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diff --git a/samples/VolumetricLightingTest/shaders/scene_VS.hlsl b/samples/VolumetricLightingTest/shaders/scene_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 %%
+*/
+
+////////////////////////////////////////////////////////////////////////////////
+// Constant Buffers
+
+cbuffer CameraCB : register( b0 )
+{
+    column_major float4x4 c_mViewProj   : packoffset(c0);
+    float3 c_vEyePos                    : packoffset(c4);
+    float c_fZNear                      : packoffset(c5);
+    float c_fZFar                       : packoffset(c5.y);
+};
+
+cbuffer ObjectCB : register( b1 )
+{
+    column_major float4x4 c_mObject : packoffset(c0);
+    float3 c_vObjectColor : packoffset(c4);
+};
+
+cbuffer LightCB : register( b2 )
+{
+    column_major float4x4 c_mLightViewProj  : packoffset(c0);
+    float3 c_vLightDirection                : packoffset(c4);
+    float c_fLightFalloffCosTheta           : packoffset(c4.w);
+    float3 c_vLightPos                      : packoffset(c5);
+    float c_fLightFalloffPower              : packoffset(c5.w);
+    float3 c_vLightColor                    : packoffset(c6);
+    float4 c_vLightAttenuationFactors       : packoffset(c7);
+    float c_fLightZNear                     : packoffset(c8);
+    float c_fLightZNFar                     : packoffset(c8.y);
+    float3 c_vSigmaExtinction               : packoffset(c9);
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// IO Structures
+
+struct VS_OUTPUT
+{
+    float4 ScreenP : SV_POSITION;
+    float4 P : TEXCOORD0;
+    float3 N : NORMAL0;
+};
+
+////////////////////////////////////////////////////////////////////////////////
+// Vertex Shader
+
+VS_OUTPUT main( uint id : SV_VERTEXID )
+{
+    VS_OUTPUT output;
+
+    // Faces
+    // +X, +Y, +Z, -X, -Y, -Z
+    // Vertices
+    // 0 ---15
+    // |   / |
+    // |  /  |
+    // | /   |
+    // 24--- 3
+    
+    uint face_idx = id / 6;
+    uint vtx_idx = id % 6;
+    float3 P;
+    P.x = ((vtx_idx % 3) == 2) ? -1 : 1;
+    P.y = ((vtx_idx % 3) == 1) ? -1 : 1;
+    P.z = 0;
+    if ((face_idx % 3) == 0)
+        P.yzx = P.xyz;
+    else if ((face_idx % 3) == 1)
+        P.xzy = P.xyz;
+    // else if ((face_idx % 3) == 2)
+    //    P.xyz = P.xyz;
+    P *= ((vtx_idx / 3) == 0) ? 1 : -1;
+    
+    float3 N;
+    N.x = ((face_idx % 3) == 0) ? 1 : 0;
+    N.y = ((face_idx % 3) == 1) ? 1 : 0;
+    N.z = ((face_idx % 3) == 2) ? 1 : 0;
+    N *= ((face_idx / 3) == 0) ? 1 : -1;
+    P += N;
+
+    output.P = mul(c_mObject, float4(P, 1));
+    output.ScreenP = mul(c_mViewProj, output.P);
+    output.N = mul(c_mObject, float4(N, 0)).xyz;
+    return output;
+}