diff --git a/src/SA3D.Modeling/PublicAPI/net7.0/PublicAPI.Shipped.txt b/src/SA3D.Modeling/PublicAPI/net7.0/PublicAPI.Shipped.txt
index 4bd6c4b..dd7ee38 100644
--- a/src/SA3D.Modeling/PublicAPI/net7.0/PublicAPI.Shipped.txt
+++ b/src/SA3D.Modeling/PublicAPI/net7.0/PublicAPI.Shipped.txt
@@ -24,7 +24,6 @@ override SA3D.Modeling.File.Structs.MetaWeightVertex.GetHashCode() -> int
 override SA3D.Modeling.File.Structs.MetaWeightVertex.ToString() -> string!
 override SA3D.Modeling.Mesh.Attach.ToString() -> string!
 override SA3D.Modeling.Mesh.Basic.BasicAttach.CanWrite(SA3D.Modeling.ObjectData.Enums.ModelFormat format) -> bool
-override SA3D.Modeling.Mesh.Basic.BasicAttach.CheckHasWeights() -> bool
 override SA3D.Modeling.Mesh.Basic.BasicAttach.Clone() -> SA3D.Modeling.Mesh.Attach!
 override SA3D.Modeling.Mesh.Basic.BasicAttach.Format.get -> SA3D.Modeling.Mesh.AttachFormat
 override SA3D.Modeling.Mesh.Basic.BasicAttach.RecalculateBounds() -> void
@@ -283,6 +282,7 @@ SA3D.Modeling.File.MetaBlockType.Morph = 1179799373 -> SA3D.Modeling.File.MetaBl
 SA3D.Modeling.File.MetaBlockType.ObjectName = 1329744462 -> SA3D.Modeling.File.MetaBlockType
 SA3D.Modeling.File.MetaBlockType.Texture = 5784916 -> SA3D.Modeling.File.MetaBlockType
 SA3D.Modeling.File.MetaBlockType.Tool = 1280266068 -> SA3D.Modeling.File.MetaBlockType
+SA3D.Modeling.File.MetaBlockType.Weight = 1414022999 -> SA3D.Modeling.File.MetaBlockType
 SA3D.Modeling.File.MetaData
 SA3D.Modeling.File.MetaData.ActionName.get -> string?
 SA3D.Modeling.File.MetaData.ActionName.set -> void
@@ -294,6 +294,7 @@ SA3D.Modeling.File.MetaData.Description.set -> void
 SA3D.Modeling.File.MetaData.Labels.get -> System.Collections.Generic.Dictionary<uint, string!>!
 SA3D.Modeling.File.MetaData.Labels.set -> void
 SA3D.Modeling.File.MetaData.MetaData() -> void
+SA3D.Modeling.File.MetaData.MetaWeights.get -> System.Collections.Generic.List<SA3D.Modeling.File.Structs.MetaWeightNode>!
 SA3D.Modeling.File.MetaData.MorphFiles.get -> System.Collections.Generic.List<string!>!
 SA3D.Modeling.File.MetaData.ObjectName.get -> string?
 SA3D.Modeling.File.MetaData.ObjectName.set -> void
@@ -1275,7 +1276,9 @@ SA3D.Modeling.Mesh.Weighted.WeightedMesh.Label.get -> string?
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.Label.set -> void
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.Materials.get -> SA3D.Modeling.Mesh.Buffer.BufferMaterial[]!
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.RootIndices.get -> System.Collections.Generic.HashSet<int>!
-SA3D.Modeling.Mesh.Weighted.WeightedMesh.ToAttach(SA3D.Modeling.Mesh.AttachFormat format, bool optimize, bool ignoreWeights) -> SA3D.Modeling.Mesh.Attach!
+SA3D.Modeling.Mesh.Weighted.WeightedMesh.TexcoordPrecisionLevel.get -> byte
+SA3D.Modeling.Mesh.Weighted.WeightedMesh.TexcoordPrecisionLevel.set -> void
+SA3D.Modeling.Mesh.Weighted.WeightedMesh.ToAttach(SA3D.Modeling.Mesh.AttachFormat format, bool optimize) -> SA3D.Modeling.Mesh.Attach!
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.TriangleSets.get -> SA3D.Modeling.Mesh.Buffer.BufferCorner[]![]!
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.Vertices.get -> SA3D.Modeling.Mesh.Weighted.WeightedVertex[]!
 SA3D.Modeling.Mesh.Weighted.WeightedMesh.WriteSpecular.get -> bool
@@ -1520,13 +1523,16 @@ SA3D.Modeling.ObjectData.Node.CheckHasTreeWeightedMesh() -> bool
 SA3D.Modeling.ObjectData.Node.Child.get -> SA3D.Modeling.ObjectData.Node?
