Feet, ground, then pack.
The home reported a 540px world with its ground at y=620. Other scenes mixed raw art bounds, collision bounds, and hand-set camera starts. The camera now derives its usable world height from the deepest walkable ground instead.
Original vertical anchor
The released client’s center plus scaled 150/600 y-offset resolves to a 75% avatar anchor, now shared by ordinary streets and homes.
Authored rooms repaired
Home exterior, interior, and other constructed scenes no longer trust a declared height that ends above their collision ground.
Catalog-wide regression
Automated coverage checks the lowest platform across more than 1,400 imported streets, plus the exact malformed-home case.