ffe.cinema.look — the light of FIRE FOR EFFECT. Everything here is a pure function of film time. Four sources carry the whole arc between them: THE SUN crosses 11 deg to 4 deg of elevation and 262 to 271 of azimuth, reddening from gold to blood as it drops. It is the scene's sun (a `Light` of kind `directional` on the entity `Sun`), so it owns the cascade shadows that rake east across the snow and lengthen all film. THE FILL a cold blue-violet distant light from the opposite side of the saddle. It is what makes snow in shadow read (0.13, 0.18, 0.33) instead of black. THE UNDERFIRE a distant light travelling straight UP, the colour of the orange welling through the torn deck. Zero for the first half of the film, riding `Film.ruin(t)` after — the reason half the light in shot 16 comes from below. THE AIR a physical atmosphere, so three kilometres of deck are seen through three kilometres of air, plus height fog that pools on the saddle as gun smoke accumulates. Two things about the light rig that were established by looking, not read: * The scene's sun is a `Light { kind = "directional" }`. A `DirectionalLight` component is an ADDITIONAL distant row and does not hold the cascade set, so the sun of a film with raking shadows has to be the former. The scene build places a `DirectionalLight` on `Sun`; `build()` replaces it with the sun proper. * Nothing in this file goes through the `lighting` toolbox. `setSun` and `setAmbient` fault on any entity carrying a `DirectionalLight` (#10510) and spawn scene-durable light entities outside `FilmRoot`. Every light here is a component this slice writes directly, on an entity it owns.