Не скажи..
Вот ребята которые работали над "Panic Room" считают преймуществом, в данном случае пакета Softimage|XSI - возможность сразу рендерить в .avi
http://www.softimage.com/Community/Xsi/Mag/Cs/Volume_2/Issue_4/PLF.htm
Вот вырезка:
“In other packages, you could only render out scenes as pics,” says Frankel. “For Panic Room, we completely changed our workflow and rendered everything out as .AVI files. Doing so made it easier to manage the huge number of files we were working with, but it also made it possible for us to sit down with the director and review material by simple double-clicking on files. What’s more, we could load up an .AVI file, the director could make changes as he was sitting there and we could hit a button for the next frame capture