanoidRenamedMesh() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bGenerateHumanoidRenamedMesh;
+}
+
+bool VRMConverter::Options::IsGenerateIKBone() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bGenerateIKBone;
+}
+bool VRMConverter::Options::IsGenerateRigIK() const {
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bGenerateRigIK;
+#else
+	return false;
+#endif
+}
+
+bool VRMConverter::Options::IsMobileBone() const {
+	bool ret = false;
+#if (PLATFORM_WINDOWS)
+#else
+	ret = true;
+#endif
+
+
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bMobileBone;
+#else
+	return ret;
+#endif
+}
+
+int VRMConverter::Options::GetBoneWeightInfluenceNum() const {
+	int ret = 8;
+
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return FMath::Clamp(ImportOption->BoneWeightInfluenceNum, 1, 8);
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsDebugIgnoreVRMValidation() const {
+	bool ret = false;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bIgnoreVRMValidation;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsDebugOneBone() const {
+	bool ret = false;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bDebugOneBone;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsDebugNoMesh() const {
+	bool ret = false;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bDebugNoMesh;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsDebugNoMaterial() const {
+	bool ret = false;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bDebugNoMaterial;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsSimpleRootBone() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bSimpleRoot;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsActiveBone() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bActiveBone;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsSkipPhysics() const {
+	bool ret = true;
+
+	if (IsDebugOneBone()) {
+		return true;
+	}
+
+	if (ImportOption == nullptr) return ret;
+
+	if (ImportOption->bUEFN) return true;
+
+	return ImportOption->bSkipPhysics;
+}
+
+bool VRMConverter::Options::IsSkipRetargeter() const {
+	bool ret = false;
+
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bSkipRetargeter;
+}
+
+bool VRMConverter::Options::IsForceOpaque() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bForceOpaque;
+}
+
+bool VRMConverter::Options::IsForceTwoSided() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bForceTwoSided;
+}
+
+bool VRMConverter::Options::IsSingleUAssetFile() const {
+	if (ImportOption == nullptr) return false;
+
+	if (ImportOption->bUEFN) return false;
+
+	return ImportOption->bSingleUAssetFile;
+}
+
+bool VRMConverter::Options::IsDefaultGridTextureMode() const {
+	bool ret = false;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bDefaultGridTextureMode;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsBC7Mode() const {
+	if (ImportOption == nullptr) return true;
+	return ImportOption->bBC7Mode;
+}
+
+bool VRMConverter::Options::IsMipmapGenerateMode() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bMipmapGenerateMode;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsGenerateOutlineMaterial() const {
+	bool ret = true;
+	if (ImportOption == nullptr) return true;
+	return ImportOption->bGenerateOutlineMaterial;
+}
+
+
+bool VRMConverter::Options::IsMergeMaterial() const {
+	bool ret = true;
+	if (ImportOption == nullptr) return true;
+	return ImportOption->bMergeMaterial;
+}
+
+bool VRMConverter::Options::IsMergePrimitive() const {
+	if (ImportOption == nullptr) return true;
+	return ImportOption->bMergePrimitive;
+}
+
+bool VRMConverter::Options::IsOptimizeVertex() const {
+	return false;
+	//if (ImportOption == nullptr) return true;
+	//return ImportOption->bOptimizeVertex;
+}
+
+bool VRMConverter::Options::IsRemoveDegenerateTriangles() const {
+	if (ImportOption == nullptr) return true;
+	return ImportOption->bRemoveDegenerateTriangles;
+}
+
+bool VRMConverter::Options::IsUE5Material() const {
+	if (ImportOption == nullptr) return false;
+	return ImportOption->bUseUE5Material;
+}
+
+static bool bbVRM0 = false;
+static bool bbVRM10 = false;
+void VRMConverter::Options::SetVRM0Model(bool bVRM) {
+	bbVRM0 = bVRM;
+	bbVRM10 = !bVRM;
+}
+void VRMConverter::Options::SetVRM10Model(bool bVRM) {
+	bbVRM10 = bVRM;
+	bbVRM0 = !bVRM;
+}
+
+bool VRMConverter::Options::IsVRM0Model() const {
+	return bbVRM0;
+}
+bool VRMConverter::Options::IsVRM10Model() const {
+	return bbVRM10;
+}
+bool VRMConverter::Options::IsRemoveRootBoneRotation() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bRemoveRootBoneRotation;
+#else
+	return ret;
+#endif
+}
+bool VRMConverter::Options::IsRemoveRootBonePosition() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bRemoveRootBonePosition;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsVRM10RemoveLocalRotation() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bVrm10RemoveLocalRotation;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsVRM10BindToRestPose() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+	return ImportOption->bVrm10UseBindToRestPose;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsVRM10Bindpose() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bVrm10Bindpose;
+#else
+	return ret;
+#endif
+}
+
+bool VRMConverter::Options::IsVRMModel() const {
+	return IsVRM0Model() || IsVRM10Model();
+}
+
+static bool bbVRMA = false;
+void VRMConverter::Options::SetVRMAModel(bool bVRMA) {
+	bbVRMA = bVRMA;
+}
+
+bool VRMConverter::Options::IsVRMAModel() const {
+	return bbVRMA;
+}
+
+static bool bbBVH = false;
+void VRMConverter::Options::SetBVHModel(bool bBVH) {
+	bbBVH = bBVH;
+}
+
+bool VRMConverter::Options::IsBVHModel() const {
+	return bbBVH;
+}
+
+static bool bbPMX = false;
+void VRMConverter::Options::SetPMXModel(bool bVRM) {
+	bbPMX = bVRM;
+}
+
+bool VRMConverter::Options::IsPMXModel() const {
+	return bbPMX;
+}
+
+static bool bbNoMesh = false;
+void VRMConverter::Options::SetNoMesh(bool bNoMesh) {
+	bbNoMesh = bNoMesh;
+}
+
+bool VRMConverter::Options::IsNoMesh() const {
+	return bbNoMesh;
+}
+
+void VRMConverter::Options::ClearModelType() {
+	bbVRM0 = false;
+	bbVRM10 = false;
+	bbVRMA = false;
+	bbBVH = false;
+	bbPMX = false;
+	bbNoMesh = false;
+}
+
+bool VRMConverter::Options::IsForceOverride() const {
+	bool ret = true;
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return ret;
+
+	return ImportOption->bForceOverride;
+#else
+	return ret;
+#endif
+}
+
+float VRMConverter::Options::GetModelScale() const {
+	if (ImportOption == nullptr) return 1.f;
+	return ImportOption->ModelScale;
+}
+
+float VRMConverter::Options::GetAnimationTranslateScale() const {
+	if (ImportOption == nullptr) return 1.f;
+	return ImportOption->AnimationTranslateScale;
+}
+
+float VRMConverter::Options::GetAnimationPlayRateScale() const {
+	if (ImportOption == nullptr) return 1.f;
+	return ImportOption->PlayRateScale;
+}
+
+bool VRMConverter::Options::IsAPoseRetarget() const {
+	if (IsDebugOneBone()) {
+		return false;
+	}
+#if WITH_EDITOR
+	if (ImportOption == nullptr) return false;
+
+	return ImportOption->bAPoseRetarget;
+#else
+	return false;
+#endif
+}
+
+
+static EVRMImportMaterialType mType = EVRMImportMaterialType::VRMIMT_Auto;
+void VRMConverter::Options::SetMaterialType(EVRMImportMaterialType t) {
+	mType = t;
+}
+EVRMImportMaterialType VRMConverter::Options::GetMaterialType() const {
+	if (ImportOption == nullptr) return mType;
+	return ImportOption->MaterialType;
+}
+
+////
+VrmConvert::VrmConvert()
+{
+}
+
+VrmConvert::~VrmConvert()
+{
+}
+
+FString VRM4U_GetPackagePath(UPackage* Outer) {
+	if (Outer == nullptr) return "";
+	if (Outer != GetTransientPackage()) {
+		FString s = Outer->GetPathName();
+		FString s1, s2;
+		s.Split(TEXT("/"), &s1, &s2, ESearchCase::IgnoreCase, ESearchDir::FromEnd);
+
+		return s1 + TEXT("/");
+	}
+	return "";
+}
+
+
+UPackage* VRM4U_CreatePackage(UPackage* Outer, FName Name) {
+	if (Outer == nullptr) return nullptr;
+	UPackage* pkg = Outer;
+	if (Outer != GetTransientPackage()) {
+		FString s = Outer->GetPathName();
+		FString s1, s2;
+		s.Split(TEXT("/"), &s1, &s2, ESearchCase::IgnoreCase, ESearchDir::FromEnd);
+
+#if	UE_VERSION_OLDER_THAN(4,26,0)
+		pkg = CreatePackage(nullptr, *(s1 + TEXT("/") + Name.ToString()));
+#else
+		pkg = CreatePackage(*(s1 + TEXT("/") + Name.ToString()));
+#endif
+	}
+	return pkg;
+}
+
+
+UObject* VRM4U_StaticDuplicateObject(UObject const* SourceObject, UObject* DestOuter, const FName DestName, EObjectFlags FlagMask, UClass* DestClass, EDuplicateMode::Type DuplicateMode, EInternalObjectFlags InternalFlagsMask) {
+
+	if (VRMConverter::Options::Get().IsSingleUAssetFile() == false) {
+		DestOuter = VRM4U_CreatePackage(Cast<UPackage>(DestOuter), DestName);
+	}
+
+	return StaticDuplicateObject(SourceObject,
+		DestOuter, DestName,
+		FlagMask, DestClass, DuplicateMode, InternalFlagsMask);
+}
+
+
+
+
+///
+
+template<typename T1>
+static void copyVector(VRM::vec4 &v, const T1& t) {
+	v[3] = 1.f;
+
+	if (t.Size() > 0) v[0] = t[0].GetFloat();
+	if (t.Size() > 1) v[1] = t[1].GetFloat();
+	if (t.Size() > 2) v[2] = t[2].GetFloat();
+	if (t.Size() > 3) v[3] = t[3].GetFloat();
+}
+
+int VRMConverter::GetThumbnailTextureIndex() const {
+
+	if (VRMConverter::Options::Get().IsVRM0Model()) {
+		return -1;
+	}
+	auto& meta = jsonData.doc["extensions"]["VRMC_vrm"]["meta"];
+	for (auto m = meta.MemberBegin(); m != meta.MemberEnd(); ++m) {
+
+		FString key = UTF8_TO_TCHAR((*m).name.GetString());
+
+		if (key == "thumbnailImage") {
+			return (*m).value.GetInt();
+		}
+	}
+	return -1;
+}
+
+bool VRMConverter::GetMatParam(VRM::VRMMaterial &m, int matNo) const {
+
+	if (VRMConverter::Options::Get().IsVRM0Model()) {
+		const VRM::VRMMetadata* meta = static_cast<const VRM::VRMMetadata*>(aiData->mVRMMeta);
+		if (meta == nullptr) return false;
+		if (matNo >= meta->materialNum) {
+			return false;
+		}
+		m.CopyFrom(meta->material[matNo]);
+		return true;
+	}
+
+	memset(&m.floatProperties, 0, sizeof(m.floatProperties));
+	memset(&m.textureProperties, 0, sizeof(m.textureProperties));
+	memset(&m.vectorProperties, 0, sizeof(m.vectorProperties));
+
+	m.vectorProperties._Color[0] = 1.f;
+	m.vectorProperties._Color[1] = 1.f;
+	m.vectorProperties._Color[2] = 1.f;
+	m.vectorProperties._Color[3] = 1.f;
+	m.vectorProperties._ShadeColor[0] = 1.f;
+	m.vectorProperties._ShadeColor[1] = 1.f;
+	m.vectorProperties._ShadeColor[2] = 1.f;
+	m.vectorProperties._ShadeColor[3] = 1.f;
+
+	m.vectorProperties._OutlineColor[0] = 0.f;
+	m.vectorProperties._OutlineColor[1] = 0.f;
+	m.vectorProperties._OutlineColor[2] = 0.f;
+	m.vectorProperties._OutlineColor[3] = 1.f;
+
+	m.floatProperties._BumpScale = 1.f;
+	m.floatProperties._ReceiveShadowRate = 1.f;
+	m.floatProperties._OutlineLightingMix = 1.f;
+	m.floatProperties._OutlineWidth = 0.1f;
+	m.floatProperties._OutlineWidthMode = 1.f;
+
+	m.textureProperties._MainTex = -1;
+	m.textureProperties._ShadeTexture = -1;
+	m.textureProperties._BumpMap = -1;
+	m.textureProperties._ReceiveShadowTexture = -1;
+	m.textureProperties._ShadingGradeTexture = -1;
+	m.textureProperties._RimTexture = -1;
+	m.textureProperties._SphereAdd = -1;
+	m.textureProperties._EmissionMap = -1;
+	m.textureProperties._OutlineWidthTexture = -1;
+	m.textureProperties._UvAnimMaskTexture = -1;
+
+	if (jsonData.doc.HasMember("materials") == false) {
+		return true;
+	}
+	if (jsonData.doc["materials"].IsArray() == false) {
+		return true;
+	}
+	auto& mat = jsonData.doc["materials"].GetArray()[matNo];
+
+	m.name = mat["name"].GetString();
+
+	// texture
+	{
+		if (mat["extensions"]["VRMC_materials_mtoon"]["matcapTexture"]["index"].IsInt()) {
+			m.textureProperties._SphereAdd = mat["extensions"]["VRMC_materials_mtoon"]["matcapTexture"]["index"].GetInt();
+		}
+		if (mat["extensions"]["VRMC_materials_mtoon"]["rimMultiplyTexture"]["index"].IsInt()) {
+			m.textureProperties._RimTexture = mat["extensions"]["VRMC_materials_mtoon"]["rimMultiplyTexture"]["index"].GetInt();
+		}
+
+	}
+
+	// float
+	{
+		//m.floatProperties._Cutoff;
+		m.floatProperties._BumpScale = 1.f;
+		m.floatProperties._ReceiveShadowRate = 1.f;
+		m.floatProperties._ShadeShift			= mat["extensions"]["VRMC_materials_mtoon"]["shadingShiftFactor"].GetFloat();
+		m.floatProperties._ShadeToony			= mat["extensions"]["VRMC_materials_mtoon"]["shadingToonyFactor"].GetFloat();
+		//m.floatProperties._LightColorAttenuation;
+		//m.floatProperties._IndirectLightIntensity;
+		m.floatProperties._RimLightingMix		= mat["extensions"]["VRMC_materials_mtoon"]["rimLightingMixFactor"].GetFloat();
+		m.floatProperties._RimFresnelPower		= mat["extensions"]["VRMC_materials_mtoon"]["parametricRimFresnelPowerFactor"].GetFloat();
+		m.floatProperties._RimLift = mat["extensions"]["VRMC_materials_mtoon"]["parametricRimLiftFactor"].GetFloat();
+		m.floatProperties._OutlineWidth = mat["extensions"]["VRMC_materials_mtoon"]["outlineWidthFactor"].GetFloat() * 100.f;
+		//m.floatProperties._OutlineScaledMaxDistance;
+		m.floatProperties._OutlineLightingMix = mat["extensions"]["VRMC_materials_mtoon"]["outlineLightingMixFactor"].GetFloat();
+		m.floatProperties._UvAnimScrollX = mat["extensions"]["VRMC_materials_mtoon"]["uvAnimationScrollXSpeedFactor"].GetFloat();
+		m.floatProperties._UvAnimScrollY = mat["extensions"]["VRMC_materials_mtoon"]["uvAnimationScrollYSpeedFactor"].GetFloat();
+		m.floatProperties._UvAnimRotation = mat["extensions"]["VRMC_materials_mtoon"]["uvAnimationRotationSpeedFactor"].GetFloat();
+		//m.floatProperties._MToonVersion;
+		//m.floatProperties._DebugMode;
+		//m.floatProperties._BlendMode;
+		m.floatProperties._OutlineWidthMode = 1.f;
+		{
+			FString s = mat["extensions"]["VRMC_materials_mtoon"]["outlineWidthMode"].GetString();
+			if (s == "none") {
+				m.floatProperties._OutlineWidthMode = 0.f;
+				m.floatProperties._OutlineWidth = 0;
+			}
+		}
+		//m.floatProperties._OutlineColorMode;
+		//m.floatProperties._CullMode;
+		//m.floatProperties._OutlineCullMode;
+		//m.floatProperties._SrcBlend;
+		//m.floatProperties._DstBlend;
+		m.floatProperties._ZWrite = mat["extensions"]["VRMC_materials_mtoon"]["transparentWithZWrite"].GetBool() ? 1.f : 0.f;
+	}
+
+	// vector
+	{
+		{
+			auto t = mat["pbrMetallicRoughness"]["baseColorFactor"].GetArray();
+			copyVector(m.vectorProperties._Color, t);
+		}
+		{
+			auto t = mat["extensions"]["VRMC_materials_mtoon"]["shadeColorFactor"].GetArray();
+			if (t.Size()) {
+				copyVector(m.vectorProperties._ShadeColor, t);
+				m.vectorProperties._ShadeColor[3] = m.vectorProperties._Color[3];
+			}
+		}
+		{
+			auto t = mat["extensions"]["VRMC_materials_mtoon"]["parametricRimColorFactor"].GetArray();
+			if (t.Size()) {
+				copyVector(m.vectorProperties._RimColor, t);
+			}
+		}
+		{
+			auto t = mat["emissiveFactor"].GetArray();
+			if (t.Size()) {
+				copyVector(m.vectorProperties._EmissionColor, t);
+			}
+		}
+		{
+			auto t = mat["extensions"]["VRMC_materials_mtoon"]["outlineColorFactor"].GetArray();
+			if (t.Size()) {
+				copyVector(m.vectorProperties._OutlineColor, t);
+			}
+		}
+		{
+			auto t = mat["extensions"]["VRMC_materials_mtoon"]["matcapFactor"].GetArray();
+			if (t.Size()) {
+				//copyVector(m.vectorProperties._OutlineColor, t);
+			}
+		}
+	}
+
+	return true;
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmConvertHumanoid.cpp

@@ -0,0 +1,383 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvertHumanoid.h"
+#include "VrmConvert.h"
+#include "VrmUtil.h"
+
+#include "VrmAssetListObject.h"
+#include "VrmMetaObject.h"
+
+#include "Engine/SkeletalMesh.h"
+#include "RenderingThread.h"
+#include "Rendering/SkeletalMeshModel.h"
+#include "Rendering/SkeletalMeshLODModel.h"
+#include "Rendering/SkeletalMeshLODRenderData.h"
+#include "Rendering/SkeletalMeshRenderData.h"
+#include "Animation/MorphTarget.h"
+#include "Animation/Skeleton.h"
+#include "Animation/NodeMappingContainer.h"
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+
+static void renameToHumanoidBone(USkeletalMesh *targetSK, const UVrmMetaObject *meta, const USkeletalMesh *srcSK) {
+
+	USkeleton *targetSkeleton = VRMGetSkeleton(targetSK);
+	UNodeMappingContainer* rig = nullptr;
+	if (VRMGetNodeMappingData(targetSK).Num()) {
+		rig = VRMGetNodeMappingData(targetSK)[0];
+	}
+	UNodeMappingContainer* src_rig = nullptr;
+	if (VRMGetNodeMappingData(srcSK).Num()) {
+		src_rig = VRMGetNodeMappingData(srcSK)[0];
+	}
+
+	if (meta == nullptr) {
+		return;
+	}
+	//k->RemoveBonesFromSkeleton()
+	auto &allbone = const_cast<TArray<FMeshBoneInfo> &>(targetSkeleton->GetReferenceSkeleton().GetRawRefBoneInfo());
+
+	TMap<FName, FName> changeTable;
+
+	{
+		bool bHasRoot = false;
+		for (auto& a : allbone) {
+			if (a.Name == TEXT("Root")) {
+				a.Name = TEXT("root");
+#if WITH_EDITORONLY_DATA
+				a.ExportName = TEXT("root");
+#endif
+				bHasRoot = true;
+				break;
+			}
+		}
+		if (bHasRoot == false) {
+			if (allbone[0].Name != TEXT("hip")) {
+				allbone[0].Name = TEXT("root");
+#if WITH_EDITORONLY_DATA
+				allbone[0].ExportName = TEXT("root");
+#endif
+			}
+		}
+	}
+
+	for (auto &a : allbone) {
+		auto p = meta->humanoidBoneTable.FindKey(a.Name.ToString());
+		if (p == nullptr) {
+			continue;
+		}
+		if (p->IsEmpty()) {
+			continue;
+		}
+		for (auto &b : allbone) {
+			if (a == b) continue;
+			if (b.Name == **p) {
+				b.Name = *(b.Name.ToString() + TEXT("_renamed_vrm4u"));
+			}
+		}
+		changeTable.Add(a.Name, **p);
+
+		a.Name = **p;
+#if WITH_EDITORONLY_DATA
+		a.ExportName = **p;
+#endif
+	}
+
+	const_cast<FReferenceSkeleton&>(targetSkeleton->GetReferenceSkeleton()).RebuildRefSkeleton(targetSkeleton, true);
+
+	VRMSetRefSkeleton(targetSK, targetSkeleton->GetReferenceSkeleton());
+
+#if WITH_EDITOR
+#if	UE_VERSION_OLDER_THAN(4,20,0)
+#elif UE_VERSION_OLDER_THAN(5,4,0)
+	if (src_rig) {
+		rig->SetSourceAsset(src_rig->GetSourceAsset());
+		rig->SetTargetAsset(targetSK);
+
+		targetSkeleton->RefreshRigConfig();
+
+		{
+			auto &table = src_rig->GetNodeMappingTable();
+
+			for (auto &t : table) {
+				FName n = t.Value;
+				{
+					auto *ret = changeTable.Find(t.Value);
+					if (ret) {
+						n = *ret;
+					}
+				}
+
+				rig->AddMapping(t.Key, n);
+				targetSkeleton->SetRigBoneMapping(t.Key, n);
+			}
+		}
+		rig->PostEditChange();
+	}
+#else
+	//  ue5.4 no rig data
+#endif
+#endif
+}
+
+static void renameToUE4Bone(USkeletalMesh *targetSK, UVrmMetaObject *meta, const USkeletalMesh *srcSK) {
+
+	USkeleton *targetSkeleton = VRMGetSkeleton(targetSK);
+	UNodeMappingContainer* rig = nullptr;
+	if (VRMGetNodeMappingData(targetSK).Num()) {
+		rig = VRMGetNodeMappingData(targetSK)[0];
+	}
+	UNodeMappingContainer* src_rig = nullptr;
+	if (VRMGetNodeMappingData(srcSK).Num()) {
+		src_rig = VRMGetNodeMappingData(srcSK)[0];
+	}
+
+	//k->RemoveBonesFromSkeleton()
+	auto &allbone = const_cast<TArray<FMeshBoneInfo> &>(targetSkeleton->GetReferenceSkeleton().GetRawRefBoneInfo());
+
+	TMap<FName, FName> changeTable;
+
+	allbone[0].Name = TEXT("root");
+#if WITH_EDITORONLY_DATA
+	allbone[0].ExportName = TEXT("root");
+#endif
+
+	for (auto &a : allbone) {
+
+		FString toVRMBone;
+		for (auto& tmp : meta->humanoidBoneTable) {
+			if (a.Name.ToString().ToLower() != tmp.Value.ToLower()) continue;
+
+			toVRMBone = tmp.Key;
+			break;
+		}
+		if (toVRMBone == "") continue;
+
+		FString toUE4Bone;
+		for (auto& tmp : VRMUtil::table_ue4_vrm) {
+			if (toVRMBone.ToLower() != tmp.BoneVRM.ToLower()) continue;
+
+			toUE4Bone = tmp.BoneUE4;
+			break;
+		}
+		if (toUE4Bone == "") continue;
+
+		FString newName = toUE4Bone;
+
+		for (auto &b : allbone) {
+			if (a == b) continue;
+			if (b.Name == *(newName.ToLower())) {
+				b.Name = *(b.Name.ToString() + TEXT("_renamed_vrm4u"));
+			}
+		}
+		changeTable.Add(a.Name, *newName);
+
+		a.Name = *newName;
+#if WITH_EDITORONLY_DATA
+		a.ExportName = *newName;
+#endif
+	}
+
+	const_cast<FReferenceSkeleton&>(targetSkeleton->GetReferenceSkeleton()).RebuildRefSkeleton(targetSkeleton, true);
+
+	VRMSetRefSkeleton(targetSK, targetSkeleton->GetReferenceSkeleton());
+
+#if WITH_EDITOR
+#if	UE_VERSION_OLDER_THAN(4,20,0)
+#elif UE_VERSION_OLDER_THAN(5,4,0)
+
+	if (src_rig) {
+		rig->SetSourceAsset(src_rig->GetSourceAsset());
+		rig->SetTargetAsset(targetSK);
+
+		targetSkeleton->RefreshRigConfig();
+
+		{
+			auto &table = src_rig->GetNodeMappingTable();
+
+			for (auto &t : table) {
+				FName n = t.Value;
+				{
+					auto *ret = changeTable.Find(t.Value);
+					if (ret) {
+						n = *ret;
+					}
+				}
+
+				rig->AddMapping(t.Key, n);
+				targetSkeleton->SetRigBoneMapping(t.Key, n);
+			}
+		}
+		rig->PostEditChange();
+	}
+#else
+	// ue5.4 no rig data
+#endif
+#endif
+}
+
+
+
+bool VRMConverter::ConvertHumanoid(UVrmAssetListObject *vrmAssetList) {
+	if (Options::Get().IsGenerateHumanoidRenamedMesh() == false) {
+		return true;
+	}
+	const USkeletalMesh *src_sk = vrmAssetList->SkeletalMesh;
+	const USkeleton *src_k = VRMGetSkeleton(src_sk);
+	const UNodeMappingContainer *src_rig = nullptr;
+	if (VRMGetNodeMappingData(src_sk).Num()) {
+		src_rig = VRMGetNodeMappingData(src_sk)[0];
+	}
+
+	USkeletalMesh *new_sk[2] = {};
+	USkeleton *new_k[2] = {};
+	UNodeMappingContainer *new_rig[2] = {};
+
+	// 0: humanoid
+	// 1: ue4mannequin
+	for (int i = 0; i < 2; ++i) {
+		FString name_skeleton;
+		FString name_mesh;
+		FString name_rig;
+
+		if (i == 0) {
+			name_skeleton = (TEXT("SKEL_") + vrmAssetList->BaseFileName + TEXT("_humanoid"));
+			name_mesh = (FString(TEXT("SK_")) + vrmAssetList->BaseFileName + TEXT("_humanoid"));
+			name_rig = (FString(TEXT("RIG_")) + vrmAssetList->BaseFileName + TEXT("_humanoid"));
+		} else {
+			name_skeleton = (TEXT("SKEL_") + vrmAssetList->BaseFileName + TEXT("_ue4mannequin"));
+			name_mesh = (FString(TEXT("SK_")) + vrmAssetList->BaseFileName + TEXT("_ue4mannequin"));
+			name_rig = (FString(TEXT("RIG_")) + vrmAssetList->BaseFileName + TEXT("_ue4mannequin"));
+		}
+
+		USkeleton *base = nullptr;
+		USkeletalMesh *ss = nullptr;
+		UNodeMappingContainer *rr = nullptr;
+
+#if WITH_EDITOR
+		{
+			auto p = vrmAssetList->Package;
+
+			if (i == 0) {
+				ss = VRM4U_DuplicateObject<USkeletalMesh>(src_sk, p, *name_mesh);
+				base = VRM4U_DuplicateObject<USkeleton>(src_k, p, *name_skeleton);
+				if (src_rig) {
+					rr = VRM4U_NewObject<UNodeMappingContainer>(p, *name_rig, RF_Public | RF_Standalone);
+				}
+			}else {
+				ss = VRM4U_DuplicateObject<USkeletalMesh>(src_sk, p, *name_mesh);
+				base = VRM4U_DuplicateObject<USkeleton>(src_k, p, *name_skeleton);
+				if (src_rig) {
+					rr = VRM4U_NewObject<UNodeMappingContainer>(p, *name_rig, RF_Public | RF_Standalone);
+				}
+			}
+		}
+#else
+		ss = const_cast<USkeletalMesh*>(src_sk);
+		base = const_cast<USkeleton*>(src_k);
+		if (i == 1) continue;
+#endif
+
+		new_sk[i] = ss;
+		new_k[i] = base;
+		new_rig[i] = rr;
+
+		VRMSetSkeleton(ss, base);
+		VRMGetNodeMappingData(ss).Empty();
+		VRMGetNodeMappingData(ss).Add(rr);
+
+
+		if (i == 0) {
+			// org -> humanoid
+			renameToHumanoidBone(ss, vrmAssetList->VrmMetaObject, src_sk);
+		} else {
+			// humanoid -> ue4mannequin
+			renameToUE4Bone(ss, vrmAssetList->VrmMetaObject, src_sk);
+		}
+
+		ss->CalculateInvRefMatrices();
+		ss->CalculateExtendedBounds();
+#if WITH_EDITORONLY_DATA
+		ss->ConvertLegacyLODScreenSize();
+#if	UE_VERSION_OLDER_THAN(4,20,0)
+#else
+		ss->UpdateGenerateUpToData();
+#endif
+#endif
+
+#if WITH_EDITORONLY_DATA
+		base->SetPreviewMesh(ss);
+#endif
+		base->RecreateBoneTree(ss);
+
+		// retarget mode
+		for (int bon = 0; bon < base->GetReferenceSkeleton().GetRawBoneNum(); ++bon) {
+			auto type = src_k->GetBoneTranslationRetargetingMode(bon);
+			base->SetBoneTranslationRetargetingMode(bon, type);
+		}
+
+		if (i == 0) {
+			vrmAssetList->HumanoidSkeletalMesh = ss;
+			vrmAssetList->VrmHumanoidMetaObject->SkeletalMesh = ss;
+		} else {
+			vrmAssetList->UE4SkeletalMesh = ss;
+			vrmAssetList->VrmMannequinMetaObject->SkeletalMesh = ss;
+		}
+	}
+
+	// meta rename check
+	// 0: humanoid
+	// 1: ue4mannequin
+	for (int i = 0; i < 2; ++i) {
+
+		USkeleton* base = nullptr;
+		USkeletalMesh* ss = nullptr;
+		UNodeMappingContainer* rr = nullptr;
+		UVrmMetaObject* meta = nullptr;
+
+		if (i == 0) {
+			ss = vrmAssetList->HumanoidSkeletalMesh;
+			base = VRMGetSkeleton(ss);
+			meta = vrmAssetList->VrmHumanoidMetaObject;
+		} else {
+			ss = vrmAssetList->UE4SkeletalMesh;
+			base = VRMGetSkeleton(ss);
+			meta = vrmAssetList->VrmMannequinMetaObject;
+		}
+
+		int boneNo = 0;
+		TPair<FString, FString> prev;
+		for (auto& a : meta->humanoidBoneTable) {
+			if (ss==nullptr) break;
+			auto ind = VRMGetRefSkeleton(ss).FindBoneIndex(*(a.Value));
+
+			if (boneNo == 0) {
+				prev = a;
+			}
+
+			if (ind == INDEX_NONE && a.Value!="") {
+				// set prev bone name
+				a.Value = prev.Value;
+			}
+			prev = a;
+			++boneNo;
+		}
+	}
+
+
+	return true;
+}
+
+VrmConvertHumanoid::VrmConvertHumanoid()
+{
+}
+
+VrmConvertHumanoid::~VrmConvertHumanoid()
+{
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmConvertMetadata.cpp

