How to unwrap roughness 3D models for pros?

For professional 3D model roughness unwrapping, start with an optimized base mesh to prevent UV distortion, then use tools for clean UVs, bake detail, and test for quality. Use UV tools (e.g., Blender’s Smart Unwrap, Maya’s UV Editor) to create non-overlapping, evenly spaced UVs—place seams along less visible edges to minimize artifacts. Pros bake roughness from high-poly to low-poly (via Substance Painter) to retain detail, then test with a checkerboard texture to fix stretching. Practice with simple shapes (like cylinders) to master seam placement and UV packing before tackling complex models.