meshiah, sort-circle_tool and ZhCG_PolyTools (what i use) both can do what you want. Just tried it, deleted one quad polygon and offset verts so that it's not exactly perfect rectangle. sort-circle_tool and ZhCG_PolyTools made that polygon back to perfect rectangle again. What would i like one of these tools to do is if…
I wouldn't mind if someone would port MX_Roundish for XSI into Maya. http://maxfoxlab.com/mx_roundish.html I even sent an email to that guy who made it but unfortunately he is not dealing with Maya. He said: "Unfortunately, I'm not doing the creation of plug-ins for Maya. But the algorithm of this plugin is not difficult,…
Spherize can do that. http://www.creativecrash.com/maya/script/spherize-selection-maya-plugin-pymel Also, this might work: Select the vertices you need>Create Deformers(Animation)>Sculpt Deformer(default settings) and then scale the locator accordingly to start ¨spherifying¨ the selected vertices accordlingly.Maybe will…