Context Free is a program that generate images from written instructions called a grammar. These grammars are sets of non-deterministic rules to produce images. It is able to generate complex artworks from very simple grammars.
The first artwork was published in Community of Variation book which is a collection of very high resolution works from the first two and half years by 29 members of the CFDG community.
The second artwork was an attempt at a fish eye which ended up looking like oil painting.