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diff --git a/PhysX_3.4/Source/LowLevelDynamics/src/DyConstraintPrep.h b/PhysX_3.4/Source/LowLevelDynamics/src/DyConstraintPrep.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) 2008-2016 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 DY_CONSTRAINTSHADER_H
+#define DY_CONSTRAINTSHADER_H
+
+#include "DyConstraint.h"
+
+#include "DySolverConstraintDesc.h"
+#include "PsArray.h"
+
+namespace physx
+{
+
+class PxcConstraintBlockStream;
+class PxsConstraintBlockManager;
+struct PxSolverBody;
+struct PxSolverBodyData;
+struct PxSolverConstraintDesc;
+
+namespace Dy
+{
+
+	static const PxU32 MAX_CONSTRAINT_ROWS = 12;
+
+struct SolverConstraintShaderPrepDesc
+{
+	const Constraint* constraint;
+	PxConstraintSolverPrep solverPrep;
+	const void* constantBlock;
+	PxU32 constantBlockByteSize;
+};
+
+SolverConstraintPrepState::Enum setupSolverConstraint4
+	(SolverConstraintShaderPrepDesc* PX_RESTRICT constraintShaderDescs,
+	PxSolverConstraintPrepDesc* PX_RESTRICT constraintDescs,
+		const PxReal dt, const PxReal recipdt, PxU32& totalRows,
+		 PxConstraintAllocator& allocator);
+
+SolverConstraintPrepState::Enum setupSolverConstraint4
+	(PxSolverConstraintPrepDesc* PX_RESTRICT constraintDescs,
+	const PxReal dt, const PxReal recipdt, PxU32& totalRows,
+	PxConstraintAllocator& allocator, PxU32 maxRows);
+
+PxU32 SetupSolverConstraint(SolverConstraintShaderPrepDesc& shaderDesc,
+							PxSolverConstraintPrepDesc& prepDesc,
+							   PxConstraintAllocator& allocator,
+							   PxReal dt, PxReal invdt);
+
+
+class ConstraintHelper
+{
+public:
+
+	static PxU32 setupSolverConstraint(
+		PxSolverConstraintPrepDesc& prepDesc,
+		PxConstraintAllocator& allocator,
+		PxReal dt, PxReal invdt);
+};
+
+}
+
+}
+
+#endif //DY_CONSTRAINTSHADER_H