diff --git a/include/osgAnimation/BoneMapVisitor b/include/osgAnimation/BoneMapVisitor
new file mode 100644
index 000000000..97cfa143f
--- /dev/null
+++ b/include/osgAnimation/BoneMapVisitor
@@ -0,0 +1,42 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * 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.
+ * 
+ * Authors:
+ *         Cedric Pinson <cedric.pinson@plopbyte.net>
+ */
+
+#ifndef OSGANIMATION_BONEMAP_VISITOR_H
+#define OSGANIMATION_BONEMAP_VISITOR_H 1
+
+#include <osgAnimation/Export>
+#include <osgAnimation/Bone>
+#include <osg/NodeVisitor>
+
+namespace osgAnimation
+{
+    class OSGANIMATION_EXPORT BoneMapVisitor : public osg::NodeVisitor
+    {
+    public:
+        META_NodeVisitor("osgAnimation","BoneMapVisitor")
+        BoneMapVisitor();
+
+        void apply(osg::Node&);
+        void apply(osg::Transform& node);
+        const Bone::BoneMap& getBoneMap() const;
+
+    protected:
+        Bone::BoneMap _map;
+    };
+}
+
+#endif
diff --git a/include/osgAnimation/ComputeBindMatrixVisitor b/include/osgAnimation/ComputeBindMatrixVisitor
new file mode 100644
index 000000000..a99ce15bc
--- /dev/null
+++ b/include/osgAnimation/ComputeBindMatrixVisitor
@@ -0,0 +1,43 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * 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.
+*/
+
+#ifndef COMPUTE_BIND_MATRIX_VISITOR_H
+#define COMPUTE_BIND_MATRIX_VISITOR_H 1
+
+#include <osg/NodeVisitor>
+#include <osgAnimation/Bone>
+
+namespace osgAnimation
+{
+
+    class ComputeBindMatrixVisitor : public osg::NodeVisitor
+    {
+    public:
+        ComputeBindMatrixVisitor(): osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
+        void apply(osg::Node& node) { return; }
+        void apply(osg::Transform& node) 
+        {
+            osgAnimation::Bone* bone = dynamic_cast<osgAnimation::Bone*>(&node);
+            if (!bone)
+                return;
+            if (bone->needToComputeBindMatrix())
+                bone->computeBindMatrix();
+
+            traverse(node);
+        }
+    };
+
+}
+
+#endif
diff --git a/include/osgAnimation/FindParentAnimationManagerVisitor b/include/osgAnimation/FindParentAnimationManagerVisitor
new file mode 100644
index 000000000..d15a32128
--- /dev/null
+++ b/include/osgAnimation/FindParentAnimationManagerVisitor
@@ -0,0 +1,42 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * 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.
+*/
+
+#ifndef FIND_PARENT_ANIMATIONMANAGER_VISITOR_H
+#define FIND_PARENT_ANIMATIONMANAGER_VISITOR_H 1
+
+#include <osg/NodeVisitor>
+#include <osgAnimation/Export>
+
+namespace osgAnimation
+{
+    class AnimationManagerBase;
+
+    /**
+     *  Find the nearest AnimationManager traversing parent to parent
+     */
+    class OSGANIMATION_EXPORT FindParentAnimationManagerVisitor : public osg::NodeVisitor
+    {
+    public:
+        FindParentAnimationManagerVisitor();
+        void apply(osg::Node& node);
+        osgAnimation::AnimationManagerBase* getAnimationManager();
+
+    protected:
+        osg::ref_ptr<osgAnimation::AnimationManagerBase> _manager;
+
+    };
+
+}
+
+#endif
diff --git a/src/osgAnimation/BoneMapVisitor.cpp b/src/osgAnimation/BoneMapVisitor.cpp
new file mode 100644
index 000000000..d5e1f20fb
--- /dev/null
+++ b/src/osgAnimation/BoneMapVisitor.cpp
@@ -0,0 +1,35 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2009 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * 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.
+ * 
+ * Authors:
+ *         Cedric Pinson <cedric.pinson@plopbyte.net>
+ */
+
+#include <osgAnimation/BoneMapVisitor>
+
+osgAnimation::BoneMapVisitor::BoneMapVisitor() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN) {}
+
+void osgAnimation::BoneMapVisitor::apply(osg::Node&) { return; }
+void osgAnimation::BoneMapVisitor::apply(osg::Transform& node)
+{
+    Bone* bone = dynamic_cast<Bone*>(&node);
+    if (bone) 
+    {
+        _map[bone->getName()] = bone;
+        traverse(node);
+    }
+}
+const osgAnimation::Bone::BoneMap& osgAnimation::BoneMapVisitor::getBoneMap() const
+{
+    return _map;
+}
diff --git a/src/osgAnimation/FindParentAnimationManagerVisitor.cpp b/src/osgAnimation/FindParentAnimationManagerVisitor.cpp
new file mode 100644
index 000000000..d8c6f8f84
--- /dev/null
+++ b/src/osgAnimation/FindParentAnimationManagerVisitor.cpp
@@ -0,0 +1,34 @@
+/*  -*-c++-*- 
+ *  Copyright (C) 2008 Cedric Pinson <cedric.pinson@plopbyte.net>
+ *
+ * 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 <osgAnimation/FindParentAnimationManagerVisitor>
+#include <osgAnimation/AnimationManagerBase>
+
+osgAnimation::FindParentAnimationManagerVisitor::FindParentAnimationManagerVisitor() : osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_PARENTS) {}
+void osgAnimation::FindParentAnimationManagerVisitor::apply(osg::Node& node)
+{
+    if (_manager.valid())
+        return;
+    osg::NodeCallback* callback = node.getUpdateCallback();
+    while (callback) 
+    {
+        _manager = dynamic_cast<osgAnimation::AnimationManagerBase*>(callback);
+        if (_manager.valid())
+            return;
+        callback = callback->getNestedCallback();
+    }
+    traverse(node);
+}
+
+osgAnimation::AnimationManagerBase* osgAnimation::FindParentAnimationManagerVisitor::getAnimationManager() { return _manager.get(); }