At work I use Navisworks to do a variety of things, including using it to create animated construction timelines. Naviswork's rendering capability has improved over the years, but there's not many options for controlling how the timeline animation looks, and not many ways to speed up the rendering process. I find the way Naviswork's handles FOV to be quite annoying, and due to time constraints, the best I can hope to do is export viewport sequences. I hope to change that...