FStaticMeshStaticLightingMesh Class Reference

#include <StaticMeshLight.h>

Inheritance diagram for FStaticMeshStaticLightingMesh:

Public Member Functions
	FStaticMeshStaticLightingMesh (const UStaticMeshComponent *InPrimitive, int32 InLODIndex, const TArray< ULightComponent * > &InRelevantLights)
	FStaticMeshStaticLightingMesh ()
virtual void	GetTriangle (int32 TriangleIndex, FStaticLightingVertex &OutV0, FStaticLightingVertex &OutV1, FStaticLightingVertex &OutV2) const
virtual void	GetTriangleIndices (int32 TriangleIndex, int32 &OutI0, int32 &OutI1, int32 &OutI2) const
virtual bool	ShouldCastShadow (ULightComponent *Light, const FStaticLightingMapping *Receiver) const
virtual bool	IsTriangleCastingShadow (uint32 TriangleIndex) const
virtual bool	IsControllingShadowPerElement () const
virtual bool	IsUniformShadowCaster () const
virtual FLightRayIntersection	IntersectLightRay (const FVector &Start, const FVector &End, bool bFindNearestIntersection) const
virtual bool	IsInstancedMesh () const override
Public Member Functions inherited from FStaticLightingMesh
ENGINE_API	FStaticLightingMesh (int32 InNumTriangles, int32 InNumShadingTriangles, int32 InNumVertices, int32 InNumShadingVertices, int32 InTextureCoordinateIndex, bool bInCastShadow, bool bInTwoSidedMaterial, const TArray< ULightComponent * > &InRelevantLights, const UPrimitiveComponent *const InComponent, const FBox &InBoundingBox, const FGuid &InSourceMeshGuid, const FGuid &InComponentGuid)
ENGINE_API	FStaticLightingMesh ()
virtual ENGINE_API void	Serialize (FArchive &Ar)
virtual	~FStaticLightingMesh ()
virtual void	GetShadingTriangle (int32 TriangleIndex, FStaticLightingVertex &OutV0, FStaticLightingVertex &OutV1, FStaticLightingVertex &OutV2) const
virtual void	GetShadingTriangleIndices (int32 TriangleIndex, int32 &OutI0, int32 &OutI1, int32 &OutI2) const
virtual const FGuid &	GetLightingGuid () const
Public Member Functions inherited from FRefCountedObject
	FRefCountedObject ()
virtual	~FRefCountedObject ()
	FRefCountedObject (const FRefCountedObject &Rhs)=delete
FRefCountedObject &	operator= (const FRefCountedObject &Rhs)=delete
FReturnedRefCountValue	AddRef () const
uint32	Release () const
uint32	GetRefCount () const

Public Attributes
TArray< FStaticLightingMesh * >	OtherLODs
Public Attributes inherited from FStaticLightingMesh
const int32	NumTriangles
const int32	NumShadingTriangles
const int32	NumVertices
const int32	NumShadingVertices
const int32	TextureCoordinateIndex
TArray< int32 >	VisibilityIds
const uint32	bCastShadow: 1
const uint32	bTwoSidedMaterial: 1
const TArray< ULightComponent * >	RelevantLights
TArray< FGuid >	RelevantLightsGuid
const UPrimitiveComponent *const	Component
FGuid	ComponentGuid
FBox	BoundingBox
FGuid	Guid
FGuid	SourceMeshGuid
TArray< TRefCountPtr< FStaticLightingMesh > >	OtherMeshLODs
uint32	HLODTreeIndex
uint32	HLODChildStartIndex
uint32	HLODChildEndIndex

Protected Member Functions
void	SetLocalToWorld (const FMatrix &InLocalToWorld)

Protected Attributes
const int32	LODIndex

Friends
class	FLightmassExporter

Detailed Description

Represents the triangles of one LOD of a static mesh primitive to the static lighting system.

Constructor & Destructor Documentation

FStaticMeshStaticLightingMesh() [1/2]

FStaticMeshStaticLightingMesh::FStaticMeshStaticLightingMesh	(	const UStaticMeshComponent *	InPrimitive,
		int32	InLODIndex,
		const TArray< ULightComponent * > &	InRelevantLights
	)

Initialization constructor.

