Hi @zhang - We don’t have any current plan to add it. We are focused on core rendering/engine capabilities versus more vertical features like this one.
This is however a good point, and I acknowledge the demand there. Around the same topic, there has also been asks about 3D Tile.
Like a lot of those topics, while we cannot do it ourselves, we’d be happy to review a contribution and work together to finalize it if someone has time to do it.