For a look at the older versions, see the old product videos here: 4.24 to 4.25 and 4.8 to 4.23

Please refer to the image above labelled Features by Version for the major points of what is included in older versions. Enable Simulation features, which calculate the real world position of the Sun, Moon and Stars, using latitude, longitude, date and time.A full weather system is included, Ultra Dynamic Weather, which adds rain, snow, lightning, and more to your scene in seconds.Choose from volumetric 3D clouds, 2D dynamic clouds, static clouds, and even volumetric auroras.Animate a day/night cycle with a single click.Adjust cloud coverage from a clear sky to overcast.A built in lighting solution with sun, moon and sky lighting all synced with the sky.Fully dynamic, with customizable clouds, moon and stars.Set a single Time of Day variable and have every aspect of the sky update along with it, making changing the time your scene takes place a one step process.Ultra Dynamic Sky is a sky system designed to be more dynamic and natural than most sky solutions, offer a great degree of flexibility and customization options, with an interface designed for speed and simplicity.

Ultra dynamic sky ue4 free download