How to hair a humanoid 3D model?

To hair a humanoid 3D model, use 3D software to create hair strands/systems, attach them to the scalp (or body), and tweak style for realism. First, pick tools like Blender’s Hair Particle System, Maya’s XGen, or Houdini’s Hair to generate hair—set density (strand count), length, and base shape (e.g., straight, curly). Next, refine details: add texture (thickness variation), apply physics (gravity, wind) for natural movement, and fix clipping through the model. If new, start with free Blender and simple styles (short hair, ponytails)—complex looks (long, layered) need practice with guide hairs and physics settings.