SKILL: Dramatic Chiaroscuro

Version: 1.0 | Hermes Agent Lighting System

DESCRIPTION

The Baroque technique of extreme light-dark contrast using a single dominant source. Derived from Italian chiaro (light) and scuro (dark). Creates psychological depth, volumetric form, and narrative tension. Associated with Caravaggio, Rembrandt, and modern film noir. Prioritizes shadow as an active compositional element rather than absence of light.

TRIGGER KEYWORDS

chiaroscuro, dramatic lighting, Rembrandt lighting, single light source, film noir lighting, dramatic shadow, dark portrait, spotlight, Caravaggio lighting, theatrical light, high contrast, dark and moody, tenebrism, shadow play

CORE RULES

• Single dominant source; any fill is minimal and preserves shadow depth
• Shadow occupies majority of frame — 50-80% darkness is correct
• Rembrandt triangle: lit triangle on shadow-side cheek, no wider than eye, no taller than nose
• Key light at 45°–90° from camera axis, above eye level for drama
• No flat ambient light — any bounce must be very weak
• Shadow is active and intentional, not absence of light
• Texture revelation: light grazing surfaces at 5–15° reveals skin, fabric, stone detail