{
  "type": "minecraft:spline",
  "spline": {
    "coordinate": {
      "type": "minecraft:mul",
      "argument1": {
        "type": "minecraft:mul",
        "argument1": {
          "type": "minecraft:add",
          "argument1": 1,
          "argument2": "tectonic:region/diamond/dune/noise"
        },
        "argument2": {
          "type": "minecraft:spline",
          "spline": {
            "coordinate": {
              "type": "minecraft:add",
              "argument1": "tectonic:region/diamond/dune/noise",
              "argument2": {
                "type": "minecraft:abs",
                "argument": {
                  "type": "minecraft:shifted_noise",
                  "noise": "tectonic:region/diamond/dune_base",
                  "xz_scale": 1,
                  "y_scale": 0,
                  "shift_x": {
                    "type": "minecraft:mul",
                    "argument1": 16,
                    "argument2": "tectonic:region/diamond/dune/offset_z"
                  },
                  "shift_y": 0,
                  "shift_z": {
                    "type": "minecraft:mul",
                    "argument1": -16,
                    "argument2": "tectonic:region/diamond/dune/offset_x"
                  }
                }
              }
            },
            "points": [
              {
                "location": 0,
                "derivative": 0,
                "value": 0.8
              },
              {
                "location": 0.1,
                "derivative": 0,
                "value": 1
              }
            ]
          }
        }
      },
      "argument2": {
        "type": "minecraft:spline",
        "spline": {
          "coordinate": {
            "type": "minecraft:add",
            "argument1": "tectonic:region/diamond/dune/noise",
            "argument2": {
              "type": "minecraft:abs",
              "argument": {
                "type": "minecraft:shifted_noise",
                "noise": "tectonic:region/diamond/dune_base",
                "xz_scale": 1,
                "y_scale": 0,
                "shift_x": {
                  "type": "minecraft:mul",
                  "argument1": 16,
                  "argument2": "tectonic:region/diamond/dune/offset_x"
                },
                "shift_y": 0,
                "shift_z": {
                  "type": "minecraft:mul",
                  "argument1": 16,
                  "argument2": "tectonic:region/diamond/dune/offset_z"
                }
              }
            }
          },
          "points": [
            {
              "location": 0,
              "derivative": 0,
              "value": 1
            },
            {
              "location": 0.3,
              "derivative": 0,
              "value": 0.8
            }
          ]
        }
      }
    },
    "points": [
      {
        "location": 0,
        "value": -0.2,
        "derivative": 0
      },
      {
        "location": 1,
        "value": 0.2,
        "derivative": 0.7
      }
    ]
  }
}