{
  "line_quad": "4-QUADRANT WALL ELEVATION line drawing of the interior room shown in the architectural floor plan reference image. Each quadrant shows ONE wall as if standing at the room's geometric center looking directly at that wall (orthographic frontal elevation, no perspective).\n\nLayout (2x2 grid, thin black grid dividers between quadrants):\n- TOP-LEFT quadrant: NORTH wall elevation, label 'N' in top-left corner.\n- TOP-RIGHT quadrant: EAST wall elevation, label 'E' in top-left corner.\n- BOTTOM-LEFT quadrant: WEST wall elevation, label 'W' in top-left corner.\n- BOTTOM-RIGHT quadrant: SOUTH wall elevation, label 'S' in top-left corner.\n\nStrict requirements:\n- PURE BLACK LINE on WHITE background. No shading, no hatching, no fill, no color, no texture, no gray tones. Architectural line drawing only.\n- Orthographic frontal projection — NO perspective, NO foreshortening, NO vanishing points. Each wall drawn flat as in elevation drawings.\n- Show as simple outlined contours: wall outline, floor line, ceiling line, door openings (with arc indicating swing if applicable), window frames with mullions, fixed built-ins (kitchen counter, bathroom sink, fixed shelving), and any furniture silhouettes that touch or sit against this wall (bed, table, chair, TV stand, etc.) viewed from the front.\n- Maintain EXACT wall length, door positions, window positions, and furniture placement consistent with the floor plan reference. Walls that are interior partitions in the plan should be drawn as the visible inner side from the room center.\n- Furniture in front of the wall: outline only, no internal detail. Show where it sits along the floor line.\n- Quadrant corner labels (N/E/W/S) in ENGLISH ONLY, small clean sans-serif.\n- No overlaid text other than the quadrant labels. No captions, no dimensions, no notes, no compass rose.\n\nCanon (for furniture/fixture inventory only, not for style): Building: stories=low-rise multi-family residential building with a small rooftop room; exact story count unspecified; primary_material=aged concrete, weathered metal door panels, rough roof slab, chipped painted railings; exterior_stairs=steep worn concrete exterior stairs with chipped metal railing and stained peeling side walls, connecting a rear courtyard to the rooftop landing; rooftop_features=water tank, clothesline, low outdoor platform, dried plant leaves, rough parapet, weathered iron entry door, small lit window; window_pattern=small practical windows with dirty glass, thin curtains, and limited daylight; rooftop room window is visually prominent at night and dawn; weathering=heavy damp staining, cracked concrete, chipped paint, rusted door frame, gritty roof surface, shadowed narrow exterior spaces; colors=dirty gray concrete, faded blue-gray shadow, rust brown metal edges, dull off-white interior walls, muted wood furniture, cold red and blue emergency light accents. Interior: wall_finish=old worn wallpaper and stained plaster-like surfaces, mostly dull off-white or gray beige, with occasional temporary circular marker states; floor_finish=plain worn floor surface suited to a small rooftop dwelling, sometimes clean, sometimes marked by muddy footprints or dark fluid traces depending on scene state; ceiling=low modest ceiling implied by compact rooftop-room scale, with dim domestic ambience and no decorative ceiling features specified; lighting_fixtures=small-window daylight, old television screen glow, dim living-room floor lamp, cold dusk light from open window, bathroom mirror-side practical light implied by reflection visibility; general_clutter_level=normally modest and lived-in; can shift to unnervingly spotless bedroom order or heavily disturbed living-kitchen disorder according to scene state",
  "photo_from_line": "Photorealistic 4-QUADRANT COMPOSITE showing 4 different eye-level camera views of the SAME interior room, arranged in a 2x2 grid with thin black dividers between quadrants.\n\nTwo reference images are provided:\n- FIRST reference: a 4-quadrant LINE ELEVATION drawing (architectural black-on-white line art) showing the exact wall layout, doors, windows, and furniture silhouettes for each of the 4 walls (N=TL, E=TR, W=BL, S=BR).\n- SECOND reference: the original architectural top-down FLOOR PLAN.\n\nQuadrant assignment (MUST match the line elevation reference exactly):\n- TOP-LEFT quadrant: photorealistic interior view of the NORTH wall — reproduce the silhouettes of doors, windows, furniture from the line reference TOP-LEFT, but rendered with materials, lighting, and depth. Label 'N' in the top-left corner.\n- TOP-RIGHT quadrant: photorealistic view of the EAST wall, matching line reference TOP-RIGHT. Label 'E'.\n- BOTTOM-LEFT quadrant: photorealistic view of the WEST wall, matching line reference BOTTOM-LEFT. Label 'W'.\n- BOTTOM-RIGHT quadrant: photorealistic view of the SOUTH wall, matching line reference BOTTOM-RIGHT. Label 'S'.