private static void ExportDaeFile(MenuCommand menuCommand)
        {
            var objectTarget = menuCommand.context as VoxelSkinnedAnimationObject;

            if (objectTarget == null)
            {
                return;
            }

            var objectCore = new VoxelSkinnedAnimationObjectCore(objectTarget);

            DaeExporterWindow.Open(objectTarget.rigAnimationType == VoxelSkinnedAnimationObject.RigAnimationType.Humanoid, () =>
            {
                string path = EditorUtility.SaveFilePanel("Export COLLADA(dae) File", objectCore.GetDefaultPath(), string.Format("{0}.dae", Path.GetFileNameWithoutExtension(objectTarget.voxelFilePath)), "dae");
                if (string.IsNullOrEmpty(path))
                {
                    return;
                }

                if (!objectCore.ExportDaeFileWithAnimation(path, DaeExporterWindow.exportMesh, DaeExporterWindow.exportAnimation, DaeExporterWindow.enableFootIK))
                {
                    Debug.LogErrorFormat("<color=green>[Voxel Importer]</color> Export COLLADA(dae) File error. file:{0}", path);
                }
            });
        }
        public static void Open(bool human, Action onExport)
        {
            DaeExporterWindow.human    = human;
            DaeExporterWindow.onExport = onExport;

            if (instance == null)
            {
                instance = CreateInstance <DaeExporterWindow>();
            }
            instance.titleContent = new GUIContent("Collada Exporter");
            instance.minSize      = instance.maxSize = new Vector2(180, 80);
            instance.ShowAuxWindow();
        }