{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.949122,-0.314908,0.000000,0.000000,0.176033,-0.530558,0.829169,0.000000,-0.260562,0.785325,0.561581,0.000000,-1663655.959714,5014203.453176,3561622.189937,1],    "boundingVolume": {    "region": [1.891087,0.596242,1.891225,0.596348,0.000000,8.815213]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/12_1447760.b3dm"}}}