Added guard to texture image to avoid seg fault when dealing with incomplete databases.
Added guard to texture image to avoid seg fault when dealing with incomplete databases.


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