How to fix too shiny in metallic 3D models?

To fix excessive shininess in metallic 3D models, reduce the material’s specular intensity or increase its roughness (or decrease glossiness) value. Specular intensity controls the brightness of reflective highlights—lowering it softens harsh shine. Roughness scatters light more, creating a less glossy, realistic metallic surface. In tools like Blender or Substance Painter, make small adjustments and preview under different lighting to avoid overcorrection and match your desired finish.