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  3. FLightMap2D

FLightMap2D

A 2D array of incident lighting data.

API > API/Runtime > API/Runtime/Engine

Inheritance Hierarchy

References

   
Module Engine
Header /Engine/Source/Runtime/Engine/Public/LightMap.h
Include #include "LightMap.h"

Syntax

class FLightMap2D : public FLightMap

Remarks

A 2D array of incident lighting data.

Variables

  Type Name Description
Public variable FVector4f[NUM_STORED_LIGHTMAP_COEF] AddVectors Bias value to apply to the coefficients.
Public variable TObjectPtr< ULightMapTexture2D > AOMaterialMaskTexture  
Public variable bool[4] bShadowChannelValid Tracks which of the 4 channels has valid texture data.
Public variable FVector2D CoordinateBias The bias which is applied to the light-map coordinates before sampling the light-map textures.
Public variable FVector2D CoordinateScale The scale which is applied to the light-map coordinates before sampling the light-map textures.
Public variable FVector4f InvUniformPenumbraSize Stores the inverse of the penumbra size, normalized.
Public variable FVector4f[NUM_STORED_LIGHTMAP_COEF] ScaleVectors A scale to apply to the coefficients.
Public variable TObjectPtr< UShadowMapTexture2D > ShadowMapTexture  
Public variable TObjectPtr< ULightMapTexture2D > SkyOcclusionTexture  
Public variable TObjectPtr< ULightMapTexture2D >[2] Textures The textures containing the light-map data.
Public variable TObjectPtr< ULightMapVirtualTexture2D >[2] VirtualTextures The virtual textures containing the light-map data.

Constructors

  Type Name Description
Public function    
Public function  

FLightMap2D ( bool InAllowHighQualityLightMaps
)

  
Protected function  

FLightMap2D ( const TArray< FGuid >& InLightGuids
)

  

Functions

  Type Name Description
Public function Static TRefCountPtr< FLightMap2D >

AllocateInstancedLightMap ( UObject* LightMapOuter,
UInstancedStaticMeshComponent* Component,
TArray< TUniquePtr< FQuantizedLightmapData > > SourceQuantizedData,
TArray< TMap< ULightComponent*, TUniquePtr< FShadowMapData2D > > >&& InstancedShadowMapData,
UMapBuildDataRegistry* Registry,
FGuid MapBuildDataId,
const FBoxSphereBounds& Bounds,
ELightMapPaddingType InPaddingType,
ELightMapFlags LightmapFlags
)

 Allocates texture space for the light-map and stores the light-map's raw data for deferred encoding.
Public function Static TRefCountPtr< FLightMap2D >

AllocateLightMap ( UObject* LightMapOuter,
FQuantizedLightmapData*& SourceQuantizedData,
const TMap< ULightComponent*, FShadowMapData2D* >& SourceShadowMapData,
const FBoxSphereBounds& Bounds,
ELightMapPaddingType InPaddingType,
ELightMapFlags InLightmapFlags
)

 Allocates texture space for the light-map and stores the light-map's raw data for deferred encoding.
Public function Static int32

EncodeShadowTexture ( const FStaticLightingBuildContext* LightingContext,
FLightMapPendingTexture& PendingTexture,
TArray< TArray< FFourDistanceFieldSamples > >& MipData
)

 Constructs mip maps for a single shadowmap texture.
Public function Static void

EncodeTextures ( const FStaticLightingBuildContext* LightingContext,
bool bLightingSuccessful,
bool bMultithreadedEncode
)

 Executes all pending light-map encoding requests.
Public function Const UTexture2D *  
Public function Const const FVector2D &  
Public function Const const FVector2D &  
Public function Const void

GetReferencedTextures ( TArray< UTexture2D* >& OutTextures
)

  
Public function Const UTexture2D * Returns SkyOcclusionTexture.
Public function Static bool  
Public function Const const UTexture2D *

GetTexture ( uint32 BasisIndex
)

 Returns the texture containing the RGB coefficients for a specific basis.
Public function UTexture2D *

GetTexture ( uint32 BasisIndex
)

  
Public function Const ULightMapVirtualTexture2D *

GetVirtualTexture ( uint32 BasisIndex
)

  
Public function Const bool

IsValid ( uint32 BasisIndex
)

 Returns whether the specified basis has a valid lightmap texture or not.
Public function Const bool  
Public function Static void

SetStatusUpdate ( bool bInEnable
)

 Call to enable/disable status update of LightMap encoding

Overridden from FLightMap

  Type Name Description
Public function Virtual void  
Public function Virtual Const FLightMapInteraction  
Public function Virtual FLightMap2D * Runtime type casting.
Public function Virtual Const const FLightMap2D * Runtime type casting.
Public function Virtual Const FShadowMapInteraction  
Public function Virtual void  

Constants

Name Description
bUpdateStatus If true, update the status when encoding light maps

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