From 94e23455d4ecef546c05d51daf42d744aaf5b79c Mon Sep 17 00:00:00 2001
From: Campbell Barton <ideasman42@gmail.com>
Date: Tue, 3 Jul 2012 17:37:40 +0000
Subject: [PATCH] increase margin and remove doubles a little, close verts gave
 issues with convex hull

---
 object_fracture_voroni/__init__.py            | 5 ++++-
 object_fracture_voroni/fracture_cell_calc.py  | 2 +-
 object_fracture_voroni/fracture_cell_setup.py | 6 ++++--
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/object_fracture_voroni/__init__.py b/object_fracture_voroni/__init__.py
index 3a6e507a2..611a37ac4 100644
--- a/object_fracture_voroni/__init__.py
+++ b/object_fracture_voroni/__init__.py
@@ -59,7 +59,10 @@ def main_object(scene, obj, level, **kw):
     use_island_split = kw_copy.pop("use_island_split")
 
     from . import fracture_cell_setup
-    
+
+    # not essential but selection is visual distraction.
+    obj.select = False
+
     if kw_copy["use_debug_redraw"]:
         obj_draw_type_prev = obj.draw_type
         obj.draw_type = 'WIRE'
diff --git a/object_fracture_voroni/fracture_cell_calc.py b/object_fracture_voroni/fracture_cell_calc.py
index b7416dd88..3b9e5a16d 100644
--- a/object_fracture_voroni/fracture_cell_calc.py
+++ b/object_fracture_voroni/fracture_cell_calc.py
@@ -22,7 +22,7 @@
 
 
 def points_as_bmesh_cells(verts, points,
-                          margin_bounds=0.01,
+                          margin_bounds=0.05,
                           margin_cell=0.0):
     import mathutils
     from mathutils import Vector
diff --git a/object_fracture_voroni/fracture_cell_setup.py b/object_fracture_voroni/fracture_cell_setup.py
index c2661a10a..cf87be263 100644
--- a/object_fracture_voroni/fracture_cell_setup.py
+++ b/object_fracture_voroni/fracture_cell_setup.py
@@ -216,7 +216,7 @@ def cell_fracture_objects(scene, obj,
             bm_vert.tag = True
 
         import mathutils
-        bmesh.ops.remove_doubles(bm, verts=bm.verts, dist=0.0001)
+        bmesh.ops.remove_doubles(bm, verts=bm.verts, dist=0.005)
         try:
             bmesh.ops.convex_hull(bm, input=bm.verts)
         except RuntimeError:
@@ -352,7 +352,7 @@ def cell_fracture_boolean(scene, obj, objects,
             if use_debug_redraw:
                 _redraw_yasiamevil()
 
-    if use_island_split:
+    if apply and use_island_split:
         # this is ugly and Im not proud of this - campbell
         objects_islands = []
         for obj_cell in objects_boolean:
@@ -375,4 +375,6 @@ def cell_fracture_boolean(scene, obj, objects,
 
         objects_boolean = objects_islands
 
+    scene.update()
+
     return objects_boolean
-- 
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