content: maps + catalogue + metahumans/materials + benchmark refs; gitignore run-artifacts

Real asset-repo content changes. Excludes 461MB output/ videos + *.bak/*.codex-backup (now gitignored). CesiumForUnreal left fully intact.

.gitignore

@@ -24,3 +24,8 @@ Thumbs.db
 
 # Crashpad
 CrashReportClient/
+
+# Run artifacts / rendered videos / backups — keep out of asset history
+output/
+*.bak
+*.codex-backup-*

Config/DefaultEditorPerProjectUserSettings.ini

@@ -2,4 +2,4 @@
 bAutoloadCheckedOutPackages=True
 
 [SourceControl.SourceControlSettings]
-Provider=Perforce
+Provider=None

Config/DefaultEngine.ini

@@ -110,6 +110,10 @@ r.RayTracing=True
 r.Lumen.HardwareRayTracing=True
 r.Lumen.HardwareRayTracing.LightingMode=2
 r.Lumen.TranslucencyReflections.FrontLayer.EnableForProject=True
+r.GPUSkin.Support16BitBoneIndex=True
+r.GPUSkin.UnlimitedBoneInfluences=True
+r.SkinCache.DefaultBehavior=0
+SkeletalMesh.UseExperimentalChunking=1
 
 [/Script/Engine.CollisionProfile]
 +Profiles=(Name="WaterBodyCollision",CollisionEnabled=QueryOnly,ObjectTypeName="WorldDynamic",CustomResponses=((Channel="WorldStatic",Response=ECR_Overlap),(Channel="WorldDynamic",Response=ECR_Overlap),(Channel="Pawn",Response=ECR_Overlap),(Channel="PhysicsBody",Response=ECR_Overlap),(Channel="Vehicle",Response=ECR_Overlap),(Channel="Destructible",Response=ECR_Overlap)))
@@ -128,3 +132,29 @@ ConnectionType=USBOnly
 bUseManualIPAddress=False
 ManualIPAddress=
 
+; ── Runtime navigation (added for PIE walking) ──────────────────────────
+; UE5.7 RecastNavMesh lives in the NavigationSystem module, NOT Engine —
+; [/Script/Engine.RecastNavMesh-Default] is the UE4 path and is silently
+; ignored in 5.7. Engine default RuntimeGeneration=Static means the navmesh
+; never rebuilds as actors stream into a PIE/runtime world; Dynamic is what
+; lets a freshly-built open-data city become walkable in PIE.
+[/Script/NavigationSystem.NavigationSystemV1]
+bAutoCreateNavigationData=True
+bSpawnNavDataInNavBoundsLevel=True
+bAllowClientSideNavigation=True
+bShouldDiscardSubLevelNavData=False
++SupportedAgents=(Name="Default",NavDataConfigClass="/Script/NavigationSystem.RecastNavMesh",AgentRadius=35.000000,AgentHeight=144.000000,AgentStepHeight=35.000000,NavWalkingSearchHeightScale=0.500000,PreferredNavData="/Script/NavigationSystem.RecastNavMesh")
+
+[/Script/NavigationSystem.RecastNavMesh-Default]
+RuntimeGeneration=Dynamic
+bRebuildAtRuntimeEnabled=True
+AgentRadius=35.000000
+AgentHeight=144.000000
+AgentMaxStepHeight=35.000000
+AgentMaxSlope=44.000000
+TileSizeUU=1000.000000
+CellSize=19.000000
+CellHeight=10.000000
+MergeRegionSize=400.000000
+MinRegionArea=0.000000
+MaxSimplificationError=1.300000