Revision control
++ // Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
++ // Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
++ // SPDX-FileCopyrightText: Copyright (c) 2008-2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
++ // SPDX-License-Identifier: Apache-2.0
++
++ #ifndef PX_SPARSE_GRID_PARAMS_H
++ #define PX_SPARSE_GRID_PARAMS_H
++
++ #include "foundation/PxSimpleTypes.h"
++ #include "foundation/PxMath.h"
++
++ #if !PX_DOXYGEN
++ namespace physx
++ {
++ #endif
++
++ /**
++ \brief Parameters to define the sparse grid settings like grid spacing, maximal number of subgrids etc.
++ */
++ struct PxSparseGridParams
++ {
++ /**
++ \brief Default constructor.
++ */
++ PX_INLINE PxSparseGridParams()
++ {
++ maxNumSubgrids = 512;
++ subgridSizeX = 32;
++ subgridSizeY = 32;
++ subgridSizeZ = 32;
++ gridSpacing = 0.2f;
++ haloSize = 1;
++ }
++
++ /**
++ \brief Copy constructor.
++ */
++ PX_CUDA_CALLABLE PX_INLINE PxSparseGridParams(const PxSparseGridParams& params)
++ {
++ maxNumSubgrids = params.maxNumSubgrids;
++ subgridSizeX = params.subgridSizeX;
++ subgridSizeY = params.subgridSizeY;
++ subgridSizeZ = params.subgridSizeZ;
++ gridSpacing = params.gridSpacing;
++ haloSize = params.haloSize;
++ }
++
++ PX_CUDA_CALLABLE PX_INLINE PxU32 getNumCellsPerSubgrid() const
++ {
++ return subgridSizeX * subgridSizeY * subgridSizeZ;
++ }
++
++ PX_CUDA_CALLABLE PX_INLINE PxReal getSqrt3dx() const
++ {
++ return PxSqrt(3.0f) * gridSpacing;
++ }
++
++
++ /**
++ \brief (re)sets the structure to the default.
++ */
++ PX_INLINE void setToDefault()
++ {
++ *this = PxSparseGridParams();
++ }
++
++ /**
++ \brief Assignment operator
++ */
++ PX_INLINE void operator = (const PxSparseGridParams& params)
++ {
++ maxNumSubgrids = params.maxNumSubgrids;
++ subgridSizeX = params.subgridSizeX;
++ subgridSizeY = params.subgridSizeY;
++ subgridSizeZ = params.subgridSizeZ;
++ gridSpacing = params.gridSpacing;
++ haloSize = params.haloSize;
++ }
++
++ PxU32 maxNumSubgrids; //!< Maximum number of subgrids
++ PxReal gridSpacing; //!< Grid spacing for the grid
++ PxU16 subgridSizeX; //!< Subgrid resolution in x dimension (must be an even number)
++ PxU16 subgridSizeY; //!< Subgrid resolution in y dimension (must be an even number)
++ PxU16 subgridSizeZ; //!< Subgrid resolution in z dimension (must be an even number)
++ PxU16 haloSize; //!< Number of halo cell layers around every subgrid cell. Only 0 and 1 are valid values
++ };
++
++
++ #if !PX_DOXYGEN
++ } // namespace physx
++ #endif
++
++ #endif