Unreal Engine – DayNight Cycle

Video: This system takes into account the realistic Solar and lunar position based on latitude, longitude, time of day and day of year. It also contains several colour grading textures which blend over the period of 24 hours, from Dawn to Night. This system also calculates Lunar phases. A Clock system and a calendar system are present to accurately calculate date and time.

Technical Details

639 Lookup textures

2 materials and 1 material instance

2 main Blueprints and 3 widget Blueprints

The Blueprint performs the following main functionalities -

- Sets DateTime functionality, like Clock and Calendar system based on given date and time.

- Calculates Sun's elevation and azimuth angle and moon's elevation and azimuth angle for a given date, time, latitude and longitude

- Calculates Moon's age to accurately determine moon phases in a given date and location.

Simple drag and drop the Blueprints in your level , along with a couple of directional lights for Sun and Moon respectively , and tweak the exposable parameters as required , and you have your very own fully functional realtime Daynight Cycle.