
The cylinders have radius and height as parametric variables. Through the command heightfiled rhino creates a surface that has a grid of points where the coordinates x, y and z correspond to the RGB values at that point on the surface. The feature that join the parametric grid points and components of the cylinder is (x / y) + z. The test was done with the face of Obama. Thanks to Zach Downey, architectural designer, for the tutorial.
