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FTriangleMeshImplicitObject

API > API/Runtime > API/Runtime/Chaos

   
Name FTriangleMeshImplicitObject
Type class
Header File /Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/TriangleMeshImplicitObject.h
Include Path #include "Chaos/TriangleMeshImplicitObject.h"

Syntax

class FTriangleMeshImplicitObject : public Chaos::FImplicitObject

Inheritance Hierarchy

Constructors

Name Remarks Include Path Unreal Specifiers

FTriangleMeshImplicitObject ( ParticlesType&& Particles,
TArray< TVec3< IdxType > >&& Elements,
TArray< uint16 >&& InMaterialIndices,
const BVHType& InBvhToCopy,
TUniquePtr< TArray< int32 > >&& InExternalFaceIndexMap,
TUniquePtr< TArray< int32 > >&& InExternalVertexIndexMap,
const bool bInCullsBackFaceRaycast
)

 Initialising constructor privately declared for use in CopySlow to copy the underlying BVH. Chaos/TriangleMeshImplicitObject.h  

FTriangleMeshImplicitObject ( ParticlesType&& Particles,
TArray< TVec3< IdxType > >&& Elements,
TArray< uint16 >&& InMaterialIndices,
TUniquePtr< TArray< int32 > >&& InExternalFaceIndexMap,
TUniquePtr< TArray< int32 > >&& InExternalVertexIndexMap,
const bool bInCullsBackFaceRaycast
)

   Chaos/TriangleMeshImplicitObject.h  
  Chaos/TriangleMeshImplicitObject.h  
  Chaos/TriangleMeshImplicitObject.h  
  Chaos/TriangleMeshImplicitObject.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FTriangleMeshImplicitObject()

   Chaos/TriangleMeshImplicitObject.h  

Structs

Name Remarks
FBvEntry  

Typedefs

Name Type Remarks Include Path
BVHType TAABBTree< int32, TAABBTreeLeafArray< int32, false, FRealSingle >, false, FRealSingle >   Chaos/TriangleMeshImplicitObject.h
ParticlesType TParticles< FRealSingle, 3 >   Chaos/TriangleMeshImplicitObject.h
ParticleVecType TVec3< FRealSingle >   Chaos/TriangleMeshImplicitObject.h

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
bCullsBackFaceRaycast bool   Chaos/TriangleMeshImplicitObject.h  
ExternalFaceIndexMap TUniquePtr< TArray< int32 > >   Chaos/TriangleMeshImplicitObject.h  
ExternalVertexIndexMap TUniquePtr< TArray< int32 > >   Chaos/TriangleMeshImplicitObject.h  
FastBVH FTrimeshBVH   Chaos/TriangleMeshImplicitObject.h  
MaterialIndices TArray< uint16 >   Chaos/TriangleMeshImplicitObject.h  
MElements FTrimeshIndexBuffer   Chaos/TriangleMeshImplicitObject.h  
MLocalBoundingBox FAABB3   Chaos/TriangleMeshImplicitObject.h  
MParticles ParticlesType   Chaos/TriangleMeshImplicitObject.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

const FAABB3f BoundingBoxf()

   Chaos/TriangleMeshImplicitObject.h  

void CollectTriangles ( const FAABB3& MeshQueryBounds,
const FRigidTransform3& MeshToObjectTransform,
const FAABB3& ObjectBounds,
Private::FMeshContactGenerator& Collector
) const

 Internal: do not use - this API will change as we optimize mesh collision. Chaos/TriangleMeshImplicitObject.h  
  Chaos/TriangleMeshImplicitObject.h  

const FTrimeshIndexBuffer & Elements()

   Chaos/TriangleMeshImplicitObject.h  

void FindOverlappingTriangles ( const FAABB3& QueryBounds,
TArray< int32 >& OutTriangleIndices
) const

 Get a list of triangle indices that overlap the query bounds. Chaos/TriangleMeshImplicitObject.h  

const FTrimeshBVH & GetBVH()

 Internal: Only for CVD. Chaos/TriangleMeshImplicitObject.h  

bool GetCullsBackFaceRaycast()

 Does Trimesh cull backfaces in raycast. Chaos/TriangleMeshImplicitObject.h  

int32 GetExternalFaceIndexFromInternal ( int32 InternalFaceIndex
) const

 Returns -1 if InternalFaceIndex is not in map, or map is invalid. Chaos/TriangleMeshImplicitObject.h  

FVec3 GetFaceNormal ( const int32 FaceIdx
) const

   Chaos/TriangleMeshImplicitObject.h  

void GetTransformedTriangle ( const int32 TriangleIndex,
const FRigidTransform3& Transform,
FTriangle& OutTriangle,
int32& OutVertexIndex0,
int32& OutVertexIndex1,
int32& OutVertexIndex2
) const

 Generate the triangle at the specified index with the specified transform (including scale) Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const TImplicitObjectScaled< FConvex >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const TImplicitObjectScaled< FCapsule >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const FCapsule& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const FSphere& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const FConvex& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const TImplicitObjectScaled< FSphere >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const TImplicitObjectScaled< TBox< FReal, 3 > >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool GJKContactPoint ( const TBox< FReal, 3 >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FVec3& Location,
FVec3& Normal,
FReal& Penetration,
int32& FaceIndex
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const TImplicitObjectScaled< TBox< FReal, 3 > >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const TImplicitObjectScaled< FSphere >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const FConvex& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const FCapsule& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const TBox< FReal, 3 >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const TImplicitObjectScaled< FConvex >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const FSphere& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD
) const

