skyfog

The void Ashcross stands in, painted entirely in the fragment shader: a vertical grade from pit-dark at the bottom of the well through standing green to bone fog at the roofline, banks of domain-warped haze drifting over it, a warm bloom low in the frame where the district is burning, a cold shaft from above, gouache grain, and a vignette that closes the portrait frame.

Worn by art.backdrops.sky on one quad at z = -56, locked to the camera. scroll_x / scroll_y are written by the backdrop slice at the sky's parallax fraction (0.03) — the camera is orthographic and gives none for free.

fog_amount, glow_color and vignette are what the nine bells turn.