But wait -- there's more --
https://en.wikipedia.org/wiki/Superellipse
The superellipse is the set of shapes between a square and a circle. Thus it is malleable.
Photoshop is a train wreck lately, pay to subscribe and they keep all your stuff. The last version I had was $2 at Goodwill (their computer store in Delta Oaks)
Blender is free and Open Source. So there's no brakes on the train.
duckduckgo.com/?q=superellipse+in+blender&ia=web
There're various ways to skin that cat (oops) -- the Bevel Operator, grid-to-circle, Geometry Nodes, & etc. I like the Geodesic Dome add-on:
docs.blender.org/manual/en/latest/addons/add_mesh/geodesic_domes.html
Quote:
Geodesic Object Parameters
Frequency
Subdivide base triangles.
Radius
Overall radius.
Eccentricity
Scaling on the X/Y axis.
Squish
Scaling on the Z axis.
Square (X/Y)
Superellipse action in X/Y.
Square (Z)
Superellipse action in Z.
Rotate (X/Y)
Rotate superellipse action in X/Y.
Rotate (Z)
Rotate superellipse action in Z.
Dual
Faces become vertices, vertices become faces, edges flip.
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