   Chaos/TriangleMeshImplicitObject.h  

bool OverlapGeom ( const TImplicitObjectScaled< FCapsule >& QueryGeom,
const FRigidTransform3& QueryTM,
const FReal Thickness,
FMTDInfo* OutMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

const ParticlesType & Particles()

   Chaos/TriangleMeshImplicitObject.h  

bool RaycastImp ( const TArray< TVector< IdxType, 3 > >& Elements,
const FVec3& StartPoint,
const FVec3& Dir,
const FReal Length,
const FReal Thickness,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex
) const

      

void SerializeImp ( FChaosArchive& Ar
)

   Chaos/TriangleMeshImplicitObject.h  

void SetCullsBackFaceRaycast ( const bool bInCullsBackFace
)

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const TImplicitObjectScaled< TBox< FReal, 3 > >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const TImplicitObjectScaled< FSphere >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const FCapsule& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const TBox< FReal, 3 >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const FSphere& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const FConvex& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const TImplicitObjectScaled< FCapsule >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeom ( const TImplicitObjectScaled< FConvex >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FReal Thickness,
const bool bComputeMTD,
FVec3 TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const FCapsule& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const FConvex& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const TBox< FReal, 3 >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const TImplicitObjectScaled< FSphere >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const TImplicitObjectScaled< TBox< FReal, 3 > >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const TImplicitObjectScaled< FConvex >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const TImplicitObjectScaled< FCapsule >& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

   Chaos/TriangleMeshImplicitObject.h  

bool SweepGeomCCD ( const FSphere& QueryGeom,
const FRigidTransform3& StartTM,
const FVec3& Dir,
const FReal Length,
const FReal IgnorePenetration,
const FReal TargetPenetration,
FReal& OutTOI,
FReal& OutPhi,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex,
FVec3& OutFaceNormal,
const FVec3& TriMeshScale
) const

 Sweep used for CCD. Ignores triangles we penetrate by less than IgnorePenetration, and calculate the TOI for a depth of TargetPenetration. If both are zero, this is equivalent to SweepGeom. Chaos/TriangleMeshImplicitObject.h  

void UpdateVertices ( const TArray< FVector >& Positions
)

   Chaos/TriangleMeshImplicitObject.h  

void VisitTriangles ( const FAABB3& QueryBounds,
const FRigidTransform3& QueryTransform,
const TriangleVisitor& Visitor
) const

   Chaos/TriangleMeshImplicitObject.h  

Overridden from FImplicitObject

Name Remarks Include Path Unreal Specifiers

virtual const FAABB3 BoundingBox()

   Chaos/TriangleMeshImplicitObject.h  

virtual Chaos::FImplicitObjectPtr CopyGeometry()

   Chaos/TriangleMeshImplicitObject.h  

virtual Chaos::FImplicitObjectPtr DeepCopyGeometry()

   Chaos/TriangleMeshImplicitObject.h  

virtual FVec3 FindGeometryOpposingNormal ( const FVec3& DenormDir,
int32 FaceIndex,
const FVec3& OriginalNormal
) const

 Given a normal and a face index, compute the most opposing normal associated with the underlying geometry features. Chaos/TriangleMeshImplicitObject.h  

virtual int32 FindMostOpposingFace ( const FVec3& Position,
const FVec3& UnitDir,
int32 HintFaceIndex,
FReal SearchDist
) const

 Returns the most opposing face. Chaos/TriangleMeshImplicitObject.h  

virtual int32 FindMostOpposingFaceScaled ( const FVec3& Position,
const FVec3& UnitDir,
int32 HintFaceIndex,
FReal SearchDist,
const FVec3& Scale
) const

   Chaos/TriangleMeshImplicitObject.h  

virtual uint16 GetMaterialIndex ( uint32 HintIndex
) const

   Chaos/TriangleMeshImplicitObject.h  

virtual FReal GetRadius()

   Chaos/TriangleMeshImplicitObject.h  

virtual uint32 GetTypeHash()

   Chaos/TriangleMeshImplicitObject.h  

virtual FName GetTypeName ()

   Chaos/TriangleMeshImplicitObject.h  

virtual bool Overlap ( const FVec3& Point,
const FReal Thickness
) const

 This gives derived types a way to do an overlap check without calling PhiWithNormal todo: this api is confusing. Chaos/TriangleMeshImplicitObject.h  

virtual FReal PhiWithNormal ( const FVec3& x,
FVec3& Normal
) const

 Find the closest point on the surface, and return the separating distance and axis. Chaos/TriangleMeshImplicitObject.h  

virtual bool Raycast ( const FVec3& StartPoint,
const FVec3& Dir,
const FReal Length,
const FReal Thickness,
FReal& OutTime,
FVec3& OutPosition,
FVec3& OutNormal,
int32& OutFaceIndex
) const

 This gives derived types a way to avoid calling PhiWithNormal todo: this api is confusing. Chaos/TriangleMeshImplicitObject.h  

virtual void Serialize ( FChaosArchive& Ar
)

   Chaos/TriangleMeshImplicitObject.h  

virtual FString ToString()

   Chaos/TriangleMeshImplicitObject.h  

Static

Name Remarks Include Path Unreal Specifiers

static const FName GetTypeName ( const EImplicitObjectType InType
)

   Chaos/TriangleMeshImplicitObject.h  

static EImplicitObjectType StaticType()

   Chaos/TriangleMeshImplicitObject.h  

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