Added extra check against a null vertex array to prevent a crash when tri stripping an empty geometry.
Added extra check against a null vertex array to prevent a crash when
tri stripping an empty geometry.


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