Cook 单个资源

HotPatcher有一个函数叫做OnCookPlatform函数，需要资源名字和烘培平台就可以烘培资源了。简单把这个函数提取出来，我这边使用的是控制台来烘焙鼠标选中Content面板中的资源。

控制台命令

传递烘培资源的平台，然后创建烘培的路径和开始烘培，最后完成烘培结果的显示。

GetCookedAssetDir()：获取烘培路径
CookPackage()：烘培函数，即生成文件
CreateSaveFileNotify()：完成烘培结果显示

// Cheat command to load all assets of a given type
static FAutoConsoleCommand CookChoosedAssets(TEXT("CookChoosedAssets"),TEXT("Cook Choosed Assets in the Content Broweser"),FConsoleCommandWithArgsDelegate::CreateStatic([](const TArray<FString>& Platforms){//Cook A single asset//1. Get Asset Path + Name  on the ContentBrowserFContentBrowserModule& ContentBrowserModule = FModuleManager::Get().LoadModuleChecked<FContentBrowserModule>(TEXT("ContentBrowser"));TArray<FAssetData> AssetsData;ContentBrowserModule.Get().GetSelectedAssets(AssetsData);if (AssetsData.Num() == 0){UE_LOG(LogTemp, Warning, TEXT("Plase Choose assets"));return;}TArray<UPackage*> AssetsPackage;for (const auto& AssetData : AssetsData){AssetsPackage.AddUnique(AssetData.GetPackage());}for (auto CurrentPlatform : Platforms){//Create folder and Cook assetsFString CookedDir = FPaths::ConvertRelativePathToFull(FPaths::Combine(FPaths::ProjectSavedDir(), TEXT("Cooked")));for (const auto& AssetPacakge : AssetsPackage){FString CookedSavePath = GetCookAssetsSaveDir(CookedDir, AssetPacakge, CurrentPlatform);//Start Cook Assetsbool bCookStatus = CookPackage(AssetPacakge, Platforms, CookedDir);auto Msg = FText::Format(LOCTEXT("CookAssetsNotify", "Cook Platform {1} for {0} {2}!"),UKismetTextLibrary::Conv_StringToText(AssetPacakge->FileName.ToString()),UKismetTextLibrary::Conv_StringToText(CurrentPlatform),bCookStatus ? UKismetTextLibrary::Conv_StringToText(TEXT("Successfuly")) : UKismetTextLibrary::Conv_StringToText(TEXT("Faild")));SNotificationItem::ECompletionState CookStatus = bCookStatus ? SNotificationItem::ECompletionState::CS_Success : SNotificationItem::ECompletionState::CS_Fail;CreateSaveFileNotify(Msg, CookedSavePath, CookStatus);UE_LOG(LogTemp, Warning, TEXT("Cook Single Assets, %s"), bCookStatus?TEXT("True"):TEXT("False"));}}UE_LOG(LogTemp, Warning, TEXT("Finish Cook Single Assets"));}), ECVF_Default);

学会使用ContentBrowser模块获取选中的资源并保存路径
认识FAssetData和UPackage类
UPackage 和EditorEngine 都有一个Save函数

