Added --flip option to allow one to flip the source data about the x axis.
Added --flip option to allow one to flip the source data about the x axis.


ntoand/osg,artoolkit/osg,stmh/osg,artoolkit/osg,koshman86/osg,ntoand/osg,stmh/osg,XiaoCC/osg,ghub/osg,ghub/osg,koshman86/osg,stmh/osg,artoolkit/osg,omega-hub/osg,ntoand/osg,XiaoCC/osg,ghub/osg,koshman86/osg,omega-hub/osg,stmh/osg,omega-hub/osg,koshman86/osg,omega-hub/osg,stmh/osg,ntoand/osg,XiaoCC/osg,XiaoCC/osg,ghub/osg,artoolkit/osg,XiaoCC/osg