How to bend a surface?

With some help from here I generated a geometry in grasshopper and then made a surface from that geometry here is what I have so far:

Now, I want to bend the corners of that surface like this (I bend one of the corner in Rhino as an example):

Or push it down from the center of the geometry like this:

So far what I have is the geometry and the surface and I do not know how to bend it or add control points, etc. Basically what I want to do is to create a sort of a bowl and be able to change the deepness, geometry, etc.

This is what I have so far in grasshopper

Suface%20bending.gh

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on December 20, 2016 at 11:44pm

Hi.

Take a look at the attached. Best.

Attachments:

Sufacebending_re.gh, 13 KB

Permalink Reply by Jesus O. Villarreal G. on December 21, 2016 at 5:04am

Hello! thank you!

It looks great! Unfortunately, it crashes when I try to change the values... why does it looks like a render and not shaded?

Another thing is that I think that it is probably better to bend it from the center instead of the corners... For example imagine that the surface had a control point in the center and I could just move down that point (-z) an make that surface concave.