diff --git a/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs b/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs
index e9157762458..e8be82747d1 100644
--- a/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs
+++ b/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs
@@ -218,7 +218,7 @@ unsafe struct ShaderVariablesGlobal
         public uint _NumTileClusteredX;
         public uint _NumTileClusteredY;
         public int _EnvSliceSize;
-        public float _Pad7;
+        public uint _EnableDecalLayers;
 
         // Subsurface scattering
         // Use float4 to avoid any packing issue between compute and pixel shaders
@@ -256,25 +256,10 @@ unsafe struct ShaderVariablesGlobal
         public int _RaytracingFrameIndex;  // Index of the current frame [0, 7]
         public uint _EnableRecursiveRayTracing;
 
-        // Probe Volumes
-        public Vector4 _ProbeVolumeAtlasResolutionAndSliceCount;
-        public Vector4 _ProbeVolumeAtlasResolutionAndSliceCountInverse;
-        public Vector4 _ProbeVolumeAtlasOctahedralDepthResolutionAndInverse;
-
-        public int _ProbeVolumeLeakMitigationMode;
-        public float _ProbeVolumeBilateralFilterWeightMin;
-        public float _ProbeVolumeBilateralFilterWeight;
-        public uint _EnableDecalLayers;
-
-        [HLSLArray(7, typeof(Vector4))]
-        public fixed float _ProbeVolumeAmbientProbeFallbackPackedCoeffs[7 * 4]; // 3 bands of SH, packed for storing global ambient probe lighting as fallback to probe volumes.
-
         public int _TransparentCameraOnlyMotionVectors;
-
         // Can be set to 0 to globally "disable" tessellation
         // Because the DepthPrepass doesn't have a DEBUG_DISPLAY variant, it is the only way to disable it for debug modes
         public float _GlobalTessellationFactorMultiplier;
-
         public float _SpecularOcclusionBlend;
         public float _DeExposureMultiplier;
     }
diff --git a/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs.hlsl b/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs.hlsl
index 3318ae78698..024ad9e0136 100644
--- a/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs.hlsl
+++ b/com.unity.render-pipelines.high-definition/Runtime/ShaderLibrary/ShaderVariablesGlobal.cs.hlsl
@@ -124,7 +124,7 @@ GLOBAL_CBUFFER_START(ShaderVariablesGlobal, b0)
     uint _NumTileClusteredX;
     uint _NumTileClusteredY;
     int _EnvSliceSize;
-    float _Pad7;
+    uint _EnableDecalLayers;
     float4 _ShapeParamsAndMaxScatterDists[16];
     float4 _TransmissionTintsAndFresnel0[16];
     float4 _WorldScalesAndFilterRadiiAndThicknessRemaps[16];
@@ -145,14 +145,6 @@ GLOBAL_CBUFFER_START(ShaderVariablesGlobal, b0)
     int _EnableRayTracedReflections;
     int _RaytracingFrameIndex;
     uint _EnableRecursiveRayTracing;
-    float4 _ProbeVolumeAtlasResolutionAndSliceCount;
-    float4 _ProbeVolumeAtlasResolutionAndSliceCountInverse;
-    float4 _ProbeVolumeAtlasOctahedralDepthResolutionAndInverse;
-    int _ProbeVolumeLeakMitigationMode;
-    float _ProbeVolumeBilateralFilterWeightMin;
-    float _ProbeVolumeBilateralFilterWeight;
-    uint _EnableDecalLayers;
-    float4 _ProbeVolumeAmbientProbeFallbackPackedCoeffs[7];
     int _TransparentCameraOnlyMotionVectors;
     float _GlobalTessellationFactorMultiplier;
     float _SpecularOcclusionBlend;