tid_chrome

Mirror-chrome surface shader for the tides ring. Reflection rays sample the same sky_env sunset environment tid_sky renders, so the chrome mirrors the dome exactly; rays reflecting downward pick up a dusk-sea response — deep body warming toward the horizon at grazing angles with the sun's glitter path mirrored in — so the ring reads as standing in the water it reflects. A noise micro-jitter (jitter) keeps the mirror from being razor-perfect, a tight direct sun ping rides the rim, and a faint horizon-glow floor keeps unlit faces from going dead black. Palette properties are shared with the other tid_* materials from one table in the part module.