{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.948857,-0.315707,0.000000,0.000000,0.176374,-0.530091,0.829395,0.000000,-0.261295,0.785321,0.561245,0.000000,-1668335.794599,5014174.745712,3559487.294721,1],    "boundingVolume": {    "region": [1.891930,0.595836,1.892067,0.595942,0.000000,8.812064]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1147929.b3dm"}}}