OptionalmodeOptionalskyFlat sky color (linear RGB) for mode === 'color' / 'stars'.
OptionalskyProject-root-relative panorama path for mode === 'texture'.
OptionalsunOptionalrayleighOptionalmieOptionalozoneOptionalgroundOptionalenableOptionalstarsOptionalstarsStar brightness multiplier (catalog stars).
OptionalstarsRender the real Yale catalog instead of the procedural field.
Optionalstars0 clamps stars to the upper hemisphere; 1 wraps the full sphere.
OptionalstarsObserver latitude (degrees, +N) for catalog star orientation.
OptionalstarsSidereal rotation of the catalog sky (degrees about the pole).
OptionalplanetOptionalplanetOptionalatmosphereOptionalhorizonless
How the sky background is produced: procedural
'atmosphere', a flat'color', an equirectangular'texture', or a dark'stars'field.