{
    "name": "concrete1",
    "depth": 20,
    "n": {
        "pass-mode": "blocked",
        "wall": {
            "pixel-size": "64 x 192"
        },
        "side": {
            "pixel-size": "20 x 192"

        },
        "corner": {
            "pixel-size": "20 x 192"
        },
        "top": {
            "pixel-size": "192 x 20"
        }
    }
}