OptionalacesOptionaldebugRender AO debug mode (multiplies output by AO).
OptionalhdrSkip gamma on HDR canvases. Default reads ctx.hdr.
OptionaldepthOptionalblackMultiply the composited scene to black below the horizon. Off by default (matches CompositePass and StarsFeature), so the sky model's own lower-hemisphere ground tone shows through. Worlds whose geometry doesn't wrap to the horizon can turn it on so a downward look past the terrain edge reads black instead of bare lower-hemisphere atmosphere.
OptionalunderwaterOptionalunderwaterOptionalstarsDraw the procedural night star field (default true).
ACES filmic tonemap on by default (false = simple gamma).