We are trying to create a viewer which allows us to show and hide certain objects in the scene (similar to https://labs.sketchfab.com/experiments/watch-configurator/).
Our models are exported to Sketchfab using the .obj file format.
It seems that the various group types (o, g, etc.) in the .obj file are not respected by Sketchfab.
I have tried uploading various .obj files, that we and others have produced, and I always get a node tree similar to that shown below (one group node containing 6 geometry nodes).
If I convert this obj file to an fbx then all the expected nodes appear.
Is there a way of getting obj groupings working in Sketchfab?