Yesterday I didn't do a lot. The biggest thing was installing FreeBSD to my machine. I wanted to have the /usr-partition (or better slice) on my second disc. That turned out to be a bit of a problem, as FreeBSDs fdisk can only see primary partitions and the second disc doesn't have any left. So I created the partition in Linux, changed the type, labeled it in FreeBSD, created the file system and moved /usr from a minimal install over. It is running now, only X11 is still a problem, there is no NVIDIA driver for AMD64 for FreeBSD (the OS is lacking a feature).
So today I worked on the plants, the directional bias is now applied at a different place. I rendered one tree and it looked different. But I need to change some probabilities, then I hope it looks better. I still hope that I now have all needed parts in place.