env_surface

One surface shader for the whole of NEKO-9. pattern picks which material a fragment is: plaster, terrazzo, lacquered wood, wet concrete, worn brass, a neon tube, felt, a lacquer panel, a shelf of books, or massed foliage. Every pattern is analytic and projected from world space on the fragment's dominant axis, so a scaled cube reads as a made surface without a single texture byte, and one material serves a wall, a floor and a prop at whatever scale each happens to be.

detail_scale sets the world size of the pattern, wear and grime how used the surface is, sheen how much standing water the concrete holds, and emissive with emissive_strength what a neon tube burns at.