{
 "id": "vehicle.military-land.tank/challenger2-tank",
 "version": 1,
 "name": "Challenger 2-style tank",
 "summary": "Challenger 2 style game tank, articulated healthy asset and tank-damage/v1 companion; metres, +Z gun forward.",
 "tags": [
  "2",
  "challenger",
  "challenger2",
  "era-modern",
  "land",
  "military",
  "style",
  "tank",
  "uk",
  "vehicle"
 ],
 "style": "realistic",
 "status": "approved",
 "frame": {
  "contract": "library/tracked-+Z-front-+X-left-origin-ground-centre",
  "up": "+Y",
  "unit": "m",
  "front": "+Z"
 },
 "size": {
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   "l": 11.548,
   "h": 3.119
  },
  "source": "measured",
  "class_band": "vehicle.military-land.tank",
  "band_axis": "length",
  "band": [
   6.5,
   11
  ],
  "in_band": false,
  "scale_to_class": 1.0
 },
 "bounds": {
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    0.001,
    -4.164
   ],
   "max": [
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    3.12,
    7.384
   ]
  },
  "footprint": {
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   "minX": -1.763,
   "maxX": 1.765,
   "minZ": -4.164,
   "maxZ": 7.384,
   "source": "measured"
  },
  "collider": {
   "parts": [
    {
     "type": "box",
     "x": 0.001,
     "y": 1.56,
     "z": 1.61,
     "hx": 1.764,
     "hy": 1.56,
     "hz": 5.774
    }
   ],
   "source": "guessed"
  }
 },
 "placement": {
  "role": null,
  "notes": null,
  "source": null
 },
 "sockets": [
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   "name": "wheel_l1",
   "role": "wheel",
   "parent": "Wheel_L1",
   "pos": [
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    0.78,
    3.34
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   "rot": [
    0,
    0,
    0,
    1
   ],
   "spin_axis": "X",
   "radius": 0.78,
   "steer": false,
   "source": "measured"
  },
  {
   "name": "wheel_l2",
   "role": "wheel",
   "parent": "Wheel_L2",
   "pos": [
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    2.63
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   "rot": [
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    0,
    0,
    1
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   "steer": false,
   "source": "measured"
  },
  {
   "name": "wheel_l3",
   "role": "wheel",
   "parent": "Wheel_L3",
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   "rot": [
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    0,
    0,
    1
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   "steer": false,
   "source": "measured"
  },
  {
   "name": "wheel_l4",
   "role": "wheel",
   "parent": "Wheel_L4",
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   "rot": [
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    0,
    0,
    1
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   "steer": false,
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  },
  {
   "name": "wheel_l5",
   "role": "wheel",
   "parent": "Wheel_L5",
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    0,
    0,
    1
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  },
  {
   "name": "wheel_l6",
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    0,
    0,
    1
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   "steer": false,
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  },
  {
   "name": "wheel_l7",
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    1
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  },
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  },
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  },
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  },
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  },
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  {
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  },
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    0,
    0,
    1
   ],
   "spin_axis": "X",
   "radius": 0.78,
   "steer": false,
   "source": "measured"
  },
  {
   "name": "exhaust",
   "role": "exhaust",
   "parent": null,
   "pos": [
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    1.3,
    -3.2
   ],
   "rot": null,
   "source": "authored"
  },
  {
   "name": "fx_ammo",
   "role": "fx",
   "parent": null,
   "pos": [
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    0.9,
    0.35
   ],
   "rot": null,
   "source": "authored"
  },
  {
   "name": "fx_engine",
   "role": "fx",
   "parent": null,
   "pos": [
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    1.54,
    -2.65
   ],
   "rot": null,
   "source": "authored"
  },
  {
   "name": "light_head_l",
   "role": "light",
   "parent": null,
   "pos": [
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    1.42,
    3.67
   ],
   "rot": null,
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  },
  {
   "name": "light_head_r",
   "role": "light",
   "parent": null,
   "pos": [
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    1.42,
    3.67
   ],
   "rot": null,
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  },
  {
   "name": "seat_driver",
   "role": "seat",
   "parent": null,
   "pos": [
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    1.72,
    2.65
   ],
   "rot": null,
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  },
  {
   "name": "fx_hatch",
   "role": "fx",
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   "pos": [
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    2.4,
    -0.06
   ],
