diff --git a/components/nif/niffile.cpp b/components/nif/niffile.cpp
index f70b9024f9..1a1bbd7217 100644
--- a/components/nif/niffile.cpp
+++ b/components/nif/niffile.cpp
@@ -153,6 +153,9 @@ static std::map<std::string,RecordFactoryEntry> makeFactory()
     factory["bhkRigidBody"]                 = {&construct <bhkRigidBody>                , RC_bhkRigidBody               };
     factory["bhkRigidBodyT"]                = {&construct <bhkRigidBody>                , RC_bhkRigidBodyT              };
     factory["BSLightingShaderProperty"]     = {&construct <BSLightingShaderProperty>    , RC_BSLightingShaderProperty   };
+    factory["NiSortAdjustNode"]             = {&construct <NiSortAdjustNode>            , RC_NiNode                     };
+    factory["NiClusterAccumulator"]         = {&construct <NiClusterAccumulator>        , RC_NiClusterAccumulator       };
+    factory["NiAlphaAccumulator"]           = {&construct <NiAlphaAccumulator>          , RC_NiAlphaAccumulator         };
     return factory;
 }
 
diff --git a/components/nif/node.hpp b/components/nif/node.hpp
index c01ba9b663..7e5bcdb3be 100644
--- a/components/nif/node.hpp
+++ b/components/nif/node.hpp
@@ -427,5 +427,39 @@ struct NiLODNode : public NiSwitchNode
     }
 };
 
+// Abstract
+struct NiAccumulator : Record
+{
+    void read(NIFStream *nif) override {}
+};
+
+// Node children sorters
+struct NiClusterAccumulator : NiAccumulator {};
+struct NiAlphaAccumulator : NiClusterAccumulator {};
+
+struct NiSortAdjustNode : NiNode
+{
+    enum SortingMode
+    {
+        SortingMode_Inherit,
+        SortingMode_Off,
+        SortingMode_Subsort
+    };
+
+    int mMode;
+    NiAccumulatorPtr mSubSorter;
+    void read(NIFStream *nif) override
+    {
+        NiNode::read(nif);
+        mMode = nif->getInt();
+        if (nif->getVersion() <= NIFStream::generateVersion(20,0,0,3))
+            mSubSorter.read(nif);
+    }
+    void post(NIFFile *nif) override
+    {
+        mSubSorter.post(nif);
+    }
+};
+
 } // Namespace
 #endif
diff --git a/components/nif/record.hpp b/components/nif/record.hpp
index b38186bd04..937ce1d1e9 100644
--- a/components/nif/record.hpp
+++ b/components/nif/record.hpp
@@ -140,7 +140,9 @@ enum RecordType
   RC_bhkListShape,
   RC_bhkRigidBody,
   RC_bhkRigidBodyT,
-  RC_BSLightingShaderProperty
+  RC_BSLightingShaderProperty,
+  RC_NiClusterAccumulator,
+  RC_NiAlphaAccumulator
 };
 
 /// Base class for all records
diff --git a/components/nif/recordptr.hpp b/components/nif/recordptr.hpp
index cc62d7b2e0..5ec00b0c92 100644
--- a/components/nif/recordptr.hpp
+++ b/components/nif/recordptr.hpp
@@ -153,6 +153,7 @@ struct bhkWorldObject;
 struct bhkShape;
 struct bhkSerializable;
 struct hkPackedNiTriStripsData;
+struct NiAccumulator;
 
 using NodePtr = RecordPtrT<Node>;
 using ExtraPtr = RecordPtrT<Extra>;
@@ -184,6 +185,7 @@ using NiCollisionObjectPtr = RecordPtrT<NiCollisionObject>;
 using bhkWorldObjectPtr = RecordPtrT<bhkWorldObject>;
 using bhkShapePtr = RecordPtrT<bhkShape>;
 using hkPackedNiTriStripsDataPtr = RecordPtrT<hkPackedNiTriStripsData>;
+using NiAccumulatorPtr = RecordPtrT<NiAccumulator>;
 
 using NodeList = RecordListT<Node>;
 using PropertyList = RecordListT<Property>;