Fixed #186

Fixed #187
Fixed #188

AssetStudio/Classes/Avatar.cs

@@ -53,6 +53,8 @@ namespace AssetStudio
                 else
                     reader.Position += 48;
             }
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3))//4.3 and up
+            {
                 //- OffsetPtr m_DefaultPose
                 //-- SkeletonPose data
                 numXforms = reader.ReadInt32();
@@ -69,6 +71,7 @@ namespace AssetStudio
                 {
                     reader.Position += 4;
                 }
+            }
             //- OffsetPtr m_Human
             //-- Human data
             //--- xform m_RootX
@@ -176,18 +179,23 @@ namespace AssetStudio
             {
                 reader.Position += 4;
             }
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            {
                 //- vector m_HumanSkeletonReverseIndexArray
                 int numReverseIndexes = reader.ReadInt32();
                 for (int i = 0; i < numReverseIndexes; i++)
                 {
                     reader.Position += 4;
                 }
+            }
             var m_RootMotionBoneIndex = reader.ReadInt32();
             //- xform m_RootMotionBoneX
             if (version[0] > 5 || (version[0] == 5 && version[1] >= 4))//5.4 and up
                 reader.Position += 40;
             else
                 reader.Position += 48;
+            if (version[0] > 4 || (version[0] == 4 && version[1] >= 3)) //4.3 and up
+            {
                 //- OffsetPtr m_RootMotionSkeleton
                 //-- Skeleton data
                 //--- vector m_Node
@@ -227,6 +235,7 @@ namespace AssetStudio
                 {
                     reader.Position += 4;
                 }
+            }
             //map m_TOS
             int numTOS = reader.ReadInt32();
             m_TOS = new List<KeyValuePair<uint, string>>(numTOS);

AssetStudio/Classes/Mesh.cs

@@ -511,7 +511,7 @@ namespace AssetStudio
                 #region BlendShapeData and BindPose for 4.3.0 and later
                 else if (version[0] >= 5 || (version[0] == 4 && version[1] >= 3))
                 {
-                    m_Shapes = new BlendShapeData(reader);//TODO 4.3 down
+                    m_Shapes = new BlendShapeData(reader);
 
                     m_BindPose = new float[reader.ReadInt32()][,];
                     for (int i = 0; i < m_BindPose.Length; i++)

AssetStudio/StudioClasses/ModelConverter.cs

@@ -77,13 +77,29 @@ namespace AssetStudio
         {
             assetsfileList.TryGetTransform(m_GameObject.m_Transform, out var m_Transform);
             var rootTransform = m_Transform;
-            while (assetsfileList.TryGetTransform(rootTransform.m_Father, out var m_Father))//Get Root Transform
+            var frameList = new List<ImportedFrame>();
+            while (assetsfileList.TryGetTransform(rootTransform.m_Father, out var m_Father))
             {
+                frameList.Add(ConvertFrames(m_Father));
                 rootTransform = m_Father;
             }
+            if (frameList.Count > 0)
+            {
+                FrameList.Add(frameList[frameList.Count - 1]);
+                for (var i = frameList.Count - 2; i >= 0; i--)
+                {
+                    var frame = frameList[i];
+                    var parent = frameList[i + 1];
+                    parent.AddChild(frame);
+                }
+                ConvertFrames(m_Transform, frameList[0]);
+            }
+            else
+            {
+                ConvertFrames(m_Transform, null);
+            }
 
             CreateBonePathHash(rootTransform);
-            ConvertFrames(rootTransform, null);
             ConvertMeshRenderer(m_Transform);
         }
 
@@ -170,7 +186,7 @@ namespace AssetStudio
             }
         }
 
-        private void ConvertFrames(Transform trans, ImportedFrame parent)
+        private ImportedFrame ConvertFrames(Transform trans)
         {
             var frame = new ImportedFrame();
             assetsfileList.TryGetGameObject(trans.m_GameObject, out var m_GameObject);
@@ -182,9 +198,14 @@ namespace AssetStudio
             var m_LocalScale = new Vector3(trans.m_LocalScale[0], trans.m_LocalScale[1], trans.m_LocalScale[2]);
             var m_LocalPosition = new Vector3(trans.m_LocalPosition[0], trans.m_LocalPosition[1], trans.m_LocalPosition[2]);
             frame.Matrix = Matrix.Scaling(m_LocalScale) * Matrix.RotationQuaternion(mirroredRotation) * Matrix.Translation(-m_LocalPosition.X, m_LocalPosition.Y, m_LocalPosition.Z);
+            return frame;
+        }
+
+        private void ConvertFrames(Transform trans, ImportedFrame parent)
+        {
+            var frame = ConvertFrames(trans);
             if (parent == null)
             {
-                FrameList = new List<ImportedFrame>();
                 FrameList.Add(frame);
             }
             else
@@ -356,6 +377,8 @@ namespace AssetStudio
                 }
 
                 //Morphs
+                if (mesh.m_Shapes != null)
+                {
                     foreach (var channel in mesh.m_Shapes.channels)
                     {
                         morphChannelInfo.Add(channel.nameHash, channel.name);
@@ -411,6 +434,7 @@ namespace AssetStudio
                         }
                     }
                 }
+            }
 
             MeshList.Add(iMesh);
         }