Scene Director

**IMAGE PROMPT:**

A photographic, technical interior rendering of a mathematically perfect, 30-meter-diameter hemispherical dome, as viewed from the precise center of the floor, with the camera angled steeply upward to capture both the nadir and the sweeping bowl of the curve. The medium is precise large-format analog photography, visualized as if for a scientific optics journal c. 1970 — ultra-high resolution, maximal fidelity, geometric neutrality, and zero pictorialism: every curve, reflection, and gradation is mapped as phenomenon, not symbol.

**Light:**
The only light source is a solitary, cold-white point lamp (6000K, pure cyan-blue bias), situated exactly at floor level at the central nadir — directly beneath the dome’s apex but within the hemisphere. From this origin, a scalpel-beam spot projects upward, diverging in a sharp geometric cone, the rays fanning across the concave surface. As the beam strikes the immaculate plaster, the curvature is revealed solely by the bright, cold pool near zenith, fading rapidly toward indigo-black at the periphery. The light curves along the hemisphere, forming a visible, sharp-edged tangent line: the terminator. No other light sources exist — the entire dome is defined by the precise geometric falloff of light across its hyper-matte, chalk-white surface.

**Surface:**
Hyper-matte, flawless white plaster with micro-fine trowel chatter — any smoothing imperfections are rendered with clinical sharpness, especially where the glancing light catches minute ridges, giving a lunar, eggshell texture. The surface transmits a cold, faintly blue porcelain sheen at acute angles, while turning nearly black at the dome’s base where light cannot reach. Up close, the plaster reveals delicate hairline arcs and graphite-grey micro-pitting, especially in shadow tangents.

**Geometry:**
The composition is ruthlessly geometric: the dome is rendered as a pure hemisphere, horizonless, with a razor-sharp vertical axis. The symmetry is broken by