NvCloth library v1.0.0

1 files changed, 203 insertions, 0 deletions

diff --git a/NvCloth/src/SwCloth.h b/NvCloth/src/SwCloth.h
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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) 2008-2017 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
+
+#include "NvCloth/Range.h"
+#include "NvCloth/PhaseConfig.h"
+#include "MovingAverage.h"
+#include "IndexPair.h"
+#include "Vec4T.h"
+#include <foundation/PxVec4.h>
+#include <foundation/PxVec3.h>
+#include <foundation/PxTransform.h>
+
+namespace nv
+{
+
+namespace cloth
+{
+
+class SwFabric;
+class SwFactory;
+
+struct SwConstraints
+{
+	void pop()
+	{
+		if (!mTarget.empty())
+		{
+			mStart.swap(mTarget);
+			mTarget.resize(0);
+		}
+	}
+
+	Vector<physx::PxVec4>::Type mStart;
+	Vector<physx::PxVec4>::Type mTarget;
+};
+
+class SwCloth
+{
+	SwCloth& operator = (const SwCloth&); // not implemented
+	struct SwContextLock
+	{
+		SwContextLock(const SwFactory&)
+		{
+		}
+	};
+
+  public:
+	typedef SwFactory FactoryType;
+	typedef SwFabric FabricType;
+	typedef SwContextLock ContextLockType;
+
+	typedef Vector<physx::PxVec3>::Type& MappedVec3fVectorType;
+	typedef Vector<physx::PxVec4>::Type& MappedVec4fVectorType;
+	typedef Vector<IndexPair>::Type& MappedIndexVectorType;
+	typedef Vector<uint32_t>::Type& MappedMaskVectorType;
+
+	SwCloth(SwFactory&, SwFabric&, Range<const physx::PxVec4>);
+	SwCloth(SwFactory&, const SwCloth&);
+	~SwCloth(); // not virtual on purpose
+
+  public:
+	bool isSleeping() const
+	{
+		return mSleepPassCounter >= mSleepAfterCount;
+	}
+	void wakeUp()
+	{
+		mSleepPassCounter = 0;
+	}
+
+	void notifyChanged()
+	{
+	}
+
+	void setParticleBounds(const float*);
+
+	Range<physx::PxVec4> push(SwConstraints&);
+	static void clear(SwConstraints&);
+
+	static Range<const physx::PxVec3> clampTriangleCount(Range<const physx::PxVec3>, uint32_t);
+
+  public:
+	SwFactory& mFactory;
+	SwFabric& mFabric;
+
+	bool mClothCostDirty;
+
+	// current and previous-iteration particle positions
+	Vector<physx::PxVec4>::Type mCurParticles;
+	Vector<physx::PxVec4>::Type mPrevParticles;
+
+	physx::PxVec3 mParticleBoundsCenter;
+	physx::PxVec3 mParticleBoundsHalfExtent;
+
+	physx::PxVec3 mGravity;
+	physx::PxVec3 mLogDamping;
+	physx::PxVec3 mLinearLogDrag;
+	physx::PxVec3 mAngularLogDrag;
+	physx::PxVec3 mLinearInertia;
+	physx::PxVec3 mAngularInertia;
+	physx::PxVec3 mCentrifugalInertia;
+	float mSolverFrequency;
+	float mStiffnessFrequency;
+
+	physx::PxTransform mTargetMotion;
+	physx::PxTransform mCurrentMotion;
+	physx::PxVec3 mLinearVelocity;
+	physx::PxVec3 mAngularVelocity;
+
+	float mPrevIterDt;
+	MovingAverage mIterDtAvg;
+
+	Vector<PhaseConfig>::Type mPhaseConfigs; // transformed!
+
+	// tether constraints stuff
+	float mTetherConstraintLogStiffness;
+	float mTetherConstraintScale;
+
+	// motion constraints stuff
+	SwConstraints mMotionConstraints;
+	float mMotionConstraintScale;
+	float mMotionConstraintBias;
+	float mMotionConstraintLogStiffness;
+
+	// separation constraints stuff
+	SwConstraints mSeparationConstraints;
+
+	// particle acceleration stuff
+	Vector<physx::PxVec4>::Type mParticleAccelerations;
+
+	// wind
+	physx::PxVec3 mWind;
+	float mDragLogCoefficient;
+	float mLiftLogCoefficient;
+
+	// collision stuff
+	Vector<IndexPair>::Type mCapsuleIndices;
+	Vector<physx::PxVec4>::Type mStartCollisionSpheres;
+	Vector<physx::PxVec4>::Type mTargetCollisionSpheres;
+	Vector<uint32_t>::Type mConvexMasks;
+	Vector<physx::PxVec4>::Type mStartCollisionPlanes;
+	Vector<physx::PxVec4>::Type mTargetCollisionPlanes;
+	Vector<physx::PxVec3>::Type mStartCollisionTriangles;
+	Vector<physx::PxVec3>::Type mTargetCollisionTriangles;
+	bool mEnableContinuousCollision;
+	float mCollisionMassScale;
+	float mFriction;
+
+	// virtual particles
+	Vector<Vec4us>::Type mVirtualParticleIndices;
+	Vector<physx::PxVec4>::Type mVirtualParticleWeights;
+	uint32_t mNumVirtualParticles;
+
+	// self collision
+	float mSelfCollisionDistance;
+	float mSelfCollisionLogStiffness;
+
+	Vector<uint32_t>::Type mSelfCollisionIndices;
+
+	Vector<physx::PxVec4>::Type mRestPositions;
+
+	// sleeping
+	uint32_t mSleepTestInterval; // how often to test for movement
+	uint32_t mSleepAfterCount;   // number of tests to pass before sleep
+	float mSleepThreshold;       // max movement delta to pass test
+	uint32_t mSleepPassCounter;  // how many tests passed
+	uint32_t mSleepTestCounter;  // how many iterations since tested
+
+	// unused for CPU simulation
+	void* mUserData;
+
+};
+
+} // namespace cloth
+}