Nanite always generates LZ compressed data. All platforms share the same DDC key. Platforms that support hardware LZ decompress during platform-specific serialization.
Added LZ hardware decompression to platform properties and target platform.
#fyi Brian.Karis
#rb Graham.Wihlidal
[CL 14277717 by Rune Stubbe in ue5-main branch]
Fixed tangents not being derived resulting in no welding for mip0 of Nanite
Ignore bHasColor from mesh desc and check if any non-white.
Misc clean up
#rb rune.stubbe
[CL 14223322 by Brian Karis in ue5-main branch]
-Fixed issue where Nanite data would disappear because of serialization issues.
-Fixed issue where Nanite data would be deserialized twice on load.
-Added assert to Nanite streaming to make sure RootPages are valid.
#rb Graham.Wihlidal
[CL 14212566 by Rune Stubbe in ue5-main branch]
Revived SharedImplicitsAttribute to correctly handle the type change.
Undid breaking of old assets on load.
Removed const casting from dynamic collection initialization and safely handle attribute upgrades during geometry collection serialization.
Fixed attempted copies of managed attributes of different types.
#rb Brice.Criswell
#jira
#ROBOMERGE-SOURCE: CL 12125198 in //UE4/Release-4.25/... via CL 12125214
#ROBOMERGE-BOT: RELEASE (Release-4.25Plus -> Main) (v659-12123632)
[CL 12140098 by benn gallagher in Main branch]
#rnx
#rb none
#ROBOMERGE-OWNER: ryan.durand
#ROBOMERGE-AUTHOR: ryan.durand
#ROBOMERGE-SOURCE: CL 10869210 via CL 10869511 via CL 10869900
#ROBOMERGE-BOT: (v613-10869866)
[CL 10870549 by ryan durand in Main branch]
#rb none
#jira ue-75850
#lockdown nick.penwarden
#ROBOMERGE-SOURCE: CL 8069683 in //UE4/Release-4.23/...
#ROBOMERGE-BOT: RELEASE (Release-4.23 -> Main) (v400-8057353)
[CL 8069685 by michael lentine in Main branch]
