PxParticleNeighborhoodProvider

class PxParticleNeighborhoodProvider

Computes neighborhood information for a point cloud.

Public Functions

virtual void buildNeighborhood(PxVec4 *deviceParticlePos, const PxU32 numParticles, CUstream stream, PxU32 *devicePhases = NULL, PxU32 validPhaseMask = PxParticlePhaseFlag::eParticlePhaseFluid, const PxU32 *deviceActiveIndices = NULL) = 0

Schedules the compuation of neighborhood information on the specified cuda stream.

Parameters

deviceParticlePos – [in] A gpu pointer containing the particle positions
numParticles – [in] The number of particles
stream – [in] The stream on which the cuda call gets scheduled
devicePhases – [in] An optional gpu pointer with particle phases
validPhaseMask – [in] An optional phase mask to define which particles should be included into the neighborhood computation
deviceActiveIndices – [in] An optional device pointer containing all indices of particles that are currently active

virtual PxU32 getMaxParticles() const = 0

Gets the maximal number of particles.

virtual void setMaxParticles(PxU32 maxParticles) = 0

Sets the maximal number of particles.

virtual PxU32 getMaxGridCells() const = 0

Gets the maximal number of grid cells.

virtual PxReal getCellSize() const = 0

Gets the cell size.

virtual PxU32 getNumGridCellsInUse() const = 0

Gets the number of grid cells in use.

virtual void setCellProperties(PxU32 maxGridCells, PxReal cellSize) = 0

Sets the maximal number of particles.

Parameters

maxGridCells – [in] The maximal number of grid cells
cellSize – [in] The cell size. Should be equal to 2*contactOffset for PBD particle systems.