Driver-Rig is an addon for Blender that automates the process of driving shape keys using armature bones. It provides tools to generate drivers connecting bone movement to specific shape key activation, reducing the manual setup typically required for facial rigs or object deformation.

The tool features a list-based system where you define control bones and assign which shape keys they should trigger. It includes options to generate a 3D UI with custom bone shapes for visual clarity. The addon supports complex setups where a single bone triggers multiple shape keys or multiple bones influence a single shape key. A driver exporter tool is included to bake armature motion and shape key data into keyframes for use in external engines like Unreal Engine and Unity.