Hi people! In recent times, I noticed my FPS goes down the drain during longer flights. I have examined the on-screen OSG stats, and it showed large cull times. No amount of clicking around in the rendering dialog seems to fix this, neither does repositioning to a far away location. However restarting at the same position does.
Normally I fly the Concorde exclusively, with shaders, random objects and vegetation plus 3D clouds enabled (basically everything except particles and skydome) so I can't pinpoint the exact cause yet. I have noticed that enabling random vegetation makes the number of vertices skyrocket to 200 million (!) in a short time, but that doesn't seem to impact cull times or FPS. Also the values go back to normal once I disable them. 3D clouds do have an effect on cull times and FPS, but they also seem to return to normal once disabled. At the moment, I am at the end of a test flight with no shaders enabled, just random objects, vegetation and 3D clouds and the problem occurred. Could be related to the high altitude or the long distance as well. I am not too keen on git-bisect given the time to perform a test but I think this issue popped up fairly recently. However it also occurred with shaders disabled, hence I don't think it is related to the recent shader work. I know this information is very sketchy right now, and I will be performing more tests (one of which would be a similar flight with everything disabled and another with the ufo, to rule out the Concorde itself as a possible issue). In the meantime, if anybody else is seeing this or has any ideas, please comment. -- Thanks, Csaba/Jester ------------------------------------------------------------------------------ All the data continuously generated in your IT infrastructure contains a definitive record of customers, application performance, security threats, fraudulent activity, and more. Splunk takes this data and makes sense of it. IT sense. And common sense. http://p.sf.net/sfu/splunk-novd2d _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