@@ -0,0 +1,957 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvertMetadata.h"
+#include "VrmConvert.h"
+#include "VRM4ULoaderLog.h"
+
+
+#include "VrmAssetListObject.h"
+#include "VrmMetaObject.h"
+#include "VrmLicenseObject.h"
+#include "Vrm1LicenseObject.h"
+
+#if	UE_VERSION_OLDER_THAN(4,26,0)
+#include "AssetRegistryModule.h"
+#else
+#include "AssetRegistry/AssetRegistryModule.h"
+#endif
+#include "UObject/Package.h"
+#include "UObject/UObjectGlobals.h"
+
+#include "VrmJson.h"
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+bool VRMConverter::ValidateSchema() {
+	return jsonData.validateSchema();
+}
+
+bool VRMConverter::Init(const uint8* pFileData, size_t dataSize, const aiScene *pScene) {
+	aiData = pScene;
+	return InitJSON(pFileData, dataSize);
+}
+
+bool VRMConverter::InitJSON(const uint8* pFileData, size_t dataSize) {
+
+	// little endian
+	// skip size check
+	auto readData = [](const uint8* data, size_t offset) {
+		return static_cast<uint32_t>(data[offset]) |
+			(static_cast<uint32_t>(data[offset + 1]) << 8) |
+			(static_cast<uint32_t>(data[offset + 2]) << 16) |
+			(static_cast<uint32_t>(data[offset + 3]) << 24);
+		};
+
+	if (dataSize < 20 || pFileData[0] != 'g' || pFileData[1] != 'l' || pFileData[2] != 'T' || pFileData[3] != 'F') {
+		return false;
+	}
+	const uint32_t glTFversion = readData(pFileData, 4);
+	const uint32_t total_length = readData(pFileData, 8);
+	if (total_length != static_cast<uint32_t>(dataSize)) {
+		return false;
+	}
+
+
+	uint32_t jsonSize = 0;
+	if (glTFversion == 1) {
+		// glTF 1.0 GLB VRM的には不要だが念のため
+		const uint32_t content_length = readData(pFileData, 12);
+		const uint32_t content_format = readData(pFileData, 16);
+		if (content_format != 0) {
+			UE_LOG(LogVRM4ULoader, Warning, TEXT("Content format is not JSON (glTF 1.0)"));
+			return false;
+		}
+		if (20 + content_length > dataSize) {
+			UE_LOG(LogVRM4ULoader, Warning, TEXT("Content length exceeds file size"));
+			return false;
+		}
+		jsonSize = content_length;
+
+	} else if (glTFversion == 2) {
+		const uint32_t chunk_length = readData(pFileData, 12);
+		if (pFileData[16] != 'J' || pFileData[17] != 'S' || pFileData[18] != 'O' || pFileData[19] != 'N') {
+			UE_LOG(LogVRM4ULoader, Warning, TEXT("First chunk is not JSON"));
+			return false;
+		}
+		if (20 + chunk_length > dataSize) {
+			UE_LOG(LogVRM4ULoader, Warning, TEXT("Chunk length exceeds file size"));
+			return false;
+		}
+		jsonSize = chunk_length;
+	}
+	else {
+		UE_LOG(LogVRM4ULoader, Warning, TEXT("glbVersion error"));
+		return false;
+	}
+
+	return jsonData.init(pFileData + 20, jsonSize);
+}
+
+
+static UVrmLicenseObject* tmpLicense0 = nullptr;
+static UVrm1LicenseObject* tmpLicense1 = nullptr;
+void VRMConverter::GetVRMMeta(const aiScene *mScenePtr, UVrmLicenseObject *& a, UVrm1LicenseObject *& b) {
+	tmpLicense0 = nullptr;
+	tmpLicense1 = nullptr;
+	ConvertVrmMeta(nullptr, mScenePtr, nullptr, 0);
+
+	a = tmpLicense0;
+	b = tmpLicense1;
+}
+
+bool VRMConverter::ConvertVrmFirst(UVrmAssetListObject* vrmAssetList, const uint8* pData, size_t dataSize) {
+
+	// material
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		// mtoon params
+		vrmAssetList->MaterialHasMToon.Empty();
+		for (auto& mat : jsonData.doc["materials"].GetArray()) {
+			bool b = false;
+			if (mat.HasMember("extensions")) {
+				if (mat["extensions"].HasMember("VRMC_materials_mtoon")) {
+					b = true;
+				}
+			}
+			vrmAssetList->MaterialHasMToon.Add(b);
+		}
+	} else {
+		// alpha cutoff flag
+		vrmAssetList->MaterialHasAlphaCutoff.Empty();
+		if (jsonData.IsEnable()) {
+			for (auto& mat : jsonData.doc["materials"].GetArray()) {
+				bool b = false;
+				if (mat.HasMember("alphaCutoff")) {
+					b = true;
+				}
+				vrmAssetList->MaterialHasAlphaCutoff.Add(b);
+			}
+		}
+	}
+
+	return true;
+}
+
+
+bool VRMConverter::ConvertVrmMeta(UVrmAssetListObject* vrmAssetList, const aiScene* mScenePtr, const uint8* pData, size_t dataSize) {
+
+	//auto GetDataJSON = [](const RAPIDJSON_NAMESPACE::Value& root, std::initializer_list<const char*> path) -> std::optional<const RAPIDJSON_NAMESPACE::Value*> {
+	auto GetDataJSON = [](const RAPIDJSON_NAMESPACE::Value& root, std::initializer_list<const char*> path) -> std::pair<bool, const RAPIDJSON_NAMESPACE::Value*> {
+		const RAPIDJSON_NAMESPACE::Value* current = &root;
+
+		for (const char* key : path) {
+			if (current->IsObject() == false) {
+				return { false, nullptr };
+			}
+			auto itr = current->FindMember(key);
+			if (itr == current->MemberEnd()) {
+				return { false, nullptr };
+			}
+			current = &itr->value;
+		}
+		return { true, current };
+		};
+
+
+	tmpLicense0 = nullptr;
+	tmpLicense1 = nullptr;
+	if (mScenePtr == nullptr || mScenePtr->mVRMMeta == nullptr) {
+		UE_LOG(LogVRM4ULoader, Warning, TEXT("VRM metadata is missing from the imported scene."));
+		return false;
+	}
+
+	VRM::VRMMetadata* SceneMeta = reinterpret_cast<VRM::VRMMetadata*>(mScenePtr->mVRMMeta);
+
+	UVrmMetaObject* MetaObject = nullptr;
+	UVrmLicenseObject* lic0 = nullptr;
+	UVrm1LicenseObject* lic1 = nullptr;
+
+	{
+		UPackage* package = GetTransientPackage();
+
+		if (vrmAssetList) {
+			package = vrmAssetList->Package;
+		}
+
+		if (package == GetTransientPackage() || vrmAssetList == nullptr) {
+			MetaObject = VRM4U_NewObject<UVrmMetaObject>(package, NAME_None, EObjectFlags::RF_Public | RF_Transient, NULL);
+			if (VRMConverter::Options::Get().IsVRM10Model()) {
+				lic1 = VRM4U_NewObject<UVrm1LicenseObject>(package, NAME_None, EObjectFlags::RF_Public | RF_Transient, NULL);
+			} else {
+				lic0 = VRM4U_NewObject<UVrmLicenseObject>(package, NAME_None, EObjectFlags::RF_Public | RF_Transient, NULL);
+			}
+		}
+		else {
+
+			if (vrmAssetList->ReimportBase) {
+				MetaObject = vrmAssetList->ReimportBase->VrmMetaObject;
+				lic0 = vrmAssetList->ReimportBase->VrmLicenseObject;
+				lic1 = vrmAssetList->ReimportBase->Vrm1LicenseObject;
+			}
+			if (MetaObject == nullptr) {
+				MetaObject = VRM4U_NewObject<UVrmMetaObject>(package, *(FString(TEXT("VM_")) + vrmAssetList->BaseFileName + TEXT("_VrmMeta")), EObjectFlags::RF_Public | EObjectFlags::RF_Standalone);
+			}
+
+			if (VRMConverter::Options::Get().IsVRM10Model()) {
+				if (lic1 == nullptr) {
+					lic1 = VRM4U_NewObject<UVrm1LicenseObject>(package, *(FString(TEXT("VL_")) + vrmAssetList->BaseFileName + TEXT("_Vrm1License")), EObjectFlags::RF_Public | EObjectFlags::RF_Standalone);
+				}
+			}
+			else {
+				if (lic0 == nullptr) {
+					lic0 = VRM4U_NewObject<UVrmLicenseObject>(package, *(FString(TEXT("VL_")) + vrmAssetList->BaseFileName + TEXT("_VrmLicense")), EObjectFlags::RF_Public | EObjectFlags::RF_Standalone);
+				}
+			}
+
+		}
+		if (MetaObject) MetaObject->MarkPackageDirty();
+		if (lic0) lic0->MarkPackageDirty();
+		if (lic1) lic1->MarkPackageDirty();
+
+		if (vrmAssetList) {
+			vrmAssetList->VrmMetaObject = MetaObject;
+			vrmAssetList->VrmLicenseObject = lic0;
+			vrmAssetList->Vrm1LicenseObject = lic1;
+			MetaObject->VrmAssetListObject = vrmAssetList;
+		}
+		else {
+			tmpLicense0 = lic0;
+			tmpLicense1 = lic1;
+		}
+
+		if (VRMConverter::Options::Get().IsVRM10Model()) {
+		}
+
+	}
+
+	if (SceneMeta == nullptr) {
+		return false;
+	}
+
+
+	MetaObject->Version = 0;
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		MetaObject->Version = 1;
+	}
+
+	// bone
+	if (VRMConverter::Options::Get().IsVRM10Model()){
+		// VRM10
+		if (pData && dataSize) {
+			auto &humanBone = jsonData.doc["extensions"]["VRMC_vrm"]["humanoid"]["humanBones"];
+			auto &origBone = jsonData.doc["nodes"];
+
+			for (auto& g : humanBone.GetObject()) {
+				int node = g.value["node"].GetInt();
+
+				if (node >= 0 && node < (int)origBone.Size()) {
+					FString str = UTF8_TO_TCHAR(origBone[node]["name"].GetString());
+
+					if (VRMConverter::Options::Get().IsForceOriginalBoneName()) {
+					}else{
+						str = VRMUtil::MakeName(str, true);
+					}
+
+					MetaObject->humanoidBoneTable.Add(UTF8_TO_TCHAR(g.name.GetString())) = str;
+				} else {
+					MetaObject->humanoidBoneTable.Add(UTF8_TO_TCHAR(g.name.GetString())) = "";
+				}
+			}
+		}
+	} else {
+		for (auto& a : SceneMeta->humanoidBone) {
+			if (FString(a.humanBoneName.C_Str()) == "") {
+				continue;
+			}
+			FString str = UTF8_TO_TCHAR(a.nodeName.C_Str());
+			if (VRMConverter::Options::Get().IsForceOriginalBoneName()) {
+			} else {
+				str = VRMUtil::MakeName(str, true);
+			}
+			MetaObject->humanoidBoneTable.Add(UTF8_TO_TCHAR(a.humanBoneName.C_Str())) = str;
+		}
+	}
+
+	//shape
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		// VRM10
+		auto &presets = jsonData.doc["extensions"]["VRMC_vrm"]["expressions"]["preset"];
+
+		MetaObject->BlendShapeGroup.SetNum(presets.Size());
+		int presetIndex = -1;
+		for (auto& presetData : presets.GetObject()){
+			++presetIndex;
+
+			MetaObject->BlendShapeGroup[presetIndex].name = UTF8_TO_TCHAR(presetData.name.GetString()); // ex happy
+
+			auto &bindData = presetData.value["morphTargetBinds"];
+
+			MetaObject->BlendShapeGroup[presetIndex].BlendShape.SetNum(bindData.Size());
+
+			MetaObject->BlendShapeGroup[presetIndex].isBinary = presetData.value["isBinary"].GetBool();
+			MetaObject->BlendShapeGroup[presetIndex].overrideBlink = presetData.value["overrideBlink"].GetString();
+			MetaObject->BlendShapeGroup[presetIndex].overrideLookAt = presetData.value["overrideLookAt"].GetString();
+			MetaObject->BlendShapeGroup[presetIndex].overrideMouth = presetData.value["overrideMouth"].GetString();
+
+			int bindIndex = -1;
+			for (auto &bind : bindData.GetArray()) {
+				++bindIndex;
+
+				//m->BlendShapeGroup[presetIndex].BlendShape[bindIndex].morphTargetName = UTF8_TO_TCHAR(aiGroup.bind[b].blendShapeName.C_Str());
+				auto &targetShape = MetaObject->BlendShapeGroup[presetIndex].BlendShape[bindIndex];
+				//targetShape.morphTargetName = UTF8_TO_TCHAR(aiGroup.bind[b].blendShapeName.C_Str());
+				//targetShape.meshName = UTF8_TO_TCHAR(aiGroup.bind[b].meshName.C_Str());
+				//targetShape.nodeName = UTF8_TO_TCHAR(aiGroup.bind[b].nodeName.C_Str());
+				//targetShape.weight = aiGroup.bind[b].weight;
+				targetShape.shapeIndex = bind["index"].GetInt();
+
+				{
+					int tmpNodeID = bind["node"].GetInt(); // adjust offset
+					auto& jsonNode = jsonData.doc["nodes"];
+
+					if (tmpNodeID >= 0 && tmpNodeID < (int)jsonNode.Size()) {
+						if (GetDataJSON(jsonNode.GetArray()[tmpNodeID], { "mesh" }).second){
+							int tmpMeshID = jsonNode.GetArray()[tmpNodeID]["mesh"].GetInt();
+
+							//meshID offset
+							int offset = 0;
+							for (int meshNo = 0; meshNo < tmpMeshID; ++meshNo) {
+								if (jsonData.doc["meshes"].GetArray()[meshNo].HasMember("primitives") == false) continue;
+								//offset += jsonData.doc["meshes"].GetArray()[meshNo]["primitives"].Size() - 1;
+							}
+							targetShape.meshID = tmpMeshID + offset;
+						}
+					}
+				}
+
+				if (targetShape.meshID < (int)jsonData.doc["meshes"].Size()) {
+					{
+						auto& targetNames = jsonData.doc["meshes"].GetArray()[targetShape.meshID]["extras"]["targetNames"];
+						if (targetShape.shapeIndex < (int)targetNames.Size()) {
+							targetShape.morphTargetName = UTF8_TO_TCHAR(targetNames.GetArray()[targetShape.shapeIndex].GetString());
+						}
+					}
+
+					{
+						auto& tmp = jsonData.doc["meshes"][targetShape.meshID]["primitives"]["extras"]["targetNames"];
+						if (targetShape.shapeIndex < (int)tmp.Size()) {
+							targetShape.morphTargetName = tmp[targetShape.shapeIndex].GetString();
+
+							if (VRMConverter::Options::Get().IsForceOriginalMorphTargetName()) {
+							}else{
+								targetShape.morphTargetName = VRMUtil::MakeName(targetShape.morphTargetName);
+							}
+						}
+					}
+					targetShape.meshName = UTF8_TO_TCHAR(jsonData.doc["meshes"].GetArray()[targetShape.meshID]["name"].GetString());
+				}
+			}
+		}
+	} else {
+		MetaObject->BlendShapeGroup.SetNum(SceneMeta->blendShapeGroupNum);
+		for (int i = 0; i < SceneMeta->blendShapeGroupNum; ++i) {
+			auto& aiGroup = SceneMeta->blendShapeGroup[i];
+
+			FString s = UTF8_TO_TCHAR(aiGroup.groupName.C_Str());
+			if (VRMConverter::Options::Get().IsRemoveBlendShapeGroupPrefix()) {
+				int32 ind = 0;
+				if (s.FindLastChar('.', ind)) {
+					if (ind < s.Len() - 1) {
+						s = s.RightChop(ind+1);
+					}
+				}
+			}
+			MetaObject->BlendShapeGroup[i].name = s;
+
+			MetaObject->BlendShapeGroup[i].BlendShape.SetNum(aiGroup.bindNum);
+			for (int b = 0; b < aiGroup.bindNum; ++b) {
+				auto& bind = MetaObject->BlendShapeGroup[i].BlendShape[b];
+				bind.morphTargetName = UTF8_TO_TCHAR(aiGroup.bind[b].blendShapeName.C_Str());
+				bind.meshName = UTF8_TO_TCHAR(aiGroup.bind[b].meshName.C_Str());
+				bind.nodeName = UTF8_TO_TCHAR(aiGroup.bind[b].nodeName.C_Str());
+				bind.weight = aiGroup.bind[b].weight;
+				bind.meshID = aiGroup.bind[b].meshID;
+				bind.shapeIndex = aiGroup.bind[b].shapeIndex;
+
+				if (VRMConverter::Options::Get().IsForceOriginalMorphTargetName()) {
+				}else{
+					bind.morphTargetName = VRMUtil::MakeName(bind.morphTargetName);
+				}
+			}
+		}
+	}
+
+	// tmp shape...
+	if (pData && vrmAssetList) {
+		if (VRMConverter::Options::Get().IsVRM10Model()) {
+		} else {
+			TMap<FString, FString> ParamTable;
+
+			ParamTable.Add("_Color", "mtoon_Color");
+			ParamTable.Add("_RimColor", "mtoon_RimColor");
+			ParamTable.Add("_EmisionColor", "mtoon_EmissionColor");
+			ParamTable.Add("_OutlineColor", "mtoon_OutColor");
+
+			auto groupp = GetDataJSON(jsonData.doc, {"extensions", "VRM", "blendShapeMaster", "blendShapeGroups"});
+			if (groupp.second) {
+				const auto &group = *(groupp.second);
+				for (int i = 0; i < (int)group.Size(); ++i) {
+					if (MetaObject->BlendShapeGroup.IsValidIndex(i) == false) break;
+
+					auto& bind = MetaObject->BlendShapeGroup[i];
+					auto& shape = group[i];
+
+					if (shape.HasMember("materialValues") == false) continue;
+					if (shape["materialValues"].IsArray() == false) continue;
+
+					for (auto& mat : shape["materialValues"].GetArray()) {
+						if (mat.IsObject() == false) continue;
+						if (mat.HasMember("materialName") == false || mat.HasMember("propertyName") == false || mat.HasMember("targetValue") == false) continue;
+
+						FVrmBlendShapeMaterialList mlist;
+						mlist.materialName = mat["materialName"].GetString();
+						mlist.propertyName = mat["propertyName"].GetString();
+
+						FString* tmp = vrmAssetList->MaterialNameOrigToAsset.Find(NormalizeFileName(mlist.materialName));
+						if (tmp == nullptr) {
+							continue;
+						}
+						mlist.materialName = *tmp;
+						if (ParamTable.Find(mlist.propertyName)) {
+							mlist.propertyName = ParamTable[mlist.propertyName];
+						}
+						mlist.color = FLinearColor(
+							mat["targetValue"].GetArray()[0].GetFloat(),
+							mat["targetValue"].GetArray()[1].GetFloat(),
+							mat["targetValue"].GetArray()[2].GetFloat(),
+							mat["targetValue"].GetArray()[3].GetFloat());
+						bind.MaterialList.Add(mlist);
+					}
+				}
+			}
+		}
+	}
+
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		auto pp = GetDataJSON(jsonData.doc, { "extensions", "VRMC_springBone", "springs"});
+		if (pp.second) {
+			const auto& jsonSpring = *pp.second;
+
+			auto& sMeta = MetaObject->VRM1SpringBoneMeta.Springs;
+			sMeta.SetNum(jsonSpring.Size());
+			for (uint32 springNo = 0; springNo < jsonSpring.Size(); ++springNo) {
+				auto& jsonJoints = jsonSpring.GetArray()[springNo]["joints"];
+				auto& dstSpring = sMeta[springNo];
+				dstSpring.joints.SetNum(jsonJoints.Size());
+				for (uint32 jointNo = 0; jointNo < jsonJoints.Size(); ++jointNo) {
+					auto& jj = jsonJoints.GetArray()[jointNo];
+
+					auto& s = dstSpring.joints[jointNo];
+
+					s.dragForce = jj["dragForce"].GetFloat();
+					s.gravityPower = jj["gravityPower"].GetFloat();
+					if (jj.HasMember("gravityDir")) {
+						if (jj["gravityDir"].GetArray().Size() == 3) {
+							s.gravityDir.X = jj["gravityDir"][0].GetFloat();
+							s.gravityDir.Y = jj["gravityDir"][1].GetFloat();
+							s.gravityDir.Z = jj["gravityDir"][2].GetFloat();
+						}
+					}
+					int node = jj["node"].GetInt();
+					s.boneNo = -1;// node; // reset after bone optimize
+
+					{
+						auto& jsonNode = jsonData.doc["nodes"];
+						if (node >= 0 && node < (int)jsonNode.Size()) {
+							s.boneName = VRMUtil::GetSafeNewName(UTF8_TO_TCHAR(jsonNode[node]["name"].GetString()));
+						}
+					}
+
+					s.hitRadius = jj["hitRadius"].GetFloat();
+					s.stiffness = jj["stiffness"].GetFloat();
+
+				}
+				auto& jsonColliderGroups = jsonSpring.GetArray()[springNo]["colliderGroups"];
+
+				dstSpring.colliderGroups.SetNum(jsonColliderGroups.Size());
+				for (uint32 colNo = 0; colNo < jsonColliderGroups.Size(); ++colNo) {
+					dstSpring.colliderGroups[colNo] = jsonColliderGroups[colNo].GetInt();
+				}
+			}
+
+			auto& colMeta = MetaObject->VRM1SpringBoneMeta.Colliders;
+			auto& jsonColliders = jsonData.doc["extensions"]["VRMC_springBone"]["colliders"];
+			colMeta.SetNum(jsonColliders.Size());
+			for (int colNo = 0; colNo < (int)jsonColliders.Size(); ++colNo) {
+				auto& jsonCol = jsonColliders[colNo];
+				auto& cMeta = colMeta[colNo];
+
+				int node = jsonCol["node"].GetInt();
+				{
+					auto& jsonNode = jsonData.doc["nodes"];
+					if (node >= 0 && node < (int)jsonNode.Size()) {
+						cMeta.boneName = VRMUtil::GetSafeNewName(UTF8_TO_TCHAR(jsonNode[node]["name"].GetString()));
+					}
+				}
+				if (jsonCol["shape"].HasMember("sphere")) {
+					if (GetDataJSON(jsonCol, { "shape", "sphere", "offset" }).second && GetDataJSON(jsonCol, { "shape", "sphere", "radius" }).second) {
+						cMeta.offset.Set(
+							jsonCol["shape"]["sphere"]["offset"][0].GetFloat(),
+							jsonCol["shape"]["sphere"]["offset"][1].GetFloat(),
+							jsonCol["shape"]["sphere"]["offset"][2].GetFloat());
+						cMeta.radius = jsonCol["shape"]["sphere"]["radius"].GetFloat();
+						cMeta.shapeType = TEXT("sphere");
+					}
+				}
+
+				if (jsonCol["shape"].HasMember("capsule")) {
+					if (GetDataJSON(jsonCol, { "shape", "capsule", "offset" }).second && GetDataJSON(jsonCol, { "shape", "capsule", "radius" }).second && GetDataJSON(jsonCol, { "shape", "capsule", "tail" }).second) {
+						cMeta.offset.Set(
+							jsonCol["shape"]["capsule"]["offset"][0].GetFloat(),
+							jsonCol["shape"]["capsule"]["offset"][1].GetFloat(),
+							jsonCol["shape"]["capsule"]["offset"][2].GetFloat());
+						cMeta.radius = jsonCol["shape"]["capsule"]["radius"].GetFloat();
+						cMeta.tail.Set(
+							jsonCol["shape"]["capsule"]["tail"][0].GetFloat(),
+							jsonCol["shape"]["capsule"]["tail"][1].GetFloat(),
+							jsonCol["shape"]["capsule"]["tail"][2].GetFloat());
+						cMeta.shapeType = TEXT("capsule");
+					}
+				}
+			}
+
+
+			{
+				auto& cogMeta = MetaObject->VRM1SpringBoneMeta.ColliderGroups;
+				auto& jsonColliderGroups = jsonData.doc["extensions"]["VRMC_springBone"]["colliderGroups"];
+
+				cogMeta.SetNum(jsonColliderGroups.Size());
+				for (int cgNo = 0; cgNo < (int)jsonColliderGroups.Size(); ++cgNo) {
+
+					cogMeta[cgNo].name = jsonColliderGroups[cgNo].GetString();
+					for (int colNo = 0; colNo < (int)jsonColliderGroups[cgNo]["colliders"].Size(); ++colNo) {
+						cogMeta[cgNo].colliders.Add(jsonColliderGroups[cgNo]["colliders"][colNo].GetInt());
+					}
+				}
+			}
+
+			//sMeta.SetNum(jsonSpring.Size());
+
+			//auto& jsonColliderGroups = jsonSpring.GetArray()[springNo]["collidergroups"];
+		}
+	} else {
+		// spring
+		MetaObject->VRMSpringMeta.SetNum(SceneMeta->springNum);
+		for (int i = 0; i < SceneMeta->springNum; ++i) {
+			const auto& vrms = SceneMeta->springs[i];
+
+			auto& s = MetaObject->VRMSpringMeta[i];
+			s.stiffness = vrms.stiffness;
+			s.gravityPower = vrms.gravityPower;
+			s.gravityDir.Set(vrms.gravityDir[0], vrms.gravityDir[1], vrms.gravityDir[2]);
+			s.dragForce = vrms.dragForce;
+			s.hitRadius = vrms.hitRadius;
+
+			s.bones.SetNum(vrms.boneNum);
+			s.boneNames.SetNum(vrms.boneNum);
+			for (int b = 0; b < vrms.boneNum; ++b) {
+				s.bones[b] = vrms.bones[b];
+				s.boneNames[b] = UTF8_TO_TCHAR(vrms.bones_name[b].C_Str());
+			}
+
+
+			s.ColliderIndexArray.SetNum(vrms.colliderGourpNum);
+			for (int c = 0; c < vrms.colliderGourpNum; ++c) {
+				s.ColliderIndexArray[c] = vrms.colliderGroups[c];
+			}
+		}
+
+		//collider
+		MetaObject->VRMColliderMeta.SetNum(SceneMeta->colliderGroupNum);
+		for (int i = 0; i < SceneMeta->colliderGroupNum; ++i) {
+			const auto& vrmc = SceneMeta->colliderGroups[i];
+
+			auto& c = MetaObject->VRMColliderMeta[i];
+			c.bone = vrmc.node;
+			c.boneName = UTF8_TO_TCHAR(vrmc.node_name.C_Str());
+
+			c.collider.SetNum(vrmc.colliderNum);
+			for (int b = 0; b < vrmc.colliderNum; ++b) {
+				c.collider[b].offset = FVector(vrmc.colliders[b].offset[0], vrmc.colliders[b].offset[1], vrmc.colliders[b].offset[2]);
+				c.collider[b].radius = vrmc.colliders[b].radius;
+			}
+		}
+	}
+
+	//constraint
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		// VRM10
+		auto& nodes = jsonData.doc["nodes"];
+		for (auto& node : nodes.GetArray()) {
+
+			auto pp = GetDataJSON(jsonData.doc, { "extensions", "VRMC_node_constraint", "constraint" });
+
+			if (!pp.second) continue;
+			auto& constraint = *pp.second;
+
+			if (constraint.HasMember("roll")) {
+				FVRMConstraintRoll c;
+
+				c.source = constraint["roll"]["source"].GetInt();
+				if (c.source < (int)nodes.Size()) {
+					c.sourceName = nodes.GetArray()[c.source]["name"].GetString();
+				}
+				c.rollAxis = constraint["roll"]["rollAxis"].GetString();
+				c.weight = constraint["roll"]["weight"].GetFloat();
+
+				FString n = node["name"].GetString();
+				if (VRMConverter::Options::Get().IsForceOriginalBoneName() == false) {
+					n = VRMUtil::MakeName(n, true);
+					c.sourceName = VRMUtil::MakeName(c.sourceName, true);
+				}
+
+				FVRMConstraint cc;
+				cc.constraintRoll = c;
+				cc.type = EVRMConstraintType::Roll;
+
+				MetaObject->VRMConstraintMeta.Add(n, cc);
+			}
+			if (constraint.HasMember("aim")) {
+				FVRMConstraintAim c;
+
+				c.source = constraint["aim"]["source"].GetInt();
+				if (c.source < (int)nodes.Size()) {
+					c.sourceName = nodes.GetArray()[c.source]["name"].GetString();
+				}
+				c.aimAxis = constraint["aim"]["aimAxis"].GetString();
+				c.weight = constraint["aim"]["weight"].GetFloat();
+
+				FString n = node["name"].GetString();
+				if (VRMConverter::Options::Get().IsForceOriginalBoneName() == false) {
+					n = VRMUtil::MakeName(n, true);
+					c.sourceName = VRMUtil::MakeName(c.sourceName, true);
+				}
+
+				FVRMConstraint cc;
+				cc.constraintAim = c;
+				cc.type = EVRMConstraintType::Aim;
+
+				MetaObject->VRMConstraintMeta.Add(n, cc);
+			}
+			if (constraint.HasMember("rotation")) {
+				FVRMConstraintRotation c;
+
+				c.source = constraint["rotation"]["source"].GetInt();
+				if (c.source < (int)nodes.Size()) {
+					c.sourceName = nodes.GetArray()[c.source]["name"].GetString();
+				}
+				c.weight = constraint["rotation"]["weight"].GetFloat();
+
+				FString n = node["name"].GetString();
+				if (VRMConverter::Options::Get().IsForceOriginalBoneName() == false) {
+					n = VRMUtil::MakeName(n, true);
+					c.sourceName = VRMUtil::MakeName(c.sourceName, true);
+				}
+
+				FVRMConstraint cc;
+				cc.constraintRotation = c;
+				cc.type = EVRMConstraintType::Rotation;
+
+				MetaObject->VRMConstraintMeta.Add(n, cc);
+			}
+		}
+	}
+
+	// vrma
+	if (VRMConverter::Options::Get().IsVRMAModel()) {
+		if (pData && dataSize) {
+			{
+
+				auto ppBone = GetDataJSON(jsonData.doc, { "extensions", "VRMC_vrm_animation", "humanoid", "humanBones" });
+
+				if (ppBone.second) {
+					auto& humanBone = *ppBone.second;
+					auto& origBone = jsonData.doc["nodes"];
+
+					for (auto& g : humanBone.GetObject()) {
+						int nodeNo = g.value["node"].GetInt();
+
+						if (FString(g.name.GetString()) == "") {
+							continue;
+						}
+
+						if (nodeNo >= 0 && nodeNo < (int)origBone.Size()) {
+							MetaObject->humanoidBoneTable.Add(UTF8_TO_TCHAR(g.name.GetString())) = UTF8_TO_TCHAR(origBone[nodeNo]["name"].GetString());
+						}
+						else {
+							MetaObject->humanoidBoneTable.Add(UTF8_TO_TCHAR(g.name.GetString())) = "";
+						}
+					}
+				}
+			}
+			{
+				auto ppPreset = GetDataJSON(jsonData.doc, { "extensions", "VRMC_vrm_animation", "expressions", "preset" });
+
+				if (ppPreset.second) {
+					auto& p = *ppPreset.second;
+					for (auto& m : p.GetObject()) {
+						FVRMAnimationExpressionPreset meta;
+						meta.expressionName = m.name.GetString();
+						meta.expressionNode = m.value["node"].GetInt();
+						meta.expressionNodeName = jsonData.doc["nodes"].GetArray()[meta.expressionNode]["name"].GetString();
+
+						vrmAssetList->VrmMetaObject->VRMAnimationMeta.expressionPreset.Add(meta);
+					}
+				}
+			}
+			{
+				auto pp = GetDataJSON(jsonData.doc, { "extensions", "VRMC_vrm_animation", "lookAt", "node" });
+				if (pp.second) {
+					auto& at = *pp.second;
+					if (at.IsInt()) {
+						vrmAssetList->VrmMetaObject->VRMAnimationMeta.lookAt.lookAtNode = at.GetInt();
+					}
+				}
+			}
+		}
+	}
+
+
+	// license
+		// license
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		auto ppMeta = GetDataJSON(jsonData.doc, { "extensions", "VRMC_vrm_animation", "meta" });
+
+		if (ppMeta.second) {
+			auto& meta = *ppMeta.second;
+			for (auto m = meta.MemberBegin(); m != meta.MemberEnd(); ++m) {
+
+				FString key = UTF8_TO_TCHAR((*m).name.GetString());
+
+				if (key.Find("allow") == 0) {
+					FLicenseBoolDataPair p;
+					p.key = key;
+					p.value = (*m).value.GetBool();
+					lic1->LicenseBool.Add(p);
+				} else if (key == "thumbnailImage") {
+					if (vrmAssetList) {
+						int t = (*m).value.GetInt();
+						if (t >= 0 && t < vrmAssetList->Textures.Num()) {
+							lic1->thumbnail = vrmAssetList->Textures[t];
+#if WITH_EDITORONLY_DATA
+							vrmAssetList->SmallThumbnailTexture = lic1->thumbnail;
+#endif
+						}
+					}
+				} else {
+					if ((*m).value.IsArray()) {
+						int ind = 0;
+						bool bFound = false;
+						for (auto& a : lic1->LicenseStringArray) {
+							if (a.key != key) {
+								++ind;
+								continue;
+							}
+							bFound = true;
+							break;
+						}
+						if (bFound == false) {
+							ind = lic1->LicenseStringArray.AddDefaulted();
+							lic1->LicenseStringArray[ind].key = key;
+						}
+						for (auto& a : (*m).value.GetArray()) {
+							lic1->LicenseStringArray[ind].value.Add(UTF8_TO_TCHAR(a.GetString()));
+						}
+					} else {
+						FLicenseStringDataPair p;
+						p.key = key;
+						p.value = UTF8_TO_TCHAR((*m).value.GetString());
+						lic1->LicenseString.Add(p);
+					}
+				}
+			}
+		}
+	}else {
+		struct TT {
+			FString key;
+			FString &dst;
+		};
+		const TT table[] = {
+			{TEXT("version"),		lic0->version},
+			{TEXT("author"),			lic0->author},
+			{TEXT("contactInformation"),	lic0->contactInformation},
+			{TEXT("reference"),		lic0->reference},
+				// texture skip
+			{TEXT("title"),			lic0->title},
+			{TEXT("allowedUserName"),	lic0->allowedUserName},
+			{TEXT("violentUsageName"),	lic0->violentUsageName},
+			{TEXT("sexualUsageName"),	lic0->sexualUsageName},
+			{TEXT("commercialUsageName"),	lic0->commercialUsageName},
+			{TEXT("otherPermissionUrl"),		lic0->otherPermissionUrl},
+			{TEXT("licenseName"),			lic0->licenseName},
+			{TEXT("otherLicenseUrl"),		lic0->otherLicenseUrl},
+
+			{TEXT("violentUssageName"),	lic0->violentUsageName},
+			{TEXT("sexualUssageName"),	lic0->sexualUsageName},
+			{TEXT("commercialUssageName"),	lic0->commercialUsageName},
+		};
+		for (int i = 0; i < SceneMeta->license.licensePairNum; ++i) {
+
+			auto &p = SceneMeta->license.licensePair[i];
+
+			for (auto &t : table) {
+				if (t.key == p.Key.C_Str()) {
+					t.dst = UTF8_TO_TCHAR(p.Value.C_Str());
+				}
+			}
+			if (vrmAssetList) {
+				if (FString(TEXT("texture")) == p.Key.C_Str()) {
+					int t = FCString::Atoi(*FString(p.Value.C_Str()));
+					if (t >= 0 && t < vrmAssetList->Textures.Num()) {
+						lic0->thumbnail = vrmAssetList->Textures[t];
+					}
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+bool VRMConverter::ConvertVrmMetaPost(UVrmAssetListObject* vrmAssetList, const aiScene* mScenePtr, const uint8* pData, size_t dataSize) {
+
+	//sort
+	if (vrmAssetList && vrmAssetList->VrmMetaObject){
+		auto& t = vrmAssetList->VrmMetaObject->humanoidBoneTable;
+		if (vrmAssetList->SkeletalMesh) {
+			auto& rk = VRMGetRefSkeleton(vrmAssetList->SkeletalMesh);
+			for (int i = 0; i < t.Num() - 1; ++i) {
+
+				t.ValueSort([&rk](const FString A, const FString B) {
+					return rk.FindBoneIndex(*A) < rk.FindBoneIndex(*B);
+					}
+				);
+			}
+		}
+	}
+
+	if (VRMConverter::Options::Get().IsGenerateHumanoidRenamedMesh()) {
+		UPackage* package = GetTransientPackage();
+
+		if (vrmAssetList) {
+			package = vrmAssetList->Package;
+		}
+
+		UVrmMetaObject* m = vrmAssetList->VrmMetaObject;
+
+		//m2 = VRM4U_NewObject<UVrmMetaObject>(package, *(FString(TEXT("VM_")) + vrmAssetList->BaseFileName + TEXT("_VrmMeta")), EObjectFlags::RF_Public | EObjectFlags::RF_Standalone);
+		{
+			TMap<FString, FString> BoneTable;
+
+			UVrmMetaObject* m2 = VRM4U_DuplicateObject<UVrmMetaObject>(m, package, *(FString(TEXT("VM_")) + vrmAssetList->BaseFileName + TEXT("_ue4mannequin_VrmMeta")));
+			vrmAssetList->VrmMannequinMetaObject = m2;
+			for (auto& a : m2->humanoidBoneTable) {
+				auto c = VRMUtil::table_ue4_vrm.FindByPredicate([a](const VRMUtil::VRMBoneTable& data) {
+					// meta humanoid key == utiltable vrmbone
+					return a.Key.ToLower() == data.BoneVRM.ToLower();
+				});
+				if (c) {
+					if (a.Value != "") {
+						BoneTable.Add(a.Value, c->BoneUE4);
+						a.Value = c->BoneUE4;
+					}
+				}
+			}
+			for (auto& a : m2->VRMColliderMeta) {
+				auto c = BoneTable.Find(a.boneName);
+				if (c) {
+					if (a.boneName != "") {
+						a.boneName = *c;
+					}
+				}
+			}
+			for (auto& a : m2->VRMSpringMeta) {
+				for (auto& b : a.boneNames) {
+					auto c = BoneTable.Find(b);
+					//auto c = VRMUtil::table_ue4_vrm.FindByPredicate([b](const VRMUtil::VRMBoneTable& data) { return b.ToLower() == data.BoneVRM.ToLower(); });
+					if (c) {
+						if (b != "") {
+							b = *c;
+						}
+					}
+				}
+			}
+		}
+
+		{
+			TMap<FString, FString> BoneTable;
+
+			UVrmMetaObject* m3 = VRM4U_DuplicateObject<UVrmMetaObject>(m, package, *(FString(TEXT("VM_")) + vrmAssetList->BaseFileName + TEXT("_humanoid_VrmMeta")));
+			vrmAssetList->VrmHumanoidMetaObject = m3;
+			for (auto& a : m3->humanoidBoneTable) {
+				if (a.Value != "") {
+					BoneTable.Add(a.Value, a.Key);
+					a.Value = a.Key;
+				}
+			}
+			for (auto& a : m3->VRMColliderMeta) {
+				auto c = BoneTable.Find(a.boneName);
+				if (c) {
+					if (a.boneName != "") {
+						a.boneName = *c;
+					}
+				}
+			}
+			for (auto& a : m3->VRMSpringMeta) {
+				for (auto& b : a.boneNames) {
+					auto c = BoneTable.Find(b);
+					//auto c = VRMUtil::table_ue4_vrm.FindByPredicate([b](const VRMUtil::VRMBoneTable& data) { return b.ToLower() == data.BoneVRM.ToLower(); });
+					if (c) {
+						if (b != "") {
+							b = *c;
+						}
+					}
+				}
+			}
+		}
+	}
+
+
+	// vrm1
+	if (vrmAssetList->SkeletalMesh){
+		auto& sk = vrmAssetList->SkeletalMesh;
+		auto& refSkeleton = VRMGetRefSkeleton(sk);
+
+		{
+			auto& sMeta = vrmAssetList->VrmMetaObject->VRM1SpringBoneMeta.Springs;
+
+			for (auto& s : sMeta) {
+				for (auto& j : s.joints) {
+					j.boneNo = refSkeleton.FindBoneIndex(*j.boneName);
+				}
+			}
+		}
+		{
+			auto& cMeta = vrmAssetList->VrmMetaObject->VRM1SpringBoneMeta.Colliders;
+
+			for (auto& s : cMeta) {
+				s.boneNo = refSkeleton.FindBoneIndex(*s.boneName);
+			}
+		}
+	}
+
+	return true;
+}
+
+
+VrmConvertMetadata::VrmConvertMetadata()
+{
+}
+
+VrmConvertMetadata::~VrmConvertMetadata()
+{
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmConvertMorphTarget.cpp

