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diff --git a/PhysX_3.4/Source/PhysXCooking/src/mesh/RTreeCooking.h b/PhysX_3.4/Source/PhysXCooking/src/mesh/RTreeCooking.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.  
+
+#include "CmPhysXCommon.h"
+#include "GuMeshData.h"
+#include "PxCooking.h"
+#include "PsArray.h"
+#include "GuRTree.h"
+
+namespace physx
+{
+	struct RTreeCooker
+	{
+		struct RemapCallback // a callback to convert indices from triangle to LeafTriangles or other uses
+		{
+            virtual ~RemapCallback() {}
+			virtual void remap(PxU32* rtreePtr, PxU32 start, PxU32 leafCount) = 0;
+		};
+
+		// triangles will be remapped so that newIndex = resultPermute[oldIndex]
+		static void buildFromTriangles(
+			Gu::RTree& resultTree, const PxVec3* verts, PxU32 numVerts, const PxU16* tris16, const PxU32* tris32, PxU32 numTris,
+			Ps::Array<PxU32>& resultPermute, RemapCallback* rc, PxReal sizePerfTradeOff01, PxMeshCookingHint::Enum hint);
+	};
+}