120 lines
3.9 KiB
C++
120 lines
3.9 KiB
C++
// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions
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// are met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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// * Neither the name of NVIDIA CORPORATION nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Copyright (c) 2008-2023 NVIDIA Corporation. All rights reserved.
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// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
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// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
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#ifndef PX_SPARSE_GRID_PARAMS_H
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#define PX_SPARSE_GRID_PARAMS_H
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/** \addtogroup physics
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@{ */
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#include "foundation/PxSimpleTypes.h"
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#include "foundation/PxMath.h"
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#if !PX_DOXYGEN
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namespace physx
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{
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#endif
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/**
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\brief Parameters to define the sparse grid settings like grid spacing, maximal number of subgrids etc.
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*/
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struct PxSparseGridParams
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{
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/**
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\brief Default constructor.
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*/
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PX_INLINE PxSparseGridParams()
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{
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maxNumSubgrids = 512;
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subgridSizeX = 32;
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subgridSizeY = 32;
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subgridSizeZ = 32;
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gridSpacing = 0.2f;
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haloSize = 1;
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}
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/**
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\brief Copy constructor.
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*/
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PX_CUDA_CALLABLE PX_INLINE PxSparseGridParams(const PxSparseGridParams& params)
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{
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maxNumSubgrids = params.maxNumSubgrids;
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subgridSizeX = params.subgridSizeX;
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subgridSizeY = params.subgridSizeY;
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subgridSizeZ = params.subgridSizeZ;
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gridSpacing = params.gridSpacing;
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haloSize = params.haloSize;
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}
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PX_CUDA_CALLABLE PX_INLINE PxU32 getNumCellsPerSubgrid() const
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{
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return subgridSizeX * subgridSizeY * subgridSizeZ;
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}
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PX_CUDA_CALLABLE PX_INLINE PxReal getSqrt3dx() const
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{
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return PxSqrt(3.0f) * gridSpacing;
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}
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/**
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\brief (re)sets the structure to the default.
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*/
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PX_INLINE void setToDefault()
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{
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*this = PxSparseGridParams();
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}
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/**
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\brief Assignment operator
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*/
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PX_INLINE void operator = (const PxSparseGridParams& params)
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{
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maxNumSubgrids = params.maxNumSubgrids;
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subgridSizeX = params.subgridSizeX;
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subgridSizeY = params.subgridSizeY;
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subgridSizeZ = params.subgridSizeZ;
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gridSpacing = params.gridSpacing;
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haloSize = params.haloSize;
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}
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PxU32 maxNumSubgrids; //!< Maximum number of subgrids
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PxReal gridSpacing; //!< Grid spacing for the grid
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PxU16 subgridSizeX; //!< Subgrid resolution in x dimension (must be an even number)
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PxU16 subgridSizeY; //!< Subgrid resolution in y dimension (must be an even number)
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PxU16 subgridSizeZ; //!< Subgrid resolution in z dimension (must be an even number)
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PxU16 haloSize; //!< Number of halo cell layers around every subgrid cell. Only 0 and 1 are valid values
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};
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#if !PX_DOXYGEN
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} // namespace physx
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#endif
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/** @} */
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#endif
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