{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949570,-0.313556,0.000000,0.000000,0.115724,-0.350456,0.929402,0.000000,-0.291152,0.881720,0.371214,0.000000,-1857864.338092,5626329.078350,2352888.094435,1],    "boundingVolume": {    "region": [1.889663,0.380225,1.889801,0.380407,0.000000,4.769946]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/13/12_74768.b3dm"}}}