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diff --git a/samples/VolumetricLightingTest/shaders/quad_VS.hlsl b/samples/VolumetricLightingTest/shaders/quad_VS.hlsl
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+// This code contains NVIDIA Confidential Information and is disclosed 
+// under the Mutual Non-Disclosure Agreement. 
+// 
+// Notice 
+// ALL NVIDIA DESIGN SPECIFICATIONS AND CODE ("MATERIALS") ARE PROVIDED "AS IS" NVIDIA MAKES 
+// NO REPRESENTATIONS, WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO 
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTIES OF NONINFRINGEMENT, 
+// MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE. 
+// 
+// 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. No third party distribution is allowed unless 
+// expressly authorized by NVIDIA.  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) 2003 - 2016 NVIDIA Corporation. All rights reserved.
+//
+// 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.
+//
+
+/*
+Define the shader permutations for code generation
+%% MUX_BEGIN %%
+%% MUX_END %%
+*/
+
+struct VS_QUAD_OUTPUT
+{
+    float4 vPos : SV_POSITION;
+    sample float2 vTex : TEXCOORD0;
+};
+
+VS_QUAD_OUTPUT main(uint id : SV_VERTEXID)
+{
+    VS_QUAD_OUTPUT output;
+    output.vTex = float2((id << 1) & 2, id & 2);
+    output.vPos = float4(output.vTex * float2(2,-2) + float2(-1,1), 1, 1);
+    return output;
+}