// Copyright Epic Games, Inc. All Rights Reserved.
#include "HAL/IConsoleManager.h"
#include "ContentBrowserModule.h"
#include "IContentBrowserSingleton.h"
#include "UObject/Package.h"
#include "IPlatformFileSandboxWrapper.h"
#include "Interfaces/IPluginManager.h"
#include "Misc/SecureHash.h"
#include "Kismet/KismetTextLibrary.h"
#include "Widgets/Notifications/SNotificationList.h"
#include "Framework/Notifications/NotificationManager.h"
#include "Interfaces/ITargetPlatformManagerModule.h"
#include "Interfaces/ITargetPlatform.h"#include "IPlatformFileSandboxWrapper.h"
#include "Misc/SecureHash.h"#include "Editor.h"#define LOCTEXT_NAMESPACE "EditorCommand"static FString ConvertToFullSandboxPath(const FString& FileName, bool bForWrite)
{FString ProjectContentAbsir = FPaths::ConvertRelativePathToFull(FPaths::ProjectContentDir());if (FileName.StartsWith(ProjectContentAbsir)){FString GameFileName = FileName;GameFileName.RemoveFromStart(ProjectContentAbsir);return FPaths::Combine(FApp::GetProjectName(), TEXT("Content"), GameFileName);}if (FileName.StartsWith(FPaths::EngineContentDir())){FString EngineFileName = FileName;EngineFileName.RemoveFromStart(FPaths::EngineContentDir());return FPaths::Combine(TEXT("Engine/Content"), EngineFileName);;}TArray<TSharedRef<IPlugin> > PluginsToRemap = IPluginManager::Get().GetEnabledPlugins();// Ideally this would be in the Sandbox File but it can't access the project or pluginif (PluginsToRemap.Num() > 0){// Handle remapping of pluginsfor (TSharedRef<IPlugin> Plugin : PluginsToRemap){FString PluginContentDir;if (FPaths::IsRelative(FileName))PluginContentDir = Plugin->GetContentDir();elsePluginContentDir = FPaths::ConvertRelativePathToFull(Plugin->GetContentDir());// UE_LOG(LogHotPatcherEditorHelper,Log,TEXT("Plugin Content:%s"),*PluginContentDir);if (FileName.StartsWith(PluginContentDir)){FString SearchFor;SearchFor /= Plugin->GetName() / TEXT("Content");int32 FoundAt = FileName.Find(SearchFor, ESearchCase::IgnoreCase, ESearchDir::FromEnd);check(FoundAt != -1);// Strip off everything but <PluginName/Content/<remaing path to file>FString SnippedOffPath = FileName.RightChop(FoundAt);FString LoadingFrom;switch (Plugin->GetLoadedFrom()){case EPluginLoadedFrom::Engine:{LoadingFrom = TEXT("Engine/Plugins");break;}case EPluginLoadedFrom::Project:{LoadingFrom = FPaths::Combine(FApp::GetProjectName(), TEXT("Plugins"));break;}}return FPaths::Combine(LoadingFrom, SnippedOffPath);}}}return TEXT("");
}static FString GetCookAssetsSaveDir(const FString& BaseDir, UPackage* Package, const FString& Platform)
{FString Filename;FString PackageFilename;FString StandardFilename;FName StandardFileFName = NAME_None;//Content folderif (FPackageName::DoesPackageExist(Package->FileName.ToString(), NULL, &Filename, false)){StandardFilename = PackageFilename = FPaths::ConvertRelativePathToFull(Filename);FPaths::MakeStandardFilename(StandardFilename);StandardFileFName = FName(*StandardFilename);}//MakeSure Engine or Project or Plugin ContentsFString SandboxFilename = ConvertToFullSandboxPath(*StandardFilename, true);// UE_LOG(LogHotPatcherEditorHelper,Log,TEXT("Filename:%s,PackageFileName:%s,StandardFileName:%s"),*Filename,*PackageFilename,*StandardFilename);FString CookDir = FPaths::Combine(BaseDir, Platform, SandboxFilename);return  CookDir;
}static bool CookPackage(UPackage* Package, const TArray<FString>& Platforms, const FString& SavePath)
{bool bSuccessed = false;const bool bSaveConcurrent = FParse::Param(FCommandLine::Get(), TEXT("ConcurrentSave"));bool bUnversioned = false;uint32 SaveFlags = SAVE_KeepGUID | SAVE_Async | SAVE_ComputeHash | (bUnversioned ? SAVE_Unversioned : 0);EObjectFlags CookedFlags = RF_Public;if (Cast<UWorld>(Package)){CookedFlags = RF_NoFlags;}if (bSaveConcurrent){SaveFlags |= SAVE_Concurrent;}ITargetPlatformManagerModule& TPM = GetTargetPlatformManagerRef();const TArray<ITargetPlatform*>& TargetPlatforms = TPM.GetTargetPlatforms();TArray<ITargetPlatform*> CookPlatforms;for (ITargetPlatform* TargetPlatform : TargetPlatforms){if (Platforms.Contains(TargetPlatform->PlatformName())){CookPlatforms.AddUnique(TargetPlatform);}}if (Package->FileName.IsNone())return bSuccessed;for (auto& Platform : CookPlatforms){struct FFilterEditorOnlyFlag{FFilterEditorOnlyFlag(UPackage* InPackage, ITargetPlatform* InPlatform){Package = InPackage;Platform = InPlatform;if (!Platform->HasEditorOnlyData()){Package->SetPackageFlags(PKG_FilterEditorOnly);}else{Package->ClearPackageFlags(PKG_FilterEditorOnly);}}~FFilterEditorOnlyFlag(){if (!Platform->HasEditorOnlyData()){Package->ClearPackageFlags(PKG_FilterEditorOnly);}}UPackage* Package;ITargetPlatform* Platform;};FFilterEditorOnlyFlag SetPackageEditorOnlyFlag(Package, Platform);FString CookedSavePath = GetCookAssetsSaveDir(SavePath, Package, Platform->PlatformName());// delete old cooked assetsif (FPaths::FileExists(CookedSavePath)){IFileManager::Get().Delete(*CookedSavePath);}// UE_LOG(LogHotPatcherEditorHelper,Log,TEXT("Cook Assets:%s"),*Package->GetName());Package->FullyLoad();TArray<UObject*> ExportMap;GetObjectsWithOuter(Package, ExportMap);for (const auto& ExportObj : ExportMap){ExportObj->BeginCacheForCookedPlatformData(Platform);}GIsCookerLoadingPackage = true;//UE_LOG(LogTemp, Warning, TEXT("Cook Assets:%s save to %s"), *Package->GetName(), *CookedSavePath);FSavePackageResultStruct Result = GEditor->Save(Package, nullptr, CookedFlags, *CookedSavePath,GError, nullptr, false, false, SaveFlags, Platform,FDateTime::MinValue(), false, /*DiffMap*/ nullptr);GIsCookerLoadingPackage = false;bSuccessed = Result == ESavePackageResult::Success;}return bSuccessed;
}void CreateSaveFileNotify(const FText& InMsg, const FString& InSavedFile, SNotificationItem::ECompletionState NotifyType)
{auto Message = InMsg;FNotificationInfo Info(Message);Info.bFireAndForget = true;Info.ExpireDuration = 5.0f;Info.bUseSuccessFailIcons = false;Info.bUseLargeFont = false;const FString HyperLinkText = InSavedFile;Info.Hyperlink = FSimpleDelegate::CreateLambda([](FString SourceFilePath){FPlatformProcess::ExploreFolder(*SourceFilePath);},HyperLinkText);Info.HyperlinkText = FText::FromString(HyperLinkText);FSlateNotificationManager::Get().AddNotification(Info)->SetCompletionState(NotifyType);
}

