Unreal Engine Daily Report - 2026-06-02 - Commits Total:112

[ZachZeng-99]

✨ New Features

Added Network Waste Tab to Unreal Insights
在Unreal Insights中添加网络浪费标签页

A new "Network Waste" tab has been added to Unreal Insights for Iris-based projects (when UE_NET_IRIS_TYPE_STATS_ENABLED is enabled). This tab displays per-replicated-type poll waste, send waste, and bandwidth waste percentages for a selected packet range, providing deep insight into network inefficiencies.
为基于Iris的项目（启用UE_NET_IRIS_TYPE_STATS_ENABLED时）在Unreal Insights中添加了新的“网络浪费”标签页。该标签页显示选定数据包范围内按复制类型划分的轮询浪费、发送浪费和带宽浪费百分比，从而深入了解网络低效问题。

Commits: b54b390

Extended GPU Radix Sort to support indirect dispatch
扩展GPU基数排序以支持间接调度

The GPU Radix Sort implementation has been extended to support indirect dispatch. This allows it to be used in more rendering and compute scenarios where the number of elements to sort is determined on the GPU.
GPU基数排序实现已扩展以支持间接调度。这使其能够用于更多渲染和计算场景，其中待排序的元素数量由GPU决定。

Commits: 56045fa 8b98317

Added NvdbgGenerator tool for NVIDIA Aftermath shader debugging
添加NvdbgGenerator工具用于NVIDIA Aftermath着色器调试

A new standalone tool, NvdbgGenerator, has been introduced for Win64. It takes shader PDB hashes and forces compilation with NVIDIA Aftermath shader debug-info enabled, generating matching .nvdbg files for use with Aftermath crash dumps. This significantly improves the ability to debug GPU crashes.
引入了一个新的独立工具NvdbgGenerator（Win64）。它获取着色器PDB哈希值并强制启用NVIDIA Aftermath着色器调试信息进行编译，生成匹配的.nvdbg文件，用于Aftermath崩溃转储。这显著提高了调试GPU崩溃的能力。

Commits: ba750f9

Added in-app store review support for Android
添加Android应用内商店评论支持

A generic RequestStoreReview entry point has been added to FPlatformMisc, with a working Android implementation that uses the Google Play Review API via JNI. This allows any game to programmatically prompt users for a store rating on Android, complementing the existing iOS support.
在FPlatformMisc中添加了一个通用的RequestStoreReview入口点，并提供了通过JNI使用Google Play Review API的Android实现。这使得任何游戏都可以在Android上以编程方式提示用户进行商店评分，补充了现有的iOS支持。

Commits: 4265159

Added EQS Oriented Point item type
添加EQS定向点项目类型

A new EnvQueryItemType_OrientedPoint has been added to the Environment Query System (EQS). This item type stores both a location and a rotator, enabling queries that require directional information. The EQS rendering has also been updated to display the item's rotation.
在环境查询系统（EQS）中添加了新的EnvQueryItemType_OrientedPoint。此项目类型同时存储位置和旋转量，支持需要方向信息的查询。EQS渲染也已更新以显示项目的旋转。

Commits: fa2c65b

Added StateTree Events View window
添加StateTree事件视图窗口

A new window has been added to the StateTree editor that allows developers to see all events used by a State Tree asset. This improves the workflow for managing and debugging event-driven state machines.
在StateTree编辑器中添加了一个新窗口，允许开发者查看StateTree资产使用的所有事件。这改进了管理和调试事件驱动状态机的工作流程。

Commits: 310c19b

Added Niagara Validation Rule for FX Mesh Properties
添加Niagara FX网格属性验证规则

A new UNiagaraValidationRule_FXMeshProperties has been added. This rule flags static meshes used in Niagara Mesh Renderers that have properties unsuitable for FX (e.g., Nanite enabled, collision, shadow casting), with a one-click fix to modify the mesh asset. This helps ensure optimal performance and correctness for particle systems.
添加了新的UNiagaraValidationRule_FXMeshProperties。此规则会标记Niagara网格渲染器中使用的、具有不适合FX属性（例如，启用了Nanite、碰撞、投射阴影）的静态网格，并提供一键修复以修改网格资产。这有助于确保粒子系统的最佳性能和正确性。

