Back in September 2005, at the PDC Microsoft Conference, CryTek, developers of Far Cry, released a movie that showcased some of the capabilities of the Cry Engine 2 under DirectX 10 API: dynamic day/night cycle, fully interactive enviroments, sunrays and diffuse transmission, real time soft shadows, soft particles, interactive/destructrible enviroments, volumetric clouds, and advanced shader technology. "GameHell"