What are the top tips for mix UV maps 3D models?

When mixing UV maps for 3D models, organize UV shells by material or usage first—this avoids overlap and ensures texture consistency. Group UVs by their texture purpose (e.g., plastic vs. fabric) so textures apply cleanly. Keep scaling consistent for repeated elements (like buttons) to maintain uniform details. Test early with a checkerboard texture to fix stretching or misalignment before final textures. For beginners, practice with simple models (e.g., a chair with wood legs and fabric upholstery). Low-stakes projects help master grouping without overwhelm, building confidence faster.