It controls the movement of the sun and moon, the height of the sun in the sky during the year, brightness at night and calculates the ambient temperature (displayed in the lower left corner). The phases of the moon depend on the relative position of the sun and moon, and the brightness at night depends on the presence and phase of the moon.
The height of the sun at the beginning and end of the video:
Brightness during full moon and moonless night:
It also controls the spawning of stars (they are particles) and a few other minor things.
2 comments