how to convert z-up gltf ，i add “gltfUpAxis” : “Z” in gltf file，but it did not work
Hi yelanzhou,
GLTF files are defined as having +Y as the up axis.. The best solution is to rotate your model so that +Y is up before uploading to Cesium ion.
Can you share any more information about your use case? Adjusting the up direction at tiling time is not a feature we currently support, but may consider adding it in the future.
Regards