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  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 > API/Plugins/DynamicMesh/Operations

References

   
Module DynamicMesh
Header /Engine/Plugins/Runtime/GeometryProcessing/Source/DynamicMesh/Public/Operations/SelectiveTessellate.h
Include #include "Operations/SelectiveTessellate.h"

Syntax

class FSelectiveTessellate

Remarks

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.

Variables

  Type Name Description
Protected variable bool bInPlace If true, the mesh to tessellate is contained in the ResultMesh and will be overwritten with the tessellation result.
Public variable bool bUseParallel Should tessellation be multi-threaded.
Protected variable const FDynamicMesh3 * Mesh Points to either the input mesh to be used to generate the new tessellated mesh or will point to a copy of the mesh we are tessellating inplace.
Public variable FTessellationPattern * Pattern Tessellation pattern determines how we tessellate edges and triangles.
Public variable FProgressCancel * Progress Inputs Set this to be able to cancel running operation.

currently not implemented |

Public variable FDynamicMesh3 * ResultMesh Input/OutputThe tessellated mesh.
Public variable FTessellationInformation TessInfo  

Constructors

  Type Name Description
Public function   Tessellate the mesh inplace.
Public function   Tessellate the mesh and write the result into another mesh.

Destructors

  Type Name Description
Public function Virtual    

Functions

  Type Name Description
Protected function Virtual bool  
Public function Virtual bool

Compute ()

 Generate tessellated geometry.
Public function Static TUniquePtr< FTessellationPattern >

CreateConcentricRingsPatternFromMaterial ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const int MaterialID
)

 Tessellate only triangles that belong to a given material (FDynamicMeshMaterialAttribute).
Public function 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.
Public function Static TUniquePtr< FTessellationPattern >

CreateConcentricRingsPatternFromTriangleGroup ( const FDynamicMesh3* InMesh,
const int InTessellationLevel,
const int InPolygroupID
)

 Tessellate only triangles that belong to a given triangle group id.
Public function 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.
Public function 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.
Public function Static TUniquePtr< FTessellationPattern >

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

 Helper methods for setting up built-in tessellation patterns.
Public function 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.
Public function 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.
Public function 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.
Public function void  
Public function Virtual EOperationValidationResult  

Classes

  Type Name Description
Public struct FTessellationInformation Output Stores any additional tessellation information that was requested by the caller.  

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