trueSKY Alpha bring's Simul's award-winning trueSKY to Unity for indie developers. The most advanced and performant system for real-time time-of-day, sky, cloud and weather effects, trueSKY has featured in triple-A games and simulators for the aviation industry, on television and in film.
trueSKY alpha requires Unity PRO 5.0 and above, and DirectX 11. It works with deferred and forward rendering. A version for Unity 4.5 and above is available on request.