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  3. FMeshDescriptionOperations

FMeshDescriptionOperations

[FMeshDescriptionOperations](API\Developer\MeshDescriptionOperations\FMeshDescriptionOperations) has been deprecated, most of it's features have been moved over [FStaticMeshOperations](API\Runtime\StaticMeshDescription\FStaticMeshOperations).

API > API/Developer > API/Developer/MeshDescriptionOperations

FMeshDescriptionOperations has been deprecated, most of it's features have been moved over FStaticMeshOperations.

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

Syntax

class FMeshDescriptionOperations

Enums

Public

Name Remarks
ETangentOptions  

Typedefs

Name Type Remarks Include Path
FAppendSettings FStaticMeshOperations::FAppendSettings   MeshDescriptionOperations.h

Functions

Static

Name Remarks Include Path Unreal Specifiers

static bool AddUVChannel ( FMeshDescription& MeshDescription
)

 Add a UV channel to the MeshDescription. MeshDescriptionOperations.h  

static void AppendMeshDescription ( const FMeshDescription& SourceMesh,
FMeshDescription& TargetMesh,
FAppendSettings& AppendSettings
)

   MeshDescriptionOperations.h  

static void BuildWeldedVertexIDRemap ( const FMeshDescription& MeshDescription,
const float WeldingThreshold,
TMap< FVertexID, FVertexID >& OutVertexIDRemap
)

   MeshDescriptionOperations.h  

static FSHAHash ComputeSHAHash ( const FMeshDescription& MeshDescription
)

 Computes the SHA hash of all the attributes values in the MeshDescription. MeshDescriptionOperations.h  

static void ConvertFromRawMesh ( const FRawMesh& SourceRawMesh,
FMeshDescription& DestinationMeshDescription,
const TMap< int32, FName >& MaterialMap
)

 Convert old FRawMesh format to MeshDescription. MeshDescriptionOperations.h  

static void ConvertHardEdgesToSmoothGroup ( const FMeshDescription& SourceMeshDescription,
TArray< uint32 >& FaceSmoothingMasks
)

   MeshDescriptionOperations.h  

static void ConvertSmoothGroupToHardEdges ( const TArray< uint32 >& FaceSmoothingMasks,
FMeshDescription& DestinationMeshDescription
)

   MeshDescriptionOperations.h  

static void ConvertToRawMesh ( const FMeshDescription& SourceMeshDescription,
FRawMesh& DestinationRawMesh,
const TMap< FName, int32 >& MaterialMap
)

 Convert this mesh description into the old FRawMesh format. MeshDescriptionOperations.h  

static bool CreateLightMapUVLayout ( FMeshDescription& MeshDescription,
int32 SrcLightmapIndex,
int32 DstLightmapIndex,
int32 MinLightmapResolution,
ELightmapUVVersion LightmapUVVersion,
const FOverlappingCorners& OverlappingCorners
)

 Find and pack UV charts for lightmap. MeshDescriptionOperations.h  

static void CreateMikktTangents ( FMeshDescription& MeshDescription,
ETangentOptions TangentOptions
)

 Compute tangent and Bi-Normal using mikkt space for every vertex in the mesh description. MeshDescriptionOperations.h  

static void CreateNormals ( FMeshDescription& MeshDescription,
ETangentOptions TangentOptions,
bool bComputeTangent
)

 Compute normal, tangent and Bi-Normal(only if bComputeTangent is true) for every vertex in the mesh description. MeshDescriptionOperations.h  

static void CreatePolygonNTB ( FMeshDescription& MeshDescription,
float ComparisonThreshold
)

 Compute normal, tangent and Bi-Normal for every polygon in the mesh description. MeshDescriptionOperations.h  

static void FindOverlappingCorners ( FOverlappingCorners& OverlappingCorners,
const FMeshDescription& MeshDescription,
float ComparisonThreshold
)

 Find all overlapping vertex using the threshold in the mesh description. MeshDescriptionOperations.h  

static void GenerateBoxUV ( const FMeshDescription& MeshDescription,
const FUVMapParameters& Params,
TMap< FVertexInstanceID, FVector2D >& OutTexCoords
)

 Generate box UV mapping for the MeshDescription MeshDescriptionOperations.h  

static void GenerateCylindricalUV ( FMeshDescription& MeshDescription,
const FUVMapParameters& Params,
TMap< FVertexInstanceID, FVector2D >& OutTexCoords
)

 Generate cylindrical UV mapping for the MeshDescription MeshDescriptionOperations.h  

static void GeneratePlanarUV ( const FMeshDescription& MeshDescription,
const FUVMapParameters& Params,
TMap< FVertexInstanceID, FVector2D >& OutTexCoords
)

 Generate planar UV mapping for the MeshDescription MeshDescriptionOperations.h  

static bool GenerateUniqueUVsForStaticMesh ( const FMeshDescription& MeshDescription,
int32 TextureResolution,
bool bMergeIdenticalMaterials,
TArray< FVector2D >& OutTexCoords
)

 Create some UVs from the specified mesh description data. MeshDescriptionOperations.h  

static int32 GetUVChartCount ( FMeshDescription& MeshDescription,
int32 SrcLightmapIndex,
ELightmapUVVersion LightmapUVVersion,
const FOverlappingCorners& OverlappingCorners
)

 Find all charts in the mesh description. MeshDescriptionOperations.h  

static bool HasVertexColor ( const FMeshDescription& MeshDescription
)

   MeshDescriptionOperations.h  

static bool InsertUVChannel ( FMeshDescription& MeshDescription,
int32 UVChannelIndex
)

 Insert a UV channel at the given index to the MeshDescription. MeshDescriptionOperations.h  

static void RecomputeNormalsAndTangentsIfNeeded ( FMeshDescription& MeshDescription,
ETangentOptions TangentOptions,
bool bForceRecomputeNormals,
bool bForceRecomputeTangents
)

 Check if all normals and tangents are valid, if not recompute them MeshDescriptionOperations.h  

static void RemapPolygonGroups ( FMeshDescription& MeshDescription,
TMap< FPolygonGroupID, FPolygonGroupID >& Remap
)

   MeshDescriptionOperations.h  

static bool RemoveUVChannel ( FMeshDescription& MeshDescription,
int32 UVChannelIndex
)

 Remove the UV channel at the given index from the MeshDescription. MeshDescriptionOperations.h  

static void SwapPolygonPolygonGroup ( FMeshDescription& MeshDescription,
int32 SectionIndex,
int32 TriangleIndexStart,
int32 TriangleIndexEnd,
bool bRemoveEmptyPolygonGroup
)

 Move some polygon to a new PolygonGroup(section) SectionIndex: The target section we want to assign the polygon. MeshDescriptionOperations.h  

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