diff --git a/invesalius/constants.py b/invesalius/constants.py
index 38ed439..8a15148 100644
--- a/invesalius/constants.py
+++ b/invesalius/constants.py
@@ -403,6 +403,7 @@ FILETYPE_VRML = wx.NewId()
 FILETYPE_OBJ = wx.NewId()
 FILETYPE_VTP = wx.NewId()
 FILETYPE_PLY = wx.NewId()
+FILETYPE_X3D = wx.NewId()
 
 FILETYPE_IMAGEDATA = wx.NewId()
 
diff --git a/invesalius/data/viewer_volume.py b/invesalius/data/viewer_volume.py
index 2b7debf..02334ca 100755
--- a/invesalius/data/viewer_volume.py
+++ b/invesalius/data/viewer_volume.py
@@ -168,7 +168,6 @@ class Viewer(wx.Panel):
     def OnExportPicture(self, pubsub_evt):
         ps.Publisher().sendMessage('Begin busy cursor')
         id, filename, filetype = pubsub_evt.data
-        
         if id == const.VOLUME:
             if filetype == const.FILETYPE_POV:
                 renwin = self.interactor.GetRenderWindow()
@@ -458,6 +457,12 @@ class Viewer(wx.Panel):
             writer.SetFileName(filename)
             writer.SetInput(renwin)
             writer.Write()
+        elif filetype == const.FILETYPE_X3D:
+            writer = vtk.vtkX3DExporter()
+            writer.SetInput(renwin)
+            writer.SetFileName(filename)
+            writer.Update()
+            writer.Write()
         elif filetype == const.FILETYPE_OBJ:
             writer = vtk.vtkOBJExporter()
             writer.SetFilePrefix(fileprefix)
diff --git a/invesalius/gui/task_exporter.py b/invesalius/gui/task_exporter.py
index 8498e53..66533ac 100644
--- a/invesalius/gui/task_exporter.py
+++ b/invesalius/gui/task_exporter.py
@@ -42,7 +42,8 @@ WILDCARD_SAVE_3D = "Inventor (*.iv)|*.iv|"\
                    "STL ASCII (*.stl)|*.stl|"\
                    "VRML (*.vrml)|*.vrml|"\
                    "VTK PolyData (*.vtp)|*.vtp|"\
-                   "Wavefront (*.obj)|*.obj"
+                   "Wavefront (*.obj)|*.obj|"\
+                   "X3D (*.x3d)|*.x3d"
                      
 INDEX_TO_TYPE_3D = {0: const.FILETYPE_IV,
                     1: const.FILETYPE_PLY,
@@ -51,7 +52,8 @@ INDEX_TO_TYPE_3D = {0: const.FILETYPE_IV,
                     4: const.FILETYPE_STL_ASCII,
                     5: const.FILETYPE_VRML,
                     6: const.FILETYPE_VTP,
-                    7: const.FILETYPE_OBJ}
+                    7: const.FILETYPE_OBJ,
+                    8: const.FILETYPE_X3D}
 INDEX_TO_EXTENSION = {0: "iv",
                       1: "ply",
                       2: "rib",
@@ -59,7 +61,8 @@ INDEX_TO_EXTENSION = {0: "iv",
                       4: "stl",
                       5: "vrml",
                       6: "vtp",
-                      7: "obj"}
+                      7: "obj",
+                      8: "x3d"}
 
 WILDCARD_SAVE_2D = "BMP (*.bmp)|*.bmp|"\
                    "JPEG (*.jpg)|*.jpg|"\
--
libgit2 0.21.2