Hi, looking for why startup is so slow, I found at least three causes that could be addressed :
1. FGAIAircraft class throws hundreds of FP_Inactive exceptions where a simple boolean return value could have made the job ( the try/catch bloc is in the calling code ) 2. UpdateFunctor() / testNan in modelmgr.cxx also throws a lot of sg_range_exception exceptions where again a simple test in the calling function could have made the job, 3. The scenegraph is drawn again and again while the splash screen is visible, slowing down the initialisation phase even more. Exception throwing is very slow on some platform and should be reserved to exceptional case. Solving 1. and 2. is easy and I have a patch ready. But 3. needs a little bit of search for me. Any advice from the scenegraph gurus ? I guess a osg::Switch node could prevent the scenegraph to be updated/culled/drawn while the scenery is loading and nothing but the splash screen is visible. Regards, -Fred -- Frédéric Bouvier http://my.fotolia.com/frfoto/ Photo gallery http://fgsd.sourceforge.net/ FlightGear Scenery Designer ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
