Class TimeStepPF¶

Defined in File TimeStepPF.h

Inheritance Relationships¶

Base Type¶

public SPH::TimeStep (Class TimeStep)

Class Documentation¶

class SPH::TimeStepPF : public SPH::TimeStep ¶

This class implements the Projective Fluids approach introduced by Weiler, Koschier and Bender [WKB16].

References:

[WKB16] Marcel Weiler, Dan Koschier, and Jan Bender. Projective fluids. In Proceedings of the 9th International Conference on Motion in Games, MIG ‘16, 79-84. New York, NY, USA, 2016. ACM. URL: http://doi.acm.org/10.1145/2994258.2994282

Public Functions

TimeStepPF()¶

virtual ~TimeStepPF(void)¶

virtual void step() override¶

virtual void reset() override¶

virtual void resize() override¶

Public Static Functions

static void matrixVecProd(const Real *vec, Real *result, void *userData)¶

Public Static Attributes

static int STIFFNESS = -1¶

Protected Types

using VectorXr = Eigen::Matrix<Real, -1, 1>¶

using VectorXrMap = Eigen::Map<VectorXr>¶

using Solver = Eigen::ConjugateGradient<MatrixReplacement, Eigen::Lower | Eigen::Upper, JacobiPreconditioner3D>¶

Protected Functions

void preparePreconditioner()¶

void initialGuessForPositions(const unsigned int fluidModelIndex)¶

void solvePDConstraints()¶

void updatePositionsAndVelocity(const VectorXr &x)¶

void addAccellerationToVelocity()¶

void matrixFreeRHS(const VectorXr &x, VectorXr &result)¶: compute the right hand side of the system in a matrix-free fashion and store the result in result

void performNeighborhoodSearch()¶: Perform the neighborhood search for all fluid particles.

virtual void emittedParticles(FluidModel *model, const unsigned int startIndex) override¶

virtual void initParameters() override¶

Protected Attributes

SimulationDataPF m_simulationData¶

Solver m_solver¶

Real m_stiffness¶

unsigned int m_counter¶

unsigned int m_numActiveParticlesTotal¶

Protected Static Functions

static FORCE_INLINE void diagonalMatrixElement (const unsigned int row, Vector3r &result, void *userData)