Batch raised the need for a vertex shader for wind animation. It was done yesterday. Now the problem of fog...vertex program made fog of JME ineffective. I had to write a new one and with a lot of trouble I succeeded in that. The new quad batching of trees and the random rotation gave another big problem which is still just partially solved...too much rotation made billboarding very hard for me...still working on it. :-) But at last all is much faster. If that's finished I will release a pre-alpha again for testing purpose, before heading on to adding waters.