   "rot": null,
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  },
  {
   "name": "muzzle",
   "role": "muzzle",
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   "pos": [
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   "rot": null,
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  },
  {
   "name": "seat_commander",
   "role": "seat",
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  },
  {
   "name": "seat_loader",
   "role": "seat",
   "parent": null,
   "pos": [
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    -0.35
   ],
   "rot": null,
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  }
 ],
 "nodes": {
  "body": [
   "Hull"
  ],
  "wheels": [
   "Wheel_L1",
   "Wheel_L2",
   "Wheel_L3",
   "Wheel_L4",
   "Wheel_L5",
   "Wheel_L6",
   "Wheel_L7",
   "Wheel_L8",
   "Wheel_L9",
   "Wheel_L10",
   "Wheel_L11",
   "Wheel_R1",
   "Wheel_R2",
   "Wheel_R3",
   "Wheel_R4",
   "Wheel_R5",
   "Wheel_R6",
   "Wheel_R7",
   "Wheel_R8",
   "Wheel_R9",
   "Wheel_R10",
   "Wheel_R11"
  ],
  "steer": [],
  "turret": [
   "Turret"
  ],
  "guns": [
   "Gun",
   "MG"
  ],
  "barrels": [
   "Barrel"
  ],
  "tracks": [
   "Track_L",
   "Track_R"
  ],
  "doors": [
   "Hatch_Commander",
   "Hatch_Driver",
   "Hatch_Loader"
  ],
  "damage": {
   "contract": "tank-damage/v1",
   "states": [
    "healthy",
    "stripped",
    "hit",
    "immobilised",
    "gun-out",
    "wreck"
   ],
   "parts": [
    {
     "node": "Part_EngineGrille_L",
     "twin": "Dmg_EngineGrille_L",
     "zone": "top",
     "pos": [
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      1.533,
      -2.66
     ]
    },
    {
     "node": "Part_EngineGrille_R",
     "twin": null,
     "zone": "top",
     "pos": [
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      1.533,
      -2.66
     ]
    },
    {
     "node": "Part_ExhaustShroud",
     "twin": null,
     "zone": "right",
     "pos": [
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      1.28,
      -3.242
     ]
    },
    {
     "node": "Part_Fender_FL",
     "twin": "Dmg_Fender_FL",
     "zone": "left",
     "pos": [
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      1.214,
      3.773
     ]
    },
    {
     "node": "Part_Fender_FR",
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     "zone": "right",
     "pos": [
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      1.212,
      3.772
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    },
    {
     "node": "Part_Fender_RL",
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     "pos": [
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      1.214,
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    },
    {
     "node": "Part_Fender_RR",
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     "zone": "right",
     "pos": [
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      1.214,
      -3.563
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    },
    {
     "node": "Part_FuelDrum_L",
     "twin": "Dmg_FuelDrum_L",
     "zone": "rear",
     "pos": [
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      1.22,
      -3.797
     ]
    },
    {
     "node": "Part_FuelDrum_R",
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     "zone": "rear",
     "pos": [
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      -3.797
     ]
    },
    {
     "node": "Part_Headlamp_L",
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     "zone": "front",
     "pos": [
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      1.42,
      3.607
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    },
    {
     "node": "Part_Headlamp_R",
     "twin": null,
     "zone": "front",
     "pos": [
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      1.42,
      3.607
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    },
    {
     "node": "Part_LampGuard_L",
     "twin": null,
     "zone": "front",
     "pos": [
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      1.466,
      3.68
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    },
    {
     "node": "Part_LampGuard_R",
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     "zone": "front",
     "pos": [
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      1.466,
      3.68
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    },
    {
     "node": "Part_Skirt_L1",
     "twin": "Dmg_Skirt_L1",
     "zone": "left",
     "pos": [
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      1.225,
      2.96
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    },
    {
     "node": "Part_Skirt_L2",
     "twin": "Dmg_Skirt_L2",
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     "pos": [
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      1.175,
      1.8
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    },
    {
     "node": "Part_Skirt_L3",
     "twin": "Dmg_Skirt_L3",
     "zone": "left",
     "pos": [
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      1.175,
      0.64
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    },
    {
     "node": "Part_Skirt_L4",
     "twin": "Dmg_Skirt_L4",
     "zone": "left",
     "pos": [
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      1.175,
      -0.52
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    },
    {
     "node": "Part_Skirt_L5",
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     "pos": [
