{
  "preset_id": "Studio_3Point_Soft",
  "name": "3-Point Soft Lighting",
  "description": "Classic soft key, fill, and rim for portraits and products",
  "lights": [
    {
      "type": "rect_light",
      "role": "key",
      "position": {"x": -200, "y": -150, "z": 200},
      "rotation": {"pitch": -30, "yaw": 45, "roll": 0},
      "intensity": 20,
      "color": {"r": 1.0, "g": 0.98, "b": 0.95},
      "source_width": 150,
      "source_height": 100,
      "soft_source": true
    },
    {
      "type": "rect_light",
      "role": "fill",
      "position": {"x": 150, "y": -100, "z": 180},
      "rotation": {"pitch": -25, "yaw": -30, "roll": 0},
      "intensity": 8,
      "color": {"r": 0.95, "g": 0.97, "b": 1.0},
      "source_width": 200,
      "source_height": 150,
      "soft_source": true
    },
    {
      "type": "rect_light",
      "role": "rim",
      "position": {"x": 0, "y": 200, "z": 220},
      "rotation": {"pitch": -40, "yaw": 180, "roll": 0},
      "intensity": 15,
      "color": {"r": 1.0, "g": 1.0, "b": 1.0},
      "source_width": 100,
      "source_height": 80,
      "soft_source": true
    }
  ],
  "environment": {
    "sky_light_intensity": 0.5,
    "use_hdri": false
  }
}