Commits: 6ad964f

Added support for scoped types in UAF anim node runtime
在UAF动画节点运行时中添加对作用域类型的支持

The UAF (Unreal Animation Framework) anim node runtime now supports scoped types. This allows for better type safety and organization within the animation graph system.
UAF（虚幻动画框架）动画节点运行时现在支持作用域类型。这使得动画图表系统中的类型安全性和组织性得到提升。

Commits: ee7280f

Added basic cache pose support for UAF Layering
为UAF分层添加基本缓存姿势支持

The UAF Layering system has been updated with basic support for cached poses, including normal and dynamic additive cached poses. The layering UI has also been updated to reflect pose bindings and active usage.
UAF分层系统已更新，增加了对缓存姿势的基本支持，包括常规和动态叠加缓存姿势。分层UI也已更新以反映姿势绑定和活跃使用情况。

Commits: b4bf595

Added Audio Asset Processor for SemanticSearch plugin
为SemanticSearch插件添加音频资产处理器

The SemanticSearch plugin now includes an Audio Asset Processor. This allows the plugin to index and search audio assets, expanding its capabilities beyond other asset types.
SemanticSearch插件现在包含一个音频资产处理器。这使得该插件能够索引和搜索音频资产，将其功能扩展到其他资产类型之外。

Commits: e6861ee

Added AddOrUpdateDefaultValue to analytics provider interface
在分析提供者接口中添加AddOrUpdateDefaultValue

A new function, AddOrUpdateDefaultValue, has been added to the IAnalyticsProviderET interface. This allows adding or updating a single attribute value without needing to copy and update the entire attributes array, improving performance and code clarity.
在IAnalyticsProviderET接口中添加了一个新函数AddOrUpdateDefaultValue。这允许添加或更新单个属性值，而无需复制和更新整个属性数组，从而提高了性能和代码清晰度。

Commits: a7e363d

Added additionalJavaSrcDirs node to UPL
在UPL中添加additionalJavaSrcDirs节点

A new additionalJavaSrcDirs node has been added to Unreal Plugin Language (UPL). This allows plugins to opt into using their module Java source files directly in Gradle, simplifying the build process for Android plugins.
在虚幻插件语言（UPL）中添加了新的additionalJavaSrcDirs节点。这允许插件选择直接在Gradle中使用其模块的Java源文件，从而简化了Android插件的构建过程。

Commits: ee072f4

Added FOnConversationUpdated with source application reference
添加带有源应用程序引用的FOnConversationUpdated

The FOnConversationUpdated delegate now passes a reference to the broadcasting FWebApplication as its first argument. This eliminates the need for subscribers to capture a back-reference, simplifying lifetime management and preventing cyclical references.
FOnConversationUpdated委托现在将广播的FWebApplication的引用作为其第一个参数传递。这消除了订阅者捕获反向引用的需要，简化了生命周期管理并防止了循环引用。

Commits: 114cd91

Added bAllowEngineStdioOutput target rule for programs
为程序添加bAllowEngineStdioOutput目标规则

A new target rule, bAllowEngineStdioOutput, has been introduced. Programs that own their stdout/stderr (like UnrealPackageTool) can set this to false to prevent engine-level writes to standard I/O streams, protecting structured output from corruption.
引入了一个新的目标规则bAllowEngineStdioOutput。拥有自己stdout/stderr的程序（如UnrealPackageTool）可以将其设置为false，以防止引擎级别的写入到标准I/O流，从而保护结构化输出不被破坏。

Commits: 935c9d3

Added heightfield collision support for baked simulation rivers
为烘焙模拟河流添加高度场碰撞支持

The Buoyancy and Water systems now support heightfield collisions against baked simulation rivers. This provides more accurate and performant physical interactions with simulated water bodies.
浮力和水系统现在支持对烘焙模拟河流的高度场碰撞。这为与模拟水体的物理交互提供了更准确和高性能的支持。

Commits: 819efa2

Added ability for compress and encrypted per file with op-based chunk assignment
添加了基于操作的数据块分配中按文件压缩和加密的能力

The Io Store utilities now support per-file compression and encryption even when chunk assignment comes from an operation rather than .txt files. This provides more flexibility in content packaging and distribution.
Io Store实用程序现在支持按文件压缩和加密，即使数据块分配来自操作而不是.txt文件。这为内容打包和分发提供了更大的灵活性。

