nx_nxa_texbake_region_gate.nx

nx_nxa_texbake_region_gate.nx -- GATE for the per-region skin atlas + periodic micro-relief tile (TEXR), /compare/graphics GR29 gpe_skin_microsurface asset half (2026-08-30). WHAT IT PROVES, and the operator's bar it answers ("make sure we aren't just doing more smooth surface painting"): the relief is GEOMETRY. Every relief tooth below measures a HEIGHT field in microns or a normal DERIVED from one, never a colour. In-process over the SAME implementation the CLI ships (nx_nxa_texbake_region_lib), on the SHIPPED asset (gv_need), with runtime fixtures in /tmp/<gate>/. structural (res 256, all regions): TEXR appended additively, TEXM byte-identical, every prior section carried with its wordlen, 4 sets, adequacy predicate, idempotent, deterministic, seed-grain live, neg-control: sets disabled FAILS adequacy. geometry-not-paint (the micro tile, 480 px = 24mm): mean slope of the full-band tile exceeds the primary-only SMOOTH CONTROL by a factor derived from the band law; the dominant pore period measured on the height field equals the law's 800um pitch within one texel, and the smooth control has NO pits; the tile is exactly periodic; the normal map re-derives byte-for-byte from the height. anatomy (torso set at 2048 through the lib's probes): albedo at the mesh-derived apex darker than the skin ring by the ledger's lightness step; the estate's own nx_areola_pigment referee returns MATCH on the baked disc; height relief inside the areola exceeds the control ring outside. tension: no stretch field exists in the asset -- named as the next contract, not faked. license_tier: ORIGINAL No hw writes (Rule 26).