Lightmass problems

Development Rendering
1

Hello there;

Im having trouble building the lighting on my project, any idea why?

Thanks in advance!

InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent was too big and it was automatically reduced. Consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
InstancedFoliageActor_0 The total lightmap size for this InstancedStaticMeshComponent is large, consider reducing the component’s lightmap resolution or number of mesh instances in this component
No importance volume found and the scene is so large that the automatically synthesized volume will not yield good results. Please add a tightly bounding lightmass importance volume to optimize your scene’s quality and lighting build times.
<None> === Lightmass crashed: ===
Assertion failed: (Index >= 0) & (Index < ArrayNum) [File:C:\Jenkins\workspace\SandstormBinaries\release-1.8\Engine\Source\Runtime\Core\Public\Containers/Array.h] [Line: 674]
Array index out of bounds: 23307 from an array of size 23307
0x00007ffa10e98137 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ff6e02acb88 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01ec9c2 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01f5b4b UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e0246ef5 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01fa4c9 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e0221462 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e023fe43 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e02a72e4 UnrealLightmass.exe!UnknownFunction ]
0x00007ffa87477034 KERNEL32.DLL!UnknownFunction ]
0x00007ffa8853cec1 ntdll.dll!UnknownFunction ]

0x00007ffa85f43e49 KERNELBASE.dll!UnknownFunction ]
0x00007ffa110d2ad6 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ffa110d5f27 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ffa10f045ed UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ffa10e95e05 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ffa10e98170 UnrealLightmass-Core.dll!UnknownFunction ]
0x00007ff6e02acb88 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01ec9c2 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01f5b4b UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e0246ef5 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e01fa4c9 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e0221462 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e023fe43 UnrealLightmass.exe!UnknownFunction ]
0x00007ff6e02a72e4 UnrealLightmass.exe!UnknownFunction ]
0x00007ffa87477034 KERNEL32.DLL!UnknownFunction ]
0x00007ffa8853cec1 ntdll.dll!UnknownFunction ]

2

You’re running out of memory because there’s large foliage actors in your scene and it’s trying to build lightmaps for them. If you have a large map then it might not be possible to bake the lighting and you’d need to use a realtime solution instead