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diff --git a/src/shaders/DownsampleDepth_PS.hlsl b/src/shaders/DownsampleDepth_PS.hlsl
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+++ b/src/shaders/DownsampleDepth_PS.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 %%
+
+- SAMPLEMODE:
+    - SAMPLEMODE_SINGLE
+    - SAMPLEMODE_MSAA
+
+%% MUX_END %%
+*/
+
+#include "ShaderCommon.h"
+
+#if (SAMPLEMODE == SAMPLEMODE_SINGLE)
+Texture2D<float> tDepthMap : register(t0);
+#elif (SAMPLEMODE == SAMPLEMODE_MSAA)
+Texture2DMS<float> tDepthMap : register(t0);
+#endif
+
+uint Unused(uint input)
+{
+	return input;
+}
+
+float main(
+	VS_QUAD_OUTPUT input
+	, uint sampleID : SV_SAMPLEINDEX 
+	) : SV_DEPTH
+{
+	float2 jitter = float2(0.0f, 0.0f);
+	uint2 pixelIdx = uint2(input.vPos.xy);
+	if ( (pixelIdx.x+pixelIdx.y)%2 )
+	{
+		jitter.xy = g_vJitterOffset.xy;
+	}
+	else
+	{
+		jitter.xy = g_vJitterOffset.yx;
+	}
+
+#if defined(__PSSL__)
+	Unused(sampleID);//Fix a compiler warning with pssl.
+	float2 tc = (floor(input.vTex.xy*g_vOutputViewportSize) + GetViVjLinearSample() + jitter)*g_vOutputSize_Inv;
+#else
+	float2 tc = (EvaluateAttributeAtSample(input.vTex.xy, sampleID)*g_vOutputViewportSize + jitter)*g_vOutputSize_Inv;
+#endif
+
+#if (SAMPLEMODE == SAMPLEMODE_SINGLE)
+	return tDepthMap.SampleLevel(sPoint, tc, 0).x;
+#elif (SAMPLEMODE == SAMPLEMODE_MSAA)
+	int2 load_tc = int2(tc*g_vOutputSize);
+	return tDepthMap.Load(load_tc, 0).x;
+#endif
+}