I've made a primitive approximation of a real-world location. I wish to create an AR experience in the location. I have made a Prefab of the 3D location object. I've added Plan Extraction Settings and Mars Environment Settings. I've created a Planes Visualizer. I can run the simulator, and planes will appear where I move the camera. Which is nice. I wish to populate this sim with signs that say "Fridge" and "Couch" and so on, to practice making signs that will aid in navigation in a real world location (like a shopping mall). I have no idea how to proceed. I recall there was a page somewhere that showed a photogrammetry city square, and I think they did there what I'm trying to do here. But I can't find that page anymore. Anyone know where it is?