The magic wand has no effect on the resolution of a shell.
In the attached image I had 2 different magic wand settings and the curved profile (was half of a long, flat ellipse) is identical.
The only resolution we can control is the resolution around the rotation axis of the revolved shells.
The resolution of the actual shell profile is all automatic based on what GS thinks we want. This was much worse than it is now during beta testing. We had a slight win to get the reolution improved but still it would be better if the user could set it.
Each curve in a profile has its own minimum and maximum number of segments based on a maximum deviation away from the true curve. I believe tha max number is set to 36. Hence small radius curves don't look to bad (look at the pointy end of the shell in this image) where as the flatter curves can look terrible and visually segmented as in this image.
There is a way of changing this but involves modifying registry values (Windows OS - there is an equivalent in Mac).
WARNING: modify registry values at your own risk.
These values can be changed and will affect what you see on that particular machine only.
I haven't played with them extensively but the tollerance value seems to be the most productive.
The lower the value the smoother the resolution of your profile.
i.e. the smaller the deviation from the true curve.
The existing shells will not alter straight away but will if you move or edit them in any way. Re-building the 3D view does nothing.
The image attached here has a tollerance value of 100 (which is the default).
The problem is as soon as the file is opened on another machine they will see the shell resolution set as with the default settings unless that machine registry has been modified as well.
So all machines that will open the file need to have the registry set the same - otherwise your model can change dramatically.
I stress I would not recommend doing this.
We need GS to implement an adjustable tollerence setting in the shell tool itself.
Barry.
One of the forum moderators.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11