+ getOdal(const SGLightBin& lights, const simgear::SGReaderWriterOptions* options);
+
+ static osg::Node*
+ getHoldShort(const SGDirectionalLightBin& lights, const simgear::SGReaderWriterOptions* options);
+
+ static osg::Node*
+ getGuard(const SGDirectionalLightBin& lights, const simgear::SGReaderWriterOptions* options);