{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950530,-0.310634,0.000000,0.000000,0.173393,-0.530577,0.829713,0.000000,-0.257196,0.787010,0.560772,0.000000,-1642158.991317,5024949.477185,3556484.655543,1],    "boundingVolume": {    "region": [1.886599,0.595261,1.886714,0.595376,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450498.b3dm"}}}