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//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions
// are met:
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of NVIDIA CORPORATION nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Copyright (c) 2008-2018 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 PX_PHYSICS_SCP_PARTICLE_SYSTEM_CORE
#define PX_PHYSICS_SCP_PARTICLE_SYSTEM_CORE
#include "CmPhysXCommon.h"
#include "PxPhysXConfig.h"
#if PX_USE_PARTICLE_SYSTEM_API
#include "PsArray.h"
#include "CmBitMap.h"
#include "ScActorCore.h"
#include "PxFiltering.h"
#include "PtParticleSystemCore.h"
#include "particles/PxParticleBaseFlag.h"
#include "particles/PxParticleFluidReadData.h"
namespace physx
{
class PxParticleCreationData;
class PxParticleBase;
class PxvObjectFactory;
#if PX_SUPPORT_GPU_PHYSX
class PxParticleDeviceExclusiveAccess;
#endif
namespace Pt
{
class ParticleData;
class ParticleSystemState;
}
#define MAX_PARTICLES_PER_PARTICLE_SYSTEM PT_PARTICLE_SYSTEM_PARTICLE_LIMIT
#define SPH_KERNEL_RADIUS_MULT 2.0f
#define SPH_REST_DENSITY 1000.0f
namespace Sc
{
class ParticleSystemSim;
class ParticleSystemCore : public ActorCore
{
//= ATTENTION! =====================================================================================
// Changing the data layout of this class breaks the binary serialization format. See comments for
// PX_BINARY_SERIAL_VERSION. If a modification is required, please adjust the getBinaryMetaData
// function. If the modification is made on a custom branch, please change PX_BINARY_SERIAL_VERSION
// accordingly.
//==================================================================================================
public:
// PX_SERIALIZATION
ParticleSystemCore(const PxEMPTY) : ActorCore(PxEmpty), mSimulationFilterData(PxEmpty), mLLParameter(PxEmpty) {}
void exportExtraData(PxSerializationContext& stream);
void importExtraData(PxDeserializationContext& context);
static void getBinaryMetaData(PxOutputStream& stream);
//~PX_SERIALIZATION
ParticleSystemCore(const PxActorType::Enum&, PxU32, bool);
~ParticleSystemCore();
//---------------------------------------------------------------------------------
// External API
//---------------------------------------------------------------------------------
PxParticleBase* getPxParticleBase();
PxReal getStiffness() const;
void setStiffness(PxReal);
PxReal getViscosity() const;
void setViscosity(PxReal);
PxReal getDamping() const;
void setDamping(PxReal);
PxReal getParticleMass() const;
void setParticleMass(PxReal);
PxReal getRestitution() const;
void setRestitution(PxReal);
PxReal getDynamicFriction() const;
void setDynamicFriction(PxReal);
PxReal getStaticFriction() const;
void setStaticFriction(PxReal);
const PxFilterData& getSimulationFilterData() const;
void setSimulationFilterData(const PxFilterData& data);
void resetFiltering();
PxParticleBaseFlags getFlags() const;
void setFlags(PxParticleBaseFlags);
PxU32 getInternalFlags() const;
void setInternalFlags(PxParticleBaseFlags flags);
void notifyCpuFallback();
PxParticleReadDataFlags getParticleReadDataFlags() const;
void setParticleReadDataFlags(PxParticleReadDataFlags);
PxU32 getMaxParticles() const;
PxReal getMaxMotionDistance() const;
void setMaxMotionDistance(PxReal);
PxReal getRestOffset() const;
void setRestOffset(PxReal);
PxReal getContactOffset() const;
void setContactOffset(PxReal);
PxReal getGridSize() const;
void setGridSize(PxReal);
PxReal getRestParticleDistance() const;
void setRestParticleDistance(PxReal);
//---------------------------------------------------------------------------------------------------------------------------//
bool createParticles(const PxParticleCreationData& creationData);
void releaseParticles(PxU32 numParticles, const PxStrideIterator<const PxU32>& indices);
void releaseParticles();
void setPositions(PxU32 numParticles, const PxStrideIterator<const PxU32>& indexBuffer, const PxStrideIterator<const PxVec3>& positionBuffer);
void setVelocities(PxU32 numParticles, const PxStrideIterator<const PxU32>& indexBuffer, const PxStrideIterator<const PxVec3>& velocityBuffer);
void setRestOffsets(PxU32 numParticles, const PxStrideIterator<const PxU32>& indexBuffer, const PxStrideIterator<const PxF32>& restOffsetBuffer);
void addDeltaVelocities(const Cm::BitMap& bufferMap, const PxVec3* buffer, PxReal multiplier);
void getParticleReadData(PxParticleFluidReadData& readData) const;
PxU32 getParticleCount() const;
const Cm::BitMap& getParticleMap() const;
PxBounds3 getWorldBounds() const;
//---------------------------------------------------------------------------------------------------------------------------//
const PxVec3& getExternalAcceleration() const;
void setExternalAcceleration(const PxVec3&);
const PxPlane& getProjectionPlane() const;
void setProjectionPlane(const PxPlane& plane);
#if PX_SUPPORT_GPU_PHYSX
void enableDeviceExclusiveModeGpu();
PxParticleDeviceExclusiveAccess*
getDeviceExclusiveAccessGpu() const;
bool isGpu() const;
#endif
public:
// non-DDI methods:
Pt::ParticleSystemParameter& getLowLevelParameter() { return mLLParameter; }
ParticleSystemSim* getSim() const;
Pt::ParticleData* obtainStandaloneData();
void returnStandaloneData(Pt::ParticleData* stateBuffer);
void onOriginShift(const PxVec3& shift);
private:
Pt::ParticleSystemState& getParticleState();
const Pt::ParticleSystemState& getParticleState() const;
private:
Pt::ParticleData* mStandaloneData;
PxFilterData mSimulationFilterData; // The filter data
// External acceleration is set every frame for the LL sim object
PxVec3 mExternalAcceleration;
// Used for two way interaction executed in HL
PxReal mParticleMass;
// Merged particleSystem/particleFluid, API + internal parameter
Pt::ParticleSystemParameter mLLParameter;
};
} // namespace Sc
}
#endif // PX_USE_PARTICLE_SYSTEM_API
#endif // PX_PHYSICS_SCP_PARTICLE_SYSTEM_CORE
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