\n\nStrict requirements:\n- Each quadrant must REPRODUCE the wall, door, window, and furniture positioning from the corresponding line-elevation quadrant. Do not invent additional walls, doors, or furniture.\n- Camera at room center, eye-level approx 1.6m, slight wide angle ~28mm.\n- Visual identity (wall finish, floor finish, ceiling, lighting fixtures, color palette, weathering) consistent across all 4 quadrants — same room, same daylight, just facing 4 different walls.\n- Photorealistic 35mm cinematic still aesthetic. Soft natural daylight from window mixed with dim domestic practicals (weak floor lamp, faint old television glow). Realistic shadows, subtle film grain, lived-in details (dust motes, scuff marks, subtle wear).\n- No people, no characters, empty room, uninhabited.\n- No overlaid text inside quadrants other than the corner labels. No diagram lines other than the 2x2 grid divider. No architectural label letters from the floor plan.\n- Quadrant corner labels (N/E/W/S) in ENGLISH ONLY, small clean sans-serif.\n\nCanon: Building: stories=low-rise multi-family residential building with a small rooftop room; exact story count unspecified; primary_material=aged concrete, weathered metal door panels, rough roof slab, chipped painted railings; exterior_stairs=steep worn concrete exterior stairs with chipped metal railing and stained peeling side walls, connecting a rear courtyard to the rooftop landing; rooftop_features=water tank, clothesline, low outdoor platform, dried plant leaves, rough parapet, weathered iron entry door, small lit window; window_pattern=small practical windows with dirty glass, thin curtains, and limited daylight; rooftop room window is visually prominent at night and dawn; weathering=heavy damp staining, cracked concrete, chipped paint, rusted door frame, gritty roof surface, shadowed narrow exterior spaces; colors=dirty gray concrete, faded blue-gray shadow, rust brown metal edges, dull off-white interior walls, muted wood furniture, cold red and blue emergency light accents. Interior: wall_finish=old worn wallpaper and stained plaster-like surfaces, mostly dull off-white or gray beige, with occasional temporary circular marker states; floor_finish=plain worn floor surface suited to a small rooftop dwelling, sometimes clean, sometimes marked by muddy footprints or dark fluid traces depending on scene state; ceiling=low modest ceiling implied by compact rooftop-room scale, with dim domestic ambience and no decorative ceiling features specified; lighting_fixtures=small-window daylight, old television screen glow, dim living-room floor lamp, cold dusk light from open window, bathroom mirror-side practical light implied by reflection visibility; general_clutter_level=normally modest and lived-in; can shift to unnervingly spotless bedroom order or heavily disturbed living-kitchen disorder according to scene state",
  "canon": "Building: stories=low-rise multi-family residential building with a small rooftop room; exact story count unspecified; primary_material=aged concrete, weathered metal door panels, rough roof slab, chipped painted railings; exterior_stairs=steep worn concrete exterior stairs with chipped metal railing and stained peeling side walls, connecting a rear courtyard to the rooftop landing; rooftop_features=water tank, clothesline, low outdoor platform, dried plant leaves, rough parapet, weathered iron entry door, small lit window; window_pattern=small practical windows with dirty glass, thin curtains, and limited daylight; rooftop room window is visually prominent at night and dawn; weathering=heavy damp staining, cracked concrete, chipped paint, rusted door frame, gritty roof surface, shadowed narrow exterior spaces; colors=dirty gray concrete, faded blue-gray shadow, rust brown metal edges, dull off-white interior walls, muted wood furniture, cold red and blue emergency light accents. Interior: wall_finish=old worn wallpaper and stained plaster-like surfaces, mostly dull off-white or gray beige, with occasional temporary circular marker states; floor_finish=plain worn floor surface suited to a small rooftop dwelling, sometimes clean, sometimes marked by muddy footprints or dark fluid traces depending on scene state; ceiling=low modest ceiling implied by compact rooftop-room scale, with dim domestic ambience and no decorative ceiling features specified; lighting_fixtures=small-window daylight, old television screen glow, dim living-room floor lamp, cold dusk light from open window, bathroom mirror-side practical light implied by reflection visibility; general_clutter_level=normally modest and lived-in; can shift to unnervingly spotless bedroom order or heavily disturbed living-kitchen disorder according to scene state",
  "plan_png": "/Users/manta/Documents/Projects/TheRoad-I1/backend/scripts/output/floor_plan_v4/run_20260426_123950/base_plan_small_rooftop_room_interior.png"
}