struct Enlighten::UE4::RectLight::CachedData

└>Enlighten::InputLightBase

Cached data for RectLight.

Variables

Name	Description
float BarnDoorCosAngle	Cosine of the angle of the barn doors.
float BarnDoorLength	Length of the barn doors.
Geo::v128 Direction_PlaneDistance	XYZ: World space x axis of light space. W: Distance to plane which passes through Position.
Geo::u32 HasVisibilityData	Has visibility data?
Geo::v128 Intensity	RGB intensity.
bool m_HasChanged	Whether the light has changed since it was last given to the extended direct lighting api.
const eLightType m_LightType	Type of input light corresponding to an eLightType enum value.
Geo::u64 m_Padding	Unused (this class is usually extended by one that starts with multiple v128s)
Geo::v128 Position	World space position of the light.
Geo::v128 RightDirection_InvRadius	XYZ: World space y axis of light space. W: 1 / attenuation radius.
float SourceLength	Half height of the rectangle.
float SourceRadius	Half width of the rectangle.
Geo::v128 UpDirection_SqrRadius	XYZ: World space y axis of light space. W: squared attenuation radius.
const Geo::u8 * VisibilityData	Visibility data.
Geo::u64 VisibilityData64	Visibility data.

Functions

Name	Description
CachedData(const RectLight &, const void *)	Constructor.
Hash(Helpers::Hasher &, Geo::u32, Geo::u32)	Hash all members of the light data.
InputLightBase(eLightType)	Constructor.
InputLightBase(eLightType, bool)	Constructor.
IsIntersectingBox(const Geo::v128 &, const Geo::v128 &)	Test if the light intersects the specified bounding box.
IsIntersectingCluster(const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &)	Test if the lights intersects a single cluster. Additional normal vectors enable culling against direction.
IsIntersectingClusterGroup(const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &)	Test if the lights intersects a group of clusters bounding box. Additional normal vectors enable culling against direction.
IsIntersectingSystem(const Geo::v128 &, const Geo::v128 &)	Test if the light intersects the systems bounding box.
ShadeFourSamples(const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, Geo::u32, Geo::v128 &, Geo::v128 &, Geo::v128 &, Geo::v128 &)	Shade the four samples and return the individual colours.
ShadeQuad(const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, Geo::u32, Geo::u32)	Shade the four samples and return the average as a single colour.
ShadeQuadIntensities(const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &, const Geo::v128 &)	Function to shade four point with 4 normals.

Enlighten::UE4::RectLight::CachedData::CachedData

public: CachedData
(
const RectLight & rectLight,
const void * perDusterVisibility
)

Constructor.

void Enlighten::UE4::RectLight::CachedData::Hash

public: void Hash
(
Helpers::Hasher & hash,
Geo::u32 clusterVisSize,
Geo::u32 quadVisSize
)

Hash all members of the light data.

Enlighten::InputLightBase::InputLightBase

protected: InputLightBase
(
eLightType lightType
)

Constructor.

Enlighten::InputLightBase::InputLightBase

protected: InputLightBase
(
eLightType lightType,
bool hasChanged
)

Constructor.

GEO_CONTROLLED_INLINE bool Enlighten::UE4::RectLight::CachedData::IsIntersectingBox

public: GEO_CONTROLLED_INLINE bool IsIntersectingBox
(
const Geo::v128 & bbMin,
const Geo::v128 & bbMax
) const

Test if the light intersects the specified bounding box.

GEO_CONTROLLED_INLINE bool Enlighten::UE4::RectLight::CachedData::IsIntersectingCluster

public: GEO_CONTROLLED_INLINE bool IsIntersectingCluster
(
const Geo::v128 & bbMin,
const Geo::v128 & bbMax,
const Geo::v128 & minNormalFlipped,
const Geo::v128 & maxNormalFlipped
) const

Test if the lights intersects a single cluster. Additional normal vectors enable culling against direction.

GEO_CONTROLLED_INLINE bool Enlighten::UE4::RectLight::CachedData::IsIntersectingClusterGroup

public: GEO_CONTROLLED_INLINE bool IsIntersectingClusterGroup
(
const Geo::v128 & bbMin,
const Geo::v128 & bbMax,
const Geo::v128 & minNormalFlipped,
const Geo::v128 & maxNormalFlipped
) const

Test if the lights intersects a group of clusters bounding box. Additional normal vectors enable culling against direction.

GEO_CONTROLLED_INLINE bool Enlighten::UE4::RectLight::CachedData::IsIntersectingSystem

public: GEO_CONTROLLED_INLINE bool IsIntersectingSystem
(
const Geo::v128 & bbMin,
const Geo::v128 & bbMax
) const

Test if the light intersects the systems bounding box.

GEO_CONTROLLED_INLINE void Enlighten::UE4::RectLight::CachedData::ShadeFourSamples

public: GEO_CONTROLLED_INLINE void ShadeFourSamples
(
const Geo::v128 & positionsX,
const Geo::v128 & positionsY,
const Geo::v128 & positionsZ,
const Geo::v128 & normalsX,
const Geo::v128 & normalsY,
const Geo::v128 & normalsZ,
Geo::u32 sampleIdx,
Geo::v128 & colourOut0,
Geo::v128 & colourOut1,
Geo::v128 & colourOut2,
Geo::v128 & colourOut3
) const

Shade the four samples and return the individual colours.

GEO_CONTROLLED_INLINE Geo::v128 Enlighten::UE4::RectLight::CachedData::ShadeQuad

public: GEO_CONTROLLED_INLINEGeo::v128 ShadeQuad
(
const Geo::v128 & positionsX,
const Geo::v128 & positionsY,
const Geo::v128 & positionsZ,
const Geo::v128 & normalsX,
const Geo::v128 & normalsY,
const Geo::v128 & normalsZ,
Geo::u32 clusterIdx,
Geo::u32 quadIdx
) const

Shade the four samples and return the average as a single colour.

GEO_CONTROLLED_INLINE Geo::v128 Enlighten::UE4::RectLight::CachedData::ShadeQuadIntensities

public: GEO_CONTROLLED_INLINEGeo::v128 ShadeQuadIntensities
(
const Geo::v128 & positionsX,
const Geo::v128 & positionsY,
const Geo::v128 & positionsZ,
const Geo::v128 & normalsX,
const Geo::v128 & normalsY,
const Geo::v128 & normalsZ,
const Geo::v128 & visibility
) const

Function to shade four point with 4 normals.

The quad idx and cluster idx can be used for looking up visibility in the visibility buffer. The return values are the intensities of the four samples in each channel of the v128

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