Ofc, nearly everthing can be done in grasshopper. But may consider a few questions:
Is it necessary that it‘s done with grasshopper?
Is ist the fastest way?
The easiest way?
The best way?
Does it need to be parametric?
What are your params? What are you trying to achieve?
For example: picture 3 Looks like some crazy future Science-Fiction Concept. So Most of the time theay are just created by modeling. May it‘s not even 3D.
Is there a plugin which can do the Trick?
- for what? Linking a curve and get all stuff you can Imagine?
First picture could be a convex hull. Mesh triangulation. It could also be „organic“ mesh, which is being reduced.
- picture could be a Box Morph Or minimal surface.
Without knowing the background, it‘s just guessing.
Is it possible: yes
Is it necessary: depending on you