@@ -0,0 +1,500 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvertMorphTarget.h"
+#include "VrmConvert.h"
+
+#include "VrmAssetListObject.h"
+#include "LoaderBPFunctionLibrary.h"
+#include "VRM4ULoaderLog.h"
+
+#include "Engine/SkeletalMesh.h"
+#include "RenderingThread.h"
+#include "Rendering/SkeletalMeshModel.h"
+#include "Rendering/SkeletalMeshLODModel.h"
+#include "Rendering/SkeletalMeshLODRenderData.h"
+#include "Rendering/SkeletalMeshRenderData.h"
+#include "Animation/MorphTarget.h"
+
+#include "PhysicsEngine/PhysicsAsset.h"
+#include "PhysicsEngine/PhysicsConstraintTemplate.h"
+
+#include "Async/ParallelFor.h"
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+namespace {
+#if WITH_EDITOR
+	void LocalPopulateDeltas(UMorphTarget* Morph, const TArray<FMorphTargetDelta>& Deltas, const int32 LODIndex, const TArray<struct FSkelMeshSection>& Sections)
+	{
+		Morph->PopulateDeltas(Deltas, LODIndex, Sections);
+	}
+#else
+	void LocalPopulateDeltas(USkeletalMesh* sk, UMorphTarget * Morph, const TArray<FMorphTargetDelta> & Deltas, const int32 LODIndex, const bool bCompareNormal = false, const bool bGeneratedByReductionSetting = false, const float PositionThreshold = THRESH_POINTS_ARE_NEAR)
+	{
+
+		//TIndirectArray<FSkeletalMeshLODRenderData> LODRenderData;
+		const auto& Sections = sk->GetResourceForRendering()->LODRenderData[0].RenderSections;
+
+		//FSkeletalMeshLODRenderData& rd = sk->GetResourceForRendering()->LODRenderData[0];
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+		auto& MorphLODModels = Morph->MorphLODModels;
+#else
+		auto& MorphLODModels = Morph->GetMorphLODModels();
+#endif
+
+
+		// create the LOD entry if it doesn't already exist
+		if (LODIndex >= MorphLODModels.Num())
+		{
+			MorphLODModels.AddDefaulted(LODIndex - MorphLODModels.Num() + 1);
+		}
+
+		// morph mesh data to modify
+		FMorphTargetLODModel& MorphModel = MorphLODModels[LODIndex];
+		// copy the wedge point indices
+		// for now just keep every thing 
+
+		// set the original number of vertices
+		MorphModel.NumBaseMeshVerts = Deltas.Num();
+
+		// empty morph mesh vertices first
+		MorphModel.Vertices.Empty(Deltas.Num());
+
+		// mark if generated by reduction setting, so that we can remove them later if we want to
+		// we don't want to delete if it has been imported
+		MorphModel.bGeneratedByEngine = bGeneratedByReductionSetting;
+
+		// Still keep this (could remove in long term due to incoming data)
+		for (const FMorphTargetDelta& Delta : Deltas)
+		{
+			if (Delta.PositionDelta.SizeSquared() > FMath::Square(PositionThreshold) ||
+				(bCompareNormal && Delta.TangentZDelta.SizeSquared() > 0.01f))
+			{
+				MorphModel.Vertices.Add(Delta);
+				for (int32 SectionIdx = 0; SectionIdx < Sections.Num(); ++SectionIdx)
+				{
+					if (MorphModel.SectionIndices.Contains(SectionIdx))
+					{
+						continue;
+					}
+					//Sections[0].BaseVertexIndex
+					//const uint32 BaseVertexBufferIndex = (uint32)(Sections[SectionIdx].GetVertexBufferIndex());
+					//const uint32 LastVertexBufferIndex = (uint32)(BaseVertexBufferIndex + Sections[SectionIdx].GetNumVertices());
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+					const uint32 BaseVertexBufferIndex = (uint32)(Sections[SectionIdx].BaseVertexIndex);
+					const uint32 LastVertexBufferIndex = (uint32)(BaseVertexBufferIndex + Sections[SectionIdx].NumVertices);
+#else
+					const uint32 BaseVertexBufferIndex = (uint32)(Sections[SectionIdx].GetVertexBufferIndex());
+					const uint32 LastVertexBufferIndex = (uint32)(BaseVertexBufferIndex + Sections[SectionIdx].GetNumVertices());
+#endif
+					if (BaseVertexBufferIndex <= Delta.SourceIdx && Delta.SourceIdx < LastVertexBufferIndex)
+					{
+						MorphModel.SectionIndices.AddUnique(SectionIdx);
+						break;
+					}
+				}
+			}
+		}
+
+		// sort the array of vertices for this morph target based on the base mesh indices
+		// that each vertex is associated with. This allows us to sequentially traverse the list
+		// when applying the morph blends to each vertex.
+
+		struct FCompareMorphTargetDeltas
+		{
+			FORCEINLINE bool operator()(const FMorphTargetDelta& A, const FMorphTargetDelta& B) const
+			{
+				return ((int32)A.SourceIdx - (int32)B.SourceIdx) < 0 ? true : false;
+			}
+		};
+
+		MorphModel.Vertices.Sort(FCompareMorphTargetDeltas());
+
+		// remove array slack
+		MorphModel.Vertices.Shrink();
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+#else
+		MorphModel.NumVertices = MorphModel.Vertices.Num();
+#endif
+}
+#endif
+
+}
+
+static bool readMorph2(TArray<FMorphTargetDelta> &MorphDeltas, aiString targetName,const aiScene *aiData, const UVrmAssetListObject *assetList) {
+
+	MorphDeltas.Reset(0);
+	uint32_t currentVertex = 0;
+
+	FMorphTargetDelta morphinit;
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+	morphinit.PositionDelta = FVector::ZeroVector;
+	morphinit.SourceIdx = 0;
+	morphinit.TangentZDelta = FVector::ZeroVector;
+#else
+	morphinit.PositionDelta = FVector3f::ZeroVector;
+	morphinit.SourceIdx = 0;
+	morphinit.TangentZDelta = FVector3f::ZeroVector;
+#endif
+
+	for (uint32_t m = 0; m < aiData->mNumMeshes; ++m) {
+		const auto &mesh = assetList->MeshReturnedData->meshInfo[m];
+
+		const aiMesh &aiM = *(aiData->mMeshes[m]);
+
+		for (uint32_t a = 0; a < aiM.mNumAnimMeshes; ++a) {
+			const aiAnimMesh &aiA = *(aiM.mAnimMeshes[a]);
+			if (targetName != aiA.mName) {
+				continue;
+			}
+
+			if (aiM.mNumVertices != aiA.mNumVertices) {
+				UE_LOG(LogVRM4ULoader, Warning, TEXT("test18.\n"));
+			}
+
+			TArray<FMorphTargetDelta> tmpData;
+			tmpData.Reserve(aiA.mNumVertices);
+
+			bool bIncludeNormal = VRMConverter::Options::Get().IsEnableMorphTargetNormal();
+
+			int VertexCount = 0;
+
+			for (uint32_t i = 0; i < aiA.mNumVertices; ++i) {
+
+				if (mesh.vertexUseFlag.Num() > 0) {
+					if (mesh.vertexUseFlag[i] == false) {
+						continue;
+					}
+				}
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+				FMorphTargetDelta v = { FVector::ZeroVector, FVector::ZeroVector, 0 };
+#else
+				FMorphTargetDelta v = { FVector3f::ZeroVector, FVector3f::ZeroVector, 0 };
+#endif
+				v.SourceIdx = VertexCount + currentVertex;
+				++VertexCount;
+
+				if (aiA.mVertices) {
+
+					auto aiV = aiA.mVertices[i] - aiM.mVertices[i];
+
+					v.PositionDelta.Set(
+						-aiV[0] * 100.f,
+						aiV[2] * 100.f,
+						aiV[1] * 100.f
+					);
+
+					if (VRMConverter::Options::Get().IsVRM10Model()) {
+						v.PositionDelta.Set(
+							aiV[0] * 100.f,
+							-aiV[2] * 100.f,
+							aiV[1] * 100.f
+						);
+					}
+
+					// apply original root bone rotation
+					FVector tmp;
+					tmp.Set(v.PositionDelta.X, v.PositionDelta.Y, v.PositionDelta.Z);
+					tmp = assetList->model_root_transform.TransformVector(tmp);
+					v.PositionDelta.Set(tmp.X, tmp.Y, tmp.Z);
+				}
+
+				v.PositionDelta *= VRMConverter::Options::Get().GetModelScale();
+
+
+				if (bIncludeNormal) {
+
+					auto aiV = aiA.mNormals[i] - aiM.mNormals[i];
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+					FVector n(
+#else
+					FVector3f n(
+#endif
+						-aiV[0],
+						aiV[2],
+						aiV[1]);
+
+					if (VRMConverter::Options::Get().IsVRM10Model()) {
+						n.Set(
+							aiV[0],
+							-aiV[2],
+							aiV[1]);
+					}
+
+					if (n.Size() > 1.f) {
+						v.TangentZDelta = n.GetUnsafeNormal();
+					}
+
+					if (VRMConverter::Options::Get().IsVRM10Model()) {
+						v.TangentZDelta.X *= -1.f;
+						v.TangentZDelta.Y *= -1.f;
+					}
+				}
+
+				// skip invalid vertex data
+				if (v.PositionDelta.Size() == 0) {
+					if (bIncludeNormal == false) {
+						continue;
+					}
+					if (v.TangentZDelta.Size() == 0) {
+						continue;
+					}
+				}
+
+				tmpData.Add(v);
+			} // vertex loop
+
+
+			MorphDeltas.Append(tmpData);
+		}
+		if (mesh.vertexUseFlag.Num() > 0) {
+			currentVertex += mesh.useVertexCount;
+		}else{
+			currentVertex += aiM.mNumVertices;
+		}
+	}
+	return MorphDeltas.Num() != 0;
+}
+
+
+bool VRMConverter::ConvertMorphTarget(UVrmAssetListObject *vrmAssetList) {
+	if (Options::Get().IsSkipMorphTarget()) {
+		return true;
+	}
+
+	if (vrmAssetList->SkeletalMesh == nullptr) {
+		return false;
+	}
+
+	USkeletalMesh *sk = vrmAssetList->SkeletalMesh;
+
+	TArray<FString> MorphNameList;
+	TArray<FString> MorphNameList_Strict;
+	TMap<FString, FString> MorphName_Orig_to_Name;
+
+	TArray<UMorphTarget*> MorphTargetList;
+
+	for (uint32_t m = 0; m < aiData->mNumMeshes; ++m) {
+		const aiMesh &aiM = *(aiData->mMeshes[m]);
+		for (uint32_t a = 0; a < aiM.mNumAnimMeshes; ++a) {
+			const aiAnimMesh &aiA = *(aiM.mAnimMeshes[a]);
+			//aiA.
+			TArray<FMorphTargetDelta> MorphDeltas;
+
+			FString morphName = UTF8_TO_TCHAR(aiA.mName.C_Str());
+			FString morphNameOrg = morphName;
+			if (VRMConverter::Options::Get().IsForceOriginalMorphTargetName()) {
+			}else{
+
+				auto mName = MorphName_Orig_to_Name.Find(morphNameOrg);
+				if (mName) {
+					continue;
+					//morphName = *mName;
+				} else {
+					morphName = VRMUtil::MakeName(morphName);
+
+					bool isInvalidName = VRMUtil::IsNoSafeName(morphName);
+
+					auto tmp = morphName;
+					int i = 0;
+					while (MorphNameList.Find(tmp) != INDEX_NONE || isInvalidName) {
+						++i;
+						isInvalidName = false;
+						tmp = TEXT("UE5EA_patch_") + morphName + TEXT("_") + FString::FromInt(i);
+					}
+					morphName = tmp;
+
+					MorphName_Orig_to_Name.Add(morphNameOrg, morphName);
+				}
+
+			}
+			if (morphName == TEXT("")) {
+				//morphName = FString::Printf("%d_%d", m, a);
+			}
+
+
+			if (MorphNameList.Find(morphName) != INDEX_NONE) {
+//				continue;
+			}
+
+			MorphNameList.AddUnique(morphName);
+			MorphNameList_Strict.AddUnique(morphNameOrg);
+			if (readMorph2(MorphDeltas, aiA.mName, aiData, vrmAssetList) == false) {
+				continue;
+			}
+
+			//FString sss = FString::Printf(TEXT("%02d_%02d_"), m, a) + FString(aiA.mName.C_Str());
+			FString sss = morphName;// FString::Printf(TEXT("%02d_%02d_"), m, a) + FString();
+			UMorphTarget *mt = NewObject<UMorphTarget>(sk, *sss);
+
+#if WITH_EDITOR
+			LocalPopulateDeltas(mt, MorphDeltas, 0, sk->GetImportedModel()->LODModels[0].Sections);
+#else
+			LocalPopulateDeltas(sk, mt, MorphDeltas, 0);
+#endif
+
+			if (mt->HasValidData()) {
+#if	UE_VERSION_OLDER_THAN(4,20,0)
+#else
+				{
+					FMorphTargetLODModel MorphLODModel;
+					MorphLODModel.Reset();
+					MorphLODModel.NumBaseMeshVerts = MorphDeltas.Num();
+					MorphLODModel.SectionIndices.Add(0);
+					MorphLODModel.Vertices = MorphDeltas;
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+					if (mt->MorphLODModels.IsValidIndex(0) == false) {
+						mt->MorphLODModels.Add(MorphLODModel);
+					} else {
+						mt->MorphLODModels[0] = MorphLODModel;
+					}
+#else
+					if (mt->GetMorphLODModels().IsValidIndex(0) == false) {
+						mt->GetMorphLODModels().Add(MorphLODModel);
+					} else {
+						mt->GetMorphLODModels()[0] = MorphLODModel;
+					}
+#endif
+
+					mt->BaseSkelMesh = sk;
+				}
+#endif
+				MorphTargetList.Add(mt);
+			}
+		}
+	}
+
+#if WITH_EDITOR
+
+#if	UE_VERSION_OLDER_THAN(4,25,0)
+#else
+	// to avoid no morph target
+	// on Immediate
+	VRMSetUseLegacyMeshDerivedDataKey(sk, true);
+
+PRAGMA_DISABLE_DEPRECATION_WARNINGS
+	FSkeletalMeshImportData RawMesh;
+	sk->LoadLODImportedData(0, RawMesh);
+
+	RawMesh.MorphTargetNames = MorphNameList;
+
+	// to avoid no morph target
+	// on EditorRestart
+	sk->SaveLODImportedData(0, RawMesh);
+
+	sk->SetLODImportedDataVersions(0, ESkeletalMeshGeoImportVersions::Before_Versionning, ESkeletalMeshSkinningImportVersions::Before_Versionning);
+PRAGMA_ENABLE_DEPRECATION_WARNINGS
+
+#endif
+#endif // editor
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+#else
+	{
+		FSkeletalMeshLODInfo* LODInfoPtr = sk->GetLODInfo(0);
+		if (LODInfoPtr) {
+			LODInfoPtr->ReductionSettings.NumOfTrianglesPercentage = 1.f;
+		}
+	}
+#endif
+
+	{
+		// remove all morph & morph curve
+		sk->UnregisterAllMorphTarget();
+
+#if WITH_EDITOR
+#if	UE_VERSION_OLDER_THAN(5,3,0)
+#else
+		{
+			TArray<FName> namelist;
+			VRMGetSkeleton(sk)->GetCurveMetaDataNames(namelist);
+			for (auto name : namelist) {
+				FCurveMetaData* m = VRMGetSkeleton(sk)->GetCurveMetaData(name);
+				if (m == nullptr) continue;
+				if (m->Type.bMorphtarget) {
+					VRMGetSkeleton(sk)->RemoveCurveMetaData(name);
+				}
+			}
+		}
+#endif
+#endif
+	}
+
+	for (int i=0; i<MorphTargetList.Num(); ++i){
+		auto *mt = MorphTargetList[i];
+		if (i == MorphTargetList.Num() - 1) {
+			sk->RegisterMorphTarget(mt);
+		} else {
+			VRMGetMorphTargets(sk).Add(mt);
+		}
+	}
+
+	for (auto name : MorphNameList) {
+		FCurveMetaData* FoundCurveMetaData = VRMGetSkeleton(sk)->GetCurveMetaData(*name);
+		if (FoundCurveMetaData) {
+			FoundCurveMetaData->Type.bMorphtarget = true;
+			continue;
+		}
+
+		VRMGetSkeleton(sk)->AccumulateCurveMetaData(*name, false, true);
+	}
+
+#if WITH_EDITOR
+	sk->PostEditChange();
+#else
+
+#if	UE_VERSION_OLDER_THAN(4,24,0)
+#else
+	if (sk->GetResourceForRendering()) {
+		if (sk->GetResourceForRendering()->LODRenderData.Num() > 0) {
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+#else
+			if (VRMConverter::IsImportMode() == false) {
+				for (auto& RenderSection : sk->GetResourceForRendering()->LODRenderData[0].RenderSections) {
+					RenderSection.DuplicatedVerticesBuffer.DupVertData.SetNum(1);
+				}
+			}
+#endif
+
+#if	UE_VERSION_OLDER_THAN(5,4,0)
+			sk->GetResourceForRendering()->LODRenderData[0].InitResources(false, 0, VRMGetMorphTargets(sk), sk);
+#else
+			{
+				TArray<UMorphTarget*> morphtargets;
+				for (auto morphtarget : VRMGetMorphTargets(sk)) {
+					morphtargets.Add(morphtarget);
+				}
+#if UE_VERSION_OLDER_THAN(5,7,0)
+			sk->GetResourceForRendering()->LODRenderData[0].InitResources(false, 0, morphtargets, sk);
+#else
+			sk->GetResourceForRendering()->LODRenderData[0].InitResources(false, 0, sk);
+#endif
+
+			}
+#endif
+		}
+	}
+#endif
+
+#endif // editor
+
+	return true;
+}
+
+
+VrmConvertMorphTarget::VrmConvertMorphTarget()
+{
+}
+
+VrmConvertMorphTarget::~VrmConvertMorphTarget()
+{
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmConvertRig.cpp

