{
  "scene_index": 12,
  "shot_index": 4,
  "base_plan_id": "rooftop_room_interior_plan",
  "visual_domain": "interior",
  "camera": {
    "position": "On the living room and kitchen side of the personal bedroom doorway, just outside the threshold, placed very close to the floor and partially masked by the slightly open door leaf.",
    "heading": "Peers through the narrow doorway gap into the personal bedroom, aimed diagonally across the lower middle of the room toward the curtain zone at the back right.",
    "height": "low",
    "fov": "WS",
    "lens_note": "Wide low-angle observer view; draw a triangular camera wedge pointing through the open door slit with a wide dashed FOV cone crossing the threshold and covering the floor marker path."
  },
  "characters": [],
  "additions": [
    {
      "type": "door_state",
      "position": "Personal bedroom door between living room and kitchen and personal bedroom.",
      "note": "Show the door slightly open inward, with the door edge and threshold emphasized as a foreground framing slit for the camera view."
    },
    {
      "type": "threshold_reference",
      "position": "At the personal bedroom doorway floor line.",
      "note": "Mark the worn dirty threshold as the low-angle scale reference directly in front of the camera symbol."
    },
    {
      "type": "dark_fluid_stippled_region",
      "position": "Personal bedroom floor, lower middle to midground area visible through the doorway.",
      "note": "Add a dense glossy dark fluid stippled region as the primary floor evidence marker; keep it as an abstract plan overlay with no figure marker."
    },
    {
      "type": "dark_footprint_trail",
      "position": "Personal bedroom floor, dragging diagonally from the dark fluid stippled region toward the curtain zone at the back right.",
      "note": "Draw a distinct smeared dark footprint chain with dashed or stippled footprint symbols guiding the eye toward the curtain."
    },
    {
      "type": "curtain_state",
      "position": "Personal bedroom inner window or alcove zone, back right destination of the footprint trail.",
      "note": "Include the fabric curtain marker from the fixed room elements, dimly indicated as the ominous endpoint of the floor trail."
    },
    {
      "type": "lighting_note",
      "position": "Across the bedroom floor from the living room side.",
      "note": "Annotate weak cool screen spill and faint warm stand-lamp spill skimming the floor; use line notes only, no shaded render."
    }
  ],
  "t2i_prompt": "Overlay on the existing black-and-white rooftop-room interior floor plan, top-down technical drawing on a white background. In the living room and kitchen side just outside the personal bedroom doorway, place a triangular camera wedge labeled \"CAM-S12-Shot4 (WS, low angle, floor-level)\". The wedge must point through the slightly open personal bedroom door into the room. Draw a wide dashed FOV cone passing through the narrow door gap, using the door leaf and threshold as a through-object foreground frame. Inside the personal bedroom, add a dense glossy dark fluid stippled region across the lower-middle floor area, with a smeared dark footprint trail dragging diagonally toward the curtain zone at the back right. Keep the curtain as the destination point of the trail. Add a small note for weak cool screen spill and faint warm lamp spill skimming the floor. Do not add any human figure markers. Use only architectural overlay symbols, dashed lines, stippling, arrows, and concise common-noun labels.",
  "legend_updates": [
    {
      "symbol": "triangular wedge with point direction",
      "meaning": "camera position and lens direction"
    },
    {
      "symbol": "wide dashed cone",
      "meaning": "wide shot field of view through doorway"
    },
    {
      "symbol": "stippled dark patch",
      "meaning": "dark fluid stippled region"
    },
    {
      "symbol": "dashed smeared footprint chain",
      "meaning": "dark footprint trail direction"
    },
    {
      "symbol": "partly open door leaf with threshold emphasis",
      "meaning": "foreground doorway frame"
    }
  ]
}