This property specifies which joint on an AI mesh is responsible for rotating their line of sight when it moves.

By default, humans (and everyone else) see from the rotation of their object, rather than their heads.

To fix this, set this propety to Head.

The height at which they see from is specified by the Z Offset in AI→AI Core→Vision Description; this property only affects the rotation from which the AI sees.

Property Name: AI_VisJoint