@@ -0,0 +1,793 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvertRig.h"
+#include "VrmConvert.h"
+#include "VrmUtil.h"
+
+#include "VrmAssetListObject.h"
+#include "VrmMetaObject.h"
+#include "LoaderBPFunctionLibrary.h"
+#include "VrmBPFunctionLibrary.h"
+
+#include "Engine/SkeletalMesh.h"
+#include "RenderingThread.h"
+#include "Rendering/SkeletalMeshModel.h"
+#include "Rendering/SkeletalMeshLODModel.h"
+#include "Rendering/SkeletalMeshLODRenderData.h"
+#include "Rendering/SkeletalMeshRenderData.h"
+#include "Animation/MorphTarget.h"
+#include "Animation/NodeMappingContainer.h"
+#include "Animation/Skeleton.h"
+#include "Components/SkeletalMeshComponent.h"
+#include "UObject/UnrealType.h"
+#if UE_VERSION_OLDER_THAN(5,4,0)
+#include "Animation/Rig.h"
+#endif
+
+#include "PhysicsEngine/PhysicsAsset.h"
+#include "PhysicsEngine/PhysicsConstraintTemplate.h"
+
+#if	UE_VERSION_OLDER_THAN(5,5,0)
+#else
+#include "PhysicsEngine/SkeletalBodySetup.h"
+#endif
+
+
+#include "VrmRigHeader.h"
+
+
+#if WITH_EDITOR
+#include "IPersonaToolkit.h"
+#include "PersonaModule.h"
+#include "Modules/ModuleManager.h"
+#include "Animation/DebugSkelMeshComponent.h"
+#endif
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+//#include "Engine/.h"
+
+namespace {
+
+	static int GetChildBoneLocal(const FReferenceSkeleton &skeleton, const int32 ParentBoneIndex, TArray<int32> & Children) {
+		Children.Reset();
+		//auto &r = skeleton->GetReferenceSkeleton();
+		auto &r = skeleton;
+
+		const int32 NumBones = r.GetRawBoneNum();
+		for (int32 ChildIndex = ParentBoneIndex + 1; ChildIndex < NumBones; ChildIndex++)
+		{
+			if (ParentBoneIndex == r.GetParentIndex(ChildIndex))
+			{
+				Children.Add(ChildIndex);
+			}
+		}
+		return Children.Num();
+	}
+
+	static bool isSameOrChild(const FReferenceSkeleton &skeleton, const int32 TargetBoneIndex, const int32 SameOrChildBoneIndex) {
+		auto &r = skeleton;
+
+		if (TargetBoneIndex < 0 || SameOrChildBoneIndex < 0) {
+			return false;
+		}
+
+		int32 c = SameOrChildBoneIndex;
+		for (int i = 0; i < skeleton.GetRawBoneNum(); ++i) {
+
+			if (c < 0) break;
+
+			if (c == TargetBoneIndex) {
+				return true;
+			}
+
+			c = skeleton.GetParentIndex(c);
+		}
+		return false;
+	}
+}
+
+bool VRMConverter::ConvertRig(UVrmAssetListObject *vrmAssetList) {
+
+	if (VRMConverter::Options::Get().IsDebugOneBone()) {
+		return true;
+	}
+
+	if (vrmAssetList->SkeletalMesh == nullptr) {
+		return false;
+	}
+
+	bool bPlay = false;
+	{
+		bool b1, b2, b3;
+		b1 = b2 = b3 = false;
+		UVrmBPFunctionLibrary::VRMGetPlayMode(b1, b2, b3);
+		bPlay = b1;
+	}
+	if (bPlay) {
+	}
+
+	// override bone table
+	if (VRMConverter::Options::Get().IsVRMAModel()) {
+		if (vrmAssetList->VrmMetaObject) {
+			for (auto& t : vrmAssetList->VrmMetaObject->humanoidBoneTable) {
+				t.Value = t.Key;
+			}
+		}
+	}
+
+	auto* k = VRMGetSkeleton(vrmAssetList->SkeletalMesh);
+
+#if	UE_VERSION_OLDER_THAN(4,20,0)
+#elif UE_VERSION_OLDER_THAN(5,4,0)
+
+#if WITH_EDITOR
+	UNodeMappingContainer* mc = nullptr;
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+	{
+		FString name = FString(TEXT("RIG_")) + vrmAssetList->BaseFileName;
+		mc = VRM4U_NewObject<UNodeMappingContainer>(vrmAssetList->Package, *name, RF_Public | RF_Standalone);
+	}
+	VRMGetNodeMappingData(vrmAssetList->SkeletalMesh).Add(mc);
+	URig *EngineHumanoidRig = LoadObject<URig>(nullptr, TEXT("/Engine/EngineMeshes/Humanoid.Humanoid"), nullptr, LOAD_None, nullptr);
+	mc->SetSourceAsset(EngineHumanoidRig);
+
+	VRMGetSkeleton(vrmAssetList->SkeletalMesh)->SetRigConfig(EngineHumanoidRig);
+
+	mc->SetTargetAsset(vrmAssetList->SkeletalMesh);
+	mc->AddDefaultMapping();
+#endif
+
+	{
+		const VRM::VRMMetadata *meta = reinterpret_cast<VRM::VRMMetadata*>(aiData->mVRMMeta);
+
+		auto func = [&](const FString &a, const FString b) {
+			if (mc == nullptr) return;
+			mc->AddMapping(*a, *b);
+			VRMGetSkeleton(vrmAssetList->SkeletalMesh)->SetRigBoneMapping(*a, *b);
+		};
+		auto func2 = [&](const FString &a, FName b) {
+			func(a, b.ToString());
+		};
+
+		if (meta) {
+			for (auto &t : VRMUtil::table_ue4_vrm) {
+				FString target = t.BoneVRM;
+				const FString &ue4 = t.BoneUE4;
+
+				if (ue4.Compare(TEXT("Root"), ESearchCase::IgnoreCase) == 0) {
+					auto &a = VRMGetSkeleton(vrmAssetList->SkeletalMesh)->GetReferenceSkeleton().GetRefBoneInfo();
+					target = a[0].Name.ToString();
+				}
+
+				if (target.Len() == 0) {
+					continue;
+				}
+
+
+				for (auto b : meta->humanoidBone) {
+
+					if (target.Compare(b.humanBoneName.C_Str()) != 0) {
+						continue;
+					}
+					target = b.nodeName.C_Str();
+					break;
+				}
+
+				func(ue4, target);
+			}
+			{
+				const TArray<FString> cc = {
+					TEXT("Root"),
+					TEXT("Pelvis"),
+					TEXT("spine_01"),
+					TEXT("spine_02"),
+					TEXT("spine_03"),
+					TEXT("neck_01"),
+				};
+
+				// find bone from child bone
+				for (int i = cc.Num() - 2; i > 0; --i) {
+					if (mc == nullptr) continue;
+
+					const auto &m = mc->GetNodeMappingTable();
+
+					{
+						const auto p0 = m.Find(*cc[i]);
+						if (p0) {
+							// map exist
+							continue;
+						}
+					}
+					const auto p = m.Find(*cc[i + 1]);
+					if (p == nullptr) {
+						// child none
+						continue;
+					}
+
+					const FName *parentRoot = nullptr;
+					for (int toParent = i - 1; toParent > 0; --toParent) {
+						parentRoot = m.Find(*cc[toParent]);
+						if (parentRoot) {
+							break;
+						}
+					}
+					if (parentRoot == nullptr) {
+						continue;
+					}
+
+					// find (child) p -> (parent)parentRoot
+					FString newTarget = parentRoot->ToString();
+					{
+
+						const int32 index = k->GetReferenceSkeleton().FindBoneIndex(*p);
+						const int32 indexParent = k->GetReferenceSkeleton().GetParentIndex(index);
+						const int32 indexRoot = k->GetReferenceSkeleton().FindBoneIndex(*parentRoot);
+
+						if (isSameOrChild(k->GetReferenceSkeleton(), indexRoot, indexParent)) {
+							newTarget = k->GetReferenceSkeleton().GetBoneName(indexParent).ToString();
+						}
+					}
+					func(cc[i], newTarget);
+				}
+
+				// set null -> parent bone
+				for (int i = 1; i < cc.Num(); ++i) {
+					if (mc == nullptr) continue;
+					const auto &m = mc->GetNodeMappingTable();
+
+					{
+						const auto p0 = m.Find(*cc[i]);
+						if (p0) {
+							// map exist
+							continue;
+						}
+					}
+					const auto pp = m.Find(*cc[i-1]);
+					if (pp == nullptr) {
+						// parent none
+						continue;
+					}
+
+					// map=nullptr, parent=exist
+					FString newTarget = pp->ToString();
+
+					{
+						int32 index = k->GetReferenceSkeleton().FindBoneIndex(*pp);
+						TArray<int32> child;
+						GetChildBoneLocal(k->GetReferenceSkeleton(), index, child);
+						if (child.Num() == 1) {
+							// use one child
+							// need neck check...
+							//newTarget = k->GetReferenceSkeleton().GetBoneName(child[0]).ToString();
+						}
+					}
+
+					func(cc[i], newTarget);
+				}
+			}
+		} else {
+			// BVH auto mapping
+			
+			const auto &rSk = k->GetReferenceSkeleton(); //EngineHumanoidRig->GetSourceReferenceSkeleton();
+			
+			TArray<FString> rBoneList;
+			{
+				for (auto &a : rSk.GetRawRefBoneInfo()) {
+					rBoneList.Add(a.Name.ToString());
+				}
+			}
+			TArray<FString> existTable;
+			int boneIndex = -1;
+			for (auto &b : rBoneList) {
+				++boneIndex;
+
+				if (b.Find(TEXT("neck")) >= 0) {
+					const FString t = TEXT("neck_01");
+					if (existTable.Find(t) >= 0) {
+						continue;
+					}
+					existTable.Add(t);
+					func(t, b);
+
+
+					const TArray<FString> cc = {
+						TEXT("spine_03"),
+						TEXT("spine_02"),
+						TEXT("spine_01"),
+						TEXT("Pelvis"),
+						TEXT("Root"),
+					};
+
+					TArray<FName> targetBone;
+					targetBone.SetNum(5);
+
+					// map
+					const int neckBoneIndex = boneIndex;
+					{
+						int p = neckBoneIndex;
+
+						for (int i = 0; i < 5; ++i) {
+							int p2 = rSk.GetParentIndex(p);
+							if (p2 >= 0) {
+								p = p2;
+							}
+							targetBone[i] = rSk.GetBoneName(p);
+						}
+					}
+
+					// upper chest skip
+					for (int i = 0; i < 5; ++i) {
+						if (targetBone[2] == targetBone[3]) {
+							targetBone[2] = targetBone[1];
+							targetBone[1] = targetBone[0];
+						}
+					}
+
+					// root
+					targetBone[cc.Num() - 1] = rSk.GetBoneName(0);
+
+					// pelvis, spine
+					{
+						int p = neckBoneIndex;
+
+						for (int i = 0; i < 100; ++i) {
+							p = rSk.GetParentIndex(p);
+							if (p <= 0) break;
+
+							int p2 = rSk.GetParentIndex(p);
+							if (p2 <= 0) break;
+
+							// pelvis
+							targetBone[cc.Num() - 2] = rSk.GetBoneName(p2);
+
+							// spine
+							targetBone[cc.Num() - 3] = rSk.GetBoneName(p);
+						}
+					}
+
+					//regist
+					for (int i = 0; i < 5; ++i) {
+						func2(cc[i], targetBone[i]);
+					}
+				}
+				if (b.Find(TEXT("head")) >= 0) {
+					const FString t = TEXT("head");
+					if (existTable.Find(t) >= 0) {
+						continue;
+					}
+					existTable.Add(t);
+					func(t, b);
+				}
+
+				if (b.Find(TEXT("hand")) >= 0) {
+					if (b.Find("r") >= 0) {
+						const FString t = TEXT("Hand_R");
+						if (existTable.Find(t) >= 0){
+							continue;
+						}
+						existTable.Add(t);
+
+						func(t, b);
+
+						int p = rSk.GetParentIndex(boneIndex);
+						if (p >= 0) {
+							func2(TEXT("lowerarm_r"), rSk.GetBoneName(p));
+						}
+
+						p = rSk.GetParentIndex(p);
+						if (p >= 0) {
+							func2(TEXT("UpperArm_R"), rSk.GetBoneName(p));
+
+							p = rSk.GetParentIndex(p);
+							if (p >= 0) {
+								func2(TEXT("clavicle_r"), rSk.GetBoneName(p));
+							}
+						}
+
+						{
+							// finger right
+							TArray<int32> childBone;
+							GetChildBoneLocal(rSk, boneIndex, childBone);
+							FString tt[6][2] = {
+								{"thumb",	"thumb_01_r"},
+								{"index",	"index_01_r"},
+								{"middle",	"middle_01_r"},
+								{"ring",		"ring_01_r"},
+								{"little",	"pinky_01_r"},	// little
+								{"pinky",	"pinky_01_r"},	// little
+							};
+							for (auto& c : childBone) {
+								auto name = rSk.GetBoneName(c);
+								for (int i = 0; i < 6; ++i) {
+									{
+										int tmp = name.ToString().Find(tt[i][0]);
+										if (tmp < 0) continue;
+									}
+									int ind = VRMUtil::ue4_humanoid_bone_list.Find(tt[i][1]);
+									if (ind < 0) continue;
+
+									func2(VRMUtil::ue4_humanoid_bone_list[ind], rSk.GetBoneName(c));
+
+									TArray<int32> tmp = { c };
+
+									GetChildBoneLocal(rSk, tmp[0], tmp);
+									if (tmp.Num() <= 0) continue;
+									func2(VRMUtil::ue4_humanoid_bone_list[ind + 1], rSk.GetBoneName(tmp[0]));
+
+									GetChildBoneLocal(rSk, tmp[0], tmp);
+									if (tmp.Num() <= 0) continue;
+									func2(VRMUtil::ue4_humanoid_bone_list[ind + 2], rSk.GetBoneName(tmp[0]));
+								}
+							}
+						}
+					}
+					if (b.Find("l") >= 0) {
+						const FString t = TEXT("Hand_L");
+						if (existTable.Find(t) >= 0) {
+							continue;
+						}
+						existTable.Add(t);
+
+						func(t, b);
+
+						int p = rSk.GetParentIndex(boneIndex);
+						if (p >= 0) {
+							func2(TEXT("lowerarm_l"), rSk.GetBoneName(p));
+
+							p = rSk.GetParentIndex(p);
+							if (p >= 0) {
+								func2(TEXT("UpperArm_L"), rSk.GetBoneName(p));
+
+								p = rSk.GetParentIndex(p);
+								if (p >= 0) {
+									func2(TEXT("clavicle_l"), rSk.GetBoneName(p));
+								}
+							}
+						}
+
+						{
+							// finger left
+							TArray<int32> childBone;
+							GetChildBoneLocal(rSk, boneIndex, childBone);
+							FString tt[6][2] = {
+								{"thumb",	"thumb_01_l"},
+								{"index",	"index_01_l"},
+								{"middle",	"middle_01_l"},
+								{"ring",		"ring_01_l"},
+								{"little",	"pinky_01_l"},	// little
+								{"pinky",	"pinky_01_l"},	// little
+							};
+							for (auto& c : childBone) {
+								auto name = rSk.GetBoneName(c);
+								for (int i = 0; i < 6; ++i) {
+									{
+										int tmp = name.ToString().Find(tt[i][0]);
+										if (tmp < 0) continue;
+									}
+									int ind = VRMUtil::ue4_humanoid_bone_list.Find(tt[i][1]);
+									if (ind < 0) continue;
+
+									func2(VRMUtil::ue4_humanoid_bone_list[ind], rSk.GetBoneName(c));
+
+									TArray<int32> tmp = { c };
+
+									GetChildBoneLocal(rSk, tmp[0], tmp);
+									if (tmp.Num() <= 0) continue;
+									func2(VRMUtil::ue4_humanoid_bone_list[ind + 1], rSk.GetBoneName(tmp[0]));
+
+									GetChildBoneLocal(rSk, tmp[0], tmp);
+									if (tmp.Num() <= 0) continue;
+									func2(VRMUtil::ue4_humanoid_bone_list[ind + 2], rSk.GetBoneName(tmp[0]));
+								}
+							}
+						}
+					}
+				}
+				if (b.Find(TEXT("foot")) >= 0) {
+					if (b.Find("r") >= 0) {
+						const FString t = TEXT("Foot_R");
+						if (existTable.Find(t) >= 0) {
+							continue;
+						}
+						existTable.Add(t);
+
+						func(t, b);
+
+						{
+							TArray<int32> c;
+							GetChildBoneLocal(rSk, boneIndex, c);
+							if (c.Num()) {
+								func2(TEXT("ball_r"), rSk.GetBoneName(c[0]));
+							}
+						}
+
+						int p = rSk.GetParentIndex(boneIndex);
+						if (p >= 0) {
+							func2(TEXT("calf_r"), rSk.GetBoneName(p));
+
+							p = rSk.GetParentIndex(p);
+							if (p >= 0) {
+								func2(TEXT("Thigh_R"), rSk.GetBoneName(p));
+							}
+						}
+					}
+					if (b.Find("l") >= 0) {
+						const FString t = TEXT("Foot_L");
+						if (existTable.Find(t) >= 0) {
+							continue;
+						}
+						existTable.Add(t);
+
+						func(t, b);
+
+						{
+							TArray<int32> c;
+							GetChildBoneLocal(rSk, boneIndex, c);
+							if (c.Num()) {
+								func2(TEXT("ball_l"), rSk.GetBoneName(c[0]));
+							}
+						}
+
+						int p = rSk.GetParentIndex(boneIndex);
+						if (p >= 0) {
+							func2(TEXT("calf_l"), rSk.GetBoneName(p));
+
+							p = rSk.GetParentIndex(p);
+							if (p >= 0) {
+								func2(TEXT("Thigh_L"), rSk.GetBoneName(p));
+							}
+						}
+					}
+				}
+
+				{
+					// pmx bone map
+					for (const auto &t : VRMUtil::table_ue4_pmx) {
+
+						FString pmxBone;
+						VRMUtil::GetReplacedPMXBone(pmxBone, t.BoneVRM);
+
+						FString targetList[2] = {
+							pmxBone,
+							t.BoneVRM,
+						};
+
+						bool finish = false;
+						for (int i = 0; i < 2; ++i) {
+							FString target = targetList[i];// t.BoneVRM;
+							const FString& ue4 = t.BoneUE4;
+							auto ind = k->GetReferenceSkeleton().FindBoneIndex(*target);
+							if (ind != INDEX_NONE) {
+								func(ue4, target);
+
+								for (const auto& v : VRMUtil::table_ue4_vrm) {
+									if (v.BoneUE4 == t.BoneUE4) {
+										if (v.BoneVRM.IsEmpty()) {
+											continue;
+										}
+										finish = true;
+										break;
+									}
+								}
+							}
+							if (finish) break;
+						}// 2 loop
+					}
+				}// pmx map
+			}
+		}// map end
+	}
+
+	//mc->AddMapping
+	if (mc) {
+		mc->PostEditChange();
+		vrmAssetList->HumanoidRig = mc;
+	}
+#endif // editor
+#endif //420
+
+	if (VRMConverter::Options::Get().IsVRMAModel()) {
+		// for expression curve
+		for (int i = 0; i < k->GetReferenceSkeleton().GetRawBoneNum(); ++i) {
+			k->SetBoneTranslationRetargetingMode(i, EBoneTranslationRetargetingMode::Animation);
+		}
+
+		if (vrmAssetList && vrmAssetList->VrmMetaObject) {
+			for (auto& t : vrmAssetList->VrmMetaObject->humanoidBoneTable) {
+				auto i = k->GetReferenceSkeleton().FindBoneIndex(*t.Value);
+				if (i != INDEX_NONE) {
+					if (t.Key.Compare(TEXT("hips"), ESearchCase::IgnoreCase) == 0) {
+					} else {
+						k->SetBoneTranslationRetargetingMode(i, EBoneTranslationRetargetingMode::Skeleton);
+					}
+				}
+			}
+		}
+	}else{
+
+		FString PelvisBoneName;
+		if (vrmAssetList && vrmAssetList->VrmMetaObject) {
+			for (auto& t : vrmAssetList->VrmMetaObject->humanoidBoneTable) {
+				if (t.Key.Compare(TEXT("hips"), ESearchCase::IgnoreCase) == 0) {
+					PelvisBoneName = t.Value;
+					break;
+				}
+			}
+		}
+
+		int bone = -1;
+		for (int i = 0; i < k->GetReferenceSkeleton().GetRawBoneNum(); ++i) {
+			//const int32 BoneIndex = k->GetReferenceSkeleton().FindBoneIndex(InBoneName);
+			k->SetBoneTranslationRetargetingMode(i, EBoneTranslationRetargetingMode::Skeleton);
+			//FAssetNotifications::SkeletonNeedsToBeSaved(k);
+			if (k->GetReferenceSkeleton().GetBoneName(i).Compare(*PelvisBoneName) == 0) {
+				bone = i;
+			}
+		}
+
+		bool first = true;
+		while (bone >= 0) {
+			if (first) {
+				k->SetBoneTranslationRetargetingMode(bone, EBoneTranslationRetargetingMode::AnimationScaled);
+			}
+			else {
+				k->SetBoneTranslationRetargetingMode(bone, EBoneTranslationRetargetingMode::Animation);
+			}
+			first = false;
+
+			bone = k->GetReferenceSkeleton().GetParentIndex(bone);
+		}
+		{
+			FName n[] = {
+				TEXT("ik_foot_root"),
+				TEXT("ik_foot_l"),
+				TEXT("ik_foot_r"),
+				TEXT("ik_hand_root"),
+				TEXT("ik_hand_gun"),
+				TEXT("ik_hand_l"),
+				TEXT("ik_hand_r"),
+			};
+
+			for (auto& s : n) {
+				int32 ind = k->GetReferenceSkeleton().FindBoneIndex(s);
+				if (ind < 0) continue;
+
+				k->SetBoneTranslationRetargetingMode(ind, EBoneTranslationRetargetingMode::Animation, false);
+			}
+		}
+		if (VRMConverter::Options::Get().IsPMXModel()) {
+			// center to animscale
+			int32 ind = k->GetReferenceSkeleton().FindBoneIndex(*(VRMUtil::table_ue4_pmx[1].BoneVRM));
+			if (ind >= 0) {
+				k->SetBoneTranslationRetargetingMode(ind, EBoneTranslationRetargetingMode::AnimationScaled, false);
+			}
+		}
+		if (VRMConverter::Options::Get().IsBVHModel()) {
+			// 0 == root by vrm4u dummy
+			// 1 == root by model
+			k->SetBoneTranslationRetargetingMode(0, EBoneTranslationRetargetingMode::Animation, false);
+			k->SetBoneTranslationRetargetingMode(1, EBoneTranslationRetargetingMode::Animation, false);
+		}
+		if (VRMConverter::Options::Get().IsVRMModel() == false) {
+			k->SetBoneTranslationRetargetingMode(0, EBoneTranslationRetargetingMode::Animation, false);
+		}
+
+	}
+
+	// dummy Collision
+	if (vrmAssetList) {
+		const VRM::VRMMetadata* meta = reinterpret_cast<VRM::VRMMetadata*>(aiData->mVRMMeta);
+		USkeletalMesh* sk = vrmAssetList->SkeletalMesh;
+		UPhysicsAsset* pa = VRMGetPhysicsAsset(sk);
+		const FString dummy_target[] = {
+			TEXT("hips"),
+			TEXT("head"),
+
+			TEXT("rightHand"),
+			TEXT("leftHand"),
+			TEXT("leftMiddleDistal"),
+			TEXT("rightMiddleDistal"),
+
+
+			TEXT("rightFoot"),
+			TEXT("leftFoot"),
+
+			TEXT("leftToes"),
+			TEXT("rightToes"),
+
+			TEXT("rightLowerArm"),
+			TEXT("leftLowerArm"),
+
+			TEXT("rightLowerLeg"),
+			TEXT("leftLowerLeg"),
+		};
+		if (meta && pa) {
+			for (const auto& a : meta->humanoidBone) {
+
+				{
+					bool bFound = false;
+					for (auto& d : dummy_target) {
+						if (d.Compare(a.humanBoneName.C_Str()) == 0) {
+							bFound = true;
+						}
+					}
+					if (bFound == false) {
+						continue;
+					}
+				}
+
+				{
+					bool b = false;
+					for (const auto& bs : pa->SkeletalBodySetups) {
+						FString s = bs->BoneName.ToString();
+						if (s.Compare(a.nodeName.C_Str(), ESearchCase::IgnoreCase) == 0) {
+							b = true;
+							break;
+						}
+					}
+					if (b) {
+						continue;
+					}
+				}
+
+				const int targetBone = VRMGetRefSkeleton(sk).FindRawBoneIndex(a.nodeName.C_Str());
+				if (targetBone == INDEX_NONE) {
+					break;
+				}
+
+				USkeletalBodySetup* bs = nullptr;
+				int BodyIndex1 = -1;
+
+				bs = NewObject<USkeletalBodySetup>(pa, *(FString(TEXT("dummy_for_clip")) + a.humanBoneName.C_Str()), RF_Transactional);
+
+				FKAggregateGeom agg;
+				FKSphereElem SphereElem;
+				SphereElem.Center = FVector(0);
+				SphereElem.Radius = 1.f;// center.Size();// 1.f;
+				agg.SphereElems.Add(SphereElem);
+				SphereElem.SetName(TEXT("dummy_for_clip"));
+
+				bs->Modify();
+				bs->BoneName = a.nodeName.C_Str();
+				bs->AddCollisionFrom(agg);
+				bs->CollisionTraceFlag = CTF_UseSimpleAsComplex;
+				// newly created bodies default to simulating
+				bs->PhysicsType = PhysType_Kinematic;	// fix
+														//bs->get
+				bs->CollisionReponse = EBodyCollisionResponse::BodyCollision_Disabled;
+				bs->DefaultInstance.InertiaTensorScale.Set(2, 2, 2);
+				bs->DefaultInstance.LinearDamping = 0.f;
+				bs->DefaultInstance.AngularDamping = 0.f;
+
+				bs->InvalidatePhysicsData();
+				bs->CreatePhysicsMeshes();
+				BodyIndex1 = pa->SkeletalBodySetups.Add(bs);
+
+				//break;
+			}
+
+			pa->UpdateBoundsBodiesArray();
+			pa->UpdateBodySetupIndexMap();
+			RefreshSkelMeshOnPhysicsAssetChange(sk);
+#if WITH_EDITOR
+			pa->RefreshPhysicsAssetChange();
+#endif
+
+#if WITH_EDITOR
+			if (VRMConverter::IsImportMode()) {
+				pa->PostEditChange();
+			}
+#endif
+		}
+	}// collistion
+
+	return true;
+}
+

