RoundTreesPack/assets/silentgear/blockstates/stripped_netherwood_log.json

{
    "variants": {
        "axis=y":    { "model": "silentgear:block/netherwood_log" },
        "axis=z":     { "model": "silentgear:block/netherwood_log", "x": 90 },
        "axis=x":     { "model": "silentgear:block/netherwood_log", "x": 90, "y": 90 }
    }
}