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FConvexBuilder

Unreal Engine C++ API Reference > Runtime > Chaos > Chaos

References

   
Module Chaos
Header /Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/CollisionConvexMesh.h
Include #include "Chaos/CollisionConvexMesh.h"

Syntax

class FConvexBuilder

Functions

  Type Name Description
Public function Static void

Build ( const TArray< FVec3Type >& InVertices,
TArray< FPlaneType >& OutPlanes,
TArray< TArray< int32 >>& OutFaceIndices,
TArray< FVec3Type >& OutVertices,
FAABB3Type& OutLocalBounds,
EBuildMethod BuildMethod
)

  
Public function Static void

BuildConvexHull ( const TArray< FVec3Type >& InVertices,
TArray< TVec3< int32 >>& OutIndices,
const Params& InParams
)

  
Public function Static FTriangleMesh

BuildConvexHullTriMesh ( const TArray< FVec3Type >& InVertices
)

  
Public function Static void

BuildIndices ( const TArray< FVec3Type >& InVertices,
TArray< int32 >& OutResultIndexData,
EBuildMethod BuildMethod
)

  
Public function Static void

BuildPlaneVertexIndices ( TArray< FPlaneType >& InPlanes,
const TArray< FVec3Type >& Vertices,
TArray< TArray< int32 >>& OutFaceVertexIndices,
const FRealType DistanceTolerance
)

 Generate the vertex indices for all planes in CCW order (used to serialize old data that did not have structure data)
Public function Static void

FinalizeFaces ( const FPlaneType& Face,
TArray< int32 >& InOutFaceVertexIndices,
const TArray< FVec3Type >& Vertices
)

 Make sure faces have CCW winding, remove inside points
Public function Static bool

IsFaceOutlineConvex ( const FPlaneType& Plane,
const TArray< int32 >& Indices,
const TArray< FVec3Type >& Vertices
)

  
Public function Static bool  
Public function Static bool

IsPerformanceWarning ( int32 NumPlanes,
int32 NumVertices
)

  
Public function Static bool

IsPlanarShape ( const TArray< FVec3Type >& InVertices,
FVec3Type& OutNormal
)

  
Public function Static bool

IsValidQuad ( const FVec3Type& A,
const FVec3Type& B,
const FVec3Type& C,
const FVec3Type& D,
FVec3Type& OutNormal
)

  
Public function Static bool

IsValidTriangle ( const FVec3Type& A,
const FVec3Type& B,
const FVec3Type& C
)

  
Public function Static bool

IsValidTriangle ( const FVec3Type& A,
const FVec3Type& B,
const FVec3Type& C,
FVec3Type& OutNormal
)

  
Public function Static void

MergeColinearEdges ( TArray< FPlaneType >& InOutPlanes,
TArray< TArray< int32 >>& InOutFaceVertexIndices,
TArray< FVec3Type >& InOutVertices,
FRealType AngleToleranceRad
)

 Find edge pairs that are colinear and remove the unnecessary vertex to make a single edge.
Public function Static void

MergeFaces ( TArray< FPlaneType >& InOutPlanes,
TArray< TArray< int32 >>& InOutFaceVertexIndices,
const TArray< FVec3Type >& Vertices,
FRealType DistanceThreshold
)

 Convert multi-triangle faces to single n-gons.
Public function Static FString

PerformanceWarningString ( int32 NumPlanes,
int32 NumVertices
)

  
Public function Static void

RemoveInsideFaceVertices ( const FPlaneType& Face,
TArray< int32 >& InOutFaceVertexIndices,
const TArray< FVec3Type >& Vertices,
const FVec3Type& Centroid
)

 IMPORTANT : vertices are assumed to be sorted CCW.
Public function Static void

RemoveInvalidFaces ( TArray< FPlaneType >& InOutPlanes,
TArray< TArray< int32 >>& InOutFaceVertexIndices
)

 Remove any invalid faces ( less than 3 vertices )
Public function Static void

Simplify ( TArray< FPlaneType >& InOutPlanes,
TArray< TArray< int32 >>& InOutFaces,
TArray< FVec3Type >& InOutVertices,
FAABB3Type& InOutLocalBounds
)

  
Public function Static void

SortFaceVerticesCCW ( const FPlaneType& Face,
TArray< int32 >& InOutFaceVertexIndices,
const TArray< FVec3Type >& Vertices,
const FVec3Type& Centroid
)

 Reorder the vertices to be counter-clockwise about the normal.
Public function Static FRealType

SuggestEpsilon ( const TArray< FVec3Type >& InVertices
)

  
Public function Static bool

UseConvexHull3 ( EBuildMethod BuildMethod
)

  

Classes

  Type Name Description
Public class Params    

Enums

  Type Name Description
Public enum EBuildMethod    

Typedefs

Name Description
FAABB3Type  
FPlaneType  
FRealType  
FVec3Type  

Constants

Name Description
bUseGeometryTConvexHull3  
ComputeHorizonEpsilonFromMeshExtends  
PerformGeometryCheck CVars variables for controlling geometry complexity checking and simplification.
PerformGeometryReduction  
VerticesThreshold  

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