How to skin humanoid 3D models for animators?

To skin humanoid 3D models for animators, you create a skeletal rig matching the model’s anatomy, bind the mesh to the bones (rigging), and use weight painting to define bone influence on vertices. Weight painting ensures realistic movement—it lets you control which bones affect which vertices (e.g., a bicep bone only moves the bicep, so arms bend smoothly without distortion). Common tools include Blender (free, with Rigify for auto-rigs), Maya, or 3ds Max—all have built-in rigging and weight-painting features. For new users, try Blender’s Rigify: it auto-generates a basic humanoid rig, so you can focus on tweaking weights to learn bone influence without starting from scratch.