Is it possible to have UGUI world elements be visible on both sides - either reversed or same on the other side?
Not at present, unless you duplicate the entire UI and have it face the other direction. This is a limitation of the RealityKit material that we use for UI (ShaderGraphMaterial), which doesn’t have an option to change the cull face to enable double-sided rendering. We have suggested to Apple that they support this feature, but it might help convince them if you also suggest it via their Feedback Assistant.
If they don’t add the feature, we also plan to investigate generating additional geometry to support double-sided rendering (though this will come at a run-time cost).
hmm for now, is it better ot just add a dud quad or sprite renderer for the back?
I would think that if you’re using a SpriteRenderer for one side, it would probably be easiest to use a SpriteRenderer for the other side as well.