{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950748,-0.309966,0.000000,0.000000,0.173378,-0.531798,0.828934,0.000000,-0.256399,0.786445,0.561929,0.000000,-1637079.536677,5021363.189846,3563834.467851,1],    "boundingVolume": {    "region": [1.885871,0.596631,1.886036,0.596800,0.000000,8.777975]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/4/3_1386997.b3dm"}}}