{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949131,-0.314883,0.000000,0.000000,0.116067,-0.349855,0.929586,0.000000,-0.292442,0.881489,0.370749,0.000000,-1866093.118180,5624845.686583,2349940.865115,1],    "boundingVolume": {    "region": [1.891075,0.379758,1.891183,0.379873,0.000000,65.359440]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/20_76597.b3dm"}}}