* All valid UV channels must be kept during material baking
#tests enginetest
#rb JeanFrancois.Dube
[CL 35033880 by sebastien lussier in ue5-main branch]
* Reversed index buffers are used to handle negative scaling transforms. Since HLOD meshes will never be used with such transforms, we can get rid of these buffers and reduce memory usage.
#jira UE-216169
#rb JeanFrancois.Dube
[CL 34065502 by sebastien lussier in ue5-main branch]
* Shielded the utility methods from bad input
* Disabled the Bake Material button in case the operation isn't possible.
#jira UE-209285
#rb JeanFrancois.Dube
[CL 32576630 by sebastien lussier in ue5-main branch]
* Forward custom primitive data info to material baking
* Added Custom Primitive Data case to material baking engine test
* Also updated broken Material Baking tests screenshots as subtle differences are now occuring on shadows... Disabled shadows from the map light source to minimize noise in future test results
#rb JeanFrancois.Dube
#virtualized
[CL 32298478 by sebastien lussier in ue5-main branch]
* Required a source mesh with two sections with identical materials
* Occured only when created a merged mesh without baking down textures
#jira UE-201699
#rb Patrick.Enfedaque
[CL 30245768 by sebastien lussier in ue5-main branch]
*Added FPrimitiveSceneDesc, a structure you can initialize with a description of the primitive you're trying to Add/Remove/Update in the FScene
-Added entry points in FSceneInterface to do those operations, legacy entry points using UPrimitiveComponent are untouched.
-The code that executes those operations in FScene has been refactored to be shared between the two entry points as much as possible to lessen the additional maintenance burden.
*Added FPrimitiveSceneProxyDesc/FStaticMeshSceneProxyDesc/FInstancedStaticMeshSceneProxyDesc, structures that hold all the necessary information to create a FPrimitiveSceneProxy/FStaticMeshSceneProxy/FInstancedStaticMeshSceneProxy without depending on AActors or UPrimitiveComponent.
-Those structures can be initialized by constructing them with the corresponding UPrimitiveComponents, or by constructing their default versions and initializing the desired fields.
-Creation code for FPrimitiveSceneProxy/FStaticMeshSceneProxy/FInstancedStaticMeshSceneProxy now takes all its info from those desc structures. They are created on demand during scene proxy creation for UPrimitiveComponents. This means no additional memory, and all serialized assets & blueprints are unaffected.
*Added IPrimitiveComponent/IStaticMeshComponent interfaces
-These allow for some editor-only interactions occurring during proxy creation, and serve as a common interface for some code that expected to manipulate UPrimitiveComponent/UStaticMeshComponents. For example FObjectCacheEventSink / FObjectCacheContext now uses those interfaces to associate the resources between various users and interactions like proxy recreation on shader/mesh changes occur through those interfaces.
* Misc
-Moved scene primitive related member variables into a new structure (FPrimitiveSceneInfoData) to facilitate code sharing and implementations of various related functionality (like SetLastRenderTime).
-Changed ObjectCacheContext to store associations between resources and components using component interfaces so that other systems creating proxies have the proper behaviors when resource changes require proxy recreation.
-Added natvis support so that component interfaces to UPrimitiveComponent/UStaticMeshComponent display the component ptr for easier debugging.
-Changed FMotionVectorSimulation to use UObject* instead of UPrimitiveComponent*, it was already using this internally
-Templatized some nanite helpers like ShouldCreateNaniteProxy & AuditMaterials since we need to use them from both UPrimitiveComponent & FPrimitiveSceneProxyDesc and it'll help make sure we keep them in sync.
#jira UE-191990
#rb Zach.Bethel, Ola.Olsson, Jason.Nadro, Krzysztof.Narkowicz
[CL 27200716 by dominic couture in ue5-main branch]
* Added a FBoxSphereBounds::Builder class to help avoid these kind of issues
#rb jeanfrancois.dube, patrick.enfedaque
[FYI] Graham.Wihlidal
#preflight 6419e677ec01de1664d3e95c
[CL 24739078 by sebastien lussier in ue5-main branch]
