{
  "type": "minecraft:cache_once",
  "argument": {
    "type": "minecraft:add",
    "argument1": {
      "type": "minecraft:y_clamped_gradient",
      "from_value": 1.5,
      "from_y": -64,
      "to_value": -4,
      "to_y": 640
    },
    "argument2": "tectonic:terrain_spline/offset/final"
  }
}