注意事项

如何引用库文件和改写Build.cs

// Copyright Epic Games, Inc. All Rights Reserved.using UnrealBuildTool;public class TestPython : ModuleRules
{public TestPython(ReadOnlyTargetRules Target) : base(Target){PCHUsage = PCHUsageMode.UseExplicitOrSharedPCHs;PublicDependencyModuleNames.AddRange(new string[] { "Core", "CoreUObject", "Engine", "InputCore","ContentBrowser","SandboxFile","TargetPlatform"});PrivateDependencyModuleNames.AddRange(new string[]{"Projects","UnrealEd","Engine","Slate","SlateCore","RenderCore"// ... add private dependencies that you statically link with here ...    });}
}

补充

烘培整个（UE4Editor.exe)

查看MainFrameActions.cpp::CookContent函数

D:\UE4\UE_4.25\Engine\Binaries\Win64\UE4Editor-Cmd.exe D:\unrealEngin4WorkStation\TestPython\TestPython.uproject -run=Cook  -TargetPlatform=WindowsNoEditor

烘培地图

UE4Editor.exe <GameName or uproject> -run=cook -targetplatform=<Plat1>+<Plat2> [-cookonthefly] [-iterate] [-map=<Map1>+<Map2>]
or
UE4Editor-Cmd.exe <GameName> -run=cook -targetplatform=<Plat1>+<Plat2> [-cookonthefly] [-iterate] [-map=<Map1>+<Map2>]

