Smoothing is an option for selecting whether or not to apply smoothing to inner curves in 3D view.
Enabling it will show smoothly folded inner curves.
Disabling it will show sharply folded inner curves.
Inner Curve > UI Panel > Properties > Inner Curve Properties > Smoothing
- Select the inner curves in All/ Curves Selection Mode.
- Enable or disable the function vis UI Panel > Properties Tab > Inner Curve Properties > Smoothing.
- You can check how smoothly the inner curves are applied in 3D view.
※ Note: Smoothing results can be checked only when enabling smoothing in 3D view.