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmJson.cpp

@@ -0,0 +1,294 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+
+#include "VrmJson.h"
+#include "VrmConvert.h"
+
+#include "Misc/FileHelper.h"
+#include "Misc/Paths.h"
+#include "Modules/ModuleManager.h"
+#include "Interfaces/IPluginManager.h"
+
+#include "rapidjson/schema.h"
+#include "rapidjson/stringbuffer.h"
+#include "rapidjson/error/en.h"
+
+bool VRMIsValid(const uint8_t* pData, size_t size) {
+	VRMConverter j;
+	if (j.Init(pData, size, nullptr)) {
+		return j.ValidateSchema();
+	}
+	return false;
+}
+
+
+bool VRMIsVRM10(RAPIDJSON_NAMESPACE::Document &doc) {
+	if (doc.HasMember("extensions")) {
+		if (doc["extensions"].HasMember("VRMC_vrm")) {
+			return true;
+		}
+		if (doc["extensions"].HasMember("VRMC_vrm_animation")) {
+			return true;
+		}
+	}
+	return false;
+}
+
+bool VRMIsVRM10(const uint8_t* pData, size_t size) {
+	VRMConverter j;
+	if (j.Init(pData, size, nullptr) == false) {
+		return false;
+	}
+	RAPIDJSON_NAMESPACE::Document& doc = j.jsonData.doc;
+	//doc.Parse(&v[0]);
+
+	return VRMIsVRM10(doc);
+}
+
+FString GetPluginThirdpartyPath() {
+	std::string ret;
+	TSharedPtr<IPlugin> Plugin = IPluginManager::Get().FindPlugin("VRM4U");
+	if (!Plugin.IsValid())
+	{
+		UE_LOG(LogTemp, Error, TEXT("Plugin not found!"));
+		return FString();
+	}
+	return Plugin->GetBaseDir() / TEXT("Thirdparty");
+}
+
+std::string ReadTextFileFromThirdparty(const FString& RelativePath)
+{
+	std::string ret;
+
+	FString TextFilePath = GetPluginThirdpartyPath() / RelativePath;
+
+	// ファイルの存在確認
+	if (!FPaths::FileExists(TextFilePath))
+	{
+		UE_LOG(LogTemp, Warning, TEXT("VRM4U_Schema: no file: %s"), *TextFilePath);
+		return ret;
+	}
+
+	// テキストファイルを読み込む
+	FString FileContent;
+	TArray<uint8> data;
+	//if (FFileHelper::LoadFileToString(FileContent, *ThirdpartyPath))
+	if (FFileHelper::LoadFileToArray(data, *TextFilePath))
+	{
+		UE_LOG(LogTemp, Log, TEXT("VRM4U_Schema: read: %s"), *TextFilePath);
+		return std::string(reinterpret_cast<const char*>(data.GetData()), data.Num());
+	} else
+	{
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: failed: %s"), *TextFilePath);
+		return ret;
+	}
+}
+
+// Schema Provider ($ref をファイルパスで解決)
+class FileSchemaProvider : public RAPIDJSON_NAMESPACE::IRemoteSchemaDocumentProvider {
+public:
+	FileSchemaProvider(const std::string& baseDir){
+		BaseDir_ = FString(UTF8_TO_TCHAR(baseDir.c_str()));
+	}
+
+	const RAPIDJSON_NAMESPACE::SchemaDocument* GetRemoteDocument(const char* uri, RAPIDJSON_NAMESPACE::SizeType length) override {
+		// file name (ex: "VRM.meta.schema.json")
+		FString UriStr(UTF8_TO_TCHAR(uri));
+		FString SchemaFileName = FPaths::GetCleanFilename(UriStr);
+
+		// path (ex: /Game/Schemas/vrm0/VRM.meta.schema.json)
+		FString FilePath = FPaths::Combine(BaseDir_, SchemaFileName);
+
+		auto* CachedSchema = SchemaCache_.Find(FilePath);
+		if (CachedSchema) {
+			return *CachedSchema;
+		}
+
+		TArray<uint8> FileContent;
+		if (FPaths::FileExists(FilePath)) {
+			FFileHelper::LoadFileToArray(FileContent, *FilePath);
+		}
+		if (FileContent.Num() == 0){
+			if (FilePath.Contains(TEXT("/glTF"))) {
+				UE_LOG(LogTemp, Log, TEXT("VRM4U_Schema: Failed to load schema: %s"), *FilePath);
+			} else {
+				UE_LOG(LogTemp, Warning, TEXT("VRM4U_Schema: Failed to load schema: %s"), *FilePath);
+			}
+			return nullptr;
+		}
+
+		// to string
+		std::string SchemaStr(reinterpret_cast<const char*>(FileContent.GetData()), FileContent.Num());
+
+
+		// parse
+		auto Doc = std::make_unique<RAPIDJSON_NAMESPACE::Document>();
+		if (Doc->Parse(SchemaStr.c_str()).HasParseError()) {
+			UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: parse error in %s: %s"), *FilePath,
+				UTF8_TO_TCHAR(RAPIDJSON_NAMESPACE::GetParseError_En(Doc->GetParseError())));
+			return nullptr;
+		}
+
+		// SchemaDocument
+		auto Schema = std::make_unique<RAPIDJSON_NAMESPACE::SchemaDocument>(*Doc, uri, length, this);
+		auto* Ptr = Schema.get();
+		SchemaCache_.Add(FilePath, Ptr);
+		DocCache_.Add(FilePath, std::move(Doc));
+		SchemaDocCache_.Add(FilePath, std::move(Schema));
+		return Ptr;
+	}
+
+private:
+	FString BaseDir_;
+	TMap<FString, RAPIDJSON_NAMESPACE::SchemaDocument*> SchemaCache_;
+	TMap<FString, std::unique_ptr<RAPIDJSON_NAMESPACE::Document>> DocCache_;
+	TMap<FString, std::unique_ptr<RAPIDJSON_NAMESPACE::SchemaDocument>> SchemaDocCache_;
+};
+
+
+// VRM1
+bool validateSchemaVRM1_internal(RAPIDJSON_NAMESPACE::Document& jsonDoc, const std::string& path, const std::string& fileExt) {
+
+	// ext check
+	// extなしなら通過
+	if (!jsonDoc.HasMember("extensions") || !jsonDoc["extensions"].HasMember(fileExt.c_str())) {
+		UE_LOG(LogTemp, Log, TEXT("VRM4U_Schema: no extensions/%s"), UTF8_TO_TCHAR(fileExt.c_str()));
+		// ここは成功扱い
+		return true;
+	}
+
+	std::string filename = fileExt + ".schema.json";
+	std::string schemaStr = ReadTextFileFromThirdparty(FString(UTF8_TO_TCHAR((path + "/" + filename).c_str())));
+
+	// parse
+	RAPIDJSON_NAMESPACE::Document schemaDoc;
+	if (schemaDoc.Parse(schemaStr.c_str()).HasParseError()) {
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: validation failed at: %s"), UTF8_TO_TCHAR(RAPIDJSON_NAMESPACE::GetParseError_En(jsonDoc.GetParseError())));
+		//std::cerr << "Schema parse error: " << RAPIDJSON_NAMESPACE::GetParseError_En(schemaDoc.GetParseError())
+		//	<< " at offset " << schemaDoc.GetErrorOffset() << std::endl;
+		return false;
+	}
+
+	FileSchemaProvider provider(std::string(TCHAR_TO_UTF8(*(GetPluginThirdpartyPath() / UTF8_TO_TCHAR(path.c_str())))));
+	RAPIDJSON_NAMESPACE::SchemaDocument schema(schemaDoc, nullptr, 0, &provider);
+	RAPIDJSON_NAMESPACE::SchemaValidator validator(schema);
+	RAPIDJSON_NAMESPACE::Value& vrmExtension = jsonDoc["extensions"][fileExt.c_str()];
+	if (!vrmExtension.Accept(validator)) {
+		RAPIDJSON_NAMESPACE::StringBuffer sb;
+		validator.GetInvalidSchemaPointer().StringifyUriFragment(sb);
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: Schema validation failed at: %s"), UTF8_TO_TCHAR(sb.GetString()));
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: nvalid keyword: %s"), UTF8_TO_TCHAR(validator.GetInvalidSchemaKeyword()));
+		return false;
+	}
+
+	UE_LOG(LogTemp, Log, TEXT("VRM4U_Schema: valid %s"), UTF8_TO_TCHAR(fileExt.c_str()));
+	return true;
+}
+bool validateSchemaVRM1(RAPIDJSON_NAMESPACE::Document& jsonDoc) {
+
+	bool ret = true;
+	ret &= validateSchemaVRM1_internal(jsonDoc, "vrm_specification/vrm1/VRMC_vrm-1.0/schema", "VRMC_vrm");
+	ret &= validateSchemaVRM1_internal(jsonDoc, "vrm_specification/vrm1/VRMC_springBone-1.0/schema", "VRMC_springBone");
+	ret &= validateSchemaVRM1_internal(jsonDoc, "vrm_specification/vrm1/VRMC_node_constraint-1.0/schema", "VRMC_node_constraint");
+	ret &= validateSchemaVRM1_internal(jsonDoc, "vrm_specification/vrm1/VRMC_vrm_animation-1.0/schema", "VRMC_vrm_animation");
+
+	return ret;
+}
+
+
+// VRM0
+bool validateSchemaVRM0_internal(RAPIDJSON_NAMESPACE::Document &jsonDoc, const std::string& path, const std::string& filename) {
+
+	std::string schemaStr = ReadTextFileFromThirdparty(FString(UTF8_TO_TCHAR((path + "/" + filename).c_str())));
+
+	// parse
+	RAPIDJSON_NAMESPACE::Document schemaDoc;
+	if (schemaDoc.Parse(schemaStr.c_str()).HasParseError()) {
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: validation failed at: %s"), UTF8_TO_TCHAR(RAPIDJSON_NAMESPACE::GetParseError_En(jsonDoc.GetParseError())));
+		//std::cerr << "Schema parse error: " << RAPIDJSON_NAMESPACE::GetParseError_En(schemaDoc.GetParseError())
+		//	<< " at offset " << schemaDoc.GetErrorOffset() << std::endl;
+		return false;
+	}
+
+	// ext
+	if (!jsonDoc.HasMember("extensions") || !jsonDoc["extensions"].HasMember("VRM")) {
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: no extensions/vrm"));
+		//std::cerr << "Missing VRMC_vrm extension in JSON" << std::endl;
+		return false;
+	}
+
+	FileSchemaProvider provider(std::string( TCHAR_TO_UTF8(*(GetPluginThirdpartyPath() / UTF8_TO_TCHAR(path.c_str())))) );
+	RAPIDJSON_NAMESPACE::SchemaDocument schema(schemaDoc, nullptr, 0, &provider);
+	RAPIDJSON_NAMESPACE::SchemaValidator validator(schema);
+	RAPIDJSON_NAMESPACE::Value& vrmExtension = jsonDoc["extensions"]["VRM"];
+	if (!vrmExtension.Accept(validator)) {
+		// エラー詳細を出力
+		RAPIDJSON_NAMESPACE::StringBuffer sb;
+		validator.GetInvalidSchemaPointer().StringifyUriFragment(sb);
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: Schema validation failed at: %s"), UTF8_TO_TCHAR(sb.GetString()));
+		UE_LOG(LogTemp, Error, TEXT("VRM4U_Schema: nvalid keyword: %s"), UTF8_TO_TCHAR(validator.GetInvalidSchemaKeyword()));
+		return false;
+	}
+
+	UE_LOG(LogTemp, Log, TEXT("VRM4U_Schema: valid /%s"), UTF8_TO_TCHAR(filename.c_str()));
+	return true;
+}
+bool validateSchemaVRM0(RAPIDJSON_NAMESPACE::Document& jsonDoc) {
+
+	return validateSchemaVRM0_internal(jsonDoc, "vrm_specification/vrm0/schema", "vrm.schema.json");
+}
+
+
+bool VrmJson::validateSchema() {
+	bEnable = false;
+
+	std::vector<char> s;
+	//std::string ss = ReadTextFileFromThirdparty(TEXT("vrm_specification/vrm0/schema/vrm.schema.json"));
+	//std::string ss = ReadTextFileFromThirdparty(TEXT("vrm_specification/vrm1/VRMC_vrm-1.0/schema/VRMC_vrm.schema.json"));
+
+	if (VRMIsVRM10(doc)) {
+		if (validateSchemaVRM1(doc)) {
+			// vrm1 ok
+			bEnable = true;
+		} else {
+			// error
+			UE_LOG(LogTemp, Warning, TEXT("VRM4U_Schema: VRM1 validation failed"));
+		}
+	} else {
+		if (validateSchemaVRM0(doc)) {
+			bEnable = true;
+			// vrm0 ok
+		} else {
+			// error
+			UE_LOG(LogTemp, Warning, TEXT("VRM4U_Schema: VRM0 validation failed"));
+		}
+	}
+
+	if (bEnable == false) {
+		doc.Clear();
+	}
+	return bEnable;
+}
+
+bool VrmJson::init(const uint8_t* pData, size_t size) {
+	bEnable = false;
+
+	std::vector<char> v;
+	v.resize(size);
+	memcpy(&v[0], pData, size);
+	v.push_back(0);
+
+
+	if (doc.Parse(&v[0]).HasParseError()) {
+		UE_LOG(LogTemp, Warning, TEXT("VRM4U_Schema: parse error: %s"), UTF8_TO_TCHAR(RAPIDJSON_NAMESPACE::GetParseError_En(doc.GetParseError())));
+		//std::cerr << "Schema parse error: " << RAPIDJSON_NAMESPACE::GetParseError_En(schemaDoc.GetParseError())
+		//	<< " at offset " << schemaDoc.GetErrorOffset() << std::endl;
+		return false;
+	}
+
+	bEnable = true;
+
+
+	return true;
+}
+

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmLoaderComponent.cpp

@@ -0,0 +1,45 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+// ApplicationLifecycleComponent.cpp: Component to handle receiving notifications from the OS about application state (activated, suspended, termination, etc)
+
+
+#include "VrmLoaderComponent.h"
+#include "VrmAssetListObject.h"
+#include "LoaderBPFunctionLibrary.h"
+
+#include "Misc/CoreDelegates.h"
+
+
+UVrmLoaderComponent::UVrmLoaderComponent(const FObjectInitializer& ObjectInitializer)
+	: Super(ObjectInitializer)
+{
+}
+
+void UVrmLoaderComponent::OnRegister()
+{
+	Super::OnRegister();
+}
+
+void UVrmLoaderComponent::OnUnregister()
+{
+	Super::OnUnregister();
+}
+
+bool UVrmLoaderComponent::LoadVRMFile(const UVrmAssetListObject *InVrmAsset, UVrmAssetListObject *&OutVrmAsset, FString filepath) {
+	return ULoaderBPFunctionLibrary::LoadVRMFileLocal(InVrmAsset, OutVrmAsset, filepath);
+}
+
+bool UVrmLoaderComponent::LoadVRMFileAsync(const UVrmAssetListObject *InVrmAsset, FString filepath) {
+
+	ULoaderBPFunctionLibrary::LoadVRMFileLocal(InVrmAsset, AssetList, filepath);
+	bResultQueue = true;
+	return true;
+}
+
+void UVrmLoaderComponent::TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction) {
+	Super::TickComponent(DeltaTime, TickType, ThisTickFunction);
+
+	if (bResultQueue) {
+		bResultQueue = false;
+		OnFinishLoad.Broadcast(AssetList);
+	}
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmLoaderUtil.cpp

