diff --git a/src/osgPlugins/obj/ReaderWriterOBJ.cpp b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
index b9e387499..2780f73fa 100644
--- a/src/osgPlugins/obj/ReaderWriterOBJ.cpp
+++ b/src/osgPlugins/obj/ReaderWriterOBJ.cpp
@@ -268,8 +268,6 @@ osg::Geometry* ReaderWriterOBJ::convertElementListToGeometry(obj::Model& model,
 
     }
 
-    bool reverseWinding = true;
-
     if (numPolygonElements>0)
     {
         unsigned int startPos = vertices->size();
@@ -284,7 +282,7 @@ osg::Geometry* ReaderWriterOBJ::convertElementListToGeometry(obj::Model& model,
             {
                 drawArrayLengths->push_back(element.vertexIndices.size());
             
-                if (reverseWinding)
+                if (model.needReverse(element))
                 {
                     // need to reverse so add to OSG arrays in same order as in OBJ, as OSG assume anticlockwise ordering.
                     for(obj::Element::IndexList::reverse_iterator index_itr = element.vertexIndices.rbegin();
@@ -319,7 +317,7 @@ osg::Geometry* ReaderWriterOBJ::convertElementListToGeometry(obj::Model& model,
                         index_itr != element.vertexIndices.end();
                         ++index_itr)
                     {
-                        vertices->push_back(model.vertices[*index_itr]);
+                        vertices->push_back(transformVertex(model.vertices[*index_itr]));
                     }
                     if (numNormalIndices)
                     {
@@ -327,7 +325,7 @@ osg::Geometry* ReaderWriterOBJ::convertElementListToGeometry(obj::Model& model,
                             index_itr != element.normalIndices.end();
                             ++index_itr)
                         {
-                            normals->push_back(model.normals[*index_itr]);
+                            normals->push_back(transformNormal(model.normals[*index_itr]));
                         }
                     }
                     if (numTexCoordIndices)
diff --git a/src/osgPlugins/obj/obj.cpp b/src/osgPlugins/obj/obj.cpp
index 409951766..009e2c798 100644
--- a/src/osgPlugins/obj/obj.cpp
+++ b/src/osgPlugins/obj/obj.cpp
@@ -462,3 +462,40 @@ void Model::addElement(Element* element)
     currentElementList->push_back(element);
     
 }
+
+osg::Vec3 Model::averageNormal(const Element& element) const
+{
+    osg::Vec3 normal;
+    for(Element::IndexList::const_iterator itr=element.normalIndices.begin();
+        itr!=element.normalIndices.end();
+        ++itr)
+    {
+        normal += normals[*itr];
+    }
+    normal.normalize();
+    
+    return normal;
+}
+
+osg::Vec3 Model::computeNormal(const Element& element) const
+{
+    osg::Vec3 normal;
+    for(unsigned int i=0;i<element.vertexIndices.size()-2;++i)
+    {
+        osg::Vec3 a = vertices[element.vertexIndices[i]];
+        osg::Vec3 b = vertices[element.vertexIndices[i+1]];
+        osg::Vec3 c = vertices[element.vertexIndices[i+2]];
+        osg::Vec3 localNormal = (b-a)   ^(c-b);
+        normal += localNormal;
+    }
+    normal.normalize();
+    
+    return normal;
+}
+
+bool Model::needReverse(const Element& element) const
+{
+    if (element.normalIndices.empty()) return true;
+    
+    return computeNormal(element)*averageNormal(element) < 0.0f;
+}
diff --git a/src/osgPlugins/obj/obj.h b/src/osgPlugins/obj/obj.h
index 8e7e49a77..acfb6f698 100644
--- a/src/osgPlugins/obj/obj.h
+++ b/src/osgPlugins/obj/obj.h
@@ -159,6 +159,10 @@ public:
     bool readline(std::istream& fin, char* line, const int LINE_SIZE);
     void addElement(Element* element);
     
+    osg::Vec3 averageNormal(const Element& element) const;
+    osg::Vec3 computeNormal(const Element& element) const;
+    bool needReverse(const Element& element) const;
+    
     int remapVertexIndex(int vi) { return (vi<0) ? vertices.size()+vi : vi-1; }
     int remapNormalIndex(int vi) { return (vi<0) ? normals.size()+vi : vi-1; }
     int remapTexCoordIndex(int vi) { return (vi<0) ? texcoords.size()+vi : vi-1; }