FStaticMeshStaticLightingMesh() [2/2]

FStaticMeshStaticLightingMesh::FStaticMeshStaticLightingMesh

(

)

Member Function Documentation

GetTriangle()

void FStaticMeshStaticLightingMesh::GetTriangle ( int32  TriangleIndex, FStaticLightingVertex &  OutV0, FStaticLightingVertex &  OutV1, FStaticLightingVertex &  OutV2  ) const

virtual

Accesses a triangle.

Parameters

TriangleIndex	- The triangle to access.
OutV0	- Upon return, should contain the first vertex of the triangle.
OutV1	- Upon return, should contain the second vertex of the triangle.
OutV2	- Upon return, should contain the third vertex of the triangle.

Implements FStaticLightingMesh.

GetTriangleIndices()

void FStaticMeshStaticLightingMesh::GetTriangleIndices ( int32  TriangleIndex, int32 &  OutI0, int32 &  OutI1, int32 &  OutI2  ) const

virtual

Accesses a triangle's vertex indices.

Parameters

TriangleIndex	- The triangle to access.
OutI0	- Upon return, should contain the first vertex index of the triangle.
OutI1	- Upon return, should contain the second vertex index of the triangle.
OutI2	- Upon return, should contain the third vertex index of the triangle.

Implements FStaticLightingMesh.

IntersectLightRay()

FLightRayIntersection FStaticMeshStaticLightingMesh::IntersectLightRay ( const FVector &  Start, const FVector &  End, bool  bFindNearestIntersection  ) const

virtual

Checks if a line segment intersects the mesh.

Parameters

Start	- The start point of the line segment.
End	- The end point of the line segment.
bFindNearestIntersection	- Whether the nearest intersection is needed, or any intersection.

Returns

The intersection of the light-ray with the mesh.

Implements FStaticLightingMesh.

IsControllingShadowPerElement()

bool FStaticMeshStaticLightingMesh::IsControllingShadowPerElement ( ) const

virtual

Returns

true if the mesh wants to control shadow casting per element rather than per mesh.

Reimplemented from FStaticLightingMesh.

IsInstancedMesh()

virtual bool FStaticMeshStaticLightingMesh::IsInstancedMesh ( ) const

inlineoverridevirtual

Returns true if this mesh is an instanced mesh.

Implements FStaticLightingMesh.

IsTriangleCastingShadow()

bool FStaticMeshStaticLightingMesh::IsTriangleCastingShadow ( uint32  TriangleIndex ) const

virtual

Returns

true if the specified triangle casts a shadow.

Reimplemented from FStaticLightingMesh.

IsUniformShadowCaster()

bool FStaticMeshStaticLightingMesh::IsUniformShadowCaster ( ) const

virtual

Checks whether ShouldCastShadow will return true always.

Returns

true if ShouldCastShadow will return true always.

Reimplemented from FStaticLightingMesh.

SetLocalToWorld()

void FStaticMeshStaticLightingMesh::SetLocalToWorld ( const FMatrix &  InLocalToWorld )

protected

Sets the local to world matrix for this mesh, will also update LocalToWorldInverseTranspose

Parameters

InLocalToWorld

Local to world matrix to apply

Sets the local to world matrix for this mesh, will also update LocalToWorldInverseTranspose and determinant

Parameters

InLocalToWorld

Local to world matrix to apply

ShouldCastShadow()

bool FStaticMeshStaticLightingMesh::ShouldCastShadow ( ULightComponent *  Light, const FStaticLightingMapping *  Receiver  ) const

virtual

Determines whether the mesh should cast a shadow from a specific light on a specific mapping. This doesn't determine if the mesh actually shadows the receiver, just whether it should be allowed to.

Parameters

Light	- The light source.
Receiver	- The mapping which is receiving the light.

Returns

true if the mesh should shadow the receiver from the light.

Reimplemented from FStaticLightingMesh.

Friends And Related Symbol Documentation

FLightmassExporter

friend class FLightmassExporter

friend

Member Data Documentation

LODIndex

const int32 FStaticMeshStaticLightingMesh::LODIndex

protected

The LOD this mesh represents.

OtherLODs

TArray<FStaticLightingMesh*> FStaticMeshStaticLightingMesh::OtherLODs

The meshes representing other LODs of this primitive.

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The documentation for this class was generated from the following files:

• Engine/Source/Runtime/Engine/Public/StaticMeshLight.h
• Engine/Source/Runtime/Engine/Private/StaticMeshLight.cpp