When I generate a tileset using ctb-tile, for example:
./ctb-tile zug1.tif -o ../cesium/terrain/zug/
...and then I ask ctb-info about one of the tiles, it tells me something like this:
./ctb-info ../cesium/terrain/zug/0/1/0.terrain
Child tiles: NW
Tile type: all land
I am surprised by the (correct) list of child tiles. I found no mention of this in the quantized-mesh documentation [1] and there seems to be no side information (for example, it does _not_ look up the child files in the filesystem).
How is it possible that ctb-info can list the child tiles? Is it just an estimate? Are there some undocumented bits in the quantized-mesh format?
Adam Dominec
[1] GitHub - CesiumGS/quantized-mesh: Specification for streaming massive terrain datasets for 3D visualization.