1. Epic GamesDeveloper
  3. IMeshUtilities

IMeshUtilities

Unreal Engine C++ API Reference > Developer > MeshUtilities

Inheritance Hierarchy

References

   
Module MeshUtilities
Header /Engine/Source/Developer/MeshUtilities/Public/MeshUtilities.h
Include #include "MeshUtilities.h"

Syntax

class IMeshUtilities : public IModuleInterface

Functions

  Type Name Description
Public function 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.
Public function 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
Public function bool

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

 Builds a renderable static mesh using the provided source models and the LOD groups settings.
Public function 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
)

  
Public function void

CacheOptimizeIndexBuffer ( TArray< uint32 >& Indices
)

 Cache optimize the index buffer.
Public function void

CacheOptimizeIndexBuffer ( TArray< uint16 >& Indices
)

 Cache optimize the index buffer.
Public function void

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

 Calculate the verts associated weighted to each bone of the skeleton.
Public function Const 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
)

 Calculates MikkTSpace Tangents for a given set of vertex data with normals provided
Public function Const void

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

 Calculates Normals for a given set of vertex data
Public function Const void

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

 Calculates the overlapping corners for a given set of vertex data
Public function Const 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
)

 Calculates Tangents and Normals for a given set of vertex data
Public function Const void Calculates UV coordinates bounds for the given Skeletal Mesh
Public function 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.
Public function 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.
Public function Const void This function create the import data using the LODModel.
Public function Const void

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

  
Public function Const void Used to make sure all imported material slot name are unique and non empty.
Public function Const void Used to make sure all imported material slot name are unique and non empty.
Public function bool

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

  
Public function Const void

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

 Used to generate runtime skin weight data from Editor-only data
Public function void

GenerateSignedDistanceFieldVolumeData ( FString MeshName,
const FSourceMeshDataForDerivedDataTask& SourceMeshData,
const FStaticMeshLODResources& LODModel,
FQueuedThreadPool& ThreadPool,
const TArray< FSignedDistanceFieldBuildMaterialData >& MaterialBlendModes,
const FBoxSphereBounds& Bounds,
float DistanceFieldResolutionScale,
bool bGenerateAsIfTwoSided,
FDistanceFieldVolumeData& OutData
)

 Builds a signed distance field volume for the given LODModel.
Public function 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.
Public function Const bool

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

 Calculates (new) non-overlapping UV coordinates for the given Skeletal Mesh
Public function Const bool

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

 Calculates (new) non-overlapping UV coordinates for the given Raw Mesh
Public function Const bool

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

  
Public function Const const FString & Returns a string uniquely identifying this version of mesh utilities.
Public function Const void

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

  
Public function Const void

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

  
Public function Const bool

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

 Remove Bones based on LODInfo setting

Classes

  Type Name Description
Public struct MeshBuildOptions Helper structure for skeletal mesh import options  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page