Process art emerged in the United States and Europe in the mid-1960s as a response to Minimalism. Where Minimalist sculpture was machined and finished, process art put the act of making first: gathering, pouring, cutting, hanging and dropping were allowed to determine the final form, and materials were left to behave as materials do - sagging, hardening, wrinkling, decaying. Robert Morris, who called the approach 'anti-form', defined it in a landmark Guggenheim exhibition and essay at the end of the decade; Eva Hesse's sagging latex and cheesecloth structures, shown in the Whitney's 1969 exhibition 'Anti-Illusion: Process/Materials', gave it its most memorable shapes. Drawing on Pollock's poured drip paintings, Dada chance and performance art, process artists let gravity, time and improvisation act as co-authors of the work.
Addendum by Eva Hesse , Tate Liverpool , England.CC BY-SA 3.0 (credit: Rept0n1x) · source
Defining characteristics
Making recorded in the finished form: pours, drops, cuts, stacks, gravity pulls
Materials left to behave naturally - sagging, hardening, wrinkling, decaying
Eccentric, irregular forms in erratic arrangements instead of composed geometry