简化单个资源烘培


bool SaveToCookAsset(UPackage * InPackage, const FString & InSavePath)
{ITargetPlatformManagerModule& TPM = GetTargetPlatformManagerRef();const TArray<ITargetPlatform*>& TargetPlatforms = TPM.GetTargetPlatforms();ITargetPlatform* Target = nullptr;for (ITargetPlatform *TargetPlatform : TargetPlatforms){if (TargetPlatform->PlatformName() == "WindowsNoEditor"){Target = TargetPlatform;break;}}InPackage->SetPackageFlags(PKG_FilterEditorOnly);uint32 saveFlags = SAVE_KeepGUID | SAVE_Async | SAVE_Unversioned;FSavePackageResultStruct Result = GEditor->Save(InPackage, nullptr, RF_Public, *InSavePath, GError, NULL, false, false, saveFlags, Target, FDateTime::MinValue(), false);return Result == ESavePackageResult::Success;

简单使用GEditor->Save()函数来烘培资源

总结

这次烘培仅仅只能在Editor打开的时候才能使用。

参考资料

简化烘培
UE4官网烘培

UE4 C++（21）：Cook单个资源相关推荐

一种自动将3DMax模型转换为UE4直接可用的模型资源的方法与流程
本发明涉及一种自动将3D Max模型转换为UE4直接可用的模型资源的方法. 背景技术: 现有技术中大部分3D模型的建模工作主要由美术师在3d Max上进行.而由于使用模型的游戏引擎采取各自的模型标准, ...
assetbundle能不能删除_Addressable卸载单个资源的疑问
1)Addressable卸载单个资源的疑问 2)如何判断硬件支持GPU Instance 3)StringBuilder反射实现String报错 4)Unity 2018 RequireES3.1 ...
UE4中修改模型mesh资源的枢轴坐标原点位置
UE4中修改模型mesh资源的枢轴坐标原点位置问题阐述: 对于在UE4中自定义的mesh资源导出保存后以备未来使用,但在未来使用的时候却发现模型的坐标原点不满足需求而无法使用的想法,本篇博客将用两种 ...
ue4风格化材质_ue4商城资源Stylized Terrain Pack of 50 Materials50种材质风格化地形包
Unreal Engine虚幻游戏引擎素材资源 Unreal Engine Marketplace –Stylized Terrain Pack of 50 Materials风格化地形包,50种材质 ...
UE4源码加密及资源加密
虚幻引擎4是由游戏开发者为开发游戏而制作的.完整的游戏开发工具套件.从二维的移动平台游戏到主机平台的大作,虚幻引擎是一个纯C++引擎,专为高性能而设计.它先进CPU/GPU性能分析工具和灵活的渲染器能 ...
UE4如何将虚幻商城资源导入到自己的工程中+保管库的使用
一.目的: 1.导入资源到UE4工程里面很多,下面介绍一个一.参考 1.Unreal初级案例-动作游戏入门中-保管库的使用 http://www.sikiedu.com/course/514/tas ...
(UE4 4.21 ) UE4给编辑器添加菜单栏(Menu)，工具栏(TooBar)，Tab窗口
前言在UE4中存在大量的菜单栏和工具栏.如下面所示本质上上面都是菜单栏和工具栏. 菜单(Menu)的扩展点(ExtendPoints) 在Edit->Editor Preferences-& ...
【Altium Designer 21】单个元器件更新对应PCB封装
主题:目前C16的封装为1206,打算换为1210 一. 初始状态: 初始原理图局部C16: 初始C16封装: 初始C16的PCB: 二. 更新状态: 更新后原理图局部C16(没动): 但我们调整了属 ...
UE4资源热更打包工具HotPatcher
UE4资源热更打包工具HotPatcher https://imzlp.me/posts/17590/ Z's Blog 首页归档分类标签笔记微言资源简历关于待办事项站点日志搜索 ...

UE4 C++（21）：Cook单个资源

文章目录