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> Unreal Engine API Reference > Runtime > Renderer > FIndirectLightingCacheAllocation

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FIndirectLightingCacheAllocation

Data used to track a primitive's allocation in the volume texture atlas that stores indirect lighting.

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References

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

Syntax

class FIndirectLightingCacheAllocation

Remarks

Data used to track a primitive's allocation in the volume texture atlas that stores indirect lighting.

Variables

	Name	Description
FVector	Add	Add factor for calculating UVs from position.
int32	AllocationTexelSize	Size in texels of the allocation into the volume texture atlas.
bool	bHasEverUpdatedSingleSample	Whether SingleSamplePacked has ever been populated with valid results, used to initialize.
bool	bIsDirty	Whether the primitive allocation is dirty and should be updated regardless of having moved.
bool	bPointSample	Whether this allocation is a point sample and therefore was not put into the volume texture atlas.
bool	bUnbuiltPreview
float	CurrentDirectionalShadowing	Current shadowing of the stationary directional light.
FVector4	CurrentSkyBentNormal	Current directional occlusion of the sky.
FVector	MaxUV	Used to clamp lookup UV to a valid range for pixels outside the object's bounding box.
FIntVector	MinTexel	Block index in the volume texture atlas, can represent unallocated.
FVector	MinUV	Used to clamp lookup UV to a valid range for pixels outside the object's bounding box.
FVector	Scale	Scale factor for calculating UVs from position.
FVector4[3]	SingleSamplePacked0	Current SH sample used when lighting the entire object with one sample.
FVector4[3]	SingleSamplePacked1
FVector4	SingleSamplePacked2
FVector	SingleSamplePosition	Current position of the single lighting sample. Used for interpolation over time.
float	TargetDirectionalShadowing	Target shadowing of the stationary directional light.
FVector	TargetPosition	Position at the new single lighting sample. Used for interpolation over time.
FVector4[3]	TargetSamplePacked0	SH sample at the new single lighting sample position. Used for interpolation over time.
FVector4[3]	TargetSamplePacked1
FVector4	TargetSamplePacked2
FVector4	TargetSkyBentNormal	Target directional occlusion of the sky.

Constructors

	Name	Description
	FIndirectLightingCacheAllocation()

Functions

		Name	Description
	bool	IsValid()
	void	SetDirty()
	void	SetParameters ( FIntVector InMinTexel, int32 InAllocationTexelSize, FVector InScale, FVector InAdd, FVector InMinUV, FVector InMaxUV, bool bInPointSample, bool bInUnbuiltPreview )

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