3D Tiles v1.1 - 3DTILES_content_gltf extension

Thanks again for the update. It really helped my understanding. While I still have some confusion, I just want to know how I can get the tileset.json.

In case of 3D Tiles 1.0 and the 3D Tiling Pipeline, the relevant tilers provide tileset.json as part of the output tileset. However, now I intend to use glTF 2.0 assets directly as 3D Tiles v1.1 content. Here, I don’t know how to describe/write the tileset.json.

  • Is the JSON format the same as that of 3D Tiles v1.0?
  • How can I lay out the root and children tiles?
  • How can I calculate each tile’s boundingVolume, geometricError, etc.

Let’s consider a single glTF file at cesium/Apps/SampleData/models/CesiumAir/Cesium_Air.glb at main · CesiumGS/cesium · GitHub, and suggest me a tileset.json to access it. That will greatly consolidate my comprehension.

Many thanks,