{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949626,-0.313385,0.000000,0.000000,0.175170,-0.530806,0.829193,0.000000,-0.259309,0.785765,0.561545,0.000000,-1655656.222437,5017014.751979,3561392.497887,1],    "boundingVolume": {    "region": [1.889502,0.596210,1.889601,0.596292,0.000000,12.457991]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/2/12_1443988.b3dm"}}}