Output to Text File

IPlatformFile& PlatformFile = FPlatformFileManager::Get().GetPlatformFile();
bool AllowOverwriting = false;
if (PlatformFile.CreateDirectoryTree(*FileSaveDir))
{
//FString FileName = "b" + FString::FromInt(FrameNum) + ".txt";
FString FileName = "vertices_faces.obj";

// Get absolute file path
FString AbsoluteFilePath = FileSaveDir + "/" + FileName;

// Allow overwriting or file doesn't already exist
if (AllowOverwriting || !FPaths::FileExists(*AbsoluteFilePath))
{
FFileHelper::SaveStringToFile(OutputTXT, *AbsoluteFilePath);
}
}