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| author | git perforce import user <a@b> | 2016-10-25 12:29:14 -0600 |
|---|---|---|
| committer | Sheikh Dawood Abdul Ajees <Sheikh Dawood Abdul Ajees> | 2016-10-25 18:56:37 -0500 |
| commit | 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 (patch) | |
| tree | fa6485c169e50d7415a651bf838f5bcd0fd3bfbd /PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h | |
| download | physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.tar.xz physx-3.4-3dfe2108cfab31ba3ee5527e217d0d8e99a51162.zip | |
Initial commit:
PhysX 3.4.0 Update @ 21294896
APEX 1.4.0 Update @ 21275617
[CL 21300167]
Diffstat (limited to 'PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h')
| -rw-r--r-- | PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h b/PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h new file mode 100644 index 00000000..224b5a8b --- /dev/null +++ b/PhysX_3.4/Source/LowLevelParticles/src/PtConfig.h @@ -0,0 +1,121 @@ +// This code contains NVIDIA Confidential Information and is disclosed to you +// under a form of NVIDIA software license agreement provided separately to you. +// +// Notice +// NVIDIA Corporation and its licensors retain all intellectual property and +// proprietary rights in and to this software and related documentation and +// any modifications thereto. Any use, reproduction, disclosure, or +// distribution of this software and related documentation without an express +// license agreement from NVIDIA Corporation is strictly prohibited. +// +// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES +// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO +// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, +// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. +// +// Information and code furnished is believed to be accurate and reliable. +// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such +// information or for any infringement of patents or other rights of third parties that may +// result from its use. No license is granted by implication or otherwise under any patent +// or patent rights of NVIDIA Corporation. Details are subject to change without notice. +// This code supersedes and replaces all information previously supplied. +// NVIDIA Corporation products are not authorized for use as critical +// components in life support devices or systems without express written approval of +// NVIDIA Corporation. +// +// Copyright (c) 2008-2016 NVIDIA Corporation. All rights reserved. +// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. +// Copyright (c) 2001-2004 NovodeX AG. All rights reserved. + +#ifndef PT_CONFIG_H +#define PT_CONFIG_H + +#include "PxPhysXConfig.h" +#if PX_USE_PARTICLE_SYSTEM_API + +#include "PtParticleSystemFlags.h" + +// Marker for fluid particles with no collision constraints +#define PT_NO_CONSTRAINT PT_PARTICLE_SYSTEM_PARTICLE_LIMIT + +// Needs to be addressable with PxU16 Particle::hashKey +// - Ps::nextPowerOf2((PXD_PARTICLE_SYSTEM_HASH_KEY_LIMIT + 1)) must be addressable +// through PxU16 Particle::hashKey, see and PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY +// Dynamics::updatePacket() +#define PT_PARTICLE_SYSTEM_HASH_KEY_LIMIT 0x7ffe + +// Size of particle packet hash table. +// - Must be a power of 2 +// - Must be at least as large as PT_PARTICLE_SYSTEM_PACKET_LIMIT (see further below), but should be larger for the hash +// to be efficient. +// - Must to be addressable through PxU16 Pt::Particle::hashKey. +#define PT_PARTICLE_SYSTEM_PACKET_HASH_SIZE 1024 + +// One larger than PT_PARTICLE_SYSTEM_PACKET_HASH_SIZE to fit a special cell for overflow particles. +#define PT_PARTICLE_SYSTEM_PACKET_HASH_BUFFER_SIZE 1025 + +// Index of special overflow packet +#define PT_PARTICLE_SYSTEM_OVERFLOW_INDEX 1024 + +// Maximum number of particle packets (should be smaller than hash size since a full hash table is not efficient) +#define PT_PARTICLE_SYSTEM_PACKET_LIMIT 924 + +// Slack for building the triangle packet hash. Has to be bigger than any epsilons used in collision detection. +#define PT_PARTICLE_SYSTEM_COLLISION_SLACK 1.0e-3f + +// Maximum number of fluid particles in a packet that can be handled at a time +#define PT_SUBPACKET_PARTICLE_LIMIT 512 +// If the number of particles in a packet and the number of particles for each neighboring halo region +// are below this threshold, then no local hash will be constructed and each particle of one packet will be +// tested against each particle of the other packet (for particle-particle interaction only). +// +// Note: Has to be smaller or equal to PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY +#define PT_BRUTE_FORCE_PARTICLE_THRESHOLD 100 +// If the number of particles in a packet section and the number of particles in a neighboring halo +// region are below this threshold, then no local hash will be constructed and each particle of the +// packet section will be tested against each particle of the halo region (for particle-particle interaction only). +// +// Note: Has to be smaller or equal to PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY +#define PT_BRUTE_FORCE_PARTICLE_THRESHOLD_HALO_VS_SECTION 200 + +// Maximum number of fluid particles in a packet that can be handled at a time for dividing +// a packet into sections and reordering the particles accordingly +#define PT_SUBPACKET_PARTICLE_LIMIT_PACKET_SECTIONS PT_SUBPACKET_PARTICLE_LIMIT + +// Maximum number of fluid particles in a packet that can be handled at a time for SPH dynamics +// calculations, i.e., computation of density & force +// - Ps::nextPowerOf2((PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY + 1)) must be addressable +// through PxU16 Particle::hashKey, see Dynamics::updatePacket(). +#define PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY PT_SUBPACKET_PARTICLE_LIMIT + +// loacl hash bucket size, should equal nextPowerOfTwo(PT_SUBPACKET_PARTICLE_LIMIT_FORCE_DENSITY + 1) +#define PT_SUBPACKET_PARTICLE_HASH_BUCKET_SIZE 512 + +// Maximum number of parallel tasks created for sph computation +#define PT_MAX_PARALLEL_TASKS_SPH 8 + +// Maximum number of fluid particles in a packet that can be handled at a time for velocity +// integration +#define PT_SUBPACKET_PARTICLE_LIMIT_VEL_INTEGRATION PT_SUBPACKET_PARTICLE_LIMIT + +// Maximum number of fluid particles in a packet that can be handled at a time for +// detecting and resolving collisions. +// - Must be smaller than PT_LOCAL_HASH_SIZE_MESH_COLLISION. +#define PT_SUBPACKET_PARTICLE_LIMIT_COLLISION 128 + +// Hash size for the local particle cell hash. +// - Must to be larger than PT_SUBPACKET_PARTICLE_LIMIT_COLLISION +// - Must be a power of 2 +// - Must be addressable with PxU16 Particle::hashKey +#define PT_LOCAL_HASH_SIZE_MESH_COLLISION 256 + +// Number of fluid packet shapes to run in parallel during collision update. +#define PT_NUM_PACKETS_PARALLEL_COLLISION 8 + +// Initial size of triangle mesh collision buffer (for storing indices of colliding triangles) +#define PT_INITIAL_MESH_COLLISION_BUFFER_SIZE 1024 + +#define PT_USE_SIMD_CONVEX_COLLISION 1 + +#endif // PX_USE_PARTICLE_SYSTEM_API +#endif // PT_CONFIG_H |