Commits: 9db6bc2

Added data layer/EDL support to PCG runtime gen scheduler
为PCG运行时生成调度器添加数据层/EDL支持

The PCG (Procedural Content Generation) runtime generation scheduler now supports data layers and EDL (Event-Driven Loading) for its streaming queries. This enables more sophisticated and efficient world partitioning and streaming scenarios.
PCG（程序化内容生成）运行时生成调度器现在在其流式查询中支持数据层和EDL（事件驱动加载）。这使得更复杂和高效的世界分区和流式场景成为可能。

Commits: 7981018

Added SortPriority on FAutomationTestInfo for explicit test ordering
在FAutomationTestInfo上添加SortPriority以实现显式测试排序

Automation tests can now specify a SortPriority to define an explicit dispatch ordering (e.g., A -> B -> C). This allows for complex dependency chains in test execution, falling back to default name-based sorting when not set.
自动化测试现在可以指定SortPriority来定义显式的调度顺序（例如，A -> B -> C）。这允许在测试执行中出现复杂的依赖链，未设置时将回退到默认的基于名称的排序。

Commits: 6fa2475

Enabled UE version stamping for non-P4 repos
为非P4仓库启用UE版本标记逻辑

The UE version stamping logic, which was previously dependent on Perforce, has been enabled for non-P4 repositories. This ensures consistent version information is generated regardless of the source control system used.
以前依赖于Perforce的UE版本标记逻辑现已为非P4仓库启用。这确保了无论使用何种源代码控制系统，都能生成一致的版本信息。

Commits: 65adf89

Enabled process racing for non-farm users on Windows
为Windows上的非农场用户启用进程竞赛

UnrealBuildTool (UBT) now enables process racing by default for non-farm users on Windows. This feature kicks in when the local process weight is under 50%, potentially speeding up build times by utilizing available CPU resources more aggressively.
虚幻构建工具（UBT）现在默认在Windows上为非农场用户启用进程竞赛。当本地进程权重低于50%时，此功能会启动，通过更积极地利用可用CPU资源来潜在地加快构建时间。

Commits: `c7bf7f7

Enabled Cloud DDC startup probe by default
默认启用Cloud DDC启动探测

The Cloud DDC (Derived Data Cache) startup probe is now enabled by default. This eases pressure on the data store backend during startup and is a generally safe and beneficial setting to reduce configuration permutations.
Cloud DDC（派生数据缓存）启动探测现在默认启用。这减轻了启动期间对数据存储后端的压力，并且是一个通常安全且有益的设置，可以减少配置组合。

Commits: f6499e0

Added EAutomationTestFlags::EnableAutoRTFM
添加EAutomationTestFlags::EnableAutoRTFM

A new automation test flag, EnableAutoRTFM, has been added. This flag enables AutoRTFM for the test function, which is useful when a test contains inner classes that inherit from unannotated virtual base classes, simplifying the process of writing AutoRTFM-compatible tests.
添加了一个新的自动化测试标志EnableAutoRTFM。此标志为测试函数启用AutoRTFM，当测试包含继承自未注释虚基类的内部类时非常有用，简化了编写AutoRTFM兼容测试的过程。

Commits: 866e093

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🚀 Major Changes

Consolidated IInputDevice module registration into GenericApplication layer
将IInputDevice模块注册整合到GenericApplication层

The registration and creation of IInputDevice modules has been consolidated into the GenericApplication layer. This includes a new ForEachInputDevice helper function and storing the external array on the GenericApplication itself, which was previously done by every platform subclass. This cleanup simplifies input device access and prepares for a future input thread.
IInputDevice模块的注册和创建已整合到GenericApplication层。这包括一个新的ForEachInputDevice辅助函数，并将外部数组存储在GenericApplication本身，以前这是由每个平台子类完成的。这次清理简化了输入设备的访问，并为未来的输入线程做准备。

Commits: 4432aed

Re-organized Game Input NuGet location and module naming
重新组织Game Input NuGet位置和模块命名

The Game Input library has been moved from a plugin to Engine/Source/ThirdParty/Microsoft to allow linking against it in ApplicationCore. The module has been renamed from GameInputWindowsLibrary to GameInputLibrary in preparation for additional platform support, and the header file has been moved to a subfolder to avoid naming conflicts.
Game Input库已从插件移动到Engine/Source/ThirdParty/Microsoft，以允许在ApplicationCore中链接它。该模块已从GameInputWindowsLibrary重命名为GameInputLibrary，为额外的平台支持做准备，并且头文件已移动到子文件夹以避免命名冲突。

