低调光影下的沉思者黑白肖像

{ "master_prompt": { "scene_type": "fine-art cinematic monochrome studio portrait", "reference_requirement": { "identity_match": "precisely match the uploaded reference image", "facial_structure_accuracy": [ "bone structure", "eye shape", "nose proportions", "jawline definition", "facial symmetry", "hairline", "beard density if present" ], "skin_texture": "authentic natural skin texture with visible pores and fine lines", "no_artificial_smoothing": true }, "subject": { "type": "mature confident man", "expression": { "mood": "serious, contemplative, quietly authoritative", "gaze": "deep-set eyes looking directly into the camera", "emotion": "focused and introspective, not aggressive" } }, "facial_hair": { "adaptive": true, "rules": [ "replicate beard exactly if present", "match density, length, shape, and edges", "preserve natural tonal variation including salt-and-pepper if visible", "beard lines clean and structured" ], "clean_shaven_rule": "if clean-shaven, emphasize natural jawline definition and skin texture" }, "hairstyle": { "adaptive": true, "requirement": "match hairstyle from reference image exactly", "details": [ "same volume", "same direction", "same hairline", "natural strand texture", "subtle specular highlights from overhead lighting" ] }, "pose": { "style": "classic thinker pose", "description": [ "one hand raised to chin", "thumb along the jawline", "index finger slightly curled", "knuckles and tendons subtly defined", "hand in sharp focus with natural skin texture" ] }, "lighting": { "style": "low-key fine-art studio lighting", "contrast": "high contrast but refined tonal control", "key_light": { "position": "slightly above eye level", "direction": "toward viewer's left angled downward", "type": "large softbox or diffused beauty dish", "effect": "strong top-plane highlights with crisp edge definition" }, "highlight_focus": [ "forehead center", "nose bridge", "upper cheekbones", "beard texture", "top planes of the hand" ], "shadow_control": [ "subtle shadow shaping under brow ridge", "defined cheekbone shadow", "deep but detailed shadow side", "midtone detail preserved" ], "fill_light": { "position": "minimal fill from front-center", "purpose": "maintain facial symmetry while preserving depth" }, "rim_light": { "intensity": "very subtle", "location": "hair edges and outer shoulder", "purpose": "separate subject from black" } } } }