(Note: there are many questions about smoothing - but this does not seem to be a duplicate of those. I referenced some at the bottom of this post.)
I have a column. It should be smoothed around the z-axis, but not along horizontal edges.
I tried "Auto Smooth", but that did not have any effect at all (and I do not know why). So I disabled that option again.
So I pressed "Tools"->"Smooth" in Object-Mode, which smoothed all of the object (as expected). Then I went into Edit-Mode, selected the edges that I need to be sharp and pressed "Shading/UVs"->"Edges"->"Sharp". I thought it had an effect at first... but it seems not to.
Question: Why did neither "Auto Smooth" nor "Edges"->"Sharp" work for me?
- The answer to this question does actually split the edge into two edges, which a) I would like to avoid, and b) does not answer why the obvious ways did not work.
- The answers to this question offer a collection of fascinating ways to smooth/unsmooth things... but do also not answer my question of "why".