From d2a0315e20398861e79d77028baa0748cea398c5 Mon Sep 17 00:00:00 2001
From: Laurens Voerman <l.voerman@rug.nl>
Date: Thu, 6 Oct 2016 14:21:07 +0200
Subject: [PATCH] fix bug in SmoothingVisitor tripped by bunny.ply

---
 src/osgUtil/SmoothingVisitor.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/osgUtil/SmoothingVisitor.cpp b/src/osgUtil/SmoothingVisitor.cpp
index cf0693bfc..4b0cfa111 100644
--- a/src/osgUtil/SmoothingVisitor.cpp
+++ b/src/osgUtil/SmoothingVisitor.cpp
@@ -657,14 +657,16 @@ static void smooth_new(osg::Geometry& geom, double creaseAngle)
         // fsef.listProblemVertices();
         fsef.updateGeometry();
 
+        vertices = dynamic_cast<osg::Vec3Array*>(geom.getVertexArray());
+        normals = dynamic_cast<osg::Vec3Array*>(geom.getNormalArray());
         osg::TriangleIndexFunctor<SmoothTriangleIndexFunctor> stif2;
         if (stif2.set(vertices, normals))
         {
             // accumulate all the normals
-            geom.accept(stif);
+            geom.accept(stif2);
 
             // normalize the normals
-            stif.normalize();
+            stif2.normalize();
         }
 
     }