thanks, Dragon100 - maybe I should have been more precise. In particluar I am interested to know what the use of map entities means for the framerate.
Theoretically I could build a gigantic map - hundreds of very complex modules combined to one huge object (I tried to make map entities out of a number of map entities - but that does not work).
In my attempts I saw that there is a cnsiderable deterioration of framerate when there are a few complex objects behind each other. This happens also when these objects are not visible.
So - are there any golden rules how to deal with that?