78 lines
3.0 KiB
C++
78 lines
3.0 KiB
C++
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// 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) 2008-2025 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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#include "PxgParticleNeighborhoodProvider.h"
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#include "PxgAlgorithms.h"
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#include "PxgSparseGridStandalone.h"
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#include "PxgAnisotropyData.h"
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#include "PxPhysics.h"
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#include "PxParticleSystem.h"
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#include "foundation/PxUserAllocated.h"
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#include "PxParticleGpu.h"
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#include "foundation/PxHashSet.h"
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#include "PxParticleGpu.h"
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#include "PxgParticleNeighborhoodProvider.h"
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#include "PxPhysXGpu.h"
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#include "PxvGlobals.h"
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#include "PxgKernelIndices.h"
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using namespace physx;
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PxgParticleNeighborhoodProvider::PxgParticleNeighborhoodProvider(PxgKernelLauncher& cudaContextManager, const PxU32 maxNumParticles, const PxReal particleContactOffset, const PxU32 maxNumSparseGridCells)
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{
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mKernelLauncher = cudaContextManager;
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PxSparseGridParams p;
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p.maxNumSubgrids = maxNumSparseGridCells;
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p.gridSpacing = 2.0f * particleContactOffset;
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p.subgridSizeX = 1;
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p.subgridSizeY = 1;
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p.subgridSizeZ = 1;
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mSparseGridBuilder.initialize(&mKernelLauncher, p, maxNumParticles, 0, true);
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}
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void PxgParticleNeighborhoodProvider::setCellProperties(PxU32 maxGridCells, PxReal cellSize)
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{
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PxU32 maxNumParticles = mSparseGridBuilder.getMaxParticles();
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mSparseGridBuilder.release();
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PxSparseGridParams p;
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p.maxNumSubgrids = maxGridCells;
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p.gridSpacing = cellSize;
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p.subgridSizeX = 1;
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p.subgridSizeY = 1;
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p.subgridSizeZ = 1;
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mSparseGridBuilder.initialize(&mKernelLauncher, p, maxNumParticles, 0, true);
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}
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