//C++ header - Open Scene Graph - Copyright (C) 1998-2001 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.

#ifndef OSGUTIL_TRISTRIPVISITOR
#define OSGUTIL_TRISTRIPVISITOR 1

#include <osg/NodeVisitor>
#include <osg/Geode>
#include <osg/GeoSet>

#include <osgUtil/Export>

namespace osgUtil {

/** A tri stripping visitor for converting GeoSet primitives into tri strips.
  * The current implemention is based up NVidia's NvTriStrip.
  */
class OSGUTIL_EXPORT TriStripVisitor : public osg::NodeVisitor
{
    public:

        /// default to traversing all children.
        TriStripVisitor()
        {
            setTraversalMode(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN);
        }

        /** convert mesh primitives in geoset into Tri Strips using
          * NvTriStrip.  Converts all primitive types except points
          * and lines, linestrips which it leaves unchanged.
          */
        static void stripify(osg::GeoSet& gset);

        /// apply stripify method to all geode geosets.
        virtual void apply(osg::Geode& geode);

};

};

#endif