`animLodDistance` (0..=300 yd, default 60, `0` off) adds a distance leg to the animation-LOD
gate: a rig past it parks its pose evaluation even when it is in frame and in a PVS-visible
room, joining the frustum and room legs. The gate reads the world camera's `GlobalTransform`
for the position. `0` restores the shipped frustum-and-room-only behaviour.