It's no accident that there is that much repetition in the models. It's also no accident that they are all nicely tiled in power of two axis aligned bounding bo

It's no accident that there is that much repetition in the models. It's also no accident that they are all nicely tiled in power of two axis aligned bounding boxes. Clearly these things take up enormous amounts of memory and need to be in some big octtree like hierarchy - so while they can instantiate these pretty impressive leaf nodes they can't do things like have them on uneven ground. So much work left to do.