You’ll agree how much trees are helpfull for considering the real size of such a scene.
Good news: I’ve flown accross 52 kilometers (up to this view actually) and no memory leak pointed out!
Bad news: I’m already consuming 700 Mb of memory. That’s a little expensive at this point, since future cities are going to be very greedy too. Nothing serious… but I have to plan a “code cleaning” day soon ^_^’