[
    {
        "id":"point",
        "point":[0,0,10],
        "primitive":"point"
    },
    {
        "id": "inst1",
        "primitive": "instance",
        "entity": "point",
        "matrix": [1, 0, 0, -20, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1]
    },
    {
        "id": "inst2",
        "primitive": "instance",
        "entity": "point",
        "matrix": [1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1]
    },
    {
        "id": "inst3",
        "primitive": "instance",
        "entity": "point",
        "matrix": [1, 0, 0, 20, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1]
    },
    {
        "id": "layer1",
        "primitive": "layer",
        "color": "green",
        "elements": ["inst1", "inst2", "inst3"]
    }
]