Xstream can be used as stand-alone.

Some new atmospheres. 

Here is the dumbed down (70% jpg quality) render of my large circular waterfall. (Click on it to expand the picture.) 1, 384,704 polygons for the waterfall. Broadcast quality 1024 x 780

Xstream 7 = 3 hours, 27 minutes

Xstream 6 = 16 hours, 51 minutes