I am importing an SVG shape and rotating it using the screw modifier.
I have applied the Shade Smooth on the two examples below.
On the left, the object is still a curve with the screw modifier, and on the right, it is converted to mesh.
On the mesh, I have checked that I have "Clear Seams" and "Clear Sharp" edges on edit mode, but I still have flat reflections.
The specific problem appears when I activate the Auto Smooth checkbox, so I get rid of the ridges of geometry on the left, regardless of the Auto Smooth angle (right).
Can you please tell me how to smooth this?
Here is the file: http://otake.com.mx/Foros/Blender/Bottle.blend