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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) 2008-2020 NVIDIA Corporation. All rights reserved.
// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved.
// Copyright (c) 2001-2004 NovodeX AG. All rights reserved.
#pragma once
namespace nv
{
namespace cloth
{
/* helper functions shared between SwCloth and CuCloth */
template <typename Cloth>
void initialize(Cloth& cloth, const physx::PxVec4* pIt, const physx::PxVec4* pEnd)
{
// initialize particles bounding box
physx::PxVec4 lower = physx::PxVec4(FLT_MAX), upper = -lower;
for (; pIt != pEnd; ++pIt)
{
lower = lower.minimum(*pIt);
upper = upper.maximum(*pIt);
}
physx::PxVec4 center = (upper + lower) * 0.5f;
physx::PxVec4 extent = (upper - lower) * 0.5f;
cloth.mParticleBoundsCenter = reinterpret_cast<const physx::PxVec3&>(center);
cloth.mParticleBoundsHalfExtent = reinterpret_cast<const physx::PxVec3&>(extent);
cloth.mGravity = physx::PxVec3(0.0f);
cloth.mLogDamping = physx::PxVec3(0.0f);
cloth.mLinearLogDrag = physx::PxVec3(0.0f);
cloth.mAngularLogDrag = physx::PxVec3(0.0f);
cloth.mLinearInertia = physx::PxVec3(1.0f);
cloth.mAngularInertia = physx::PxVec3(1.0f);
cloth.mCentrifugalInertia = physx::PxVec3(1.0f);
cloth.mSolverFrequency = 300.0f;
cloth.mStiffnessFrequency = 10.0f;
cloth.mTargetMotion = physx::PxTransform(physx::PxIdentity);
cloth.mCurrentMotion = physx::PxTransform(physx::PxIdentity);
cloth.mLinearVelocity = physx::PxVec3(0.0f);
cloth.mAngularVelocity = physx::PxVec3(0.0f);
cloth.mIgnoreVelocityDiscontinuityNextFrame = false;
cloth.mPrevIterDt = 0.0f;
cloth.mIterDtAvg = MovingAverage(30);
cloth.mTetherConstraintLogStiffness = float(-FLT_MAX_EXP);
cloth.mTetherConstraintScale = 1.0f;
cloth.mMotionConstraintScale = 1.0f;
cloth.mMotionConstraintBias = 0.0f;
cloth.mMotionConstraintLogStiffness = float(-FLT_MAX_EXP);
cloth.mWind = physx::PxVec3(0.0f);
cloth.mDragLogCoefficient = 0.0f;
cloth.mLiftLogCoefficient = 0.0f;
cloth.mFluidDensity = 1.0f;
cloth.mEnableContinuousCollision = false;
cloth.mCollisionMassScale = 0.0f;
cloth.mFriction = 0.0f;
cloth.mSelfCollisionDistance = 0.0f;
cloth.mSelfCollisionLogStiffness = float(-FLT_MAX_EXP);
cloth.mSleepTestInterval = uint32_t(-1);
cloth.mSleepAfterCount = uint32_t(-1);
cloth.mSleepThreshold = 0.0f;
cloth.mSleepPassCounter = 0;
cloth.mSleepTestCounter = 0;
}
template <typename DstCloth, typename SrcCloth>
void copy(DstCloth& dstCloth, const SrcCloth& srcCloth)
{
dstCloth.mParticleBoundsCenter = srcCloth.mParticleBoundsCenter;
dstCloth.mParticleBoundsHalfExtent = srcCloth.mParticleBoundsHalfExtent;
dstCloth.mGravity = srcCloth.mGravity;
dstCloth.mLogDamping = srcCloth.mLogDamping;
dstCloth.mLinearLogDrag = srcCloth.mLinearLogDrag;
dstCloth.mAngularLogDrag = srcCloth.mAngularLogDrag;
dstCloth.mLinearInertia = srcCloth.mLinearInertia;
dstCloth.mAngularInertia = srcCloth.mAngularInertia;
dstCloth.mCentrifugalInertia = srcCloth.mCentrifugalInertia;
dstCloth.mSolverFrequency = srcCloth.mSolverFrequency;
dstCloth.mStiffnessFrequency = srcCloth.mStiffnessFrequency;
dstCloth.mTargetMotion = srcCloth.mTargetMotion;
dstCloth.mCurrentMotion = srcCloth.mCurrentMotion;
dstCloth.mLinearVelocity = srcCloth.mLinearVelocity;
dstCloth.mAngularVelocity = srcCloth.mAngularVelocity;
dstCloth.mPrevIterDt = srcCloth.mPrevIterDt;
dstCloth.mIterDtAvg = srcCloth.mIterDtAvg;
dstCloth.mTetherConstraintLogStiffness = srcCloth.mTetherConstraintLogStiffness;
dstCloth.mTetherConstraintScale = srcCloth.mTetherConstraintScale;
dstCloth.mMotionConstraintScale = srcCloth.mMotionConstraintScale;
dstCloth.mMotionConstraintBias = srcCloth.mMotionConstraintBias;
dstCloth.mMotionConstraintLogStiffness = srcCloth.mMotionConstraintLogStiffness;
dstCloth.mWind = srcCloth.mWind;
dstCloth.mDragLogCoefficient = srcCloth.mDragLogCoefficient;
dstCloth.mLiftLogCoefficient = srcCloth.mLiftLogCoefficient;
dstCloth.mEnableContinuousCollision = srcCloth.mEnableContinuousCollision;
dstCloth.mCollisionMassScale = srcCloth.mCollisionMassScale;
dstCloth.mFriction = srcCloth.mFriction;
dstCloth.mSelfCollisionDistance = srcCloth.mSelfCollisionDistance;
dstCloth.mSelfCollisionLogStiffness = srcCloth.mSelfCollisionLogStiffness;
dstCloth.mSleepTestInterval = srcCloth.mSleepTestInterval;
dstCloth.mSleepAfterCount = srcCloth.mSleepAfterCount;
dstCloth.mSleepThreshold = srcCloth.mSleepThreshold;
dstCloth.mSleepPassCounter = srcCloth.mSleepPassCounter;
dstCloth.mSleepTestCounter = srcCloth.mSleepTestCounter;
dstCloth.mUserData = srcCloth.mUserData;
}
} // namespace cloth
} // namespace nv
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