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      -1.68
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    },
    {
     "node": "Part_Skirt_L6",
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     "pos": [
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      1.225,
      -2.84
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    },
    {
     "node": "Part_Skirt_R1",
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    {
     "node": "Part_Skirt_R2",
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    {
     "node": "Part_Skirt_R3",
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    },
    {
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    },
    {
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    },
    {
     "node": "Part_Skirt_R6",
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    },
    {
     "node": "Part_SpareLinks",
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     "pos": [
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      3.7
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    },
    {
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      -2.498
     ]
    },
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    },
    {
     "node": "Part_Tools",
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     "zone": "left",
     "pos": [
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      -2.475
     ]
    },
    {
     "node": "Part_TowCable_L",
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     "zone": "left",
     "pos": [
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      1.472,
      -0.055
     ]
    },
    {
     "node": "Part_TowCable_R",
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     "zone": "right",
     "pos": [
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      1.472,
      -0.055
     ]
    },
    {
     "node": "Part_Turret_Antenna_L",
     "twin": null,
     "zone": "turret",
     "pos": [
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      2.665,
      -1.15
     ]
    },
    {
     "node": "Part_Turret_Antenna_R",
     "twin": null,
     "zone": "turret",
     "pos": [
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      2.665,
      -1.15
     ]
    },
    {
     "node": "Part_Turret_Bin_L",
     "twin": "Dmg_Turret_Bin_L",
     "zone": "turret",
     "pos": [
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      1.98,
      -1.2
     ]
    },
    {
     "node": "Part_Turret_Bin_R",
     "twin": "Dmg_Turret_Bin_R",
     "zone": "turret",
     "pos": [
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      -1.2
     ]
    },
    {
     "node": "Part_Turret_BustleRack",
     "twin": "Dmg_Turret_BustleRack",
     "zone": "turret",
     "pos": [
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      1.85,
      -2.239
     ]
    },
    {
     "node": "Part_Turret_CommanderRing",
     "twin": null,
     "zone": "turret",
     "pos": [
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      -0.06
     ]
    },
    {
     "node": "Part_Turret_GunnerSight",
     "twin": null,
     "zone": "turret",
     "pos": [
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      2.247,
      2.118
     ]
    },
    {
     "node": "Part_Turret_LoaderRing",
     "twin": null,
     "zone": "turret",
     "pos": [
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      2.31,
      -0.35
     ]
    },
    {
     "node": "Part_Turret_Louvre_L",
     "twin": "Dmg_Turret_Louvre_L",
     "zone": "turret",
     "pos": [
      1.535,
      1.99,
      0.22
     ]
    },
    {
     "node": "Part_Turret_Louvre_R",
     "twin": null,
     "zone": "turret",
     "pos": [
      -1.535,
      1.99,
      0.22
     ]
    },
    {
     "node": "Part_Turret_PanoramicSight",
     "twin": null,
     "zone": "turret",
     "pos": [
      0.3,
      2.372,
      0.771
     ]
    },
    {
     "node": "Part_Turret_Smoke_L",
     "twin": null,
     "zone": "turret",
     "pos": [
      1.041,
      1.93,
      2.166
     ]
    },
    {
     "node": "Part_Turret_Smoke_R",
     "twin": null,
     "zone": "turret",
     "pos": [
      -1.041,
      1.93,
      2.166
     ]
    }
   ],
   "scars": {
    "hull-front": "Scar_Hull_Front",
    "hull-l": "Scar_Hull_L",
    "hull-r": "Scar_Hull_R",
    "hull-rear": "Scar_Hull_Rear",
    "turret-front": "Scar_Turret_Front",
    "turret-l": "Scar_Turret_L",
    "turret-r": "Scar_Turret_R",
    "turret-rear": "Scar_Turret_Rear"
   },
   "broken": {
    "Track_L": "Track_L_Broken",
    "Track_R": "Track_R_Broken",
    "Gun": "Gun_Broken"
   },
   "wreck": {
    "hull": "Wreck_Hull",
    "turret": "Wreck_Turret"
   },
   "attach": {
    "Hull_Damage": "Hull",
    "Turret_Damage": "Turret"
   },
   "file": {
    "key": "damage_glb",
    "tris": 89629,
    "bytes": 1043340,
    "gpu_mb_decoded": 3.9
   },
   "fx": {
    "ammo": [
     0.0,
     0.9,
     0.35
    ],
    "engine": [
     0.0,
     1.54,
     -2.65
    ],
    "hatch": [
     0.62,
     2.4,
     -0.06
    ]
   },
   "how": "load files.damage_glb once, add it at the tank origin, hide all of it; put Turret_Damage under the node in attach (same pivot); hit = show a Scar_ and swap a Part_ for its twin; stripped = hide Part_ nodes (or throw them); broken = swap the node for its _Broken twin; wreck = hide the whole healthy file, show Wreck_Hull (+ Wreck_Turret, which may be thrown off). Paint in both files takes the same colour."
