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  3. FMeshDescriptionToDynamicMesh

FMeshDescriptionToDynamicMesh

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

API > API/Runtime > API/Runtime/MeshConversion

Convert FMeshDescription to FDynamicMesh3

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

Syntax

class FMeshDescriptionToDynamicMesh

Enums

Public

Name Remarks
EPrimaryGroupMode Various modes can be used to create output triangle groups

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bCalculateMaps bool Should we calculate conversion index maps MeshDescriptionToDynamicMesh.h  
bDisableAttributes bool Ignore all mesh attributes (e.g. UV/Normal layers, color layer, material groups) MeshDescriptionToDynamicMesh.h  
bEnableOutputGroups bool Should we initialize triangle groups on output mesh MeshDescriptionToDynamicMesh.h  
bPrintDebugMessages bool If true, will print some possibly-helpful debugging spew to output log MeshDescriptionToDynamicMesh.h  
bTransformVertexColorsLinearToSRGB bool Should Vertex Colors of MeshDescription be transformed from Linear to SRGB MeshDescriptionToDynamicMesh.h  
bUseCompactedPolygonGroupIDValues bool Set this flag to transform Polygon Group IDs to their compacted indices, before using them as material indices in other words, 'holes' in the Mesh Description's PolygonGroups array are removed by shifting the subsequent IDs down MeshDescriptionToDynamicMesh.h  
bVIDsFromNonManifoldMeshDescriptionAttr bool If the source MeshDescription is non-manifold, store mesh vertex id as a vertex attribute on the result mesh This data can be accessed using FNonManifoldMappingSupport ( see NonManifoldMappingSupport.h) MeshDescriptionToDynamicMesh.h  
GroupMode EPrimaryGroupMode Which mode to use to create groups on output mesh. Ignored if bEnableOutputGroups = false. MeshDescriptionToDynamicMesh.h  
TriIDMap TArray< FTriangleID > Map from DynamicMesh triangle ID to MeshDescription FTriangleID MeshDescriptionToDynamicMesh.h  
VertIDMap TArray< FVertexID > Map from DynamicMesh vertex Id to MeshDecription FVertexID. MeshDescriptionToDynamicMesh.h  

Protected

Name Type Remarks Include Path Unreal Specifiers
PolygonGroupToMaterialIndexMap TArray< int32 > Mapping from mesh description polygon group element IDs to material indices MeshDescriptionToDynamicMesh.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

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

 Default conversion of MeshDescription to DynamicMesh MeshDescriptionToDynamicMesh.h  

void CopyTangents ( const FMeshDescription* SourceMesh,
const FDynamicMesh3* TargetMesh,
UE::Geometry::TMeshTangents< float >* TangentsOut
)

 Copy tangents from MeshDescription to a FMeshTangents instance. MeshDescriptionToDynamicMesh.h  

void CopyTangents ( const FMeshDescription* SourceMesh,
const FDynamicMesh3* TargetMesh,
UE::Geometry::TMeshTangents< double >* TangentsOut
)

 Copy tangents from MeshDescription to a FMeshTangents instance. MeshDescriptionToDynamicMesh.h  

void SetPolygonGroupToMaterialIndexMap ( const TArray< int32 >& PolygonGroupToMaterialIndexMapIn
)

 Set an optional mapping from mesh description polygon group to dynamic mesh material indices; if unset, an identity map is assumed MeshDescriptionToDynamicMesh.h  

Protected

Name Remarks Include Path Unreal Specifiers

void ApplyVertexColorTransform ( FVector4f& Color
) const

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

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