Commits: 8c69378

Routed ControlRig world transform through a data source for Verse/UAF hosts
通过Verse/UAF宿主的数据源路由ControlRig世界变换

The ToWorldSpaceTransform in FRigVMExecuteContext is now routed through a new URigVMWorldTransformDataSource. This fixes a bug where Verse/UAF entity rigs produced incorrect world-space output because they lacked a bound USceneComponent. The change provides a single source of truth for the rig's world transform, usable by both actor-bound and entity-bound rigs.
FRigVMExecuteContext中的ToWorldSpaceTransform现在通过一个新的URigVMWorldTransformDataSource进行路由。这修复了一个错误，即Verse/UAF实体绑定由于缺乏绑定的USceneComponent而产生了错误的局部到世界空间输出。此更改提供了绑定世界变换的单一真实来源，可供角色绑定和实体绑定使用。

Commits: d280de5

Updated minimum supported Visual Studio version to 17.14
更新最低支持的Visual Studio版本至17.14

The minimum supported version of Visual Studio 2022 has been updated to 17.14. Developers using older versions of Visual Studio will need to update their development environment to continue building Unreal Engine.
Visual Studio 2022的最低支持版本已更新至17.14。使用旧版Visual Studio的开发者需要更新其开发环境才能继续构建虚幻引擎。

Commits: bc40717

Defaulted EnableSandbox to true for AI Assistant
将AI Assistant的EnableSandbox默认设置为true

Sandbox support in the AI Assistant plugin is now enabled by default. Config files that omit EnableSandbox will now get a sandbox manager, while setting EnableSandbox=false is still honored to disable it.
AI Assistant插件中的沙盒支持现在默认启用。省略EnableSandbox的配置文件现在将获得一个沙盒管理器，而设置EnableSandbox=false仍然有效以禁用它。

Commits: 18a1f42

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⚡ Performance

Pulled GPUSkinCache and SubmitBufferUploads out of "Unaccounted" in CSV Profiler GPU Breakdown
将GPUSkinCache和SubmitBufferUploads从CSV Profiler GPU细分中的“未计入”中分离出来

The GPU breakdown in the CSV Profiler now correctly accounts for GPUSkinCache and SubmitBufferUploads time, pulling them out of the "Unaccounted" category. This provides more accurate and actionable profiling data for developers optimizing GPU performance.
CSV Profiler中的GPU细分现在正确地将GPUSkinCache和SubmitBufferUploads的时间计入，将它们从“未计入”类别中分离出来。这为优化GPU性能的开发者提供了更准确和可操作的性能分析数据。

Commits: e437e94

Avoided creation of unnecessary RWLock for each UMaterialInterface
避免为每个UMaterialInterface创建不必要的RWLock

The creation of a RWLock primitive for each UMaterialInterface has been made lazy. This avoids the overhead of creating this synchronization primitive when it is not actually needed, reducing memory consumption and improving performance.
为每个UMaterialInterface创建RWLock原语的操作已变为惰性。这避免了在不需要时创建此同步原语的开销，从而减少了内存消耗并提高了性能。

Commits: a5202cf

Improved TEDS Outliner performance by batching sort node updates
通过批量排序节点更新提高TEDS Outliner性能

The TEDS Outliner now collects added rows and runs a single sort node update instead of one per addition. This significantly improves performance when adding many items to the outliner, especially in scenarios with large numbers of actors or assets.
TEDS Outliner现在会收集添加的行并运行一次排序节点更新，而不是每次添加都更新。这在向大纲视图添加许多项目时显著提高了性能，尤其是在包含大量Actor或资产的场景中。

Commits: 6a023a5

Fixed Motion Blur incorrect output with wave intrinsics
修复了使用波内联函数时的运动模糊错误输出

Fixed an issue where motion blur produced incorrect half and quarter resolution output when wave intrinsics were active. The root cause was incorrect wave butterfly reductions in the shader.
修复了当波内联函数处于活动状态时，运动模糊产生错误的半分辨率和四分之一分辨率输出的问题。根本原因是着色器中错误的波蝶形归约。

