From 71b4a1f6abf4586e6b142c514e9654b4bc12013a Mon Sep 17 00:00:00 2001
From: Ilya Portnov <portnov@iportnov.ru>
Date: Wed, 25 Feb 2015 21:41:36 +0500
Subject: [PATCH] Update bmesh normals before recalculating.

This fixes normals if mesh was composed of several parts using Mesh Join
or similar nodes.
---
 nodes/modifier_change/recalc_normals.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/nodes/modifier_change/recalc_normals.py b/nodes/modifier_change/recalc_normals.py
index 248d20056..c5faddc4d 100644
--- a/nodes/modifier_change/recalc_normals.py
+++ b/nodes/modifier_change/recalc_normals.py
@@ -69,6 +69,7 @@ class SvRecalcNormalsNode(bpy.types.Node, SverchCustomTreeNode):
         for vertices, edges, faces, mask in zip(*meshes):
 
             bm = bmesh_from_pydata(vertices, edges, faces)
+            bm.normal_update()
             fullList(mask, len(faces))
 
             b_faces = []
-- 
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