diff --git a/AUTHORS b/AUTHORS
index 3d1fe8662..02934ced7 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -80,6 +80,9 @@ Henry Maddocks <henryj@paradise.net.nz>
 Paul Fredrikson
         - new Matrix implementation.
 
+Sasa Bistrivic <sasa.bistrovic@zg.hinet.hr>
+        - option for detailed calculation of the near clipping plane during cull traversal.
+
 Indirect Contributors
 ---------------------
     
diff --git a/include/osgUtil/Optimizer b/include/osgUtil/Optimizer
index 863a13889..bb191bfb9 100644
--- a/include/osgUtil/Optimizer
+++ b/include/osgUtil/Optimizer
@@ -49,12 +49,16 @@ class OSGUTIL_EXPORT Optimizer
             public:
 
                 typedef std::vector<osg::Matrix> MatrixStack;
-                MatrixStack                      _matrixStack;
 
                 typedef std::set<osg::Transform*> TransformList;
-                TransformList                     _transformList;
+                
+                MatrixStack     _matrixStack;
+                TransformList   _transformList;
+                bool            _ignoreDynamicTransforms;
 
-                FlattenStaticTransformsVisitor():osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
+                FlattenStaticTransformsVisitor(bool ignoreDynamicTransforms=true):
+                    osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
+                    _ignoreDynamicTransforms(ignoreDynamicTransforms) {}
 
                 virtual void apply(osg::Geode& geode);
                 virtual void apply(osg::Billboard& billboard);
diff --git a/src/osgPlugins/osg/Transform.cpp b/src/osgPlugins/osg/Transform.cpp
index 7b7c2d1e6..749fe4935 100644
--- a/src/osgPlugins/osg/Transform.cpp
+++ b/src/osgPlugins/osg/Transform.cpp
@@ -77,8 +77,8 @@ bool Transform_writeLocalData(const Object& obj, Output& fw)
 
     switch(transform.getType())
     {
-        case(osg::Transform::STATIC): fw.indent() << "Type STATIC" << std::endl;
-        default:                      fw.indent() << "Type DYNAMIC" << std::endl;
+        case(osg::Transform::STATIC): fw.indent() << "Type STATIC" << std::endl;break;
+        default:                      fw.indent() << "Type DYNAMIC" << std::endl;break;
     }
 
     fw.writeObject(transform.getMatrix());
diff --git a/src/osgUtil/Optimizer.cpp b/src/osgUtil/Optimizer.cpp
index 12376a46c..bcfc7b5e3 100644
--- a/src/osgUtil/Optimizer.cpp
+++ b/src/osgUtil/Optimizer.cpp
@@ -353,25 +353,32 @@ void Optimizer::FlattenStaticTransformsVisitor::apply(osg::LOD& lod)
 
 void Optimizer::FlattenStaticTransformsVisitor::apply(osg::Transform& transform)
 {
-    if (_matrixStack.empty())
+    if (_ignoreDynamicTransforms && transform.getType()==osg::Transform::DYNAMIC) 
     {
-        _matrixStack.push_back(transform.getMatrix());
+        // simple traverse the children as if this Transform didn't exist.
+        traverse(transform);
     }
     else
-    {
-        _matrixStack.push_back(transform.getMatrix()*_matrixStack.back());
+    {        
+        if (_matrixStack.empty())
+        {
+            _matrixStack.push_back(transform.getMatrix());
+        }
+        else
+        {
+            _matrixStack.push_back(transform.getMatrix()*_matrixStack.back());
+        }
+
+        _transformList.insert(&transform);
+
+        // simple traverse the children as if this Transform didn't exist.
+        traverse(transform);
+
+        // reset the matrix to identity.
+        transform.setMatrix(osg::Matrix::identity());
+
+        _matrixStack.pop_back();
     }
-
-    traverse(transform);
-
-    _transformList.insert(&transform);
-
-    // reset the matrix to identity.
-    transform.setMatrix(osg::Matrix::identity());
-    
-    transform.dirtyBound();
-
-    _matrixStack.pop_back();
 }
 
 void Optimizer::FlattenStaticTransformsVisitor::removeTransforms()