Commits: faf3e44

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🐛 Bug Fixes

Fixed crash in Material Translator (MIR) with dead parameters
修复了包含无效参数的材料翻译器（MIR）崩溃

Fixed a check(Composite) failure in the new material translator when a material has a dead parameter under a pruned MaterialAttributes slot. The fix prevents a crash during material compilation in specific edge cases.
修复了新材质翻译器中，当材质在修剪后的MaterialAttributes槽下存在无效参数时发生的check(Composite)失败。此修复防止了在特定边缘情况下材质编译期间的崩溃。

Commits: 1b899f1

Fixed crash in RemoteObjects serialization for TObjectPtr
修复了RemoteObjects中TObjectPtr序列化的崩溃

Fixed an issue where TObjectPtr was being dereferenced during (de-)serialization in RemoteObjects (CharacterMovementReplication), which could cause a forbidden migration during serialization. This resolves a potential crash or corruption.
修复了在RemoteObjects（CharacterMovementReplication）的（反）序列化过程中TObjectPtr被解引用的问题，这可能导致序列化期间出现禁止的迁移。这解决了一个潜在的崩溃或数据损坏问题。

Commits: 83fef12

Fixed RemoteObjects migration for UAnimInstance with linked anim nodes
修复了具有链接动画节点的UAnimInstance的RemoteObjects迁移

Fixed a migration issue in RemoteObjects for UAnimInstance objects that have linked anim nodes. This ensures correct state transfer for animation instances during object migration.
修复了具有链接动画节点的UAnimInstance对象在RemoteObjects中的迁移问题。这确保了在对象迁移期间动画实例的正确状态传输。

Commits: bf3f339

Fixed UAbilityTask PostMigrate logic for ability counts
修复了UAbilityTask中关于能力计数的PostMigrate逻辑

Added PostMigrate logic to UAbilityTask to correctly handle ability counts after migration. This fixes a potential issue with the GameplayAbilities system when objects are migrated.
为UAbilityTask添加了PostMigrate逻辑，以在迁移后正确处理能力计数。这修复了GameplayAbilities系统在对象迁移时的一个潜在问题。

Commits: da6b61c

Fixed Horde PerforceMaterializer dirty state on unshelve with no actionable files
修复了Horde PerforceMaterializer在取消搁置无操作文件时的脏状态

Fixed an issue in Horde where UnshelveAsync did not save a Clean state when the shelved changelist had no actionable files. This left the workspace marked Dirty, causing a full clean on the next sync.
修复了Horde中的一个问题，即当搁置的变更列表没有可操作文件时，UnshelveAsync没有保存Clean状态。这导致工作空间被标记为Dirty，从而在下次同步时进行完全清理。

Commits: 942c991

Fixed FMeshWeights::CotanCentroidSafe degenerate fallback
修复了FMeshWeights::CotanCentroidSafe的退化回退

Fixed a bug in FMeshWeights::CotanCentroidSafe where the degenerate fallback was not using the passed-in PositionFunc. This ensures correct weight calculation in degenerate mesh cases.
修复了FMeshWeights::CotanCentroidSafe中的一个错误，即退化回退未使用传入的PositionFunc。这确保了在退化网格情况下权重计算的正确性。

Commits: ffce137

Fixed public exposure leakage when asset move fails
修复了资产移动失败时的公开暴露泄漏

Fixed an issue in AssetRenameManager where public exposure of an asset could leak if the move operation failed. This ensures that the asset's public state is correctly managed during failed rename/move operations.
修复了AssetRenameManager中一个问题，即如果移动操作失败，资产的公开暴露可能会泄漏。这确保了在重命名/移动操作失败期间，资产的公开状态得到正确管理。

Commits: c14f761

Fixed crash in BPI (Blueprint Interface) FNodeTextCache tooltip priming
修复了BPI（蓝图接口）FNodeTextCache工具提示准备时的崩溃

Added a null-guard for a schema dereference in FNodeTextCache during tooltip priming that could cause a crash in Blueprint Interfaces. This improves stability in the Blueprint editor.
在FNodeTextCache的工具提示准备过程中，为模式解引用添加了空值保护，这可能导致蓝图接口崩溃。这提高了蓝图编辑器的稳定性。

