{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948855,-0.315713,0.000000,0.000000,0.176373,-0.530078,0.829403,0.000000,-0.261303,0.785328,0.561232,0.000000,-1668384.644227,5014216.153530,3559406.610797,1],    "boundingVolume": {    "region": [1.891936,0.595820,1.892073,0.595927,0.000000,8.812064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1147738.b3dm"}}}