{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950742,-0.309984,0.000000,0.000000,0.173177,-0.531145,0.829394,0.000000,-0.256558,0.786881,0.561246,0.000000,-1638091.285159,5024131.828419,3559494.133915,1],    "boundingVolume": {    "region": [1.885900,0.595781,1.886046,0.596000,0.000000,8.813958]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/15/12_1422119.b3dm"}}}