The entire geometry was made in Grasshopper (fully parametric), without even a single point drawn in the Rhino view port. The rendering was done using the ray-traced mode in Rhino.
The only external plugin I used was kangaroo 2 for some form-finding. Fibonacci spirals also came in very handy
Very beautiful. Would you share the definition?
Interesting 
but if it was complete from other side
Thank you!
Here is the definition:
Conch.gh (84.4 KB)
Just make sure to disable the solver at the start, and also to have Kangaroo installed. You might need to disable/enable components sequentially based on the speed of your system.
Cheers!
Conch © 2020 by Adwait Dake is licensed under CC BY-NC-SA 4.0 
How do you mean exactly?
In the first picture, I supposed it was a whole pitcher, but there was a gap in the other side. I wished the separate edges were connected.
Thank you for sharing!