  },
  "axes": {
   "Gun": {
    "yaw": [
     0,
     1,
     0
    ],
    "pitch": [
     -1,
     0,
     0
    ]
   },
   "MG": {
    "yaw": [
     0,
     1,
     0
    ],
    "pitch": [
     -1,
     0,
     0
    ]
   },
   "Turret": [
    0,
    1,
    0
   ],
   "Barrel": [
    0,
    0,
    -1
   ]
  },
  "limits": {
   "Gun": {
    "yaw": [
     0,
     0
    ],
    "pitch": [
     -0.12,
     0.35
    ]
   },
   "MG": {
    "yaw": [
     -1.0,
     1.0
    ],
    "pitch": [
     -0.15,
     0.6
    ]
   },
   "Barrel": [
    0,
    0.35
   ]
  }
 },
 "paint": {
  "encoding": "material factor",
  "material": "Paint",
  "default": [
   0.42,
   0.36,
   0.24
  ],
  "paints": [
   [
    0.42,
    0.36,
    0.24
   ],
   [
    0.105,
    0.145,
    0.078
   ],
   [
    0.16,
    0.175,
    0.085
   ],
   [
    0.21,
    0.235,
    0.2
   ],
   [
    0.72,
    0.75,
    0.7
   ],
   [
    0.037,
    0.051,
    0.033
   ]
  ],
  "names": [
   "Desert tan",
   "NATO green",
   "Olive drab",
   "Field grey",
   "Winter white",
   "Dark green-black"
  ],
  "colour_space": "linear",
  "how": "set the Paint material's color (linear RGB) to recolour; nothing else uses Paint"
 },
 "render": {
  "tris": 126001,
  "verts": 221625,
  "materials": 5,
  "draw_calls": 168,
  "textures": [
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     512
    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     512,
     512
    ],
    "fmt": "ktx2"
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   {
    "px": [
     1024,
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    "fmt": "ktx2"
   },
   {
    "px": [
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     256
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    "fmt": "ktx2"
   },
   {
    "px": [
     512,
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    "fmt": "ktx2"
   },
   {
    "px": [
     256,
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    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     512,
     512
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    "fmt": "ktx2"
   },
   {
    "px": [
     512,
     512
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    "fmt": "ktx2"
   },
   {
    "px": [
     512,
     512
    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     512,
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    "fmt": "ktx2"
   },
   {
    "px": [
     512,
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    ],
    "fmt": "ktx2"
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   {
    "px": [
     512,
     512
    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     256,
     256
    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     512,
     512
    ],
    "fmt": "ktx2"
   },
   {
    "px": [
     256,
     256
    ],
    "fmt": "ktx2"
   }
  ],
  "gpu_mb_decoded": 5.2,
  "bytes": 1435012,
  "codec": "draco",
  "extensions": [
   "KHR_draco_mesh_compression",
   "KHR_texture_basisu"
  ]
 },
 "rig": null,
 "animations": [],
 "gameplay": {
  "source": "measured"
 },
 "techniques": [
  "baked-pbr",
  "draco",
  "paint-factor",
  "textured"
 ],
 "provenance": {
  "author": "gpt-6-astra (Blender)",
  "source": "jobs/challenger2-tank-v1",
  "kit": "library-author",
  "job": "challenger2-tank-v1",
  "feedback": null,
  "imported": "2026-10-07",
  "file_origin": "~/forge-build/forge-assets/jobs/challenger2-tank-v1/challenger2-tank.glb"
 },
 "licence": {
  "kind": "owned",
  "game_use": true,
  "raw_redistribute": false,
  "evidence": "Forge Astra Blender job challenger2-tank-v1 (Nano Banana Pro sheet, CC0 Poly Haven textures: metal_plate, nor_gl, rusty_metal_03, rusty_metal_04)"
 },
 "quality": {
  "gates": "pass: 5 MB of 24 MB texture budget, 126001 tris",
  "judge": null
 },
 "files": {
  "glb": "sha256:3bfa598effdebd5c800653f5965d2f6ef23d1e5034a803e12cd119921a2b8517",
  "damage_glb": "sha256:55b5533ebbd35649ee833c2556a6e4535f1ee8d12da96eb553e4a41dcf948a63"
 },
 "deps": [],
 "release": "sha256:3a10cd13a90e163dfa11463e201fa5f2d9d2fdec7c8971f3ec6a3cff5a5fa47d"
}