diff --git a/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/HierarchicalZOcclusionCullFeature.cs b/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/HierarchicalZOcclusionCullFeature.cs
index 71e930a..10106ce 100644
--- a/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/HierarchicalZOcclusionCullFeature.cs
+++ b/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/HierarchicalZOcclusionCullFeature.cs
@@ -208,10 +208,10 @@ namespace X.Rendering.Feature
 
                 resizeX = Mathf.IsPowerOfTwo(viewportSize.x) ? viewportSize.x : Mathf.NextPowerOfTwo(viewportSize.x);
                 resizeY = Mathf.IsPowerOfTwo(viewportSize.y) ? viewportSize.y : Mathf.NextPowerOfTwo(viewportSize.y);
-                if (resizeX > viewportSize.x)
-                    resizeX /= 2;
-                if (resizeY > viewportSize.y)
-                    resizeY /= 2;
+                //if (resizeX > viewportSize.x)
+                //    resizeX /= 2;
+                //if (resizeY > viewportSize.y)
+                //    resizeY /= 2;
 
                 Vector2Int hardwareTextureSize = new Vector2Int(resizeX, resizeY);
                 mipLevelOffsets[0] = Vector2Int.zero;
@@ -443,11 +443,12 @@ namespace X.Rendering.Feature
                 }, filterMode: FilterMode.Point, name: depthPyramidNames[hizIndex]);
                 depthPyramidTexs[hizIndex] = hizBuffer;
 
-                var dispatchX = Mathf.CeilToInt(mip0SizeNOP.x / 64f);
-                var dispatchY = Mathf.CeilToInt(mip0SizeNOP.y / 64f);
+                var dispatchX = Mathf.CeilToInt(mipOffsetAndSizes[0].z / 64f);
+                var dispatchY = Mathf.CeilToInt(mipOffsetAndSizes[0].w / 64f);
                 cmd.SetComputeIntParam(settings.Spd, "mips", mipLevelCount);
                 cmd.SetComputeIntParam(settings.Spd, "numWorkGroups", dispatchX * dispatchY);
-
+                cmd.SetComputeVectorParam(settings.Spd, "inputTextureSize", new Vector4(mip0SizeNOP.x, mip0SizeNOP.y, 0, 0));
+                
 
                 cmd.SetComputeVectorArrayParam(settings.Spd, "_MipOffsetAndSizeArray", mipOffsetAndSizes);
 
diff --git a/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/Shaders/SPD.compute b/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/Shaders/SPD.compute
index 66dfc43..b871e70 100644
--- a/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/Shaders/SPD.compute
+++ b/Packages/com.unity.render-pipelines.universal@14.0.11/Runtime/OcclusionCulling/Shaders/SPD.compute
@@ -16,6 +16,15 @@
 #include "ffx/ffx_common_types.h"
 #include "Packages/com.unity.render-pipelines.core/ShaderLibrary/Common.hlsl"
 
+Texture2D<FfxFloat32>  _InputDepth;
+RWTexture2D<FfxFloat32>  _OutDepth;
+float4 _MipOffsetAndSizeArray[16];
+
+FfxUInt32   mips;
+FfxUInt32x2   inputTextureSize;
+FfxUInt32   numWorkGroups;
+FFX_GROUPSHARED FfxUInt32 spdCounter;
+RWTexture2D<FfxUInt32>    rw_internal_global_atomic;
 
 FFX_GROUPSHARED FfxFloat32 spdIntermediate[16][16];
 void SpdStoreIntermediate(FfxUInt32 x, FfxUInt32 y, FfxFloat32x4 value) {
@@ -52,9 +61,6 @@ FfxFloat16x4 SpdReduce4H(FfxFloat16x4 v0, FfxFloat16x4 v1, FfxFloat16x4 v2, FfxF
     return max(max(v0, v1), max(v2, v3));
     #endif
 }
-Texture2D<FfxFloat32>  _InputDepth;
-RWTexture2D<FfxFloat32>  _OutDepth;
-float4 _MipOffsetAndSizeArray[16];
 
 FfxFloat32x4 SpdLoad(FfxInt32x2 coordinate, FfxUInt32 slice)
 {
@@ -87,14 +93,12 @@ FfxFloat32x4 SpdLoadSourceImage(FfxInt32x2 coordinate, FfxUInt32 slice)
 
 FfxFloat32x4 SpdLoadSourceImageH(FfxInt32x2 coordinate, FfxUInt32 slice)
 {
-    return _InputDepth[coordinate].xxxx;
+    uint4 cur = _MipOffsetAndSizeArray[0];
+    float2 uv = coordinate / float2(cur.zw);
+    FfxInt32x2 uv2 = FfxInt32x2(uv * inputTextureSize);
+    return _InputDepth[uv2].xxxx;
 }
 
-FfxUInt32   mips;
-FfxUInt32   numWorkGroups;
-FFX_GROUPSHARED FfxUInt32 spdCounter;
-RWTexture2D<FfxUInt32>    rw_internal_global_atomic;
-
 void IncreaseAtomicCounter(FFX_PARAMETER_IN FfxUInt32 slice, FFX_PARAMETER_INOUT FfxUInt32 counter)
 {
     InterlockedAdd(rw_internal_global_atomic[FfxInt32x2(0, 0)] , 1, counter);