{
    "MaterialDefinition": "engine:BuiltinRenderGraphResources/Primitives/primPbr.rematerialdefinition",
    "FunctionConstants" : {
        "EnableBaseColorMap"    : "false",
        "EnableNormalMap"       : "false",
        "EnableRoughnessMap"    : "false",
        "EnableMetallicMap"     : "false",
        "EnableAOMap"           : "false",
        "EnableClearcoat"       : "true"
    }
}