Five-reference experiment
Multi-image solutions are very ugly!
Find G such that Πi(G) ≈ Ii
Each image Ii asks one geometry G to match a camera projection Πi. With real calibrated photos, extra views reduce ambiguity. With separately generated views, the windows, hull, proportions, and camera can shift between frames. Then no single geometry satisfies every image.
Why one worked better here: one clean image supplied one internally consistent silhouette, texture, and perspective. The model inferred the unseen surfaces once instead of averaging contradictory evidence.
The limit: a single image still cannot reveal hidden geometry. Current generators trade geometric truth, texture fidelity, topology, and view consistency against one another. None solves all four perfectly yet. The working result below shows how close the practical output can already get.