@@ -0,0 +1,710 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmConvert.h"
+#include "VRM4ULoaderLog.h"
+
+#include "CoreMinimal.h"
+#include "UObject/ObjectMacros.h"
+#include "UObject/UObjectHash.h"
+#include "UObject/UObjectIterator.h"
+#include "UObject/Package.h"
+
+#include "Async/ParallelFor.h"
+#include "Engine/Texture2D.h"
+#include "TextureResource.h"
+#include "Modules/ModuleManager.h"
+#include "IImageWrapper.h"
+#include "IImageWrapperModule.h"
+#include "PixelFormat.h"
+#include "RenderUtils.h"
+
+
+/////
+
+//test
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+
+#if WITH_EDITOR==0
+#define VRM4U_UseLocalTGAHeader 1
+#endif
+
+#else
+#define VRM4U_UseLocalTGAHeader 1
+#endif
+
+
+#ifndef  VRM4U_UseLocalTGAHeader
+#define VRM4U_UseLocalTGAHeader 0
+#endif
+
+#if	VRM4U_UseLocalTGAHeader
+
+#pragma pack(push,1)
+
+struct FTGAFileHeader
+{
+	uint8 IdFieldLength;
+	uint8 ColorMapType;
+	uint8 ImageTypeCode;		// 2 for uncompressed RGB format
+	uint16 ColorMapOrigin;
+	uint16 ColorMapLength;
+	uint8 ColorMapEntrySize;
+	uint16 XOrigin;
+	uint16 YOrigin;
+	uint16 Width;
+	uint16 Height;
+	uint8 BitsPerPixel;
+	uint8 ImageDescriptor;
+	friend FArchive& operator<<(FArchive& Ar, FTGAFileHeader& H)
+	{
+		Ar << H.IdFieldLength << H.ColorMapType << H.ImageTypeCode;
+		Ar << H.ColorMapOrigin << H.ColorMapLength << H.ColorMapEntrySize;
+		Ar << H.XOrigin << H.YOrigin << H.Width << H.Height << H.BitsPerPixel;
+		Ar << H.ImageDescriptor;
+		return Ar;
+	}
+};
+#pragma pack(pop)
+#endif
+
+void DecompressTGA_RLE_32bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint8* ImageData = (uint8*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+	uint32	Pixel = 0;
+	int32     RLERun = 0;
+	int32     RAWRun = 0;
+
+	for (int32 Y = TGA->Height - 1; Y >= 0; Y--) // Y-flipped.
+	{
+		for (int32 X = 0; X < TGA->Width; X++)
+		{
+			if (RLERun > 0)
+			{
+				RLERun--;  // reuse current Pixel data.
+			} else if (RAWRun == 0) // new raw pixel or RLE-run.
+			{
+				uint8 RLEChunk = *(ImageData++);
+				if (RLEChunk & 0x80)
+				{
+					RLERun = (RLEChunk & 0x7F) + 1;
+					RAWRun = 1;
+				} else
+				{
+					RAWRun = (RLEChunk & 0x7F) + 1;
+				}
+			}
+			// Retrieve new pixel data - raw run or single pixel for RLE stretch.
+			if (RAWRun > 0)
+			{
+				Pixel = *(uint32*)ImageData; // RGBA 32-bit dword.
+				ImageData += 4;
+				RAWRun--;
+				RLERun--;
+			}
+			// Store.
+			*((TextureData + Y * TGA->Width) + X) = Pixel;
+		}
+	}
+}
+
+void DecompressTGA_RLE_24bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint8* ImageData = (uint8*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+	uint8    Pixel[4] = {};
+	int32     RLERun = 0;
+	int32     RAWRun = 0;
+
+	for (int32 Y = TGA->Height - 1; Y >= 0; Y--) // Y-flipped.
+	{
+		for (int32 X = 0; X < TGA->Width; X++)
+		{
+			if (RLERun > 0)
+				RLERun--;  // reuse current Pixel data.
+			else if (RAWRun == 0) // new raw pixel or RLE-run.
+			{
+				uint8 RLEChunk = *(ImageData++);
+				if (RLEChunk & 0x80)
+				{
+					RLERun = (RLEChunk & 0x7F) + 1;
+					RAWRun = 1;
+				} else
+				{
+					RAWRun = (RLEChunk & 0x7F) + 1;
+				}
+			}
+			// Retrieve new pixel data - raw run or single pixel for RLE stretch.
+			if (RAWRun > 0)
+			{
+				Pixel[0] = *(ImageData++);
+				Pixel[1] = *(ImageData++);
+				Pixel[2] = *(ImageData++);
+				Pixel[3] = 255;
+				RAWRun--;
+				RLERun--;
+			}
+			// Store.
+			*((TextureData + Y * TGA->Width) + X) = *(uint32*)&Pixel;
+		}
+	}
+}
+
+void DecompressTGA_RLE_16bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint16* ImageData = (uint16*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+	uint16  FilePixel = 0;
+	uint32	TexturePixel = 0;
+	int32     RLERun = 0;
+	int32     RAWRun = 0;
+
+	for (int32 Y = TGA->Height - 1; Y >= 0; Y--) // Y-flipped.
+	{
+		for (int32 X = 0; X < TGA->Width; X++)
+		{
+			if (RLERun > 0)
+				RLERun--;  // reuse current Pixel data.
+			else if (RAWRun == 0) // new raw pixel or RLE-run.
+			{
+				uint8 RLEChunk = *((uint8*)ImageData);
+				ImageData = (uint16*)(((uint8*)ImageData) + 1);
+				if (RLEChunk & 0x80)
+				{
+					RLERun = (RLEChunk & 0x7F) + 1;
+					RAWRun = 1;
+				} else
+				{
+					RAWRun = (RLEChunk & 0x7F) + 1;
+				}
+			}
+			// Retrieve new pixel data - raw run or single pixel for RLE stretch.
+			if (RAWRun > 0)
+			{
+				FilePixel = *(ImageData++);
+				RAWRun--;
+				RLERun--;
+			}
+			// Convert file format A1R5G5B5 into pixel format B8G8R8B8
+			TexturePixel = (FilePixel & 0x001F) << 3;
+			TexturePixel |= (FilePixel & 0x03E0) << 6;
+			TexturePixel |= (FilePixel & 0x7C00) << 9;
+			TexturePixel |= (FilePixel & 0x8000) << 16;
+			// Store.
+			*((TextureData + Y * TGA->Width) + X) = TexturePixel;
+		}
+	}
+}
+
+void DecompressTGA_32bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint32* ImageData = (uint32*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+
+	for (int32 Y = 0; Y < TGA->Height; Y++)
+	{
+		FMemory::Memcpy(TextureData + Y * TGA->Width, ImageData + (TGA->Height - Y - 1) * TGA->Width, TGA->Width * 4);
+	}
+}
+
+void DecompressTGA_16bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint16* ImageData = (uint16*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+	uint16    FilePixel = 0;
+	uint32	TexturePixel = 0;
+
+	for (int32 Y = TGA->Height - 1; Y >= 0; Y--)
+	{
+		for (int32 X = 0; X < TGA->Width; X++)
+		{
+			FilePixel = *ImageData++;
+			// Convert file format A1R5G5B5 into pixel format B8G8R8A8
+			TexturePixel = (FilePixel & 0x001F) << 3;
+			TexturePixel |= (FilePixel & 0x03E0) << 6;
+			TexturePixel |= (FilePixel & 0x7C00) << 9;
+			TexturePixel |= (FilePixel & 0x8000) << 16;
+			// Store.
+			*((TextureData + Y * TGA->Width) + X) = TexturePixel;
+		}
+	}
+}
+
+void DecompressTGA_24bpp(const FTGAFileHeader* TGA, uint32* TextureData)
+{
+	uint8* IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	uint8* ColorMap = IdData + TGA->IdFieldLength;
+	uint8* ImageData = (uint8*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+	uint8    Pixel[4];
+
+	for (int32 Y = 0; Y < TGA->Height; Y++)
+	{
+		for (int32 X = 0; X < TGA->Width; X++)
+		{
+			Pixel[0] = *((ImageData + (TGA->Height - Y - 1) * TGA->Width * 3) + X * 3 + 0);
+			Pixel[1] = *((ImageData + (TGA->Height - Y - 1) * TGA->Width * 3) + X * 3 + 1);
+			Pixel[2] = *((ImageData + (TGA->Height - Y - 1) * TGA->Width * 3) + X * 3 + 2);
+			Pixel[3] = 255;
+			*((TextureData + Y * TGA->Width) + X) = *(uint32*)&Pixel;
+		}
+	}
+}
+
+void DecompressTGA_8bpp(const FTGAFileHeader* TGA, uint8* TextureData)
+{
+	const uint8* const IdData = (uint8*)TGA + sizeof(FTGAFileHeader);
+	const uint8* const ColorMap = IdData + TGA->IdFieldLength;
+	const uint8* const ImageData = (uint8*)(ColorMap + (TGA->ColorMapEntrySize + 4) / 8 * TGA->ColorMapLength);
+
+	int32 RevY = 0;
+	for (int32 Y = TGA->Height - 1; Y >= 0; --Y)
+	{
+		const uint8* ImageCol = ImageData + (Y * TGA->Width);
+		uint8* TextureCol = TextureData + (RevY++ * TGA->Width);
+		FMemory::Memcpy(TextureCol, ImageCol, TGA->Width);
+	}
+}
+
+
+bool DecompressTGA_helper(
+	const int dummy,
+	const FTGAFileHeader* TGA,
+	uint32*& TextureData,
+	const int32 TextureDataSize,
+	FFeedbackContext* Warn = nullptr)
+{
+	if (TGA->ImageTypeCode == 10) // 10 = RLE compressed 
+	{
+		// RLE compression: CHUNKS: 1 -byte header, high bit 0 = raw, 1 = compressed
+		// bits 0-6 are a 7-bit count; count+1 = number of raw pixels following, or rle pixels to be expanded. 
+		if (TGA->BitsPerPixel == 32)
+		{
+			DecompressTGA_RLE_32bpp(TGA, TextureData);
+		} else if (TGA->BitsPerPixel == 24)
+		{
+			DecompressTGA_RLE_24bpp(TGA, TextureData);
+		} else if (TGA->BitsPerPixel == 16)
+		{
+			DecompressTGA_RLE_16bpp(TGA, TextureData);
+		} else
+		{
+			//Warn->Logf(ELogVerbosity::Error, TEXT("TGA uses an unsupported rle-compressed bit-depth: %u"), TGA->BitsPerPixel);
+			return false;
+		}
+	} else if (TGA->ImageTypeCode == 2) // 2 = Uncompressed RGB
+	{
+		if (TGA->BitsPerPixel == 32)
+		{
+			DecompressTGA_32bpp(TGA, TextureData);
+		} else if (TGA->BitsPerPixel == 16)
+		{
+			DecompressTGA_16bpp(TGA, TextureData);
+		} else if (TGA->BitsPerPixel == 24)
+		{
+			DecompressTGA_24bpp(TGA, TextureData);
+		} else
+		{
+			//Warn->Logf(ELogVerbosity::Error, TEXT("TGA uses an unsupported bit-depth: %u"), TGA->BitsPerPixel);
+			return false;
+		}
+	}
+	// Support for alpha stored as pseudo-color 8-bit TGA
+	else if (TGA->ColorMapType == 1 && TGA->ImageTypeCode == 1 && TGA->BitsPerPixel == 8)
+	{
+		DecompressTGA_8bpp(TGA, (uint8*)TextureData);
+	}
+	// standard grayscale
+	else if (TGA->ColorMapType == 0 && TGA->ImageTypeCode == 3 && TGA->BitsPerPixel == 8)
+	{
+		DecompressTGA_8bpp(TGA, (uint8*)TextureData);
+	} else
+	{
+		//Warn->Logf(ELogVerbosity::Error, TEXT("TGA is an unsupported type: %u"), TGA->ImageTypeCode);
+		return false;
+	}
+
+	// Flip the image data if the flip bits are set in the TGA header.
+	bool FlipX = (TGA->ImageDescriptor & 0x10) ? 1 : 0;
+	bool FlipY = (TGA->ImageDescriptor & 0x20) ? 1 : 0;
+	if (FlipY || FlipX)
+	{
+		TArray<uint8> FlippedData;
+		FlippedData.AddUninitialized(TextureDataSize);
+
+		int32 NumBlocksX = TGA->Width;
+		int32 NumBlocksY = TGA->Height;
+		int32 BlockBytes = TGA->BitsPerPixel == 8 ? 1 : 4;
+
+		uint8* MipData = (uint8*)TextureData;
+
+		for (int32 Y = 0; Y < NumBlocksY; Y++)
+		{
+			for (int32 X = 0; X < NumBlocksX; X++)
+			{
+				int32 DestX = FlipX ? (NumBlocksX - X - 1) : X;
+				int32 DestY = FlipY ? (NumBlocksY - Y - 1) : Y;
+				FMemory::Memcpy(
+					&FlippedData[(DestX + DestY * NumBlocksX) * BlockBytes],
+					&MipData[(X + Y * NumBlocksX) * BlockBytes],
+					BlockBytes
+				);
+			}
+		}
+		FMemory::Memcpy(MipData, FlippedData.GetData(), FlippedData.Num());
+	}
+
+	return true;
+}
+
+
+bool DecompressTGA(
+	const FTGAFileHeader* TGA,
+	VRMUtil::FImportImage& OutImage,
+	FFeedbackContext* Warn = nullptr)
+{
+	if (TGA->ColorMapType == 1 && TGA->ImageTypeCode == 1 && TGA->BitsPerPixel == 8)
+	{
+		// Notes: The Scaleform GFx exporter (dll) strips all font glyphs into a single 8-bit texture.
+		// The targa format uses this for a palette index; GFx uses a palette of (i,i,i,i) so the index
+		// is also the alpha value.
+		//
+		// We store the image as PF_G8, where it will be used as alpha in the Glyph shader.
+		OutImage.Init2DWithOneMip(
+			TGA->Width,
+			TGA->Height,
+			TSF_G8);
+		OutImage.CompressionSettings = TC_Grayscale;
+	} else if (TGA->ColorMapType == 0 && TGA->ImageTypeCode == 3 && TGA->BitsPerPixel == 8)
+	{
+		// standard grayscale images
+		OutImage.Init2DWithOneMip(
+			TGA->Width,
+			TGA->Height,
+			TSF_G8);
+		OutImage.CompressionSettings = TC_Grayscale;
+	} else
+	{
+		if (TGA->ImageTypeCode == 10) // 10 = RLE compressed 
+		{
+			if (TGA->BitsPerPixel != 32 &&
+				TGA->BitsPerPixel != 24 &&
+				TGA->BitsPerPixel != 16)
+			{
+				//Warn->Logf(ELogVerbosity::Error, TEXT("TGA uses an unsupported rle-compressed bit-depth: %u"), TGA->BitsPerPixel);
+				return false;
+			}
+		} else
+		{
+			if (TGA->BitsPerPixel != 32 &&
+				TGA->BitsPerPixel != 16 &&
+				TGA->BitsPerPixel != 24)
+			{
+				//Warn->Logf(ELogVerbosity::Error, TEXT("TGA uses an unsupported bit-depth: %u"), TGA->BitsPerPixel);
+				return false;
+			}
+		}
+
+		OutImage.Init2DWithOneMip(
+			TGA->Width,
+			TGA->Height,
+			TSF_BGRA8);
+	}
+
+	int32 TextureDataSize = OutImage.RawData.Num();
+	uint32* TextureData = (uint32*)OutImage.RawData.GetData();
+
+	return DecompressTGA_helper(0, TGA, TextureData, TextureDataSize, Warn);
+}
+
+
+UTexture2D* VRMLoaderUtil::CreateTextureFromImage(FString name, UPackage* package, const void* vBuffer, const size_t Length, bool bGenerateMips, bool bNormal, bool bGreenFlip) {
+
+	const char* Buffer = (const char*)vBuffer;
+	VRMUtil::FImportImage img;
+	if (VRMLoaderUtil::LoadImageFromMemory(Buffer, Length, img) == false) {
+		return nullptr;
+	}
+	UTexture2D *tex = CreateTexture(img.SizeX, img.SizeY, name, package);
+
+	if (tex == nullptr) {
+		return nullptr;
+	}
+	{
+		uint8* MipData = (uint8*)GetPlatformData(tex)->Mips[0].BulkData.Lock(LOCK_READ_WRITE);
+		if (bGreenFlip) {
+			//for (int32 y = 0; y < img.SizeY; y++)
+			ParallelFor(img.SizeY, [&](int y) {
+				const uint8* c = img.RawData.GetData() + (y * img.SizeX * sizeof(FColor));
+				uint8* DestPtr = MipData + (y * img.SizeX * sizeof(FColor));
+				for (int32 x = 0; x < img.SizeX; x++)
+				{
+					DestPtr[0] = c[0];
+					DestPtr[1] = 255 - c[1];
+					DestPtr[2] = c[2];
+					DestPtr[3] = c[3];
+
+					DestPtr += 4;
+					c += 4;
+				}
+				});
+		}else{
+			FMemory::Memcpy(MipData, img.RawData.GetData(), img.RawData.Num());
+		}
+			/*
+			for (int32 y = 0; y < Height; y++)
+			{
+				const aiTexel* c = &(t.pcData[y * Width]);
+				uint8* DestPtr = &MipData[y * Width * sizeof(FColor)];
+				for (int32 x = 0; x < Width; x++)
+				{
+					*DestPtr++ = c->b;
+					*DestPtr++ = c->g;
+					*DestPtr++ = c->r;
+					*DestPtr++ = c->a;
+					c++;
+				}
+			}
+			*/
+		GetPlatformData(tex)->Mips[0].BulkData.Unlock();
+	}
+
+	// Set options
+	tex->SRGB = true;// bUseSRGB;
+	tex->CompressionSettings = TC_Default;
+	if (bNormal) {
+		tex->CompressionSettings = TC_Normalmap;
+		tex->SRGB = 0;
+#if WITH_EDITORONLY_DATA
+		tex->CompressionNoAlpha = true;
+#endif
+	}
+	tex->AddressX = TA_Wrap;
+	tex->AddressY = TA_Wrap;
+
+	if (VRMConverter::IsImportMode() == false) {
+		// skip updateresource. call manuary
+		//tex->UpdateResource();
+		return tex;
+	}
+
+#if WITH_EDITORONLY_DATA
+	tex->CompressionNone = false;
+	tex->DeferCompression = true;
+	if (bGenerateMips && FMath::IsPowerOfTwo(img.SizeX) && FMath::IsPowerOfTwo(img.SizeY)) {
+		tex->MipGenSettings = TMGS_FromTextureGroup;
+	} else {
+		tex->MipGenSettings = TMGS_NoMipmaps;
+	}
+	{
+		// alpha check
+		bool noAlpha = true;
+		uint8 *p = img.RawData.GetData();
+		for (int y = 0; y < img.SizeY; ++y) {
+			for (int x = 0; x < img.SizeX; ++x) {
+				if (p[(x + y * img.SizeX) * 4 + 3] != 255) {
+					noAlpha = false;
+					break;
+				}
+			}
+			if (noAlpha == false) break;
+		}
+		tex->CompressionNoAlpha = noAlpha;
+	}
+	tex->Source.Init(img.SizeX, img.SizeY, 1, 1, ETextureSourceFormat::TSF_BGRA8, img.RawData.GetData());
+	//NewTexture2D->Source.Compress();
+#endif
+
+			// Update the remote texture data
+	tex->UpdateResource();
+#if WITH_EDITOR
+	tex->PostEditChange();
+#endif
+
+
+	return tex;
+}
+
+
+UTexture2D* VRMLoaderUtil::CreateTexture(int32 InSizeX, int32 InSizeY, FString name, UPackage* package) {
+	auto format = PF_B8G8R8A8;
+	UTexture2D* NewTexture = NULL;
+	if (InSizeX > 0 && InSizeY > 0 &&
+		(InSizeX % GPixelFormats[format].BlockSizeX) == 0 &&
+		(InSizeY % GPixelFormats[format].BlockSizeY) == 0)
+	{
+		if (package == GetTransientPackage()) {
+			NewTexture = NewObject<UTexture2D>(GetTransientPackage(), NAME_None, EObjectFlags::RF_Public | RF_Transient);
+		} else {
+			TArray<UObject*> ret;
+			GetObjectsWithOuter(package, ret);
+			for (auto* a : ret) {
+				auto s = a->GetName().ToLower();
+				if (s.IsEmpty()) continue;
+
+				if (s == name.ToLower()) {
+					//a->ClearFlags(EObjectFlags::RF_Standalone);
+					//a->SetFlags(EObjectFlags::RF_Public | RF_Transient);
+					//a->ConditionalBeginDestroy();
+					//a->Rename(TEXT("aaaaaaa"));
+					//auto *q = Cast<USkeletalMesh>(a);
+					//if (q) {
+					//	q->Materials.Empty();
+					//}
+					a->Rename(NULL, GetTransientPackage(), REN_DontCreateRedirectors | REN_NonTransactional | REN_ForceNoResetLoaders);
+
+					break;
+				}
+			}
+
+			NewTexture = VRM4U_NewObject<UTexture2D>(
+				// GetTransientPackage(),
+				package,
+				*name,
+				//RF_Transient
+				RF_Public | RF_Standalone
+				);
+		}
+		NewTexture->Modify();
+#if WITH_EDITOR
+		NewTexture->PreEditChange(NULL);
+#endif
+
+		SetPlatformData(NewTexture, new FTexturePlatformData());
+		GetPlatformData(NewTexture)->SizeX = InSizeX;
+		GetPlatformData(NewTexture)->SizeY = InSizeY;
+		GetPlatformData(NewTexture)->PixelFormat = format;
+
+		int32 NumBlocksX = InSizeX / GPixelFormats[format].BlockSizeX;
+		int32 NumBlocksY = InSizeY / GPixelFormats[format].BlockSizeY;
+#if	UE_VERSION_OLDER_THAN(4,23,0)
+		FTexture2DMipMap* Mip = new(NewTexture->PlatformData->Mips) FTexture2DMipMap();
+#else
+		FTexture2DMipMap* Mip = new FTexture2DMipMap();
+		GetPlatformData(NewTexture)->Mips.Add(Mip);
+#endif
+		Mip->SizeX = InSizeX;
+		Mip->SizeY = InSizeY;
+		Mip->BulkData.Lock(LOCK_READ_WRITE);
+		Mip->BulkData.Realloc(NumBlocksX * NumBlocksY * GPixelFormats[format].BlockBytes);
+		Mip->BulkData.Unlock();
+	} else
+	{
+		UE_LOG(LogVRM4ULoader, Warning, TEXT("Invalid parameters specified for UTexture2D::Create()"));
+	}
+	return NewTexture;
+}
+
+
+
+bool VRMLoaderUtil::LoadImageFromMemory(const void* vBuffer, const size_t Length, VRMUtil::FImportImage& OutImage) {
+	const char* Buffer = (const char*)vBuffer;
+
+	IImageWrapperModule& ImageWrapperModule = FModuleManager::LoadModuleChecked<IImageWrapperModule>(FName("ImageWrapper"));
+	TArray<TSharedPtr<IImageWrapper> > ImageWrapperList = {
+		ImageWrapperModule.CreateImageWrapper(EImageFormat::PNG),
+		ImageWrapperModule.CreateImageWrapper(EImageFormat::JPEG),
+		ImageWrapperModule.CreateImageWrapper(EImageFormat::BMP),
+	};
+
+	TSharedPtr<IImageWrapper> ImageWrapper;
+	for (auto& a : ImageWrapperList) {
+		if (a.IsValid() == false) continue;
+		if (a->SetCompressed(Buffer, Length) == false) continue;
+		ImageWrapper = a;
+		break;
+	}
+	if (ImageWrapper.IsValid()) {
+
+#if	UE_VERSION_OLDER_THAN(4,25,0)
+#else
+		TArray<uint8> RawData;
+#endif
+		const TArray<uint8>* pRawData = nullptr;
+
+#if	UE_VERSION_OLDER_THAN(4,25,0)
+		if (ImageWrapper.IsValid()) {
+			if (ImageWrapper->GetRaw(ERGBFormat::BGRA, 8, pRawData) == false) return false;
+		}
+#else
+		if (ImageWrapper.IsValid()) {
+			if (ImageWrapper->GetRaw(ERGBFormat::BGRA, 8, RawData) == false) return false;
+		}
+		pRawData = &RawData;
+#endif
+
+		const int Width = FMath::Max(ImageWrapper->GetWidth(), 1);
+		const int Height = FMath::Max(ImageWrapper->GetHeight(), 1);
+		OutImage.Init2DWithOneMip(Width, Height, TSF_BGRA8);
+
+		{
+			uint8* MipData = (uint8*)OutImage.RawData.GetData();
+			if (ImageWrapper.IsValid()) {
+				if (pRawData) {
+					FMemory::Memcpy(MipData, pRawData->GetData(), pRawData->Num());
+				} else {
+					for (int32 y = 0; y < Height; y++)
+					{
+						const uint8* c = pRawData->GetData() + (y * Width);
+						uint8* DestPtr = &MipData[y * Width * sizeof(FColor)];
+						for (int32 x = 0; x < Width; x++)
+						{
+							*DestPtr++ = c[0];
+							*DestPtr++ = c[1];
+							*DestPtr++ = c[2];
+							*DestPtr++ = c[3];
+							c++;
+						}
+					}
+				}
+			} else {
+				//int no = pmxTexNameList.Num();
+				//MipData[0] = (no & 1 ? 255 : 0);
+				//MipData[1] = (no & 2 ? 255 : 0);
+				//MipData[2] = (no & 4 ? 255 : 0);
+				//MipData[3] = 255;
+			}
+		}
+		return true;
+	}
+
+
+	//
+	// TGA
+	//
+	// Support for alpha stored as pseudo-color 8-bit TGA
+	const FTGAFileHeader* TGA = (FTGAFileHeader*)Buffer;
+	if (Length >= sizeof(FTGAFileHeader) &&
+		((TGA->ColorMapType == 0 && TGA->ImageTypeCode == 2) ||
+			// ImageTypeCode 3 is greyscale
+			(TGA->ColorMapType == 0 && TGA->ImageTypeCode == 3) ||
+			(TGA->ColorMapType == 0 && TGA->ImageTypeCode == 10) ||
+			(TGA->ColorMapType == 1 && TGA->ImageTypeCode == 1 && TGA->BitsPerPixel == 8)))
+	{
+		// Check the resolution of the imported texture to ensure validity
+		//if (!IsImportResolutionValid(TGA->Width, TGA->Height, bAllowNonPowerOfTwo, Warn))
+		//{
+		//	return false;
+		//}
+
+		const bool bResult = DecompressTGA(TGA, OutImage);
+		if (bResult && OutImage.CompressionSettings == TC_Grayscale && TGA->ImageTypeCode == 3)
+		{
+			// default grayscales to linear as they wont get compression otherwise and are commonly used as masks
+			OutImage.SRGB = false;
+		}
+
+		return bResult;
+	}
+
+	return false;
+}
+
+
+

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmSkeletalMesh.cpp

@@ -0,0 +1,14 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmSkeletalMesh.h"
+#include "Rendering/SkeletalMeshLODRenderData.h"
+#include "Rendering/SkeletalMeshRenderData.h"
+
+
+
+
+
+void UVrmSkeletalMesh::Proc() {
+
+
+}