 SA3D.Modeling.ObjectData.Node.ChildCount.get -> int
 SA3D.Modeling.ObjectData.Node.ClearAttachesFromTree() -> void
-SA3D.Modeling.ObjectData.Node.ConvertAttachFormat(SA3D.Modeling.Mesh.AttachFormat newAttachFormat, SA3D.Modeling.Mesh.Weighted.BufferMode bufferMode, bool optimize, bool ignoreWeights = false, bool forceUpdate = false, bool updateBuffer = false) -> void
+SA3D.Modeling.ObjectData.Node.ClearWeldingsFromTree() -> void
+SA3D.Modeling.ObjectData.Node.ConvertAttachFormat(SA3D.Modeling.Mesh.AttachFormat newAttachFormat, SA3D.Modeling.Mesh.Weighted.BufferMode bufferMode, bool optimize, bool forceUpdate = false, bool updateBuffer = false) -> void
 SA3D.Modeling.ObjectData.Node.DeepAttachCopy() -> SA3D.Modeling.ObjectData.Node!
 SA3D.Modeling.ObjectData.Node.DeepSimpleCopy() -> SA3D.Modeling.ObjectData.Node!
 SA3D.Modeling.ObjectData.Node.Detach() -> void
 SA3D.Modeling.ObjectData.Node.DetachChildren(bool remainSiblings) -> void
 SA3D.Modeling.ObjectData.Node.DetachSuccessors(bool remainSiblings) -> void
 SA3D.Modeling.ObjectData.Node.Duplicate() -> SA3D.Modeling.ObjectData.Node!
+SA3D.Modeling.ObjectData.Node.EnsurePositiveEulerAngles() -> void
+SA3D.Modeling.ObjectData.Node.EnsurePositiveEulerAnglesTree() -> void
 SA3D.Modeling.ObjectData.Node.EulerRotation.get -> System.Numerics.Vector3
 SA3D.Modeling.ObjectData.Node.EulerRotation.set -> void
 SA3D.Modeling.ObjectData.Node.GetAnimTreeNodeCount() -> int
@@ -1550,6 +1556,8 @@ SA3D.Modeling.ObjectData.Node.GetTreeAttaches() -> SA3D.Modeling.Mesh.Attach![]!
 SA3D.Modeling.ObjectData.Node.GetTreeNodeCount() -> int
 SA3D.Modeling.ObjectData.Node.GetTreeNodeEnumerable() -> System.Collections.Generic.IEnumerable<SA3D.Modeling.ObjectData.Node!>!
 SA3D.Modeling.ObjectData.Node.GetTreeNodes() -> SA3D.Modeling.ObjectData.Node![]!
+SA3D.Modeling.ObjectData.Node.GetTreeWeldingGroups(bool includeUnwelded) -> SA3D.Modeling.ObjectData.Node![]![]!
+SA3D.Modeling.ObjectData.Node.GetTreeWeldingLinks(bool twoway) -> System.Collections.Generic.Dictionary<SA3D.Modeling.ObjectData.Node!, System.Collections.Generic.HashSet<SA3D.Modeling.ObjectData.Node!>!>!
 SA3D.Modeling.ObjectData.Node.GetWorldMatrix() -> System.Numerics.Matrix4x4
 SA3D.Modeling.ObjectData.Node.GetWorldMatrixTree() -> (SA3D.Modeling.ObjectData.Node! node, System.Numerics.Matrix4x4 worldMatrix)[]!
 SA3D.Modeling.ObjectData.Node.GetWorldMatrixTreeEnumerator() -> System.Collections.Generic.IEnumerable<(SA3D.Modeling.ObjectData.Node! node, System.Numerics.Matrix4x4 worldMatrix)>!
@@ -1599,6 +1607,8 @@ SA3D.Modeling.ObjectData.Node.UpdateTransforms(System.Numerics.Vector3? position
 SA3D.Modeling.ObjectData.Node.UpdateTransforms(System.Numerics.Vector3? position, System.Numerics.Vector3? eulerRotation, System.Numerics.Vector3? scale) -> void
 SA3D.Modeling.ObjectData.Node.UseQuaternionRotation.get -> bool
 SA3D.Modeling.ObjectData.Node.UseQuaternionRotation.set -> void
+SA3D.Modeling.ObjectData.Node.Welding.get -> SA3D.Modeling.ObjectData.Structs.VertexWelding[]?
