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  3. FMeshMergeDataTracker

FMeshMergeDataTracker

Used to keep track of in-flight data while meshes are merged and their corresponding materials baked down

API > API/Developer > API/Developer/MeshMergeUtilities

Used to keep track of in-flight data while meshes are merged and their corresponding materials baked down

   
Name FMeshMergeDataTracker
Type class
Header File /Engine/Source/Developer/MeshMergeUtilities/Public/MeshMergeDataTracker.h
Include Path #include "MeshMergeDataTracker.h"

Syntax

class FMeshMergeDataTracker

Constructors

Name Remarks Include Path Unreal Specifiers

FMeshMergeDataTracker()

   MeshMergeDataTracker.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

FMeshDescription & AddAndRetrieveRawMesh ( int32 MeshIndex,
int32 LODIndex,
UStaticMesh* InMesh
)

 Adds or retrieves raw mesh data for the mesh and LOD index MeshMergeDataTracker.h  

void AddBakedMaterialSection ( const FSectionInfo& SectionInfo
)

 Clears out unique section to be replaced with the baked material one MeshMergeDataTracker.h  

void AddComponentToWedgeMapping ( int32 MeshIndex,
int32 LODIndex,
uint32 WedgeIndex
)

   MeshMergeDataTracker.h  

void AddLightmapChannelRecord ( int32 MeshIndex,
int32 LODIndex,
int32 LightmapChannelIndex
)

 Adds a record of what channel lightmap data is stored at MeshMergeDataTracker.h  

void AddLightMapPixels ( int32 Pixels
)

 Add number of lightmap pixels used for one of the Meshes MeshMergeDataTracker.h  

void AddLODIndex ( int32 LODIndex
)

 Adds a LOD index which will be part of the final merged mesh MeshMergeDataTracker.h  

void AddMaterialSlotName ( UMaterialInterface* MaterialInterface,
FName MaterialSlotName
)

 Add a material slot name for a unique material instance. MeshMergeDataTracker.h  

int32 AddSection ( const FSectionInfo& SectionInfo
)

 Adds (unique) section to stored data MeshMergeDataTracker.h  

void AddSectionRemapping ( int32 MeshIndex,
int32 LODIndex,
int32 OriginalIndex,
int32 UniqueIndex
)

 Adding a mapping between the index for an original mesh section index and the mesh section it will be indexed to in the final mesh MeshMergeDataTracker.h  

bool DoesAnyLODContainVertexColors()

 Returns whether or not any raw mesh entry contains vertex colors for any LOD index MeshMergeDataTracker.h  

bool DoesLODContainVertexColors ( int32 LODIndex
) const

 Returns whether or not any raw mesh entry contains vertex colors for the specified LOD index MeshMergeDataTracker.h  

bool DoesMeshLODRequireUniqueUVs ( FMeshLODKey Key
)

 Returns whether or not the raw mesh entry for the given MeshLOD key requires unique UVs for baking out its material(s) MeshMergeDataTracker.h  

bool DoesUVChannelContainData ( int32 UVChannel,
int32 LODIndex
) const

 Returns whether or not any raw mesh entry contains texture coordinates for the specified UV channel and LOD index MeshMergeDataTracker.h  

bool DoesUVChannelContainData ( int32 UVChannel
) const

 Returns whether or not any raw mesh entry contains texture coordinates for the specified UV channel and any LOD index MeshMergeDataTracker.h  

FMeshDescription * FindRawMeshAndLODIndex ( int32 MeshIndex,
int32& OutLODIndex
)

 Tries to retrieve a FMeshDescription and returns the LOD index it found an entry for MeshMergeDataTracker.h  

int32 GetAvailableLightMapUVChannel()

 Returns the first available UV channel across all raw mesh entries, which will be a good fit for the lightmap UV index in the final mesh MeshMergeDataTracker.h  

uint32 GetComponentToWedgeMappng ( int32 MeshIndex,
int32 LODIndex
) const

   MeshMergeDataTracker.h  

TConstRawMeshIterator GetConstRawMeshIterator()

 Returns a const key/value iterator for the FMeshDescription entries MeshMergeDataTracker.h  

int32 GetLightMapDimension()

 Returns the texture dimension required to distribute all of the lightmap pixels MeshMergeDataTracker.h  

TConstLODIndexIterator GetLODIndexIterator()

 Iterates over LOD indices for mesh MeshMergeDataTracker.h  

void GetMappingsForMeshLOD ( FMeshLODKey Key,
TArray< SectionRemapPair >& InOutMappings
)

 Retrieves all section mappings for the MeshLOD key MeshMergeDataTracker.h  

UMaterialInterface * GetMaterialForSectionIndex ( int32 SectionIndex
)

 Returns the material used by the unique section MeshMergeDataTracker.h  

FName GetMaterialSlotName ( UMaterialInterface* MaterialInterface
) const

 Get the material slot name from a unique material instance. MeshMergeDataTracker.h  

void GetMeshLODsMappedToUniqueSection ( int32 UniqueIndex,
TArray< FMeshLODKey >& InOutMeshLODs
)

 Retrieves the MeshLOD keys from which the original sections are mapped to the unique section index MeshMergeDataTracker.h  

int32 GetNumLODsForMergedMesh()

 Retrieves number of LODs part of the final merged mesh MeshMergeDataTracker.h  

TRawMeshIterator GetRawMeshIterator()

 Returns a non-const key/value iterator for the FMeshDescription entries MeshMergeDataTracker.h  
Retrieves Raw Mesh ptr for the given MeshLOD key MeshMergeDataTracker.h  

FMeshDescription * GetRawMeshPtr ( int32 MeshIndex,
int32 LODIndex
)

 Retrieves Raw Mesh ptr for the given mesh and LOD index MeshMergeDataTracker.h  

const FSectionInfo & GetSection ( int32 SectionIndex
) const

 Returns the unique section instance MeshMergeDataTracker.h  

double GetTextureSizeFromTargetTexelDensity ( float InTargetTexelDensity
) const

   MeshMergeDataTracker.h  

int32 NumberOfUniqueSections()

 Returns the number of unique sections MeshMergeDataTracker.h  

void ProcessRawMeshes()

 Looks at all available raw mesh data and processes it to populate some flags MeshMergeDataTracker.h  

void RemoveRawMesh ( int32 MeshIndex,
int32 LODIndex
)

 Removes raw mesh entry for the given mesh and LOD index MeshMergeDataTracker.h  

FMeshDescription * TryFindRawMeshForLOD ( int32 MeshIndex,
int32& InOutDesiredLODIndex
)

 Tries to retrieve a FMeshDescription for the given mesh and LOD index, if it can't it will try to find an entry for each LOD levle below InOutDesiredLODIndex MeshMergeDataTracker.h  

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