{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950537,-0.310613,0.000000,0.000000,0.173385,-0.530591,0.829705,0.000000,-0.257176,0.787008,0.560784,0.000000,-1642031.007538,5024940.142814,3556556.451930,1],    "boundingVolume": {    "region": [1.886576,0.595275,1.886692,0.595389,0.000000,8.803719]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_1450539.b3dm"}}}