To skin a humanoid 3D model for VTubing, follow three key steps: rig with a skeletal structure, assign vertex weights (weight painting), then test in VTubing software.
- **Rigging**: Use bones that match human anatomy (e.g., spine, limbs) so the model moves naturally with your facial/body inputs. - **Weight Painting**: Link mesh vertices to bones to ensure smooth deformation—fixes stretching or unnatural bends. - **Export & Test**: Upload the rigged model to VTubing tools (e.g., VRChat, Live2D) to map your motions to the model.
Beginners can simplify rigging with auto-tools like Mixamo or Blender’s Rigify, then refine weights for better performance.