Added PolytopeVisitor to SphereSegment.cpp to help cull down to only drawables that intersect with the frustum of the SphereSegment. PolytopeVisitor may eventually be pulled out to be more generally used along the lines of osgUtil::IntersectVisitor.
Added PolytopeVisitor to SphereSegment.cpp to help cull down to only drawables
that intersect with the frustum of the SphereSegment. PolytopeVisitor may
eventually be pulled out to be more generally used along the lines of osgUtil::IntersectVisitor.


jtorresfabra/osg,artoolkit/osg,tomasthoresen/osg,artoolkit/osg,openscenegraph/osg,scrawl/osg,tomasthoresen/osg,tomasthoresen/osg,artoolkit/osg,openscenegraph/osg,artoolkit/osg,marchelbling/osg,jtorresfabra/osg,scrawl/osg,tomasthoresen/osg,scrawl/osg,marchelbling/osg,openscenegraph/osg,marchelbling/osg,jtorresfabra/osg,scrawl/osg,openscenegraph/osg,jtorresfabra/osg,marchelbling/osg