{
  "1": {
    "_meta": {
      "title": "Load Flux Fill Model (fill or onereward)"
    },
    "class_type": "UNETLoader",
    "inputs": {
      "unet_name": "flux1-fill-dev-fp8.safetensors",
      "weight_dtype": "default"
    }
  },
  "10": {
    "class_type": "DifferentialDiffusion",
    "inputs": {
      "model": [
        "1",
        0
      ],
      "strength": 1.0
    }
  },
  "11": {
    "_meta": {
      "title": "Flux Fill conditioning"
    },
    "class_type": "InpaintModelConditioning",
    "inputs": {
      "mask": [
        "6",
        1
      ],
      "negative": [
        "8",
        0
      ],
      "noise_mask": true,
      "pixels": [
        "3",
        0
      ],
      "positive": [
        "9",
        0
      ],
      "vae": [
        "2",
        2
      ]
    }
  },
  "12": {
    "class_type": "KSampler",
    "inputs": {
      "cfg": 1.0,
      "denoise": 1.0,
      "latent_image": [
        "11",
        2
      ],
      "model": [
        "10",
        0
      ],
      "negative": [
        "11",
        1
      ],
      "positive": [
        "11",
        0
      ],
      "sampler_name": "euler",
      "scheduler": "normal",
      "seed": 720559880485925,
      "steps": 24
    }
  },
  "13": {
    "class_type": "VAEDecode",
    "inputs": {
      "samples": [
        "12",
        0
      ],
      "vae": [
        "2",
        2
      ]
    }
  },
  "14": {
    "_meta": {
      "title": "Person keep mask (grow+feather)"
    },
    "class_type": "GrowMaskWithBlur",
    "inputs": {
      "blur_radius": 12.0,
      "decay_factor": 1.0,
      "expand": 6,
      "fill_holes": true,
      "flip_input": false,
      "incremental_expandrate": 0.0,
      "lerp_alpha": 1.0,
      "mask": [
        "5",
        1
      ],
      "tapered_corners": true
    }
  },
  "15": {
    "_meta": {
      "title": "Resize to original size"
    },
    "class_type": "ImageResizeKJ",
    "inputs": {
      "crop": "disabled",
      "divisible_by": 0,
      "get_image_size": [
        "3",
        0
      ],
      "height": 1024,
      "image": [
        "13",
        0
      ],
      "keep_proportion": false,
      "upscale_method": "lanczos",
      "width": 1024
    }
  },
  "16": {
    "_meta": {
      "title": "Original person over new background"
    },
    "class_type": "ImageCompositeMasked",
    "inputs": {
      "destination": [
        "15",
        0
      ],
      "mask": [
        "14",
        0
      ],
      "resize_source": false,
      "source": [
        "3",
        0
      ],
      "x": 0,
      "y": 0
    }
  },
  "17": {
    "_meta": {
      "title": "Save Image"
    },
    "class_type": "SaveImage",
    "inputs": {
      "filename_prefix": "flux-bg-inpaint",
      "images": [
        "16",
        0
      ]
    }
  },
  "2": {
    "_meta": {
      "title": "CLIP+VAE source (MODEL unused)"
    },
    "class_type": "CheckpointLoaderSimple",
    "inputs": {
      "ckpt_name": "flux1-dev-fp8.safetensors"
    }
  },
  "3": {
    "_meta": {
      "title": "Main Image"
    },
    "class_type": "LoadImage",
    "inputs": {
      "image": "example.png"
    }
  },
  "5": {
    "_meta": {
      "title": "Segment PERSON (SAM3)"
    },
    "class_type": "SAM3Segment",
    "inputs": {
      "background": "Alpha",
      "confidence_threshold": 0.5,
      "device": "Auto",
      "image": [
        "3",
        0
      ],
      "invert_output": false,
      "mask_blur": 0,
      "mask_offset": 0,
      "max_segments": 0,
      "output_mode": "Merged",
      "prompt": "person",
      "segment_pick": 0,
      "unload_model": false
    }
  },
  "6": {
    "_meta": {
      "title": "Background mask (inverted)"
    },
    "class_type": "GrowMaskWithBlur",
    "inputs": {
      "blur_radius": 8.0,
      "decay_factor": 1.0,
      "expand": -4,
      "fill_holes": true,
      "flip_input": false,
      "incremental_expandrate": 0.0,
      "lerp_alpha": 1.0,
      "mask": [
        "5",
        1
      ],
      "tapered_corners": true
    }
  },
  "7": {
    "_meta": {
      "title": "Background prompt"
    },
    "class_type": "CLIPTextEncode",
    "inputs": {
      "clip": [
        "2",
        1
      ],
      "text": "sharp photorealistic background, same scene, crisp focus, fine natural texture, clean detail, natural depth, lighting and color temperature matching the subject, no blur, no artifacts, high detail, 4k"
    }
  },
  "8": {
    "_meta": {
      "title": "Negative (zeroed)"
    },
    "class_type": "ConditioningZeroOut",
    "inputs": {
      "conditioning": [
        "7",
        0
      ]
    }
  },
  "9": {
    "class_type": "FluxGuidance",
    "inputs": {
      "conditioning": [
        "7",
        0
      ],
      "guidance": 30.0
    }
  }
}