* Use FMatrix as the conversion to FTransform can't handle non uniform scaling
#rb patrick.enfedaque
#preflight 63f7bb45dd78dd50f60568bb
#tests built HLOD for Asteria, no more floating pieces (a few neon signs were using ISMCs with non-uniform scaling)
[CL 24397797 by sebastien lussier in ue5-main branch]
FHierarchicalLODUtilities::BuildStaticMeshForLODActor() - When adding impostors, should use the component transform rather than the actor transform
PR #8624: HLOD imposters take component instead of actor transform (Contributed by ToniSeifert)
#rb patrick.enfedaque
[CL 24393186 by ToniSeifert in ue5-main branch]
* Refactored ExportToRawMesh function to allow exporting one mesh section per component
* Implemented support for UV mappings usually provided by the landscape vertex factory in the non-Nanite case (as per the LandscapeLayerCoords material expression + others)
* For Nanite landscape materials, the relevant UV channels are :
** Texcoords0-2 : TerrainCoordMapping_XY, TerrainCoordMapping_XZ, TerrainCoordMapping_YZ (note : TerrainCoordMapping_XZ doesn't work ATM because texcoords1 seems to be a special case...)
** Texcoords3 : WeightmapUV
** Texcoords4 : LightmapUV (not implemented by ExportToRawMesh yet and not supported by Nanite meshes ATM : max 4 UV channels)
** Texcoords5 : HeightmapUV (implemented by ExportToRawMesh but not supported by Nanite meshes ATM : max 4 UV channels)
* Nanite landscape meshes now have 1 polygroup per component, with the proper landscape material instance being assigned to it
* Since Nanite meshes are capped at 64 meshes per section, Nanite landscape mesh will now fail to build on proxies sporting more than this amount of components. This is a first implementation and can be fixed later by adding as many Nanite landscape components as needed
* Implemented some missing virtual overrides on FLandscapeMaterialResource leading to landscape material instances potentially being used for non-landscape usages (hair, etc.)
* Fixed LandscapeNaniteComponent not being attached to the root component (and the mesh being exported in world space coordinates), leading to it not following when moving the actor
* Added NaniteLODIndex property in ALandscape to be able to tweak the LOD level used when generating the Nanite meshes. It's mostly a debug feature to test the LODLevel > 0 landscape mesh export and to accelerate the Nanite landscape mesh generation since you usually want Nanite to be the most defined mesh possible
* All Nanite landscape meshes will be auto-invalidated by this change
#rb roey.borsteinas, graham.wihlidal
#preflight 6365e2a2882365b8590525ac
#lockdown marc.audy
[CL 23069843 by jonathan bard in ue5-main branch]
HLOD meshes were sometime referencing MaterialInstanceDynamic, that aren't assets (!RF_Standalone)
* MIDs are usually outered to the components they are assigned to
* Duplicate MIDs and outer them to the generated HLOD UStaticMesh
#rb jeanfrancois.dube
#preflight 6308dfc392620e5ec3b61103
[CL 21597931 by sebastien lussier in ue5-main branch]
* Removed deprecated or dead code paths
* Simplified build system setup for physics support
* Deprecated build system flags and unsupported macros
#jira none
#rb Chris.Caulfield, Kriss.Gossart
#preflight 62963ec0fe779f23c8ea0c5e
[CL 20450744 by Benn Gallagher in ue5-main branch]
Deprecation of FPlatformMath::IsNegative*() functions.
New FPlatformMath::IsNegativeOrNegativeZero().
Fix up of existing usage to either use < 0 or IsNegativeOrNegativeZero where appropriate.
Fixes for aliasing problems in various FMath functions, including IsNegative*().
Resubmission of CL# 19833778 with fixes for problematic Mac and Android toolchains, causing spurious errors while building PCHs.
#rb devin.doucette, charles.bloom, will.damon, chris.babcock
#jira UE-148435
#preflight 6260764d91376845adf9893f
[CL 19840896 by Steve Robb in ue5-main branch]
Deprecation of FPlatformMath::IsNegative*() functions.
New FPlatformMath::IsNegativeOrNegativeZero().
Fix up of existing usage to either use < 0 or IsNegativeOrNegativeZero where appropriate.
Fixes for aliasing problems in various FMath functions, including IsNegative*().
#rb devin.doucette, charles.bloom
#jira UE-148435
#preflight 625ece48f16e0d2accab15d9
[CL 19833778 by Steve Robb in ue5-main branch]
The function would remap polygroups of the source meshes, then use FStaticMeshOperations::AppendMeshDescription() which would also mess with the groups.
Providing a polygroup delegate to AppendMeshDescription() solves the issue.
#rb luc.eygasier
#preflight 6214e6de30639b44d2e2976f
#ROBOMERGE-AUTHOR: sebastien.lussier
#ROBOMERGE-SOURCE: CL 19073080 via CL 19086547 via CL 19086625 via CL 19088170
#ROBOMERGE-BOT: UE5 (Release-Engine-Staging -> Main) (v921-19075845)
[CL 19131399 by sebastien lussier in ue5-main branch]
#jira UE-122078
#rb Andrew.Davidson, Colin.McGinley
#preflight standard build
#ROBOMERGE-AUTHOR: fred.kimberley
#ROBOMERGE-SOURCE: CL 18817999 in //UE5/Release-5.0/... via CL 18818012 via CL 18822871
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v910-18824042)
[CL 18824721 by fred kimberley in ue5-main branch]
Submitted on behalf of fred.kimberley
#rb andy.davidson
#preflight 61f8719ea6632a34f35e654b
#ROBOMERGE-AUTHOR: andrew.davidson
#ROBOMERGE-SOURCE: CL 18801709 in //UE5/Release-5.0/... via CL 18802160 via CL 18821533
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v908-18788545)
[CL 18821619 by andrew davidson in ue5-main branch]
FLinearColor has also been modified to make any double->float conversions explicit. Previously all 3D TVector versions were allowed to be implicit and thus could convert TVector<double> => FLinearColor => TVector4<float>.
Fixed up all engine and game casts. Added "//LWC_TODO: precision loss" around any explicit casts that previously were silently explicit and we may need to revisit for precision loss analysis.
#jira UE-122085
#rb Ben.Ingram, Andrew.Davidson
#preflight 61f24af473238441cb7bb0f1
#ROBOMERGE-AUTHOR: zak.middleton
#ROBOMERGE-SOURCE: CL 18751249 in //UE5/Release-5.0/... via CL 18751253 via CL 18751319
#ROBOMERGE-BOT: UE5 (Release-Engine-Test -> Main) (v903-18687472)
[CL 18751326 by zak middleton in ue5-main branch]