Plugins/VRM4U/Source/VRM4ULoader/Private/VrmSkeleton.cpp

@@ -0,0 +1,661 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#include "VrmSkeleton.h"
+#include "VrmAssetListObject.h"
+#include "VrmMetaObject.h"
+#include "Engine/SkeletalMesh.h"
+//#include "UnStringConv.h
+
+#include "VrmConvert.h"
+#include "VrmUtil.h"
+#include "VRM4ULoaderLog.h"
+
+#include <assimp/scene.h>       // Output data structure
+#include <assimp/mesh.h>       // Output data structure
+
+static int countParent(const aiNode *node, TArray<const aiNode*> &t, int c) {
+	for (auto &a : t) {
+		for (uint32_t i = 0; i < a->mNumChildren; ++i) {
+			if (node == a->mChildren[i]) {
+				return countParent(a, t, c + 1);
+			}
+		}
+	}
+	return c;
+}
+
+static int countChild(aiNode *node, int c) {
+	c += node->mNumChildren;
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		c = countChild(node->mChildren[i], c);
+	}
+	return c;
+}
+
+static bool findActiveBone(const aiNode *node, TArray<FString> &table) {
+
+	if (table.Find(node->mName.C_Str()) != INDEX_NONE) {
+		return true;
+	}
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		if (findActiveBone(node->mChildren[i], table)) {
+			return true;
+		}
+	}
+	return false;
+}
+
+static TArray<FString> makeActiveBone(const aiScene *scene) {
+	TArray <FString> boneNameTable;
+	for (uint32 m = 0; m < scene->mNumMeshes; ++m) {
+		const auto &aiM = *scene->mMeshes[m];
+
+		for (uint32 b = 0; b < aiM.mNumBones; ++b) {
+			const auto &aiB = *aiM.mBones[b];
+			boneNameTable.AddUnique(aiB.mName.C_Str());
+		}
+	}
+	return boneNameTable;
+}
+
+static TMap<const aiNode*, const aiBone* > makeAiBoneTable(const aiScene* scene, TArray<const aiNode*> &nodeArray) {
+	TMap<const aiNode*, const aiBone*> table;
+
+	for (uint32 m = 0; m < scene->mNumMeshes; ++m) {
+		const auto& aiM = *scene->mMeshes[m];
+
+		for (uint32 b = 0; b < aiM.mNumBones; ++b) {
+			const auto& aiB = aiM.mBones[b];
+			if (nodeArray.Find(aiB->mNode)){
+				table.Add(aiB->mNode, aiB);
+				//break;
+			}
+		}
+	}
+
+	return table;
+}
+
+static TMap<const aiNode*, const aiSkeletonBone* > makeAiSkeletonBoneTable(const aiScene* scene, TArray<const aiNode*>& nodeArray) {
+	TMap<const aiNode*, const aiSkeletonBone*> table;
+
+	for (uint32 m = 0; m < scene->mNumSkeletons; ++m) {
+		const auto& aiS = *scene->mSkeletons[m];
+
+		for (uint32 b = 0; b < aiS.mNumBones; ++b) {
+			const auto& aiB = aiS.mBones[b];
+			if (nodeArray.Find(aiB->mNode)) {
+				table.Add(aiB->mNode, aiB);
+				//break;
+			}
+		}
+	}
+	return table;
+}
+
+static FMatrix convertAiMatToFMatrix(aiMatrix4x4 t, bool bOffsetMode = false) {
+	FMatrix m;
+
+	m.M[0][0] = t.a1; m.M[1][0] = t.a2; m.M[2][0] = t.a3; m.M[3][0] = -t.a4 * 100.f;
+	m.M[0][1] = t.b1; m.M[1][1] = t.b2; m.M[2][1] = t.b3; m.M[3][1] = t.c4 * 100.f;//t.b4*100.f;
+	m.M[0][2] = t.c1; m.M[1][2] = t.c2; m.M[2][2] = t.c3; m.M[3][2] = t.b4 * 100.f;//t.c4*100.f;
+	m.M[0][3] = t.d1; m.M[1][3] = t.d2; m.M[2][3] = t.d3; m.M[3][3] = t.d4;
+
+	if (VRMConverter::Options::Get().IsVRM10Model()) {
+		m.M[0][0] = t.a1; m.M[1][0] = t.a2; m.M[2][0] = t.a3; m.M[3][0] = t.a4 * 100.f;
+		m.M[0][1] = t.b1; m.M[1][1] = t.b2; m.M[2][1] = t.b3; m.M[3][1] = t.b4 * 100.f;//t.b4*100.f;
+		m.M[0][2] = t.c1; m.M[1][2] = t.c2; m.M[2][2] = t.c3; m.M[3][2] = t.c4 * 100.f;//t.c4*100.f;
+		m.M[0][3] = t.d1; m.M[1][3] = t.d2; m.M[2][3] = t.d3; m.M[3][3] = t.d4;
+
+		// rot
+		{
+			FTransform f;
+			if (bOffsetMode) {
+				//f.SetRotation(FRotator(0, 0, 180).Quaternion());
+				f.SetRotation(FRotator(0, 0, 90).Quaternion());
+			} else {
+				f.SetRotation(FRotator(0, 0, 90).Quaternion());
+			}
+
+			m = f.ToMatrixNoScale() * m * f.ToMatrixNoScale().Inverse();
+		}
+	}
+
+	if (VRMConverter::Options::Get().IsPMXModel() || VRMConverter::Options::Get().IsBVHModel()) {
+		m.M[3][0] *= -1.f;
+		m.M[3][1] *= -1.f;
+	}
+	{
+		m.M[3][0] *= VRMConverter::Options::Get().GetModelScale();
+		m.M[3][1] *= VRMConverter::Options::Get().GetModelScale();
+		m.M[3][2] *= VRMConverter::Options::Get().GetModelScale();
+		//m.M[3][3] *= VRMConverter::Options::Get().GetModelScale();
+	}
+	return m;
+}
+
+
+static bool hasMeshInChild(aiNode *node) {
+	if (node == nullptr) {
+		return false;
+	}
+	if (node->mNumMeshes > 0) {
+		return true;
+	}
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		bool b = hasMeshInChild(node->mChildren[i]);
+		if (b) {
+			return true;
+		}
+	}
+	return false;
+}
+
+
+static void rr3(const aiNode *node, TArray<const aiNode*> &t, bool &bHasMesh, const bool bOnlyRootBone) {
+	bHasMesh = false;
+	if (node == nullptr) {
+		return;
+	}
+	if (node->mNumMeshes > 0) {
+		bHasMesh = true;
+	}
+
+	t.Push(node);
+	for (uint32_t i = 0; i < node->mNumChildren; ++i) {
+		bool b = false;
+		rr3(node->mChildren[i], t, b, bOnlyRootBone);
+
+		if (b) {
+			bHasMesh = true;
+		}
+	}
+	if (bHasMesh==false && bOnlyRootBone) {
+		//t.Remove(node);
+	}
+}
+
+static void rr(const aiNode *node, TArray<const aiNode*> &t, bool &bHasMesh, const bool bOnlyRootBone, aiScene *scene) {
+
+	auto target = node;
+
+	if (bOnlyRootBone) {
+
+		int maxIndex = -1;
+		int maxChild = 0;
+
+		// find deep tree
+		for (uint32 i = 0; i < node->mNumChildren; ++i) {
+			int cc = countChild(node->mChildren[i], 0);
+
+			if (cc > maxChild) {
+				maxChild = cc;
+				maxIndex = i;
+			}
+
+		}
+
+		auto tableBone = makeActiveBone(scene);
+
+		for (uint32 i = 0; i < node->mNumChildren; ++i) {
+			if (i == maxIndex) {
+				continue;
+			}
+			if (findActiveBone(node->mChildren[i], tableBone)){
+				maxIndex = -1;
+				break;
+			}
+		}
+
+		if (maxIndex >= 0) {
+
+			const auto trans = node->mChildren[maxIndex]->mTransformation;
+			float f = 0.f;
+			f += FMath::Abs(trans.a4) + FMath::Abs(trans.b4) + FMath::Abs(trans.c4);
+			if (f < 1.e-8f) {
+				target = node->mChildren[maxIndex];
+			} else {
+				// root transform must zero.
+			}
+		}
+	}
+
+	rr3(target, t, bHasMesh, bOnlyRootBone);
+}
+
+/////////////////////////
+
+void VRMSkeleton::readVrmBone(aiScene* scene, int& boneOffset, FReferenceSkeleton &RefSkeleton, UVrmAssetListObject* vrmAssetList) {
+	boneOffset = 0;
+
+
+	FReferenceSkeletonModifier RefSkelModifier(RefSkeleton, nullptr);
+
+	{
+		FTransform t;
+		t.SetIdentity();
+
+		for (int i = 0; i < RefSkeleton.GetRawBoneNum(); ++i) {
+			RefSkelModifier.UpdateRefPoseTransform(i, t);
+		}
+	}
+
+
+	TArray<const aiNode*> nodeArray;
+	{
+		bool dummy = false;
+		bool bSimpleRootBone = false;
+		bSimpleRootBone = VRMConverter::Options::Get().IsSimpleRootBone();
+		rr(scene->mRootNode, nodeArray, dummy, bSimpleRootBone, scene);
+	}
+	{
+		// rename bone
+		TMap<FString, int> count;
+		for (int i = 0; i < nodeArray.Num(); ++i) {
+			auto& node = nodeArray[i];
+
+			FString str = UTF8_TO_TCHAR(node->mName.C_Str());
+			if (count.Contains(str)) {
+				count[str]++;
+			} else {
+				count.Add(str, 1);
+			}
+		}
+		for (int i = nodeArray.Num() - 1; i >= 0; --i) {
+			aiNode* node = const_cast<aiNode*>(nodeArray[i]);
+
+			FString str = UTF8_TO_TCHAR(node->mName.C_Str());
+			if (count.Contains(str) == false) continue;
+
+			auto c = count[str];
+			if (c >= 2) {
+				char tmp[512];
+				snprintf(tmp, 512, "%s_%02d", node->mName.C_Str(), c);
+
+				node->mName = tmp;
+				count[str]--;
+			}
+		}
+	}
+
+
+	TMap<const aiNode*, const aiBone*> aiBoneTable = makeAiBoneTable(scene, nodeArray);
+	//TMap<const aiNode*, const aiSkeletonBone*> aiBoneTable = makeAiSkeletonBoneTable(scene, nodeArray);
+
+	{
+		TArray<const aiBone*> v;
+		aiBoneTable.GenerateValueArray(v);
+
+		for (int i = 2; i < v.Num(); ++i) {
+			if (v[i - 1]->mArmature != v[i]->mArmature) {
+				// use armature
+				break;
+			}
+		}
+	}
+
+	{
+		int totalBoneCount = 0;
+
+		TArray<FTransform> poseGlobal_bindpose;	// bone
+		TArray<FTransform> poseGlobal_tpose;	// node
+		TArray<FTransform> poseGlobal_tpose_rootIdentity;	// node rootIdentity
+
+		TArray<FTransform> poseLocal_bindpose;				// bone
+		TArray<FTransform> poseLocal_tpose;					// node
+		TArray<FTransform> poseLocal_tpose_rootIdentity;	// node rootIdentity
+
+		FTransform tpose_root;
+
+		poseGlobal_bindpose.SetNum(nodeArray.Num());
+		poseGlobal_tpose.SetNum(nodeArray.Num());
+		poseGlobal_tpose_rootIdentity.SetNum(nodeArray.Num());
+
+		poseLocal_bindpose.SetNum(nodeArray.Num());
+		poseLocal_tpose.SetNum(nodeArray.Num());
+		poseLocal_tpose_rootIdentity.SetNum(nodeArray.Num());
+
+		// generate transform
+		{
+			// t-pose
+			for (int nodeNo = 0; nodeNo < nodeArray.Num(); ++nodeNo) {
+				auto node = nodeArray[nodeNo];
+				FString nodeName = UTF8_TO_TCHAR(node->mName.C_Str());
+
+				int32 ParentIndex = INDEX_NONE;
+				if (nodeArray.Find(node->mParent, ParentIndex) == false) {
+					ParentIndex = INDEX_NONE;
+				}
+
+				// t-pose (node pose)
+				{
+					FMatrix m = convertAiMatToFMatrix(node->mTransformation);
+
+					FTransform localpose;
+					localpose.SetFromMatrix(m);
+
+					FTransform localpose_Identity = localpose;
+
+					if (VRMConverter::Options::Get().IsRemoveRootBoneRotation()) {
+						// localpose correct
+						if (ParentIndex >= 0) {
+							localpose_Identity = tpose_root.Inverse() * localpose * tpose_root;
+						} else {
+							tpose_root = localpose;
+							localpose_Identity.SetIdentity();
+
+							if (VRMConverter::Options::Get().IsRemoveRootBonePosition() == false) {
+								localpose_Identity.SetTranslation(localpose.GetTranslation());
+							}
+						}
+					}// identity set
+
+					// pose
+					if (ParentIndex >= 0) {
+						poseGlobal_tpose[nodeNo]				= localpose * poseGlobal_tpose[ParentIndex];
+						poseGlobal_tpose_rootIdentity[nodeNo]	= localpose_Identity * poseGlobal_tpose_rootIdentity[ParentIndex];
+					} else {
+						poseGlobal_tpose[nodeNo] = localpose;
+						poseGlobal_tpose_rootIdentity[nodeNo] = localpose_Identity;
+					}
+					poseLocal_tpose[nodeNo] = localpose;
+					poseLocal_tpose_rootIdentity[nodeNo] = localpose_Identity;
+				}
+			}// tpose
+		}
+
+		for (int nodeNo = 0; nodeNo < nodeArray.Num(); ++nodeNo) {
+			auto node = nodeArray[nodeNo];
+			FString nodeName = UTF8_TO_TCHAR(node->mName.C_Str());
+
+			int32 ParentIndex = INDEX_NONE;
+			if (nodeArray.Find(node->mParent, ParentIndex) == false) {
+				ParentIndex = INDEX_NONE;
+			}
+
+			// bind-pose
+			{
+				auto pBone = aiBoneTable.Find(node);
+
+				if (pBone == nullptr) {
+					// generate from tpose matrix
+					if (ParentIndex == INDEX_NONE) {
+						poseLocal_bindpose[nodeNo] = poseLocal_tpose_rootIdentity[nodeNo];
+						poseGlobal_bindpose[nodeNo] = poseLocal_bindpose[nodeNo];
+					} else {
+						poseLocal_bindpose[nodeNo] = poseLocal_tpose_rootIdentity[nodeNo];
+						poseGlobal_bindpose[nodeNo] = poseLocal_bindpose[nodeNo] * poseGlobal_bindpose[ParentIndex];
+					}
+				}else{
+					auto bone = *pBone;
+
+					FMatrix m = convertAiMatToFMatrix(bone->mOffsetMatrix, true);
+					if (ParentIndex == INDEX_NONE) {
+					} else {
+					}
+
+
+					FTransform globalpose;
+					globalpose.SetFromMatrix(m.Inverse());
+
+					poseGlobal_bindpose[nodeNo] = globalpose;
+
+					if (ParentIndex == INDEX_NONE) {
+						poseLocal_bindpose[nodeNo] = globalpose;
+					}else{
+						poseLocal_bindpose[nodeNo] = globalpose * poseGlobal_bindpose[ParentIndex].Inverse();
+					}
+				}
+			}
+		} // bind pose
+
+
+		for (int nodeNo = 0; nodeNo < nodeArray.Num(); ++nodeNo) {
+			auto node = nodeArray[nodeNo];
+			FMeshBoneInfo info;
+			info.Name = UTF8_TO_TCHAR(node->mName.C_Str());
+#if WITH_EDITORONLY_DATA
+			info.ExportName = UTF8_TO_TCHAR(node->mName.C_Str());
+#endif
+
+			int32 ParentIndexByNode = INDEX_NONE;
+			if (nodeArray.Find(node->mParent, ParentIndexByNode) == false) {
+				ParentIndexByNode = INDEX_NONE;
+
+				if (VRMConverter::Options::Get().IsBVHModel()) {
+					// ダミーのRoot骨を追加する。BVHはRoot骨にTransが入っていることがある。
+					// Transがあると、リターゲットがうまくできない
+					FMeshBoneInfo inf;
+					inf.Name = TEXT("root_dummy");
+					inf.ParentIndex = INDEX_NONE;
+					RefSkelModifier.Add(inf, FTransform());
+				}
+			}
+			if (VRMConverter::Options::Get().IsBVHModel()) {
+				info.ParentIndex = ParentIndexByNode + 1;
+			} else {
+				info.ParentIndex = ParentIndexByNode;
+			}
+
+			FMatrix m = convertAiMatToFMatrix(node->mTransformation);
+
+			FTransform pose;
+			
+			if (VRMConverter::Options::Get().IsVRM10Bindpose()) {
+				pose = poseLocal_bindpose[nodeNo];
+			}else{
+				pose = poseLocal_tpose_rootIdentity[nodeNo];
+			}
+			// remove local axis
+			if (VRMConverter::Options::Get().IsVRM10Model()) {
+				if (VRMConverter::Options::Get().IsVRM10RemoveLocalRotation()) {
+
+					if (vrmAssetList){
+						if (vrmAssetList->VrmMetaObject) {
+							TArray<FString> v;
+							vrmAssetList->VrmMetaObject->humanoidBoneTable.GenerateValueArray(v);
+							//if (v.Find(info.Name.ToString()) != INDEX_NONE) {
+								pose.SetRotation(FQuat::Identity);
+								if (ParentIndexByNode >= 0) {
+									if (VRMConverter::Options::Get().IsVRM10Bindpose()) {
+										pose.SetTranslation(poseGlobal_bindpose[nodeNo].GetLocation() - poseGlobal_bindpose[ParentIndexByNode].GetLocation());
+									} else {
+										pose.SetTranslation(poseGlobal_tpose[nodeNo].GetLocation() - poseGlobal_tpose[ParentIndexByNode].GetLocation());
+									}
+								}
+							//}
+						}
+					}
+
+				}
+			}
+
+			// bone name check
+			{
+				auto baseName = info.Name.ToString();
+				for (int c = 0; c < 100; ++c) {
+					if (RefSkeleton.FindRawBoneIndex(info.Name) == INDEX_NONE) {
+						break;
+					}
+					info.Name = *FString::Printf(TEXT("%s_vrm4u%02d"), *baseName, c);
+				}
+			}
+			if (totalBoneCount > 0 && ParentIndexByNode == INDEX_NONE) {
+				// bad bone. root?
+				continue;
+			}
+			if (VRMConverter::Options::Get().IsVRMAModel()) {
+				if (vrmAssetList->VrmMetaObject) {
+					for (auto& t : vrmAssetList->VrmMetaObject->humanoidBoneTable) {
+
+						if (t.Value == info.Name.ToString()) {
+							info.Name = *t.Key;
+							break;
+						}
+					}
+				}
+			}
+
+			RefSkelModifier.Add(info, pose);
+			totalBoneCount++;
+
+			if (vrmAssetList) {
+				vrmAssetList->Pose_bind.Add(UTF8_TO_TCHAR(node->mName.C_Str()), poseGlobal_bindpose[nodeNo]);
+				vrmAssetList->Pose_tpose.Add(UTF8_TO_TCHAR(node->mName.C_Str()), poseGlobal_tpose[nodeNo]);
+				vrmAssetList->model_root_transform = tpose_root;
+			}
+
+			if (totalBoneCount == 1) {
+				if (VRMConverter::Options::Get().IsDebugOneBone()) {
+					// root only
+					break;
+				}
+			}
+		}
+	}
+}
+
+
+void VRMSkeleton::addIKBone(UVrmAssetListObject* vrmAssetList, USkeletalMesh *sk) {
+
+	if (VRMConverter::Options::Get().IsGenerateIKBone() == false) {
+		return;
+	}
+
+	// refskeleton
+	auto& BonePose = VRMGetRefSkeleton(sk).GetRefBonePose();
+	FReferenceSkeletonModifier RefSkelModifier(VRMGetRefSkeleton(sk), VRMGetSkeleton(sk));
+
+	{
+		FString BoneCheckList[] = {
+			TEXT("ik_foot_l"),
+			TEXT("ik_foot_r"),
+			TEXT("ik_hand_l"),
+			TEXT("ik_hand_r"),
+			TEXT("ik_hand_root"),
+			TEXT("ik_foot_root"),
+			TEXT("ik_hand_gun"),
+		};
+		for (auto& s : BoneCheckList) {
+			if (RefSkelModifier.FindBoneIndex(*s) != INDEX_NONE) {
+				return;
+			}
+		}
+	}
+
+	FTransform trans;
+	FMeshBoneInfo info;
+	info.ParentIndex = 0;
+
+	info.Name = TEXT("ik_foot_root");
+	RefSkelModifier.Add(info, trans);
+
+	info.Name = TEXT("ik_hand_root");
+	RefSkelModifier.Add(info, trans);
+
+	// rebuild tmp
+	VRMGetRefSkeleton(sk).RebuildRefSkeleton(VRMGetSkeleton(sk), true);
+	{
+		info.ParentIndex = RefSkelModifier.FindBoneIndex(TEXT("ik_foot_root"));
+		info.Name = ("ik_foot_l");
+		RefSkelModifier.Add(info, trans);
+		info.Name = ("ik_foot_r");
+		RefSkelModifier.Add(info, trans);
+
+		info.ParentIndex = RefSkelModifier.FindBoneIndex(TEXT("ik_hand_root"));
+		info.Name = ("ik_hand_gun");
+		RefSkelModifier.Add(info, trans);
+	}
+	// rebuild tmp
+	VRMGetRefSkeleton(sk).RebuildRefSkeleton(VRMGetSkeleton(sk), true);
+	{
+
+		info.ParentIndex = RefSkelModifier.FindBoneIndex(TEXT("ik_hand_gun"));
+		info.Name = ("ik_hand_l");
+		RefSkelModifier.Add(info, trans);
+		info.Name = ("ik_hand_r");
+		RefSkelModifier.Add(info, trans);
+
+	}
+	// rebuild tmp
+	VRMGetRefSkeleton(sk).RebuildRefSkeleton(VRMGetSkeleton(sk), true);
+
+	{
+		FString orgBone[4];
+		FString newBone[4] = {
+			TEXT("ik_foot_l"),
+			TEXT("ik_foot_r"),
+			TEXT("ik_hand_l"),
+			TEXT("ik_hand_r"),
+		};
+		FString parentBone[4] = {
+			TEXT("ik_foot_root"),
+			TEXT("ik_foot_root"),
+			TEXT("ik_hand_gun"),
+			TEXT("ik_hand_gun"),
+		};
+		{
+			FString ue4bone[4] = {
+				TEXT("foot_l"),
+				TEXT("foot_r"),
+				TEXT("hand_l"),
+				TEXT("hand_r"),
+			};
+			for (int i = 0; i < 4; ++i) {
+				FString humanoid;
+				for (auto& t : VRMUtil::table_ue4_vrm) {
+					if (t.BoneUE4 == ue4bone[i]) {
+						humanoid = t.BoneVRM;
+						break;
+					}
+				}
+				for (auto& t : vrmAssetList->VrmMetaObject->humanoidBoneTable) {
+					if (t.Key == humanoid) {
+						orgBone[i] = t.Value;
+						break;
+					}
+				}
+			}
+		}
+
+		// gun only
+		FTransform gun_trans;
+		{
+			{
+				const int i = 3;
+
+				int32 ind = 0;
+				ind = VRMGetRefSkeleton(sk).FindBoneIndex(*orgBone[i]);
+				if (ind >= 0) {
+					FTransform a;
+					while (ind >= 0) {
+						a *= BonePose[ind];
+						ind = VRMGetRefSkeleton(sk).GetParentIndex(ind);
+					}
+
+					gun_trans = a;
+					RefSkelModifier.UpdateRefPoseTransform(RefSkelModifier.FindBoneIndex(TEXT("ik_hand_gun")), a);
+				}
+			}
+			// rebuild tmp
+			VRMGetRefSkeleton(sk).RebuildRefSkeleton(VRMGetSkeleton(sk), true);
+		}
+		for (int i = 0; i < 4; ++i) {
+			int32 ind = 0;
+			ind = RefSkelModifier.FindBoneIndex(*orgBone[i]);
+			if (ind >= 0) {
+				bool first = true;
+				FTransform a;
+				while (ind >= 0) {
+					a *= BonePose[ind];
+					ind = VRMGetRefSkeleton(sk).GetParentIndex(ind);
+				}
+				if (i >= 2) {
+					a = gun_trans.Inverse() * a;
+				}
+				RefSkelModifier.UpdateRefPoseTransform(RefSkelModifier.FindBoneIndex(*newBone[i]), a);
+			}
+		}
+	}
+}
+

Plugins/VRM4U/Source/VRM4ULoader/Public/LoaderBPFunctionLibrary.h

@@ -0,0 +1,129 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+#include "Engine/LatentActionManager.h"
+#include "Kismet/BlueprintFunctionLibrary.h"
+#include "VrmConvert.h"
+#include "VrmUtil.h"
+#include "LoaderBPFunctionLibrary.generated.h"
+
+UENUM(BlueprintType)
+enum class EPathType : uint8
+{
+	Absolute,
+	Relative
+};
+
+
+USTRUCT(BlueprintType)
+struct FMeshInfo_VRM4U
+{
+	GENERATED_USTRUCT_BODY()
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<FVector> Vertices;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<FVector> Normals;
+
+	//UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<uint32> Triangles;
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<int32> Triangles2;
+
+
+//	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+	TArray< TArray<FVector2D> > UV0;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<FLinearColor> VertexColors;
+
+//	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+//		TArray<FProcMeshTangent> MeshTangents;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<FVector> Tangents;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		FTransform RelativeTransform;
+
+	TArray<bool> vertexUseFlag;
+	TArray<uint32_t> vertexIndexOptTable;
+	uint32_t useVertexCount = 0;
+};
+
+USTRUCT(BlueprintType)
+struct FReturnedData
+{
+	GENERATED_USTRUCT_BODY()
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		bool bSuccess = false;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		int32 NumMeshes = 0;
+
+	UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+		TArray<FMeshInfo_VRM4U> meshInfo;
+
+	//UPROPERTY(BlueprintReadWrite, EditAnywhere, Category = "ReturnedData")
+	//TMap<struct aiMesh*, uint32_t> meshToIndex;
+};
+
+
+
+
+/**
+ * 
+ */
+UCLASS()
+class VRM4ULOADER_API ULoaderBPFunctionLibrary : public UBlueprintFunctionLibrary
+{
+	GENERATED_BODY()
+	
+public:
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U")
+	static bool VRMSetLoadMaterialType(EVRMImportMaterialType type);
+
+	UFUNCTION(BlueprintCallable,Category="VRM4U", meta = (DynamicOutputParam = "OutVrmAsset"))
+	static bool LoadVRMFile(const class UVrmAssetListObject *InVrmAsset, class UVrmAssetListObject *&OutVrmAsset, const FString filepath, const FImportOptionData &OptionForRuntimeLoad);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U", meta = (Latent, DynamicOutputParam = "OutVrmAsset", WorldContext = "WorldContextObject", LatentInfo = "LatentInfo"))
+	static void LoadVRMFileAsync(const UObject* WorldContextObject, const class UVrmAssetListObject* InVrmAsset, class UVrmAssetListObject*& OutVrmAsset, const FString filepath, const FImportOptionData& OptionForRuntimeLoad, struct FLatentActionInfo LatentInfo);
+
+
+	static bool LoadVRMFileLocal(const class UVrmAssetListObject* InVrmAsset, class UVrmAssetListObject*& OutVrmAsset, const FString filepath);
+
+	static bool LoadVRMFileFromMemoryDefaultOption(UVrmAssetListObject*& OutVrmAsset, const FString filepath, const uint8* pData, size_t dataSize);
+	static bool LoadVRMFileFromMemory(const UVrmAssetListObject* InVrmAsset, UVrmAssetListObject*& OutVrmAsset, const FString filepath, const uint8* pFileData, size_t dataSize);
+
+	static void SetImportMode(bool bImportMode, class UPackage *package);
+
+	//static void SetCopySkeletalMeshAnimation(bool bImportMode, class UPackage *package);
+
+	///
+	UFUNCTION(BlueprintCallable,Category="VRM4U")
+	static bool VRMReTransformHumanoidBone(class USkeletalMeshComponent *targetHumanoidSkeleton, const class UVrmMetaObject *meta, const class USkeletalMeshComponent *displaySkeleton);
+
+	//static void ReTransformHumanoidBone(USkeleton *targetHumanoidSkeleton, const UVrmMetaObject *meta, const USkeleton *displaySkeleton) {
+
+	///
+	UFUNCTION(BlueprintCallable, Category = "VRM4U")
+	static bool CopyPhysicsAsset(USkeletalMesh *dstMesh, const USkeletalMesh *srcMesh, bool bResetCollisionTransform=true);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U")
+	static bool CopyVirtualBone(USkeletalMesh *dstMesh, const USkeletalMesh *srcMesh);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U")
+	static bool CreateTailBone(USkeletalMesh *skeletalMesh, const TArray<FString> &boneName);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U", meta = (DynamicOutputParam = "RigIK"))
+	static void VRMGenerateEpicSkeletonToHumanoidIKRig(USkeletalMesh* srcSkeletalMesh, UObject*& outRigIK, UObject*& outIKRetargeter, UObject* targetRigIK);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U", meta = (DynamicOutputParam = "RigIK"))
+	static void VRMGenerateIKRetargeterPose(UObject * IKRetargeter, UObject* targetRigIK, UPoseAsset* targetPose);
+
+	static bool IsValidVRM4UFile(FString filepath);
+	static void GetVRMMeta(FString filepath, UVrmLicenseObject*& a, UVrm1LicenseObject*& b);
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvert.h

