Donten
World simulation engine

Cosmos

The cosmos is the backdrop of a scene, including galaxies, nebula, stars, planets, and satellites.

Distant stars

The Kirisame cosmos map is used to generate a star map relative to the local world.

Solar system

The engine runs a low-priority task to calculate the positions of local bodies relative to the world and local region.

These calculations are used in rendering distant bodies and processing world systems, such as time of day and energy absorption.