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diff --git a/PhysX_3.4/Samples/SampleFramework/renderer/include/RendererClothShape.h b/PhysX_3.4/Samples/SampleFramework/renderer/include/RendererClothShape.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.
+
+#ifndef RENDERER_CLOTH_SHAPE_H
+#define RENDERER_CLOTH_SHAPE_H
+
+#include <RendererShape.h>
+#include "gpu/PxGpu.h"
+
+// fwd to avoid including cuda.h
+#if defined(__x86_64) || defined(AMD64) || defined(_M_AMD64)
+typedef unsigned long long CUdeviceptr;
+#else
+typedef unsigned int CUdeviceptr;
+#endif
+
+
+namespace SampleRenderer
+{
+	class RendererVertexBuffer;
+	class RendererIndexBuffer;
+
+	class RendererClothShape : public RendererShape
+	{
+		enum VertexBufferEnum
+		{
+			STATIC_VB,
+			DYNAMIC_VB,
+			NUM_VERTEX_BUFFERS
+		};
+	public:
+		RendererClothShape(Renderer& renderer, 
+			const PxVec3* verts, PxU32 numVerts,
+			const PxVec3* normals,
+			const PxReal* uvs,
+			const PxU16* faces, PxU32 numFaces, bool flipWinding=false,
+			PxCudaContextManager* ctxMgr=NULL);
+        
+		// must acquire the cuda context and map buffers before calling
+		bool update(CUdeviceptr srcVerts, PxU32 numVerts);
+        void update(const PxVec3* verts, PxU32 numVerts, const PxVec3* normals);
+
+		// helper functions to map the buffers for multiple shapes 
+		// at once because interop mapping has a large per-call overhead
+		// thread must acquire the cuda context before calling
+		static void mapShapes(RendererClothShape** shapes, PxU32 n);
+		static void unmapShapes(RendererClothShape** shapes, PxU32 n);
+
+		virtual ~RendererClothShape();
+
+		bool isInteropEnabled() const { return m_ctxMgr != NULL; }
+
+	private:
+		RendererVertexBuffer*	m_vertexBuffer[NUM_VERTEX_BUFFERS];
+		RendererIndexBuffer*	m_indexBuffer;
+
+		PxU32 m_numFaces;
+
+		PxCudaContextManager* m_ctxMgr;
+	};
+
+} // namespace SampleRenderer
+
+#endif