Patricio González Vivo is an Argentine artist and developer based in New York who calls himself a digital alchemist, creating artifacts of contemplation about time and space. With Jen Lowe he wrote The Book of Shaders.

Shaders is like a computational language designed for geometry, color and light—it's the language of light.
Patricio González Vivo, Jen Lowe and Patricio González Vivo on Democratizing Knowledge
I came to Jen saying, I have this idea for a book of writing a gentle Shader tutorial in the spirit of The Inner Structure of the I Ching: The Book of Transformations, where each chapter was an evolution of the previous one.
Patricio González Vivo, Jen Lowe and Patricio González Vivo on Democratizing Knowledge