diff --git a/spine-lua/AttachmentLoader.lua b/spine-lua/AttachmentLoader.lua
index 3c93e5210..bb8f6ac9e 100644
--- a/spine-lua/AttachmentLoader.lua
+++ b/spine-lua/AttachmentLoader.lua
@@ -32,6 +32,8 @@
 local AttachmentType = require "spine-lua.AttachmentType"
 local RegionAttachment = require "spine-lua.RegionAttachment"
 local BoundingBoxAttachment = require "spine-lua.BoundingBoxAttachment"
+local MeshAttachment = require "spine-lua.MeshAttachment"
+local SkinningMeshAttachment = require "spine-lua.SkinnedMeshAttachment"
 
 local AttachmentLoader = {}
 function AttachmentLoader.new ()
diff --git a/spine-lua/SkeletonJson.lua b/spine-lua/SkeletonJson.lua
index f747197c4..7c8a315df 100755
--- a/spine-lua/SkeletonJson.lua
+++ b/spine-lua/SkeletonJson.lua
@@ -266,19 +266,21 @@ function SkeletonJson.new (attachmentLoader)
 			return mesh
 
 		elseif type == AttachmentType.skinnedmesh then
-			local mesh = self.attachmentLoader.newSkinnedMeshAttachment(skin, name, path)
+			local mesh = self.attachmentLoader.newSkinningMeshAttachment(skin, name, path)
 			if not mesh then return null end
 			mesh.path = path
 
 			local uvs = getArray(map, "uvs", 1)
-			vertices = getArray(map, "vertices", 1)
+			local vertices = getArray(map, "vertices", 1)
 			local weights = {}
 			local bones = {}
-			for i = 1, vertices do
+			local i, n = 1, #vertices
+			while i < n do
 				local boneCount = vertices[i]
 				i = i + 1
 				table.insert(bones, boneCount)
-				for ii = 1, i + boneCount * 4 do
+				local nn = i + boneCount * 4
+				while i < nn do
 					table.insert(bones, vertices[i])
 					table.insert(weights, vertices[i + 1] * scale)
 					table.insert(weights, vertices[i + 2] * scale)
diff --git a/spine-lua/SkinnedMeshAttachment.lua b/spine-lua/SkinnedMeshAttachment.lua
index 607a913e6..2281ce673 100644
--- a/spine-lua/SkinnedMeshAttachment.lua
+++ b/spine-lua/SkinnedMeshAttachment.lua
@@ -37,7 +37,7 @@ function SkinnedMeshAttachment.new (name)
 	
 	local self = {
 		name = name,
-		type = AttachmentType.mesh,
+		type = AttachmentType.skinnedmesh,
 		bones = nil,
 		weights = nil,
 		uvs = nil,
@@ -75,15 +75,15 @@ function SkinnedMeshAttachment.new (name)
 	end
 
 	function self:computeWorldVertices (x, y, slot, worldVertices)
-		local skeletonBones = slot.skeleton.bones
+		local skeletonBones = slot.bone.skeleton.bones
 		local weights = self.weights
 		local bones = self.bones
 
-		local w, v, b, f = 0, 0, 0, 0
-		local	n = bones.length
+		local w, v, b, f = 1, 1, 1, 1
+		local	n = #bones
 		local wx, wy, bone, vx, vy, weight
-		if #slot.attachmentVertices == 0 then
-			while v < n do
+		if slot.attachmentVerticesCount == 0 then
+			while v <= n do
 				wx = 0
 				wy = 0
 				local nn = bones[v] + v