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diff --git a/PhysX_3.4/Samples/SampleFramework/renderer/include/RendererIndexBuffer.h b/PhysX_3.4/Samples/SampleFramework/renderer/include/RendererIndexBuffer.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_INDEXBUFFER_H
+#define RENDERER_INDEXBUFFER_H
+
+#include <RendererConfig.h>
+#include "RendererInteropableBuffer.h"
+
+namespace SampleRenderer
+{
+
+	class RendererIndexBufferDesc;
+
+	class RendererIndexBuffer: public RendererInteropableBuffer
+	{
+		friend class RendererMesh;
+		friend class GLES2Renderer;
+	public:
+		enum Format
+		{
+			FORMAT_UINT16 = 0,
+			FORMAT_UINT32,
+
+			NUM_FORMATS
+		}_Format;
+
+		enum Hint
+		{
+			HINT_STATIC = 0,
+			HINT_DYNAMIC,
+		}_Hint;
+
+	public:
+		static PxU32 getFormatByteSize(Format format);
+
+	protected:
+		RendererIndexBuffer(const RendererIndexBufferDesc &desc);
+		virtual ~RendererIndexBuffer(void);
+
+	public:
+		void release(void) { delete this; }
+
+		Hint   getHint(void) const;
+		Format getFormat(void) const;
+		PxU32  getMaxIndices(void) const;
+
+	public:
+		virtual void *lock(void) = 0;
+		virtual void  unlock(void) = 0;
+
+	private:
+		virtual void bind(void) const = 0;
+		virtual void unbind(void) const = 0;
+
+		RendererIndexBuffer &operator=(const RendererIndexBuffer &) { return *this; }
+
+	protected:
+		const Hint   m_hint;
+		const Format m_format;
+		PxU32        m_maxIndices;
+	};
+
+} // namespace SampleRenderer
+
+#endif