Hi allDecided to get my feet wet with some scenery design (airport and AP surroundings mainly). After much messing around I thought I'd stay around the stuff that uses xml. All sorts of wrestling been going on here trying to get scenegenx to run without errors but thats another story.Anyway my question is, is it better to have most stuff in one bgl or make a few bgl's. Does it for example affect performance or are there other issues? The flatten can just go in the scenery.cfg file. Another reason I ask is it seems better to me if you have exclude in one bgl then airport in another and finally object locations etc in another. This would also avoid overly complicated and large xml files too.Advice would be appreciatedThanks Regards Pete

Hi Pete,You will probably end up with a few BGL files. The ground layout of your airport will end up in one BGL (you can change this with AFCAD or SceneGenX). Due to the way the XML is structured for the airport all changes for the airport can best be in one single BGL file.Apart from that you will probably have a flatten and an exclude BGL file. Putting the flatten in the scenery.cfg is not a really good idea, it is better to have it as a BGL file.And if you start making your own 3D objects you will probably also get an object library BGL file for your project. And if you want to adapt the mesh terrain a bit as well that might give one or two new BGL files as well.So I guess in total you will easily end up with 5 or 6 BGL files. But these all contain different elements, so most can not even be combined into one.

Thanks ArnoI'll put the flatten into bgl then. Thanks for the tips.Regards Pete