Fix for compiling with OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION=OFF
Fix for compiling with OSG_USE_REF_PTR_IMPLICIT_OUTPUT_CONVERSION=OFF

openscenegraph/osg,scrawl/osg,openscenegraph/osg,scrawl/osg,openscenegraph/osg,openscenegraph/osg,scrawl/osg,scrawl/osg