Students can export normal maps from 3D models using free tools like Blender or software like Substance Painter—key steps include UV unwrapping and export settings.
First, unwrap your model’s UVs (2D surface layout)—normal maps rely on this to link 2D details to 3D geometry. In Blender, add a Normal Map node in the Shader Editor, then go to File > Export > Export Images to save as PNG/TGA. For Substance Painter, use the Export Textures panel after adding details—select a normal map preset for tools like Unity.
Beginner tip: Start with a simple subdivided cube. It makes learning how 3D details translate to 2D normal maps easier without complex shapes.