It would probably fall somewhere between "substantial architectural overhaul" and "partial rewrite" because it’d require redesigning the topological representation to eliminate seam edges.
Some of these issues are long standing and really hard to solve. Someone could probably defend an entire PhD thesis on “redesigning the topological representation to eliminate seam edges” without making much practical progress
Some of these issues are long standing and really hard to solve. Someone could probably defend an entire PhD thesis on “redesigning the topological representation to eliminate seam edges” without making much practical progress