Thx for your feedback! :-*
I already have the code ready to store everything locally once it has been streamed from the server. It gets stored on the harddisk, whichs requirers an installation-directory (as those files get pretty big I don’t want to put it in “<user.home>//” There are still some problems with the caching (when enabled, the HD IO happens in rendering thread…) but it’s definitly going to be cached in a proper way in the near future. It’s just that I’m rather busy at the moment.
Thanks for playing my renderer SO LONG :o (over 30min) you hold the record I guess 
Outrunning the streamed-terrain is not that hard when flying at 270km/h My upstream is like 40kb/s, while streaming at that speed requires 80-120kb/s. Walking around with normal speeds is 2-3kb/s.
Some new keys in the current version:
for changing near-terrain range: (500…1000m) -> HOME (more), END (less) , default = 750m
for changing far-terrain range: (1000…4000m) -> PAGEUP (more), PAGEDOWN (less), default = 2000m
4000m far-terrain looks quite realistic.
changing near-terrain is good for changing the framerate dramaticly (tree_count = visibility^2)
