When I export a blender object as a GLTF file (and then import into a web app), I'm not completely sure as to how the object properties are mapped..
For example, I would usually export an object, and everything needed would be under the material and geometry properties (within the gltf object).
The other day, I combined a few objects into one (as per here), however, noticed that there were no 'material' and 'geometry' properties on the exported object.
I'm still pretty new to blender, so maybe this is quite an obvious question, but any help would be appreciated. Thanks.