*Bug fixes (script thought there was 32 layers, lol).

*Commented out non-manifold check on returned shards, it prevented open meshes to be fractured (e.g. Suzanne).
*Enhanced UI of Fracture Group op.

object_fracture/__init__.py

@@ -21,7 +21,7 @@ bl_info = {
     "author": "pildanovak",
     "version": (2, 0),
     "blender": (2, 5, 7),
-    "api": 35622,
+    "api": 36147,
     "location": "Search > Fracture Object & Add -> Fracture Helper Objects",
     "description": "Fractured Object, Bomb, Projectile, Recorder",
     "warning": "",

object_fracture/fracture_ops.py

@@ -66,9 +66,6 @@ def create_cutter(context, crack_type, scale, roughness):
             location=(0, 0, 0),
             rotation=(0, 0, 0),
             layers=(True, False, False, False,
-                False, False, False, False,
-                False, False, False, False,
-                False, False, False, False,
                 False, False, False, False,
                 False, False, False, False,
                 False, False, False, False,
@@ -161,7 +158,7 @@ def getIslands(shard):
             bpy.ops.object.select_all(action='DESELECT')
             bpy.context.scene.objects.active = shard
             shard.select = True
-            bpy.ops.object.duplicate(linked=False, mode=1)
+            bpy.ops.object.duplicate(linked=False, mode='DUMMY')
             a = bpy.context.scene.objects.active
             sm = a.data
             print (a.name)
@@ -231,8 +228,11 @@ def boolop(ob, cutter, op):
             fault = 1
             #print ('boolop: sizeerror')
 
-        elif min(nmesh.edge_face_count) < 2:    # Manifold check
-            fault = 1
+         # This checks whether returned shards are non-manifold.
+         # Problem is, if org mesh is non-manifold, it will always fail (e.g. with Suzanne).
+         # And disabling it does not seem to cause any problem…
+#        elif min(nmesh.edge_face_count) < 2:    # Manifold check
+#            fault = 1
 
         if not fault:
             new_shards = getIslands(new_shard)
@@ -407,25 +407,31 @@ class FractureGroup(bpy.types.Operator):
     bl_options = {'REGISTER', 'UNDO'}
 
     exe = BoolProperty(name="Execute",
-        description="If it shall actually run, for optimal performance...",
-        default=False)
+                       description="If it shall actually run, for optimal performance...",
+                       default=False)
 
-    e = []
-    for i, g in enumerate(bpy.data.groups):
-        e.append((g.name, g.name, ''))
+    group = StringProperty(name="Group",
+                           description="Specify the group used for fracturing")
 
-    group = EnumProperty(name='Group (hit F8 to refresh list)',
-        items=e,
-        description='Specify the group used for fracturing')
+#    e = []
+#    for i, g in enumerate(bpy.data.groups):
+#        e.append((g.name, g.name, ''))
+#    group = EnumProperty(name='Group (hit F8 to refresh list)',
+#                         items=e,
+#                         description='Specify the group used for fracturing')
 
     def execute(self, context):
         #getIslands(context.object)
 
-        if self.exe:
+        if self.exe and self.group:
             fracture_group(context, self.group)
 
         return {'FINISHED'}
 
+    def draw(self, context):
+        layout = self.layout
+        layout.prop(self, "exe")
+        layout.prop_search(self, "group", bpy.data, "groups")
 
 #####################################################################
 # Import Functions