{
    "PBR param": {
        "BaseColorFactor": [
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            1.0,
            1.0,
            1.0
        ],
        "EmissionFactor": [
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            0.0,
            0.0
        ],
        "MetallicFactor": 0.5,
        "RoughnessFactor": 0.550000011920929,
        "AlphaMode": "OPAQUE",
        "BaseColorTexture": {
            "BaseColorTextureIndex": 0,
            "BaseColorTextureCoordIndex": 0
        },
        "NormalTexture": {
            "NormalTextureIndex": 1,
            "NormalTextureCoordIndex": 0
        }
    }
}