{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.950680,-0.310174,0.000000,0.000000,0.173236,-0.530967,0.829496,0.000000,-0.256747,0.786927,0.561095,0.000000,-1639296.089104,5024424.013865,3558533.395494,1],    "boundingVolume": {    "region": [1.886128,0.595686,1.886217,0.595729,0.000000,8.756279]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/8/12.b3dm"}}}