1. Epic GamesDeveloper
  3. FSelectiveTessellate

FSelectiveTessellate

Given an input mesh and a tessellation pattern, this operator generates a new tessellated mesh where the triangles affected are subtriangulated according to the rules specified by the pattern.

API > API/Plugins > API/Plugins/DynamicMesh

Given an input mesh and a tessellation pattern, this operator generates a new tessellated mesh where the triangles affected are subtriangulated according to the rules specified by the pattern. Per-vertex normals, UVs, colors, and extended per-vertex attributes are linearly interpolated to the new vertices. Per-triangle group identifiers/materials and extended triangle attributes for the new triangles are inherited from the corresponding input mesh triangles they replaced.

Currently does not support interpolation of the GenericAttributes besides Skin Weights.

   
Name FSelectiveTessellate
Type class
Header File /Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/SelectiveTessellate.h
Include Path #include "Operations/SelectiveTessellate.h"

Syntax

class FSelectiveTessellate

Constructors

Name Remarks Include Path Unreal Specifiers
Tessellate the mesh inplace. Operations/SelectiveTessellate.h  
Tessellate the mesh and write the result into another mesh. Operations/SelectiveTessellate.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FSelectiveTessellate()

   Operations/SelectiveTessellate.h  

Structs

Name Remarks
FTessellationInformation Output Stores any additional tessellation information that was requested by the caller.

Variables

Public

Name Type Remarks Include Path Unreal Specifiers
bUseParallel bool Should tessellation be multi-threaded. Operations/SelectiveTessellate.h  
Pattern FTessellationPattern * Tessellation pattern determines how we tessellate edges and triangles. Operations/SelectiveTessellate.h  
Progress FProgressCancel * Inputs Set this to be able to cancel running operation.    

currently not implemented | Operations/SelectiveTessellate.h | |

ResultMesh FDynamicMesh3 * Input/Output The tessellated mesh. Operations/SelectiveTessellate.h  
TessInfo FTessellationInformation   Operations/SelectiveTessellate.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

virtual bool Compute()

 Generate tessellated geometry. Operations/SelectiveTessellate.h  

void SetPattern ( FTessellationPattern* InPattern
)

   Operations/SelectiveTessellate.h  

virtual EOperationValidationResult Validate()

   Operations/SelectiveTessellate.h  

Protected

Name Remarks Include Path Unreal Specifiers

virtual bool Cancelled()

   Operations/SelectiveTessellate.h  

Static

Name Remarks Include Path Unreal Specifiers

static TUniquePtr< FTessellationPattern > CreateConcentricRingsPatternFromMaterial ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const int MaterialID
)

 Tessellate only triangles that belong to a given material (FDynamicMeshMaterialAttribute). Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsPatternFromPolyGroup ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const FString& InLayerName,
const int InPolygroupID
)

 Tessellate only triangles that belong to a given polygroup id within the polygroup layer attribute (FDynamicMeshPolygroupAttribute) specified by its name. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsPatternFromSelectionAndMaterial ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const int MaterialID,
const TArray< int >& SelectedTriangles
)

 Tessellate only triangles that are selected AND which belong to a given material (FDynamicMeshMaterialAttribute). Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsPatternFromTriangleGroup ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const int InPolygroupID
)

 Tessellate only triangles that belong to a given triangle group id. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsTessellationPattern ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const TArray< int >& InTriangleList
)

 Tessellate only selected triangles such that the edge and inner tessellation levels of those triangles are set to InTessellationLevel. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsTessellationPattern ( const FDynamicMesh3* InMesh,
const TArray< int >& InEdgeTessLevels,
const TArray< int >& InInnerTessLevels
)

 Helper methods for setting up built-in tessellation patterns. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsTessellationPattern ( const TFunctionRef< int(const int EdgeID)> InEdgeFunc,
const TFunctionRef< int(const int TriangleID)> InTriFunc
)

 InEdgeFunc and InTriFunc functions will be evaluated on all edges and triangles respectively to determine their desired tessellation levels. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateConcentricRingsTessellationPattern ( const FDynamicMesh3* InMesh,
const int InTessellationLevel
)

 Tessellate the whole mesh such that all the edge and inner tessellation levels are equal to InTessellationLevel. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateInnerUnifromTessellationPattern ( const FDynamicMesh3* InMesh,
const TArray< int >& InEdgeTessLevels,
const TArray< int >& InInnerTessLevels
)

 Pattern where the inner area is tessellated using the uniform loop style subdivision. Operations/SelectiveTessellate.h  

static TUniquePtr< FTessellationPattern > CreateUniformTessellationPattern ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const TArray< int >& InTriangleList
)

 Pattern where the whole triangle is tessellated using the loop style subdivision. Operations/SelectiveTessellate.h  

Ask questions and help your peers Developer Forums

Write your own tutorials or read those from others Learning Library

On this page