Module sky 

Procedural atmosphere: time of day drives the sun/moon direction, light colour and ambient. The renderer draws the sky itself from the same settings, so light and sky always agree.

Structs

SkySettings

Serializable procedural sky, celestial lighting and day/night animation controls.

Functions

ambient

Hemisphere ambient light colour for the time of day.

main_light

The strongest light in the sky right now: (direction towards it, linear colour, intensity). The sun by day (orange near the horizon), a dim blue moon at night.

moon_illumination

Fraction of the moon’s disc that is lit: 0 at new moon, 1 at full moon.

sun_direction

Unit vector pointing from the world towards the sun. Rises in +X at 6:00, peaks at noon, sets in -X at 18:00.