{ "asset": { "version": "1.0" }, "extensionsUsed": [ "3DTILES_implicit_tiling", "3DTILES_metadata" ], "extensionsRequired": [ "3DTILES_implicit_tiling" ], "extensions": { "3DTILES_metadata": { "schema": { "classes": { "tile": { "properties": { "contentBounds": { "type": "ARRAY", "componentType": "FLOAT64", "componentCount": 4, "semantic": "CONTENT_BOUNDING_SPHERE" } } } } } } }, "geometricError": 4096.0, "root": { "transform": [ 2048, 0, 0, 0, 0, 2048, 0, 0, 0, 0, 2048, 0, 6500000, 0, 0, 1 ], "geometricError": 2048.0, "boundingVolume": { "box": [ 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1 ] }, "children": [ { "geometricError": 2048.0, "boundingVolume": { "box": [ 0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1 ] }, "content": { "uri": "empty.gltf" }, "extensions": { "3DTILES_implicit_tiling": { "subdivisionScheme": "OCTREE", "subtreeLevels": 3, "maximumLevel": 2, "subtrees": { "uri": "subtrees/{level}.{x}.{y}.subtree" } } } } ] } }