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  3. FDynamicMeshToMeshDescription

FDynamicMeshToMeshDescription

Convert FDynamicMesh3 to [FMeshDescription](API\Runtime\MeshDescription\FMeshDescription)

API > API/Runtime > API/Runtime/MeshConversion

Convert FDynamicMesh3 to FMeshDescription

   
Name FDynamicMeshToMeshDescription
Type class
Header File /Engine/Source/Runtime/MeshConversion/Public/DynamicMeshToMeshDescription.h
Include Path #include "DynamicMeshToMeshDescription.h"

Syntax

class FDynamicMeshToMeshDescription

Constructors

Name Remarks Include Path Unreal Specifiers
  DynamicMeshToMeshDescription.h  
  DynamicMeshToMeshDescription.h  

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bPrintDebugMessages bool If true, will print some possibly-helpful debugging spew to output log DynamicMeshToMeshDescription.h  
ConversionOptions FConversionToMeshDescriptionOptions General settings for conversions to mesh description DynamicMeshToMeshDescription.h  

Protected

Name Type Remarks Include Path Unreal Specifiers
MaterialIDToPolygroupIDMap TArray< int32 > Optional remapping from dynamic mesh material ID to desired mesh description polygroup IDs. DynamicMeshToMeshDescription.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void Convert ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
bool bCopyTangents
)

 Default conversion of DynamicMesh to MeshDescription. DynamicMeshToMeshDescription.h  

void Convert_NoAttributes ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut
)

 Internal functions that you can also call directly Ignore any Attributes on input Mesh, calculate per-vertex normals and have MeshDescription compute tangents. DynamicMeshToMeshDescription.h  

void Convert_NoSharedInstances ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
bool bCopyTangents
)

 Convert with no shared VertexInstances. DynamicMeshToMeshDescription.h  

void Convert_SharedInstances ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut
)

 Convert while minimizing VertexInstance count, IE new VertexInstances are only created if a unique UV or Normal is required. DynamicMeshToMeshDescription.h  

bool HaveMatchingElementCounts ( const FDynamicMesh3* DynamicMesh,
const FMeshDescription* MeshDescription
)

 Checks if element counts match. DynamicMeshToMeshDescription.h  

void SetMaterialIDMapFromInverseMap ( TArrayView< const int32 > PolygroupIDToMaterialIDMap
)

 Set MaterialID to Polygroup mapping via the reverse mapping. DynamicMeshToMeshDescription.h  

void Update ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
bool bUpdateNormals,
bool bUpdateTangents,
bool bUpdateUVs
)

 Update existing MeshDescription based on DynamicMesh. DynamicMeshToMeshDescription.h  

void UpdateAttributes ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
bool bUpdateNormals,
bool bUpdateTangents,
bool bUpdateUVs
)

 Update only attributes, assuming the mesh topology has not changed. DynamicMeshToMeshDescription.h  

void UpdateTangents ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut
)

 Use the MeshIn Overlays to update the Tangent and BinormalSign attributes of the MeshDescription, assuming mesh topology has not changed. DynamicMeshToMeshDescription.h  

void UpdateTangents ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
const UE::Geometry::TMeshTangents< double >* SrcTangents
)

 Use the TMeshTangents to update the Tangent and BinormalSign attributes of the MeshDescription, assuming mesh topology has not changed. DynamicMeshToMeshDescription.h  
Updates the given mesh description based conversion options provided in the constructor. DynamicMeshToMeshDescription.h  

void UpdateVertexColors ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut
)

 Update only vertex colors, assuming the mesh topology has not changed. DynamicMeshToMeshDescription.h  

Protected

Name Remarks Include Path Unreal Specifiers

void ApplyVertexColorTransform ( FVector4f& Color
) const

 Applies an optional sRGB-to-Linear color transform on the input. DynamicMeshToMeshDescription.h  

void ConvertPolygroupLayers ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
const TArray< FTriangleID >& IndexToTriangleIDMap
)

 Transfer PolygroupLayers from DynamicMesh AttributeSet to MeshDescription. DynamicMeshToMeshDescription.h  

void ConvertWeightLayers ( const FDynamicMesh3* MeshIn,
FMeshDescription& MeshOut,
const TArray< FVertexID >& IndexToVertexIDMap
)

 Transfer WeightLayers from DynamicMesh AttributeSet to MeshDescription. DynamicMeshToMeshDescription.h  

Static

Name Remarks Include Path Unreal Specifiers

static bool HaveMatchingElementCounts ( const FDynamicMesh3* DynamicMesh,
const FMeshDescription* MeshDescription,
bool bVerticesOnly,
bool bAttributesOnly
)

 Checks if element counts match. If false then Update can't be called you must call Convert DynamicMeshToMeshDescription.h  

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