{
  "feature": "twilightforest:default_fallen_logs",
  "placement": [
    {
      "type": "minecraft:rarity_filter",
      "chance": 40
    },
    {
      "type": "minecraft:in_square"
    },
    {
      "type": "minecraft:heightmap",
      "heightmap": "OCEAN_FLOOR"
    },
    {
      "type": "twilightforest:no_structure",
      "value": {
        "additional_clearance": 0,
        "occupies_surface": true,
        "occupies_underground": false
      }
    }
  ]
}