/// <summary>
        /// Handle additional <see cref="UpdateMessage"/> data.
        /// </summary>
        /// <param name="obj"></param>
        /// <param name="msg"></param>
        /// <param name="packet"></param>
        /// <param name="reader"></param>
        /// <returns></returns>
        protected override Error PostHandleMessage(GameObject obj, UpdateMessage msg, PacketBuffer packet, BinaryReader reader)
        {
            TextMesh       textMesh  = obj.GetComponent <TextMesh>();
            ShapeComponent shapeComp = obj.GetComponent <ShapeComponent>();

            if (textMesh != null && shapeComp != null)
            {
                textMesh.fontSize = (int)msg.Attributes.ScaleZ;
                textMesh.color    = shapeComp.Colour;
            }

            // Convert position to Unity position.
            obj.transform.localPosition = FrameTransform.RemoteToUnity(obj.transform.localPosition, ServerInfo.CoordinateFrame);

            if (shapeComp != null && (msg.Flags & (ushort)Text3DFlag.SceenFacing) != (shapeComp.ObjectFlags & (ushort)Text3DFlag.SceenFacing))
            {
                // Screen facing flag changed.
                if ((msg.Flags & (ushort)Text3DFlag.SceenFacing) != 0)
                {
                    // Need to use -forward for text.
                    ScreenFacing.AddToManager(obj, -Vector3.forward, Vector3.up);
                }
                else
                {
                    // Need to use -forward for text.
                    ScreenFacing.RemoveFromManager(obj);
                }
            }
            return(new Error());
        }
        /// <summary>
        /// Handle additional <see cref="CreateMessage"/> data.
        /// </summary>
        /// <param name="obj"></param>
        /// <param name="msg"></param>
        /// <param name="packet"></param>
        /// <param name="reader"></param>
        /// <returns></returns>
        protected override Error PostHandleMessage(GameObject obj, CreateMessage msg, PacketBuffer packet, BinaryReader reader)
        {
            // Convert position to Unity position.
            obj.transform.localPosition = FrameTransform.RemoteToUnity(obj.transform.localPosition, ServerInfo.CoordinateFrame);

            // Read the text in the buffer.
            int textLength = reader.ReadUInt16();

            if (textLength > 0)
            {
                TextMesh textMesh = obj.GetComponent <TextMesh>();
                if (textMesh == null)
                {
                    textMesh = obj.AddComponent <TextMesh>();
                }

                byte[] textBytes = reader.ReadBytes(textLength);
                textMesh.text = System.Text.Encoding.UTF8.GetString(textBytes);
                ShapeComponent shapeComp = obj.GetComponent <ShapeComponent>();
                if (shapeComp != null)
                {
                    textMesh.fontSize = (int)msg.Attributes.ScaleZ;
                    textMesh.color    = shapeComp.Colour;
                }
            }

            if ((msg.Flags & (ushort)Text3DFlag.SceenFacing) != 0)
            {
                // Need to use -forward for text.
                ScreenFacing.AddToManager(obj, -Vector3.forward, Vector3.up);
            }

            return(base.PostHandleMessage(obj, msg, packet, reader));
        }