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  3. FGaussSeidelSphereRepulsionConstraints

FGaussSeidelSphereRepulsionConstraints

API > API/Runtime > API/Runtime/Chaos

   
Name FGaussSeidelSphereRepulsionConstraints
Type class
Header File /Engine/Source/Runtime/Experimental/Chaos/Public/Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h
Include Path #include "Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h"

Syntax

template<typename T, typename ParticleType>  
class FGaussSeidelSphereRepulsionConstraints

Constructors

Name Remarks Include Path Unreal Specifiers

FGaussSeidelSphereRepulsionConstraints ( FSolverReal InRadius,
FSolverReal InStiffness,
const ParticleType& InParticles,
const FDeformableXPBDWeakConstraintParams& InParams
)

 TODO(Yushan): Add unit tests for Gauss Seidel Sphere Repulsion Constraints. Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

Destructors

Name Remarks Include Path Unreal Specifiers

virtual ~FGaussSeidelSphereRepulsionConstraints()

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

Structs

Name Remarks
FSphereSpatialEntry  

Variables

Protected

Name Type Remarks Include Path Unreal Specifiers
DebugDrawParams FDeformableXPBDWeakConstraintParams   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  
ReferencePositions TArray< FSolverVec3 >   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

Functions

Public

Name Remarks Include Path Unreal Specifiers

void AddSphereRepulsionHessian ( const int32 p,
const T Dt,
Chaos::PMatrix< T, 3, 3 >& ParticleHessian
)

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void AddSphereRepulsionResidual ( const ParticleType& InParticles,
const int32 p,
const T Dt,
TVec3< T >& res
)

 Energy = k/2*(2r-d)^2 Residual = de/dx = -force = -k*(2r-d)*dd/dx Hessian = de2/dx2 = k*dd/dx*dd/dx-k*(2r-d)*(-dd/dx*dd/dx^T+I)/d Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void AddSphereRepulsionResidualAndHessian ( const ParticleType& InParticles,
const int32 ConstraintIndex,
const int32 LocalIndex,
const T Dt,
TVec3< T >& ParticleResidual,
Chaos::PMatrix< T, 3, 3 >& ParticleHessian
)

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void Init ( const FSolverParticles& InParticles,
const T Dt
) const

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void ReturnSphereRepulsionConstraints ( TArray< TArray< int32 > >& ExtraConstraints,
TArray< TArray< int32 > >& ExtraIncidentElements,
TArray< TArray< int32 > >& ExtraIncidentElementsLocal
)

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void UpdateSphereRepulsionConstraints ( const FSolverParticles& Particles,
const TArray< int32 >& SurfaceVertices,
const TArray< int32 >& ComponentIndex
)

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

void VisualizeAllBindings ( const FSolverParticles& InParticles,
const T Dt
) const

   Chaos/Deformable/GaussSeidelSphereRepulsionConstraints.h  

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