Croissant by FORWISS, Passau

Description

Croissant is a surface parametrized as follows: x=(R+1.6 r sin(v/2) cos(u)) cos(v), y=r sin(v/2) sin(u), z=(R+r sin(v/2) cos(u)) sin(v). **Authors: [Erich Fuchs](https://www.forwiss.uni-passau.de/~fuchs/), [Manfred Kuhnkies](https://www.forwiss.uni-passau.de/de/staff/95/) and [Alexander Zimmermann](http://www.forwiss.uni-passau.de/~zimmerma) from [FORWISS Institute](https://www.forwiss.uni-passau.de/de/projects/64/)** You can download this model directly from [IMAGINARY](http://imaginary.org/hands-on/twelve-algebraic-sculptures) (no login required)