In particular embodiments, a computing system may initiate a scene alignment process to align a previous map of a scene with a current map of the scene. The system may send instructions to a user wearing an artificial-reality system to select a set of entities in the scene. The system may receive a selection of the set of entities in the scene. The system may determine a particular point in the scene based on an intersection of selected set of entities. The system may align the previous map with the current map based on the particular point in the scene. The system may load a scene model associated with the previous map into the current map.