Commits: 33eab9d

Fixed PCG default point seed value being 0 instead of 42
修复了PCG默认点种子值为0而不是42

Fixed an issue where the default seed initialized on output points from GPU nodes in PCG was 0 instead of the expected value of 42. This ensures consistent and predictable procedural generation results.
修复了PCG中GPU节点输出点上初始化的默认种子为0而不是预期值42的问题。这确保了程序化生成结果的一致性和可预测性。

Commits: 679f13c

Fixed PCG alpha channel preservation when saving RGBA float textures
修复了PCG保存RGBA浮点纹理时的Alpha通道保留问题

Fixed an issue in the PCGSaveTextureToAsset element where the alpha channel was not being preserved when saving RGBA float textures. This ensures that textures with important alpha data are correctly saved.
修复了PCGSaveTextureToAsset元素中保存RGBA浮点纹理时未保留Alpha通道的问题。这确保了具有重要Alpha数据的纹理被正确保存。

Commits: 840f490

Fixed cook dependency errors in batch duplicated MetaSounds
修复了批量复制MetaSounds中的烹饪依赖错误

Fixed issues with cook dependency errors that occurred in batch-duplicated MetaSounds. A pre-save hook was added to AdvancedCopyPackages to correctly fix up references during the advanced copy process.
修复了批量复制的MetaSounds中出现的烹饪依赖错误。在AdvancedCopyPackages中添加了预保存钩子，以在高级复制过程中正确修复引用。

Commits: 032e246

Fixed Mover component crashes when editing Details panel during PIE
修复了在PIE期间编辑详细信息面板时Mover组件的崩溃

Fixed crashes and stale object mappings in the Mover plugin that occurred when editing Details panel values on an actor with a MoverComponent while PIE was running. The movement simulation is now correctly destroyed and recreated fresh.
修复了Mover插件中在PIE运行时编辑带有MoverComponent的Actor的详细信息面板值时发生的崩溃和陈旧对象映射问题。移动模拟现在被正确地销毁并重新创建。

Commits: 9dedcc5

Fixed ScrollBox child widget size being forced to 0 in test/shipping builds
修复了ScrollBox子控件在测试/发布版本中大小被强制设为0的问题

Fixed an edge case where a ScrollBox widget with custom navigation could cause child widgets to have their size forced to 0 on some platforms in test/shipping builds. The fix initializes SScrollPanel::ArrangedSize to FVector2D::ZeroVector.
修复了一个边缘情况，即具有自定义导航的ScrollBox控件可能导致子控件在某些平台的测试/发布版本中大小被强制设为0。修复方法是将SScrollPanel::ArrangedSize初始化为FVector2D::ZeroVector。

Commits: d727f40

Fixed MetaHuman DNA translator crash during triangulation
修复了MetaHuman DNA翻译器在三角剖分期间的崩溃

Fixed a crash in MetaHumanInterchangeDnaTranslator.cpp that occurred when triangulating DNA meshes. This improves the stability of the MetaHuman import pipeline.
修复了MetaHumanInterchangeDnaTranslator.cpp中在对DNA网格进行三角剖分时发生的崩溃。这提高了MetaHuman导入流程的稳定性。

Commits: 01a372c

Fixed Mutable node Skeletal Mesh Transform with Bone not compiling
修复了Mutable节点中带有骨骼的骨骼网格变换无法编译的问题

Fixed an issue in the Mutable plugin where the "Skeletal Mesh Transform with Bone" node was not getting compiled. This ensures that customizable characters using this node function correctly.
修复了Mutable插件中“带有骨骼的骨骼网格变换”节点无法编译的问题。这确保了使用此节点的可定制角色能正常运行。

Commits: ba177dc

Fixed shader preprocessor assert with variadic macros
修复了带有可变参数宏的着色器预处理器断言

Fixed an assert in the shader preprocessor when processing macro arguments for variadic macros with no fixed parameters. This prevents a crash during shader compilation in certain configurations.
修复了着色器预处理器在处理没有固定参数的可变参数宏的参数时的断言失败。这防止了在某些配置下着色器编译期间的崩溃。

Commits: 546c9bb

Fixed MetaHuman Identity/Performance/SkeletalMesh UEFN validation errors
修复了MetaHuman Identity/Performance/SkeletalMesh的UEFN验证错误

Fixed validation errors that occurred for MetaHuman Identity, Performance, and SkeletalMesh