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class Enlighten UE4 UnrealDirectionalLight

    This is the documentation for Enlighten.

    class Enlighten UE4 UnrealDirectionalLight

    Sept 09, 2025

    class Enlighten::UE4::UnrealDirectionalLight

        └>Enlighten::InputLightBase

    A directional light for UE4.

    It functions almost the same as enlighten directional light expect require visibility data from runtime

    Classes

    Name Description
    Enlighten::UE4::UnrealDirectionalLight::CachedData

    Cached data for DirectionalLight.

    Variables

    Name Description
    Geo::v128 m_Direction

    World space direction of light.

    bool m_HasChanged

    Whether the light has changed since it was last given to the extended direct lighting api.

    Geo::v128 m_Intensity

    RGB intensity of the light (linear space).

    const eLightType m_LightType

    Type of input light corresponding to an eLightType enum value.

    float m_MaximumDistance

    The maximum distance from the camera at which systems are affected by this light.

    Geo::u64 m_Padding

    Unused (this class is usually extended by one that starts with multiple v128s)

    Functions

    Name Description
    DistanceFilter(float)

    Return true if this light affects a system at the specified distance from the viewer.

    InputLightBase(eLightType, bool)

    Constructor.

    InputLightBase(eLightType)

    Constructor.


    GEO_CONTROLLED_INLINE bool Enlighten::InputLightBase::DistanceFilter

    public: GEO_CONTROLLED_INLINE bool DistanceFilter
    (
        float viewDistance
    ) const

    Return true if this light affects a system at the specified distance from the viewer.


    Enlighten::InputLightBase::InputLightBase

    protected: InputLightBase
    (
        eLightType lightType,
        bool hasChanged
    )

    Constructor.


    Enlighten::InputLightBase::InputLightBase

    protected: InputLightBase
    (
        eLightType lightType
    )

    Constructor.

    , multiple selections available,
    Enlighten API 4.03 Documentation
    Results will update as you type.
    • class Enlighten SetProbeSetTransformInfo
    • class Enlighten SetTransparencySamplePositionOffsetInfo
    • class Enlighten SetVisibilityBitsInfo
    • class Enlighten SolveBounceTask
    • class Enlighten SortedLights
    • class Enlighten SphereVolume
    • class Enlighten Spotlight
    • class Enlighten SystemAlbedoData
    • class Enlighten SystemDependencies
    • class Enlighten SystemGrouping
    • class Enlighten TaskProcessor
    • class Enlighten TransparencyWorkspace
    • class Enlighten Triangle2D
    • class Enlighten TriggerVolumeTransparencyGeneric
    • class Enlighten UpdateEnvironmentInfo
    • class Enlighten UpdateLightCommandGeneric
    • class Enlighten UpdateLightInfo
    • class Enlighten UpdateLightOptions
    • class Enlighten UpdateManagerLight
    • class Enlighten UpdateManagerProperties
    • class Enlighten UpdateManagerWorkerProperties
    • class Enlighten Vertex2D
    • class Enlighten VisibilityBuffer
    • class Enlighten WorkerFunctionCommand
    • class Enlighten WorkerFunctionParameterCommand
    • class Enlighten WorkerFunctionTwoParametersCommand
    • class Enlighten WorkerFunctorCommand
    • class Enlighten WorkerObjectFunctionCommand
    • class Enlighten WorkerThreadData
    • class Enlighten WorkspaceAllocator
    • namespace Enlighten Errors
    • namespace Enlighten Helpers
    • namespace Enlighten Iff
    • namespace Enlighten InputLightingValidation
    • namespace Enlighten Itt
    • namespace Enlighten OutputTextureState
    • namespace Enlighten UE4
      • class Enlighten UE4 FourVec3s
      • class Enlighten UE4 RectLight
      • class Enlighten UE4 UE4InputLight
      • class Enlighten UE4 UnrealDirectionalLight
        • struct Enlighten UE4 UnrealDirectionalLight CachedData
      • class Enlighten UE4 UnrealDirectionalLightFunction
      • struct Enlighten UE4 InverseSquareFalloffModel
      • struct Enlighten UE4 UnrealFalloffModel
    • namespace Enlighten Version
    • struct Enlighten AllFilter
    • struct Enlighten BakeInputTexture
    • struct Enlighten CachedLightSelector
    • struct Enlighten CachedLightWriter
    • struct Enlighten CanQuickShade
    • struct Enlighten CanQuickShade< LIGHT_TYPE_DIRECTIONAL_LIGHT >
    • struct Enlighten CountLightSizeVisitor
    • struct Enlighten CullCluster
    • struct Enlighten CullClusterGroup
    • struct Enlighten CullingIterator
    • struct Enlighten CullingIterator< LIGHT_TYPE_INVALID, Culler >
    • struct Enlighten CullSystem
    • struct Enlighten ExcludeQuickShadeFilter
    • struct Enlighten HashLightVisitor
    • struct Enlighten InstanceDescMinimal
    • struct Enlighten LightSelector
    • struct Enlighten LightTypeInfo
    • struct Enlighten NullSurroundingsSampler
    • struct Enlighten PipelineInstanceMaterial
    • struct Enlighten PipelineMaterial
    • struct Enlighten PipelineRadiosityProperties
    • struct Enlighten PipelineWorldAxes
    • struct Enlighten PixelBarycentricWeights
    • struct Enlighten PixelCoord
    • struct Enlighten PointProjectionVertex
    • struct Enlighten PppiAtlasFootprint
    • struct Enlighten PppiAtlasMaxima
    • struct Enlighten PppiAtlasUpdateData
    • struct Enlighten PppiAtlasUpdateRequirements
    • struct Enlighten PppiClipmapUpdateData
    • struct Enlighten PppiClipmapUpdateRequirements
    • struct Enlighten PppiConfiguration
    • struct Enlighten PppiIrradiance
    • struct Enlighten PppiIrradiance16
    • struct Enlighten PppiOutputTextureRequirements
      Calendars
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