Lightscapes is available to download in two different flavours for both Windows and Mac OS X. Lightscapes 1.0 is a stable version that can be used for real-time installations. Currently, Lightscapes 1.0 does not support the capturing of still frames or recording of video footage.
Lightscapes 1.1 beta does support the capturing of still frames, however at the moment the framerate is unsuitable for real-time installations. Please note that this version is unstable and is only recommended for high-end computers.