A pet chasing across a "PR - Pet Blocker" stops in front of it; a
carver_only navmesh carver added without an object stops an enemy and goes
away with the physics world; carver_only alone blocks nothing; a Robot City
hedge's blocker has the size and offset of its collision shape.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>