{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949115,-0.314931,0.000000,0.000000,0.116101,-0.349898,0.929565,0.000000,-0.292480,0.881454,0.370801,0.000000,-1866336.455298,5624626.626066,2350269.714123,1],    "boundingVolume": {    "region": [1.891126,0.379814,1.891234,0.379929,0.000000,72.367680]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/5/15/21_77372.b3dm"}}}