{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.857926,-0.513773,0.000000,0.000000,0.263071,-0.439291,0.858963,0.000000,-0.440531,0.735624,0.514577,0.000000,-2812262.795325,4696074.840333,3262964.245368,1],    "boundingVolume": {    "region": [2.110291,0.540452,2.110455,0.540577,0.000000,30.492566]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/12/8_399593.b3dm"}}}