OK, so it slows down rendering a lot, but it's great. You can apply the motion blur to single frame renderings as well as animations. (The above post is a frame from an AVI, but I also tested it with just one frame; it works as long as there's motion before and after the frame you're rendering in the time-line.) The ship, by the way, is a ram-scoop design I'm working on for a project.... Critique always appreciated.