If a child anim BP is made and is saved without saving its parent, then when the class is reloaded later it will not be able to find the parent's sparse class data in the linker (as it will have been generated again from scratch on load, which doesnt patch the linker until the asset is resaved). This leads to serialization size mismatches.
To address this (and because the sparse class data will always be regenerated as part of compile-on-load), we skip the portion of the CDO's archive that represents the serialized sparse class data if it is null after serialization. It can of course be legitimately null in a lot of cases (say a regular actor Blueprint), but this should have no ill effects and effectively be a seek to the current archive offset.
This CL also fixes a number of child anim BP-related issues. First of all it prevents a crash when accessing out-of-bounds AnimNodeData by ensuring it is correctly duplicated in all circumstances. It also correctly propogates values from root->child sparse class data (in the same manner that anim node data used to be propogated before). This deals with compile-on-load issues where the child classes sparse class data is regenerated without serializing the parent classes sparse class data (see crash fix above).
#jira UE-114674 - Creating a new child anim BP crashes
#rb Fred.Kimberley,Phillip.Kavan,Jurre.deBaare
[CL 16313070 by Thomas Sarkanen in ue5-main branch]
Switches generated structs to be subobjects of the generated class.
Key to this is supporting re-instancing via re-linking the mutable struct before the generated class is linked to allow the correct class layout to be used by serializers. This is because the property links are not preserved with StaticDuplicateObject.
#jira UE-114456 - Crash on loading Animation Blueprint asset that was renamed twice prior to that
#jira UE-114457 - A duplicate is created for an Animation Blueprint asset after its renaming
#rb Jurre.deBaare
#fyi Benn.Gallagher
[CL 16166745 by Thomas Sarkanen in ue5-main branch]
Per-node constant data is now held on a generated struct as part of sparse class data.
Per-node mutable data (i.e. pin links/property access mappings) is now held on a generated 'mutable data' struct that is compiled as part of the generated class.
The anim BP compiler is now extended more conventionally using UAnimBlueprintExtension, derived from UBlueprintExtension. This directly replaces the older 'compiler handler' pattern that was added in an emergency fashion for 4.26. Anim graph nodes now request their required extensions and these are held on the UAnimBlueprint in the UBlueprint::Extensions array. The Extensions array is potentially refreshed with any node addition or removal. The Extensions array is force-refreshed each time an anim BP is compiled for the first time to deal with newly added or removed requirements.
Const-corrected a bunch of UAnimInstance/FAnimInstanceProxy APIs that rely on (now truly) const data.
Added a split state/constant version of FInputScaleBiasClamp to allow some of its data to be split into constants.
Tweaked alignment/ordering of FPoseLinkBase to save a few bytes per pose link.
Deprecated FAnimNode_Base::OverrideAsset in favor of a more UAnimGraphNode_Base-based approach. Individual nodes can still have runtime overrides via specific accessors. The new approach will also give us the oppurtunity to override multiple assets per node if required in the future.
Moved property access into Engine module & removed event support from it - this was never used.
Reworked property access compilation API a little - construction/lifetime was a bit confusing previously.
Optimized path used to create UK2Node_StructMemberSet nodes in per-node custom events. When using mutable data, the structure used is large and very sparsely connected (i.e. only a few properties are written) so we only create pins that are actually going to be used, rather than creating all of them and conly connecting a few.
Patched the following nodes to use the new data approach:
- Asset players (sequences, blendspaces, aim offsets)
- Blend lists
- Ref poses
- Roots
#rb Jurre.deBaare, Martin.Wilson, Keith.Yerex
[CL 16090510 by Thomas Sarkanen in ue5-main branch]
Per-node constant data is now held on a generated struct as part of sparse class data.
Per-node mutable data (i.e. pin links/property access mappings) is now held on a generated 'mutable data' struct that is compiled as part of the generated class.
The anim BP compiler is now extended more conventionally using UAnimBlueprintExtension, derived from UBlueprintExtension. This directly replaces the older 'compiler handler' pattern that was added in an emergency fashion for 4.26. Anim graph nodes now request their required extensions and these are held on the UAnimBlueprint in the UBlueprint::Extensions array. The Extensions array is potentially refreshed with any node addition or removal. The Extensions array is force-refreshed each time an anim BP is compiled for the first time to deal with newly added or removed requirements.
Const-corrected a bunch of UAnimInstance/FAnimInstanceProxy APIs that rely on (now truly) const data.
Added a split state/constant version of FInputScaleBiasClamp to allow some of its data to be split into constants.
Tweaked alignment/ordering of FPoseLinkBase to save a few bytes per pose link.
Deprecated FAnimNode_Base::OverrideAsset in favor of a more UAnimGraphNode_Base-based approach. Individual nodes can still have runtime overrides via specific accessors. The new approach will also give us the oppurtunity to override multiple assets per node if required in the future.
Moved property access into Engine module & removed event support from it - this was never used.
Includes a thread-safety fix for 4.26 that hasnt made it over to 5.0 yet.
Reworked property access compilation API a little - construction/lifetime was a bit confusing previously.
Optimized path used to create UK2Node_StructMemberSet nodes in per-node custom events. When using mutable data, the structure used is large and very sparsely connected (i.e. only a few properties are written) so we only create pins that are actually going to be used, rather than creating all of them and conly connecting a few.
Patched the following nodes to use the new data approach:
- Asset players (sequences, blendspaces, aim offsets)
- Blend lists
- Ref poses
- Roots
#rb Jurre.deBaare, Martin.Wilson, Keith.Yerex
[CL 16071104 by Thomas Sarkanen in ue5-main branch]
#rb johan.torp
GetLinkerUE4Version renamed to GetLinkerUEVersion
#ROBOMERGE-SOURCE: CL 15859222 in //UE5/Release-5.0-EarlyAccess/...
#ROBOMERGE-BOT: STARSHIP (Release-5.0-EarlyAccess -> Main) (v786-15839533)
[CL 15859586 by mark lintott in ue5-main branch]
+ UMirrorDataTable stores the bones / notifies / curves to mirror
* Generates table based on FMirrorFindReplaceExpression in project settings
* Can be used in any Animation Blueprint with a compatible skeleton
* Support for self mirroring
* Shared mirror axis
+ Project Settings for Mirroring Find & Replace Strings
+ FMirrorFindReplaceExpression
* Find the mirrored name based on a prefix, suffix, or regular expression match
+ FAnimNode_Mirror
* Inertialization support for blending between mirroring / unmirrored states over a configurable duration
* Support for different MirrorDataTables (to support partial / full body mirroring)
+ Deprecated old mirroring system (FBoneMirrorExport) in SkeletalMesh
#rb Thomas.Sarkanen
[CL 15580895 by timothy daoust in ue5-main branch]
Automatically connect Anim node's out exec pin to the following node when placed within an execution chain
#ROBOMERGE-SOURCE: CL 15567924 in //UE5/Release-5.0-EarlyAccess/...
#ROBOMERGE-BOT: STARSHIP (Release-5.0-EarlyAccess -> Main) (v771-15082668)
[CL 15567926 by jurre debaare in ue5-main branch]
