Added --replace-rgb-with-luminance option
Added --replace-rgb-with-luminance option



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