Hi have been trying to flat bottom or top a sphere with min max bounds in vops with a ramp and a fit.

Its not working as want it to.
I'm not being able to interpret to Houdini how to interpolate between top bulge and a bottom bulge. I aim to execute this in a procedural way. I need help!

maybe you can do the reverse, start from the final shape you want (a cone) and normalize all its points to get a sphere. Apply some masks and ramps to shape it better…