* UVs in lightmap density view were shifting after building lighting. Fixed by considering the padding even if lightmap data is invalid
* Auto generated lightmap UV was snapping charts to the whole padded lightmap instead of the actual valid center region. Fixed by subtracing 2 texels from the packing resolution
* Also fixed some merging conflicts of auto gen
#rb none
[FYI] brian.karis, daniel.wright
#jira UE-64923
#ROBOMERGE-OWNER: robert.manuszewski
#ROBOMERGE-AUTHOR: yujiang.wang
#ROBOMERGE-SOURCE: CL 5320218 in //UE4/Release-4.22/... via CL 5337165
#ROBOMERGE-BOT: CORE (Main -> Dev-Core)
[CL 5402985 by yujiang wang in Dev-Core branch]
UV packing issue for geometries with high chart count
#jira UE-69450
#jira UE-56602
#jira UE-56555
#jira UEENT-322
#rb JeanMichel.Dignard
#ROBOMERGE-SOURCE: CL 4923742 in //UE4/Release-4.22/...
#ROBOMERGE-BOT: RELEASE (Release-4.22 -> Main)
[CL 4923746 by johan duparc in Main branch]
- Added support for compression plugins
- Removed the Custom compression concept, now using plugins properly
- Modified UnrealPak to use FNames, and allow for multiple compression methods (fallbacks on error or unavailability, etc)
- Added project settings for compression method selection for UnrealPak, and additional settings to be passed to UnrealPak (for instance, to control compression size/speed, etc)
- Deprecated a bunch of old function calls
- Improved pak file "old format" reading ability
- Brought over some changes from Fortnite for pak file encryption and memory savings
- Implemented a parallel compression pull request (#4129) to speed up pak file compression
#jira UE-51294
#rb ben.marsh
[CL 4480944 by Josh Adams in Dev-Core branch]
Add a generic opaque mesh view interface FLayoutUV::IMeshView to abstract mesh data access and allow FLayoutUV to be used with any mesh type in any module.
Replaced few instances of using an old version of overlapping corners data structure (multi-map) with new specialized FOverlappingCorners container.
#rb Alexis.Matte
#rb Brian.Karis
[CL 4242975 by Yuriy ODonnell in Dev-Editor branch]
- Refactor to put UStaticMesh Mesh Descriptions in a separate object which is not loaded by default, but which can be requested when needed. This needs to be kept in sync with the number of SourceModel LODs.
- Various refactors to import/building.
- Changed UMeshDescription to FMeshDescription, and made its preferred semantics pass-by-reference rather than by pointer.
- Deprecated UMeshDescription.
#rb Alexis.Matte
#jira
#ROBOMERGE-SOURCE: CL 4135475 in //UE4/Release-4.20/...
#ROBOMERGE-BOT: RELEASE (Release-4.20 -> Release-Staging-4.20)
#ROBOMERGE-AUTHOR: richard.talbotwatkin
[CL 4135477 by richard talbotwatkin in Staging-4.20 branch]
