When adding hair to a topology 3D model as a beginner, the key steps are planning the style, creating base strands, grooming for variation, applying textures, and starting simple.
First, map the hair’s style (e.g., short/long, straight/curly) and growth direction to the model’s scalp—this keeps your work focused. Next, use beginner tools like Blender’s Particle Hair or Maya’s XGen to make base strands, adjusting density (strand count) and length to match your plan. Then, groom the strands: add clumping or slight curls to avoid uniform, artificial hair—real hair has natural variation. Apply basic textures for color (e.g., roots to tips) and shine to make the hair look realistic. Finally, start with simple styles (like short straight hair) first—this helps you master tools without getting overwhelmed by complex designs.