FStaticMeshLODResources | Unreal Engine 4.27 Documentation

Unreal Engine C++ API Reference > Runtime > Engine

Inheritance Hierarchy

FRefCountBase
FStaticMeshLODResources

References


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

Syntax

struct FStaticMeshLODResources : public FRefCountBase

Remarks

Rendering resources needed to render an individual static mesh LOD. This structure is ref counted to allow the LOD streamer to evaluate the number of readers to it (readers that could access the CPU data). Because the stream out clears the CPU readable data, CPU code that samples it must ensure to only reference LODs above CurrentFirstLODIdx.

Variables

Type	Name	Description
FAdditionalStaticMeshIndexBuffers *	AdditionalIndexBuffers
FStaticMeshAreaWeightedSectionSampler	AreaWeightedSampler	Allows uniform random selection of mesh sections based on their area.
FStaticMeshSectionAreaWeightedTriangleSamplerArray	AreaWeightedSectionSamplers	Allows uniform random selection of triangles on each mesh section based on triangle area.
FStaticMeshSectionAreaWeightedTriangleSamplerBuffer	AreaWeightedSectionSamplersBuffer	Allows uniform random selection of triangles on GPU.
uint32: 1	bBuffersInlined	True if vertex and index data are serialized inline
uint32: 1	bHasColorVertexData
uint32: 1	bHasDepthOnlyIndices	True if the depth only index buffers contained data at init.
uint32: 1	bHasRayTracingGeometry	True if the ray tracing resources struct contained data at init.
uint32: 1	bHasReversedDepthOnlyIndices	True if the reversed index buffers contained data at init.
uint32: 1	bHasReversedIndices	True if the reversed index buffers contained data at init.
uint32: 1	bHasWireframeIndices
uint32: 1	bIsOptionalLOD	True if this LOD is optional. That is, vertex and index data may not be available
uint32	BuffersSize	Sum of all vertex and index buffer sizes. Calculated in SerializeBuffers
FByteBulkData	BulkData
FCardRepresentationData *	CardRepresentationData	Card Representation data associated with this mesh, null if not present.
FRawStaticIndexBuffer	DepthOnlyIndexBuffer	Index buffer resource for rendering in depth only passes.
uint32	DepthOnlyNumTriangles
FString	DerivedDataKey
FDistanceFieldVolumeData *	DistanceFieldData	Distance field data associated with this mesh, null if not present.
FRawStaticIndexBuffer	IndexBuffer	Index buffer resource for rendering.
float	MaxDeviation	The maximum distance by which this LOD deviates from the base from which it was generated.
FRayTracingGeometry	RayTracingGeometry	Geometry for ray tracing.
FStaticMeshSectionArray	Sections	Sections for this LOD.
FByteBulkData	StreamingBulkData
FStaticMeshVertexBuffers	VertexBuffers
TArray< int32 >	WedgeMap	Map of wedge index to vertex index. Each LOD need one

Constructors

	Type	Name	Description
		FStaticMeshLODResources ( bool bAddRef )	Default constructor.

Destructors

	Type	Name	Description
		~FStaticMeshLODResources ()

Functions

Type	Name	Description
SIZE_T	GetCPUAccessMemoryOverhead ()	Get the estimated memory overhead of buffers marked as NeedsCPUAccess.
int32	GetNumTexCoords ()
int32	GetNumTriangles ()	Return the triangle count of this LOD.
int32	GetNumVertices ()	Return the number of vertices in this LOD.
void	GetResourceSizeEx ( FResourceSizeEx& CumulativeResourceSize )
void	InitResources ( UStaticMesh* Parent, int32 LODIndex )	Initializes all rendering resources.
void	ReleaseResources ()	Releases all rendering resources.
void	ReleaseRHIForStreaming ( TBatcher& Batcher )
void	Serialize ( FArchive& Ar, UObject* Owner, int32 Idx )	Serialize.

Enums

	Type	Name	Description
	EClassDataStripFlag

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