Bulge a Plane - How to keep edges unaffected?

[Morne]

Hi all

I have a plane with couple of segments. How can I bulge the thing without affecting the sides? Vertex soft selection doesnt work, because it also affects the middle verteces on the edges, and not enough in the "corners"

[Raven]

Hey Morne

Just create a plane with 3 length and width segments. Edit poly and lift the 4 verts in the middle. add turbosmooth. done

[Morne]

Hehe duh!
That is hilariously simple and I actually used that same trick to create ETFE a few years back

Thanks Raven
That's 2 now already for you
(last was edge length in displacement)