Although I do have the deep version, I don't have the animation module, so can't do motion blur in TG. Could do it in photoshop. But you're right, if the camera is moving and following the crafts, you'd have motion blur everywhere else. But since the entire landscape would be out of focus (especially the foreground), I think it would kind of defeat the point of Terragen. I'll have a go in postprod, though, to see if it can be made subtle enough.