{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.858502,-0.512811,0.000000,0.000000,0.262614,-0.439645,0.858922,0.000000,-0.439685,0.736082,0.514646,0.000000,-2806861.888047,4698996.901682,3263404.921100,1],    "boundingVolume": {    "region": [2.109170,0.540533,2.109334,0.540658,0.000000,94.497633]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/5/9_270982.b3dm"}}}