RoundTreesPack/input/assets/architects_palette/blockstates/salmon_log.json

{
    "variants": {
        "axis=y":    { "model": "architects_palette:block/salmon_log" },
        "axis=z":    { "model": "architects_palette:block/salmon_log_horizontal", "x": 90 },
        "axis=x":    { "model": "architects_palette:block/salmon_log_horizontal", "x": 90, "y": 90 }
    }
}