Additions since the CVS back up was made.

src/osgUtil/TransformAttributeFunctor.cpp

@@ -0,0 +1,48 @@
+/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield 
+ *
+ * This library is open source and may be redistributed and/or modified under  
+ * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
+ * (at your option) any later version.  The full license is in LICENSE file
+ * included with this distribution, and on the openscenegraph.org website.
+ * 
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
+ * OpenSceneGraph Public License for more details.
+*/
+
+#include <osgUtil/TransformAttributeFunctor>
+
+using namespace osgUtil;
+
+TransformAttributeFunctor::TransformAttributeFunctor(const osg::Matrix& m)
+{
+    _m = m;
+    _im.invert(_m);
+}
+
+TransformAttributeFunctor::~TransformAttributeFunctor()
+{
+}
+
+void TransformAttributeFunctor::apply(osg::Drawable::AttributeType type,unsigned int count,osg::Vec3* begin)
+{
+    if (type == osg::Drawable::VERTICES)
+    {
+        osg::Vec3* end = begin+count;
+        for (osg::Vec3* itr=begin;itr<end;++itr)
+        {
+            (*itr) = (*itr)*_m;
+        }
+    }
+    else if (type == osg::Drawable::NORMALS)
+    {
+        osg::Vec3* end = begin+count;
+        for (osg::Vec3* itr=begin;itr<end;++itr)
+        {
+            // note post mult by inverse for normals.
+            (*itr) = osg::Matrix::transform3x3(_im,(*itr));
+            (*itr).normalize();
+        }
+    }
+}