Also restores follow-up CLs 19973746, 19973782
FStaticParameterSet::MaterialLayers can't be deprecated, since a property with the same name is included via FStaticParameterSetRuntimeData
So instead, FMaterialLayersFunctionsRuntimeData is updated with SerializeFromMismatchedTag, to allow serializing a full FMaterialLayersFunction.
When this happens, the EditorOnly portion is stored in a separate heap allocation, and then transferred to FStaticParameterSet::EditorOnly::MaterialLayers
#preflight 626c3405e31dbb512cef1e98
[Backout] - CL19973745
#fyi bob.tellez
Original CL Desc
-----------------------------------------------------------------
[Backout] - CL19964485
#fyi Ben.Ingram
Original CL Desc
-----------------------------------------------------------------
Add 'Optional' EditorOnly data for UMaterialInterface and UMaterialFunctionInterface
These are separate UObject hierarchies that store editor-only UPROPERTIES, but can be included with cooked content, which allows full editor support.
In principle, all editor-only properties could be moved over. So far, this has been limited to UMaterialExpressions, and data related to material parameters.
FStaticParameterSet, FMaterialLayersParameters, and FMaterialCachedExpressionData have all been split into separate editor-only/non-editor-only classes,
which allows the editor-only portion to be stored on the optional editor-only UObject.
#preflight 626ab21dad56c0cbbea32dc4
#rb jason.nadro, francis.hurteau
#jira FORT-463329
[CL 20043286 by Jason Nadro in ue5-main branch]
#fyi Ben.Ingram
Original CL Desc
-----------------------------------------------------------------
Add 'Optional' EditorOnly data for UMaterialInterface and UMaterialFunctionInterface
These are separate UObject hierarchies that store editor-only UPROPERTIES, but can be included with cooked content, which allows full editor support.
In principle, all editor-only properties could be moved over. So far, this has been limited to UMaterialExpressions, and data related to material parameters.
FStaticParameterSet, FMaterialLayersParameters, and FMaterialCachedExpressionData have all been split into separate editor-only/non-editor-only classes,
which allows the editor-only portion to be stored on the optional editor-only UObject.
#preflight 626ab21dad56c0cbbea32dc4
#rb jason.nadro, francis.hurteau
#jira FORT-463329
[CL 19973745 by bob tellez in ue5-main branch]
These are separate UObject hierarchies that store editor-only UPROPERTIES, but can be included with cooked content, which allows full editor support.
In principle, all editor-only properties could be moved over. So far, this has been limited to UMaterialExpressions, and data related to material parameters.
FStaticParameterSet, FMaterialLayersParameters, and FMaterialCachedExpressionData have all been split into separate editor-only/non-editor-only classes,
which allows the editor-only portion to be stored on the optional editor-only UObject.
#preflight 626ab21dad56c0cbbea32dc4
#rb jason.nadro, francis.hurteau
#jira FORT-463329
[CL 19964485 by Ben Ingram in ue5-main branch]
Created UGrassHierarchicalInstancedStaticMeshComponent for the purpose of moving all Landscape grass-specific logic to a subclass (similar to Foliage), and out of the generic HISM base as much as possible.
Deprecated a couple of HISM methods that are currently only used by grass in preparation to move them to the new subclass.
#rb jeremy.moore
#preflight 62630191cf17922036da1d5f
#ROBOMERGE-AUTHOR: jamie.hayes
#ROBOMERGE-SOURCE: CL 19870897 via CL 19871939 via CL 19873152
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v940-19807014)
[CL 19875905 by jamie hayes in ue5-main branch]
Also fix an issue where WPO would be disabled for Nanite grass if `r.OptimizedWPO=1`.
#rb jeremy.moore
#preflight 625ec3969c09ef439d969009
#ROBOMERGE-AUTHOR: jamie.hayes
#ROBOMERGE-SOURCE: CL 19809053 via CL 19809068 via CL 19809116
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v939-19570697)
[CL 19812170 by jamie hayes in ue5-main branch]
This allows cached data to be based on expressions that are active/connected
#rb none
#jira none
#preflight 621fce7831454c90cc079dd2
[CL 19227403 by Ben Ingram in ue5-main branch]
Submitted on behalf of fred.kimberley
#rb andy.davidson
#preflight 61f8729a5a026d2d19bb9ca6
#preflight 61f87a025a026d2d19be76ed
#ROBOMERGE-OWNER: andrew.davidson
#ROBOMERGE-AUTHOR: andrew.davidson
#ROBOMERGE-SOURCE: CL 18802361 in //UE5/Release-5.0/... via CL 18802891 via CL 18821557
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v908-18788545)
[CL 18821641 by andrew davidson in ue5-main branch]
#preflight 61f277cbaf74b68515c0bd64
#ROBOMERGE-AUTHOR: andrew.davidson
#ROBOMERGE-SOURCE: CL 18751911 in //UE5/Release-5.0/... via CL 18751924 via CL 18752067
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472)
[CL 18752076 by andrew davidson in ue5-main branch]
#lockdown michal.valient
#preflight revert for build breakage
#ROBOMERGE-OWNER: jon.nabozny
#ROBOMERGE-AUTHOR: guillaume.abadie
#ROBOMERGE-SOURCE: CL 17587410 via CL 17948832 via CL 18364580 via CL 18364616 via CL 18364712
#ROBOMERGE-BOT: STARSHIP (Release-Engine-Test -> Main) (v895-18170469)
[CL 18364771 by jon nabozny in ue5-main branch]
This represents UE4/Main @18073326, Release-5.0 @18081140 and Dev-PerfTest @18045971
[CL 18081471 by aurel cordonnier in ue5-release-engine-test branch]
