Marco Hutter

Just to have the connection: This is also discussed in the forum at https://community.cesium.com/t/google-photorealistic-3d-tiles-polygon-classification/41010 (with the first response containing a few possible approaches, but further details can be discussed there).

> Crafting a solid generic definition of what an implementation is seems non-trivial but we can certainly define that for specific extensions on a case-by-case basis, likely with some buckets....

> Not quite. Ratification is mostly concerned about IP, rather than various edge cases or spec gaps. I would have expected _some_ form of "checklist" - even though, some of...