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++ // 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_PHYSICS_GPU_H
++ #define PX_PHYSICS_GPU_H
++
++
++ #include "cudamanager/PxCudaContext.h"
++ #include "cudamanager/PxCudaContextManager.h"
++
++ #include "foundation/PxSimpleTypes.h"
++ #include "foundation/PxVec4.h"
++ #include "PxParticleSystem.h"
++
++ #include "foundation/PxArray.h"
++ #include "PxParticleGpu.h"
++
++ #if !PX_DOXYGEN
++ namespace physx
++ {
++ #endif
++
++ #if PX_SUPPORT_GPU_PHYSX
++
++ class PxSceneDesc;
++
++ class PxIsosurfaceExtractor;
++ class PxSparseGridIsosurfaceExtractor;
++ class PxAnisotropyGenerator;
++ class PxSmoothedPositionGenerator;
++ class PxParticleNeighborhoodProvider;
++
++ class PxArrayConverter;
++ class PxSDFBuilder;
++ class PxDeformableSkinning;
++
++ struct PxIsosurfaceParams;
++ struct PxSparseGridParams;
++
++ class PxPhysicsGpu
++ {
++ public:
++ /**
++ \brief Creates an isosurface extractor operating on a dense grid
++
++ \param[in] cudaContextManager A cuda context manager
++ \param[in] worldBounds The bounds of the internally used dense grid. The isosurface can only be generated inside those bounds.
++ \param[in] cellSize The size of a single grid cell
++ \param[in] isosurfaceParams The isosurface parameters to control the isolevel etc.
++ \param[in] maxNumParticles The maximal number of particles that can be processed
++ \param[in] maxNumVertices The maximal number of vertices the output buffer can hold
++ \param[in] maxNumTriangles The maximal number of triangles the output buffer can hold
++ */
++ virtual PxIsosurfaceExtractor* createDenseGridIsosurfaceExtractor(PxCudaContextManager* cudaContextManager, const PxBounds3& worldBounds,
++ PxReal cellSize, const PxIsosurfaceParams& isosurfaceParams, PxU32 maxNumParticles, PxU32 maxNumVertices = 512 * 1024, PxU32 maxNumTriangles = 1024 * 1024) = 0;
++
++ /**
++ \brief Creates an isosurface extractor operating on a sparse grid
++
++ \param[in] cudaContextManager A cuda context manager
++ \param[in] sparseGridParams The sparse grid parameters defining the cell size etc.
++ \param[in] isosurfaceParams The isosurface parameters to control the isolevel etc.
++ \param[in] maxNumParticles The maximal number of particles that can be processed
++ \param[in] maxNumVertices The maximal number of vertices the output buffer can hold
++ \param[in] maxNumTriangles The maximal number of triangles the output buffer can hold
++ */
++ virtual PxSparseGridIsosurfaceExtractor* createSparseGridIsosurfaceExtractor(PxCudaContextManager* cudaContextManager, const PxSparseGridParams& sparseGridParams,
++ const PxIsosurfaceParams& isosurfaceParams, PxU32 maxNumParticles, PxU32 maxNumVertices = 512 * 1024, PxU32 maxNumTriangles = 1024 * 1024) = 0;
++
++
++ /**
++ \brief Creates an anisotropy generator
++
++ \param[in] cudaContextManager A cuda context manager
++ \param[in] maxNumParticles The number of particles
++ \param[in] anisotropyScale A uniform scaling factor to increase or decrease anisotropy
++ \param[in] minAnisotropy The minimum scaling factor in any dimension that anisotropy can have
++ \param[in] maxAnisotropy The maximum scaling factor in any dimension that anisotropy can have
++ */
++ virtual PxAnisotropyGenerator* createAnisotropyGenerator(PxCudaContextManager* cudaContextManager, PxU32 maxNumParticles,
++ PxReal anisotropyScale = 1.0f, PxReal minAnisotropy = 0.1f, PxReal maxAnisotropy = 2.0f) = 0;
++
++ /**
++ \brief Creates a smoothed position generator
++
++ \param[in] cudaContextManager A cuda context manager
++ \param[in] maxNumParticles The number of particles
++ \param[in] smoothingStrength Controls the strength of the smoothing effect
++ */
++ virtual PxSmoothedPositionGenerator* createSmoothedPositionGenerator(PxCudaContextManager* cudaContextManager, PxU32 maxNumParticles, PxReal smoothingStrength = 0.5f) = 0;
++
++
++ /**
++ \brief Creates a neighborhood provider
++
++ \param[in] cudaContextManager A cuda context manager
++ \param[in] maxNumParticles The number of particles
++ \param[in] cellSize The grid cell size. Should be equal to 2*contactOffset for PBD particle systems.
++ \param[in] maxNumSparseGridCells The maximal number of cells the internally used sparse grid can provide
++ */
++ virtual PxParticleNeighborhoodProvider* createParticleNeighborhoodProvider(PxCudaContextManager* cudaContextManager, const PxU32 maxNumParticles,
++ const PxReal cellSize, const PxU32 maxNumSparseGridCells = 262144) = 0;
++
++ /**
++ \brief Creates an array converter. If not used anymore, the caller needs to delete the returned pointer.
++
++ \param[in] cudaContextManager A cuda context manager
++ */
++ virtual PxArrayConverter* createArrayConverter(PxCudaContextManager* cudaContextManager) = 0;
++
++ /**
++ \brief Creates sdf builder to construct sdfs quickly on the GPU. If not used anymore, the caller needs to delete the returned pointer.
++
++ \param[in] cudaContextManager A cuda context manager
++
++ \return Pointer to a new instance of a PxSDFBuilder
++ */
++ virtual PxSDFBuilder* createSDFBuilder(PxCudaContextManager* cudaContextManager) = 0;
++
++ /**
++ \brief Creates a deformable skinning instance to perform skinning operations on the GPU. If not used anymore, the caller needs to delete the returned pointer.
++
++ \param[in] cudaContextManager A cuda context manager
++
++ \return Pointer to a new instance of a PxDeformableSkinning
++ */
++ virtual PxDeformableSkinning* createDeformableSkinning(PxCudaContextManager* cudaContextManager) = 0;
++
++ virtual void release() = 0;
++
++ virtual ~PxPhysicsGpu() {}
++ };
++
++ #endif
++
++ #if !PX_DOXYGEN
++ } // namespace physx
++ #endif
++
++ #endif