What are the common mistakes when texture metallic 3D models?

Common mistakes when texturing metallic 3D models include overusing full metallicness, skipping roughness variation, and neglecting environment reflections. Overapplying metallicness makes surfaces unrealistically "chrome-like"—real metals have subtle matte areas (e.g., dirt, scratches). Skipping roughness removes wear, which is key for authenticity (a new vs. worn metal part looks different). Neglecting environment reflections (not using HDRIs to reflect surroundings) flattens the metallic look. For better results, use real metal references to tweak metallic/roughness values and test with a basic HDRI for realistic light interaction.