Hello I tried to modify and add mesh to an object that already has smooth shading. I can't figure out how to smooth only the new part of the mesh I just added. If I smooth shade the whole object again I will just add unnecessary vertices to the whole object.

Are there any alternatives to splitting the new part of the object mesh into a separate object and smooth shading as a separate object and reintroducing it to the mesh?

• Smooth shading doesn't add any new geometry rather than edits normals of already existing. You can just select all in Edit mode and choose Smooth shading from Specials menu (shortcut W). Apr 29, 2017 at 21:04
• Are you usingW > Shade Smooth or, W > Smooth? If you're using just the Smooth feature it will move the mesh a little bit possibly giving the appearance of new verts/geometry. That being said, Mr Zak is right, the W > Shade Smooth option shouldn't create any new geometry. Apr 29, 2017 at 22:08