+SA3D.Modeling.ObjectData.Node.Welding.set -> void
 SA3D.Modeling.ObjectData.Node.Write(SA3D.Common.IO.EndianStackWriter! writer, SA3D.Modeling.ObjectData.Enums.ModelFormat format, SA3D.Modeling.Structs.PointerLUT! lut) -> uint
 SA3D.Modeling.ObjectData.Structs.VertexWelding
 SA3D.Modeling.ObjectData.Structs.VertexWelding.DestinationVertexIndex.get -> uint
@@ -1809,7 +1819,9 @@ static SA3D.Modeling.Mesh.Buffer.BufferCorner.Read(SA3D.Common.IO.EndianStackRea
 static SA3D.Modeling.Mesh.Buffer.BufferMaterial.operator !=(SA3D.Modeling.Mesh.Buffer.BufferMaterial l, SA3D.Modeling.Mesh.Buffer.BufferMaterial r) -> bool
 static SA3D.Modeling.Mesh.Buffer.BufferMaterial.operator ==(SA3D.Modeling.Mesh.Buffer.BufferMaterial l, SA3D.Modeling.Mesh.Buffer.BufferMaterial r) -> bool
 static SA3D.Modeling.Mesh.Buffer.BufferMaterial.Read(SA3D.Common.IO.EndianStackReader! reader, uint address) -> SA3D.Modeling.Mesh.Buffer.BufferMaterial
-static SA3D.Modeling.Mesh.Buffer.BufferMesh.Optimize(System.Collections.Generic.IList<SA3D.Modeling.Mesh.Buffer.BufferMesh!>! input) -> SA3D.Modeling.Mesh.Buffer.BufferMesh![]!
+static SA3D.Modeling.Mesh.Buffer.BufferMesh.CompressLayout(System.Collections.Generic.IList<SA3D.Modeling.Mesh.Buffer.BufferMesh!>! input) -> SA3D.Modeling.Mesh.Buffer.BufferMesh![]!
+static SA3D.Modeling.Mesh.Buffer.BufferMesh.GetCornerTriangleList(SA3D.Modeling.Mesh.Buffer.BufferCorner[]! corners, uint[]? indexList, bool strippified) -> SA3D.Modeling.Mesh.Buffer.BufferCorner[]!
+static SA3D.Modeling.Mesh.Buffer.BufferMesh.GetIndexTriangleList(SA3D.Modeling.Mesh.Buffer.BufferCorner[]! corners, uint[]? indexList, bool strippified) -> uint[]!
 static SA3D.Modeling.Mesh.Buffer.BufferMesh.Read(SA3D.Common.IO.EndianStackReader! reader, uint address) -> SA3D.Modeling.Mesh.Buffer.BufferMesh!
 static SA3D.Modeling.Mesh.Buffer.BufferVertex.operator !=(SA3D.Modeling.Mesh.Buffer.BufferVertex left, SA3D.Modeling.Mesh.Buffer.BufferVertex right) -> bool
 static SA3D.Modeling.Mesh.Buffer.BufferVertex.operator *(float l, SA3D.Modeling.Mesh.Buffer.BufferVertex r) -> SA3D.Modeling.Mesh.Buffer.BufferVertex
@@ -1866,7 +1878,7 @@ static SA3D.Modeling.Mesh.Weighted.WeightedMesh.FromAttach(SA3D.Modeling.Mesh.At
 static SA3D.Modeling.Mesh.Weighted.WeightedMesh.FromModel(SA3D.Modeling.ObjectData.Node! model, SA3D.Modeling.Mesh.Weighted.BufferMode bufferMode) -> SA3D.Modeling.Mesh.Weighted.WeightedMesh![]!
 static SA3D.Modeling.Mesh.Weighted.WeightedMesh.MergeAtRoots(SA3D.Modeling.Mesh.Weighted.WeightedMesh![]! meshes) -> SA3D.Modeling.Mesh.Weighted.WeightedMesh![]!
 static SA3D.Modeling.Mesh.Weighted.WeightedMesh.MergeWeightedMeshes(System.Collections.Generic.IEnumerable<SA3D.Modeling.Mesh.Weighted.WeightedMesh!>! meshes) -> SA3D.Modeling.Mesh.Weighted.WeightedMesh!
-static SA3D.Modeling.Mesh.Weighted.WeightedMesh.ToModel(SA3D.Modeling.ObjectData.Node! model, SA3D.Modeling.Mesh.Weighted.WeightedMesh![]! meshes, SA3D.Modeling.Mesh.AttachFormat format, bool optimize, bool ignoreWeights = false) -> void
+static SA3D.Modeling.Mesh.Weighted.WeightedMesh.ToModel(SA3D.Modeling.ObjectData.Node! model, SA3D.Modeling.Mesh.Weighted.WeightedMesh![]! meshes, SA3D.Modeling.Mesh.AttachFormat format, bool optimize) -> void
 static SA3D.Modeling.Mesh.Weighted.WeightedVertex.operator !=(SA3D.Modeling.Mesh.Weighted.WeightedVertex left, SA3D.Modeling.Mesh.Weighted.WeightedVertex right) -> bool
 static SA3D.Modeling.Mesh.Weighted.WeightedVertex.operator ==(SA3D.Modeling.Mesh.Weighted.WeightedVertex left, SA3D.Modeling.Mesh.Weighted.WeightedVertex right) -> bool
 static SA3D.Modeling.ObjectData.Enums.EnumExtensions.CheckIsCollision(this SA3D.Modeling.ObjectData.Enums.SurfaceAttributes attributes) -> bool