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IMeshUtilities

API > API/Developer > API/Developer/MeshUtilities

   
Name IMeshUtilities
Type class
Header File /Engine/Source/Developer/MeshUtilities/Public/MeshUtilities.h
Include Path #include "MeshUtilities.h"

Syntax

class IMeshUtilities : public IModuleInterface

Implements Interfaces

Structs

Name Remarks
MeshBuildOptions Helper structure for skeletal mesh import options

Functions

Public

Name Remarks Include Path Unreal Specifiers

void BuildSkeletalAdjacencyIndexBuffer ( const TArray< struct FSoftSkinVertex >& VertexBuffer,
const uint32 TexCoordCount,
const TArray< uint32 >& Indices,
TArray< uint32 >& OutPnAenIndices
)

 Build adjacency information for the skeletal mesh used for tessellation. MeshUtilities.h  

bool BuildSkeletalMesh ( FSkeletalMeshLODModel& LODModel,
const FString& SkeletalMeshName,
const FReferenceSkeleton& RefSkeleton,
const TArray< SkeletalMeshImportData::FVertInfluence >& Influences,
const TArray< SkeletalMeshImportData::FMeshWedge >& Wedges,
const TArray< SkeletalMeshImportData::FMeshFace >& Faces,
const TArray< FVector3f >& Points,
const TArray< int32 >& PointToOriginalMap,
const MeshBuildOptions& BuildOptions,
TArray< FText >* OutWarningMessages,
TArray< FName >* OutWarningNames
)

 Create all render specific data for a skeletal mesh LOD model MeshUtilities.h  

bool BuildStaticMesh ( FStaticMeshRenderData& OutRenderData,
UStaticMesh* StaticMesh,
const FStaticMeshLODGroup& LODGroup
)

 Builds a renderable static mesh using the provided source models and the LOD groups settings. MeshUtilities.h  

void BuildStaticMeshVertexAndIndexBuffers ( TArray< FStaticMeshBuildVertex >& OutVertices,
TArray< TArray< uint32 > >& OutPerSectionIndices,
TArray< int32 >& OutWedgeMap,
const FRawMesh& RawMesh,
const FOverlappingCorners& OverlappingCorners,
const TMap< uint32, uint32 >& MaterialToSectionMapping,
float ComparisonThreshold,
FVector3f BuildScale,
int32 ImportVersion
)

   MeshUtilities.h  

void CacheOptimizeIndexBuffer ( TArray< uint32 >& Indices
)

 Cache optimize the index buffer. MeshUtilities.h  

void CacheOptimizeIndexBuffer ( TArray< uint16 >& Indices
)

 Cache optimize the index buffer. MeshUtilities.h  

void CalcBoneVertInfos ( USkeletalMesh* SkeletalMesh,
TArray< FBoneVertInfo >& Infos,
bool bOnlyDominant,
int32 LodIndex
)

 Calculate the verts associated weighted to each bone of the skeleton. MeshUtilities.h  

void CalculateMikkTSpaceTangents ( const TArray< FVector3f >& InVertices,
const TArray< uint32 >& InIndices,
const TArray< FVector2f >& InUVs,
const TArray< FVector3f >& InNormals,
bool bIgnoreDegenerateTriangles,
TArray< FVector3f >& OutTangentX,
TArray< FVector3f >& OutTangentY
) const

 Calculates MikkTSpace Tangents for a given set of vertex data with normals provided MeshUtilities.h  

void CalculateNormals ( const TArray< FVector3f >& InVertices,
const TArray< uint32 >& InIndices,
const TArray< FVector2f >& InUVs,
const TArray< uint32 >& InSmoothingGroupIndices,
const uint32 InTangentOptions,
TArray< FVector3f >& OutNormals
) const

 Calculates Normals for a given set of vertex data MeshUtilities.h  

void CalculateOverlappingCorners ( const TArray< FVector3f >& InVertices,
const TArray< uint32 >& InIndices,
bool bIgnoreDegenerateTriangles,
FOverlappingCorners& OutOverlappingCorners
) const

 Calculates the overlapping corners for a given set of vertex data MeshUtilities.h  

void CalculateTangents ( const TArray< FVector3f >& InVertices,
const TArray< uint32 >& InIndices,
const TArray< FVector2f >& InUVs,
const TArray< uint32 >& InSmoothingGroupIndices,
const uint32 InTangentOptions,
TArray< FVector3f >& OutTangentX,
TArray< FVector3f >& OutTangentY,
TArray< FVector3f >& OutNormals
) const

 Calculates Tangents and Normals for a given set of vertex data MeshUtilities.h  

void CalculateTextureCoordinateBoundsForSkeletalMesh ( const FSkeletalMeshLODModel& LODModel,
TArray< FBox2D >& OutBounds
) const

 Calculates UV coordinates bounds for the given Skeletal Mesh MeshUtilities.h  

void CalculateTriangleTangent ( const FSoftSkinVertex& VertexA,
const FSoftSkinVertex& VertexB,
const FSoftSkinVertex& VertexC,
TArray< FVector3f >& OutTangents,
float CompareThreshold
)

 Calculate The tangent, bi normal and normal for the triangle define by the tree SoftSkinVertex. MeshUtilities.h  

UStaticMesh * ConvertMeshesToStaticMesh ( const TArray< UMeshComponent* >& InMeshComponents,
const FTransform& InRootTransform,
const FString& InPackageName
)

