Added rounding to nearest power of two in tile image size
Added rounding to nearest power of two in tile image size


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