Here's a link to a little clip I made in Poser to try out motion tracking in HitFilm. I rendered the scenery in 2 layers (sky and ground) in Poser and for the figure exported a batch of movies of individual body parts with only the "origins" visible, tracked them in HitFilm and used lightning effects to draw the figure, rain and mist added in HitFilm too

 

http://www.youtube.com/watch?v=3QOuA8blbrg