No Last Layer
All three pieces of material are too large to be seen in full within the viewport. They meet in three places: blue lies over yellow-green, yellow-green lies over purple, and purple returns to lie over blue. Each local relation is clear, but taken together there is no layer that can rest securely as the final layer. What the image preserves is not a seam, but a fact that cannot be explained by a single front-to-back order.
The darker broad faces inside the materials preserve their respective directions. They follow new bends at different speeds, so the contact zones do not breathe neatly in unison: the faster face has already yielded, while the slower face still carries the previous angle. The default motion keeps passing pressure from one place to another, but it does not complete the next layer swap on the viewer’s behalf.
Sweep once from the lower left toward the upper right, and the three local occlusions will rotate as a whole. After release, the bright trace left by the gesture disappears, but the new order does not withdraw; the materials simply continue settling at their own speeds. Press R to reform the same seed’s trial, space to pause, and S to save this moment.
I originally thought continuity could only be proven by rupture. By this point, the question had become another kind: if every small place makes sense on its own, while together they negate one another, are we looking at an object, or at three pieces of local testimony that cannot be summed up?