Rigging

Rigging is the process of building an internal skeleton of bones and controls for a 3D model so it can be posed and animated. The skeleton is attached to the mesh through skinning, which tells each vertex how to follow the bones. The finished rig acts like a digital puppet that animators can pose.

First an artist creates a hierarchy of bones or joints inside the model, then binds the mesh to that skeleton and paints skin weights that control how much each bone deforms the surrounding surface. Animator-facing controls, such as IK handles, are added so limbs can be posed intuitively. When a bone moves, the weighted geometry moves with it.

Rigging is building the skeleton and control system, while skinning is the specific step of binding the mesh to that skeleton and defining how vertices follow each bone. Skinning is part of the broader rigging process. Without good skin weights, even a well-built rig will deform the model badly.

Rigging creates the controllable skeleton, and animation is the act of moving those controls over time to create motion. Rigging is done once per model; animation reuses that rig for many different actions. A rigger builds the puppet and an animator performs with it.

In Blender you add an Armature, position its bones inside the mesh, then parent the mesh to the armature with automatic weights to bind it. You refine the deformation by editing skin weights in Weight Paint mode and can add inverse kinematics constraints for the limbs. Blender's free Rigify add-on can also generate a full biped rig automatically.

In Maya you create a joint hierarchy, bind the skin with the Bind Skin command, then adjust influences in the Paint Skin Weights tool and add IK handles and controllers. In Unreal Engine you typically import an already-rigged skeleton and use Control Rig to build runtime controls and procedural motion. Both rely on the same core concepts of joints and skin weights.

Auto-rigging is the automatic generation of a skeleton and skin weights for a model, usually by detecting a humanoid or standard shape and fitting a template rig to it. It saves the hours of manual bone placement and weight painting that traditional rigging requires. Tools like Blender's Rigify, Adobe Mixamo, and Meshy's built-in auto-rigging all offer this.

Rigging is one of the more technical 3D disciplines because it combines anatomy, hierarchy logic, and careful weight painting to get clean deformation. Simple prop rigs are quick to learn, but production-quality character rigs take real practice. Auto-rigging tools lower the barrier by generating a working skeleton you can use or refine.

Yes. Meshy offers automatic rigging that detects a humanoid character and generates a ready-to-use skeleton in minutes, without manual bone placement. You can then export the rigged model to FBX or GLB and animate it in Blender, Unity, or Unreal.