@@ -0,0 +1,273 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/ObjectMacros.h"
+#include "UObject/Object.h"
+#include "Misc/EngineVersionComparison.h"
+#include "Engine/SkeletalMesh.h"
+
+#if UE_VERSION_OLDER_THAN(5,4,0)
+#else
+#include "Misc/FieldAccessor.h"
+#endif
+
+#include "VrmUtil.h"
+#include "VrmJson.h"
+
+#include <assimp/Importer.hpp>
+#include <assimp/scene.h>
+#include <assimp/mesh.h>
+#include <assimp/postprocess.h>
+#include <assimp/material.h>
+#include <assimp/GltfMaterial.h>
+#include <assimp/vrm/vrmmeta.h>
+
+//#include "VrmConvert.generated.h"
+
+/**
+ * 
+ */
+
+struct aiScene;
+class UTexture2D;
+class UMaterialInterface;
+class USkeletalMesh;
+class UVrmAssetListObject;
+class UVrmLicenseObject;
+class UVrm1LicenseObject;
+class UPackage;
+
+
+class VRM4ULOADER_API VRMConverter {
+
+	bool InitJSON(const uint8* pData, size_t pFileDataSize);
+
+public:
+
+	VrmJson jsonData;
+	const aiScene* aiData = nullptr;
+
+	char* GetMatName(int matNo) const;
+	char* GetMatShaderName(int matNo) const;
+	int GetMatNum() const;
+	int GetMatCullMode(int matNo) const;
+	int GetMatZWrite(int matNo) const;
+
+	int GetThumbnailTextureIndex() const;
+
+	bool GetMatParam(VRM::VRMMaterial &m, int matNo) const;
+
+
+	static bool IsImportMode();
+	static void SetImportMode(bool bImportMode);
+	static FString NormalizeFileName(const char *str);
+	static FString NormalizeFileName(const FString &str);
+
+	static bool NormalizeBoneName(const aiScene *mScenePtr);
+
+	bool Init(const uint8* pFileData, size_t dataSize, const aiScene*);
+	bool ValidateSchema();
+
+	bool ConvertTextureAndMaterial(UVrmAssetListObject *vrmAssetList);
+	bool ConvertModel(UVrmAssetListObject *vrmAssetList);
+	bool ConvertMorphTarget(UVrmAssetListObject *vrmAssetList);
+
+	void GetVRMMeta(const aiScene *mScenePtr, UVrmLicenseObject *& a, UVrm1LicenseObject *& b);
+	bool ConvertVrmFirst(UVrmAssetListObject* vrmAssetList, const uint8* pData, size_t dataSize);
+	bool ConvertVrmMeta(UVrmAssetListObject *vrmAssetList, const aiScene *mScenePtr, const uint8* pData, size_t dataSize);
+	bool ConvertVrmMetaPost(UVrmAssetListObject* vrmAssetList, const aiScene* mScenePtr, const uint8* pData, size_t dataSize);
+
+	bool ConvertHumanoid(UVrmAssetListObject *vrmAssetList);
+	bool ConvertRig(UVrmAssetListObject *vrmAssetList);
+	bool ConvertIKRig(UVrmAssetListObject* vrmAssetList);
+	bool ConvertPose(UVrmAssetListObject* vrmAssetList);
+
+	UPackage *CreatePackageFromImportMode(UPackage *p, const FString &name);
+
+	class VRM4ULOADER_API Options {
+	public:
+		static Options & Get();
+
+		const FImportOptionData *ImportOption = nullptr;
+		void SetVrmOption(const FImportOptionData *p) {
+			ImportOption = p;
+		}
+
+		class USkeleton *GetSkeleton();
+		bool IsSimpleRootBone() const;
+
+		bool IsActiveBone() const;
+
+		bool IsSkipPhysics() const;
+		bool IsSkipRetargeter() const;
+
+		bool IsSkipNoMeshBone() const;
+
+		bool IsSkipMorphTarget() const;
+
+		bool IsEnableMorphTargetNormal() const;
+
+		bool IsForceOriginalMorphTargetName() const;
+
+		bool IsRemoveBlendShapeGroupPrefix() const;
+
+		bool IsRemoveRootBoneRotation() const;
+		bool IsRemoveRootBonePosition() const;
+
+		bool IsVRM10RemoveLocalRotation() const;
+		bool IsVRM10BindToRestPose() const;
+
+		bool IsVRM10Bindpose() const;
+
+		bool IsForceOriginalBoneName() const;
+		bool IsGenerateHumanoidRenamedMesh() const;
+
+		bool IsGenerateIKBone() const;
+		bool IsGenerateRigIK() const;
+
+		bool IsDebugIgnoreVRMValidation() const;
+		bool IsDebugOneBone() const;
+		bool IsDebugNoMesh() const;
+		bool IsDebugNoMaterial() const;
+
+		bool IsMobileBone() const;
+
+		int GetBoneWeightInfluenceNum() const;
+
+		bool IsForceOpaque() const;
+		bool IsForceTwoSided() const;
+
+		bool IsSingleUAssetFile() const;
+
+		bool IsDefaultGridTextureMode() const;
+		bool IsBC7Mode() const;
+		bool IsMipmapGenerateMode() const;
+
+		bool IsGenerateOutlineMaterial() const;
+		bool IsMergeMaterial() const;
+
+		bool IsMergePrimitive() const;
+
+		bool IsOptimizeMaterial() const;
+
+		bool IsOptimizeVertex() const;
+
+		bool IsRemoveDegenerateTriangles() const;
+
+		void ClearModelType();
+
+		bool IsUE5Material() const;
+
+		bool IsVRMModel() const;
+		bool IsVRM0Model() const;
+		bool IsVRM10Model() const;
+
+		void SetVRM0Model(bool bVRM);
+		void SetVRM10Model(bool bVRM);
+
+		bool IsVRMAModel() const;
+		void SetVRMAModel(bool bVRMA);
+
+		bool IsBVHModel() const;
+		void SetBVHModel(bool bBVH);
+
+		bool IsPMXModel() const;
+		void SetPMXModel(bool bPMX);
+
+		bool IsNoMesh() const;
+		void SetNoMesh(bool bNoMesh);
+
+		bool IsForceOverride() const;
+		float GetModelScale() const;
+
+		float GetAnimationTranslateScale() const;
+
+		float GetAnimationPlayRateScale() const;
+
+		bool IsAPoseRetarget() const;
+
+		EVRMImportMaterialType GetMaterialType() const;
+		void SetMaterialType(EVRMImportMaterialType type);
+	};
+};
+
+class VRM4ULOADER_API VRMLoaderUtil {
+public:
+	static UTexture2D* CreateTexture(int32 InSizeX, int32 InSizeY, FString name, UPackage* package);
+	static UTexture2D* CreateTextureFromImage(FString name, UPackage* package, const void* Buffer, const size_t Length, bool GenerateMip = false, bool bNormal = false, bool bNormalGreenFlip = false);
+
+	static bool LoadImageFromMemory(const void* Buffer, const size_t Length, VRMUtil::FImportImage& OutImage);
+};
+
+
+class VRM4ULOADER_API VrmConvert {
+public:
+	VrmConvert();
+	~VrmConvert();
+};
+
+extern FString VRM4U_GetPackagePath(UPackage* Outer);
+extern UPackage* VRM4U_CreatePackage(UPackage* Outer, FName Name);
+
+template< class T >
+T* VRM4U_NewObject(UObject* Outer, FName Name, EObjectFlags Flags = RF_NoFlags, UObject* Template = nullptr, bool bCopyTransientsFromClassDefaults = false, FObjectInstancingGraph* InInstanceGraph = nullptr) {
+	UPackage* pkg = Cast<UPackage>(Outer);
+	if (VRMConverter::Options::Get().IsSingleUAssetFile() == false) {
+		pkg = VRM4U_CreatePackage(pkg, Name);
+	}
+	decltype(auto) r = NewObject<T>(pkg, Name, Flags, Template, bCopyTransientsFromClassDefaults, InInstanceGraph);
+	r->MarkPackageDirty();
+	return r;
+}
+
+template< class T >
+T* VRM4U_NewObject(UObject* Outer, UClass* Class, FName Name, EObjectFlags Flags = RF_NoFlags, UObject* Template = nullptr, bool bCopyTransientsFromClassDefaults = false, FObjectInstancingGraph* InInstanceGraph = nullptr) {
+	UPackage* pkg = Cast<UPackage>(Outer);
+	if (VRMConverter::Options::Get().IsSingleUAssetFile() == false) {
+		pkg = VRM4U_CreatePackage(pkg, Name);
+	}
+	decltype(auto) r = NewObject<T>(pkg, Class, Name, Flags, Template, bCopyTransientsFromClassDefaults, InInstanceGraph);
+	r->MarkPackageDirty();
+	return r;
+}
+
+template< class T >
+T* VRM4U_DuplicateObject(const T *src, UPackage* Outer, FName Name) {
+	UPackage* pkg = Outer;
+	if (VRMConverter::Options::Get().IsSingleUAssetFile() == false) {
+		pkg = VRM4U_CreatePackage(Outer, Name);
+	}
+	decltype(auto) r = DuplicateObject<T>(src, pkg, Name);
+	r->MarkPackageDirty();
+	return r;
+}
+
+#if	UE_VERSION_OLDER_THAN(5,4,0)
+extern UObject* VRM4U_StaticDuplicateObject(UObject const* SourceObject, UObject* DestOuter, const FName DestName = NAME_None, EObjectFlags FlagMask = RF_AllFlags, UClass* DestClass = nullptr, EDuplicateMode::Type DuplicateMode = EDuplicateMode::Normal, EInternalObjectFlags InternalFlagsMask = EInternalObjectFlags::AllFlags);
+#else
+extern UObject* VRM4U_StaticDuplicateObject(UObject const* SourceObject, UObject* DestOuter, const FName DestName = NAME_None, EObjectFlags FlagMask = RF_AllFlags, UClass* DestClass = nullptr, EDuplicateMode::Type DuplicateMode = EDuplicateMode::Normal, EInternalObjectFlags InternalFlagsMask = EInternalObjectFlags_AllFlags);
+#endif
+
+
+#if	UE_VERSION_OLDER_THAN(5,0,0)
+template<typename T>
+FTexturePlatformData* GetPlatformData(T* t) {
+	return t->PlatformData;
+}
+template<typename T, typename U>
+void SetPlatformData(T* t, U* u) {
+	t->PlatformData = u;
+}
+#else
+template<typename T>
+TFieldPtrAccessor<FTexturePlatformData> GetPlatformData(T* t) {
+	return t->GetPlatformData();
+}
+template<typename T, typename U>
+void SetPlatformData(T* t, U* u) {
+	t->SetPlatformData(u);
+}
+#endif
+

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertHumanoid.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertHumanoid
+{
+public:
+	VrmConvertHumanoid();
+	~VrmConvertHumanoid();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertIKRig.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertIKRig
+{
+public:
+	VrmConvertIKRig();
+	~VrmConvertIKRig();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertMetadata.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertMetadata
+{
+public:
+	VrmConvertMetadata();
+	~VrmConvertMetadata();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertModel.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertModel
+{
+public:
+	VrmConvertModel();
+	~VrmConvertModel();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertMorphTarget.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertMorphTarget
+{
+public:
+	VrmConvertMorphTarget();
+	~VrmConvertMorphTarget();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertRig.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertRig
+{
+public:
+	VrmConvertRig();
+	~VrmConvertRig();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmConvertTexture.h

@@ -0,0 +1,15 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+
+/**
+ * 
+ */
+class VRM4ULOADER_API VrmConvertTexture
+{
+public:
+	VrmConvertTexture();
+	~VrmConvertTexture();
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmJson.h

@@ -0,0 +1,22 @@
+#pragma once
+
+#define RAPIDJSON_NAMESPACE vrm4u::local::rapid_json
+#define RAPIDJSON_NAMESPACE_BEGIN namespace vrm4u { namespace local { namespace rapid_json {
+#define RAPIDJSON_NAMESPACE_END } } }
+
+#include <vector>
+#include "rapidjson/document.h"
+
+class VrmJson {
+
+	bool bEnable = false;
+public:
+	RAPIDJSON_NAMESPACE::Document doc;
+
+	bool validateSchema();
+	bool init(const uint8_t* pData, size_t size);
+	
+	bool IsEnable() const{
+		return bEnable;
+	}
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmLoaderComponent.h

@@ -0,0 +1,87 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+// ApplicationLifecycleComponent.:  See FCoreDelegates for details
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "UObject/ObjectMacros.h"
+#include "Components/ActorComponent.h"
+#include "Misc/CoreDelegates.h"
+#include "VrmLoaderComponent.generated.h"
+
+// A parallel enum to the temperature change severity enum in CoreDelegates
+// Note if you change this, then you must change the one in CoreDelegates
+/*
+UENUM(BlueprintType)
+enum class ETemperatureSeverityType : uint8
+{
+	Unknown,
+	Good,
+	Bad,
+	Serious,
+	Critical,
+
+	NumSeverities,
+};
+*/
+//static_assert((int)ETemperatureSeverityType::NumSeverities == (int)FCoreDelegates::ETemperatureSeverity::NumSeverities, "TemperatureSeverity enums are out of sync");
+
+class UVrmAssetListObject;
+
+/** Component to handle receiving notifications from the OS about application state (activated, suspended, termination, etc). */
+UCLASS(ClassGroup=Utility, HideCategories=(Activation, "Components|Activation", Collision), meta=(BlueprintSpawnableComponent))
+class VRM4ULOADER_API UVrmLoaderComponent : public UActorComponent
+{
+	GENERATED_UCLASS_BODY()
+
+	//DECLARE_DYNAMIC_MULTICAST_DELEGATE(FApplicationLifetimeDelegate);
+	//DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnTemperatureChangeDelegate , ETemperatureSeverityType, Severity);
+	//DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnLowPowerModeDelegate, bool, bInLowPowerMode);
+
+	//DECLARE_MULTICAST_DELEGATE_OneParam(FStaticOnDropFiles, FString);
+	//static FStaticOnDropFiles	StaticOnDropFilesDelegate;
+
+	DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FOnFinishLoad, UVrmAssetListObject*, AssetList);
+
+	UPROPERTY(BlueprintAssignable)
+	FOnFinishLoad	OnFinishLoad;
+
+	UPROPERTY()
+	UVrmAssetListObject *AssetList = nullptr;
+	mutable bool bResultQueue = false;
+
+public:
+	void OnRegister() override;
+	void OnUnregister() override;
+
+	//static const UVrmDropFilesComponent* getLatestActiveComponent() {
+		//return s_LatestActiveComponent;
+	//};
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U", meta = (DynamicOutputParam = "OutVrmAsset"))
+	bool LoadVRMFile(const UVrmAssetListObject *InVrmAsset, UVrmAssetListObject *&OutVrmAsset, FString filepath);
+
+	UFUNCTION(BlueprintCallable, Category = "VRM4U", meta = (DynamicOutputParam = "OutVrmAsset"))
+	bool LoadVRMFileAsync(const UVrmAssetListObject *InVrmAsset, FString filepath);
+
+	virtual void TickComponent(float DeltaTime, enum ELevelTick TickType, FActorComponentTickFunction *ThisTickFunction) override;
+
+
+private:
+	/** Native handlers that get registered with the actual FCoreDelegates, and then proceed to broadcast to the delegates above */
+	/*
+	void ApplicationWillDeactivateDelegate_Handler() { ApplicationWillDeactivateDelegate.Broadcast(); }
+	void ApplicationHasReactivatedDelegate_Handler() { ApplicationHasReactivatedDelegate.Broadcast(); }
+	void ApplicationWillEnterBackgroundDelegate_Handler() { ApplicationWillEnterBackgroundDelegate.Broadcast(); }
+	void ApplicationHasEnteredForegroundDelegate_Handler() { ApplicationHasEnteredForegroundDelegate.Broadcast(); }
+	void ApplicationWillTerminateDelegate_Handler() { ApplicationWillTerminateDelegate.Broadcast(); }
+	void ApplicationShouldUnloadResourcesDelegate_Handler() { ApplicationShouldUnloadResourcesDelegate.Broadcast(); }
+	void ApplicationReceivedStartupArgumentsDelegate_Handler(const TArray<FString>& StartupArguments) { ApplicationReceivedStartupArgumentsDelegate.Broadcast(StartupArguments); }
+	void OnTemperatureChangeDelegate_Handler(FCoreDelegates::ETemperatureSeverity Severity) { OnTemperatureChangeDelegate.Broadcast((ETemperatureSeverityType)Severity); }
+	void OnLowPowerModeDelegate_Handler(bool bInLowerPowerMode) { OnLowPowerModeDelegate.Broadcast(bInLowerPowerMode); }
+	*/
+	//void OnDropFilesDelegate_Handler(FString FileName) { OnDropFiles.Broadcast(FileName); }
+};
+
+
+

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmSkeletalMesh.h

@@ -0,0 +1,23 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Engine/SkeletalMesh.h"
+#include "VrmSkeletalMesh.generated.h"
+
+/**
+ * 
+ */
+UCLASS()
+class VRM4ULOADER_API UVrmSkeletalMesh : public USkeletalMesh
+{
+	GENERATED_BODY()
+	
+
+public:
+	void Proc();
+
+	
+	
+};

Plugins/VRM4U/Source/VRM4ULoader/Public/VrmSkeleton.h

@@ -0,0 +1,18 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Animation/Skeleton.h"
+#include "Misc/EngineVersionComparison.h"
+//#include "VrmSkeleton.generated.h"
+
+class USkeletalMesh;
+class UVrmAssetListObject;
+
+class VRM4ULOADER_API VRMSkeleton {
+public:
+	static void readVrmBone(struct aiScene* scene, int& boneOffset, FReferenceSkeleton& RefSkeleton, UVrmAssetListObject* assetList);
+
+	static void addIKBone(class UVrmAssetListObject* vrmAssetList, USkeletalMesh* sk);
+};

Plugins/VRM4U/Source/VRM4ULoader/VRM4ULoader.Build.cs

@@ -0,0 +1,146 @@
+// VRM4U Copyright (c) 2021-2024 Haruyoshi Yamamoto. This software is released under the MIT License.
+
+using UnrealBuildTool;
+using System.IO;
+
+
+public class VRM4ULoader : ModuleRules
+{
+    private string ModulePath
+    {
+        get { return ModuleDirectory; }
+    }
+
+    private string ThirdPartyPath
+    {
+        get { return Path.GetFullPath(Path.Combine(ModulePath, "../../ThirdParty/")); }
+    }
+
+	public VRM4ULoader(ReadOnlyTargetRules Target) : base(Target)
+	{
+		PCHUsage = ModuleRules.PCHUsageMode.UseExplicitOrSharedPCHs;
+
+		// for thirdparty header
+		//bUseUnityBuild = false;
+
+		PublicIncludePaths.AddRange(
+			new string[] {
+				Path.Combine(ThirdPartyPath, "assimp/include"),
+				Path.Combine(ThirdPartyPath, "rapidjson/include")
+                // ... add public include paths required here ...
+            }
+		);
+
+		PrivateDependencyModuleNames.AddRange(
+			new string[] {
+				"Slate",
+				"SlateCore",
+				"Core",
+				"CoreUObject",
+				"Engine",
+				"RHI",
+				"RenderCore",
+				"CinematicCamera",
+				"AnimGraphRuntime",
+				"Projects",
+				"VRM4U",
+			});
+		PrivateDependencyModuleNames.Add("TimeManagement");
+
+		if (Target.bBuildEditor) {
+			PrivateDependencyModuleNames.Add("Persona");
+		}
+
+		BuildVersion Version;
+		if (BuildVersion.TryRead(BuildVersion.GetDefaultFileName(), out Version))
+		{
+			//if (Version.MajorVersion == X && Version.MinorVersion == Y)
+			if (Version.MajorVersion == 5)
+			{
+				PrivateDependencyModuleNames.Add("IKRig");
+				if (Target.bBuildEditor)
+				{
+					PrivateDependencyModuleNames.Add("IKRigEditor");
+				}
+			}
+		}
+		
+		DynamicallyLoadedModuleNames.AddRange(
+			new string[]
+			{
+			}
+			);
+
+		RuntimeDependencies.Add(Path.Combine(ThirdPartyPath, "vrm_specification", "vrm0", "schema", "*"));
+		RuntimeDependencies.Add(Path.Combine(ThirdPartyPath, "vrm_specification", "vrm1", "*", "schema", "*"));
+
+		if (Target.bBuildEditor == true)
+		{
+			PrivateDependencyModuleNames.Add("UnrealEd");
+			//PrivateDependencyModuleNames.Add("VRM4UImporter");
+			//PrivateIncludePaths.Add("VRM4UImporter/Private");
+
+			//CircularlyReferencedDependentModules.Add("VRM4UImporter");
+		}
+
+		if ((Target.Platform == UnrealTargetPlatform.Win64))
+		{
+			string PlatformString = (Target.Platform == UnrealTargetPlatform.Win64) ? "x64" : "x86";
+
+			bool bDebug = false;
+
+			if (bDebug){
+				PublicDefinitions.Add("WITH_VRM4U_ASSIMP_DEBUG=1");
+
+				string BuildString = (Target.Configuration != UnrealTargetConfiguration.Debug) ? "Debug" : "Debug";
+				PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp", "lib", PlatformString, BuildString, "assimp-vc141-mtd.lib"));
+
+				PublicDelayLoadDLLs.Add("assimp-vc141-mtd.dll");
+				RuntimeDependencies.Add(Path.Combine(ThirdPartyPath, "assimp", "bin", PlatformString, "assimp-vc141-mtd.dll"));
+			}
+			else
+			{
+				PublicDefinitions.Add("WITH_VRM4U_ASSIMP_DEBUG=0");
+
+				string BuildString = (Target.Configuration != UnrealTargetConfiguration.Debug) ? "Release" : "Release";
+				PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp", "lib", PlatformString, BuildString, "assimp-vc141-mt.lib"));
+
+				PublicDelayLoadDLLs.Add("assimp-vc141-mt.dll");
+				RuntimeDependencies.Add(Path.Combine(ThirdPartyPath, "assimp", "bin", PlatformString, "assimp-vc141-mt.dll"));
+
+			}
+		}
+		if (Target.Platform == UnrealTargetPlatform.Android)
+		{
+			// static link
+			{
+				string PlatformString = "armeabi-v7a";
+				PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp", "lib", PlatformString, "libassimp.a"));
+			}
+
+			/*
+			// dynamic link
+			{
+				string PlatformString = "armeabi-v7a";
+				PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp/lib", PlatformString, "libassimp.so"));
+
+				string PluginPath = Utils.MakePathRelativeTo(ModuleDirectory, Target.RelativeEnginePath);
+				AdditionalPropertiesForReceipt.Add("AndroidPlugin", Path.Combine(PluginPath, "VRM4ULoader_APL.xml"));
+			}
+			*/
+		}
+		if (Target.Platform == UnrealTargetPlatform.IOS)
+		{
+			string PlatformString = "IOS";
+			PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp", "lib", PlatformString, "libassimp.a"));
+		}
+		if (Target.Platform == UnrealTargetPlatform.Mac)
+		{
+			// static lib
+			string PlatformString = "Mac";
+			PublicAdditionalLibraries.Add(Path.Combine(ThirdPartyPath, "assimp", "lib", PlatformString, "libassimp.a"));
+			PublicSystemLibraries.Add("z");
+		}
+
+	}
+}

Plugins/VRM4U/Source/VRM4ULoader/VRM4ULoader_APL.xml

@@ -0,0 +1,35 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!--VRM4ULoader plugin additions-->
+<root xmlns:android="http://schemas.android.com/apk/res/android">
+	<!-- init section is always evaluated once per architecture -->
+	<init>
+		<log text="VRM4ULoader init"/>
+		<setBool result="bSupported" value="false"/>
+		<isArch arch="armeabi-v7a">
+			<setBool result="bSupported" value="true"/>
+		</isArch>
+	</init>
+
+	<!-- optional files or directories to copy to Intermediate/Android/APK -->
+	<resourceCopies>
+		<isArch arch="armeabi-v7a">
+			<copyFile src="$S(PluginDir)/../../ThirdParty/assimp/lib/armeabi-v7a/libassimp.so"
+						dst="$S(BuildDir)/libs/armeabi-v7a/libassimp.so" />
+			<log text="Copying libassimp.so"/>
+		</isArch>
+		<isArch arch="arm64-v8a">
+			<copyFile src="$S(PluginDir)/ThirdParty/assimp/lib/arm64-v8a/libassimp.so"
+						dst="$S(BuildDir)/libs/arm64-v8a/libassimp.so" />
+			<log text="Copying libassimp.so"/>
+		</isArch>
+	</resourceCopies>
+
+	<!-- optional libraries to load in GameActivity.java before libUE4.so -->
+	<soLoadLibrary>
+		<if condition="bSupported">
+			<true>
+				<loadLibrary name="assimp" failmsg="assimp library not loaded and required!" />
+			</true>
+		</if>
+	</soLoadLibrary>
+</root>