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// 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 PARTICLE_EMITTER_PRESSURE_H
#define PARTICLE_EMITTER_PRESSURE_H
//----------------------------------------------------------------------------//
#include "ParticleEmitter.h"
//----------------------------------------------------------------------------//
class ParticleEmitterPressure : public ParticleEmitter
{
public:
ParticleEmitterPressure(ParticleEmitter::Shape::Enum shape, PxReal extentX, PxReal extentY, PxReal spacing);
virtual ~ParticleEmitterPressure();
virtual void stepInternal(ParticleData& particles, PxReal dt, const PxVec3& externalAcceleration, PxReal maxParticleVelocity);
void setMaxRate(PxReal v) { mMaxRate = v; }
PxReal getMaxRate() const { return mMaxRate; }
private:
struct SiteData
{
PxVec3 position;
PxVec3 velocity;
bool predecessor;
PxReal noiseZ;
};
private:
PxVec3 mSimulationAcceleration;
PxReal mSimulationMaxVelocity;
void clearPredecessors();
bool stepEmissionSite(
SiteData& siteData,
ParticleData& spawnData,
PxU32& spawnNum,
const PxU32 spawnMax,
const PxVec3 &sitePos,
const PxVec3 &siteVel,
const PxReal dt);
void predictPredecessorPos(SiteData& siteData, PxReal dt);
void updatePredecessor(SiteData& siteData, const PxVec3& position, const PxVec3& velocity);
private:
std::vector<SiteData> mSites;
PxReal mMaxZNoiseOffset;
PxReal mMaxRate;
};
//----------------------------------------------------------------------------//
#endif // PARTICLE_EMITTER_PRESSURE_H
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