Hey there iam looking for a way to recreate this in rhino.
in blender its called loop tools
i forwarded to a specific timecode
Hello - QuadRemesh will do that from an existing object - Set Detect hard edges, SubD output and SubD Creases if you want a subD object.
You can get a circle-based structure with QuadRemesh if you give it a guide curve - extrudin that into a hemisphere is a different matter - I’d go about it as above.
-Pascal
Thanks for your answer Pascal.
but i would need more control. The remeshing ist too unprecise
Another method, the result is better than without removal in the circle.

You can pull vertices to the selected curve using ToCurve option of Align command:
Hi inju
Thank’s 