 Convert a set of mesh components in their current pose to a static mesh. MeshUtilities.h  

void CreateImportDataFromLODModel ( USkeletalMesh* InSkeletalMesh,
bool bInResetReductionAsNeeded
) const

 This function create the import data using the LODModel. MeshUtilities.h  

void FindOverlappingCorners ( FOverlappingCorners& OutOverlappingCorners,
const TArray< FVector3f >& InVertices,
const TArray< uint32 >& InIndices,
float ComparisonThreshold
) const

   MeshUtilities.h  

void FixupMaterialSlotNames ( USkeletalMesh* SkeletalMesh
) const

 Used to make sure all imported material slot name are unique and non empty. MeshUtilities.h  

void FixupMaterialSlotNames ( UStaticMesh* StaticMesh
) const

 Used to make sure all imported material slot name are unique and non empty. MeshUtilities.h  

virtual bool GenerateCardRepresentationData ( FString MeshName,
const FSourceMeshDataForDerivedDataTask& SourceMeshData,
const FStaticMeshLODResources& LODModel,
FQueuedThreadPool& ThreadPool,
const TArray< FSignedDistanceFieldBuildSectionData >& SectionData,
const FBoxSphereBounds& Bounds,
const FDistanceFieldVolumeData* DistanceFieldVolumeData,
int32 MaxLumenMeshCards,
bool bGenerateAsIfTwoSided,
FCardRepresentationData& OutData
)

   MeshUtilities.h  

bool GenerateCardRepresentationData ( FString MeshName,
const FMeshDataForDerivedDataTask& MeshData,
const FDistanceFieldVolumeData* DistanceFieldVolumeData,
int32 MaxLumenMeshCards,
bool bGenerateAsIfTwoSided,
FCardRepresentationData& OutData
)

   MeshUtilities.h  

void GenerateRuntimeSkinWeightData ( const FSkeletalMeshLODModel* ImportedModel,
const TArray< FRawSkinWeight >& InRawSkinWeights,
bool bInUseHighPrecisionWeights,
FRuntimeSkinWeightProfileData& InOutSkinWeightOverrideData
) const

 Used to generate runtime skin weight data from Editor-only data MeshUtilities.h  

virtual void GenerateSignedDistanceFieldVolumeData ( FString MeshName,
const FSourceMeshDataForDerivedDataTask& SourceMeshData,
const FStaticMeshLODResources& LODModel,
FQueuedThreadPool& ThreadPool,
const TArray< FSignedDistanceFieldBuildSectionData >& SectionData,
const FBoxSphereBounds3f& Bounds,
float DistanceFieldResolutionScale,
bool bGenerateAsIfTwoSided,
FDistanceFieldVolumeData& OutData
)

   MeshUtilities.h  

void GenerateSignedDistanceFieldVolumeData ( FString MeshName,
const FMeshDataForDerivedDataTask& MeshData,
float DistanceFieldResolutionScale,
bool bGenerateAsIfTwoSided,
FDistanceFieldVolumeData& OutData
)

 Builds a signed distance field volume for the given mesh. MeshUtilities.h  

bool GenerateStaticMeshLODs ( UStaticMesh* StaticMesh,
const FStaticMeshLODGroup& LODGroup
)

 Builds a static mesh using the provided source models and the LOD groups settings, and replaces the RawMeshes with the reduced meshes. MeshUtilities.h  

bool GenerateUniqueUVsForSkeletalMesh ( const FSkeletalMeshLODModel& LODModel,
int32 TextureResolution,
TArray< FVector2f >& OutTexCoords
) const

 Calculates (new) non-overlapping UV coordinates for the given Skeletal Mesh MeshUtilities.h  

bool GenerateUniqueUVsForStaticMesh ( const FRawMesh& RawMesh,
int32 TextureResolution,
TArray< FVector2f >& OutTexCoords
) const

 Calculates (new) non-overlapping UV coordinates for the given Raw Mesh MeshUtilities.h  

bool GenerateUniqueUVsForStaticMesh ( const FRawMesh& RawMesh,
int32 TextureResolution,
bool bMergeIdenticalMaterials,
TArray< FVector2f >& OutTexCoords
) const

   MeshUtilities.h  

const FString & GetVersionString()

 Returns a string uniquely identifying this version of mesh utilities. MeshUtilities.h  

int64 MemoryForGenerateMeshCardRepresentation ( uint64_t IndexCount
)

   MeshUtilities.h  

int64_t MemoryForGenerateSignedDistanceFieldVolumeData ( const FMeshDataForDerivedDataTask& MeshData,
float DistanceFieldResolutionScale
)

   MeshUtilities.h  

void RecomputeTangentsAndNormalsForRawMesh ( bool bRecomputeTangents,
bool bRecomputeNormals,
const FMeshBuildSettings& InBuildSettings,
FRawMesh& OutRawMesh
) const

   MeshUtilities.h  

void RecomputeTangentsAndNormalsForRawMesh ( bool bRecomputeTangents,
bool bRecomputeNormals,
const FMeshBuildSettings& InBuildSettings,
const FOverlappingCorners& InOverlappingCorners,
FRawMesh& OutRawMesh
) const

   MeshUtilities.h  

bool RemoveBonesFromMesh ( USkeletalMesh* SkeletalMesh,
int32 LODIndex,
const TArray< FName >* BoneNamesToRemove
) const

 Remove Bones based on LODInfo setting MeshUtilities.h  

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